/* roulang page: index */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --primary:#6E8BFF;
  --accent:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --text:#EDF2FF;
  --text-2:#B7C3DD;
  --text-3:#8593B2;
  --line:rgba(198,214,255,.14);
  --line-strong:rgba(143,227,212,.35);
  --shadow-card:0 18px 50px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:13px;
  --serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  --sec-y:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 620px at 12% -8%,rgba(143,227,212,.10),transparent 62%),
    radial-gradient(820px 600px at 92% 8%,rgba(110,139,255,.12),transparent 60%),
    radial-gradient(760px 560px at 78% 92%,rgba(217,138,154,.09),transparent 66%),
    linear-gradient(180deg,#060A14 0%,#070C1A 46%,#060A14 100%);
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  inset:-10%;
  z-index:-1;
  background-image:
    radial-gradient(circle at 18% 24%,rgba(198,214,255,.9) 0 1px,transparent 1.6px),
    radial-gradient(circle at 62% 12%,rgba(143,227,212,.7) 0 1px,transparent 1.6px),
    radial-gradient(circle at 84% 58%,rgba(198,214,255,.6) 0 1px,transparent 1.6px),
    radial-gradient(circle at 34% 78%,rgba(217,138,154,.55) 0 1px,transparent 1.6px);
  background-size:340px 340px,420px 420px,500px 500px,380px 380px;
  opacity:.35;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  letter-spacing:.02em;
  color:var(--text);
  margin:0;
}
h1{font-size:clamp(2.1rem,4vw,3.4rem);line-height:1.28;}
h2{font-size:clamp(1.6rem,2.7vw,2.4rem);line-height:1.35;}
h3{font-size:1.25rem;line-height:1.5;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.section{padding:var(--sec-y) 0;position:relative;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  padding:6px 14px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(143,227,212,.06);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(143,227,212,.9);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head .lede{
  color:var(--text-2);
  font-size:16px;
  max-width:560px;
  margin:10px 0 0;
}
.section-link{
  font-size:14px;
  color:var(--accent);
  border-bottom:1px solid rgba(143,227,212,.4);
  padding-bottom:3px;
  white-space:nowrap;
}
.section-link:hover{border-color:var(--accent);}

/* ============ 按钮 ============ */
.btn-primary-soft,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:12px 26px;
  border-radius:var(--r-sm);
  font-size:16px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  cursor:pointer;
}
.btn-primary-soft{
  background:linear-gradient(135deg,#8FE3D4 0%,#6E8BFF 96%);
  color:#08101F;
  box-shadow:0 10px 32px rgba(110,139,255,.30);
}
.btn-primary-soft:hover{
  transform:translateY(-2px);
  color:#060A14;
  box-shadow:0 16px 42px rgba(110,139,255,.42);
  filter:brightness(1.05);
}
.btn-primary-soft:active{transform:translateY(1px) scale(.995);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.08);
  border-color:var(--line-strong);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px) scale(.995);}
.btn-block{width:100%;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(8,12,26,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-nav{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-top:0;
  padding-bottom:0;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  gap:3px;
  flex-shrink:0;
}
.brand-top{
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--text);
}
.brand-bottom{
  font-size:11px;
  letter-spacing:.30em;
  color:var(--accent);
  opacity:.9;
}
.brand:hover .brand-top{color:var(--accent);}
.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-list a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-list a:hover{
  color:var(--text);
  background:rgba(255,255,255,.05);
}
.nav-list a.is-active{
  color:var(--text);
  background:rgba(143,227,212,.09);
  border-color:var(--line-strong);
  box-shadow:0 0 22px rgba(143,227,212,.14) inset;
}
.nav-list a.is-active::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px rgba(143,227,212,.9);
}
.nav-cta{
  font-size:15px;
  padding:10px 20px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  color:var(--accent);
  background:rgba(143,227,212,.07);
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-cta:hover{
  background:rgba(143,227,212,.16);
  color:#DFFBF5;
  box-shadow:0 0 24px rgba(143,227,212,.22);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.03);
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:1.6px;
  border-radius:2px;
  background:var(--text);
  box-shadow:0 0 6px rgba(143,227,212,.45);
}
.offcanvas.site-drawer{
  background:var(--bg-2);
  color:var(--text);
  width:min(86vw,340px);
  border-right:1px solid var(--line);
}
.site-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.site-drawer .offcanvas-body{padding:16px 20px 28px;}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 4px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid rgba(198,214,255,.08);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--accent);}
.drawer-cta{margin-top:22px;}
.btn-close-custom{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:18px;
  line-height:1;
}

/* ============ Hero ============ */
.hero{
  padding:72px 0 76px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-180px;
  border-radius:50%;
  border:1px solid rgba(143,227,212,.10);
  box-shadow:0 0 0 60px rgba(110,139,255,.03),0 0 0 130px rgba(110,139,255,.02);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:56px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-copy h1{
  margin-bottom:20px;
  text-shadow:0 0 40px rgba(110,139,255,.18);
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:520px;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:34px;
}
.hero-notes{
  display:grid;
  gap:10px;
  padding-top:24px;
  border-top:1px solid var(--line);
  max-width:500px;
}
.hero-notes li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--text-2);
}
.hero-notes li::before{
  content:"";
  flex:0 0 auto;
  width:7px;height:7px;
  margin-top:9px;
  border-radius:2px;
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
.hero-media{
  display:flex;
  justify-content:center;
}
.phone-frame{
  position:relative;
  width:100%;
  max-width:330px;
  aspect-ratio:9/16;
  border-radius:28px;
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:rgba(17,26,54,.6);
  box-shadow:var(--glow),var(--shadow-card);
}
.phone-frame img{
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
  opacity:.88;
}
.phone-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.15) 0%,rgba(6,10,20,.05) 42%,rgba(6,10,20,.88) 100%);
}
.play-btn{
  position:absolute;
  top:44%;left:50%;
  transform:translate(-50%,-50%);
  width:64px;height:64px;
  border-radius:50%;
  border:1px solid rgba(143,227,212,.5);
  background:rgba(10,16,36,.5);
  backdrop-filter:blur(8px);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  z-index:2;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.play-btn:hover{
  transform:translate(-50%,-50%) scale(1.07);
  background:rgba(143,227,212,.18);
  box-shadow:0 0 32px rgba(143,227,212,.35);
}
.play-btn svg{width:20px;height:20px;fill:#DFFBF5;margin-left:3px;}
.phone-bar{
  position:absolute;
  left:14px;right:14px;bottom:16px;
  z-index:2;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(10,16,36,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.phone-bar .pb-title{
  font-size:14px;
  color:var(--text);
  margin:0 0 6px;
  font-weight:600;
}
.phone-bar .pb-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:var(--text-3);
}
.dots{display:flex;gap:5px;}
.dots i{
  width:5px;height:5px;border-radius:50%;
  background:rgba(198,214,255,.28);
}
.dots i.on{background:var(--accent);box-shadow:0 0 8px rgba(143,227,212,.9);}

/* ============ 指标条 ============ */
.metrics{
  display:grid;
  grid-template-columns:1.15fr .95fr 1fr .9fr;
  gap:18px;
  margin-top:8px;
}
.metric{
  padding:22px 22px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(17,26,54,.78),rgba(10,16,36,.55));
  backdrop-filter:blur(14px);
  transition:border-color .25s ease,transform .25s ease;
}
.metric:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.metric .m-num{
  font-family:var(--serif);
  font-size:clamp(1.5rem,2.4vw,2rem);
  color:var(--accent);
  letter-spacing:.03em;
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:6px;
}
.metric .m-label{font-size:14px;color:var(--text-2);line-height:1.6;}

/* ============ 片段流 ============ */
.clip-rail{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.clip-rail::-webkit-scrollbar{height:6px;}
.clip-rail::-webkit-scrollbar-thumb{background:rgba(143,227,212,.25);border-radius:99px;}
.clip-card{
  flex:0 0 auto;
  width:230px;
  scroll-snap-align:start;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(17,26,54,.85),rgba(8,13,28,.9));
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.clip-card:hover{
  transform:translateY(-6px);
  border-color:var(--line-strong);
  box-shadow:var(--glow);
}
.clip-card.is-lead{width:290px;}
.clip-thumb{
  position:relative;
  aspect-ratio:9/16;
  overflow:hidden;
}
.clip-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.clip-card:hover .clip-thumb img{transform:scale(1.04);}
.clip-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.05) 40%,rgba(6,10,20,.85) 100%);
}
.clip-tag{
  position:absolute;
  top:12px;left:12px;
  z-index:2;
  font-size:12px;
  padding:4px 11px;
  border-radius:999px;
  color:#DFFBF5;
  background:rgba(10,16,36,.66);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);
}
.clip-index{
  position:absolute;
  top:12px;right:12px;
  z-index:2;
  font-size:12px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
  letter-spacing:.1em;
}
.clip-mini-play{
  position:absolute;
  right:12px;bottom:12px;
  z-index:2;
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid rgba(143,227,212,.45);
  background:rgba(10,16,36,.55);
  display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(8px);
}
.clip-mini-play svg{width:11px;height:11px;fill:#DFFBF5;margin-left:2px;}
.clip-body{padding:16px 18px 20px;}
.clip-body h3{
  font-size:16px;
  font-family:var(--sans);
  font-weight:600;
  line-height:1.55;
  margin-bottom:8px;
}
.clip-body p{font-size:13.5px;color:var(--text-3);margin:0;line-height:1.6;}

/* ============ 清单区 ============ */
.checklist-grid{
  display:grid;
  grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  gap:48px;
  align-items:start;
}
.checklist-aside{
  position:sticky;
  top:96px;
}
.checklist-aside p{color:var(--text-2);font-size:16px;margin-top:16px;}
.aside-note{
  margin-top:24px;
  padding:18px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(143,227,212,.05);
  font-size:14px;
  color:var(--text-2);
}
.list-rows{border-top:1px solid var(--line);}
.list-row{
  display:grid;
  grid-template-columns:56px 96px minmax(0,1fr);
  gap:18px;
  align-items:center;
  padding:22px 8px;
  border-bottom:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease;
}
.list-row:hover{background:rgba(255,255,255,.035);padding-left:14px;}
.row-num{
  font-family:var(--serif);
  font-size:20px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.list-row:hover .row-num{color:var(--accent);}
.row-thumb{
  width:96px;height:70px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;}
.row-main h3{
  font-size:17px;
  font-family:var(--sans);
  font-weight:600;
  margin-bottom:6px;
  line-height:1.5;
}
.row-main p{font-size:14px;color:var(--text-3);margin:0 0 10px;line-height:1.65;}
.row-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-size:12.5px;
  color:var(--text-3);
}
.chip{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  font-size:12px;
  color:var(--accent);
  background:rgba(143,227,212,.08);
  border:1px solid rgba(143,227,212,.22);
}
.chip-rose{
  color:var(--rose);
  background:rgba(217,138,154,.08);
  border-color:rgba(217,138,154,.24);
}

/* ============ 最新信息 CMS ============ */
.news-panel{
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(17,26,54,.62),rgba(8,13,28,.72));
  backdrop-filter:blur(14px);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.news-grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:28px;
}
.lead-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:rgba(10,16,36,.72);
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.lead-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--glow);}
.lead-card .lead-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
}
.lead-card .lead-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.lead-card:hover .lead-thumb img{transform:scale(1.03);}
.lead-body{padding:22px 24px 26px;}
.lead-body h3{font-size:1.35rem;margin:12px 0 10px;line-height:1.5;}
.lead-body p{font-size:14.5px;color:var(--text-2);margin:0 0 16px;line-height:1.7;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:block;
  padding:18px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(10,16,36,.6);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.news-item:hover{
  border-color:var(--line-strong);
  background:rgba(17,26,54,.85);
  transform:translateY(-3px);
}
.news-item h4{
  font-family:var(--sans);
  font-size:15.5px;
  font-weight:600;
  line-height:1.55;
  margin:10px 0 8px;
  color:var(--text);
}
.news-item p{font-size:13px;color:var(--text-3);margin:0 0 10px;line-height:1.6;}
.news-item .row-meta{font-size:12px;}
.empty-state{
  border:1px dashed rgba(198,214,255,.22);
  border-radius:var(--r-lg);
  padding:52px 28px;
  text-align:center;
  background:rgba(10,16,36,.5);
}
.empty-state .e-icon{
  width:52px;height:52px;
  margin:0 auto 16px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
}
.empty-state p{color:var(--text-2);margin:0 0 18px;font-size:15px;}

/* ============ 口碑条 ============ */
.quote-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:22px;
}
.quote-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(158deg,rgba(17,26,54,.8),rgba(8,13,28,.85));
  padding:28px 30px;
  position:relative;
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease;
}
.quote-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.quote-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--accent),rgba(217,138,154,.7));
  opacity:.7;
}
.quote-card.wide{padding:34px 36px;}
.quote-card p{
  font-family:var(--serif);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  margin:0 0 20px;
}
.quote-card.wide p{font-size:19px;}
.quote-foot{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  font-family:var(--serif);
  color:#08101F;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  flex:0 0 auto;
}
.quote-name{font-size:14px;color:var(--text);font-weight:600;}
.quote-src{font-size:12px;color:var(--text-3);}
.quote-stack{display:flex;flex-direction:column;gap:22px;}
.quote-stack .quote-card{padding:24px 26px;}
.quote-stack .quote-card p{font-size:15px;margin-bottom:16px;}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.accordion.custom-accordion .accordion-item{
  background:rgba(10,16,36,.62);
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.accordion.custom-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:var(--line-strong);
  background:rgba(17,26,54,.8);
  box-shadow:0 0 0 1px rgba(143,227,212,.12);
}
.accordion.custom-accordion .accordion-button{
  background:transparent;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  padding:20px 54px 20px 22px;
  border:none;
  box-shadow:none;
  position:relative;
}
.accordion.custom-accordion .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  opacity:0;
  transition:opacity .25s ease;
}
.accordion.custom-accordion .accordion-button:not(.collapsed)::before{opacity:1;}
.accordion.custom-accordion .accordion-button:not(.collapsed){
  color:var(--accent);
  background:transparent;
}
.accordion.custom-accordion .accordion-button:focus{
  box-shadow:none;
  border-color:transparent;
}
.accordion.custom-accordion .accordion-button::after{
  content:"";
  position:absolute;
  right:20px;top:50%;
  width:14px;height:14px;
  margin:0;
  transform:translateY(-50%);
  background:none;
  border-right:1.6px solid var(--accent);
  border-bottom:1.6px solid var(--accent);
  transition:transform .28s ease;
  transform:translateY(-70%) rotate(45deg);
}
.accordion.custom-accordion .accordion-button:not(.collapsed)::after{
  transform:translateY(-30%) rotate(-135deg);
}
.accordion.custom-accordion .accordion-body{
  padding:0 24px 22px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.help-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(17,26,54,.85),rgba(8,13,28,.9));
  padding:28px;
  position:sticky;
  top:96px;
}
.help-card h3{font-size:1.2rem;margin-bottom:12px;}
.help-card p{font-size:14.5px;color:var(--text-2);margin-bottom:20px;}
.help-list{display:grid;gap:12px;margin-bottom:22px;}
.help-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.65;
}
.help-list li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:8px;
  border-radius:50%;
  border:1px solid var(--accent);
  box-shadow:0 0 8px rgba(143,227,212,.6);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(17,26,54,.92),rgba(8,13,28,.95));
  padding:46px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-120px;top:-160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(143,227,212,.18),transparent 66%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.95rem);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  background:#04070F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(143,227,212,.35),rgba(110,139,255,.28),rgba(217,138,154,.28)) 1;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:300px;}
.footer-col h4{
  font-family:var(--sans);
  font-size:14px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text);
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--accent);}
.footer-legal{
  border-top:1px solid rgba(198,214,255,.10);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12px;
  color:var(--text-3);
}
.footer-legal span{line-height:1.7;}

