/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --bg-deep:#07080A;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-media:14px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --glow:0 8px 28px rgba(0,217,165,.28);
  --container:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:76px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
svg{display:block;}
::selection{background:rgba(0,217,165,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:104px 0;position:relative;}
.section--alt{background:var(--bg-alt);}
.section--tight{padding:88px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--primary);border-radius:2px;}
.section-title{
  font-size:36px;line-height:1.2;font-weight:700;letter-spacing:-.02em;margin:0;
}
.section-desc{color:var(--text-2);font-size:15px;margin-top:12px;max-width:640px;line-height:1.75;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:48px;flex-wrap:wrap;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--text-2);
  font-size:14px;font-weight:600;transition:color .16s var(--ease);
}
.link-more .arrow{transition:transform .16s var(--ease);display:inline-block;}
.link-more:hover{color:var(--primary);}
.link-more:hover .arrow{transform:translateX(3px);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .16s var(--ease),background-color .16s var(--ease),
             border-color .16s var(--ease),color .16s var(--ease),box-shadow .16s var(--ease),filter .16s var(--ease);
  white-space:nowrap;border:1px solid transparent;
}
.btn-primary{background:var(--primary);color:#06110D;box-shadow:var(--glow);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 34px rgba(0,217,165,.36);}
.btn-primary:active{background:var(--primary-deep);transform:translateY(1px);box-shadow:0 4px 16px rgba(0,217,165,.24);}
.btn-ghost{background:transparent;border-color:var(--line-hi);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);color:var(--text-2);
}
.badge-primary{background:rgba(0,217,165,.12);color:var(--primary);}
.badge-accent{background:rgba(255,122,69,.14);color:var(--accent);}
.badge-soft{background:rgba(255,255,255,.05);color:var(--text-2);}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,11,14,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:var(--header-h);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary) 0%,#0E8F74 100%);
  display:grid;place-items:center;color:#06110D;font-weight:800;font-size:15px;
  box-shadow:0 6px 18px rgba(0,217,165,.25);
}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--text-1);white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--text-3);margin-left:2px;letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:14.5px;font-weight:500;color:var(--text-2);
  border-radius:8px;transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);opacity:.9;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  transition:border-color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hi);}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-1);border-radius:2px;}
.nav-toggle span + span{margin-top:5px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,5,7,.66);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:100;
  background:var(--bg-alt);box-shadow:var(--sh-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .24s var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-title{font-size:14px;color:var(--text-3);letter-spacing:.06em;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);}
.drawer-close:hover{border-color:var(--line-hi);color:var(--text-1);}
.drawer .nav-link{
  display:flex;width:100%;min-height:52px;padding:0 14px;
  border-bottom:1px solid var(--line);border-radius:0;font-size:15px;
}
.drawer .nav-link::after{display:none;}
.drawer .nav-link.is-active{color:var(--primary);}
.drawer .btn{margin-top:20px;width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:calc(var(--header-h) + 72px) 0 104px;
  background:var(--bg-base);
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  opacity:.20;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 520px at 82% 12%, rgba(0,217,165,.16) 0%, rgba(0,217,165,0) 62%),
    radial-gradient(520px 420px at 6% 88%, rgba(255,122,69,.09) 0%, rgba(255,122,69,0) 66%),
    linear-gradient(180deg, rgba(10,11,14,.6) 0%, rgba(10,11,14,.92) 62%, var(--bg-base) 100%);
}
.hero-grid{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(70% 62% at 50% 34%,#000 0%,transparent 100%);
  mask-image:radial-gradient(70% 62% at 50% 34%,#000 0%,transparent 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;
  min-height:480px;
}
.hero-copy{grid-column:span 7;}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(0,217,165,.10);border:1px solid rgba(0,217,165,.22);
  color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;
  margin-bottom:24px;
}
.hero-pill .dot-live{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(0,217,165,.16);}
.hero-title{
  font-size:clamp(32px,5vw,60px);
  line-height:1.12;font-weight:800;letter-spacing:-.02em;
  margin:0 0 20px;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(100deg,var(--primary) 0%,#7CF2D2 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:17px;color:var(--text-2);line-height:1.75;max-width:560px;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 26px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.trust-item svg{color:var(--primary);flex-shrink:0;}
.hero-visual{grid-column:span 5;position:relative;}
.hero-frame{
  position:relative;border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:var(--surface);
}
.hero-frame img{width:100%;height:420px;object-fit:cover;}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,14,0) 42%,rgba(10,11,14,.72) 100%);
}
.hero-chip{
  position:absolute;left:-22px;bottom:38px;z-index:3;
  background:var(--surface);border:1px solid var(--line-hi);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:16px 18px;max-width:250px;
}
.hero-chip-label{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-bottom:6px;}
.hero-chip-value{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5;}
.hero-chip-value b{color:var(--primary);font-weight:700;}
.hero-lv{
  position:absolute;right:16px;top:16px;z-index:3;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(255,122,69,.16);border:1px solid rgba(255,122,69,.3);
  color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.04em;
}

/* 首屏进场 */
@keyframes riseIn{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}
.hero-copy > *{animation:riseIn .4s var(--ease) both;}
.hero-copy > *:nth-child(1){animation-delay:.04s;}
.hero-copy > *:nth-child(2){animation-delay:.10s;}
.hero-copy > *:nth-child(3){animation-delay:.16s;}
.hero-copy > *:nth-child(4){animation-delay:.22s;}
.hero-copy > *:nth-child(5){animation-delay:.28s;}
.hero-visual{animation:riseIn .4s var(--ease) .34s both;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);background:var(--surface-hi);}
.card-media{position:relative;overflow:hidden;border-radius:var(--r-media);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,14,0) 46%,rgba(10,11,14,.6) 100%);
}
.card-badge{position:absolute;left:12px;top:12px;z-index:2;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;font-weight:600;line-height:1.4;letter-spacing:-.01em;}
.card-desc{font-size:14.5px;color:var(--text-2);line-height:1.7;}
.card-meta{
  display:flex;align-items:center;gap:10px;margin-top:auto;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-meta .arrow{margin-left:auto;color:var(--text-3);transition:transform .16s var(--ease),color .16s var(--ease);}
.card:hover .card-meta .arrow{transform:translateX(3px);color:var(--primary);}

