/* roulang page: index */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.25);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --err:#FF5470;
  --r-card:18px;
  --r-tile:14px;
  --r-input:12px;
  --r-pill:999px;
  --shell:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;}
input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:650;line-height:1.3;letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(255,107,74,.28);color:#fff;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部倒计时条 ---------- */
.countdown-bar{
  background:rgba(17,31,43,.74);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,107,74,.3);
}
.countdown-inner{
  min-height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.countdown-name{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--t-2);
  min-width:0;
}
.countdown-name b{
  color:var(--t-1);
  font-weight:600;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.countdown-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--coral);
  box-shadow:0 0 0 4px rgba(255,107,74,.16);
  flex:0 0 auto;
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(255,107,74,.16);}
  50%{box-shadow:0 0 0 8px rgba(255,107,74,.05);}
}
.countdown-clock{
  display:flex;
  align-items:center;
  gap:2px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  color:var(--coral);
}
.countdown-clock i{color:var(--t-3);font-style:normal;padding:0 3px;font-weight:400;}
.countdown-clock span{display:inline-block;min-width:2ch;text-align:center;}
.countdown-link{
  font-size:13px;
  color:var(--teal);
  white-space:nowrap;
  border-bottom:1px solid transparent;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.countdown-link:hover{border-bottom-color:var(--teal);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.84);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:76px;
}
.brand{
  display:flex;
  flex-direction:column;
  gap:1px;
  flex:0 0 auto;
  min-width:0;
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--t-1);
  letter-spacing:-.3px;
  white-space:nowrap;
}
.brand-sub{
  font-size:11px;
  color:var(--t-3);
  letter-spacing:.4px;
  white-space:nowrap;
}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 auto;
  padding:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--t-2);
  border:1px solid var(--line);
  background:transparent;
  white-space:nowrap;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.nav-tab:hover{color:#fff;border-color:var(--line-hover);}
.nav-tab.is-active{
  background:var(--coral-weak);
  border-color:var(--line-accent);
  color:#FFC0B0;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:transparent;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hover);}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--t-1);
  border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  position:fixed;
  inset:0;
  z-index:80;
  padding:88px 24px 32px;
  background:rgba(7,13,20,.98);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-title{
  font-size:12px;
  letter-spacing:1px;
  color:var(--t-3);
  margin-bottom:8px;
}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 18px;
  border-radius:var(--r-tile);
  border:1px solid var(--line);
  background:var(--bg-1);
  color:var(--t-1);
  font-size:15px;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.drawer-link:hover{border-color:var(--line-hover);}
.drawer-link.is-active{border-color:var(--line-accent);background:var(--coral-weak);color:#FFC0B0;}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-md{height:44px;padding:0 22px;font-size:14px;}
.btn-sm{height:36px;padding:0 16px;font-size:13px;}
.btn-primary{
  background:var(--coral);
  color:#1A0A06;
  box-shadow:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
}
.btn-primary:hover{
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,107,74,.9),0 14px 34px rgba(255,107,74,.34);
}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;filter:none;}
.btn-ghost{
  background:transparent;
  color:var(--t-1);
  border-color:rgba(255,255,255,.12);
}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(820px 420px at 82% 4%,rgba(51,214,192,.09),transparent 62%),
    radial-gradient(680px 380px at 6% 0%,rgba(255,107,74,.08),transparent 58%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:56px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-accent);
  background:var(--coral-weak);
  color:#FFC0B0;
  font-size:12px;
  letter-spacing:.4px;
  margin-bottom:24px;
}
.hero h1{
  font-size:48px;
  line-height:1.22;
  letter-spacing:-.5px;
  font-weight:700;
}
.hero h1 .hl{color:var(--coral);}
.hero-sub{
  margin-top:20px;
  max-width:520px;
  font-size:17px;
  line-height:1.8;
  color:var(--t-2);
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:32px;
  flex-wrap:wrap;
}
.hero-stats{
  display:flex;
  gap:12px;
  margin-top:40px;
  flex-wrap:wrap;
}
.stat-pill{
  flex:1 1 0;
  min-width:132px;
  padding:14px 18px;
  border-radius:var(--r-tile);
  border:1px solid var(--line);
  background:rgba(22,41,53,.42);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.stat-pill b{
  display:block;
  font-size:24px;
  font-weight:700;
  line-height:1.25;
  color:var(--t-1);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.stat-pill span{
  font-size:12px;
  color:var(--t-3);
  line-height:1.6;
}
.hero-visual{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
  background:var(--bg-2);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-card);
  box-shadow:inset 0 0 0 1px rgba(51,214,192,.26);
  pointer-events:none;
}
.hero-badge{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:rgba(7,13,20,.78);
  border:1px solid var(--line-hover);
  color:var(--t-1);
  font-size:12px;
  letter-spacing:.3px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.hero-badge em{
  font-style:normal;
  color:var(--teal);
  font-variant-numeric:tabular-nums;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section-alt{background:rgba(12,22,32,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:30px;
  font-weight:650;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.26em;
  bottom:.26em;
  width:3px;
  border-radius:2px;
  background:var(--coral);
}
.section-lead{
  margin-top:12px;
  padding-left:16px;
  max-width:660px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-2);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--teal);
  border-bottom:1px solid transparent;
  text-underline-offset:3px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.link-more:hover{border-bottom-color:var(--teal);}

/* ---------- 活动卖点 ---------- */
.points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 56px;
  border-top:1px solid var(--line);
}
.point{
  display:flex;
  gap:18px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.point-num{
  flex:0 0 auto;
  font-size:14px;
  font-weight:700;
  letter-spacing:.6px;
  color:var(--coral);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  padding-top:5px;
}
.point h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.point p{font-size:14px;line-height:1.75;color:var(--t-2);}