/* ============ 移动端底部条 ============ */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  display:none;
  gap:12px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(8,12,26,.94);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(110%);
  transition:transform .3s ease;
}
.mobile-bar.show{transform:translateY(0);}
.mobile-bar .btn-primary-soft{flex:1;min-height:46px;font-size:15px;padding:10px 16px;}
.to-top{
  width:46px;height:46px;
  flex:0 0 auto;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.to-top svg{width:16px;height:16px;fill:var(--text);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec-y:74px;}
  .hero-grid{gap:38px;}
  .checklist-grid{gap:34px;}
  .metrics{grid-template-columns:1fr 1fr;}
  .cta-band{padding:38px 34px;}
}
@media (max-width:991.98px){
  .nav-list,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-copy h1{font-size:clamp(1.9rem,6vw,2.5rem);}
  .hero-media{order:2;}
  .phone-frame{max-width:300px;}
  .checklist-grid{grid-template-columns:1fr;gap:28px;}
  .checklist-aside{position:static;}
  .news-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .help-card{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary-soft,.cta-actions .btn-ghost{flex:1;}
}
@media (max-width:767.98px){
  :root{--sec-y:52px;}
  body{font-size:16px;}
  .site-nav{height:60px;}
  .brand-top{font-size:17px;letter-spacing:.12em;}
  .brand-bottom{font-size:10px;letter-spacing:.26em;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn-primary-soft,.hero-actions .btn-ghost{width:100%;}
  .metrics{grid-template-columns:1fr;gap:14px;}
  .clip-card{width:220px;}
  .clip-card.is-lead{width:250px;}
  .list-row{grid-template-columns:38px 76px minmax(0,1fr);gap:12px;padding:18px 4px;}
  .row-thumb{width:76px;height:58px;}
  .row-main h3{font-size:15.5px;}
  .row-main p{font-size:13px;}
  .news-panel{padding:18px;}
  .quote-card.wide{padding:24px;}
  .quote-card.wide p{font-size:16.5px;}
  .cta-band{padding:30px 22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-primary-soft,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-legal{flex-direction:column;align-items:flex-start;}
  .mobile-bar{display:flex;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:575.98px){
  .site-container{padding:0 16px;}
  .phone-frame{max-width:320px;}
  .list-row{grid-template-columns:34px minmax(0,1fr);}
  .row-thumb{display:none;}
  .section-tight{padding:44px 0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --primary:#6E8BFF;
  --mint:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --text:#EDF2FF;
  --muted:#B7C3DD;
  --dim:#8593B2;
  --line:rgba(198,214,255,.14);
  --line-strong:rgba(143,227,212,.35);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:13px;
  --shadow:0 18px 50px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
  --container:1200px;
  --font-serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 600px at 10% -5%, rgba(143,227,212,.10), transparent 60%),
    radial-gradient(900px 700px at 100% 12%, rgba(217,138,154,.08), transparent 62%),
    radial-gradient(820px 620px at 50% 112%, rgba(110,139,255,.11), transparent 66%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--mint);text-decoration:none;transition:color .22s ease;}
a:hover{color:#c8fff4;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:.02em;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
::selection{background:rgba(143,227,212,.28);color:#fff;}

.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,10,20,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.read-progress{
  position:absolute;
  left:0;
  bottom:0;
  height:3px;
  width:0;
  background:linear-gradient(90deg,#6E8BFF,#8FE3D4);
  box-shadow:0 0 14px rgba(143,227,212,.6);
  transition:width .12s linear;
}
.site-nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:26px;}
.brand{display:inline-flex;flex-direction:column;line-height:1.12;text-decoration:none;flex-shrink:0;}
.brand-top{font-family:var(--font-serif);font-size:20px;font-weight:600;letter-spacing:.10em;color:var(--text);}
.brand-bottom{font-size:11px;letter-spacing:.30em;color:var(--mint);margin-top:3px;}
.brand:hover .brand-top{color:#fff;}
.nav-list{list-style:none;display:flex;align-items:center;gap:4px;padding:0;margin:0;}
.nav-list a{
  display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:999px;
  font-size:15px;color:var(--muted);
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav-list a.is-active{
  color:var(--text);
  background:rgba(110,139,255,.14);
  border-color:var(--line-strong);
  box-shadow:0 0 18px rgba(143,227,212,.18);
}
.nav-list a.is-active::before{
  content:"";width:4px;height:4px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 8px var(--mint);
  margin-right:8px;flex-shrink:0;
}
.nav-cta{
  padding:10px 20px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,#8FE3D4,#6E8BFF);
  color:#08101F;font-weight:600;font-size:14px;
  box-shadow:0 10px 26px rgba(110,139,255,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
  flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);color:#04101a;box-shadow:0 14px 34px rgba(143,227,212,.34);filter:brightness(1.05);}
.nav-cta:active{transform:translateY(0) scale(.99);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--mint);box-shadow:0 0 6px rgba(143,227,212,.6);}

/* ---------- drawer ---------- */
.site-drawer{background:var(--bg-2)!important;border-left:1px solid var(--line);width:330px!important;color:var(--text);}
.site-drawer .offcanvas-header{align-items:flex-start;padding:22px 22px 14px;border-bottom:1px solid var(--line);}
.site-drawer .offcanvas-body{padding:20px 22px 30px;display:flex;flex-direction:column;}
.drawer-close{
  width:40px;height:40px;position:relative;flex-shrink:0;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:12px;cursor:pointer;
}
.drawer-close span{position:absolute;left:50%;top:50%;width:16px;height:2px;background:var(--mint);border-radius:2px;}
.drawer-close span:nth-child(1){transform:translate(-50%,-50%) rotate(45deg);}
.drawer-close span:nth-child(2){transform:translate(-50%,-50%) rotate(-45deg);}
.drawer-list{list-style:none;padding:0;margin:0 0 26px;}
.drawer-list li + li{border-top:1px solid var(--line);}
.drawer-list a{display:flex;align-items:center;min-height:48px;font-size:16px;color:var(--muted);}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--mint);}

/* ---------- hero / crumbs ---------- */
.article-hero{position:relative;padding:52px 0 40px;overflow:hidden;}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.16;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.95),transparent 88%);
  pointer-events:none;
}
.article-hero .site-container{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:22px;}
.crumbs a{color:var(--dim);}
.crumbs a:hover{color:var(--mint);}
.crumbs .sep{color:rgba(198,214,255,.28);}
.crumbs .current{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--mint);
  background:rgba(143,227,212,.10);
  border:1px solid rgba(143,227,212,.32);
}
.article-head{max-width:880px;}
.article-head h1{
  font-size:clamp(2rem,3.6vw,3rem);
  margin:18px 0 0;
  color:var(--text);
  letter-spacing:.01em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--dim);font-variant-numeric:tabular-nums;}
.article-meta .dot{color:rgba(198,214,255,.26);}

/* ---------- layout ---------- */
.section{padding:56px 0 80px;}
.prose-wrap{max-width:760px;}
.prose{
  font-size:18px;line-height:1.95;color:#DCE4F6;
  overflow-wrap:break-word;word-break:break-word;
}
.prose p{margin:0 0 1.15em;text-align:left;}
.prose h2{
  font-size:clamp(1.45rem,2.4vw,1.85rem);
  margin:52px 0 16px;padding-left:16px;position:relative;color:var(--text);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--mint),var(--primary));
  box-shadow:0 0 12px rgba(143,227,212,.5);
}
.prose h3{font-size:1.25rem;margin:34px 0 12px;color:var(--text);}
.prose h4{font-size:1.08rem;margin:26px 0 10px;color:var(--muted);}
.prose blockquote{
  margin:30px 0;padding:20px 24px;
  background:linear-gradient(150deg,rgba(17,26,54,.9),rgba(10,16,36,.82));
  border-left:3px solid var(--rose-deep);
  border-radius:0 16px 16px 0;
  font-family:var(--font-serif);
  color:var(--muted);
  box-shadow:var(--shadow);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.35em;}
.prose ul{list-style:none;padding-left:1.2em;}
.prose ul li{position:relative;}
.prose ul li::before{
  content:"";position:absolute;left:-1.05em;top:.78em;
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 8px rgba(143,227,212,.55);
}
.prose li{margin:.42em 0;}
.prose img{border-radius:16px;border:1px solid var(--line);margin:26px 0;}
.prose figure{margin:26px 0;}
.prose figcaption{font-size:12px;color:var(--dim);text-align:center;margin-top:10px;}
.prose a{color:var(--mint);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:#d9fff8;}
.prose strong{color:#fff;font-weight:600;}
.prose hr{border:none;height:1px;background:var(--line);margin:40px 0;}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:26px 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.prose th{background:rgba(17,26,54,.92);color:var(--text);font-weight:600;}
.prose td{color:var(--muted);}
.prose code{background:rgba(143,227,212,.10);color:var(--mint);padding:2px 7px;border-radius:6px;font-size:.92em;}

/* ---------- empty ---------- */
.empty-panel{
  padding:52px 32px;text-align:center;
  background:linear-gradient(150deg,rgba(17,26,54,.9),rgba(10,16,36,.85));
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);background:rgba(143,227,212,.08);
}
.empty-icon svg{width:26px;height:26px;stroke:var(--mint);fill:none;stroke-width:1.6;}
.empty-panel h2{font-size:1.4rem;margin-bottom:10px;}
.empty-panel p{color:var(--dim);font-size:15px;max-width:440px;margin:0 auto 24px;}

/* ---------- sidebar ---------- */
.side-sticky{position:sticky;top:96px;}
.side-card{
  background:linear-gradient(160deg,rgba(17,26,54,.92),rgba(10,16,36,.86));
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;margin-bottom:20px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.side-card h3{font-size:16px;letter-spacing:.04em;margin-bottom:14px;color:var(--text);}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li + li{margin-top:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14px;color:var(--muted);
  transition:background .2s ease,color .2s ease,padding .2s ease;
}
.side-list a:hover{background:rgba(255,255,255,.06);color:var(--mint);padding-left:16px;}
.side-list a span.arrow{color:rgba(143,227,212,.7);font-size:12px;}
.side-note{font-size:13px;line-height:1.85;color:var(--dim);}
.side-note + .side-note{margin-top:10px;}
.side-btn{
  display:flex;align-items:center;justify-content:center;
  min-height:46px;margin-top:16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--text);font-size:14px;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.side-btn:hover{background:rgba(255,255,255,.1);border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);}
.side-btn.primary{
  background:linear-gradient(135deg,#8FE3D4,#6E8BFF);color:#08101F;font-weight:600;border:none;
  box-shadow:0 10px 26px rgba(110,139,255,.26);
}
.side-btn.primary:hover{color:#04101a;filter:brightness(1.05);}