.card--lead{grid-column:span 6;}
.card--lead .card-media{height:280px;margin:12px 12px 0;}
.card--lead .card-title{font-size:23px;}
.card--lead .card-body{padding:20px 24px 24px;}
.card--half{grid-column:span 3;}
.card--half .card-media{height:150px;margin:12px 12px 0;}
.card--half .card-title{font-size:16.5px;}
.card--quarter{grid-column:span 3;}
.card--quarter .card-media{height:150px;margin:12px 12px 0;}

/* ============ 保障条 ============ */
.guard-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.guard-item{
  padding:40px 28px;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;
}
.guard-item:last-child{border-right:0;}
.guard-icon{color:var(--primary);}
.guard-title{font-size:16px;font-weight:600;letter-spacing:-.01em;}
.guard-text{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);}
.step-num{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
}
.step-num::after{content:"";flex:1;height:1px;background:var(--line);}
.step-title{font-size:19px;font-weight:600;margin-bottom:10px;letter-spacing:-.01em;}
.step-text{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.step-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.step-list li{position:relative;padding-left:16px;font-size:13.5px;color:var(--text-3);line-height:1.7;}
.step-list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:var(--primary);border-radius:1px;}

/* ============ 评价轮播 ============ */
.reviews-wrap{position:relative;}
.reviews-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;scrollbar-width:none;
}
.reviews-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 48px) / 3);
  scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.review-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);}
.stars{display:flex;gap:3px;color:var(--accent);}
.review-text{font-size:14.5px;color:var(--text-2);line-height:1.8;flex:1;}
.review-author{display:flex;align-items:center;gap:12px;padding-top:14px;border-top:1px solid var(--line);}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;font-size:14px;font-weight:700;color:#06110D;
  background:linear-gradient(140deg,var(--primary) 0%,#0E8F74 100%);
}
.avatar.alt{background:linear-gradient(140deg,#FF9A6B 0%,#C8501E 100%);color:#160B05;}
.author-name{font-size:14px;font-weight:600;}
.author-role{font-size:12.5px;color:var(--text-3);}
.reviews-nav{display:flex;gap:10px;}
.carousel-btn{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line-hi);
  display:grid;place-items:center;color:var(--text-2);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),background-color .16s var(--ease);
}
.carousel-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);background:rgba(0,217,165,.07);}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:24px;}
.news-lead{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.news-lead:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);}
.news-lead-media{overflow:hidden;border-radius:var(--r-media);margin:12px 12px 0;}
.news-lead-media img{width:100%;height:236px;object-fit:cover;transition:transform .24s var(--ease);}
.news-lead:hover .news-lead-media img{transform:scale(1.04);}
.news-lead-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:12px;}
.news-lead-body h3{font-size:21px;font-weight:600;line-height:1.45;letter-spacing:-.01em;}
.news-summary{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-top:4px;}
.dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block;}
.news-rows{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);overflow:hidden;box-shadow:var(--sh-1);}
.news-row{
  display:block;padding:18px 22px;min-height:56px;border-bottom:1px solid var(--line);
  transition:background-color .16s var(--ease);
}
.news-row:last-child{border-bottom:0;}
.news-row:hover{background:var(--surface-hi);}
.news-row-top{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.news-row h3{font-size:15.5px;font-weight:600;line-height:1.5;letter-spacing:-.01em;}
.news-row p{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:64px 24px;text-align:center;
  background:var(--surface);border:1px dashed var(--line-hi);border-radius:var(--r-card);
}
.empty-state svg{color:var(--text-3);}
.empty-title{font-size:15px;color:var(--text-1);font-weight:600;}
.empty-desc{font-size:13px;color:var(--text-3);max-width:360px;line-height:1.7;}
.empty-state .btn{margin-top:8px;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:17px;font-weight:600;letter-spacing:-.01em;
  transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  width:34px;height:34px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--line-hi);display:grid;place-items:center;color:var(--text-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--primary);color:var(--primary);}
.faq-item[open] summary{color:var(--text-1);}
.faq-answer{
  padding:0 4px 24px;font-size:15px;color:var(--text-2);line-height:1.85;max-width:780px;
}
.faq-answer p + p{margin-top:12px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--bg-alt);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:820px;height:420px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(0,217,165,.16),rgba(0,217,165,0));
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-copy{max-width:640px;}
.cta-title{font-size:34px;font-weight:700;line-height:1.25;letter-spacing:-.02em;margin-bottom:12px;}
.cta-text{font-size:15px;color:var(--text-2);line-height:1.8;}
.cta-note{
  position:relative;z-index:2;margin-top:28px;font-size:13px;color:var(--text-3);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding-top:72px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:300px;}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-3);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em;}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-list a,.footer-list span{font-size:13.5px;color:var(--text-2);transition:color .16s var(--ease),transform .16s var(--ease);display:inline-block;}
.footer-list a:hover{color:var(--primary);transform:translateX(2px);}
.footer-list .muted{color:var(--text-3);}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .card--lead{grid-column:span 6;}
  .card--half{grid-column:span 3;}
  .review-card{flex:0 0 calc((100% - 48px) / 3);}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:80px 0;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-copy{grid-column:span 1;}
  .hero-visual{grid-column:span 1;}
  .hero-frame img{height:320px;}
  .hero-chip{left:16px;bottom:16px;}
  .card--lead,.card--half,.card--quarter{grid-column:span 6;}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .guard-item:nth-child(2){border-right:0;}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-bottom:1px solid var(--line);}
  .steps{grid-template-columns:1fr;}
  .review-card{flex:0 0 calc((100% - 24px) / 2);}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-title{font-size:26px;}
  .cta-title{font-size:26px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:calc(var(--header-h) + 48px) 0 72px;}
  .hero-title{font-size:clamp(28px,8vw,38px);}
  .hero-sub{font-size:15.5px;margin-bottom:26px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .brand-sub{display:none;}
  .card--lead,.card--half,.card--quarter{grid-column:span 12;}
  .card--lead .card-media{height:200px;}
  .card--half .card-media,.card--quarter .card-media{height:180px;}
  .guard-grid{grid-template-columns:1fr;}
  .guard-item{border-right:0;border-bottom:1px solid var(--line);padding:28px 20px;}
  .guard-item:last-child{border-bottom:0;}
  .review-card{flex:0 0 82%;}
  .news-lead-media img{height:190px;}
  .news-lead-body{padding:18px;}
  .news-lead-body h3{font-size:18px;}
  .faq-item summary{font-size:16px;padding:18px 2px;}
  .cta-band{padding:64px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-inner .btn{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .logo-wordmark{font-size:15px;}
}
@media (max-width:479px){
  .hero-frame img{height:240px;}
  .hero-chip{position:static;margin-top:14px;max-width:none;}
  .review-card{flex:0 0 88%;}
  .section-title{font-size:23px;}
  .cta-title{font-size:23px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .card:hover,.step:hover,.review-card:hover,.news-lead:hover{transform:none;}
}