/* ---------- 亮点图墙 ---------- */
.tiles{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:20px;
  align-items:stretch;
}
.tile{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-tile);
  border:1px solid var(--line);
  background:rgba(17,31,43,.55);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  overflow:hidden;
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}
.tile:hover{
  border-color:var(--line-hover);
  transform:translateY(-3px);
  background:rgba(17,31,43,.78);
}
.tile-media{
  position:relative;
  overflow:hidden;
  background:var(--bg-2);
  flex:0 0 auto;
}
.tile-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:filter .22s var(--ease);
}
.tile:hover .tile-media img{filter:brightness(1.08);}
.tile-body{
  padding:16px 18px 18px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.tile-body h3{font-size:16px;font-weight:600;line-height:1.5;}
.tile-body p{font-size:13px;color:var(--t-3);line-height:1.7;}
.tile-a{grid-column:span 7;}
.tile-a .tile-media{aspect-ratio:16/9;}
.tile-b{grid-column:span 5;}
.tile-b .tile-media{aspect-ratio:16/9;}
.tile-c{grid-column:span 5;}
.tile-c .tile-media{aspect-ratio:16/9;}
.tile-d{grid-column:span 7;}
.tile-d .tile-media{aspect-ratio:16/9;}
.tile-e{grid-column:span 6;}
.tile-e .tile-media{aspect-ratio:16/9;}
.tile-f{grid-column:span 6;}
.tile-f .tile-media{aspect-ratio:16/9;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:22px;
  padding:0 9px;
  border-radius:6px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  background:var(--teal-weak);
  color:var(--teal);
}
.badge-coral{background:var(--coral-weak);color:var(--coral);}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.news-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:26px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}
.news-card:hover{
  border-color:var(--line-hover);
  transform:translateY(-3px);
  background:var(--bg-2);
}
.news-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--t-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--t-3);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
}
.empty-state{
  grid-column:1 / -1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  min-height:180px;
  padding:32px;
  border-radius:var(--r-card);
  border:1px dashed var(--line);
  background:var(--bg-1);
  text-align:center;
}
.empty-state span{font-size:14px;color:var(--t-3);}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
  padding:48px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-2);
}
.cta-panel h2{
  font-size:30px;
  font-weight:650;
  line-height:1.3;
}
.cta-panel .cta-desc{
  margin-top:14px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-2);
  max-width:460px;
}
.cta-points{
  margin-top:22px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.cta-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--t-2);
}
.cta-points li::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--teal);
  flex:0 0 auto;
}
.form-card{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;color:var(--t-3);}
.field input{
  height:48px;
  border-radius:var(--r-input);
  border:1px solid var(--line);
  background:rgba(7,13,20,.6);
  color:var(--t-1);
  padding:0 16px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input::placeholder{color:var(--t-3);}
.field input:focus{
  outline:none;
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(51,214,192,.14);
}
.check-row{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:12px;
  color:var(--t-3);
  line-height:1.6;
}
.check-row input{
  width:15px;height:15px;
  margin-top:4px;
  accent-color:var(--coral);
  flex:0 0 auto;
}
.form-tip{
  font-size:13px;
  color:var(--teal);
  min-height:20px;
}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:920px;
}
.faq-item{
  border-radius:var(--r-tile);
  border:1px solid var(--line);
  background:rgba(22,41,53,.34);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.16);}
.faq-item.is-open{border-color:var(--line-accent);background:rgba(22,41,53,.5);}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  color:var(--t-1);
  font-size:16px;
  font-weight:500;
  line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:#fff;}
.faq-item.is-open .faq-q{color:#fff;}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--coral);
}
.faq-icon{
  flex:0 0 auto;
  width:20px;height:20px;
  position:relative;
  transition:transform .22s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--t-2);
  border-radius:2px;
  transition:background .22s var(--ease);
}
.faq-icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-item.is-open .faq-icon::before{background:var(--coral);}
.faq-item.is-open .faq-icon::after{background:var(--coral);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--t-2);
}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(12,22,32,.66);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-desc{
  margin-top:14px;
  max-width:300px;
  font-size:14px;
  line-height:1.8;
  color:var(--t-3);
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--t-1);
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--t-2);
  transition:color .22s var(--ease);
}
.footer-col a:hover{color:var(--teal);}
.footer-contact li{
  font-size:14px;
  color:var(--t-2);
  line-height:1.7;
}
.footer-contact li span{color:var(--t-3);}
.footer-bottom{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--t-3);
}
.footer-bottom .disclaimer{max-width:640px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:100%;}
  .hero h1{font-size:44px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991px){
  .nav-tabs{display:none;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .header-inner{min-height:68px;}
  .section{padding:72px 0;}
  .hero{padding:48px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:16px;max-width:100%;}
  .points{grid-template-columns:1fr;gap:0;}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tile-a,.tile-b,.tile-c,.tile-d,.tile-e,.tile-f{grid-column:span 1;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .section-head h2{font-size:26px;}
  .cta-panel h2{font-size:26px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .countdown-inner{
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding-top:10px;
    padding-bottom:10px;
    min-height:0;
  }
  .countdown-clock{font-size:15px;}
  .news-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .hero{padding:36px 0 56px;}
  .hero h1{font-size:32px;}
  .section-head h2{font-size:23px;}
  .cta-panel{padding:28px;}
  .cta-panel h2{font-size:23px;}
  .tiles{gap:14px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{margin-top:36px;}
}
@media (max-width:560px){
  body{font-size:15px;}
  .brand-name{font-size:16px;}
  .brand-sub{display:none;}
  .hero h1{font-size:30px;letter-spacing:-.3px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{flex-direction:column;}
  .stat-pill{min-width:0;}
  .tiles{grid-template-columns:1fr;}
  .btn-lg{height:50px;padding:0 22px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14px;}
  .news-card{padding:20px;}
  .cta-panel{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .tile:hover,.news-card:hover,.btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.25);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --err:#FF5470;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-float:0 10px 30px rgba(0,0,0,.45);
  --shadow-cta:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 82% -8%,rgba(255,107,74,.10),transparent 68%),
    radial-gradient(680px 380px at 4% 2%,rgba(51,214,192,.08),transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%;border-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:650;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(255,107,74,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:76px;}
.brand{display:flex;flex-direction:column;gap:2px;flex:0 0 auto;}
.brand-name{font-size:17px;font-weight:700;color:var(--t-1);letter-spacing:.2px;line-height:1.3;white-space:nowrap;}
.brand-name:hover{color:#fff;}
.brand-sub{font-size:12px;color:var(--t-3);line-height:1.4;letter-spacing:.3px;}
.nav-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;flex:1 1 auto;scrollbar-width:none;padding:4px 0;}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;
  line-height:1.4;
  color:var(--t-2);
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.nav-tab:hover{border-color:var(--line-hover);color:var(--t-1);}
.nav-tab.is-active{background:var(--coral-weak);border-color:var(--line-accent);color:#FFC9BB;}
.header-cta{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  font-weight:600;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  height:52px;
  padding:0 32px;
  font-size:16px;
  background:var(--coral);
  color:var(--t-inv);
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background:#FF7A5C;
  box-shadow:0 0 0 1px rgba(255,107,74,.9),0 14px 34px rgba(255,107,74,.34);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,107,74,.7);}
.btn-ghost{
  height:48px;
  padding:0 26px;
  font-size:15px;
  background:transparent;
  border-color:rgba(255,255,255,.12);
  color:var(--t-1);
}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;box-shadow:none;}
.btn-sm:hover{transform:translateY(-1px);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--teal);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}
.btn-text:hover{text-decoration-thickness:2px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;box-shadow:none;}

/* ===== Mobile drawer ===== */
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:0 11px;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  transition:border-color var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hover);}
.nav-toggle span{display:block;height:2px;background:var(--t-1);border-radius:2px;transition:background var(--ease);}
.nav-drawer{
  display:none;
  position:fixed;
  left:0;right:0;
  top:76px;bottom:0;
  z-index:55;
  padding:24px 20px 48px;
  background:rgba(7,13,20,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  overflow-y:auto;
}
.nav-drawer.is-open{display:block;}
.drawer-nav{display:flex;flex-direction:column;gap:10px;}
.drawer-nav a{
  display:block;
  padding:14px 18px;
  border:1px solid var(--line);
  border-radius:14px;
  font-size:15px;
  color:var(--t-1);
  transition:border-color var(--ease),background var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{border-color:var(--line-accent);background:var(--coral-weak);color:#FFC9BB;}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}

/* ===== Breadcrumb ===== */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding-top:28px;
  font-size:13px;
  line-height:1.6;
  color:var(--t-3);
}
.breadcrumb a{color:var(--t-3);}
.breadcrumb a:hover{color:var(--teal);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{
  color:var(--t-2);
  max-width:360px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ===== Article shell ===== */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
  padding:32px 0 96px;
}
.article-main{min-width:0;}

.article-head{padding-bottom:24px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  line-height:1.6;
}
.badge-coral{background:var(--coral-weak);color:var(--coral);}
.badge-teal{background:var(--teal-weak);color:var(--teal);}
.article-title{
  margin-top:16px;
  font-size:36px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--t-1);
  word-break:break-word;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:18px;
  font-size:13px;
  color:var(--t-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.22);}

/* ===== Prose ===== */
.prose{
  max-width:780px;
  margin-top:32px;
  font-size:16px;
  line-height:1.9;
  color:var(--t-2);
  word-break:break-word;
}
.prose > *:first-child{margin-top:0;}
.prose p{margin-top:20px;}
.prose h2{
  position:relative;
  margin-top:32px;
  padding-left:16px;
  font-size:22px;
  line-height:1.5;
  font-weight:650;
  color:var(--t-1);
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.42em;
  width:3px;
  height:16px;
  border-radius:2px;
  background:var(--coral);
}
.prose h3{margin-top:28px;font-size:18px;line-height:1.55;font-weight:600;color:var(--t-1);}
.prose h4{margin-top:24px;font-size:16px;font-weight:600;color:var(--t-1);}
.prose ul,.prose ol{margin-top:16px;padding-left:22px;}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin-top:10px;line-height:1.85;}
.prose li::marker{color:var(--teal);}
.prose ol li::marker{font-variant-numeric:tabular-nums;font-weight:600;}
.prose strong,.prose b{color:var(--t-1);font-weight:600;}
.prose a{color:var(--teal);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
.prose a:hover{text-decoration-thickness:2px;}
.prose a:visited{color:var(--teal);}
.prose blockquote{
  margin-top:24px;
  padding:16px 20px;
  border-left:3px solid var(--teal);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--teal-weak);
  color:var(--t-1);
  font-size:15px;
}
.prose blockquote p{margin-top:0;}
.prose blockquote p + p{margin-top:12px;}
.prose img{
  width:auto;
  max-width:100%;
  margin:24px auto 0;
  border-radius:var(--r-md);
  border:1px solid var(--line);
}
.prose figure{margin:24px 0 0;}
.prose figcaption,.prose .caption{
  margin-top:10px;
  font-size:13px;
  line-height:1.6;
  color:var(--t-3);
  text-align:center;
}
.prose hr{margin:32px 0;border:0;border-top:1px solid var(--line);}
.prose code{
  padding:2px 6px;
  border-radius:6px;
  background:var(--bg-2);
  border:1px solid var(--line);
  font-size:14px;
  color:#FFC9BB;
}
.prose pre{
  margin-top:24px;
  padding:18px;
  overflow-x:auto;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.prose pre code{padding:0;border:0;background:none;color:var(--t-2);}
.prose table{
  width:100%;
  margin-top:24px;
  border-collapse:collapse;
  font-size:14px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose th{background:var(--bg-2);color:var(--t-1);font-weight:600;}
.prose tr:last-child td{border-bottom:0;}