/* ---------- related ---------- */
.related-block{margin-top:56px;}
.block-title{font-size:clamp(1.35rem,2.2vw,1.7rem);margin-bottom:8px;}
.block-sub{font-size:14px;color:var(--dim);margin-bottom:24px;}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.rec-card{
  display:flex;flex-direction:column;height:100%;
  background:linear-gradient(160deg,rgba(17,26,54,.88),rgba(10,16,36,.82));
  border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;color:inherit;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow);color:inherit;}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.rec-body h4{font-size:17px;line-height:1.5;color:var(--text);}
.rec-body p{font-size:14px;line-height:1.75;color:var(--dim);}
.rec-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--dim);margin-top:auto;font-variant-numeric:tabular-nums;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:64px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(17,26,54,.94),rgba(10,16,36,.9));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band::after{
  content:"";position:absolute;right:-140px;top:-180px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(143,227,212,.16),transparent 66%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.3rem,2.2vw,1.75rem);margin-bottom:8px;position:relative;z-index:1;}
.cta-band p{font-size:14px;color:var(--dim);position:relative;z-index:1;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,#8FE3D4,#6E8BFF);
  color:#08101F;font-weight:600;font-size:15px;border:none;
  box-shadow:0 12px 30px rgba(110,139,255,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-glow:hover{transform:translateY(-2px);color:#04101a;filter:brightness(1.05);box-shadow:0 16px 40px rgba(143,227,212,.34);}
.btn-glow:active{transform:translateY(1px) scale(.99);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);color:var(--text);
  font-weight:500;font-size:15px;border:1px solid var(--line);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-line:hover{background:rgba(255,255,255,.1);border-color:var(--line-strong);color:var(--text);transform:translateY(-2px);}
.btn-line:active{transform:translateY(1px) scale(.99);}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:88px;padding:64px 0 26px;
  background:#04070F;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(143,227,212,.45),rgba(110,139,255,.35),transparent);
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:34px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--dim);max-width:340px;}
.footer-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:16px;color:var(--text);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:var(--dim);}
.footer-col a:hover{color:var(--mint);}
.footer-legal{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .site-container{padding:0 20px;}
  .nav-list a{padding:8px 11px;font-size:14px;}
  .article-hero{padding:44px 0 32px;}
}
@media (max-width:991.98px){
  .site-nav{height:60px;}
  .nav-list{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:44px 0 60px;}
  .side-sticky{position:static;margin-top:36px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-line{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-meta{font-size:12px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-head h1{font-size:clamp(1.7rem,6.4vw,2.1rem);}
  .prose{font-size:16.5px;line-height:1.9;}
  .prose h2{font-size:1.32rem;margin-top:40px;}
  .prose h3{font-size:1.16rem;}
  .related-grid{grid-template-columns:1fr;}
  .article-hero{padding:34px 0 26px;}
  .site-footer{margin-top:60px;padding:48px 0 22px;}
}
@media (max-width:575.98px){
  .site-container{padding:0 16px;}
  .brand-top{font-size:18px;letter-spacing:.06em;}
  .brand-bottom{font-size:10px;letter-spacing:.24em;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-legal{flex-direction:column;gap:8px;}
  .cta-band{padding:26px 20px;margin-top:48px;}
  .empty-panel{padding:38px 20px;}
  .article-hero::before{opacity:.12;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --primary:#6E8BFF;
  --mint:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --text:#EDF2FF;
  --muted:#B7C3DD;
  --weak:#8593B2;
  --line:rgba(198,214,255,0.14);
  --line-strong:rgba(143,227,212,0.35);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,0.32);
  --shadow-glow:0 0 0 1px rgba(143,227,212,0.18),0 12px 40px rgba(110,139,255,0.22);
  --serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(820px 520px at 12% -6%, rgba(110,139,255,.16), transparent 68%),
    radial-gradient(760px 500px at 92% 8%, rgba(217,138,154,.10), transparent 70%),
    radial-gradient(900px 700px at 60% 108%, rgba(143,227,212,.07), transparent 72%);
}
img{max-width:100%;display:block;}
a{color:var(--mint);text-decoration:none;}
a:hover{color:#AFF3E8;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.02em;color:var(--text);line-height:1.28;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(143,227,212,.28);color:#fff;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,20,.74);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-nav{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;flex-direction:column;line-height:1.05;margin-right:auto;padding:4px 0;}
.brand-top{font-family:var(--serif);font-size:1.1rem;font-weight:600;letter-spacing:.16em;color:var(--text);}
.brand-bottom{font-size:.7rem;letter-spacing:.3em;color:var(--mint);margin-top:2px;}
.brand:hover .brand-top{color:#fff;}
.brand:hover .brand-bottom{color:#AFF3E8;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-list a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:999px;font-size:.95rem;color:var(--muted);
  border:1px solid transparent;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav-list a.is-active{
  color:#fff;background:rgba(143,227,212,.10);
  border-color:var(--line-strong);
  box-shadow:0 0 18px rgba(143,227,212,.16);
}
.nav-list a.is-active::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--mint);
  margin-right:8px;box-shadow:0 0 8px rgba(143,227,212,.9);
}
.nav-cta{
  align-items:center;justify-content:center;min-height:44px;padding:0 20px;
  border-radius:999px;font-size:.92rem;font-weight:600;color:#061020;
  background:linear-gradient(120deg,var(--mint),var(--primary));
  box-shadow:0 10px 26px rgba(110,139,255,.28);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#061020;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 32px rgba(110,139,255,.36);}
.nav-cta:active{transform:translateY(0) scale(.99);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.04);cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text);border-radius:2px;box-shadow:0 0 6px rgba(143,227,212,.5);}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(143,227,212,.08);}

/* ---------- Offcanvas ---------- */
.offcanvas.site-drawer{background:var(--bg-2);color:var(--text);border-right:1px solid var(--line);width:min(88vw,340px);}
.site-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.site-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75;}
.site-drawer .btn-close:hover{opacity:1;}
.site-drawer-body{padding:8px 20px 28px;display:flex;flex-direction:column;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;min-height:48px;
  color:var(--muted);font-size:1rem;border-bottom:1px solid rgba(198,214,255,.08);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover{color:var(--mint);padding-left:6px;}
.drawer-link.is-active{color:#fff;}
.drawer-link.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px rgba(143,227,212,.9);}
.drawer-cta{
  margin-top:22px;display:flex;align-items:center;justify-content:center;min-height:48px;
  border-radius:14px;font-weight:600;color:#061020;
  background:linear-gradient(120deg,var(--mint),var(--primary));
  box-shadow:0 12px 28px rgba(110,139,255,.3);
}
.drawer-cta:hover{color:#061020;filter:brightness(1.06);}

/* ---------- Buttons ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:14px;font-size:.98rem;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-main{
  color:#061020;
  background:linear-gradient(120deg,var(--mint),var(--primary) 88%);
  box-shadow:0 12px 32px rgba(110,139,255,.3),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-main:hover{color:#061020;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 40px rgba(110,139,255,.4),inset 0 1px 0 rgba(255,255,255,.4);}
.btn-main:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.03);border-color:rgba(198,214,255,.22);
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.08);border-color:var(--line-strong);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.99);}

/* ---------- Shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;letter-spacing:.22em;color:var(--mint);
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(143,227,212,.28);background:rgba(143,227,212,.07);
  margin-bottom:18px;
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.76rem;letter-spacing:.08em;color:var(--mint);
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(143,227,212,.26);background:rgba(143,227,212,.07);
}
.tag-rose{color:#F0C3CD;border-color:rgba(217,138,154,.32);background:rgba(217,138,154,.1);}
.tag-mute{color:var(--weak);border-color:var(--line);background:rgba(255,255,255,.03);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.78rem;color:var(--weak);margin-bottom:22px;}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--mint);}
.crumb .sep{color:rgba(133,147,178,.6);}
.crumb .now{color:var(--muted);}
.section{padding:84px 0;position:relative;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.75rem,2.8vw,2.5rem);}
.section-head p{margin-top:14px;color:var(--muted);font-size:1rem;}
.glass{
  background:linear-gradient(160deg,rgba(17,26,54,.86),rgba(10,16,36,.82));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:56px 0 76px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;left:-8%;top:-30%;width:70%;height:640px;
  background:radial-gradient(closest-side,rgba(110,139,255,.20),transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-100px;top:40px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(143,227,212,.10);
  box-shadow:inset 0 0 90px rgba(143,227,212,.05);
  pointer-events:none;
}
.hero h1{font-size:clamp(2.25rem,4.2vw,3.4rem);letter-spacing:.02em;margin-bottom:20px;}
.hero h1 .hl{color:var(--mint);}
.hero-sub{max-width:560px;color:var(--muted);font-size:1.06rem;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:.88rem;color:var(--weak);}
.hero-facts li{display:flex;align-items:center;gap:8px;}
.hero-facts li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mint);opacity:.8;}
.hero-visual{display:flex;justify-content:center;}
.phone-frame{
  position:relative;width:100%;max-width:318px;aspect-ratio:9/16;
  border-radius:26px;overflow:hidden;
  border:1px solid rgba(143,227,212,.24);
  background:rgba(10,16,36,.9);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.phone-frame img{width:100%;height:100%;object-fit:cover;object-position:center 30%;opacity:.9;}
.phone-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.05) 30%,rgba(6,10,20,.78) 88%);
}
.phone-bar{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:14px;
  background:rgba(17,26,54,.72);border:1px solid rgba(198,214,255,.16);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.phone-index{font-family:var(--serif);font-size:1.05rem;color:var(--mint);font-variant-numeric:tabular-nums;}
.phone-title{font-size:.85rem;color:var(--muted);margin-right:auto;}
.phone-dots{display:flex;gap:5px;}
.phone-dots i{display:block;width:5px;height:5px;border-radius:50%;background:rgba(198,214,255,.3);}
.phone-dots i.on{background:var(--mint);box-shadow:0 0 8px rgba(143,227,212,.9);}
.phone-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:.72rem;letter-spacing:.14em;color:#0B1526;
  padding:5px 12px;border-radius:999px;background:rgba(143,227,212,.9);
}

/* ---------- Steps ---------- */
.steps-wrap{padding-top:20px;}
.step-list{position:relative;padding-left:0;}
.step-item{
  position:relative;display:flex;gap:20px;padding:26px 24px;margin-bottom:16px;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(17,26,54,.78),rgba(10,16,36,.7));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.step-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-glow);}
.step-no{
  flex:0 0 auto;width:52px;height:52px;display:flex;align-items:center;justify-content:center;
  border-radius:14px;font-family:var(--serif);font-size:1.16rem;color:var(--mint);
  border:1px solid rgba(143,227,212,.28);background:rgba(143,227,212,.06);
  font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:1.2rem;margin-bottom:10px;}
.step-body p{color:var(--muted);font-size:.96rem;margin-bottom:14px;}
.step-note{display:flex;flex-wrap:wrap;gap:8px;}
.step-connector{
  position:absolute;left:50px;bottom:-16px;width:1px;height:16px;
  background:linear-gradient(180deg,rgba(143,227,212,.5),rgba(143,227,212,0));
}
.step-item:last-child .step-connector{display:none;}

/* ---------- Side column ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{padding:24px;}
.side-card h3{font-size:1.06rem;margin-bottom:6px;}
.side-card .side-sub{font-size:.82rem;color:var(--weak);margin-bottom:16px;}
.safe-list li{display:flex;gap:10px;font-size:.92rem;color:var(--muted);padding:11px 0;border-bottom:1px dashed rgba(198,214,255,.12);}
.safe-list li:last-child{border-bottom:0;}
.safe-list .dot{flex:0 0 auto;margin-top:9px;width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 8px rgba(143,227,212,.7);}
.jump-list li + li{margin-top:2px;}
.jump-link{
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
  font-size:.93rem;color:var(--muted);border-bottom:1px solid rgba(198,214,255,.09);
  transition:color .2s ease,padding-left .2s ease;
}
.jump-link:hover{color:var(--mint);padding-left:6px;}
.jump-link span.arrow{color:var(--weak);font-size:.8rem;}

/* ---------- Prep block ---------- */
.asym{display:grid;grid-template-columns:1.42fr 1fr;gap:24px;}
.prep-card{padding:30px;}
.prep-card h3{font-size:1.3rem;margin-bottom:8px;}
.prep-card .prep-sub{color:var(--weak);font-size:.88rem;margin-bottom:20px;}
.check-list li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(198,214,255,.09);
  font-size:.96rem;color:var(--muted);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list .mark{
  flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(143,227,212,.32);background:rgba(143,227,212,.1);
  color:var(--mint);font-size:.72rem;
}
.env-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.env-card .env-media{position:relative;height:190px;overflow:hidden;}
.env-card .env-media img{width:100%;height:100%;object-fit:cover;object-position:center 42%;transition:transform .5s ease;}
.env-card:hover .env-media img{transform:scale(1.04);}
.env-card .env-body{padding:24px;}
.env-card h3{font-size:1.12rem;margin-bottom:10px;}
.env-card p{color:var(--muted);font-size:.92rem;margin-bottom:12px;}

/* ---------- Situation ---------- */
.sit-card{padding:32px;margin-top:24px;}
.sit-card h3{font-size:1.28rem;margin-bottom:6px;}
.sit-card .sit-sub{color:var(--weak);font-size:.88rem;margin-bottom:22px;}
.sit-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.sit-item{
  padding:20px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(10,16,36,.6);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.sit-item:hover{border-color:var(--line-strong);transform:translateY(-3px);background:rgba(17,26,54,.8);}
.sit-item .sit-q{display:flex;align-items:center;gap:8px;font-size:.95rem;color:var(--text);margin-bottom:8px;font-weight:600;}
.sit-item .sit-q i{color:var(--rose);}
.sit-item p{font-size:.9rem;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  margin-bottom:14px;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:linear-gradient(160deg,rgba(17,26,54,.82),rgba(10,16,36,.74));
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq .accordion-item:hover{border-color:rgba(143,227,212,.26);}
.faq .accordion-button{
  background:transparent;color:var(--text);
  font-family:var(--serif);font-size:1.05rem;font-weight:600;
  padding:20px 22px;border-radius:0;box-shadow:none;
  border-left:3px solid transparent;
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.faq .accordion-button:not(.collapsed){
  background:rgba(110,139,255,.08);color:#fff;
  border-left-color:var(--mint);
  box-shadow:inset 0 -1px 0 rgba(198,214,255,.1);
}
.faq .accordion-button:focus{box-shadow:none;outline:none;}
.faq .accordion-button:focus-visible{outline:2px solid var(--mint);outline-offset:-4px;}
.faq .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-family:var(--sans);font-size:1.35rem;line-height:1;color:var(--mint);
  transform:none;transition:transform .25s ease,color .25s ease;
  display:flex;align-items:center;justify-content:center;margin-left:16px;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";color:#AFF3E8;}
.faq .accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:.96rem;line-height:1.9;}
.faq-aside{padding:26px;display:flex;flex-direction:column;gap:14px;}
.faq-aside h3{font-size:1.08rem;}
.faq-aside p{font-size:.9rem;color:var(--muted);margin:0;}
.faq-aside .mini{
  display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--weak);
  padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.02);
}
.faq-aside .mini i{color:var(--mint);margin-top:3px;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  margin:10px 0 0;padding:44px 40px;border-radius:var(--r-lg);
  border:1px solid rgba(143,227,212,.22);
  background:linear-gradient(140deg,rgba(17,26,54,.92),rgba(10,16,36,.9));
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;left:-60px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(143,227,212,.16),transparent 72%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:.95rem;margin:0;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:88px;background:#04070F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(143,227,212,.35),rgba(110,139,255,.22),rgba(217,138,154,.3)) 1;
  padding:64px 0 26px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;}
.footer-brand p{margin-top:18px;color:var(--weak);font-size:.88rem;line-height:1.85;max-width:320px;}
.footer-brand .brand{margin-right:0;}
.footer-col h4{font-family:var(--sans);font-size:.86rem;letter-spacing:.14em;color:var(--muted);margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:2px;}
.footer-col ul a{
  display:inline-flex;align-items:center;min-height:34px;font-size:.88rem;color:var(--weak);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col ul a:hover{color:var(--mint);padding-left:4px;}
.footer-legal{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(198,214,255,.09);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:.76rem;color:rgba(133,147,178,.85);
}