/* roulang page: article */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --bg-deep:#07080A;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-media:14px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --container:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
::selection{background:rgba(0,217,165,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,11,14,.92);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.4);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#06110D;font-weight:800;font-size:16px;line-height:1;
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--text-1)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:9px 12px;
  font-size:14.5px;color:var(--text-2);border-radius:var(--r-btn);
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{height:2px;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
  transition:all .16s var(--ease);
}
.btn-primary{background:var(--primary);color:#06110D;box-shadow:0 8px 28px rgba(0,217,165,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 34px rgba(0,217,165,.36)}
.btn-primary:active{background:var(--primary-deep);transform:translateY(1px)}
.btn-ghost{border-color:var(--line-hi);color:var(--text-1);background:transparent}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-text{color:var(--text-2);padding:8px 0;font-weight:500}
.btn-text svg{transition:transform .16s var(--ease)}
.btn-text:hover{color:var(--primary)}
.btn-text:hover svg{transform:translateX(3px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1);
}
.menu-toggle:hover{border-color:var(--line-hi)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:80;
  background:var(--bg-alt);border-left:1px solid var(--line);box-shadow:var(--sh-2);
  padding:20px 20px 28px;display:flex;flex-direction:column;
  transform:translateX(101%);transition:transform .3s var(--ease);overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:14px;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase}
.drawer-close{width:36px;height:36px;border-radius:var(--r-btn);border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2)}
.drawer-close:hover{border-color:var(--line-hi);color:var(--text-1)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;
  border-bottom:1px solid var(--line);color:var(--text-2);font-size:15.5px;
  transition:color .16s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary)}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- article head ---------- */
.article-head{
  padding:132px 0 40px;
  background:
    linear-gradient(180deg,rgba(10,11,14,.62) 0%,rgba(10,11,14,.90) 62%,rgba(10,11,14,.98) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-primary{background:rgba(0,217,165,.12);color:var(--primary)}
.badge-accent{background:rgba(255,122,69,.14);color:var(--accent)}
.badge-muted{background:rgba(255,255,255,.06);color:var(--text-2)}
.article-head h1{
  font-size:clamp(28px,4.2vw,48px);font-weight:800;line-height:1.2;
  letter-spacing:-.02em;margin:18px 0 18px;max-width:920px;
}
.article-lead{font-size:15.5px;color:var(--text-2);max-width:760px;line-height:1.85}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13px;color:var(--text-3)}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);opacity:.8}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}

/* ---------- article body ---------- */
.article-wrap{padding:56px 0 0}
.article-body{
  max-width:760px;margin:0 auto;font-size:16.5px;line-height:1.9;color:#DCE2EA;
}
.article-cover{margin:0 0 36px}
.article-cover img{
  width:100%;aspect-ratio:14/6;object-fit:cover;
  border-radius:var(--r-media);border:1px solid var(--line);background:var(--surface);
}
.article-cover figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center}
.article-body p{margin:0 0 24px}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;
  letter-spacing:-.01em;margin:46px 0 18px;padding-left:16px;color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:32px 0 14px;color:var(--text-1)}
.article-body ul{margin:0 0 24px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.article-body ol{margin:0 0 24px;counter-reset:bodyitem}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:10px;counter-increment:bodyitem}
.article-body ol li::before{
  content:counter(bodyitem);position:absolute;left:0;top:.3em;width:20px;height:20px;border-radius:6px;
  background:rgba(0,217,165,.12);color:var(--primary);font-size:12px;font-weight:600;
  display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:0 0 24px;padding:18px 20px;background:var(--surface);
  border-left:3px solid var(--primary);border-radius:0 var(--r-media) var(--r-media) 0;
  color:var(--text-2);font-style:normal;
}
.article-body img{border-radius:var(--r-media);margin:10px 0 24px;width:100%}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#fff}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--surface)}
.article-body .table-scroll{overflow-x:auto;margin:0 0 24px;border:1px solid var(--line);border-radius:var(--r-media)}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:var(--surface-hi);font-weight:600;color:var(--text-1);white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body .link-card{
  display:block;margin:0 0 24px;padding:16px 18px;background:var(--surface);
  border:1px solid var(--line);border-left:4px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;transition:all .24s var(--ease);
}
.article-body .link-card:hover{background:var(--surface-hi);border-color:var(--line-hi);border-left-color:var(--primary);transform:translateX(2px)}
.article-body .link-card .lc-kicker{font-size:12.5px;color:var(--text-3);margin-bottom:6px}
.article-body .link-card .lc-title{font-size:16px;font-weight:600;color:var(--text-1);text-decoration:none}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:12px;padding:64px 24px;border:1px dashed var(--line-hi);
  border-radius:var(--r-card);background:var(--surface);margin:0 auto;max-width:760px;
}
.empty-state svg{color:var(--text-3)}
.empty-state .es-title{font-size:15px;font-weight:600;color:var(--text-1)}
.empty-state .es-desc{font-size:13px;color:var(--text-3);max-width:380px}
.empty-state .btn{margin-top:10px}

/* ---------- related ---------- */
.related{padding:76px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:-.02em}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
  display:flex;flex-direction:column;gap:12px;padding:22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:all .24s var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2)}
.related-card .rc-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text-1)}
.related-card .rc-desc{font-size:14px;color:var(--text-2);line-height:1.7}
.related-card .rc-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);margin-top:auto}
.back-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.back-row .hint{font-size:13.5px;color:var(--text-3)}