/* ===== Empty state ===== */
.empty-state{
  min-height:180px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  margin-top:32px;
  padding:36px 24px;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  background:var(--bg-1);
  text-align:center;
}
.empty-icon{
  width:44px;
  height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-accent);
  background:var(--coral-weak);
  color:var(--coral);
  font-size:18px;
  font-weight:700;
}
.empty-state p{font-size:15px;color:var(--t-2);}

/* ===== Sidebar ===== */
.article-side{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  padding:22px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color var(--ease);
}
.side-card:hover{border-color:var(--line-hover);}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-size:14px;
  font-weight:600;
  color:var(--t-1);
}
.side-title::before{
  content:"";
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--teal);
}
.side-list li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);}
.side-list a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--t-2);
}
.side-list a:hover{color:var(--teal);}
.side-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--t-3);
}
.side-card .btn{width:100%;margin-top:16px;}
.side-card .btn-text{margin-top:12px;width:100%;justify-content:center;}

/* ===== Related ===== */
.related{padding-top:48px;border-top:1px solid var(--line);margin-top:48px;}
.section-h2{
  position:relative;
  padding-left:14px;
  font-size:22px;
  line-height:1.4;
  font-weight:650;
  color:var(--t-1);
  margin-bottom:20px;
}
.section-h2::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:18px;
  border-radius:2px;
  background:var(--coral);
}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;
  gap:14px;
  padding:14px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.rel-card:hover{border-color:var(--line-hover);transform:translateY(-3px);background:var(--bg-2);}
.rel-thumb{
  flex:0 0 84px;
  width:84px;
  height:84px;
  border-radius:10px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.rel-body h3{font-size:15px;line-height:1.5;font-weight:600;color:var(--t-1);}
.rel-body span{font-size:12px;color:var(--t-3);}

/* ===== CTA strip ===== */
.cta-strip{padding-bottom:96px;}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:40px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:24px;
}
.cta-inner h2{font-size:24px;line-height:1.4;font-weight:650;color:var(--t-1);max-width:560px;}
.cta-inner p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--t-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(9,16,24,.86);
  padding:64px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-col .brand{display:inline-flex;flex-direction:column;gap:4px;}
.footer-col .brand-name{font-size:17px;font-weight:700;color:var(--t-1);}
.footer-desc{
  margin-top:14px;
  max-width:320px;
  font-size:13px;
  line-height:1.8;
  color:var(--t-3);
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--t-1);
  margin-bottom:16px;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:13px;color:var(--t-3);line-height:1.6;}
.footer-col ul a:hover{color:var(--teal);}
.footer-contact li{font-size:13px;color:var(--t-3);line-height:1.7;}
.footer-contact span{color:var(--t-2);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--t-3);
}
.footer-bottom .disclaimer{max-width:640px;line-height:1.7;}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .container{max-width:100%;}
  .article-shell{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
  .article-title{font-size:34px;}
}
@media (max-width:991px){
  .container{padding:0 20px;}
  .header-inner{min-height:68px;gap:14px;}
  .nav-tabs{display:none;}
  .nav-toggle{display:flex;}
  .nav-drawer{top:68px;}
  .header-cta .btn-sm{padding:0 16px;}
  .brand-sub{display:none;}
  .article-shell{grid-template-columns:minmax(0,1fr);gap:40px;padding-bottom:72px;}
  .article-side{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .article-side .side-card{flex:1 1 260px;}
  .article-title{font-size:30px;}
  .prose{max-width:100%;}
  .cta-inner{padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .article-title{font-size:26px;letter-spacing:-.2px;}
  .related-grid{grid-template-columns:1fr;}
  .breadcrumb .current{max-width:200px;}
  .cta-strip{padding-bottom:64px;}
  .cta-inner h2{font-size:20px;}
  .btn-primary{height:48px;padding:0 24px;font-size:15px;}
  .btn-ghost{height:44px;padding:0 20px;font-size:14px;}
}
@media (max-width:559px){
  .container{padding:0 16px;}
  .article-title{font-size:23px;}
  .prose{font-size:15px;line-height:1.9;}
  .prose h2{font-size:19px;}
  .prose h3{font-size:16px;}
  .header-cta .btn-sm{height:36px;padding:0 14px;font-size:13px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.rel-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.55);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --err:#FF5470;
  --radius:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --pill:999px;
  --dur:.22s;
  --ease:cubic-bezier(.4,0,.2,1);
  --shadow-float:0 10px 30px rgba(0,0,0,.45);
  --glow-coral:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg-0);
  color:var(--t-2);
  font-size:16px;
  line-height:1.85;
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:radial-gradient(900px 520px at 78% -10%,rgba(51,214,192,.10),transparent 70%),
             radial-gradient(760px 460px at 6% 4%,rgba(255,107,74,.08),transparent 72%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:var(--teal);text-decoration:none;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),opacity var(--dur) var(--ease)}
a:hover{color:#5CE8D5}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:650;line-height:1.34;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;flex-direction:column;gap:2px;line-height:1.2;flex:0 0 auto}
.brand-name{font-size:17px;font-weight:700;color:var(--t-1);letter-spacing:-.3px}
.brand-sub{font-size:12px;color:var(--t-3);letter-spacing:.2px}
.site-nav{margin-left:auto;min-width:0}
.nav-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{
  display:inline-block;padding:8px 16px;border-radius:var(--pill);
  border:1px solid var(--line);font-size:14px;color:var(--t-2);
  white-space:nowrap;text-decoration:none;line-height:1.4;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-tab:hover{border-color:var(--line-hover);color:var(--t-1);background:rgba(255,255,255,.03)}
.nav-tab.is-active{background:var(--coral-weak);border-color:var(--line-accent);color:#FFC4B6;font-weight:600}
.nav-tab.is-active:hover{color:#FFD7CD}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color var(--dur) var(--ease)
}
.nav-toggle:hover{border-color:var(--line-hover)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-cta{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.btn-sm{height:36px;padding:0 18px;font-size:13px}
.btn-md{height:44px;padding:0 22px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--coral);color:var(--t-inv);box-shadow:var(--glow-coral)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,107,74,.9),0 14px 32px rgba(255,107,74,.36);color:var(--t-inv);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,107,74,.7),0 6px 16px rgba(255,107,74,.22)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.12);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;background:rgba(51,214,192,.06)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}
.link-plain{color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.link-plain:hover{text-decoration-thickness:2px}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.3px;line-height:1;
  padding:6px 10px;border-radius:6px;
}
.badge-coral{background:var(--coral-weak);color:#FFB4A2}
.badge-teal{background:var(--teal-weak);color:#7FE9DA}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--t-3)}

/* ---------- Hero ---------- */
.page-hero{position:relative;padding:56px 0 96px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,13,20,.90),rgba(7,13,20,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.85;z-index:0;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start}
.hero-main h1{font-size:clamp(30px,3.8vw,44px);line-height:1.24;letter-spacing:-.5px;margin-top:18px;font-weight:700}
.hero-main h1 .hl{color:var(--coral)}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.85;color:var(--t-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;font-size:13px;color:var(--t-3)}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}

/* ---------- 时间轴 ---------- */
.timeline{list-style:none;margin:44px 0 0;padding:0}
.timeline li{position:relative;padding:0 0 30px 60px}
.timeline li::before{content:"";position:absolute;left:18px;top:38px;bottom:2px;width:1px;background:var(--line);transition:background var(--dur) var(--ease)}
.timeline li:last-child{padding-bottom:0}
.timeline li:last-child::before{display:none}
.tl-num{
  position:absolute;left:0;top:0;width:37px;height:37px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:600;
  color:var(--t-3);background:var(--bg-1);border:1px solid var(--line);
  font-variant-numeric:tabular-nums;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.timeline li.is-lit .tl-num{color:var(--coral);border-color:var(--line-accent);background:var(--coral-weak);box-shadow:0 0 0 5px rgba(255,107,74,.07)}
.timeline li.is-lit::before{background:linear-gradient(180deg,rgba(255,107,74,.5),var(--line))}
.tl-body h3{font-size:18px;font-weight:600;color:var(--t-1);margin-bottom:6px}
.tl-body p{font-size:14.5px;color:var(--t-2);line-height:1.8}