/* ---------- Mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:none;align-items:center;gap:12px;padding:10px 16px;
  background:rgba(6,10,20,.92);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(120%);transition:transform .3s ease;
}
.mobile-bar.show{transform:translateY(0);}
.mobile-bar .btn-main{flex:1;min-height:44px;padding:0 16px;font-size:.92rem;}
.to-top{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--muted);cursor:pointer;transition:color .2s ease,border-color .2s ease;
}
.to-top:hover{color:var(--mint);border-color:var(--line-strong);}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .hero{padding:44px 0 62px;}
  .phone-frame{max-width:286px;}
  .asym{grid-template-columns:1.3fr 1fr;}
  .footer-grid{grid-template-columns:3fr 2fr 3fr;gap:30px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .site-nav{height:60px;gap:12px;}
  .nav-list,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:56px 0;}
  .hero{padding:32px 0 48px;}
  .hero-visual{margin-top:34px;}
  .phone-frame{max-width:300px;}
  .side-col{position:static;margin-top:24px;}
  .asym{grid-template-columns:1fr;}
  .sit-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;}
  .cta-actions{width:100%;}
  .mobile-bar{display:flex;}
  .site-footer{margin-top:64px;padding-bottom:86px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .site-container{padding:0 16px;}
  .hero h1{font-size:clamp(1.85rem,6.4vw,2.15rem);}
  .hero-sub{font-size:1rem;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .step-item{padding:20px 18px;gap:14px;}
  .step-no{width:44px;height:44px;font-size:1rem;border-radius:12px;}
  .step-connector{left:40px;}
  .prep-card,.sit-card,.side-card{padding:22px;}
  .cta-band h2{font-size:1.4rem;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-legal{flex-direction:column;align-items:flex-start;font-size:.72rem;}
}
@media (max-width:575.98px){
  .hero::after{display:none;}
  .phone-frame{max-width:320px;}
  .hero-facts{flex-direction:column;gap:8px;}
  .faq .accordion-button{font-size:.98rem;padding:16px 16px;}
  .faq .accordion-body{padding:2px 16px 18px;font-size:.93rem;}
  .btn-main,.btn-ghost{width:100%;}
  .footer-brand .brand-top{font-size:1rem;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
    --ink:#060A14;
    --ink-2:#0A1024;
    --panel:#111A36;
    --primary:#6E8BFF;
    --mint:#8FE3D4;
    --rose:#D98A9A;
    --rose-deep:#C9778B;
    --text:#EDF2FF;
    --text-2:#B7C3DD;
    --text-3:#8593B2;
    --line:rgba(198,214,255,.14);
    --line-2:rgba(143,227,212,.35);
    --r-lg:24px;
    --r-md:18px;
    --r-sm:13px;
    --shadow:0 18px 50px rgba(0,0,0,.32);
    --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
    --serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",serif;
    --sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--ink);
    color:var(--text);
    font-family:var(--sans);
    font-size:16.5px;
    line-height:1.75;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
      radial-gradient(760px 480px at 12% -6%,rgba(143,227,212,.10),transparent 62%),
      radial-gradient(680px 520px at 94% 6%,rgba(217,138,154,.08),transparent 60%),
      radial-gradient(900px 640px at 58% 104%,rgba(110,139,255,.09),transparent 66%);
  }
  h1,h2,h3,h4{
    font-family:var(--serif);
    font-weight:600;
    letter-spacing:.02em;
    color:#fff;
    margin:0;
  }
  p{margin:0 0 1em;}
  p:last-child{margin-bottom:0;}
  a{color:var(--mint);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
  a:hover{color:#B9F3E8;}
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible,
  .accordion-button:focus-visible{
    outline:2px solid var(--mint);
    outline-offset:3px;
  }
  img{max-width:100%;display:block;}
  ul{padding-left:1.1em;}
  .site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:1030;
    background:rgba(6,10,20,.78);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .site-nav{
    display:flex;
    align-items:center;
    gap:18px;
    height:72px;
  }
  .brand{
    display:flex;
    flex-direction:column;
    line-height:1.06;
    text-decoration:none;
    flex-shrink:0;
    padding:4px 0;
  }
  .brand-top{
    font-family:var(--serif);
    font-size:18px;
    letter-spacing:.16em;
    color:#fff;
  }
  .brand-bottom{
    font-size:10.5px;
    letter-spacing:.26em;
    color:var(--mint);
    margin-top:3px;
  }
  .nav-list{
    display:flex;
    align-items:center;
    gap:4px;
    list-style:none;
    margin:0 0 0 auto;
    padding:0;
  }
  .nav-list a{
    position:relative;
    display:inline-flex;
    align-items:center;
    padding:9px 14px;
    border-radius:999px;
    font-size:14.5px;
    color:var(--text-2);
    border:1px solid transparent;
    transition:color .2s ease,background .2s ease,border-color .2s ease;
  }
  .nav-list a:hover{color:#fff;background:rgba(255,255,255,.06);}
  .nav-list a.is-active{
    color:#fff;
    background:rgba(143,227,212,.10);
    border-color:rgba(143,227,212,.34);
    box-shadow:0 0 0 1px rgba(143,227,212,.10),0 8px 24px rgba(110,139,255,.18);
  }
  .nav-list a.is-active::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:-7px;
    width:4px;
    height:4px;
    margin-left:-2px;
    border-radius:50%;
    background:var(--mint);
    box-shadow:0 0 10px rgba(143,227,212,.9);
  }
  .nav-cta{
    align-items:center;
    justify-content:center;
    padding:10px 20px;
    border-radius:var(--r-sm);
    font-size:14px;
    font-weight:600;
    color:#04121A;
    background:linear-gradient(135deg,var(--mint),#8FC9FF);
    border:1px solid rgba(143,227,212,.55);
    box-shadow:0 10px 26px rgba(143,227,212,.18);
    transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
    white-space:nowrap;
  }
  .nav-cta:hover{
    color:#04121A;
    transform:translateY(-2px);
    filter:brightness(1.06);
    box-shadow:0 14px 32px rgba(143,227,212,.28);
  }
  .nav-cta:active{transform:translateY(1px);}
  .nav-toggle{
    margin-left:10px;
    width:44px;
    height:44px;
    display:none;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    border-radius:12px;
    cursor:pointer;
    transition:border-color .2s ease,background .2s ease;
  }
  .nav-toggle span{
    display:block;
    width:18px;
    height:1.6px;
    background:var(--mint);
    border-radius:2px;
    box-shadow:0 0 8px rgba(143,227,212,.55);
  }
  .nav-toggle:hover{border-color:var(--line-2);background:rgba(255,255,255,.08);}

  /* ---------- Offcanvas ---------- */
  .drawer{
    background:var(--ink-2)!important;
    color:var(--text);
    border-right:1px solid var(--line);
    width:min(86vw,340px);
  }
  .drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
  .drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
  .drawer .offcanvas-body{padding:18px 20px 28px;display:flex;flex-direction:column;}
  .drawer-links{list-style:none;margin:0;padding:0;}
  .drawer-links li{border-bottom:1px solid rgba(198,214,255,.08);}
  .drawer-links a{
    display:flex;
    align-items:center;
    min-height:48px;
    color:var(--text-2);
    font-size:15.5px;
  }
  .drawer-links a:hover{color:#fff;}
  .drawer-links a.is-active{color:var(--mint);font-weight:600;}
  .drawer-cta{
    margin-top:24px;
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    border-radius:var(--r-sm);
    font-weight:600;
    color:#04121A;
    background:linear-gradient(135deg,var(--mint),#8FC9FF);
    border:1px solid rgba(143,227,212,.5);
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .hero-bg{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center 38%;
    filter:saturate(.85);
    opacity:.5;
  }
  .hero-bg::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(100deg,rgba(6,10,20,.96) 6%,rgba(6,10,20,.86) 42%,rgba(6,10,20,.52) 74%,rgba(6,10,20,.78) 100%),
      radial-gradient(600px 380px at 84% 16%,rgba(217,138,154,.20),transparent 66%);
  }
  .hero-inner{
    position:relative;
    z-index:2;
    padding:88px 0 76px;
    max-width:840px;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:9px;
    padding:6px 15px;
    border-radius:999px;
    font-size:12.5px;
    letter-spacing:.14em;
    color:var(--mint);
    background:rgba(143,227,212,.09);
    border:1px solid rgba(143,227,212,.28);
    margin-bottom:22px;
  }
  .eyebrow::before{
    content:"";
    width:5px;height:5px;border-radius:50%;
    background:var(--mint);
    box-shadow:0 0 10px rgba(143,227,212,.85);
  }
  .hero h1{
    font-size:clamp(2.1rem,4vw,3.35rem);
    line-height:1.28;
    margin-bottom:18px;
  }
  .hero-sub{
    font-size:17px;
    color:var(--text-2);
    max-width:660px;
    margin-bottom:30px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
  .btn-brand{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    min-height:48px;
    padding:13px 28px;
    border-radius:13px;
    font-size:15px;
    font-weight:600;
    color:#04121A;
    background:linear-gradient(135deg,var(--mint),#8FC9FF);
    border:1px solid rgba(143,227,212,.55);
    box-shadow:0 12px 30px rgba(143,227,212,.20);
    transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  }
  .btn-brand:hover{
    color:#04121A;
    transform:translateY(-2px);
    filter:brightness(1.06);
    box-shadow:0 16px 38px rgba(143,227,212,.30);
  }
  .btn-brand:active{transform:translateY(1px) scale(.995);}
  .btn-ghost{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    min-height:48px;
    padding:13px 26px;
    border-radius:13px;
    font-size:15px;
    font-weight:600;
    color:var(--text);
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
  }
  .btn-ghost:hover{
    color:#fff;
    background:rgba(255,255,255,.09);
    border-color:var(--line-2);
    transform:translateY(-2px);
  }
  .btn-ghost:active{transform:translateY(1px);}

  .hero-metrics{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:14px;
    max-width:760px;
  }
  .metric{
    padding:16px 18px;
    border-radius:var(--r-md);
    background:linear-gradient(160deg,rgba(17,26,54,.86),rgba(10,16,36,.72));
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  .metric b{
    display:block;
    font-family:var(--serif);
    font-size:24px;
    line-height:1.2;
    color:#fff;
    font-variant-numeric:tabular-nums;
  }
  .metric span{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;}

  /* ---------- Sections ---------- */
  main{position:relative;z-index:1;}
  .section{padding:84px 0;}
  .section-tight{padding:64px 0;}
  .section-head{max-width:720px;margin-bottom:44px;}
  .section-head .kicker{
    display:inline-block;
    font-size:12.5px;
    letter-spacing:.2em;
    color:var(--rose);
    margin-bottom:12px;
  }
  .section-head h2{
    font-size:clamp(1.6rem,2.6vw,2.25rem);
    line-height:1.34;
    margin-bottom:14px;
  }
  .section-head p{color:var(--text-2);font-size:16px;}

  .divider{
    height:1px;
    border:0;
    background:linear-gradient(90deg,transparent,rgba(198,214,255,.22),transparent);
    margin:0;
  }

  /* ---------- Opening narrative ---------- */
  .open-grid{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:40px;
    align-items:start;
  }
  .open-text p{color:var(--text-2);font-size:16.5px;line-height:1.9;}
  .open-text p strong{color:#fff;font-weight:600;}
  .quote-card{
    position:relative;
    padding:28px 26px;
    border-radius:var(--r-md);
    background:linear-gradient(160deg,rgba(17,26,54,.92),rgba(10,16,36,.82));
    border:1px solid var(--line);
    border-left:3px solid rgba(217,138,154,.7);
    box-shadow:var(--shadow);
  }
  .quote-card blockquote{
    margin:0 0 16px;
    font-family:var(--serif);
    font-size:19px;
    line-height:1.8;
    color:#fff;
  }
  .quote-card cite{
    font-style:normal;
    font-size:13px;
    color:var(--text-3);
    letter-spacing:.08em;
  }

  /* ---------- Timeline ---------- */
  .timeline{position:relative;padding-top:10px;}
  .timeline::before{
    content:"";
    position:absolute;
    left:50%;
    top:0;
    bottom:36px;
    width:1px;
    transform:translateX(-.5px);
    background:linear-gradient(180deg,rgba(143,227,212,.5),rgba(110,139,255,.28),rgba(217,138,154,.32),rgba(217,138,154,0));
  }
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
    padding-bottom:40px;
    align-items:start;
  }
  .tl-item::before{
    content:"";
    position:absolute;
    left:50%;
    top:16px;
    width:12px;
    height:12px;
    margin-left:-6px;
    border-radius:50%;
    background:var(--ink-2);
    border:1px solid var(--mint);
    box-shadow:0 0 0 4px rgba(143,227,212,.10),0 0 18px rgba(143,227,212,.5);
  }
  .tl-card{
    grid-column:1;
    padding:24px 26px;
    border-radius:var(--r-md);
    background:linear-gradient(160deg,rgba(17,26,54,.9),rgba(10,16,36,.78));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .tl-card:hover{
    transform:translateY(-4px);
    border-color:var(--line-2);
    box-shadow:var(--glow);
  }
  .tl-item:nth-of-type(even) .tl-card{grid-column:2;}
  .tl-num{
    display:inline-block;
    font-size:12px;
    letter-spacing:.2em;
    color:var(--mint);
    padding:3px 10px;
    border-radius:999px;
    border:1px solid rgba(143,227,212,.28);
    background:rgba(143,227,212,.08);
    margin-bottom:13px;
    font-variant-numeric:tabular-nums;
  }
  .tl-card h3{font-size:1.3rem;margin-bottom:10px;}
  .tl-card p{color:var(--text-2);font-size:15.8px;line-height:1.85;margin:0;}
  .tl-mark{
    grid-column:2;
    font-family:var(--serif);
    font-size:62px;
    line-height:1;
    letter-spacing:.05em;
    color:rgba(143,227,212,.10);
    padding-top:6px;
    font-variant-numeric:tabular-nums;
  }
  .tl-item:nth-of-type(even) .tl-mark{
    grid-column:1;
    justify-self:end;
    text-align:right;
  }

