/* roulang page: index */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg,rgba(26,58,66,.62),rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(22,194,166,.35),0 12px 32px rgba(22,194,166,.26);
  --inner-light:inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.33,.9,.4,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),opacity .2s var(--ease)}
a:visited{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:104px 0}
.section--tight{padding:88px 0}
.section--deep{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.38);
  background:rgba(22,194,166,.08);
  color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.08em;
  line-height:1.6;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--glow)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.h2{font-size:38px;font-weight:800;margin:18px 0 14px;letter-spacing:-.01em}
.lead{font-size:16px;color:var(--text-2);line-height:1.9}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.head-row .h2{margin-bottom:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#04140F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:#1FD6B8;color:#04140F;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,194,166,.5),0 16px 40px rgba(22,194,166,.36)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--text);border:1px solid rgba(22,194,166,.4)}
.btn-ghost:hover{background:rgba(22,194,166,.08);border-color:rgba(22,194,166,.7);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600;line-height:1.6}
.btn-text svg{transition:transform .2s var(--ease)}
.btn-text:hover{color:#3BE0C4}
.btn-text:hover svg{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,194,166,.14);color:var(--brand);
  font-size:12px;font-weight:600;line-height:1.7;letter-spacing:.02em;
}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:76px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.scrolled{
  height:64px;
  background:rgba(6,16,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{width:30px;height:30px;color:var(--brand);flex:0 0 auto}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:var(--r-sm);
  font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transform-origin:center;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-2);cursor:pointer;transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(22,194,166,.45);background:rgba(22,194,166,.08)}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  cursor:pointer;position:relative;
}
.menu-btn span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.menu-btn span:nth-child(1){top:14px}
.menu-btn span:nth-child(2){top:20px}
.menu-btn span:nth-child(3){top:26px}
.menu-btn.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(4,10,16,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:92px 22px 110px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .3s var(--ease),opacity .25s var(--ease);
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer .drawer-label{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin-bottom:14px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:18px;font-weight:600;color:var(--text);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand)}
.drawer-foot{
  position:fixed;left:0;right:0;bottom:0;padding:16px 22px 22px;
  background:linear-gradient(to top,rgba(4,10,16,.98),rgba(4,10,16,.6));
  border-top:1px solid var(--line);
}
.drawer-foot .btn{width:100%}

/* ===== Hero ===== */
.hero{
  position:relative;padding:168px 0 104px;overflow:hidden;
  background-image:
    radial-gradient(680px 420px at 78% 8%,rgba(22,194,166,.09),transparent 62%),
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:auto,40px 40px,40px 40px;
  background-position:center,center top,center top;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:220px;
  background:linear-gradient(to bottom,transparent,var(--ink-900));pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-copy .eyebrow{margin-bottom:24px}
.hero h1{
  font-size:clamp(32px,4.6vw,56px);font-weight:800;line-height:1.18;letter-spacing:-.015em;
  margin:0 0 20px;
}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:17px;color:var(--text-2);line-height:1.9;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:38px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.hero-metric .val{
  font-size:30px;font-weight:700;color:var(--accent);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.hero-metric .val small{font-size:14px;font-weight:600;margin-left:3px;color:rgba(255,196,107,.82)}
.hero-metric .lab{font-size:12px;color:var(--text-3);margin-top:6px;letter-spacing:.02em}
.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-glass);box-shadow:var(--shadow),var(--inner-light);
  background:var(--ink-700);aspect-ratio:16/12;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(5,12,18,.18),rgba(5,12,18,.72));
  pointer-events:none;
}
.hero-float{
  position:absolute;top:18px;right:18px;z-index:3;
  padding:14px 18px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line-glass);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);min-width:172px;
}
.hero-float .fv{font-size:24px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-float .fl{font-size:12px;color:var(--text-2);margin-top:4px;line-height:1.6}

/* ===== Bento 服务矩阵 ===== */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bento-card{
  position:relative;display:flex;flex-direction:column;
  padding:26px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inner-light);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  min-height:196px;
}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow),var(--inner-light)}
.bento-card.featured{grid-column:span 2;min-height:236px;justify-content:flex-end}
.bento-card.featured .bc-title{font-size:23px}
.bento-card.featured .bc-img{
  position:absolute;inset:0;border-radius:var(--r-lg);overflow:hidden;z-index:0;
}
.bento-card.featured .bc-img img{width:100%;height:100%;object-fit:cover;opacity:.34;transition:transform .3s var(--ease)}
.bento-card.featured:hover .bc-img img{transform:scale(1.04)}
.bento-card.featured::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);z-index:1;
  background:linear-gradient(180deg,rgba(5,12,18,.15),rgba(5,12,18,.86));
}
.bento-card.featured > *{position:relative;z-index:2}
.bc-icon{
  width:46px;height:46px;border-radius:var(--r-md);display:inline-flex;align-items:center;justify-content:center;
  background:rgba(22,194,166,.12);color:var(--brand);border:1px solid rgba(22,194,166,.22);
  margin-bottom:18px;flex:0 0 auto;
}
.bc-icon svg{width:24px;height:24px}
.bc-title{font-size:20px;font-weight:700;margin-bottom:10px}
.bc-desc{font-size:14px;color:var(--text-2);line-height:1.85;flex:1 1 auto}
.bc-arrow{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--text-3);font-size:13px;font-weight:600}
.bc-arrow svg{transition:transform .2s var(--ease),color .2s var(--ease)}
.bento-card:hover .bc-arrow{color:var(--brand)}
.bento-card:hover .bc-arrow svg{transform:translateX(4px)}

/* ===== 数据条 ===== */
.stats{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat{position:relative;padding-left:22px}
.stat::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--brand),transparent)}
.stat .sv{font-size:clamp(36px,4vw,52px);font-weight:800;color:var(--accent);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.stat .sv small{font-size:.44em;font-weight:600;margin-left:4px;color:rgba(255,196,107,.85)}
.stat .sl{font-size:13px;color:var(--text-2);margin-top:10px;letter-spacing:.02em}

/* ===== 客户案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inner-light);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.case-card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow),var(--inner-light)}
.case-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease),opacity .3s var(--ease);opacity:.9}
.case-card:hover .case-media img{transform:scale(1.04);opacity:1}
.case-media .badge{position:absolute;left:14px;top:14px;background:rgba(5,12,18,.72);border:1px solid rgba(22,194,166,.4);backdrop-filter:blur(8px)}
.case-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.case-title{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px}
.case-desc{font-size:14px;color:var(--text-2);line-height:1.85;flex:1 1 auto}
.case-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}

/* ===== 最新动态 CMS ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;padding:24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line-glass);box-shadow:var(--inner-light);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow),var(--inner-light)}
.news-card .badge{align-self:flex-start;margin-bottom:14px}
.news-title{
  font-size:18px;font-weight:700;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-desc{
  font-size:14px;color:var(--text-2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1 1 auto;
}
.news-foot{
  margin-top:20px;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);
}
.news-foot .date{font-variant-numeric:tabular-nums;letter-spacing:.01em}
.news-foot .go{display:inline-flex;align-items:center;color:var(--brand)}
.news-card:hover .news-foot .go svg{transform:translateX(4px)}
.news-foot .go svg{transition:transform .2s var(--ease)}
.news-empty{
  grid-column:1/-1;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;padding:32px;
  border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line-glass);box-shadow:var(--inner-light);
}
.news-empty .ne-icon{
  width:52px;height:52px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(22,194,166,.1);border:1px solid rgba(22,194,166,.24);color:var(--brand);
}
.news-empty .ne-title{font-size:17px;font-weight:600}
.news-empty .ne-desc{font-size:14px;color:var(--text-2)}