/* ---------- 快速入口卡 ---------- */
.quick-card{
  position:sticky;top:96px;
  background:rgba(17,31,43,.62);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-float);
}
.quick-card h2{font-size:19px;font-weight:650;margin-bottom:8px}
.quick-card .quick-desc{font-size:13.5px;color:var(--t-2);line-height:1.75;margin-bottom:20px}
.quick-actions{display:flex;flex-direction:column;gap:10px}
.quick-actions .btn{width:100%}
.quick-points{list-style:none;margin:22px 0 0;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:12px}
.quick-points li{position:relative;padding-left:20px;font-size:13.5px;color:var(--t-2);line-height:1.7}
.quick-points li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--teal);opacity:.85;
}
.quick-note{margin-top:18px;display:flex;gap:8px;align-items:flex-start;font-size:12.5px;color:var(--t-3);line-height:1.7}
.quick-note .ico{flex:0 0 auto;width:12px;height:12px;margin-top:5px;border-radius:3px;background:var(--warn);opacity:.9}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(12,22,32,.72),rgba(7,13,20,0))}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  position:relative;font-size:clamp(23px,2.6vw,30px);font-weight:650;padding-left:16px;line-height:1.35;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--coral);
}
.section-head p{margin-top:14px;font-size:15px;color:var(--t-2);line-height:1.85;max-width:720px}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:32px;align-items:stretch}
.panel{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.panel:hover{border-color:var(--line-hover);transform:translateY(-3px);background:#0E1A24}
.check-list{list-style:none;display:grid;gap:18px}
.check-list li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:start}
.check-idx{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--teal-weak);color:#7FE9DA;font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;border:1px solid rgba(51,214,192,.2);
}
.check-list h3{font-size:16.5px;font-weight:600;margin-bottom:4px}
.check-list p{font-size:14px;color:var(--t-2);line-height:1.78}
.media-panel{padding:0;overflow:hidden;display:flex;flex-direction:column}
.media-panel figure{margin:0;position:relative;aspect-ratio:16/10;background:var(--bg-2)}
.media-panel figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.media-panel figcaption{padding:22px 26px 26px;font-size:14px;line-height:1.8;color:var(--t-2)}
.media-panel figcaption strong{display:block;color:var(--t-1);font-size:16px;font-weight:600;margin-bottom:6px}

/* ---------- 入口方式对照条 ---------- */
.compare-bar{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
}
.compare-item{padding:0 24px;border-left:1px solid var(--line)}
.compare-item:first-child{padding-left:0;border-left:none}
.compare-item .tag{font-size:12px;color:var(--t-3);letter-spacing:.4px}
.compare-item h3{font-size:16px;font-weight:600;margin:8px 0 6px}
.compare-item p{font-size:13.5px;color:var(--t-2);line-height:1.75}

/* ---------- 设备适配 ---------- */
.device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.device-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease)
}
.device-card:hover{border-color:var(--line-hover);transform:translateY(-3px)}
.device-card h3{font-size:19px;font-weight:600;display:flex;align-items:center;gap:10px}
.device-card h3 .mark{width:10px;height:10px;border-radius:3px;background:var(--coral);display:inline-block}
.device-card ul{list-style:none;margin-top:18px;display:grid;gap:12px}
.device-card li{position:relative;padding-left:22px;font-size:14.5px;color:var(--t-2);line-height:1.8}
.device-card li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;
  border:1px solid var(--teal);opacity:.9;
}
.device-card li b{color:var(--t-1);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(17,31,43,.55);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(51,214,192,.24)}
.faq-item.is-open{border-color:rgba(51,214,192,.34);background:rgba(17,31,43,.78)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--t-2);line-height:1.6;
  transition:color var(--dur) var(--ease);position:relative;
}
.faq-item.is-open .faq-q{color:var(--t-1)}
.faq-q::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;
  background:var(--coral);transform:scaleY(0);transform-origin:center;
  transition:transform var(--dur) var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--teal);border-radius:2px;
  transition:opacity var(--dur) var(--ease)
}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--dur) var(--ease)}
.faq-a-inner{padding:0 22px 22px 22px;font-size:14.5px;color:var(--t-2);line-height:1.85}
.faq-a-inner p+p{margin-top:10px}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:44px;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:32px;align-items:center;position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,74,.16),transparent 68%);pointer-events:none;
}
.cta-text h2{font-size:clamp(22px,2.4vw,28px);font-weight:650}
.cta-text p{margin-top:12px;font-size:14.5px;color:var(--t-2);line-height:1.85;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(9,17,24,.9);padding:64px 0 28px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,3fr) minmax(0,3fr) minmax(0,3fr);gap:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:16px;letter-spacing:.2px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col ul a{font-size:13.5px;color:var(--t-2)}
.footer-col ul a:hover{color:var(--teal)}
.footer-desc{margin-top:14px;font-size:13.5px;color:var(--t-3);line-height:1.8;max-width:320px}
.footer-contact li{font-size:13.5px;color:var(--t-2);line-height:1.7}
.footer-contact span{color:var(--t-3)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--t-3);line-height:1.7;
}
.footer-bottom .disclaimer{max-width:620px}
.site-footer .brand{display:inline-flex}
.site-footer .brand-name{font-size:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 28px}
  .hero-grid{gap:36px}
}
@media (max-width:991px){
  .page-hero{padding:40px 0 72px}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .quick-card{position:static;margin-top:8px;order:2}
  .hero-main{order:1}
  .section{padding:72px 0}
  .prep-grid{grid-template-columns:minmax(0,1fr)}
  .compare-bar{grid-template-columns:minmax(0,1fr);gap:22px}
  .compare-item{padding:0;border-left:none}
  .compare-item+.compare-item{padding-top:22px;border-top:1px solid var(--line)}
  .device-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{padding-top:64px}
  .container{padding:0 20px}
  .header-inner{height:64px;gap:12px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:11px}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .site-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    background:rgba(7,13,20,.98);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    padding:22px 20px 40px;overflow-y:auto;display:none;
    border-top:1px solid var(--line);
  }
  .site-nav.is-open{display:block}
  .nav-tabs{flex-direction:column;align-items:stretch;gap:10px;overflow:visible}
  .nav-tab{width:100%;padding:14px 18px;border-radius:var(--radius-xs);font-size:15px;text-align:left}
  .drawer-cta{display:block;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
  .drawer-cta .btn{width:100%}
  .page-hero{padding:32px 0 56px}
  .hero-main h1{font-size:clamp(26px,7vw,32px);margin-top:14px}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:14px;font-size:12.5px}
  .timeline{margin-top:32px}
  .timeline li{padding-left:50px;padding-bottom:24px}
  .timeline li::before{left:15px;top:34px}
  .tl-num{width:31px;height:31px;font-size:12px}
  .tl-body h3{font-size:16px}
  .tl-body p{font-size:14px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .panel,.device-card{padding:22px}
  .quick-card{padding:22px}
  .cta-inner{padding:26px}
  .cta-band{padding-bottom:56px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:559px){
  .badge{font-size:11.5px}
  .faq-q{padding:16px 18px;font-size:14.5px}
  .faq-a-inner{padding:0 18px 18px}
  .faq-q::before{top:14px;bottom:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;animation-iteration-count:1 !important;scroll-behavior:auto !important}
  .panel:hover,.device-card:hover,.btn-primary:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.25);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --err:#FF5470;
  --r-card:18px;
  --r-wall:14px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-float:0 10px 30px rgba(0,0,0,.45);
  --shadow-cta:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(51,214,192,.07), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(255,107,74,.06), transparent 60%);
  background-repeat:no-repeat;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--teal);text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease);}
a:hover{color:#6EEBDA;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:650;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;font-size:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--coral);color:var(--t-inv);padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip-link:focus{left:0;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  transition:background var(--ease),backdrop-filter var(--ease),border-color var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
}
.brand{display:flex;flex-direction:column;gap:2px;flex-shrink:0;}
.brand-name{
  font-size:18px;font-weight:700;color:var(--t-1);letter-spacing:.2px;
  line-height:1.3;white-space:nowrap;
}
.brand:hover .brand-name{color:#fff;}
.brand-sub{font-size:11.5px;color:var(--t-3);letter-spacing:.4px;line-height:1.4;}
.nav-tabs{
  display:flex;align-items:center;gap:8px;
  margin-left:auto;overflow-x:auto;scrollbar-width:none;
}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  font-size:13.5px;color:var(--t-2);
  border:1px solid var(--line);border-radius:999px;
  white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.nav-tab:hover{color:var(--t-1);border-color:var(--line-hover);}
.nav-tab.is-active{
  color:var(--coral);
  border-color:var(--line-accent);
  background:var(--coral-weak);
}
.nav-tab:active{transform:translateY(1px);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-cta{height:40px !important;padding:0 20px !important;font-size:13.5px !important;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);color:var(--t-1);
  align-items:center;justify-content:center;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hover);color:var(--teal);}