  /* ---------- Thread cards ---------- */
  .thread-grid{
    display:grid;
    grid-template-columns:1.35fr 1fr;
    grid-auto-rows:minmax(0,1fr);
    gap:20px;
  }
  .thread-card{
    position:relative;
    display:flex;
    flex-direction:column;
    justify-content:flex-end;
    min-height:220px;
    padding:24px 26px;
    border-radius:var(--r-lg);
    overflow:hidden;
    background:linear-gradient(160deg,rgba(17,26,54,.92),rgba(10,16,36,.8));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .thread-card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--glow);}
  .thread-card.is-lead{grid-row:span 2;justify-content:flex-end;min-height:460px;}
  .thread-card .tc-img{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    opacity:.42;
    transition:transform .5s ease,opacity .3s ease;
  }
  .thread-card:hover .tc-img{transform:scale(1.04);opacity:.52;}
  .thread-card .tc-veil{
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(6,10,20,.30) 0%,rgba(6,10,20,.86) 62%,rgba(6,10,20,.96) 100%);
  }
  .thread-card .tc-body{position:relative;z-index:2;}
  .thread-card h3{font-size:1.22rem;margin-bottom:9px;}
  .thread-card p{color:var(--text-2);font-size:15px;line-height:1.8;margin:0;}
  .tag{
    display:inline-flex;
    align-items:center;
    padding:4px 11px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.08em;
    color:var(--rose);
    background:rgba(217,138,154,.10);
    border:1px solid rgba(217,138,154,.28);
    margin-bottom:12px;
  }
  .tag-mint{
    color:var(--mint);
    background:rgba(143,227,212,.09);
    border-color:rgba(143,227,212,.28);
  }

  /* ---------- Media + quote ---------- */
  .media-frame{
    position:relative;
    margin:0;
    height:100%;
    min-height:340px;
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .media-frame img{width:100%;height:100%;min-height:340px;object-fit:cover;transition:transform .6s ease;}
  .media-frame:hover img{transform:scale(1.03);}
  .media-frame figcaption{
    position:absolute;
    left:0;right:0;bottom:0;
    padding:16px 20px;
    font-size:13px;
    color:var(--text-2);
    background:linear-gradient(180deg,transparent,rgba(6,10,20,.9));
  }
  .note-card{
    padding:28px 26px;
    border-radius:var(--r-lg);
    background:linear-gradient(160deg,rgba(17,26,54,.9),rgba(10,16,36,.8));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    height:100%;
    display:flex;
    flex-direction:column;
    justify-content:center;
  }
  .note-card h3{font-size:1.2rem;margin-bottom:14px;}
  .note-list{list-style:none;padding:0;margin:0;}
  .note-list li{
    position:relative;
    padding-left:20px;
    margin-bottom:12px;
    color:var(--text-2);
    font-size:15.4px;
    line-height:1.8;
  }
  .note-list li:last-child{margin-bottom:0;}
  .note-list li::before{
    content:"";
    position:absolute;
    left:0;top:.62em;
    width:7px;height:7px;
    border-radius:50%;
    border:1px solid var(--mint);
    background:transparent;
  }

  /* ---------- FAQ ---------- */
  .faq-grid{
    display:grid;
    grid-template-columns:1.55fr 1fr;
    gap:36px;
    align-items:start;
  }
  .accordion-item{
    background:linear-gradient(160deg,rgba(17,26,54,.88),rgba(10,16,36,.76));
    border:1px solid var(--line);
    border-radius:var(--r-md)!important;
    margin-bottom:12px;
    overflow:hidden;
    box-shadow:0 12px 34px rgba(0,0,0,.22);
  }
  .accordion-item:last-child{margin-bottom:0;}
  .accordion-button{
    background:transparent;
    color:#fff;
    font-family:var(--sans);
    font-size:16px;
    font-weight:600;
    padding:19px 22px;
    box-shadow:none;
    border-radius:var(--r-md)!important;
    line-height:1.6;
  }
  .accordion-button:not(.collapsed){
    color:#fff;
    background:rgba(143,227,212,.07);
    box-shadow:inset 3px 0 0 var(--mint);
  }
  .accordion-button:focus{box-shadow:inset 3px 0 0 var(--mint);}
  .accordion-button::after{
    background-image:none;
    width:11px;
    height:11px;
    border-right:2px solid var(--mint);
    border-bottom:2px solid var(--mint);
    transform:rotate(45deg) translateY(-2px);
    transition:transform .26s ease;
    margin-left:auto;
    flex-shrink:0;
  }
  .accordion-button:not(.collapsed)::after{transform:rotate(-135deg) translateY(-2px);}
  .accordion-body{
    color:var(--text-2);
    font-size:15.4px;
    line-height:1.86;
    padding:4px 22px 22px;
    border-top:1px solid rgba(198,214,255,.08);
  }
  .help-card{
    padding:26px 24px;
    border-radius:var(--r-lg);
    background:linear-gradient(160deg,rgba(17,26,54,.92),rgba(10,16,36,.8));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .help-card + .help-card{margin-top:20px;}
  .help-card h3{font-size:1.12rem;margin-bottom:10px;}
  .help-card p{color:var(--text-2);font-size:14.6px;line-height:1.82;}
  .help-links{list-style:none;padding:0;margin:16px 0 0;}
  .help-links li + li{margin-top:10px;}
  .help-links a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:12px 16px;
    min-height:44px;
    border-radius:12px;
    font-size:14.6px;
    color:var(--text);
    background:rgba(255,255,255,.035);
    border:1px solid var(--line);
    transition:border-color .2s ease,background .2s ease,transform .2s ease;
  }
  .help-links a:hover{
    background:rgba(255,255,255,.075);
    border-color:var(--line-2);
    color:#fff;
    transform:translateX(2px);
  }
  .help-links a span.arrow{color:var(--mint);}

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    padding:40px 44px;
    border-radius:var(--r-lg);
    background:
      radial-gradient(560px 260px at 12% 0%,rgba(143,227,212,.14),transparent 68%),
      radial-gradient(460px 240px at 92% 100%,rgba(217,138,154,.12),transparent 70%),
      linear-gradient(160deg,rgba(17,26,54,.94),rgba(8,13,26,.9));
    border:1px solid rgba(198,214,255,.18);
    box-shadow:var(--shadow);
  }
  .cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:10px;}
  .cta-band p{color:var(--text-2);font-size:15.4px;margin:0;max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* ---------- Footer ---------- */
  .site-footer{
    position:relative;
    margin-top:84px;
    background:#04070F;
    z-index:1;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    inset:0 0 auto 0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(143,227,212,.42),rgba(217,138,154,.34),transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:4fr 2fr 3fr 3fr;
    gap:36px;
    padding:56px 0 36px;
  }
  .footer-brand p{
    margin-top:16px;
    color:var(--text-3);
    font-size:14px;
    line-height:1.82;
    max-width:340px;
  }
  .footer-col h4{
    font-family:var(--sans);
    font-size:13px;
    font-weight:700;
    letter-spacing:.14em;
    color:var(--text-3);
    margin-bottom:16px;
  }
  .footer-col ul{list-style:none;padding:0;margin:0;}
  .footer-col li + li{margin-top:9px;}
  .footer-col a{
    font-size:14px;
    color:var(--text-2);
    line-height:1.7;
  }
  .footer-col a:hover{color:var(--mint);}
  .footer-legal{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px 24px;
    padding:18px 0 26px;
    border-top:1px solid rgba(198,214,255,.08);
    font-size:12px;
    color:var(--text-3);
    font-variant-numeric:tabular-nums;
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1199.98px){
    .hero-inner{padding:74px 0 66px;}
    .tl-item{gap:44px;}
    .footer-grid{grid-template-columns:3fr 2fr 2.5fr 2.5fr;gap:28px;}
  }
  @media (max-width:991.98px){
    .nav-list{display:none;}
    .nav-toggle{display:flex;}
    .site-nav{height:64px;gap:12px;}
    .nav-cta{display:none!important;}
    .hero-inner{padding:60px 0 56px;}
    .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
    .section{padding:60px 0;}
    .section-tight{padding:48px 0;}
    .open-grid{grid-template-columns:1fr;gap:26px;}
    .timeline::before{left:9px;}
    .tl-item{grid-template-columns:1fr;gap:0;padding-left:34px;padding-bottom:26px;}
    .tl-item::before{left:0;margin-left:3px;top:22px;}
    .tl-item .tl-card,
    .tl-item:nth-of-type(even) .tl-card{grid-column:1;}
    .tl-mark{display:none;}
    .thread-grid{grid-template-columns:1fr;grid-auto-rows:auto;}
    .thread-card.is-lead{grid-row:auto;min-height:300px;}
    .faq-grid{grid-template-columns:1fr;gap:26px;}
    .media-frame,.media-frame img{min-height:280px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;gap:22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn-brand,.cta-actions .btn-ghost{flex:1 1 100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 28px;}
    .footer-brand{grid-column:1/-1;}
    .footer-brand p{max-width:none;}
  }
  @media (max-width:767.98px){
    body{font-size:16px;}
    .hero h1{font-size:clamp(1.85rem,7.2vw,2.2rem);}
    .hero-sub{font-size:15.6px;}
    .hero-actions{gap:10px;}
    .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
    .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
    .metric{padding:14px 15px;}
    .metric b{font-size:20px;}
    .section-head{margin-bottom:32px;}
    .tl-card{padding:20px 20px;}
    .thread-card{padding:20px 20px;}
    .quote-card{padding:22px 20px;}
    .quote-card blockquote{font-size:17px;}
    .footer-legal{flex-direction:column;gap:8px;}
  }
  @media (max-width:575.98px){
    .site-container{padding:0 16px;}
    .accordion-button{padding:16px 18px;font-size:15.2px;}
    .accordion-body{padding:4px 18px 18px;}
    .help-card{padding:22px 20px;}
    .cta-band{padding:26px 20px;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .timeline::before{background:linear-gradient(180deg,rgba(143,227,212,.45),rgba(110,139,255,.24),transparent);}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms!important;
      animation-iteration-count:1!important;
      transition-duration:.001ms!important;
      scroll-behavior:auto!important;
    }
  }

/* roulang page: category3 */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --primary:#6E8BFF;
  --mint:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --text:#EDF2FF;
  --muted:#B7C3DD;
  --faint:#8593B2;
  --line:rgba(198,214,255,.14);
  --line-strong:rgba(143,227,212,.35);
  --radius-lg:24px;
  --radius:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
  --container:1200px;
  --serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",SimSun,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 460px at 12% 6%,rgba(143,227,212,.10),transparent 62%),
    radial-gradient(720px 520px at 92% 22%,rgba(110,139,255,.12),transparent 66%),
    radial-gradient(620px 480px at 78% 92%,rgba(217,138,154,.09),transparent 68%);
}
h1,h2,h3,h4,h5{font-family:var(--serif);font-weight:600;letter-spacing:.02em;margin:0;color:var(--text)}
p{margin:0}
a{color:var(--mint);text-decoration:none;transition:color .24s ease}
a:hover{color:#B9F3E8}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}
::selection{background:rgba(143,227,212,.28);color:#fff}

.site-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:2;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(6,10,20,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-nav{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:72px;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  text-decoration:none;
  flex:0 0 auto;
}
.brand-top{
  font-family:var(--serif);
  font-size:18px;
  letter-spacing:.16em;
  color:var(--text);
  transition:color .24s ease;
}
.brand-bottom{
  font-size:11px;
  letter-spacing:.3em;
  color:var(--mint);
  margin-top:4px;
}
.brand:hover .brand-top{color:#FFFFFF}
.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-list a{
  display:inline-flex;
  align-items:center;
  padding:10px 15px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  color:var(--muted);
  position:relative;
  transition:color .22s ease,background .22s ease;
}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-list a.is-active{
  color:#FFFFFF;
  background:rgba(143,227,212,.10);
  box-shadow:inset 0 0 0 1px var(--line-strong);
}
.nav-list a.is-active::after{
  content:"";
  position:absolute;
  right:12px;
  top:9px;
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 8px 2px rgba(143,227,212,.72);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:14.5px;
  font-weight:600;
  color:#08111F;
  background:linear-gradient(135deg,var(--mint) 0%,#9FC0FF 55%,var(--primary) 100%);
  box-shadow:0 8px 26px rgba(110,139,255,.28),inset 0 1px 0 rgba(255,255,255,.42);
  transition:transform .2s ease,box-shadow .24s ease,filter .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{color:#08111F;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(143,227,212,.34),inset 0 1px 0 rgba(255,255,255,.5)}
.nav-cta:active{transform:translateY(1px) scale(.99)}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:46px;
  height:46px;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.05);
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
  transition:border-color .22s ease,background .22s ease;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(143,227,212,.10)}
.nav-toggle span{
  display:block;
  width:19px;
  height:1.6px;
  border-radius:2px;
  background:var(--text);
  box-shadow:0 0 6px rgba(143,227,212,.6);
}

/* Offcanvas */
.offcanvas.site-drawer{
  background:var(--bg-2);
  color:var(--text);
  border-left:1px solid var(--line);
  width:min(340px,86vw);
}
.site-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:20px 22px;
}
.site-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);
  opacity:.72;
}
.site-drawer .btn-close:hover{opacity:1}
.site-drawer .offcanvas-body{padding:14px 22px 26px;display:flex;flex-direction:column;height:100%}
.drawer-list{display:flex;flex-direction:column}
.drawer-list a{
  display:flex;
  align-items:center;
  min-height:48px;
  color:var(--muted);
  font-size:15.5px;
  border-bottom:1px solid var(--line);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--mint);padding-left:6px}
.drawer-cta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  margin-top:26px;
  border-radius:var(--radius-sm);
  font-weight:600;
  color:#08111F;
  background:linear-gradient(135deg,var(--mint),var(--primary));
  box-shadow:0 10px 28px rgba(110,139,255,.3);
}
.drawer-cta:hover{color:#08111F;filter:brightness(1.06)}

/* ============ 通用板块 ============ */
.sec{padding:88px 0;position:relative}
.sec-tight{padding:68px 0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.24em;
  color:var(--mint);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:linear-gradient(90deg,var(--mint),rgba(143,227,212,0));
}
.sec-head{margin-bottom:34px;max-width:720px}
.sec-head h2{font-size:clamp(1.75rem,2.8vw,2.5rem);line-height:1.32}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head.center .eyebrow::before{display:none}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:52px 0 44px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg,rgba(6,10,20,.72) 0%,rgba(6,10,20,.92) 72%,var(--bg) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.9;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:460px;
  height:460px;
  border-radius:50%;
  border:1px solid rgba(143,227,212,.16);
  box-shadow:0 0 0 42px rgba(110,139,255,.05),0 0 0 84px rgba(217,138,154,.04);
  pointer-events:none;
  z-index:0;
}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  color:var(--faint);
  margin-bottom:26px;
  position:relative;
  z-index:2;
}
.crumb a{color:var(--faint)}
.crumb a:hover{color:var(--mint)}
.crumb span[aria-current]{color:var(--muted)}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:44px;
  align-items:end;
  position:relative;
  z-index:2;
}
.hero-copy h1{
  font-size:clamp(2.25rem,4.2vw,3.5rem);
  line-height:1.22;
  letter-spacing:.02em;
}
.hero-copy .lede{
  margin-top:18px;
  max-width:640px;
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(17,26,54,.6);
  color:var(--muted);
  font-size:12.5px;
  letter-spacing:.04em;
}
.pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 9px 2px rgba(143,227,212,.65);
}
.hero-side{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(17,26,54,.86),rgba(10,16,36,.72));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:22px;
}
.hero-side h3{
  font-size:15px;
  letter-spacing:.1em;
  color:var(--mint);
  margin-bottom:16px;
}
.hero-side dl{margin:0;display:flex;flex-direction:column;gap:14px}
.hero-side .side-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  font-size:13.5px;
}
.hero-side .side-row:last-child{border-bottom:none;padding-bottom:0}
.hero-side .side-row dt{color:var(--faint);font-weight:400}
.hero-side .side-row dd{margin:0;color:var(--text);font-variant-numeric:tabular-nums;text-align:right}