/* ---------- cta ---------- */
.cta-section{padding:96px 0 0}
.cta-box{
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;
  gap:36px;padding:48px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);
}
.cta-box::before{
  content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;
  background:radial-gradient(circle,rgba(0,217,165,.14),rgba(0,217,165,0) 68%);pointer-events:none;
}
.cta-box .cta-text{position:relative;max-width:640px}
.cta-box h2{font-size:28px;font-weight:700;letter-spacing:-.02em;margin-bottom:12px}
.cta-box p{font-size:15px;color:var(--text-2);line-height:1.8}
.cta-box .btn{position:relative}
.cta-note{font-size:13px;color:var(--text-3);margin-top:18px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.75;max-width:330px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-btn{
  width:36px;height:36px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);transition:all .16s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-list a{color:var(--text-2);transition:color .16s var(--ease),transform .16s var(--ease);display:inline-block}
.footer-list a:hover{color:var(--primary);transform:translateX(-2px)}
.muted{color:var(--text-3);font-size:13.5px}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ---------- motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.article-head .breadcrumb{animation:fadeUp .4s var(--ease) both}
.article-head h1{animation:fadeUp .4s var(--ease) .06s both}
.article-head .meta-row{animation:fadeUp .4s var(--ease) .12s both}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:36px}
  .article-head{padding:120px 0 36px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px}
  .brand-name{font-size:15.5px}
  .article-head{padding:104px 0 30px}
  .article-lead{font-size:15px}
  .article-wrap{padding:40px 0 0}
  .article-body{font-size:15.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin:36px 0 16px}
  .article-body h3{font-size:17.5px;margin:28px 0 12px}
  .article-body p{margin-bottom:20px}
  .related{padding:56px 0 0}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-section{padding:64px 0 0}
  .cta-box h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px;margin-top:64px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .brand-name{font-size:14.5px}
  .article-head h1{font-size:26px}
  .btn{padding:11px 18px;font-size:14.5px}
}

/* roulang page: category1 */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --r-card:16px;
  --r-media:14px;
  --r-btn:12px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter","SF Pro Text",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{flex:0 0 auto}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,14,.72);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,11,14,.94);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#06110D;font-weight:800;font-size:17px;
  display:grid;place-items:center;
}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:9px 12px;font-size:14.5px;color:var(--text-2);
  border-radius:10px;transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transform:scaleX(.4);transform-origin:center;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{opacity:.5;transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;
  align-items:center;justify-content:center;color:var(--text-1);
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hi);background:var(--surface)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:12px 20px;white-space:nowrap;
  transition:transform .24s var(--ease),filter .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),box-shadow .24s var(--ease);
}
.btn svg{transition:transform .24s var(--ease)}
.btn-primary{background:var(--primary);color:#06110D;box-shadow:0 8px 28px rgba(0,217,165,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 34px rgba(0,217,165,.36)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-primary:active{background:var(--primary-deep);transform:translateY(1px)}
.btn-ghost{background:transparent;border:1px solid var(--line-hi);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg-alt);padding:56px 0 60px}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.34;
}
.page-hero .hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,14,.72),rgba(10,11,14,.92))}
.page-hero .hero-glow{
  position:absolute;inset:0;
  background:radial-gradient(620px 280px at 78% 12%,rgba(0,217,165,.16),transparent 68%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--primary);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);font-weight:800;line-height:1.16;letter-spacing:-.02em;
  max-width:20ch;
}
.hero-sub{margin-top:18px;max-width:60ch;font-size:16px;color:var(--text-2);line-height:1.8}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:var(--text-3)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta svg{color:var(--primary)}

/* ---------- generic section ---------- */
.section{padding:104px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.24;letter-spacing:-.02em}
.section-head p{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.8}

/* ---------- alternating rows ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-bottom:1px solid var(--line);
}
.split:first-of-type{padding-top:8px}
.split:last-of-type{border-bottom:0;padding-bottom:0}
.split-media{
  border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s var(--ease)}
.split:hover .split-media{border-color:var(--line-hi);box-shadow:var(--sh-2)}
.split:hover .split-media img{transform:scale(1.04)}
.split.reverse .split-media{order:2}
.split-body .tag{margin-bottom:16px}
.split-body h3{font-size:clamp(19px,2vw,22px);font-weight:600;line-height:1.35;letter-spacing:-.01em}
.split-body p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.point-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:2px;background:var(--primary);
}
.point-list li b{color:var(--text-1);font-weight:600}

/* ---------- badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
}
.tag-primary{background:rgba(0,217,165,.12);color:var(--primary)}
.tag-accent{background:rgba(255,122,69,.14);color:var(--accent)}