/* mobile drawer */
.mobile-drawer{
  display:none;
  position:fixed;inset:76px 0 0 0;z-index:79;
  background:rgba(7,13,20,.97);
  backdrop-filter:blur(10px);
  padding:24px 20px 32px;
  overflow-y:auto;
  flex-direction:column;gap:10px;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer .nav-tab{
  width:100%;height:48px;justify-content:flex-start;
  font-size:15px;padding:0 20px;border-radius:12px;
}
.mobile-drawer .drawer-cta{margin-top:16px;width:100%;height:52px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:999px;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),color var(--ease);
  text-align:center;white-space:nowrap;
}
.btn-lg{height:52px;padding:0 32px;font-size:15.5px;}
.btn-md{height:44px;padding:0 24px;font-size:14.5px;}
.btn-sm{height:36px;padding:0 18px;font-size:13px;}
.btn-primary{
  background:var(--coral);color:var(--t-inv);
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{
  color:var(--t-inv);
  filter:brightness(1.06);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,107,74,.9),0 14px 34px rgba(255,107,74,.34);
}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;color:var(--t-1);
  border-color:rgba(255,255,255,.12);
}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.link-text{
  color:var(--teal);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
}
.link-text:hover{text-decoration-thickness:2px;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 88px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.3px;color:var(--teal);
  background:var(--teal-weak);
  border:1px solid rgba(51,214,192,.24);
  border-radius:var(--r-badge);
  padding:4px 10px;
  margin-bottom:20px;
}
.hero h1{
  font-size:48px;line-height:1.22;letter-spacing:-.5px;font-weight:700;
  margin-bottom:20px;
}
.hero h1 .hl{color:var(--coral);}
.hero-sub{font-size:16.5px;line-height:1.8;color:var(--t-2);max-width:520px;}
.hero-sub span{display:block;}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap;}
.stat-pills{display:flex;gap:12px;margin-top:40px;flex-wrap:wrap;}
.stat-pill{
  display:flex;flex-direction:column;gap:2px;
  padding:14px 20px;min-width:132px;
  border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:border-color var(--ease),transform var(--ease);
}
.stat-pill:hover{border-color:var(--line-hover);transform:translateY(-2px);}
.stat-pill strong{
  font-size:22px;color:var(--t-1);font-weight:700;
  line-height:1.25;
  font-variant-numeric:tabular-nums;
}
.stat-pill span{font-size:12px;color:var(--t-3);letter-spacing:.2px;}
.hero-media{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid rgba(51,214,192,.28);
  box-shadow:0 0 0 1px rgba(51,214,192,.1),0 24px 60px rgba(0,0,0,.5);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
.hero-media:hover img{transform:scale(1.03);}
.hero-badge{
  position:absolute;left:18px;bottom:18px;
  font-size:12px;letter-spacing:.3px;color:var(--t-1);
  background:rgba(11,16,23,.72);
  border:1px solid var(--line-accent);
  border-radius:var(--r-badge);
  padding:6px 12px;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:650;
  padding-left:16px;position:relative;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;
  width:3px;border-radius:3px;background:var(--coral);
}
.section-head p{font-size:15.5px;color:var(--t-2);}

/* benefit matrix */
.benefit-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.benefit-item{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
}
.benefit-item:hover{
  border-color:var(--line-hover);
  transform:translateY(-3px);
  background:var(--bg-2);
}
.benefit-item .b-icon{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--teal-weak);
  border:1px solid rgba(51,214,192,.2);
  color:var(--teal);
  font-size:17px;
  margin-bottom:18px;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.benefit-item:hover .b-icon{color:var(--coral);border-color:var(--line-accent);background:var(--coral-weak);}
.benefit-item h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.benefit-item p{font-size:14.5px;line-height:1.8;color:var(--t-2);}
.benefit-item .b-tag{
  display:inline-block;margin-top:16px;
  font-size:12px;color:var(--teal);
  background:var(--teal-weak);
  border-radius:var(--r-badge);
  padding:3px 9px;
  letter-spacing:.3px;
}

/* compare bar */
.compare-bar{
  margin-top:32px;
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.compare-cell{
  padding:24px 26px;
  border-left:1px solid var(--line);
}
.compare-cell:first-child{border-left:0;}
.compare-cell strong{
  display:block;font-size:14.5px;color:var(--t-1);font-weight:600;
  margin-bottom:6px;
}
.compare-cell span{font-size:13.5px;color:var(--t-3);line-height:1.75;}

/* detail list */
.detail-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;}
.detail-list{border-top:1px solid var(--line);}
.detail-row{
  display:grid;grid-template-columns:52px 1fr;gap:20px;
  padding:26px 4px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.detail-row:hover{background:rgba(255,255,255,.02);}
.detail-row .d-num{
  font-size:15px;font-weight:700;color:var(--coral);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
  line-height:1.6;
}
.detail-row h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.detail-row p{font-size:14.5px;line-height:1.8;color:var(--t-2);}
.detail-row .d-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.detail-row .d-tags span{
  font-size:12px;color:var(--t-3);
  border:1px solid var(--line);
  border-radius:var(--r-badge);
  padding:2px 9px;
}
.notice-panel{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  position:sticky;top:104px;
}
.notice-panel img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-bottom:1px solid var(--line);
}
.notice-body{padding:24px;}
.notice-body h3{font-size:18px;margin-bottom:10px;}
.notice-body p{font-size:14px;line-height:1.8;color:var(--t-2);}
.notice-body ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.notice-body li{
  display:flex;gap:10px;font-size:13.5px;color:var(--t-2);line-height:1.7;
}
.notice-body li i{color:var(--teal);font-size:12px;margin-top:7px;flex-shrink:0;}

/* steps strip */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-1);overflow:hidden;
}
.step{
  padding:28px 26px;
  border-left:1px solid var(--line);
  transition:background var(--ease);
}
.step:first-child{border-left:0;}
.step:hover{background:var(--bg-2);}
.step .s-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:999px;
  font-size:13px;font-weight:700;color:var(--coral);
  background:var(--coral-weak);
  border:1px solid var(--line-accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px;font-weight:600;}
.step p{font-size:14px;line-height:1.78;color:var(--t-2);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:rgba(17,31,43,.62);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  overflow:hidden;
  position:relative;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:var(--line-hover);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--coral);opacity:0;
  transition:opacity var(--ease);
}
.faq-item.is-open{border-color:var(--line-accent);background:rgba(17,31,43,.85);}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px 22px 26px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--t-2);
  transition:color var(--ease);
}
.faq-item.is-open .faq-q{color:var(--t-1);}
.faq-q:hover{color:var(--t-1);}
.faq-arrow{
  flex-shrink:0;color:var(--t-3);font-size:13px;
  transition:transform var(--ease),color var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--coral);}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .3s cubic-bezier(.4,0,.2,1);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 26px 24px 26px;
  font-size:14.5px;line-height:1.85;color:var(--t-2);
}

/* CTA */
.cta-section{padding:88px 0 96px;}
.cta-panel{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:22px;
  padding:48px;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;
  align-items:center;
}
.cta-panel h2{font-size:29px;line-height:1.35;margin-bottom:14px;}
.cta-panel .cta-desc{font-size:15px;line-height:1.8;color:var(--t-2);}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-form input[type="text"]{
  height:48px;padding:0 18px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--t-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input[type="text"]::placeholder{color:var(--t-3);}
.cta-form input[type="text"]:focus{
  outline:none;
  border-color:rgba(51,214,192,.6);
  box-shadow:0 0 0 3px rgba(51,214,192,.12);
}
.cta-form .btn{width:100%;}
.agree{
  display:flex;align-items:flex-start;gap:8px;
  font-size:12.5px;color:var(--t-3);line-height:1.7;
}
.agree input{margin-top:3px;accent-color:var(--teal);width:14px;height:14px;flex-shrink:0;}
.form-tip{font-size:12.5px;color:var(--teal);min-height:18px;line-height:1.6;}
.form-tip.is-error{color:var(--err);}