/* 筛选胶囊 */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:32px;
  position:relative;
  z-index:2;
}
.chip{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-size:13.5px;
  letter-spacing:.04em;
  transition:border-color .22s ease,color .22s ease,background .22s ease,transform .22s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:rgba(143,227,212,.10);transform:translateY(-2px)}
.chip.is-on{
  color:#08111F;
  background:linear-gradient(135deg,var(--mint),#A8C4FF);
  border-color:transparent;
  font-weight:600;
  box-shadow:0 8px 22px rgba(143,227,212,.24);
}
.chip.is-on:hover{color:#08111F;transform:translateY(-2px)}

/* ============ 图集栅格 ============ */
.atlas{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  grid-auto-rows:84px;
  gap:20px;
}
.g-card{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:0 12px 34px rgba(0,0,0,.26);
  transition:transform .32s ease,border-color .32s ease,box-shadow .32s ease;
  isolation:isolate;
}
.g-card img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
  transition:transform .7s cubic-bezier(.22,.61,.36,1);
}
.g-card::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(to top,rgba(6,10,20,.94) 0%,rgba(6,10,20,.55) 42%,rgba(6,10,20,.08) 78%);
  transition:opacity .32s ease;
}
.g-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 20px 46px rgba(0,0,0,.4),0 0 0 1px rgba(143,227,212,.2);
}
.g-card:hover img{transform:scale(1.04)}
.g-body{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:20px 22px;
}
.g-tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(143,227,212,.32);
  background:rgba(10,16,36,.62);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--mint);
  margin-bottom:12px;
}
.g-tag.rose{border-color:rgba(217,138,154,.4);color:#F0C0CA}
.g-tag.blue{border-color:rgba(110,139,255,.4);color:#BBCBFF}
.g-body h3{font-size:1.14rem;line-height:1.5;letter-spacing:.02em}
.g-text{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.75;
  color:var(--muted);
  max-width:46ch;
}
.g-card.large .g-body h3{font-size:clamp(1.25rem,2vw,1.6rem)}
.g-card.large .g-body{padding:26px 28px}
.g-a{grid-column:1/8;grid-row:1/6}
.g-b{grid-column:8/13;grid-row:1/4}
.g-c{grid-column:8/13;grid-row:4/6}
.g-d{grid-column:1/6;grid-row:6/9}
.g-e{grid-column:6/9;grid-row:6/9}
.g-f{grid-column:9/13;grid-row:6/9}
.g-e .g-text,.g-c .g-text{display:none}
.g-e .g-body h3,.g-c .g-body h3{font-size:1.02rem}

.atlas-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:34px;
}

/* 按钮 */
.btn-main,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:50px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.03em;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,filter .2s ease;
  cursor:pointer;
  border:1px solid transparent;
}
.btn-main{
  color:#08111F;
  background:linear-gradient(135deg,var(--mint) 0%,#A6C3FF 52%,var(--primary) 100%);
  box-shadow:0 12px 32px rgba(110,139,255,.3),inset 0 1px 0 rgba(255,255,255,.44);
}
.btn-main:hover{color:#08111F;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 40px rgba(143,227,212,.34),inset 0 1px 0 rgba(255,255,255,.5)}
.btn-main:active{transform:translateY(1px) scale(.995)}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.045);
  border-color:var(--line);
}
.btn-ghost:hover{color:var(--text);background:rgba(255,255,255,.1);border-color:var(--line-strong);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px) scale(.995)}

.arrow-ico{
  width:16px;height:16px;
  display:inline-block;
  position:relative;
  flex:0 0 auto;
}
.arrow-ico::before{
  content:"";
  position:absolute;
  left:1px;top:50%;
  width:13px;height:1.6px;
  background:currentColor;
  transform:translateY(-50%);
  border-radius:2px;
}
.arrow-ico::after{
  content:"";
  position:absolute;
  right:1px;top:50%;
  width:7px;height:7px;
  border-top:1.6px solid currentColor;
  border-right:1.6px solid currentColor;
  transform:translate(0,-50%) rotate(45deg);
  border-radius:1px;
}

/* ============ 专题导览 ============ */
.guide{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:48px;
  align-items:start;
}
.guide-left{
  position:sticky;
  top:104px;
  padding:26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(155deg,rgba(17,26,54,.9),rgba(10,16,36,.7));
  box-shadow:var(--shadow);
}
.guide-left h2{font-size:clamp(1.6rem,2.4vw,2.1rem);line-height:1.36}
.guide-left p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85}
.guide-left .btn-ghost{margin-top:22px;width:100%}
.guide-list{display:flex;flex-direction:column}
.guide-row{
  display:grid;
  grid-template-columns:56px 108px minmax(0,1fr);
  gap:20px;
  align-items:center;
  padding:22px 16px;
  border-bottom:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:background .26s ease,transform .26s ease;
}
.guide-row:first-child{border-top:1px solid var(--line)}
.guide-row:hover{background:rgba(143,227,212,.055);transform:translateX(4px)}
.guide-num{
  font-family:var(--serif);
  font-size:1.45rem;
  color:rgba(143,227,212,.72);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.guide-thumb{
  width:108px;height:76px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
}
.guide-thumb img{width:100%;height:100%;object-fit:cover}
.guide-body h3{font-size:1.06rem;line-height:1.55}
.guide-body p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.75}
.guide-meta{
  margin-top:9px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  color:var(--faint);
  font-variant-numeric:tabular-nums;
}
.guide-meta span{display:inline-flex;align-items:center;gap:6px}
.guide-meta span::before{
  content:"";
  width:4px;height:4px;border-radius:50%;
  background:rgba(143,227,212,.7);
}

/* ============ 读图方式 ============ */
.notes{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.note{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:22px;
  padding:24px 26px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(17,26,54,.78),rgba(10,16,36,.62));
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  position:relative;
  overflow:hidden;
  transition:border-color .26s ease,transform .26s ease;
}
.note::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--mint),rgba(110,139,255,0));
  opacity:.85;
}
.note:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.note-num{
  font-family:var(--serif);
  font-size:1.5rem;
  color:rgba(143,227,212,.8);
  font-variant-numeric:tabular-nums;
  line-height:1;
  padding-top:4px;
}
.note-body h3{font-size:1.08rem}
.note-body p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.85}
.note-body .tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.tag-sm{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:11.5px;
  color:var(--faint);
  letter-spacing:.06em;
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:44px;
  align-items:start;
}
.accordion.faq-acc .accordion-item{
  background:linear-gradient(140deg,rgba(17,26,54,.82),rgba(10,16,36,.66));
  border:1px solid var(--line);
  border-radius:16px !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.accordion.faq-acc .accordion-item:hover{border-color:rgba(198,214,255,.26)}
.accordion.faq-acc .accordion-button{
  background:transparent;
  color:var(--text);
  font-family:var(--serif);
  font-size:1.02rem;
  font-weight:600;
  letter-spacing:.02em;
  padding:20px 54px 20px 24px;
  box-shadow:none !important;
  border-radius:16px !important;
  transition:color .22s ease,background .22s ease;
}
.accordion.faq-acc .accordion-button:not(.collapsed){
  color:#FFFFFF;
  background:rgba(143,227,212,.07);
  box-shadow:inset 3px 0 0 var(--mint) !important;
}
.accordion.faq-acc .accordion-button::after{
  content:"+";
  background-image:none !important;
  width:auto;height:auto;
  font-size:22px;
  line-height:1;
  color:var(--mint);
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  transition:transform .28s ease,color .22s ease;
}
.accordion.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
  color:var(--rose);
}
.accordion.faq-acc .accordion-body{
  padding:4px 24px 22px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.9;
}
.faq-aside{
  display:flex;
  flex-direction:column;
  gap:18px;
  position:sticky;
  top:104px;
}
.aside-card{
  padding:26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(17,26,54,.9),rgba(10,16,36,.72));
  box-shadow:var(--shadow);
}
.aside-card h3{font-size:1.12rem;margin-bottom:12px}
.aside-card p{font-size:14px;color:var(--muted);line-height:1.85}
.aside-card .btn-main,.aside-card .btn-ghost{width:100%;margin-top:18px;min-height:46px;font-size:14.5px}
.aside-links{margin-top:6px;display:flex;flex-direction:column}
.aside-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:44px;
  font-size:14px;
  color:var(--muted);
  border-bottom:1px dashed rgba(198,214,255,.12);
  transition:color .2s ease,padding-left .2s ease;
}
.aside-links a:last-child{border-bottom:none}
.aside-links a:hover{color:var(--mint);padding-left:5px}

/* ============ CTA ============ */
.cta-bar{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(17,26,54,.94),rgba(10,16,36,.82));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--glow);
  padding:44px 46px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
}
.cta-bar::before{
  content:"";
  position:absolute;
  right:-90px;
  top:-120px;
  width:380px;
  height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(143,227,212,.18),transparent 68%);
  pointer-events:none;
}
.cta-bar::after{
  content:"";
  position:absolute;
  left:-70px;
  bottom:-140px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(217,138,154,.14),transparent 70%);
  pointer-events:none;
}
.cta-bar h2{font-size:clamp(1.5rem,2.4vw,2.05rem);line-height:1.36;position:relative;z-index:1}
.cta-bar p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.85;max-width:56ch;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:#04070F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(143,227,212,.42),rgba(110,139,255,.24),rgba(217,138,154,.34)) 1;
  padding-top:64px;
  position:relative;
  z-index:2;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:13.5px;color:var(--faint);line-height:1.9;max-width:34ch}
.footer-col h4{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--text);
  margin:6px 0 18px;
  font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--faint);transition:color .22s ease,padding-left .22s ease}
.footer-col a:hover{color:var(--mint);padding-left:4px}
.footer-legal{
  border-top:1px solid rgba(198,214,255,.1);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  justify-content:space-between;
  font-size:12px;
  color:var(--faint);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 300px;gap:30px}
  .guide{gap:32px}
  .atlas{grid-auto-rows:76px;gap:16px}
  .sec{padding:76px 0}
}
@media (max-width:991.98px){
  .nav-list,.nav-cta{display:none !important}
  .nav-toggle{display:flex}
  .site-nav{min-height:60px}
  .hero-grid{grid-template-columns:1fr;align-items:start;gap:28px}
  .hero-side{max-width:520px}
  .page-hero{padding:40px 0 36px}
  .atlas{grid-template-columns:1fr;grid-auto-rows:auto;gap:16px}
  .g-a,.g-b,.g-c,.g-d,.g-e,.g-f{grid-column:auto;grid-row:auto;min-height:250px}
  .g-a{min-height:320px}
  .g-e .g-text,.g-c .g-text{display:block}
  .guide{grid-template-columns:1fr;gap:26px}
  .guide-left{position:static}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta-bar{grid-template-columns:1fr;padding:34px 28px;gap:24px}
  .footer-grid{grid-template-columns:2fr 1fr;gap:34px}
  .sec{padding:64px 0}
}
@media (max-width:767.98px){
  .site-container{padding:0 16px}
  body{font-size:16px}
  .hero-copy h1{font-size:clamp(1.875rem,7vw,2.15rem)}
  .hero-copy .lede{font-size:15.5px}
  .sec{padding:52px 0}
  .sec-head{margin-bottom:26px}
  .guide-row{grid-template-columns:44px 84px minmax(0,1fr);gap:14px;padding:18px 10px}
  .guide-thumb{width:84px;height:64px}
  .note{grid-template-columns:1fr;gap:10px;padding:22px 20px}
  .note-num{font-size:1.2rem}
  .cta-bar{padding:28px 22px}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .footer-legal{flex-direction:column;gap:8px;font-size:11.5px}
  .site-footer{margin-top:64px;padding-top:48px}
  .atlas-foot .btn-main,.atlas-foot .btn-ghost{width:100%}
  .g-a,.g-b,.g-c,.g-d,.g-e,.g-f{min-height:230px}
  .g-a{min-height:280px}
}
@media (max-width:575.98px){
  .page-hero::after{display:none}
  .hero-side{padding:18px}
  .guide-thumb{display:none}
  .guide-row{grid-template-columns:36px minmax(0,1fr);gap:12px}
  .chip{min-height:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category4 */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --primary:#6E8BFF;
  --accent:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --text:#EDF2FF;
  --text-2:#B7C3DD;
  --text-3:#8593B2;
  --line:rgba(198,214,255,.14);
  --line-strong:rgba(143,227,212,.35);
  --shadow:0 18px 50px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:13px;
  --font-serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(760px 500px at 12% 4%, rgba(143,227,212,.085), transparent 62%),
    radial-gradient(820px 540px at 92% 18%, rgba(217,138,154,.07), transparent 64%),
    radial-gradient(1100px 700px at 50% 108%, rgba(110,139,255,.10), transparent 66%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.07;
  background-image:
    radial-gradient(circle at 18% 26%, #C6D6FF 1px, transparent 1.6px),
    radial-gradient(circle at 72% 46%, #8FE3D4 1px, transparent 1.6px),
    radial-gradient(circle at 42% 82%, #C6D6FF 1px, transparent 1.6px),
    radial-gradient(circle at 88% 88%, #D98A9A 1px, transparent 1.6px);
  background-size:340px 340px, 420px 420px, 520px 520px, 610px 610px;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,h5{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:.02em;
  color:var(--text);
  margin:0;
}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:2;
}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(8,13,28,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-nav{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.16;
  padding-right:16px;
  margin-right:4px;
  border-right:1px solid var(--line);
  flex-shrink:0;
}
.brand-top{
  font-family:var(--font-serif);
  font-size:17px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--text);
}
.brand-bottom{
  font-size:11px;
  letter-spacing:.3em;
  color:var(--accent);
  opacity:.9;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-list > li > a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.nav-list > li > a:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
}
.nav-list > li > a.is-active{
  color:var(--text);
  background:rgba(143,227,212,.10);
  border-color:var(--line-strong);
  box-shadow:inset 0 0 18px rgba(143,227,212,.10);
}
.nav-list > li > a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:4px;
  height:4px;
  border-radius:50%;
  transform:translateX(-50%);
  background:var(--accent);
  box-shadow:0 0 8px 2px rgba(143,227,212,.55);
}
.nav-list > li > a:focus-visible,
.nav-cta:focus-visible,
.btn-primary-x:focus-visible,
.btn-ghost-x:focus-visible,
.nav-toggle:focus-visible,
a:focus-visible,
button:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.nav-cta{
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  border-radius:12px;
  font-size:14px;
  font-weight:600;
  color:#06121A;
  background:linear-gradient(135deg,#8FE3D4 0%,#6E8BFF 100%);
  box-shadow:0 8px 26px rgba(110,139,255,.26);
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 12px 32px rgba(110,139,255,.34);
  color:#06121A;
}
.nav-cta:active{transform:translateY(1px) scale(.99);}
.nav-toggle{
  margin-left:12px;
  width:44px;
  height:44px;
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:1.6px;
  border-radius:2px;
  background:linear-gradient(90deg,#8FE3D4,#C6D6FF);
  box-shadow:0 0 6px rgba(143,227,212,.45);
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(143,227,212,.08);}