/* ===== 解决方案 ===== */
.sol-row{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;padding:44px 0}
.sol-row + .sol-row{border-top:1px solid var(--line)}
.sol-row.reverse .sol-media{order:2}
.sol-row.reverse .sol-copy{order:1}
.sol-media{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line-glass);box-shadow:var(--shadow)}
.sol-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.sol-row:hover .sol-media img{transform:scale(1.04)}
.sol-copy .badge{margin-bottom:16px}
.sol-copy h3{font-size:24px;font-weight:700;line-height:1.4;margin-bottom:14px}
.sol-copy p{font-size:15px;color:var(--text-2);line-height:1.9}
.check-list{margin:22px 0 24px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text-2);line-height:1.8}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(22,194,166,.5);
}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line-glass);
  background:var(--glass);box-shadow:var(--inner-light);
  overflow:hidden;margin-bottom:12px;
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:rgba(122,222,208,.26)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-idx{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;flex:0 0 auto;letter-spacing:.06em}
.faq-text{flex:1 1 auto}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,194,166,.34);color:var(--brand);
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(22,194,166,.14)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease)}
.faq-a-inner{padding:0 22px 20px 60px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ===== 联系区 ===== */
.contact{position:relative;overflow:hidden}
.contact::before{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,194,166,.08),transparent 68%);pointer-events:none;
}
.contact-grid{position:relative;z-index:2;display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start}
.info-card{
  padding:30px;border-radius:var(--r-lg);background:var(--ink-800);
  border:1px solid var(--line);box-shadow:var(--inner-light);
}
.info-card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.info-card .info-sub{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:24px}
.info-list{display:grid;gap:18px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-item .ii-ico{
  width:36px;height:36px;flex:0 0 auto;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(22,194,166,.1);border:1px solid rgba(22,194,166,.2);color:var(--brand);
}
.info-item .ii-lab{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.info-item .ii-val{font-size:15px;font-weight:600;color:var(--text);line-height:1.6;word-break:break-all}
.info-photo{margin-top:26px;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;border:1px solid var(--line)}
.info-photo img{width:100%;height:100%;object-fit:cover;opacity:.85}
.form-card{
  padding:32px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inner-light);
}
.form-success{
  display:none;align-items:flex-start;gap:12px;margin-bottom:22px;padding:14px 18px;
  border-radius:var(--r-sm);border-left:3px solid var(--brand);
  background:rgba(22,194,166,.1);font-size:14px;color:var(--text);line-height:1.7;
}
.form-success.show{display:flex}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:500;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-sm);color:var(--text);font-size:15px;font-family:inherit;line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field textarea{min-height:120px;resize:vertical}
.field select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A6BEC4' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field select option{background:var(--ink-800);color:var(--text)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(22,194,166,.05);
  box-shadow:0 0 0 3px rgba(22,194,166,.14);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--err);background:rgba(255,107,107,.06)}
.err-msg{display:none;font-size:12px;color:var(--err);line-height:1.6}
.field.error .err-msg{display:block}
.form-actions{margin-top:22px}
.form-actions .btn{width:100%}
.privacy{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.8}
.privacy a{color:var(--text-2);text-decoration:underline;text-underline-offset:3px}
.privacy a:hover{color:var(--brand)}

/* ===== CTA 横幅 ===== */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 38px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inner-light);
}
.cta-band h3{font-size:22px;font-weight:700;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--text-2);line-height:1.85}

/* ===== 页脚 ===== */
.site-footer{background:#03080C;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:300px}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:13.5px;color:var(--text-2)}
.footer-contact a:hover{color:var(--brand)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-list{display:grid;gap:0}
.footer-list a{
  display:inline-block;position:relative;padding:8px 0 8px 0;
  font-size:14px;color:var(--text-2);line-height:1.6;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:0;
  transition:opacity .2s var(--ease);
}
.footer-list a:hover{color:var(--text);padding-left:14px}
.footer-list a:hover::before{opacity:1}
.footer-note{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-note strong{display:block;color:var(--text);font-size:15px;margin-bottom:8px}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .fb-left{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--brand)}

/* ===== 回到顶部 ===== */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line-glass);color:var(--text);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),border-color .2s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(22,194,166,.5);color:var(--brand)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{padding:0 28px}
  .main-nav{gap:2px}
  .nav-link{padding:8px 9px;font-size:13.5px}
  .section{padding:88px 0}
  .hero-grid{gap:40px}
  .sol-row{gap:40px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .menu-btn{display:inline-block}
  .header-actions .btn-primary{display:none}
  .site-header{height:64px}
  .hero{padding:132px 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-figure{aspect-ratio:16/9;max-height:300px}
  .hero-float{top:12px;right:12px;padding:10px 14px;min-width:150px}
  .hero-float .fv{font-size:20px}
  .hero-metrics{gap:26px;margin-top:32px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-card.featured{grid-column:span 2}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .sol-row{grid-template-columns:1fr;gap:26px;padding:36px 0}
  .sol-row.reverse .sol-media,.sol-row.reverse .sol-copy{order:0}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:68px 0}
  .h2{font-size:28px}
  .section-head{margin-bottom:34px}
  .head-row{margin-bottom:34px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .section--tight{padding:56px 0}
  .h2{font-size:26px}
  .hero h1{font-size:clamp(30px,8vw,38px)}
  .hero-sub{font-size:15.5px}
  .hero-cta{gap:12px}
  .hero-cta .btn{width:100%}
  .hero-metric .val{font-size:26px}
  .bento{grid-template-columns:1fr}
  .bento-card.featured{grid-column:span 1;min-height:220px}
  .case-grid,.news-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .info-card{padding:24px}
  .cta-band{padding:26px 22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:0 18px 18px 52px;font-size:14.5px}
  .to-top{right:16px;bottom:16px}
  .brand-name{font-size:17px}
}
@media (max-width:479px){
  .container{padding:0 18px}
  .stats-grid{grid-template-columns:1fr;gap:24px}
  .hero-metrics{gap:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg, rgba(26,58,66,.62), rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --success:#3DD68C;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-soft:inset 0 1px 0 rgba(255,255,255,.06);
  --glow-btn:0 0 0 1px rgba(22,194,166,.35), 0 12px 32px rgba(22,194,166,.26);
  --container:1240px;
  --gap-section:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out, box-shadow .2s ease-out, background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.btn-primary{background:var(--brand);color:#04140F;box-shadow:var(--glow-btn)}
.btn-primary:hover{background:#1AD6B7;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,194,166,.5),0 16px 40px rgba(22,194,166,.36)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,194,166,.35)}
.btn-ghost{background:transparent;border-color:rgba(22,194,166,.4);color:var(--brand)}
.btn-ghost:hover{background:rgba(22,194,166,.1);border-color:rgba(22,194,166,.7)}
.btn-ghost:active{background:rgba(22,194,166,.16)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14.5px;font-weight:600;transition:gap .2s ease-out,color .2s ease-out}
.link-arrow:hover{gap:10px;color:#26E0C0}
.link-arrow svg{width:16px;height:16px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:transparent;border-bottom:1px solid transparent;transition:background .22s ease-out,border-color .22s ease-out}
.site-header.scrolled{background:rgba(6,16,24,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px;transition:height .22s ease-out}
.site-header.scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:30px;height:30px;color:var(--brand)}
.brand-name{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:var(--r-pill);transition:color .2s ease-out,background .2s ease-out}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);cursor:pointer;transition:.2s}
.icon-btn:hover{color:var(--brand);border-color:rgba(22,194,166,.45)}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.menu-toggle svg{width:20px;height:20px}

/* mobile drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(3,9,13,.7);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:.25s;z-index:130}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:140;background:linear-gradient(180deg,#08151F,#050C12);border-left:1px solid var(--line-glass);transform:translateX(102%);transition:transform .28s ease-out;display:flex;flex-direction:column;padding:22px 20px 26px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;overflow-y:auto;flex:1}
.drawer-nav a{font-size:18px;font-weight:600;color:var(--text);padding:12px 6px;border-bottom:1px solid rgba(255,255,255,.06)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand)}
.drawer-cta{margin-top:18px}

/* ---------- article hero ---------- */
.article-hero{position:relative;padding:44px 0 34px;overflow:hidden}
.article-hero::before{content:"";position:absolute;top:-120px;left:6%;width:640px;height:380px;background:radial-gradient(closest-side,rgba(22,194,166,.13),transparent 72%);pointer-events:none}
.article-hero::after{content:"";position:absolute;inset:0;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:40px 40px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);mask-image:linear-gradient(180deg,#000,transparent 88%);pointer-events:none}
.article-hero .container{position:relative;z-index:1}
.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 .2s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .cur{max-width:min(58vw,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;font-size:12px;line-height:1.7;border-radius:var(--r-pill);background:rgba(22,194,166,.14);color:var(--brand);border:1px solid rgba(22,194,166,.22)}
.article-title{font-size:clamp(26px,3.5vw,38px);font-weight:800;line-height:1.32;margin-top:16px;max-width:900px;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.article-meta .val{color:var(--text-2)}
.article-meta .divider{width:1px;height:12px;background:var(--line)}