/* Footer */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(9,16,23,.9);
  padding:64px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col .brand{margin-bottom:16px;}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--t-3);max-width:320px;}
.footer-col h4{
  font-size:13.5px;color:var(--t-1);font-weight:600;
  letter-spacing:.4px;margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13.5px;color:var(--t-2);}
.footer-col ul a:hover{color:var(--teal);}
.footer-contact li{font-size:13px;color:var(--t-3);line-height:1.75;}
.footer-contact li span{color:var(--t-2);}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t-3);
}
.disclaimer{max-width:560px;line-height:1.7;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .hero h1{font-size:40px;}
  .nav-tab{padding:0 13px;font-size:13px;}
  .header-inner{gap:16px;}
}
@media (max-width:991px){
  .nav-tabs{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:52px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;}
  .hero-media{order:2;aspect-ratio:16/10;}
  .benefit-grid{grid-template-columns:repeat(2,1fr);}
  .detail-wrap{grid-template-columns:1fr;gap:32px;}
  .notice-panel{position:static;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px;}
  .section{padding:72px 0;}
  .compare-bar{grid-template-columns:1fr;}
  .compare-cell{border-left:0;border-top:1px solid var(--line);}
  .compare-cell:first-child{border-top:0;}
  .steps{grid-template-columns:1fr;}
  .step{border-left:0;border-top:1px solid var(--line);}
  .step:first-child{border-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2{font-size:25px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{min-height:68px;}
  .mobile-drawer{inset:68px 0 0 0;}
  .brand-name{font-size:16px;}
  .hero h1{font-size:32px;line-height:1.26;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stat-pills{gap:10px;}
  .stat-pill{flex:1 1 calc(50% - 5px);min-width:0;padding:12px 16px;}
  .stat-pill strong{font-size:19px;}
  .benefit-grid{grid-template-columns:1fr;}
  .cta-panel{padding:28px;}
  .cta-panel h2{font-size:24px;}
  .faq-q{font-size:15px;padding:18px 18px 18px 20px;}
  .faq-a-inner p{padding:0 20px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:23px;}
  .detail-row{grid-template-columns:40px 1fr;gap:14px;}
}
@media (max-width:559px){
  .hero h1{font-size:29px;}
  .btn-lg{height:48px;padding:0 24px;font-size:15px;}
  .stat-pill{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .benefit-item:hover,.stat-pill:hover,.btn:hover{transform:none;}
  .hero-media:hover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.25);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --err:#FF5470;
  --r-card:18px;
  --r-media:14px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:6px;
  --tr:.22s cubic-bezier(.4,0,.2,1);
  --shadow-float:0 10px 30px rgba(0,0,0,.45);
  --shadow-cta:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans 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;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--teal);text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr),opacity var(--tr);}
a:hover{color:#6ee9d8;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:650;line-height:1.35;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ============ 倒计时条 ============ */
.countdown-bar{
  background:rgba(17,31,43,.55);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,107,74,.3);
  min-height:52px;
  display:flex;
  align-items:center;
}
.countdown-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:8px 32px;
}
.cd-label{
  font-size:13px;
  color:var(--t-2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  max-width:340px;
}
.cd-label strong{color:var(--t-1);font-weight:600;}
.cd-clock{
  display:flex;
  align-items:baseline;
  gap:4px;
  margin-left:auto;
  font-size:15px;
  letter-spacing:.5px;
}
.cd-clock span.digit{
  display:inline-block;
  min-width:2ch;
  text-align:center;
  color:var(--coral);
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.cd-clock span.sep{color:var(--t-3);}
.cd-link{font-size:13px;color:var(--teal);white-space:nowrap;border-bottom:1px solid transparent;}
.cd-link:hover{border-bottom-color:var(--teal);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color var(--tr),border-color var(--tr),backdrop-filter var(--tr);
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;flex-direction:column;gap:2px;flex:0 0 auto;}
.brand-name{font-size:18px;font-weight:700;color:var(--t-1);letter-spacing:.2px;}
.brand-sub{font-size:11px;color:var(--t-3);letter-spacing:.4px;}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  margin-left:12px;
  padding:4px 0;
}
.nav-tabs::-webkit-scrollbar{display:none;}
.nav-tab{
  flex:0 0 auto;
  padding:8px 16px;
  font-size:14px;
  color:var(--t-2);
  border:1px solid transparent;
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:color var(--tr),border-color var(--tr),background-color var(--tr);
}
.nav-tab:hover{color:var(--t-1);border-color:var(--line-hover);}
.nav-tab.is-active{
  color:var(--coral);
  background:var(--coral-weak);
  border-color:rgba(255,107,74,.5);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-weight:600;
  text-align:center;
  white-space:nowrap;
  transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),color var(--tr),border-color var(--tr),opacity var(--tr);
}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-md{height:44px;padding:0 22px;font-size:15px;}
.btn-sm{height:36px;padding:0 16px;font-size:13px;}
.btn-primary{
  background:var(--coral);
  color:var(--t-inv);
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{
  background:#ff7d5f;
  color:var(--t-inv);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,107,74,.9),0 14px 32px rgba(255,107,74,.32);
}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,107,74,.7),0 6px 16px rgba(255,107,74,.22);}
.btn-primary:disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;
  color:var(--t-1);
  border-color:rgba(255,255,255,.12);
}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}
.text-link{font-size:14px;color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.text-link:hover{text-decoration-thickness:2px;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.3px;
  padding:3px 9px;
  border-radius:var(--r-badge);
  line-height:1.6;
}
.badge-coral{background:var(--coral-weak);color:#ff9c85;}
.badge-teal{background:var(--teal-weak);color:var(--teal);}
.badge-warn{background:rgba(245,181,68,.14);color:var(--warn);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:30px;
  font-weight:650;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  bottom:8px;
  width:3px;
  border-radius:2px;
  background:var(--coral);
}
.section-lead{font-size:15px;color:var(--t-3);max-width:520px;margin-top:8px;}

/* ============ Hero ============ */
.hero{padding:64px 0 96px;position:relative;overflow:hidden;}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(900px 420px at 78% 12%,rgba(51,214,192,.10),transparent 65%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.6px;
  color:var(--teal);
  background:var(--teal-weak);
  border:1px solid rgba(51,214,192,.24);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px rgba(51,214,192,.9);}
.hero h1{
  font-size:48px;
  line-height:1.22;
  letter-spacing:-.5px;
  font-weight:700;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--coral);}
.hero-sub{
  font-size:17px;
  color:var(--t-2);
  max-width:520px;
  margin-bottom:32px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px;}
.pill-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  max-width:560px;
}
.pill{
  background:rgba(22,41,53,.45);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--r-media);
  padding:14px 16px;
}
.pill strong{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--t-1);
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.pill span{display:block;font-size:12px;color:var(--t-3);margin-top:4px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid rgba(51,214,192,.35);
  box-shadow:0 0 60px rgba(51,214,192,.12);
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
.hero-visual:hover .frame img{transform:scale(1.03);}
.hero-visual .frame .badge{
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(7,13,20,.72);
  color:var(--t-1);
  border:1px solid rgba(255,107,74,.45);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  padding:5px 12px;
}

/* ============ 活动须知（编号条目） ============ */
.notice-list{
  border-top:1px solid var(--line);
}
.notice-item{
  display:grid;
  grid-template-columns:64px 1fr auto;
  align-items:start;
  gap:24px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:border-color var(--tr);
}
.notice-item:hover{border-color:var(--line-hover);}
.notice-item .idx{
  font-size:15px;
  font-weight:700;
  color:var(--coral);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
  letter-spacing:.5px;
}
.notice-item h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.notice-item p{font-size:15px;color:var(--t-2);max-width:720px;}
.notice-item .tag{
  font-size:12px;
  color:var(--t-3);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:4px 12px;
  white-space:nowrap;
  align-self:center;
}

/* ============ 活动大卡流 ============ */
.event-list{display:flex;flex-direction:column;gap:24px;}
.event-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  padding:24px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color var(--tr),transform var(--tr),background-color var(--tr);
}
.event-row:hover{
  border-color:var(--line-hover);
  transform:translateY(-3px);
  background:var(--bg-2);
}
.event-media{
  position:relative;
  border-radius:var(--r-media);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.02) 0 8px,transparent 8px 16px),
    var(--bg-2);
}
.event-media img{width:100%;height:100%;object-fit:cover;transition:filter var(--tr);}
.event-row:hover .event-media img{filter:brightness(1.08);}
.event-media .badge{position:absolute;left:12px;top:12px;}
.event-body{display:flex;flex-direction:column;gap:12px;justify-content:center;min-width:0;}
.event-body h3{font-size:20px;font-weight:600;}
.event-body>p{font-size:15px;color:var(--t-2);}
.event-meta{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.event-meta li{
  font-size:13px;
  color:var(--t-3);
  display:flex;
  align-items:center;
  gap:8px;
}
.event-meta li::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--teal);
  flex:0 0 auto;
}
.event-meta li b{color:var(--t-2);font-weight:500;}
.event-body .text-link{margin-top:4px;align-self:flex-start;}