/* Offcanvas */
.offcanvas.site-drawer{
  background:var(--bg-2);
  color:var(--text);
  border-right:1px solid var(--line);
  width:min(86vw,340px);
}
.site-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.site-drawer .brand{border-right:none;padding-right:0;}
.drawer-btn-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-2);
  filter:none;
  opacity:1;
  transition:border-color .2s ease,color .2s ease;
}
.drawer-btn-close:hover{border-color:var(--line-strong);color:var(--accent);}
.drawer-list{padding:8px 0;}
.drawer-list li{border-bottom:1px solid rgba(198,214,255,.08);}
.drawer-list a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 22px;
  font-size:15px;
  color:var(--text-2);
}
.drawer-list a:hover{color:var(--accent);background:rgba(143,227,212,.06);}
.drawer-list a.is-active{color:var(--text);background:rgba(143,227,212,.10);}
.drawer-foot{padding:20px 22px 28px;}
.drawer-foot .btn-primary-x{width:100%;justify-content:center;}

/* ============ Buttons ============ */
.btn-primary-x,
.btn-ghost-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:48px;
  padding:0 26px;
  border-radius:13px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary-x{
  color:#06121A;
  background:linear-gradient(135deg,#8FE3D4 0%,#6E8BFF 100%);
  box-shadow:0 10px 28px rgba(110,139,255,.26),inset 0 1px 0 rgba(255,255,255,.32);
}
.btn-primary-x:hover{
  transform:translateY(-2px);
  filter:brightness(1.07);
  box-shadow:0 16px 38px rgba(110,139,255,.36),inset 0 1px 0 rgba(255,255,255,.4);
  color:#06121A;
}
.btn-primary-x:active{transform:translateY(1px) scale(.995);}
.btn-ghost-x{
  color:var(--text);
  background:rgba(255,255,255,.045);
  border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost-x:hover{
  transform:translateY(-2px);
  background:rgba(255,255,255,.085);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost-x:active{transform:translateY(1px) scale(.995);}
.btn-sm-x{min-height:42px;padding:0 18px;font-size:14px;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg,rgba(6,10,20,.35),rgba(6,10,20,.92)),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  opacity:.42;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:420px;
  height:420px;
  border-radius:50%;
  border:1px solid rgba(143,227,212,.16);
  box-shadow:0 0 0 28px rgba(143,227,212,.04),0 0 0 56px rgba(110,139,255,.035);
  pointer-events:none;
  z-index:0;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
}
.breadcrumb-x{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--text-3);
  margin-bottom:18px;
  letter-spacing:.03em;
}
.breadcrumb-x a{color:var(--text-3);}
.breadcrumb-x a:hover{color:var(--accent);}
.breadcrumb-x .sep{opacity:.5;}
.breadcrumb-x .current{color:var(--text-2);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--accent);
  background:rgba(143,227,212,.08);
  border:1px solid var(--line-strong);
  margin-bottom:18px;
}
.eyebrow .dot{
  width:5px;height:5px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 8px 2px rgba(143,227,212,.5);
}
.page-hero h1{
  font-size:clamp(2rem,3.6vw,3rem);
  line-height:1.3;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.page-hero h1 .hl{
  color:var(--accent);
}
.hero-sub{
  font-size:16.5px;
  color:var(--text-2);
  max-width:640px;
  line-height:1.85;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:22px;
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta .bar{
  width:1px;height:12px;background:var(--line);display:inline-block;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  padding:10px;
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  object-position:center 32%;
  border-radius:16px;
}
.hero-visual .visual-cap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 6px 2px;
  font-size:12.5px;
  color:var(--text-3);
}
.hero-visual .visual-cap strong{
  color:var(--accent);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}

/* ============ Sections ============ */
.section{padding:72px 0;}
.section-tight{padding:52px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.6rem,2.5vw,2.15rem);
  line-height:1.35;
}
.section-head .lead{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:640px;
}
.section-head .head-link{
  font-size:14px;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:7px;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.section-head .head-link:hover{border-color:var(--accent);}

/* Filter chips */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
}
.chip{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 18px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(143,227,212,.07);
  transform:translateY(-1px);
}
.chip.is-current{
  color:#06121A;
  background:linear-gradient(135deg,#8FE3D4,#6E8BFF);
  border-color:transparent;
  font-weight:600;
  box-shadow:0 8px 22px rgba(110,139,255,.24);
}

/* Magazine layout */
.mag-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:34px;
  align-items:start;
}
.mag-main{min-width:0;}

.feature-card{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:linear-gradient(155deg,rgba(23,33,62,.94),rgba(10,16,36,.96));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.feature-card:hover{
  border-color:var(--line-strong);
  transform:translateY(-4px);
  box-shadow:var(--glow),var(--shadow);
}
.feature-media{
  position:relative;
  min-height:280px;
  overflow:hidden;
}
.feature-media img{
  width:100%;
  height:100%;
  position:absolute;
  inset:0;
  object-fit:cover;
  transition:transform .5s ease;
}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.feature-media .media-tag{
  position:absolute;
  left:16px;
  top:16px;
  z-index:2;
}
.feature-body{
  padding:30px 30px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.feature-body h3{
  font-size:1.4rem;
  line-height:1.45;
}
.feature-body p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.feature-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:16px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
}
.meta-line{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12.5px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.meta-line .bar{width:1px;height:11px;background:var(--line);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--accent);
  font-weight:500;
}
.link-arrow svg{transition:transform .25s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.05em;
  color:var(--accent);
  background:rgba(143,227,212,.10);
  border:1px solid rgba(143,227,212,.28);
}
.tag.tag-rose{
  color:var(--rose);
  background:rgba(217,138,154,.10);
  border-color:rgba(217,138,154,.30);
}
.tag.tag-blue{
  color:#A9BCFF;
  background:rgba(110,139,255,.12);
  border-color:rgba(110,139,255,.30);
}
.tag.tag-plain{
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border-color:var(--line);
}

/* News rows */
.news-list{
  margin-top:26px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.news-row{
  display:flex;
  gap:16px;
  padding:18px;
  border-radius:var(--r-md);
  background:linear-gradient(155deg,rgba(20,29,56,.82),rgba(10,16,36,.86));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease,background .26s ease;
}
.news-row:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--glow);
  background:linear-gradient(155deg,rgba(25,36,68,.9),rgba(12,19,42,.92));
}
.news-thumb{
  flex:0 0 96px;
  width:96px;
  height:96px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-row:hover .news-thumb img{transform:scale(1.05);}
.news-body{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.news-body h3{
  font-size:1.02rem;
  line-height:1.5;
  font-family:var(--font-sans);
  font-weight:600;
  letter-spacing:.01em;
}
.news-body h3 a:hover{color:var(--accent);}
.news-body .excerpt{
  font-size:13.5px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body .meta-line{margin-top:auto;}

/* Sidebar */
.side-col{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  padding:24px 22px;
  border-radius:var(--r-md);
  background:linear-gradient(155deg,rgba(21,31,60,.86),rgba(9,15,34,.92));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.side-card h4{
  font-size:1.05rem;
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:16px;
  padding-bottom:13px;
  border-bottom:1px solid var(--line);
}
.side-card h4::before{
  content:"";
  width:4px;height:15px;
  border-radius:2px;
  background:linear-gradient(180deg,#8FE3D4,#6E8BFF);
  box-shadow:0 0 10px rgba(143,227,212,.45);
}
.side-nav li + li{border-top:1px solid rgba(198,214,255,.08);}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:44px;
  font-size:14px;
  color:var(--text-2);
}
.side-nav a span.arrow{
  color:var(--text-3);
  transition:transform .22s ease,color .22s ease;
}
.side-nav a:hover{color:var(--accent);}
.side-nav a:hover span.arrow{transform:translateX(4px);color:var(--accent);}
.side-nav a.is-active{color:var(--text);font-weight:600;}

.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
}
.tag-cloud a{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 13px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.tag-cloud a:hover{
  color:var(--accent);
  border-color:var(--line-strong);
  background:rgba(143,227,212,.08);
  transform:translateY(-2px);
}
.side-note{
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.85;
}
.side-note strong{color:var(--accent);font-weight:600;}
.side-list-dot li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  color:var(--text-2);
  line-height:1.8;
  margin-bottom:9px;
}
.side-list-dot li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--rose);
  box-shadow:0 0 8px rgba(217,138,154,.45);
}

/* Pagination */
.pager{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:36px;
  flex-wrap:wrap;
}
.pager a,
.pager span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:44px;
  padding:0 16px;
  border-radius:12px;
  font-size:14px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-variant-numeric:tabular-nums;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pager a:hover{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(143,227,212,.08);
  transform:translateY(-2px);
}
.pager .is-current{
  color:var(--accent);
  border-color:var(--line-strong);
  background:rgba(143,227,212,.10);
  box-shadow:0 0 0 1px rgba(143,227,212,.22),0 10px 26px rgba(110,139,255,.18);
  font-weight:600;
}
.pager .is-disabled{
  opacity:.42;
  pointer-events:none;
}

/* Explainer block */
.explain{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:36px;
  align-items:start;
  padding:38px;
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(18,27,54,.9),rgba(8,13,30,.94));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.explain::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-110px;
  width:280px;
  height:280px;
  border-radius:50%;
  border:1px solid rgba(217,138,154,.18);
  box-shadow:0 0 0 24px rgba(217,138,154,.04);
  pointer-events:none;
}
.explain h2{
  font-size:clamp(1.5rem,2.3vw,2rem);
  line-height:1.4;
  margin-bottom:14px;
}
.explain .side-text{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.9;
}
.explain ol{
  counter-reset:step;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.explain ol li{
  counter-increment:step;
  position:relative;
  padding-left:46px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}
.explain ol li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:1px;
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--accent);
  border:1px solid var(--line-strong);
  border-radius:8px;
  width:32px;
  height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-variant-numeric:tabular-nums;
}
.explain ol li strong{color:var(--text);font-weight:600;}