/* ---------- case grid ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.case-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);background:var(--surface-hi)}
.case-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(0,217,165,.1);color:var(--primary);margin-bottom:18px;
}
.case-card h3{font-size:17px;font-weight:600;line-height:1.4}
.case-card p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- checklist ---------- */
.check-wrap{display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:start}
.check-list{display:flex;flex-direction:column;gap:20px}
.check-item{
  display:flex;gap:16px;padding:20px 22px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.check-item:hover{border-color:var(--line-hi);background:var(--surface-hi)}
.check-num{
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--primary);
  padding-top:3px;letter-spacing:.04em;
}
.check-item h3{font-size:16px;font-weight:600;line-height:1.45}
.check-item p{margin-top:8px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-card-body{padding:22px}
.side-card-body h3{font-size:16.5px;font-weight:600}
.side-card-body p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.side-note{
  margin-top:18px;display:flex;gap:10px;font-size:13.5px;color:var(--text-3);line-height:1.7;
  padding-top:16px;border-top:1px solid var(--line);
}
.side-note svg{color:var(--accent);margin-top:3px}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 4px;font-size:16.5px;font-weight:600;line-height:1.5;
  transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .faq-icon{
  margin-left:auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line-hi);display:grid;place-items:center;color:var(--text-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] summary .faq-icon{transform:rotate(180deg);border-color:var(--primary);color:var(--primary)}
.faq-body{padding:0 4px 24px;max-width:74ch}
.faq-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.faq-item[open] .faq-body{animation:faqIn .24s var(--ease)}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- cta ---------- */
.cta-block{
  position:relative;overflow:hidden;
  border:1px solid var(--line-hi);border-radius:var(--r-card);
  background:var(--bg-alt);
  padding:52px 48px;
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 240px at 50% 0%,rgba(0,217,165,.14),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;gap:32px;justify-content:space-between;flex-wrap:wrap}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.28;letter-spacing:-.02em}
.cta-copy p{margin-top:14px;color:var(--text-2);font-size:15.5px;max-width:56ch;line-height:1.8}
.cta-foot{position:relative;z-index:2;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* ---------- footer ---------- */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:34ch}
.footer-title{font-size:14px;font-weight:700;margin:0 0 18px;color:var(--text-1)}
.footer-list{display:flex;flex-direction:column;gap:11px;font-size:14px}
.footer-list a{color:var(--text-2);transition:color .16s var(--ease),transform .24s var(--ease);display:inline-block}
.footer-list a:hover{color:var(--primary);transform:translateX(2px)}
.footer-list .muted{color:var(--text-3);font-size:14px}
.social-row{display:flex;gap:10px;margin-top:22px}
.social-btn{
  width:36px;height:36px;border-radius:11px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .24s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.58);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:84vw;max-width:360px;background:var(--surface);
  border-left:1px solid var(--line);box-shadow:var(--sh-2);
  padding:24px 22px;transform:translateX(100%);
  transition:transform .24s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-brand{display:flex;align-items:center;gap:10px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:12px}
.drawer .nav-link{display:flex;align-items:center;min-height:52px;padding:12px 4px;font-size:15.5px;border-radius:10px}
.drawer .nav-link::after{left:4px;right:auto;width:20px;bottom:8px}
.drawer-cta{margin-top:18px}
.drawer-cta .btn{width:100%}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .case-grid{grid-template-columns:repeat(3,1fr)}
  .section{padding:88px 0}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .split.reverse .split-media{order:0}
  .split-media img{aspect-ratio:16/10}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .check-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{padding:40px 32px}
  .page-hero{padding:44px 0 48px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:64px;gap:12px}
  .brand-name{font-size:15px}
  .page-hero h1{max-width:none}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1 1 auto}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .case-grid{grid-template-columns:1fr;gap:16px}
  .split-body p,.check-item p,.case-card p{font-size:14.5px;line-height:1.8}
  .faq-item summary{font-size:15.5px;padding:18px 2px}
  .cta-block{padding:32px 20px}
  .cta-inner{gap:22px}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .site-footer{padding-top:52px}
}
@media (max-width:479px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .brand-name{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .split:hover .split-media img{transform:none}
  .case-card:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --radius-card:16px;
  --radius-media:14px;
  --radius-btn:12px;
  --radius-pill:999px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease)}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(0,217,165,.28)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.muted{color:var(--text-3)}

/* ============ 头部 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,11,14,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:32px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(0,217,165,.22),rgba(0,217,165,.06));
  border:1px solid rgba(0,217,165,.42);
  color:var(--primary);font-weight:800;font-size:16px;line-height:1;
}
.brand-name{
  font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--text-1);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(0,217,165,0));
  opacity:0;transition:opacity .16s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{opacity:.7}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{height:2px;opacity:1;background:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),box-shadow .24s var(--ease),filter .16s var(--ease);
}
.btn-primary{
  background:var(--primary);color:#06110D;
  box-shadow:0 8px 28px rgba(0,217,165,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 34px rgba(0,217,165,.36)}
.btn-primary:active{background:var(--primary-deep);transform:translateY(1px)}
.btn-ghost{
  background:transparent;color:var(--text-1);
  border-color:var(--line-hi);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);font-size:15px;font-weight:500;
}
.btn-link:hover{color:var(--primary)}
.btn-link svg{transition:transform .16s var(--ease)}
.btn-link:hover svg{transform:translateX(3px)}

/* ============ 汉堡 + 抽屉 ============ */
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line-hi);place-items:center;color:var(--text-1);
}
.menu-toggle:hover{border-color:var(--primary);color:var(--primary)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:80;
  background:var(--surface);border-left:1px solid var(--line);box-shadow:var(--sh-2);
  transform:translateX(100%);transition:transform .24s var(--ease);
  padding:24px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-title{font-size:15px;font-weight:700}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2)}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-link{
  display:flex;align-items:center;min-height:52px;padding:0 14px;
  border-radius:10px;color:var(--text-2);font-size:15.5px;font-weight:500;
  border:1px solid transparent;
}
.drawer-link:hover{background:var(--surface-hi);color:var(--text-1);border-color:var(--line)}
.drawer-link.is-active{color:var(--primary);border-color:rgba(0,217,165,.4);background:rgba(0,217,165,.08)}
.drawer .btn{margin-top:18px;width:100%}

/* ============ 面包屑 ============ */
.breadcrumb{padding:118px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb [aria-current]{color:var(--text-1)}

/* ============ 分类抬头区 ============ */
.cat-hero{
  position:relative;
  padding:34px 0 76px;
  background:
    linear-gradient(180deg,rgba(10,11,14,.74),rgba(10,11,14,.94)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(120% 90% at 78% 10%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(120% 90% at 78% 10%,#000 0%,transparent 72%);
}
.cat-hero-inner{position:relative;z-index:1;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);
  background:rgba(0,217,165,.10);
  border:1px solid rgba(0,217,165,.28);
  border-radius:var(--radius-pill);
  padding:6px 12px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary)}
.cat-hero h1{
  margin-top:22px;
  font-size:clamp(28px,4.4vw,50px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;
}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.cat-hero .lede{
  margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:640px;
}
.cat-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;font-size:13px;color:var(--text-3)}
.cat-meta span{display:inline-flex;align-items:center;gap:7px}
.cat-meta svg{color:var(--primary);flex-shrink:0}

/* ============ 板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.24;letter-spacing:-.02em;
  position:relative;padding-left:18px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--primary);
}
.section-sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:520px;padding-left:18px}

/* ============ 四环节速览 ============ */
.flow-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);box-shadow:var(--sh-1);overflow:hidden;
}
.flow-item{padding:26px 24px;border-right:1px solid var(--line);transition:background .24s var(--ease)}
.flow-item:last-child{border-right:0}
.flow-item:hover{background:var(--surface-hi)}
.flow-num{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--primary);
  font-family:Inter,"Noto Sans SC",sans-serif;
}
.flow-item h3{font-size:17px;font-weight:600;margin-top:12px}
.flow-item p{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-top:8px}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.topic-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .16s var(--ease),box-shadow .24s var(--ease);
}
.topic-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2)}
.topic-media{aspect-ratio:16/10;overflow:hidden;background:#0d0f13;border-bottom:1px solid var(--line)}
.topic-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.topic-card:hover .topic-media img{transform:scale(1.04)}
.topic-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:6px}
.tag{
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(0,217,165,.12);color:var(--primary);
}
.tag-accent{background:rgba(255,122,69,.14);color:var(--accent)}
.topic-title{font-size:17px;font-weight:600;line-height:1.4;letter-spacing:-.01em}
.topic-desc{font-size:14px;color:var(--text-2);line-height:1.72}
.topic-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.topic-foot svg{color:var(--text-3);transition:transform .16s var(--ease),color .16s var(--ease)}
.topic-card:hover .topic-foot svg{transform:translateX(3px);color:var(--primary)}
.card-link{position:absolute;inset:0;z-index:2;border-radius:var(--radius-card)}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--bg-alt);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-media);padding:24px 26px;
}
.notice-icon{
  flex-shrink:0;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,122,69,.14);color:var(--accent);
}
.notice h3{font-size:17px;font-weight:600}
.notice p{font-size:14.5px;color:var(--text-2);line-height:1.78;margin-top:8px}