/* ============ 报名 CTA ============ */
.cta-panel{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:24px;
  padding:48px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.cta-panel h2{font-size:30px;margin-bottom:14px;font-weight:650;}
.cta-panel p{font-size:15px;color:var(--t-2);max-width:460px;}
.cta-panel p + p{margin-top:6px;color:var(--t-3);font-size:14px;}
.join-form{display:flex;flex-direction:column;gap:14px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--t-3);
  margin-bottom:6px;
}
.field input{
  width:100%;
  height:48px;
  padding:0 16px;
  font-size:15px;
  color:var(--t-1);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.field input::placeholder{color:#4d6172;}
.field input:hover{border-color:rgba(255,255,255,.16);}
.field input:focus{
  outline:none;
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(51,214,192,.14);
  background:var(--bg-2);
}
.form-hint{font-size:12px;color:var(--t-3);}
.form-status{font-size:13px;color:var(--teal);min-height:20px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;}
.faq-item{
  background:rgba(22,41,53,.42);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color var(--tr),background-color var(--tr);
}
.faq-item:hover{border-color:var(--line-hover);}
.faq-item.is-open{border-color:rgba(255,107,74,.42);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--t-2);
  position:relative;
  transition:color var(--tr);
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--coral);
  opacity:0;
  transition:opacity var(--tr);
}
.faq-item.is-open .faq-q{color:var(--t-1);}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q .arrow{
  flex:0 0 auto;
  width:16px;height:16px;
  border-right:2px solid var(--t-3);
  border-bottom:2px solid var(--t-3);
  transform:rotate(45deg);
  transition:transform var(--tr),border-color var(--tr);
  margin-right:4px;
}
.faq-item.is-open .faq-q .arrow{transform:rotate(-135deg);border-color:var(--coral);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s cubic-bezier(.4,0,.2,1);
}
.faq-a-inner{padding:0 24px 22px;font-size:15px;color:var(--t-2);}
.faq-a-inner ul{margin-top:8px;display:flex;flex-direction:column;gap:6px;}
.faq-a-inner li{position:relative;padding-left:16px;font-size:14px;color:var(--t-3);}
.faq-a-inner li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:5px;height:5px;border-radius:50%;
  background:var(--teal);
}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:64px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-col h4{font-size:14px;color:var(--t-1);margin-bottom:16px;font-weight:600;letter-spacing:.3px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--t-2);}
.footer-col ul a:hover{color:var(--teal);}
.footer-desc{font-size:13px;color:var(--t-3);line-height:1.8;margin-top:14px;max-width:300px;}
.footer-contact li{font-size:13px;color:var(--t-3);}
.footer-contact li span{color:#4d6172;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:12px;
  color:var(--t-3);
}
.footer-bottom .disclaimer{max-width:620px;}

/* ============ 移动端菜单 ============ */
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(17,31,43,.6);
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:11px;right:11px;
  height:2px;
  background:var(--t-1);
  border-radius:2px;
  transition:transform var(--tr),opacity var(--tr);
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:24px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.mobile-menu{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(7,13,20,.97);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:16px 0 24px;
}
.mobile-menu.is-open{display:block;}
.mobile-menu .container{display:flex;flex-direction:column;gap:8px;}
.mobile-menu a.m-link{
  padding:12px 16px;
  border-radius:12px;
  border:1px solid var(--line);
  font-size:15px;
  color:var(--t-2);
}
.mobile-menu a.m-link:hover{border-color:var(--line-hover);color:var(--t-1);}
.mobile-menu a.m-link.is-active{
  color:var(--coral);
  background:var(--coral-weak);
  border-color:rgba(255,107,74,.5);
}
.mobile-menu .btn{margin-top:12px;width:100%;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:42px;}
  .cta-panel{padding:40px;gap:32px;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .countdown-inner{padding:8px 24px;gap:16px;}
  .cd-label{max-width:180px;}
  .nav-tabs{display:none;}
  .nav-toggle{display:block;}
  .header-cta{display:none;}
  .hero{padding:40px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .hero-visual{order:2;}
  .hero-sub{max-width:100%;}
  .pill-row{max-width:100%;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .event-row{grid-template-columns:1fr;gap:20px;padding:20px;}
  .event-media{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:26px;}
}
@media (max-width:767px){
  .countdown-bar{min-height:auto;}
  .countdown-inner{flex-wrap:wrap;gap:6px 12px;padding:10px 20px;}
  .cd-label{max-width:100%;flex:1 1 100%;font-size:12px;}
  .cd-clock{margin-left:0;font-size:14px;}
  .cd-link{margin-left:auto;font-size:12px;}
  .header-inner{min-height:66px;gap:12px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10px;}
  .notice-item{grid-template-columns:44px 1fr;gap:12px;}
  .notice-item .tag{display:none;}
  .pill strong{font-size:19px;}
}
@media (max-width:559px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:28px 0 56px;}
  .hero h1{font-size:30px;letter-spacing:-.3px;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .pill-row{grid-template-columns:1fr;gap:10px;}
  .section-head h2{font-size:23px;}
  .section-head .btn{width:100%;}
  .event-body h3{font-size:18px;}
  .cta-panel{padding:24px;border-radius:18px;}
  .cta-panel h2{font-size:23px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .btn-lg{height:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .event-row:hover,.btn:hover{transform:none !important;}
}