/* ---------- article layout ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:56px;justify-content:center;padding-bottom:var(--gap-section)}
.article-cover{margin:0 0 34px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:18px;border:1px solid var(--line-glass);background:rgba(255,255,255,.04);box-shadow:var(--shadow)}
.article-cover figcaption{margin-top:10px;text-align:center;font-size:12px;color:var(--text-3)}
.article-body{font-size:16.5px;line-height:1.9;color:#DDEBEA;letter-spacing:.002em}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:24px;font-weight:700;line-height:1.45;color:var(--text);margin:2.1em 0 .8em;padding-left:15px}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;font-weight:600;color:var(--text);margin:1.7em 0 .6em}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--text);margin:1.4em 0 .5em}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#26E0C0}
.article-body strong{color:#FFFFFF;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul{list-style:none;padding-left:1.1em}
.article-body ul>li{position:relative;padding-left:14px;margin:.35em 0}
.article-body ul>li::before{content:"";position:absolute;left:0;top:.82em;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.article-body ol{list-style:decimal}
.article-body ol>li{margin:.35em 0;padding-left:4px}
.article-body ol>li::marker{color:var(--brand);font-variant-numeric:tabular-nums}
.article-body blockquote{margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;background:rgba(255,255,255,.035);color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.5em auto;max-width:100%;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:1.5em 0;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body thead th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body code{background:rgba(255,255,255,.07);border-radius:6px;padding:2px 6px;font-size:14px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;align-self:start}
.side-card{background:var(--glass);border:1px solid var(--line-glass);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-soft)}
.side-card h3{font-size:15px;color:var(--text);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand)}
.side-list a{display:flex;align-items:center;gap:8px;padding:9px 0;font-size:14px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);transition:color .2s,padding-left .2s}
.side-list a:last-child{border-bottom:0}
.side-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:rgba(22,194,166,.35);transition:background .2s}
.side-list a:hover{color:var(--brand);padding-left:4px}
.side-list a:hover::before{background:var(--brand)}
.side-contact p{font-size:13.5px;color:var(--text-2);margin-bottom:12px}
.side-contact .tel{font-size:20px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;display:block;margin-bottom:14px;letter-spacing:.01em}

/* ---------- footer blocks in article ---------- */
.article-footer{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:28px}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{display:inline-flex;align-items:center;padding:5px 14px;font-size:12.5px;border-radius:var(--r-pill);background:rgba(22,194,166,.12);color:var(--brand);border:1px solid rgba(22,194,166,.2);transition:.2s}
.tag:hover{background:rgba(22,194,166,.2);color:#26E0C0}
.next-prev{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:26px}
.np-card{display:block;padding:18px 20px;border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line-glass);box-shadow:var(--shadow-soft);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.np-card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow)}
.np-card .np-key{font-size:12px;color:var(--text-3);margin-bottom:6px;display:block}
.np-card .np-title{font-size:15px;color:var(--text);font-weight:600;line-height:1.5}
.article-back{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}

/* ---------- empty state ---------- */
.empty-wrap{padding:80px 0 var(--gap-section)}
.empty-state{max-width:620px;margin:0 auto;text-align:center;padding:56px 32px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line-glass);box-shadow:var(--shadow-soft)}
.empty-state svg{width:46px;height:46px;color:var(--brand);margin:0 auto 18px}
.empty-state h1{font-size:26px;margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:26px}

/* ---------- footer ---------- */
.site-footer{background:#040A0F;border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:18px;font-size:13.5px;color:var(--text-3)}
.footer-contact a{color:var(--text-2)}
.footer-contact a:hover{color:var(--brand)}
.footer-contact .num{color:var(--accent);font-variant-numeric:tabular-nums;font-weight:600}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column}
.footer-list a{display:block;line-height:34px;font-size:13.5px;color:var(--text-2);transition:color .2s,padding-left .2s;position:relative}
.footer-list a:hover{color:var(--text);padding-left:10px}
.footer-list a:hover::before{content:"";position:absolute;left:0;top:15px;width:4px;height:4px;border-radius:50%;background:var(--brand)}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-note strong{display:block;color:var(--text-2);font-size:13.5px;margin-bottom:6px;font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3)}
.fb-left{display:flex;flex-wrap:wrap;gap:18px}

/* ---------- to top ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-glass);background:rgba(12,31,42,.92);color:var(--text-2);display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);transition:.24s ease-out;z-index:90}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand);border-color:rgba(22,194,166,.5)}
.to-top svg{width:18px;height:18px}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-wrap{grid-template-columns:minmax(0,760px);gap:44px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 280px}
  .nav-link{padding:8px 9px;font-size:13.8px}
  .brand-name{font-size:18px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:66px}
  .article-hero{padding:32px 0 26px}
  .article-side{flex-direction:column}
  .side-card{flex:1 1 auto}
  :root{--gap-section:64px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .article-title{font-size:clamp(23px,5.6vw,28px)}
  .article-body{font-size:15.8px;line-height:1.88}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .next-prev{grid-template-columns:1fr}
  .article-back{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column}
  .article-cover img{border-radius:14px}
  .btn{width:100%}
  .article-back .btn{width:auto}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .breadcrumb{font-size:12px}
  .article-meta{font-size:12.5px;gap:10px}
  .article-cover figcaption{font-size:11.5px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category1 */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg, rgba(26,58,66,.62), rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --success:#3DD68C;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(22,194,166,.35), 0 12px 32px rgba(22,194,166,.26);
  --inset-hi:inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.locked{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(22,194,166,.3);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:76px;display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.scrolled{
  height:64px;
  background:rgba(6,16,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:28px;height:28px;color:var(--brand);flex:none}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;border-radius:8px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:50%;
  color:var(--text-2);border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.04)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;place-items:center;border:1px solid var(--line-glass)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .22s var(--ease);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.menu-toggle.open span{background:transparent}
.menu-toggle.open span::before{transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 移动抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:99;
  background:rgba(5,12,18,.94);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  transform:translateY(-100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
  padding:96px 24px 32px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-label{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin-bottom:12px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:block;padding:16px 4px;font-size:18px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color .2s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand)}
.drawer-cta{margin-top:auto;padding-top:28px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;font-size:15px;
  padding:13px 28px;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn-primary{background:var(--brand);color:#04140F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{background:#1ED4B5;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,194,166,.5),0 18px 42px rgba(22,194,166,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border-color:rgba(22,194,166,.4);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(22,194,166,.08);transform:translateY(-1px);border-color:rgba(22,194,166,.65)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:500}
.link-arrow svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2)}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:132px 0 84px;
  background:
    radial-gradient(1100px 520px at 82% -12%, rgba(22,194,166,.11), transparent 62%),
    linear-gradient(180deg,#07161F 0%, var(--ink-900) 80%);
}
.page-hero::before{
  content:"";position:absolute;inset: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:40px 40px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%, transparent 72%);
  mask-image:linear-gradient(180deg,#000 0%, transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.status-strip{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px 6px 10px;border-radius:var(--r-pill);
  border:1px solid rgba(61,214,140,.28);background:rgba(61,214,140,.08);
  font-size:12.5px;color:var(--text-2);margin-bottom:22px;letter-spacing:.02em;
}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px rgba(61,214,140,.16);flex:none}
.status-strip b{color:var(--success);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.34);color:var(--brand);
  font-size:12px;letter-spacing:.08em;font-weight:600;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;margin-bottom:20px;
}
.page-hero h1 .hl{color:var(--brand)}
.hero-lead{font-size:16.5px;color:var(--text-2);line-height:1.9;max-width:600px}
.hero-lead + .hero-lead{margin-top:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.stat-num{display:block;font-size:clamp(26px,3.1vw,32px);font-weight:700;color:var(--accent);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.stat-num em{font-style:normal;font-size:.6em;margin-left:2px}
.stat-label{display:block;font-size:12.5px;color:var(--text-3);margin-top:6px}

.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inset-hi);
  aspect-ratio:4/3.2;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.72}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,12,18,.15),rgba(5,12,18,.72))}
.float-card{
  position:absolute;right:-14px;bottom:26px;z-index:2;
  padding:16px 20px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inset-hi);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  min-width:186px;
}
.float-card .fc-num{display:block;font-size:26px;font-weight:700;color:var(--accent);line-height:1.15;font-variant-numeric:tabular-nums}
.float-card .fc-num em{font-style:normal;font-size:.6em;margin-left:2px}
.float-card .fc-text{display:block;font-size:12px;color:var(--text-2);margin-top:4px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section[id]{scroll-margin-top:94px}
.section-head{max-width:720px;margin-bottom:44px}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:.12em;font-weight:600;
  color:var(--brand);margin-bottom:14px;
}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.28;margin-bottom:14px}
.section-desc{font-size:15.5px;color:var(--text-2);line-height:1.9}

/* ============ 分栏 + 侧边目录 ============ */
.split{display:grid;grid-template-columns:230px 1fr;gap:48px;align-items:start}
.toc{position:sticky;top:100px}
.toc-title{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin-bottom:16px}
.toc-link{
  display:block;position:relative;padding:11px 0 11px 16px;
  font-size:14.5px;color:var(--text-2);line-height:1.5;
  transition:color .2s var(--ease);
}
.toc-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:16px;border-radius:2px;background:rgba(255,255,255,.12);
  transition:background .2s var(--ease),height .2s var(--ease);
}
.toc-link:hover{color:var(--text)}
.toc-link:hover::before{background:rgba(22,194,166,.5)}
.toc-link.active{color:var(--brand);font-weight:600}
.toc-link.active::before{background:var(--brand);height:22px}
.toc-cta{
  margin-top:24px;padding:20px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inset-hi);
}
.toc-cta p{font-size:13px;color:var(--text-2);line-height:1.75;margin-bottom:14px}
.toc-cta .btn{width:100%;padding:10px 16px;font-size:13.5px}