/* ============ FAQ ============ */
.faq{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:16.5px;font-weight:600;line-height:1.5;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--surface-hi)}
.faq-icon{
  flex-shrink:0;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-hi);display:grid;place-items:center;color:var(--text-2);
  transition:transform .24s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:rgba(0,217,165,.5);color:var(--primary)}
.faq-answer{padding:0 26px 24px;font-size:15px;color:var(--text-2);line-height:1.82;max-width:860px}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;padding:80px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-alt)}
.cta-band::before{
  content:"";position:absolute;left:50%;top:50%;width:720px;height:720px;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(0,217,165,.10),transparent 62%);pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;
  border:1px solid var(--line-hi);border-radius:var(--radius-card);
  padding:44px 44px;background:rgba(22,24,30,.62);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.02em;line-height:1.3}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-note{grid-column:1/-1;font-size:13px;color:var(--text-3);margin-top:6px;padding-top:20px;border-top:1px solid var(--line)}

/* ============ 页脚 ============ */
.site-footer{background:#070809;border-top:1px solid var(--line);padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-desc{margin-top:16px;font-size:13.5px;color:var(--text-3);line-height:1.8;max-width:290px}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-btn{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list a{color:var(--text-2);font-size:13.5px;transition:color .16s var(--ease),transform .16s var(--ease);width:fit-content}
.footer-list a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-list .muted{font-size:13.5px;line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ============ 首屏错峰进场 ============ */
.reveal{opacity:0;transform:translateY(12px);animation:reveal .5s var(--ease) forwards}
.reveal:nth-child(1){animation-delay:.05s}
.reveal:nth-child(2){animation-delay:.11s}
.reveal:nth-child(3){animation-delay:.17s}
.reveal:nth-child(4){animation-delay:.23s}
@keyframes reveal{to{opacity:1;transform:none}}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-item:nth-child(2){border-right:0}
  .flow-item:nth-child(1),.flow-item:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr;padding:36px 30px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .header-inner{height:66px;gap:16px}
  .breadcrumb{padding-top:100px}
  .cat-hero{padding-bottom:56px}
  .cat-hero .lede{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .card-grid{grid-template-columns:1fr}
  .flow-strip{grid-template-columns:1fr}
  .flow-item{border-right:0;border-bottom:1px solid var(--line)}
  .flow-item:last-child{border-bottom:0}
  .notice{flex-direction:column;padding:22px 20px}
  .faq-item summary{padding:18px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 20px}
  .cta-band{padding:64px 0}
  .cta-inner{padding:28px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .brand-name{font-size:15px}
  .cat-hero h1{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-media:14px;
  --r-btn:12px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04),0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.02em}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.muted{color:var(--text-3)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  font-family:inherit;cursor:pointer;border:1px solid transparent;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),filter .16s var(--ease);
  white-space:nowrap;
}
.btn svg{flex:none;transition:transform .16s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#06110D;box-shadow:0 8px 28px rgba(0,217,165,.28)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 34px rgba(0,217,165,.36)}
.btn-primary:active{background:var(--primary-deep);transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line-hi);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-text{color:var(--text-2);padding:8px 0;font-weight:600}
.btn-text:hover{color:var(--primary)}
.btn-block{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,11,14,.92);border-bottom-color:var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:rgba(0,217,165,.12);border:1px solid rgba(0,217,165,.35);
  color:var(--primary);font-weight:800;font-size:15px;line-height:1;
}
.brand-name{font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--text-1)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;padding:8px 2px;color:var(--text-2);font-size:15px;font-weight:500}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{height:2px;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-hi);color:var(--text-1);place-items:center;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(4,5,7,.68);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:84vw;max-width:360px;background:var(--bg-alt);
  border-left:1px solid var(--line);box-shadow:var(--sh-2);
  transform:translateX(102%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;padding:20px;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-hi);display:grid;place-items:center;font-size:20px;line-height:1;color:var(--text-2)}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-links{display:flex;flex-direction:column;margin:8px 0 16px}
.drawer-links a{
  display:flex;align-items:center;min-height:52px;color:var(--text-2);
  font-size:16px;border-bottom:1px solid var(--line);padding:0 4px;
}
.drawer-links a:hover{color:var(--primary)}
.drawer-links a.is-active{color:var(--text-1);font-weight:600;box-shadow:inset 2px 0 0 var(--primary);padding-left:12px}

/* ---------- 分类抬头区 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 76px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(10,11,14,.68) 0%,rgba(10,11,14,.88) 62%,rgba(10,11,14,.97) 100%),var(--hero-img);
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;top:-120px;right:-80px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(0,217,165,.10),transparent 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:26px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text-3)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);padding:6px 12px;border-radius:999px;
  background:rgba(0,217,165,.10);border:1px solid rgba(0,217,165,.28);margin-bottom:18px;
}
.hero-title{
  font-size:clamp(28px,4.4vw,50px);
  font-weight:800;line-height:1.14;max-width:880px;margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:680px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text-2);
}
.badge-primary{background:rgba(0,217,165,.12);color:var(--primary);border-color:rgba(0,217,165,.28)}
.badge-accent{background:rgba(255,122,69,.14);color:var(--accent);border-color:rgba(255,122,69,.26)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--primary);margin-bottom:14px;
}
.section-title{font-size:clamp(24px,3vw,36px);font-weight:700;margin-bottom:16px}
.section-desc{font-size:16px;color:var(--text-2);line-height:1.8}