/* CTA band */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:40px 42px;
  background:linear-gradient(135deg,rgba(23,36,68,.95),rgba(10,16,36,.96));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:-60px;
  top:-90px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(143,227,212,.20),transparent 66%);
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-70px;
  bottom:-110px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(217,138,154,.18),transparent 66%);
  pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:2;}
.cta-band h2{
  font-size:clamp(1.5rem,2.4vw,2.05rem);
  line-height:1.4;
  margin-bottom:10px;
}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:560px;}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* Footer */
.site-footer{
  position:relative;
  background:#04070F;
  border-top:1px solid rgba(198,214,255,.10);
  padding:60px 0 0;
  margin-top:20px;
  z-index:2;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(143,227,212,.55),rgba(217,138,154,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{
  border-right:none;
  padding-right:0;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.9;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.08em;
  color:var(--text);
  margin-bottom:16px;
  font-family:var(--font-sans);
  font-weight:600;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.7;
  display:inline-block;
}
.footer-col ul li a:hover{color:var(--accent);}
.footer-legal{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(198,214,255,.10);
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* Mobile action bar */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(7,12,26,.94);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(110%);
  transition:transform .32s ease;
}
.mobile-bar.is-show{transform:translateY(0);}
.mobile-bar .btn-primary-x{flex:1;min-height:46px;}
.to-top{
  flex:0 0 46px;
  width:46px;height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-2);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.to-top:hover{border-color:var(--line-strong);color:var(--accent);background:rgba(143,227,212,.08);}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .hero-inner{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;}
  .mag-grid{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:26px;}
  .footer-grid{grid-template-columns:3fr 2fr 3fr;gap:30px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .nav-list,
  .nav-cta.d-none{display:none !important;}
  .nav-toggle{display:flex;}
  .site-nav{min-height:60px;}
  .brand-top{font-size:16px;}
  .brand-bottom{font-size:10px;letter-spacing:.26em;}
  .page-hero{padding:40px 0 34px;}
  .hero-inner{grid-template-columns:1fr;gap:28px;}
  .hero-visual{max-width:420px;}
  .section{padding:56px 0;}
  .section-tight{padding:42px 0;}
  .mag-grid{grid-template-columns:1fr;gap:28px;}
  .side-col{position:static;top:auto;}
  .feature-card{grid-template-columns:1fr;}
  .feature-media{min-height:200px;aspect-ratio:16/9;}
  .feature-body{padding:24px 22px 22px;}
  .explain{grid-template-columns:1fr;gap:24px;padding:28px 24px;}
  .cta-band{padding:30px 26px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:auto;}
  .mobile-bar{display:flex;}
  body{padding-bottom:0;}
}
@media (max-width:767.98px){
  .site-container{padding:0 16px;}
  .page-hero{padding:32px 0 28px;}
  .page-hero h1{font-size:clamp(1.65rem,6.2vw,2.1rem);line-height:1.36;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-primary-x,
  .hero-actions .btn-ghost-x{width:100%;}
  .hero-visual{max-width:100%;}
  .news-list{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:24px;}
  .section-head .head-link{font-size:13.5px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-primary-x,
  .cta-actions .btn-ghost-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:8px;}
  .feature-body h3{font-size:1.18rem;}
  .explain ol li{padding-left:42px;font-size:14px;}
}
@media (max-width:575.98px){
  .chip{min-height:36px;padding:0 14px;font-size:13px;}
  .news-thumb{flex:0 0 78px;width:78px;height:78px;}
  .pager a,.pager span{min-width:40px;height:40px;padding:0 12px;font-size:13px;}
  .page-hero::after{display:none;}
  .side-card{padding:20px 18px;}
  .cta-band{padding:24px 20px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category5 */
:root{
  --bg:#060A14;
  --bg-2:#0A1024;
  --panel:#111A36;
  --ink:#EDF2FF;
  --muted:#B7C3DD;
  --dim:#8593B2;
  --line:rgba(198,214,255,.14);
  --line-strong:rgba(143,227,212,.35);
  --primary:#6E8BFF;
  --mint:#8FE3D4;
  --rose:#D98A9A;
  --rose-deep:#C9778B;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(143,227,212,.18),0 12px 40px rgba(110,139,255,.22);
  --font-serif:"Source Han Serif SC","Noto Serif CJK SC","Songti SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(720px 520px at 8% 4%,rgba(143,227,212,.10),transparent 70%),
    radial-gradient(680px 520px at 92% 22%,rgba(217,138,154,.09),transparent 72%),
    radial-gradient(900px 620px at 50% 108%,rgba(110,139,255,.10),transparent 75%);
  opacity:.9;
}
img{max-width:100%;display:block}
a{color:var(--mint);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#b3f0e6}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.02em;margin:0;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;position:relative;z-index:1}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,20,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-nav{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:inline-flex;flex-direction:column;line-height:1.12;text-decoration:none}
.brand-top{font-family:var(--font-serif);font-size:18px;letter-spacing:.18em;color:var(--ink)}
.brand-bottom{font-size:11px;letter-spacing:.34em;color:var(--mint)}
.nav-list{display:flex;align-items:center;gap:4px;margin:0 0 0 auto}
.nav-list a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;border:1px solid transparent;
  color:var(--muted);font-size:14.5px;letter-spacing:.02em;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:var(--ink)}
.nav-list a.is-active{
  position:relative;padding-left:24px;color:var(--ink);
  background:rgba(143,227,212,.10);
  border-color:var(--line-strong);
  box-shadow:0 0 0 1px rgba(143,227,212,.10);
}
.nav-list a.is-active::before{
  content:"";position:absolute;left:11px;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 8px var(--mint);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--mint),var(--primary) 92%);
  color:#07101f;font-size:14.5px;font-weight:700;letter-spacing:.02em;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 10px 26px rgba(110,139,255,.28);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);color:#07101f;filter:brightness(1.06);box-shadow:0 16px 34px rgba(110,139,255,.36)}
.nav-cta:active{transform:translateY(1px) scale(.99)}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;padding:0;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--mint);border-radius:2px;box-shadow:0 0 6px rgba(143,227,212,.55)}
.nav-toggle:focus-visible{outline:2px solid var(--mint);outline-offset:3px}

/* Drawer */
.site-drawer{background:var(--bg-2);color:var(--ink);border-left:1px solid var(--line);width:min(320px,86vw)}
.site-drawer .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--ink);font-size:20px;line-height:1;
  cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:rgba(255,255,255,.1)}
.site-drawer .offcanvas-body{padding:12px 16px 28px}
.drawer-list li{border-bottom:1px solid rgba(198,214,255,.08)}
.drawer-list a{
  display:flex;align-items:center;height:48px;padding:0 10px;
  color:var(--muted);font-size:15px;border-radius:10px;
}
.drawer-list a:hover{background:rgba(255,255,255,.06);color:var(--ink)}
.drawer-list a.is-active{color:var(--ink);background:rgba(143,227,212,.10);border:1px solid var(--line-strong)}
.drawer-cta{
  display:flex;align-items:center;justify-content:center;height:48px;margin-top:18px;
  border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--mint),var(--primary) 92%);
  color:#07101f;font-weight:700;font-size:15px;
}

/* ===== Buttons ===== */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-main{
  background:linear-gradient(135deg,var(--mint) 0%,var(--primary) 96%);
  color:#07101f;border:1px solid rgba(255,255,255,.2);
  box-shadow:0 12px 30px rgba(110,139,255,.26);
}
.btn-main:hover{transform:translateY(-2px);color:#07101f;filter:brightness(1.06);box-shadow:0 18px 40px rgba(110,139,255,.36)}
.btn-main:active{transform:translateY(1px) scale(.995)}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--ink);
  border:1px solid var(--line);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:active{transform:translateY(1px)}
.btn-main:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--mint);outline-offset:3px}

/* ===== Tags ===== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  min-height:26px;padding:2px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--mint);
  background:rgba(143,227,212,.09);border:1px solid rgba(143,227,212,.28);
  font-family:var(--font-sans);
}
.tag-rose{color:var(--rose);background:rgba(217,138,154,.10);border-color:rgba(217,138,154,.30)}

/* ===== Hero ===== */
.page-hero{position:relative;overflow:hidden;padding:64px 0 56px;border-bottom:1px solid rgba(198,214,255,.08)}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(100deg,rgba(6,10,20,.96) 22%,rgba(6,10,20,.72) 62%,rgba(6,10,20,.9) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center 32%;
  opacity:.85;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(143,227,212,.14);box-shadow:0 0 0 44px rgba(143,227,212,.035),0 0 0 92px rgba(217,138,154,.03);
  pointer-events:none;z-index:0;
}
.crumbs{position:relative;z-index:1;margin-bottom:20px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--dim)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(133,147,178,.6)}
.crumbs a{color:var(--dim)}
.crumbs a:hover{color:var(--mint)}
.crumbs [aria-current]{color:var(--muted)}
.page-hero h1{
  position:relative;z-index:1;
  font-size:clamp(1.85rem,3.6vw,2.9rem);
  line-height:1.35;max-width:860px;margin-bottom:16px;
}
.page-hero .lede{
  position:relative;z-index:1;max-width:720px;
  color:var(--muted);font-size:16.5px;line-height:1.85;
}
.hero-tags{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags a{
  display:inline-flex;align-items:center;min-height:38px;padding:0 16px;border-radius:999px;
  font-size:13.5px;color:var(--muted);background:rgba(10,16,36,.62);
  border:1px solid var(--line);backdrop-filter:blur(10px);
  transition:border-color .22s ease,color .22s ease,transform .22s ease,background .22s ease;
}
.hero-tags a:hover{color:var(--ink);border-color:var(--line-strong);background:rgba(143,227,212,.10);transform:translateY(-2px)}

/* ===== Sections ===== */
.section{padding:80px 0;position:relative}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.25rem);line-height:1.4;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
  font-size:12px;letter-spacing:.28em;color:var(--mint);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--mint),transparent)}

/* Quick index strip */
.quick-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
}
.quick-item{
  display:flex;flex-direction:column;gap:8px;padding:20px 20px 22px;
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,26,54,.82),rgba(10,16,36,.86));
  box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease;
}
.quick-item:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.quick-item .num{font-family:var(--font-serif);font-size:13px;color:var(--mint);letter-spacing:.16em}
.quick-item h3{font-size:16px;line-height:1.5}
.quick-item p{font-size:13.5px;color:var(--dim);line-height:1.7}
.quick-item a{font-size:13.5px;color:var(--mint);margin-top:auto}

/* FAQ layout */
.faq-group+.faq-group{margin-top:36px}
.group-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.group-title h3{font-size:1.2rem}
.group-title .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
.accordion-item{
  background:linear-gradient(180deg,rgba(17,26,54,.86),rgba(10,16,36,.92));
  border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-bottom:12px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.accordion-item:hover{border-color:var(--line-strong);box-shadow:0 10px 30px rgba(0,0,0,.28)}
.accordion-button{
  background:transparent;color:var(--ink);font-size:16.5px;font-weight:600;
  font-family:var(--font-sans);line-height:1.6;
  padding:18px 58px 18px 20px;border:0;border-radius:16px;box-shadow:none;
}
.accordion-button:not(.collapsed){
  color:var(--ink);
  background:linear-gradient(90deg,rgba(143,227,212,.12),rgba(110,139,255,.05) 60%,transparent);
  box-shadow:inset 3px 0 0 var(--mint);
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--mint),0 0 0 2px rgba(143,227,212,.35);border-color:transparent}
.accordion-button::after{
  content:"";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(143,227,212,.35);background-color:rgba(143,227,212,.08);
  background-image:linear-gradient(var(--mint),var(--mint)),linear-gradient(var(--mint),var(--mint));
  background-size:11px 1.6px,1.6px 11px;
  background-position:center,center;background-repeat:no-repeat;
  transition:background-size .25s ease,transform .25s ease,border-color .25s ease;
}
.accordion-button:not(.collapsed)::after{
  background-size:11px 1.6px,0 0;border-color:var(--mint);
  box-shadow:0 0 12px rgba(143,227,212,.35);
}
.accordion-body{
  padding:2px 24px 22px 20px;color:var(--muted);font-size:15.5px;line-height:1.9;
}
.accordion-body strong{color:var(--ink);font-weight:600}

/* Side cards */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.glass-card{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,26,54,.88),rgba(10,16,36,.94));
  box-shadow:var(--shadow);padding:24px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.glass-card h3{font-size:1.15rem;margin-bottom:8px}
.glass-card .card-note{font-size:13.5px;color:var(--dim);line-height:1.75;margin-bottom:18px}

/* Form */
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.form-control,.form-select{
  width:100%;min-height:48px;padding:11px 14px;
  background:rgba(6,10,20,.78);color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:15px;line-height:1.6;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
textarea.form-control{min-height:112px;resize:vertical;line-height:1.8}
.form-control::placeholder{color:rgba(133,147,178,.8)}
.form-control:focus,.form-select:focus{
  background:rgba(6,10,20,.92);color:var(--ink);
  border-color:var(--mint);box-shadow:0 0 0 3px rgba(143,227,212,.18);outline:none;
}
.form-select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%238FE3D4'%3E%3Cpath d='M8 11.2 3.2 6.4l1.1-1.1L8 9l3.7-3.7 1.1 1.1z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:14px;
  padding-right:40px;
}
.form-select option{background:var(--panel);color:var(--ink)}
.form-consent{display:flex;align-items:flex-start;gap:10px;margin-bottom:18px}
.form-check-input{
  width:18px;height:18px;margin-top:4px;flex:0 0 18px;
  background:rgba(6,10,20,.8);border:1px solid var(--line);border-radius:5px;
}
.form-check-input:checked{background:var(--mint);border-color:var(--mint)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(143,227,212,.22);border-color:var(--mint);outline:none}
.form-consent label{font-size:13px;color:var(--dim);line-height:1.7}
.field-error{display:none;margin-top:6px;font-size:12.5px;color:var(--rose-deep)}
.field-error.is-on{display:block}
.form-status{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);
  font-size:13.5px;line-height:1.7;
  color:var(--mint);background:rgba(143,227,212,.10);border:1px solid rgba(143,227,212,.32);
}
.form-status.is-on{display:block}
.form-status.is-warn{color:var(--rose);background:rgba(217,138,154,.10);border-color:rgba(217,138,154,.34)}

/* Help card with image */
.help-card{padding:0;overflow:hidden}
.help-card img{width:100%;height:150px;object-fit:cover;object-position:center 40%;filter:saturate(.92)}
.help-card .help-body{padding:20px 22px 22px}
.help-list{margin-top:14px}
.help-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;border-top:1px solid rgba(198,214,255,.08);
  font-size:13.5px;color:var(--muted);line-height:1.75;
}
.help-list li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:8px;border-radius:50%;
  background:var(--mint);box-shadow:0 0 8px rgba(143,227,212,.6);
}

/* Continue cards */
.next-grid{display:grid;grid-template-columns:7fr 5fr;gap:20px}
.next-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,26,54,.86),rgba(10,16,36,.94));
  box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease;
}
.next-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.next-card .thumb{position:relative;overflow:hidden;height:200px}
.next-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.next-card:hover .thumb img{transform:scale(1.04)}
.next-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px}
.next-card h3{font-size:1.2rem;line-height:1.5}
.next-card p{font-size:14px;color:var(--muted);line-height:1.8}
.next-card .link{margin-top:6px;font-size:14px;font-weight:600}
.next-card .link::after{content:"›";margin-left:6px}

/* CTA band */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(17,26,54,.94),rgba(10,16,36,.96));
  box-shadow:var(--glow);
  padding:36px 34px;display:flex;align-items:center;gap:28px;justify-content:space-between;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-110px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(143,227,212,.18),transparent 68%);
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:8px;position:relative}
.cta-band p{color:var(--muted);font-size:14.5px;position:relative;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* Footer */
.site-footer{
  position:relative;margin-top:24px;background:#04070F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(143,227,212,.45),rgba(217,138,154,.35),transparent) 1;
  padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--dim);line-height:1.85;max-width:330px}
.footer-col h4{font-family:var(--font-sans);font-size:13.5px;font-weight:600;letter-spacing:.12em;color:var(--ink);margin-bottom:14px}
.footer-col ul li{margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--muted);line-height:1.7}
.footer-col a:hover{color:var(--mint)}
.footer-legal{
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(198,214,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12px;color:var(--dim);letter-spacing:.02em;
}

/* Responsive */
@media (max-width:1199.98px){
  .quick-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .next-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:991.98px){
  .nav-list,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{height:60px;gap:12px}
  .page-hero{padding:44px 0 40px}
  .section{padding:56px 0}
  .side-stack{position:static;margin-top:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 100%}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .page-hero h1{font-size:30px;line-height:1.4}
  .page-hero .lede{font-size:15.5px}
  .section{padding:48px 0}
  .quick-strip{grid-template-columns:1fr}
  .next-card .thumb{height:170px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-legal{flex-direction:column;gap:8px;font-size:12px}
  .accordion-button{font-size:15.5px;padding:16px 52px 16px 16px}
  .accordion-body{padding:2px 18px 20px 16px;font-size:15px}
  .glass-card{padding:20px}
}
@media (max-width:575.98px){
  .hero-tags a{width:100%;justify-content:center}
  .page-hero::after{display:none}
  .btn-main,.btn-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}