/* ============ 大卡网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.big-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inset-hi),0 10px 30px rgba(0,0,0,.24);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.big-card:hover{
  transform:translateY(-4px);
  border-color:rgba(122,222,208,.3);
  box-shadow:var(--inset-hi),0 26px 54px rgba(0,0,0,.42);
}
.big-card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--ink-700)}
.big-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);opacity:.86}
.big-card:hover .big-card-media img{transform:scale(1.04)}
.big-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,12,18,0),rgba(5,12,18,.62))}
.big-card-no{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,194,166,.16);border:1px solid rgba(22,194,166,.3);
  color:var(--brand);font-size:12px;font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.big-card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.big-card-body h3{font-size:18px;font-weight:700;margin-bottom:10px}
.big-card-body > p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.point-list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px}
.point-list li{position:relative;padding-left:16px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;background:var(--brand);
}
.big-card-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}

/* ============ 交付流程 ============ */
.process{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  position:relative;padding:28px 24px 26px;
  border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inset-hi);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28)}
.step-bar{position:absolute;left:24px;right:24px;top:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),rgba(22,194,166,0))}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  background:rgba(22,194,166,.12);border:1px solid rgba(22,194,166,.24);
  color:var(--brand);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.step-card p{font-size:13.5px;color:var(--text-2);line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border-radius:var(--r-md);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--inset-hi);
  margin-bottom:12px;
  transition:border-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(122,222,208,.3)}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-idx{
  font-size:13px;color:var(--text-3);font-weight:600;
  font-variant-numeric:tabular-nums;flex:none;
}
.faq-q{flex:1}
.faq-ico{position:relative;width:16px;height:16px;flex:none}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;border-radius:2px;background:var(--text-2);
  transition:transform .2s var(--ease),background .2s var(--ease),opacity .2s var(--ease);
}
.faq-ico::before{left:0;top:7px;width:16px;height:2px}
.faq-ico::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-ico::before{background:var(--brand);transform:rotate(180deg)}
.faq-item[open] .faq-ico::after{opacity:0;transform:rotate(90deg)}
.faq-a{padding:0 24px 22px 61px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ============ CTA 横幅 ============ */
.cta-section{padding:0 0 96px}
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:52px 56px;border-radius:var(--r-xl);
  background:
    radial-gradient(720px 320px at 12% -30%, rgba(22,194,166,.16), transparent 65%),
    var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inset-hi);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 70%);
  mask-image:linear-gradient(90deg,#000,transparent 70%);
}
.cta-text{position:relative;max-width:620px}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;margin-bottom:12px}
.cta-text p{font-size:15px;color:var(--text-2);line-height:1.85}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* ============ 页脚 ============ */
.site-footer{
  background:#030A10;
  border-top:1px solid var(--line);
  padding:72px 0 28px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr .9fr 1.1fr;gap:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.9;margin-bottom:20px;max-width:360px}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--text-3)}
.footer-contact a{color:var(--text-2);transition:color .2s var(--ease)}
.footer-contact a:hover{color:var(--brand)}
.footer-contact .num{font-variant-numeric:tabular-nums}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column}
.footer-list a{
  display:block;position:relative;padding:7px 0 7px 0;
  font-size:13.5px;color:var(--text-2);line-height:1.6;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--brand);
  opacity:0;transition:opacity .2s var(--ease);
}
.footer-list a:hover{color:var(--text);padding-left:12px}
.footer-list a:hover::before{opacity:1}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-note strong{display:block;color:var(--text-2);font-weight:600;margin-bottom:6px;font-size:13.5px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}
.fb-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-figure{aspect-ratio:16/9;max-width:720px}
  .float-card{right:16px;bottom:16px}
  .split{grid-template-columns:1fr;gap:32px}
  .toc{position:static;display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px;
    padding:14px 18px;border-radius:var(--r-md);background:rgba(255,255,255,.03);border:1px solid var(--line)}
  .toc-title{margin:0;width:100%}
  .toc-link{padding:6px 0 6px 14px}
  .toc-cta{display:none}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .header-actions .icon-btn{display:none}
  .header-actions .btn-primary{display:none}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .page-hero{padding:112px 0 64px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:40px 32px;gap:28px}
  .cta-actions{width:100%}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:60px 0}
  .page-hero{padding:100px 0 56px}
  .hero-stats{gap:28px;margin-top:34px;padding-top:22px}
  .hero-actions .btn{flex:1 1 100%}
  .card-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .faq-item summary{padding:18px 18px;font-size:16px;gap:12px}
  .faq-a{padding:0 18px 20px 44px;font-size:14.5px}
  .cta-banner{padding:32px 24px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .big-card-body{padding:20px}
}
@media (max-width:479px){
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .float-card{right:10px;bottom:10px;padding:12px 14px;min-width:0}
  .float-card .fc-num{font-size:22px}
}

/* roulang page: category2 */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg, rgba(26,58,66,.62), rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --ok:#3DD68C;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh:0 24px 60px rgba(0,0,0,.45);
  --sh-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --sh-glow:0 0 0 1px rgba(22,194,166,.35), 0 12px 32px rgba(22,194,166,.26);
  --ease:cubic-bezier(.22,.8,.28,1);
  --max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}
.skip-link{position:absolute;left:-9999px;top:0;padding:10px 18px;background:var(--brand);color:#04140F;border-radius:0 0 var(--r-s) 0;z-index:200}
.skip-link:focus{left:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:76px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(6,16,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:none}
.brand-mark{width:28px;height:28px;color:var(--brand);flex:none}
.brand-name{font-size:19px;font-weight:700;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:var(--r-s);
  font-size:15px;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{flex:none;margin-left:8px}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-s);
  padding:11px;flex-direction:column;justify-content:space-between;
  border:1px solid var(--line-glass);background:rgba(255,255,255,.04);
}
.nav-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;transition:transform .22s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  position:fixed;inset:0;z-index:95;
  padding:96px 24px 36px;
  background:rgba(4,11,16,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
  overflow-y:auto;
}
.mobile-menu.is-open{opacity:1;visibility:visible;transform:none}
.mobile-menu .m-label{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin:6px 0 10px}
.mobile-menu a.m-link{
  display:block;font-size:18px;font-weight:600;color:var(--text);
  padding:14px 2px;border-bottom:1px solid var(--line);
}
.mobile-menu a.m-link:hover{color:var(--brand)}
.mobile-menu a.m-link.active{color:var(--brand)}
.mobile-menu .btn{margin-top:24px;width:100%}
body.menu-open{overflow:hidden}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:600;line-height:1;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#04140F;box-shadow:var(--sh-glow)}
.btn-primary:hover{background:#25D5B8;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,194,166,.45),0 16px 40px rgba(22,194,166,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(22,194,166,.4);color:var(--text)}
.btn-ghost:hover{background:rgba(22,194,166,.08);border-color:rgba(22,194,166,.72)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.link-more svg{transition:transform .2s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:142px 0 78px;background:var(--ink-900)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.32}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(620px 320px at 18% 8%, rgba(22,194,166,.16), transparent 70%),
    linear-gradient(180deg, rgba(5,12,18,.72) 0%, rgba(5,12,18,.9) 62%, var(--ink-900) 100%);
}
.hero-inner{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(--brand)}
.breadcrumb .bc-sep{color:var(--text-3)}
.breadcrumb .bc-current{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.live-bar{
  display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:8px 18px;margin-bottom:24px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-glass);
  background:var(--glass);
  box-shadow:var(--sh-inset);
  font-size:12.5px;color:var(--text-2);
}
.live-bar b{color:var(--accent);font-variant-numeric:tabular-nums}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(61,214,140,.16);flex:none}
.live-sep{width:1px;height:12px;background:var(--line)}

.hero-title{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:800;line-height:1.2;
  letter-spacing:-.01em;
  max-width:20em;
}
.hero-lead{
  margin-top:22px;max-width:46em;
  font-size:16.5px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;margin-top:46px;max-width:760px;
}
.metric{
  padding:16px 20px;border-radius:var(--r-m);
  border:1px solid var(--line-glass);background:var(--glass);box-shadow:var(--sh-inset);
}
.metric-num{font-size:28px;font-weight:700;color:var(--accent);line-height:1.15;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.metric-num small{font-size:14px;font-weight:600;margin-left:2px}
.metric-label{font-size:12.5px;color:var(--text-3);margin-top:4px}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--ink-800)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.32);background:rgba(22,194,166,.08);
}
.section-title{font-size:clamp(26px,3.2vw,38px);margin-top:18px;line-height:1.25}
.section-sub{margin-top:16px;font-size:16px;color:var(--text-2);max-width:62ch}