/* ---------- 常见情形快览卡 ---------- */
.quad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.info-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2);background:var(--surface-hi)}
.info-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(0,217,165,.10);border:1px solid rgba(0,217,165,.24);
  color:var(--primary);margin-bottom:18px;
}
.info-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.info-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.card-tagline{display:block;font-size:12px;color:var(--text-3);margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}

/* ---------- 编号时间线 ---------- */
.timeline{position:relative;margin-top:8px;display:flex;flex-direction:column}
.timeline::before{
  content:"";position:absolute;left:31px;top:34px;bottom:34px;width:1px;
  background:linear-gradient(180deg,rgba(0,217,165,.35),rgba(255,255,255,.08));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:64px 1fr;gap:28px;
  padding:26px 0;align-items:flex-start;
}
.tl-item + .tl-item{border-top:1px solid var(--line)}
.tl-index{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg-base);border:1px solid var(--line-hi);
  color:var(--primary);font-weight:800;font-size:16px;letter-spacing:.02em;
  position:relative;z-index:1;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tl-item:hover .tl-index{border-color:rgba(0,217,165,.5);box-shadow:0 0 0 6px rgba(0,217,165,.06)}
.tl-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:border-color .24s var(--ease),background .24s var(--ease)}
.tl-item:hover .tl-body{border-color:var(--line-hi);background:var(--surface-hi)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.tl-body h3{font-size:21px;font-weight:600}
.tl-rows{display:grid;gap:12px}
.tl-row{display:grid;grid-template-columns:78px 1fr;gap:16px;align-items:start}
.tl-label{
  font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:.04em;
  padding-top:3px;border-left:3px solid var(--line-hi);padding-left:10px;
}
.tl-row.is-fix .tl-label{border-left-color:var(--primary);color:var(--primary)}
.tl-value{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- 图文分区 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.split + .split{border-top:1px solid var(--line)}
.split.reverse .split-media{order:2}
.split-media{position:relative;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.split:hover .split-media img{transform:scale(1.04)}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(10,11,14,.78);border:1px solid var(--line-hi);
  color:var(--text-1);font-size:12px;padding:6px 12px;border-radius:999px;
}
.split-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:16px}
.split-text p{font-size:15.5px;color:var(--text-2);line-height:1.85;margin-bottom:16px}
.dot-list{display:grid;gap:10px;margin-top:20px}
.dot-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--primary);
}

/* ---------- 自查清单 ---------- */
.check-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:8px 28px;box-shadow:var(--sh-1);
}
.check-item{
  display:grid;grid-template-columns:28px 1fr auto;gap:18px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);min-height:56px;
}
.check-item:last-child{border-bottom:0}
.check-mark{
  width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  border:1px solid rgba(0,217,165,.4);background:rgba(0,217,165,.10);color:var(--primary);
}
.check-text strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:4px}
.check-text span{font-size:14px;color:var(--text-2)}
.check-meta{font-size:12.5px;color:var(--text-3);white-space:nowrap}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:40px}
.stat-cell{background:var(--surface);padding:26px 24px}
.stat-cell .num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.1}
.stat-cell .lbl{font-size:13px;color:var(--text-3);margin-top:8px}
.stat-cell .txt{font-size:14px;color:var(--text-2);margin-top:10px;line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  flex:none;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-hi);color:var(--text-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--primary);color:var(--primary)}
.faq-answer{padding:0 4px 26px;max-width:820px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--line-hi);border-radius:var(--r-card);
  background:
    radial-gradient(circle at 50% 0%,rgba(0,217,165,.10),transparent 62%),
    var(--bg-alt);
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:12px}
.cta-band p{font-size:15.5px;color:var(--text-2);max-width:560px;line-height:1.8}
.cta-note{font-size:13px;color:var(--text-3);margin-top:18px;width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding:72px 0 28px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px}
.social-row{display:flex;gap:10px;margin-top:22px}
.social-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .24s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a,.footer-list span{font-size:14px;color:var(--text-2)}
.footer-list a:hover{color:var(--primary);transform:translateX(-2px);display:inline-block}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.d1.is-in{transition-delay:.06s}
.reveal.d2.is-in{transition-delay:.12s}
.reveal.d3.is-in{transition-delay:.18s}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  .quad-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px;padding:36px 0}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:72px 0}
  .page-hero{padding:130px 0 60px}
  .stat-strip{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 24px}
  .hero-sub{font-size:15.5px}
  .timeline::before{left:23px}
  .tl-item{grid-template-columns:48px 1fr;gap:18px;padding:20px 0}
  .tl-index{width:48px;height:48px;font-size:14px}
  .tl-body{padding:20px}
  .tl-row{grid-template-columns:1fr;gap:6px}
  .tl-label{border-left:0;border-left:3px solid var(--line-hi)}
  .tl-row.is-fix .tl-label{border-left-color:var(--primary)}
  .check-item{grid-template-columns:28px 1fr;gap:14px}
  .check-meta{grid-column:2}
  .cta-band{padding:36px 24px}
  .section{padding:60px 0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{height:64px}
  .brand-name{font-size:15.5px}
  .page-hero{padding:112px 0 52px}
  .quad-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .check-panel{padding:4px 18px}
  .stat-cell{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --bg-base:#0A0B0E;
  --bg-alt:#101216;
  --surface:#16181E;
  --surface-hi:#1D2027;
  --line:rgba(255,255,255,.08);
  --line-hi:rgba(255,255,255,.18);
  --primary:#00D9A5;
  --primary-deep:#00A87F;
  --accent:#FF7A45;
  --text-1:#EEF1F5;
  --text-2:#A7B0BD;
  --text-3:#6B7482;
  --ok:#35C28D;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-media:14px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.04), 0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 24px 56px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.2,1);
  --header-h:72px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(0,217,165,.28);color:#fff}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,11,14,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(0,217,165,.12);
  border:1px solid rgba(0,217,165,.32);
  color:var(--primary);font-size:15px;font-weight:700;line-height:1;
}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:1px;
  background:var(--primary);opacity:0;transform:scaleX(.4);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{opacity:.7;transform:scaleX(1)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);height:2px;border-radius:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);color:var(--text-1);
  align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-hi);background:var(--surface)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 22px;border-radius:var(--r-btn);
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .24s var(--ease),filter .2s var(--ease);
}
.btn svg{transition:transform .2s var(--ease)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:var(--primary);color:#06110D;
  box-shadow:0 8px 28px rgba(0,217,165,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,217,165,.34)}
.btn-primary:active{transform:translateY(1px);background:var(--primary-deep)}
.btn-outline{
  background:transparent;color:var(--text-1);
  border:1px solid var(--line-hi);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-outline:hover svg{transform:translateX(3px)}
.btn-ghost{color:var(--text-2);padding:8px 0;font-weight:600}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover svg{transform:translateX(3px)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(4,5,7,.62);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:84vw;max-width:360px;
  background:var(--bg-alt);
  border-left:1px solid var(--line);
  box-shadow:var(--sh-2);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  display:flex;flex-direction:column;gap:8px;
  padding:20px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:20px;line-height:1;color:var(--text-2);
}
.drawer-close:hover{border-color:var(--line-hi);color:var(--text-1)}
.drawer-nav{display:flex;flex-direction:column;padding:6px 0}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;
  font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--text-1)}
.drawer-link.is-active{color:var(--primary);font-weight:600}
.drawer-cta{margin-top:12px}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding-top:calc(var(--header-h) + 56px);
  padding-bottom:64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center right;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,14,.86) 0%,rgba(10,11,14,.92) 60%,var(--bg-base) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-2)}
.page-hero-title{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  max-width:820px;
}
.page-hero-sub{
  margin-top:18px;max-width:660px;
  font-size:16px;line-height:1.8;color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;
  padding:6px 12px;border-radius:var(--r-pill);
}
.tag-primary{background:rgba(0,217,165,.12);color:var(--primary)}
.tag-accent{background:rgba(255,122,69,.14);color:var(--accent)}
.tag-plain{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}