/* roulang page: category4 */
:root{
  --bg-0:#070D14;
  --bg-1:#0C1620;
  --bg-2:#111F2B;
  --bg-3:rgba(22,41,53,.25);
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(51,214,192,.38);
  --line-accent:rgba(255,107,74,.45);
  --coral:#FF6B4A;
  --teal:#33D6C0;
  --coral-weak:rgba(255,107,74,.14);
  --teal-weak:rgba(51,214,192,.12);
  --t-1:#E8EEF4;
  --t-2:#9FB1C0;
  --t-3:#64798A;
  --t-inv:#0B1017;
  --warn:#F5B544;
  --danger:#FF5470;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-chip:999px;
  --ease:cubic-bezier(.4,0,.2,1);
  --header-h:76px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg-0);
  color:var(--t-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  min-height:100vh;
  padding-top:var(--header-h);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:radial-gradient(900px 420px at 15% -10%,rgba(51,214,192,.10),transparent 70%),
             radial-gradient(720px 380px at 92% 0%,rgba(255,107,74,.08),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--teal);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)}
a:hover{color:#fff}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{color:var(--t-1);font-weight:700;line-height:1.28}
p{word-break:break-word}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
::selection{background:var(--coral-weak);color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-chip);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  cursor:pointer;
}
.btn-lg{height:52px;padding:0 30px}
.btn-md{height:44px;padding:0 22px}
.btn-sm{height:36px;padding:0 18px;font-size:13px}
.btn-primary{
  background:var(--coral);color:var(--t-inv);
  box-shadow:0 0 0 1px rgba(255,107,74,.8),0 10px 26px rgba(255,107,74,.26);
}
.btn-primary:hover{background:#ff7f60;color:var(--t-inv);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,107,74,.95),0 14px 34px rgba(255,107,74,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,107,74,.8),0 6px 16px rgba(255,107,74,.22)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.12);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--line-hover);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;box-shadow:none}
.text-link{color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.text-link:hover{color:#fff;text-decoration-thickness:2px}
.text-link:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:var(--header-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 32px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;flex-direction:column;gap:2px;flex-shrink:0;color:var(--t-1)}
.brand:hover .brand-name{color:var(--teal)}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--t-1);transition:color .22s var(--ease);line-height:1.3}
.brand-sub{font-size:11px;color:var(--t-3);letter-spacing:.4px;line-height:1.4}
.nav-tabs{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--radius-chip);
  font-size:14px;color:var(--t-2);border:1px solid var(--line);
  white-space:nowrap;line-height:1.4;
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.nav-tab:hover{color:var(--t-1);border-color:var(--line-hover)}
.nav-tab:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.nav-tab.is-active{color:var(--t-1);border-color:var(--line-accent);background:var(--coral-weak)}
.header-cta{flex-shrink:0}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  flex-direction:column;gap:5px;flex-shrink:0;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.menu-toggle:hover{border-color:var(--line-hover)}
.menu-toggle:focus-visible{outline:2px solid var(--teal);outline-offset:2px}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(7,13,20,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transform:translateX(100%);
  opacity:0;visibility:hidden;
  transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s var(--ease);
  display:flex;
}
.mobile-drawer.is-open{transform:translateX(0);opacity:1;visibility:visible}
.drawer-inner{
  width:100%;max-width:420px;margin-left:auto;
  padding:24px 24px 32px;
  display:flex;flex-direction:column;gap:24px;
  height:100%;overflow-y:auto;
  border-left:1px solid var(--line);
  background:var(--bg-1);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-head .brand-name{font-size:17px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  color:var(--t-1);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--line-hover)}
.drawer-close:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.drawer-nav{display:flex;flex-direction:column;gap:10px}
.drawer-nav a{
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);
  color:var(--t-2);font-size:15px;
}
.drawer-nav a:hover{color:var(--t-1);border-color:var(--line-hover)}
.drawer-nav a.is-active{color:var(--t-1);border-color:var(--line-accent);background:var(--coral-weak)}
.drawer-cta{width:100%;margin-top:auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 60px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(7,13,20,.80) 0%,rgba(7,13,20,.94) 62%,rgba(7,13,20,.99) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:50%;top:-120px;width:760px;height:320px;
  transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(51,214,192,.16),transparent 78%);
  pointer-events:none;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--teal)}
.crumbs .sep{color:rgba(255,255,255,.18)}
.crumbs .current{color:var(--t-2)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:6px;
  background:var(--teal-weak);border:1px solid rgba(51,214,192,.28);
  color:var(--teal);font-size:12px;font-weight:500;letter-spacing:.3px;
  margin-bottom:20px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(51,214,192,.16)}
.hero h1{
  font-size:36px;font-weight:700;letter-spacing:-.5px;line-height:1.24;
  max-width:820px;color:var(--t-1);
}
.hero h1 .hl{color:var(--coral)}
.hero-lead{
  margin-top:18px;max-width:660px;font-size:16px;line-height:1.85;color:var(--t-2);
}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:24px;font-size:13px;color:var(--t-3);
}
.hero-meta strong{color:var(--t-1);font-weight:650}
.hero-meta .divider{width:1px;height:12px;background:rgba(255,255,255,.14)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ---------- 主体 ---------- */
.help-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:48px;
  padding:64px 0 0;
  align-items:start;
}
.help-side{position:relative}
.side-card{
  position:sticky;top:calc(var(--header-h) + 24px);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:18px;
}
.side-cover{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--bg-2);margin-bottom:16px;
}
.side-cover img{width:100%;height:100%;object-fit:cover}
.side-title{
  font-size:12px;font-weight:500;letter-spacing:.6px;color:var(--t-3);
  text-transform:none;margin-bottom:10px;
}
.side-anchors{display:flex;flex-direction:column;gap:2px}
.side-anchor{
  display:block;padding:10px 14px;border-left:2px solid transparent;
  border-radius:8px;color:var(--t-2);font-size:14px;line-height:1.5;
  transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);
}
.side-anchor:hover{color:var(--t-1);background:rgba(255,255,255,.03)}
.side-anchor:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.side-anchor.is-active{color:var(--t-1);border-left-color:var(--coral);background:var(--coral-weak)}
.side-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12px;line-height:1.7;color:var(--t-3);
}

.notice{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:14px;
  background:rgba(245,181,68,.07);
  border:1px solid rgba(245,181,68,.26);
  color:var(--t-2);font-size:14px;line-height:1.78;
  margin-bottom:40px;
}
.notice .notice-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;margin-top:2px;
  background:rgba(245,181,68,.16);color:var(--warn);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;line-height:1;
}
.notice strong{color:#FFD79A;font-weight:600}

.qa-group{padding-top:8px}
.qa-group + .qa-group{margin-top:52px;padding-top:44px;border-top:1px solid var(--line)}
.qa-group h2{
  position:relative;font-size:24px;font-weight:650;letter-spacing:-.2px;
  padding-left:16px;margin-bottom:10px;
}
.qa-group h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--coral);
}
.qa-group-desc{font-size:14px;color:var(--t-3);line-height:1.8;margin-bottom:22px;padding-left:16px}
.qa-list{display:flex;flex-direction:column;gap:12px}

.qa-item{
  position:relative;
  background:rgba(17,31,43,.55);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.qa-item:hover{border-color:rgba(51,214,192,.26)}
.qa-item.is-open{border-color:var(--line-accent);background:rgba(17,31,43,.82)}
.qa-item.is-open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--coral);
}
.qa-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 22px;color:var(--t-2);
  font-size:16px;font-weight:500;line-height:1.6;
  transition:color .22s var(--ease);
}
.qa-item.is-open .qa-q{color:var(--t-1)}
.qa-q:hover{color:var(--t-1)}
.qa-q:focus-visible{outline:2px solid var(--teal);outline-offset:-2px}
.qa-icon{
  flex-shrink:0;width:20px;height:20px;position:relative;
  display:flex;align-items:center;justify-content:center;
}
.qa-icon::before{
  content:"";width:8px;height:8px;border-right:2px solid var(--t-3);border-bottom:2px solid var(--t-3);
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.qa-item.is-open .qa-icon::before{border-color:var(--coral);transform:rotate(-135deg) translate(-2px,-2px)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.qa-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t-2)}
.qa-a-inner p + p{margin-top:12px}
.qa-a-inner ul{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.qa-a-inner li{position:relative;padding-left:16px}
.qa-a-inner li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--teal);opacity:.75;
}
.qa-a-inner strong{color:var(--t-1);font-weight:600}
.qa-a-inner .warn-text{color:#FFB0A0}

/* ---------- 次级 CTA ---------- */
.cta-bar{
  margin:76px 0 96px;
  padding:36px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
}
.cta-bar h2{font-size:22px;font-weight:650;letter-spacing:-.2px;margin-bottom:8px}
.cta-bar p{font-size:14px;line-height:1.8;color:var(--t-3);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:56px 0 28px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t-1);margin-bottom:14px;letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--t-2)}
.footer-col a:hover{color:var(--teal)}
.footer-col a:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}
.footer-desc{font-size:13px;line-height:1.85;color:var(--t-3);margin-top:14px;max-width:320px}
.footer-contact li{font-size:13px;color:var(--t-2);line-height:1.7}
.footer-contact span{color:var(--t-3)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding-top:22px;font-size:12px;color:var(--t-3);line-height:1.7;
}
.footer-bottom .disclaimer{max-width:640px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container,.header-inner{padding-left:28px;padding-right:28px}
}
@media (max-width:991px){
  .nav-tabs{display:none}
  .header-cta{margin-left:auto}
  .menu-toggle{display:flex}
  .help-layout{grid-template-columns:1fr;gap:32px;padding-top:48px}
  .side-card{position:static;padding:16px}
  .side-cover{max-width:420px}
  .side-anchors{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none}
  .side-anchors::-webkit-scrollbar{display:none}
  .side-anchor{
    flex:0 0 auto;padding:8px 16px;border-radius:var(--radius-chip);
    border:1px solid var(--line);border-left:1px solid var(--line);
    font-size:13px;white-space:nowrap;
  }
  .side-anchor.is-active{border-color:var(--line-accent);background:var(--coral-weak)}
  .side-note{margin-top:14px;padding-top:14px}
  .qa-group + .qa-group{margin-top:40px;padding-top:34px}
  .hero{padding:52px 0 48px}
  .cta-bar{grid-template-columns:1fr;gap:22px;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container,.header-inner{padding-left:20px;padding-right:20px}
  .hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .qa-group h2{font-size:21px}
  .qa-q{font-size:15px;padding:16px 18px;gap:12px}
  .qa-a-inner{padding:0 18px 18px;font-size:14.5px}
  .cta-bar{margin:56px 0 72px}
  .cta-bar h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:44px 0 24px}
}
@media (max-width:559px){
  .header-cta{display:none}
  .hero h1{font-size:26px;letter-spacing:-.3px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .qa-group h2{font-size:20px}
  .hero-meta{gap:8px 14px;font-size:12.5px}
  .hero-meta .divider{display:none}
  .side-cover{max-width:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .btn:hover{transform:none}
  .qa-item:hover{transform:none}
}