/* 左右分栏 */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.split-title{font-size:clamp(24px,2.8vw,32px);line-height:1.3}
.split-note{margin-top:16px;font-size:15px;color:var(--text-2)}

.check-list{display:grid;gap:14px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 22px;border-radius:var(--r-m);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.check-item:hover{border-color:rgba(122,222,208,.3);background:rgba(255,255,255,.04);transform:translateY(-2px)}
.check-dot{width:8px;height:8px;border-radius:2px;background:var(--brand);margin-top:10px;flex:none}
.check-body h3{font-size:16.5px;margin-bottom:6px}
.check-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:12px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg, rgba(22,194,166,.62), rgba(22,194,166,.06));
}
.step{position:relative;padding:0 0 30px 78px}
.step:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  font-size:15px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
  background:linear-gradient(160deg, rgba(26,58,66,.95), rgba(9,24,32,.98));
  border:1px solid var(--line-glass);
  box-shadow:var(--sh-inset),0 10px 26px rgba(0,0,0,.4);
}
.step-card{
  padding:24px 26px;border-radius:var(--r-l);
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--sh-inset);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step-card:hover{transform:translateY(-3px);border-color:rgba(122,222,208,.3);box-shadow:var(--sh-inset),var(--sh)}
.step-card h3{font-size:19px;margin-bottom:10px}
.step-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;color:var(--brand);
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,194,166,.12);border:1px solid rgba(22,194,166,.22);
}
.tag-warm{color:var(--accent);background:rgba(255,196,107,.1);border-color:rgba(255,196,107,.24)}

/* ============ 场景卡 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  border-radius:var(--r-l);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-glass);
  box-shadow:var(--sh-inset);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.3);box-shadow:var(--sh-inset),var(--sh)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease),opacity .28s var(--ease);opacity:.92}
.card:hover .card-media img{transform:scale(1.04);opacity:1}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.card-foot{margin-top:auto;padding-top:6px}

/* ============ 数据条 ============ */
.stat-band{
  background:#040A0E;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:48px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;text-align:center}
.stat-num{
  font-size:clamp(34px,3.8vw,46px);font-weight:700;line-height:1.1;
  color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px;color:var(--accent)}
.stat-label{font-size:13px;color:var(--text-2);margin-top:8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  border-radius:var(--r-m);border:1px solid var(--line-glass);
  background:var(--glass);box-shadow:var(--sh-inset);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(122,222,208,.32)}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-idx{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;flex:none;letter-spacing:.06em}
.faq-q{flex:1;line-height:1.5}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform .2s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 22px 50px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ CTA 横幅 ============ */
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--r-xl);
  border:1px solid var(--line-glass);
  background:var(--glass);box-shadow:var(--sh-inset);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 220px at 88% 20%, rgba(22,194,166,.14), transparent 70%);
}
.cta-copy{position:relative;z-index:1;max-width:60ch}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--text-2)}
.cta-actions{position:relative;z-index:1;flex:none;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;padding:64px 0 28px;
  background:#030A0F;border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:40ch}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:20px;font-size:14px;color:var(--text-2)}
.footer-contact a{color:var(--text)}
.footer-contact a:hover{color:var(--brand)}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text)}
.footer-list{display:flex;flex-direction:column}
.footer-list a{
  position:relative;display:inline-block;font-size:14px;line-height:34px;color:var(--text-2);
  padding-left:0;transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-list a::before{
  content:"";position:absolute;left:0;top:50%;width:5px;height:5px;border-radius:50%;
  background:var(--brand);transform:translateY(-50%) scale(.4);opacity:0;
  transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.footer-list a:hover{color:var(--text);padding-left:12px}
.footer-list a:hover::before{opacity:1;transform:translateY(-50%) scale(1)}
.footer-note{font-size:13.5px;line-height:1.85;color:var(--text-2)}
.footer-note strong{display:block;color:var(--text);font-size:14px;margin-bottom:6px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.fb-left{display:flex;gap:18px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 24px}
  .split{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .main-nav,.header-actions{display:none}
  .nav-toggle{display:flex}
  .site-header{height:64px}
  .page-hero{padding:118px 0 62px}
  .section{padding:72px 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
  .hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .faq-a{padding-left:22px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .hero-metrics{grid-template-columns:1fr 1fr;max-width:none}
  .grid-3{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .timeline::before{left:20px}
  .step{padding-left:56px;padding-bottom:24px}
  .step-num{width:42px;height:42px;font-size:13px}
  .step-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px}
  .live-bar{font-size:12px;gap:8px;padding:8px 14px}
  .hero-lead{font-size:15.5px}
}
@media (max-width:519px){
  .hero-metrics{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr;gap:26px}
  .breadcrumb .bc-current{max-width:24ch}
  .faq-item summary{font-size:16px;padding:16px 18px;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg,rgba(26,58,66,.62),rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-sm:0 10px 30px rgba(0,0,0,.28);
  --container:1240px;
  --header-h:76px;
  --ease:cubic-bezier(.33,.8,.4,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--ink-900);
  background-image:
    radial-gradient(1100px 520px at 82% -12%,rgba(22,194,166,.10),transparent 62%),
    radial-gradient(760px 420px at -8% 18%,rgba(22,194,166,.05),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,ul,ol,dl{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:visited{color:var(--brand);}
a:hover{color:#3FE0C2;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
.num,strong{font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#1FD3B4,var(--brand));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(22,194,166,.35),0 12px 32px rgba(22,194,166,.26);
}
.btn-primary:visited{color:#04140F;}
.btn-primary:hover{
  color:#04140F;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(22,194,166,.5),0 18px 40px rgba(22,194,166,.38);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,194,166,.35),0 4px 14px rgba(22,194,166,.2);}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(22,194,166,.42);
}
.btn-ghost:visited{color:var(--text);}
.btn-ghost:hover{background:rgba(22,194,166,.10);color:#EAFFFB;border-color:rgba(22,194,166,.7);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:var(--header-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),backdrop-filter .22s var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(6,16,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:visited{color:var(--text);}
.brand:hover{color:#fff;}
.brand-mark{width:30px;height:30px;color:var(--brand);flex:0 0 auto;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 12px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease),background-color .2s var(--ease);
  white-space:nowrap;
}
.nav-link:visited{color:var(--text-2);}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px var(--glow);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s var(--ease),opacity .18s var(--ease);}
.nav-toggle:hover{border-color:rgba(22,194,166,.5);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:99;
  display:none;
  background:rgba(5,12,18,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:22px 22px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .m-link.active{color:var(--brand);}
.mobile-drawer .m-cta{margin-top:26px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:calc(var(--header-h) + 28px) 0 0;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb-list a{color:var(--text-3);}
.crumb-list a:hover{color:var(--brand);}
.crumb-list .sep{color:rgba(255,255,255,.22);}
.crumb-list .cur{color:var(--text-2);}

/* ---------- Hero ---------- */
.hero{padding:34px 0 84px;position:relative;}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.09),transparent);
}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.4);
  background:rgba(22,194,166,.07);
  font-size:12px;letter-spacing:.08em;color:#8FE9DA;font-weight:600;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--glow);}
.hero h1{
  margin-top:22px;
  font-size:clamp(32px,4.4vw,52px);
  font-weight:800;line-height:1.18;letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{margin-top:20px;max-width:34em;font-size:16px;color:var(--text-2);line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:34px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.metric strong{display:block;font-size:30px;font-weight:800;line-height:1.1;color:var(--accent);}
.metric strong span{font-size:16px;font-weight:700;margin-left:2px;}
.metric em{display:block;margin-top:6px;font-style:normal;font-size:12.5px;color:var(--text-3);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-glass);box-shadow:var(--shadow);}
.hero-media::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);z-index:2;}
.hero-media img{width:100%;height:420px;object-fit:cover;background:var(--ink-700);}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,12,18,.15),rgba(5,12,18,.62));pointer-events:none;}
.hero-float{
  position:absolute;right:18px;top:18px;z-index:3;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-md);
  border:1px solid var(--line-glass);
  background:linear-gradient(160deg,rgba(26,58,66,.9),rgba(9,24,32,.92));
  box-shadow:var(--shadow-sm);
}
.hero-float strong{display:block;font-size:20px;font-weight:800;color:var(--accent);line-height:1.2;}
.hero-float span{display:block;font-size:11.5px;color:var(--text-3);line-height:1.5;max-width:11em;}
.dot-live{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,214,140,.16);flex:0 0 auto;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-deep{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:#7FE3D3;text-transform:uppercase;
}
.sec-tag::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section-head.center .sec-tag::after{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);}
.section h2{margin-top:14px;font-size:clamp(26px,3.1vw,38px);font-weight:800;line-height:1.25;letter-spacing:-.005em;}
.section .lead{margin-top:16px;font-size:15.5px;color:var(--text-2);line-height:1.9;}