/* ---------- sections ---------- */
.section{padding:100px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--primary);margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700}
.section-head h2 span{color:var(--primary)}
.section-sub{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.8}

/* ---------- matrix ---------- */
.matrix-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
}
.matrix-cell{
  background:var(--bg-base);
  padding:30px 26px;
  transition:background .24s var(--ease);
}
.matrix-cell:hover{background:var(--surface)}
.cell-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(0,217,165,.1);
  border:1px solid rgba(0,217,165,.24);
  color:var(--primary);margin-bottom:18px;
}
.matrix-cell h3{font-size:19px;font-weight:600;letter-spacing:-.01em}
.matrix-cell p{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.cell-meta{margin-top:16px;font-size:12.5px;color:var(--text-3)}

/* ---------- channel cards ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--sh-2)}
.channel-media{aspect-ratio:16/9;overflow:hidden}
.channel-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.channel-card:hover .channel-media img{transform:scale(1.04)}
.channel-body{padding:24px}
.channel-body h3{font-size:21px;font-weight:600}
.channel-body p{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.channel-list{margin-top:18px;border-top:1px solid var(--line)}
.channel-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px 0;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.channel-list li:last-child{border-bottom:0}
.dot{width:6px;height:6px;flex:0 0 6px;border-radius:2px;background:var(--primary);margin-top:9px}

/* ---------- prepare grid ---------- */
.prep-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.prep-item{background:var(--bg-alt);padding:28px 26px;display:flex;gap:18px;transition:background .24s var(--ease)}
.prep-item:hover{background:var(--surface)}
.prep-num{
  font-size:13px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
  padding-top:3px;min-width:28px;
}
.prep-item h3{font-size:17px;font-weight:600}
.prep-item p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- steps strip ---------- */
.steps-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.step-cell{background:var(--bg-base);padding:28px 24px;transition:background .24s var(--ease)}
.step-cell:hover{background:var(--surface)}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--primary);
  border:1px solid rgba(0,217,165,.3);background:rgba(0,217,165,.08);
  border-radius:8px;padding:4px 10px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step-cell h3{font-size:16.5px;font-weight:600}
.step-cell p{margin-top:10px;font-size:14px;line-height:1.78;color:var(--text-2)}

/* ---------- notice ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:32px;padding:18px 20px;
  background:rgba(255,176,32,.06);
  border:1px solid rgba(255,176,32,.24);
  border-radius:var(--r-card);
}
.notice-icon{color:var(--warn);flex:0 0 auto;margin-top:2px}
.notice p{font-size:14px;line-height:1.8;color:var(--text-2)}
.notice strong{color:var(--text-1);font-weight:600}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  width:30px;height:30px;flex:0 0 30px;border-radius:var(--r-pill);
  border:1px solid var(--line-hi);
  display:grid;place-items:center;color:var(--text-2);
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--primary);color:var(--primary)}
.faq-answer{padding:0 0 24px;max-width:760px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-band{padding:0 0 110px}
.cta-box{
  position:relative;overflow:hidden;
  border:1px solid var(--line-hi);border-radius:var(--r-card);
  padding:56px 48px;
  background:var(--bg-alt);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-box::before{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(0,217,165,.14),transparent 68%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text h2{font-size:clamp(23px,2.6vw,30px);font-weight:700}
.cta-text p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.8}
.cta-box .btn{position:relative;z-index:2}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-3);position:relative;z-index:2;width:100%}

/* ---------- footer ---------- */
.site-footer{background:#07080A;border-top:1px solid var(--line);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.brand-name.logo-wordmark{font-size:16px;font-weight:700}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:300px}
.social-row{display:flex;gap:10px;margin-top:22px}
.social-btn{
  width:36px;height:36px;border-radius:12px;
  border:1px solid var(--line);color:var(--text-2);
  display:grid;place-items:center;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.social-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list a,.footer-list .muted{
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.footer-list a:hover{color:var(--primary);transform:translateX(2px)}
.footer-list .muted{color:var(--text-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(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .nav-link{padding:8px 10px;font-size:14.5px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .steps-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .section{padding:76px 0}
  .cta-box{padding:44px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding-top:calc(var(--header-h) + 36px);padding-bottom:48px}
  .page-hero-title{font-size:clamp(26px,7.6vw,34px)}
  .page-hero-sub{font-size:15.5px}
  .section{padding:60px 0}
  .section-head{margin-bottom:32px}
  .matrix-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .prep-grid{grid-template-columns:1fr}
  .steps-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding-bottom:72px}
  .cta-box{padding:32px 22px}
  .cta-box .btn{width:100%}
}
@media (max-width:479px){
  .brand-name{font-size:14.5px}
  .matrix-cell,.prep-item,.step-cell{padding:24px 20px}
  .drawer-head .brand-name{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .channel-card:hover{transform:none}
  .channel-card:hover .channel-media img{transform:none}
}