/* ---------- 规格对照表 ---------- */
.table-wrap{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--ink-800);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.spec-table{width:100%;min-width:880px;border-collapse:collapse;font-size:14.5px;}
.spec-table thead th{
  text-align:left;padding:18px 22px;
  font-size:12.5px;letter-spacing:.1em;font-weight:700;
  color:var(--text-3);text-transform:uppercase;
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.spec-table tbody td{
  padding:20px 22px;vertical-align:top;
  color:var(--text-2);line-height:1.8;
  border-bottom:1px solid var(--line);
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.spec-table tbody tr:hover{background:rgba(22,194,166,.06);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table td:first-child{
  background:rgba(22,194,166,.08);
  color:var(--text);font-weight:700;white-space:nowrap;
  border-right:1px solid var(--line-glass);
  box-shadow:inset 3px 0 0 var(--brand);
}
.spec-table thead th:first-child{
  background:rgba(22,194,166,.12);color:#9CEEE2;
  border-right:1px solid var(--line-glass);
  box-shadow:inset 3px 0 0 var(--brand);
}
.spec-table td strong{color:var(--accent);font-weight:700;}
.table-hint{display:none;margin-top:12px;font-size:12.5px;color:var(--text-3);text-align:center;}

/* ---------- 档位卡片 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.tier{
  position:relative;padding:28px;border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tier:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow);}
.tier h3{font-size:19px;font-weight:700;line-height:1.4;}
.tier .tier-sub{margin-top:6px;font-size:13px;color:var(--text-3);}
.tier ul{margin-top:18px;display:grid;gap:10px;}
.tier li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.tier li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.tier .tier-foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--text-3);}
.tier .tier-foot b{color:var(--accent);font-variant-numeric:tabular-nums;}

/* ---------- 能力卡 ---------- */
.ability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ability{
  padding:26px;border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.ability:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow);}
.ability .ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,194,166,.28);background:rgba(22,194,166,.10);color:var(--brand);
}
.ability h3{margin-top:18px;font-size:18px;font-weight:700;line-height:1.45;}
.ability p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.85;}
.ability .meta{margin-top:16px;font-size:12.5px;color:var(--text-3);}
.ability .meta b{color:var(--accent);font-variant-numeric:tabular-nums;}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:flow;}
.flow-item{
  position:relative;padding:26px 24px 24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  transition:border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.flow-item:hover{border-color:rgba(22,194,166,.35);background:rgba(22,194,166,.05);transform:translateY(-3px);}
.flow-item .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;
  font-size:13px;font-weight:800;letter-spacing:.02em;
  color:#04140F;background:linear-gradient(180deg,#1FD3B4,var(--brand));
  box-shadow:0 8px 20px rgba(22,194,166,.24);
  font-variant-numeric:tabular-nums;
}
.flow-item h3{margin-top:16px;font-size:17px;font-weight:700;}
.flow-item p{margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.85;}
.flow-item .dur{margin-top:14px;font-size:12.5px;color:var(--text-3);}
.flow-item .dur b{color:var(--accent);font-variant-numeric:tabular-nums;}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.scene{
  display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:center;
  padding:18px;border-radius:var(--r-lg);
  border:1px solid var(--line-glass);
  background:var(--glass);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.scene:hover{transform:translateY(-4px);border-color:rgba(122,222,208,.28);box-shadow:var(--shadow);}
.scene img{width:150px;height:118px;object-fit:cover;border-radius:var(--r-md);background:var(--ink-700);}
.scene h3{font-size:17px;font-weight:700;line-height:1.45;}
.scene p{margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line-glass);
  border-radius:var(--r-md);
  background:var(--glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item:hover{border-color:rgba(122,222,208,.26);}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 22px;text-align:left;
  color:var(--text);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-btn .idx{font-size:13px;font-weight:700;color:var(--text-3);font-variant-numeric:tabular-nums;flex:0 0 auto;}
.faq-btn .qt{flex:1 1 auto;}
.faq-btn .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(22,194,166,.4);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-btn .sign svg{width:13px;height:13px;}
.faq-item.open .faq-btn .sign{transform:rotate(45deg);background:rgba(22,194,166,.12);}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-panel .inner{padding:0 22px 22px 58px;font-size:15px;line-height:1.88;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px;}
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--r-xl);
  border:1px solid var(--line-glass);
  background:linear-gradient(140deg,rgba(26,58,66,.7),rgba(9,24,32,.86));
  box-shadow:var(--shadow);
}
.cta-banner::before{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,194,166,.16),transparent 68%);
  pointer-events:none;
}
.cta-banner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3;position:relative;}
.cta-banner p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:46em;position:relative;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;flex:0 0 auto;}
.cta-note{margin-top:14px;font-size:12.5px;color:var(--text-3);position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04090E;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.9;max-width:34em;}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:13.5px;color:var(--text-3);}
.footer-contact a{color:var(--text-2);}
.footer-contact a:hover{color:var(--brand);}
.footer-contact .num{color:var(--accent);font-weight:700;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:14px;text-transform:uppercase;}
.footer-list{display:grid;gap:2px;}
.footer-list a{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 0;font-size:14px;line-height:1.6;color:var(--text-2);
}
.footer-list a::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);
  opacity:0;transform:translateX(-4px);transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.footer-list a:hover{color:var(--text);}
.footer-list a:hover::before{opacity:1;transform:translateX(0);}
.footer-note{
  font-size:13px;color:var(--text-2);line-height:1.85;
  padding:16px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
}
.footer-note strong{display:block;color:var(--text);font-size:13.5px;margin-bottom:6px;}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-3);
}
.fb-left{display:flex;flex-wrap:wrap;gap:18px;}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-glass);
  background:rgba(12,31,42,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  color:var(--text-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),color .2s var(--ease),border-color .2s var(--ease),visibility .22s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand);border-color:rgba(22,194,166,.5);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .hero-grid{gap:38px;}
  .hero-media img{height:380px;}
  .main-nav{gap:0;}
  .nav-link{padding:10px 9px;font-size:13.5px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  :root{--header-h:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .hero{padding:24px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media img{height:300px;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .ability-grid{grid-template-columns:repeat(2,1fr);}
  .tier-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr;}
  .table-hint{display:block;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-section{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:auto;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  body{font-size:15.5px;}
  .hero h1{font-size:clamp(28px,7.2vw,34px);letter-spacing:0;}
  .hero-sub{font-size:14.5px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:20px 26px;}
  .metric strong{font-size:24px;}
  .hero-media img{height:240px;}
  .hero-float{right:12px;top:12px;padding:10px 12px;}
  .hero-float strong{font-size:16px;}
  .section{padding:56px 0;}
  .ability-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .scene{grid-template-columns:1fr;padding:16px;}
  .scene img{width:100%;height:170px;}
  .faq-btn{font-size:15.5px;padding:18px 16px;gap:12px;}
  .faq-panel .inner{padding:0 16px 20px 44px;font-size:14.5px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .to-top{right:16px;bottom:16px;}
  .spec-table{min-width:760px;}
}
@media (max-width:479px){
  .hero-float{display:none;}
  .eyebrow{font-size:11px;padding:6px 12px;}
}

/* roulang page: category4 */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg,rgba(26,58,66,.62),rgba(9,24,32,.74));
  --line-glass:rgba(122,222,208,.14);
  --line-glass-strong:rgba(122,222,208,.28);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --muted:#A6BEC4;
  --dim:#6D858D;
  --line:rgba(255,255,255,.08);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --inner-hi:inset 0 1px 0 rgba(255,255,255,.06);
  --glow-shadow:0 0 0 1px rgba(22,194,166,.35),0 12px 32px rgba(22,194,166,.26);
  --container:1240px;
  --pad:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.menu-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(22,194,166,.28);color:#fff}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

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

/* ---------- topbar ---------- */
.topbar{
  background:rgba(8,21,31,.9);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:42px;
}
.topbar-live{display:flex;align-items:center;gap:10px}
.live-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(22,194,166,.16),0 0 12px rgba(22,194,166,.7);
  flex:0 0 auto;
}
.topbar-live strong{color:var(--text);font-weight:600}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right .sep{width:1px;height:12px;background:var(--line)}
.topbar-right .accent{color:var(--accent);font-weight:600}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  transition:box-shadow .22s ease-out;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(6,16,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  opacity:0;
  transition:opacity .22s ease-out,border-color .22s ease-out;
  pointer-events:none;
}
.site-header.scrolled::before{opacity:1;border-bottom-color:var(--line)}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height .22s ease-out;
}
.site-header.scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;color:var(--brand)}
.brand-name{
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text);
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  font-size:15px;
  color:var(--muted);
  border-radius:var(--r-pill);
  transition:color .18s ease-out,background .18s ease-out;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px var(--glow);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-glass);
  background:rgba(255,255,255,.04);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:1.8px;
  background:var(--text);
  border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
body.menu-open .nav-toggle span:nth-child(2){opacity:0}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:130;
  display:none;
  padding:88px 24px 32px;
  background:rgba(4,10,16,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  overflow-y:auto;
}
body.menu-open .mobile-drawer{display:block}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:28px}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:15px 4px;
  font-size:18px;
  font-weight:600;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand)}
.drawer-nav a svg{width:16px;height:16px;opacity:.5}
.drawer-cta{display:block;width:100%;text-align:center}
.drawer-note{margin-top:18px;font-size:13px;color:var(--dim);line-height:1.8}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn svg{width:16px;height:16px;transition:transform .18s ease-out}
.btn-primary{
  background:var(--brand);
  color:#04140F;
  box-shadow:var(--glow-shadow);
}
.btn-primary:hover{
  background:#1FD4B5;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(22,194,166,.5),0 16px 40px rgba(22,194,166,.36);
}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{
  background:transparent;
  border-color:rgba(22,194,166,.4);
  color:#CBEDE7;
}
.btn-ghost:hover{background:rgba(22,194,166,.08);border-color:rgba(22,194,166,.7)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
}
.link-arrow svg{width:14px;height:14px;transition:transform .18s ease-out}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--dim);
  padding-top:28px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--dim);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .slash{opacity:.5}
.breadcrumb .current{color:var(--muted);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding-bottom:8px;overflow:hidden}
.page-hero::before{
  content:"";
  position:absolute;
  top:-180px;right:-120px;
  width:620px;height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(22,194,166,.14),rgba(22,194,166,0) 68%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  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:40px 40px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
  padding:44px 0 8px;
}
.hero-copy{grid-column:span 6}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.4);
  background:rgba(22,194,166,.08);
  color:#9CEBDD;
  font-size:12px;
  letter-spacing:.08em;
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--glow)}
.page-hero h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{
  font-size:16px;
  color:var(--muted);
  line-height:1.9;
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{
  grid-column:span 6;
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inner-hi);
  overflow:hidden;
  min-height:340px;
}
.hero-media img{
  width:100%;
  height:100%;
  min-height:340px;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,12,18,.15),rgba(5,12,18,.78));
}
.float-card{
  position:absolute;
  right:18px;
  top:18px;
  z-index:2;
  padding:14px 18px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inner-hi);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  min-width:150px;
}
.float-card .fc-num{
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
  line-height:1.2;
}
.float-card .fc-num small{font-size:13px;font-weight:600;margin-left:2px}
.float-card .fc-label{font-size:12px;color:var(--muted);margin-top:2px}

.stat-strip{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin:36px 0 8px;
}
.stat-item{
  padding:20px 22px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inner-hi);
}
.stat-item .s-num{
  font-size:30px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
  line-height:1.2;
}
.stat-item .s-num small{font-size:14px;font-weight:600;margin-left:3px;color:var(--accent)}
.stat-item .s-label{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--ink-800)}
.section-head{max-width:760px;margin-bottom:48px}
.section-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--brand);
  margin-bottom:14px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:rgba(22,194,166,.12);
  border:1px solid rgba(22,194,166,.22);
}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;line-height:1.9}

/* ---------- zigzag ---------- */
.zigzag{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
  padding:36px 0;
  border-bottom:1px solid var(--line);
}
.zigzag:last-child{border-bottom:none}
.zigzag-media{
  grid-column:span 5;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line-glass);
  box-shadow:var(--inner-hi);
  position:relative;
  height:330px;
}
.zigzag-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease-out;
}
.zigzag-media:hover img{transform:scale(1.04)}
.zigzag-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,12,18,0),rgba(5,12,18,.55));
  transition:opacity .25s ease-out;
}
.zigzag-media:hover::after{opacity:.6}
.zigzag-body{grid-column:span 7;padding:0 8px}
.zigzag.reverse .zigzag-media{order:2}
.zigzag.reverse .zigzag-body{order:1}
.zigzag-body .z-tag{
  display:inline-block;
  font-size:12px;
  color:#9CEBDD;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:rgba(22,194,166,.12);
  border:1px solid rgba(22,194,166,.24);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.zigzag-body h3{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:14px;
}
.zigzag-body p{color:var(--muted);font-size:15.5px;line-height:1.9;margin-bottom:18px}
.point-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin-bottom:22px}
.point-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 8px rgba(22,194,166,.6);
}

/* ---------- process cards ---------- */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step-card{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inner-hi);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  display:flex;
  flex-direction:column;
  height:100%;
}
.step-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-glass-strong);
  box-shadow:0 24px 50px rgba(0,0,0,.5),var(--inner-hi);
}
.step-num{
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:.14em;
  margin-bottom:12px;
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.45}
.step-card p{font-size:14px;color:var(--muted);line-height:1.85;flex:1}
.step-meta{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}

/* ---------- resource panel ---------- */
.resource-wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:32px;
  align-items:start;
}
.check-list{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--muted);
}
.check-list li:last-child{border-bottom:none}
.check-list .ic{
  flex:0 0 auto;
  width:22px;height:22px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(22,194,166,.14);
  color:var(--brand);
  margin-top:5px;
}
.check-list .ic svg{width:12px;height:12px}
.check-list strong{color:var(--text);font-weight:600}

.panel{
  padding:28px 26px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inner-hi);
}
.panel h3{font-size:19px;font-weight:700;margin-bottom:8px}
.panel .panel-sub{font-size:14px;color:var(--muted);margin-bottom:22px;line-height:1.8}
.progress-track{
  height:8px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);
  overflow:hidden;
  margin:10px 0 8px;
}
.progress-fill{
  height:100%;
  width:30%;
  border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--brand-600),var(--brand));
  box-shadow:0 0 14px var(--glow);
}
.progress-meta{
  display:flex;
  justify-content:space-between;
  font-size:13px;
  color:var(--dim);
  margin-bottom:22px;
}
.progress-meta strong{color:var(--accent);font-variant-numeric:tabular-nums}
.panel-divider{height:1px;background:var(--line);margin:22px 0}
.panel-note{font-size:13px;color:var(--dim);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inner-hi);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item:hover{border-color:var(--line-glass-strong)}
.faq-item.open{border-color:var(--line-glass-strong)}
.faq-q{
  display:flex;
  align-items:flex-start;
  gap:16px;
  width:100%;
  padding:20px 22px;
  text-align:left;
}
.faq-idx{
  font-size:13px;
  font-weight:700;
  color:var(--dim);
  font-variant-numeric:tabular-nums;
  letter-spacing:.1em;
  padding-top:4px;
  flex:0 0 auto;
}
.faq-title{
  flex:1;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  margin-top:6px;
  color:var(--brand);
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
}
.faq-icon::before{left:2px;right:2px;top:10px;height:2px}
.faq-icon::after{top:2px;bottom:2px;left:10px;width:2px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{
  display:none;
  padding:0 22px 22px 58px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.faq-item.open .faq-a{display:block}

/* ---------- CTA banner ---------- */
.cta-section{position:relative;padding:80px 0 96px;overflow:hidden}
.cta-section::before{
  content:"";
  position:absolute;
  left:50%;top:0;
  transform:translateX(-50%);
  width:880px;height:420px;
  background:radial-gradient(ellipse at center,rgba(22,194,166,.12),rgba(22,194,166,0) 70%);
  pointer-events:none;
}
.cta-banner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:38px 40px;
  border-radius:var(--r-xl);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inner-hi);
}
.cta-banner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-banner p{font-size:15px;color:var(--muted);line-height:1.85;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  background:#03090E;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.9;max-width:360px}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:20px;font-size:13.5px;color:var(--dim)}
.footer-contact a{color:var(--muted);transition:color .18s ease-out}
.footer-contact a:hover{color:var(--brand)}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-list{display:flex;flex-direction:column}
.footer-list a{
  display:inline-block;
  padding:7px 0;
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease-out,padding-left .18s ease-out;
  position:relative;
}
.footer-list a:hover{color:var(--text);padding-left:10px}
.footer-list a:hover::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:4px;height:4px;
  margin-top:-2px;
  border-radius:50%;
  background:var(--brand);
}
.footer-note{font-size:13.5px;color:var(--dim);line-height:1.9}
.footer-note strong{display:block;color:var(--muted);font-weight:600;margin-bottom:6px;font-size:14px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--dim);
}
.fb-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fb-left .sep{width:1px;height:12px;background:var(--line)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--pad:24px}
  .nav-link{padding:9px 10px;font-size:14px}
  .brand-name{font-size:18px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
  .hero-grid{grid-template-columns:1fr;padding-top:32px}
  .hero-copy,.hero-media{grid-column:1 / -1}
  .hero-media,.hero-media img{min-height:260px;height:260px}
  .zigzag{grid-template-columns:1fr;gap:20px;padding:32px 0}
  .zigzag-media,.zigzag-body{grid-column:1 / -1}
  .zigzag.reverse .zigzag-media{order:0}
  .zigzag.reverse .zigzag-body{order:0}
  .zigzag-media{height:260px}
  .zigzag-body{padding:0}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .resource-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand p{max-width:none}
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:30px 26px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 200px}
}
@media (max-width:767px){
  :root{--pad:18px}
  body{font-size:15.5px}
  .topbar-right .hide-sm{display:none}
  .topbar-right .sep.hide-sm{display:none}
  .topbar-inner{min-height:38px;font-size:12.5px}
  .stat-strip{grid-template-columns:1fr;margin-top:24px}
  .stat-item{padding:16px 18px}
  .stat-item .s-num{font-size:26px}
  .hero-actions{width:100%}
  .hero-actions .btn{flex:1 1 100%}
  .point-list{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .faq-q{padding:18px 16px;gap:12px}
  .faq-title{font-size:16px}
  .faq-a{padding:0 16px 20px 46px;font-size:14.5px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .cta-section{padding:56px 0 64px}
  .page-hero h1{font-size:clamp(26px,6.4vw,32px)}
  .breadcrumb{padding-top:20px}
}
@media (max-width:479px){
  .brand-name{font-size:16px}
  .brand-mark{width:26px;height:26px}
  .zigzag-body h3{font-size:19px}
  .cta-actions .btn{width:100%;flex:1 1 100%}
}

/* roulang page: category5 */
:root{
  --ink-900:#050C12;
  --ink-800:#08151F;
  --ink-750:#0A1A24;
  --ink-700:#0C1F2A;
  --glass:linear-gradient(160deg,rgba(26,58,66,.62),rgba(9,24,32,.74));
  --glass-soft:linear-gradient(160deg,rgba(26,58,66,.42),rgba(9,24,32,.58));
  --line-glass:rgba(122,222,208,.14);
  --line-glass-hover:rgba(122,222,208,.30);
  --brand:#16C2A6;
  --brand-600:#0E9C87;
  --glow:rgba(22,194,166,.42);
  --accent:#FFC46B;
  --text:#E9F4F3;
  --text-2:#A6BEC4;
  --text-3:#6D858D;
  --line:rgba(255,255,255,.08);
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --shadow-soft:0 14px 36px rgba(0,0,0,.32);
  --inset:inset 0 1px 0 rgba(255,255,255,.06);
  --glow-shadow:0 0 0 1px rgba(22,194,166,.35),0 12px 32px rgba(22,194,166,.26);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
a:visited{color:inherit;}
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;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(22,194,166,.32);color:#fff;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);color:#04140F;
  box-shadow:var(--glow-shadow);
}
.btn-primary:hover{background:#1BD3B5;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,194,166,.5),0 16px 38px rgba(22,194,166,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,194,166,.3);}
.btn-primary:disabled{opacity:.45;box-shadow:none;}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(22,194,166,.40);
}
.btn-ghost:hover{background:rgba(22,194,166,.08);border-color:rgba(22,194,166,.7);color:#fff;}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform .2s ease-out;}
.link-arrow:hover{color:#3EE0C7;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:76px;
  background:transparent;
  transition:height .22s ease-out,background .22s ease-out,border-color .22s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:64px;
  background:rgba(6,16,24,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:100%;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:30px;height:30px;color:var(--brand);flex-shrink:0;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.brand:hover .brand-name{color:#fff;}

.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  border-radius:var(--r-sm);
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease-out;
  opacity:.9;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.active{color:#fff;font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line-glass);
  background:rgba(255,255,255,.04);
  color:var(--text);
}
.menu-toggle svg{width:22px;height:22px;}
.menu-toggle .icon-close{display:none;}
.menu-toggle.open .icon-menu{display:none;}
.menu-toggle.open .icon-close{display:block;}

/* ============ 移动抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:85;
  background:rgba(5,12,18,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:96px 24px 32px;
  display:flex;flex-direction:column;
  opacity:0;pointer-events:none;
  transform:translateY(-10px);
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.mobile-drawer.open{opacity:1;pointer-events:auto;transform:translateY(0);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;overflow-y:auto;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;
  font-size:18px;font-weight:600;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:#fff;}
.drawer-link.active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--brand);margin-right:10px;box-shadow:0 0 10px var(--glow);
}
.drawer-cta{margin-top:24px;}
.drawer-note{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7;}

/* ============ 主区域 ============ */
main{padding-top:76px;}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:rgba(255,255,255,.2);}
.breadcrumb [aria-current]{color:var(--text-2);}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;
  padding:26px 0 84px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  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:40px 40px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:-160px;right:-120px;width:640px;height:640px;
  background:radial-gradient(circle,rgba(22,194,166,.08),transparent 62%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
  margin-top:34px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(22,194,166,.36);
  background:rgba(22,194,166,.08);
  color:#5FE6D0;font-size:12px;font-weight:600;letter-spacing:.08em;
}
.eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px var(--glow);
}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.24;letter-spacing:-.01em;
  color:#fff;
}
.hero-lead{
  margin-top:20px;
  font-size:16px;line-height:1.9;color:var(--text-2);
  max-width:600px;
}
.hero-lead strong{color:#CFE7E4;font-weight:600;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

.hero-panel{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid var(--line-glass);
  box-shadow:var(--shadow),var(--inset);
  overflow:hidden;
  background:var(--ink-800);
}
.hero-panel img{
  width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;
  opacity:.92;
}
.hero-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,12,18,.12),rgba(5,12,18,.66));
  pointer-events:none;
}
.stat-float{
  position:absolute;right:16px;top:16px;z-index:2;
  display:flex;flex-direction:column;gap:2px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(8,21,31,.82);
  border:1px solid var(--line-glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--inset);
}
.stat-float .num{font-size:26px;font-weight:800;color:var(--accent);line-height:1.1;}
.stat-float .unit{font-size:13px;font-weight:600;margin-left:2px;}
.stat-float .lbl{font-size:12px;color:var(--text-3);}

.hero-stats{
  position:relative;z-index:1;
  margin-top:52px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.hs{
  padding:22px 24px;
  border-radius:var(--r-md);
  background:var(--glass-soft);
  border:1px solid var(--line-glass);
  box-shadow:var(--inset);
}
.hs .num{display:block;font-size:clamp(26px,2.6vw,34px);font-weight:800;color:var(--accent);line-height:1.15;}
.hs .num .unit{font-size:.56em;font-weight:700;margin-left:3px;}
.hs .lbl{display:block;margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.6;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--brand);margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(26px,2.9vw,38px);
  font-weight:800;line-height:1.28;color:#fff;letter-spacing:-.005em;
}
.section-head p{margin-top:16px;font-size:15.5px;line-height:1.9;color:var(--text-2);}

/* ============ 折叠列表（主模块） ============ */
.acc-list{display:flex;flex-direction:column;gap:12px;}
.acc-item{
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inset);
  transition:border-color .22s ease-out,box-shadow .22s ease-out,transform .22s ease-out;
  overflow:hidden;
}
.acc-item:hover{border-color:var(--line-glass-hover);}
.acc-item.open{
  border-color:var(--line-glass-hover);
  box-shadow:var(--shadow-soft),var(--inset);
}
.acc-head{
  display:flex;align-items:center;gap:18px;
  width:100%;text-align:left;
  padding:22px 26px;
}
.acc-num{
  flex-shrink:0;
  font-size:14px;font-weight:700;color:var(--text-3);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  transition:color .22s ease-out;
}
.acc-item.open .acc-num{color:var(--brand);}
.acc-title-wrap{flex:1;min-width:0;}
.acc-title{font-size:18px;font-weight:700;color:#fff;line-height:1.45;}
.acc-sub{margin-top:5px;font-size:13.5px;color:var(--text-3);line-height:1.6;}
.acc-icon{
  flex-shrink:0;width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-glass);
  color:var(--brand);
  transition:transform .22s ease-out,background .22s ease-out,border-color .22s ease-out;
}
.acc-item.open .acc-icon{transform:rotate(45deg);background:rgba(22,194,166,.12);border-color:rgba(22,194,166,.45);}
.acc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease-out;}
.acc-item.open .acc-body{grid-template-rows:1fr;}
.acc-body-inner{overflow:hidden;}
.acc-content{
  padding:0 26px 26px 74px;
  border-top:1px solid var(--line);
  margin-top:2px;
  padding-top:20px;
}
.acc-content p{font-size:15px;line-height:1.9;color:var(--text-2);}
.acc-points{
  margin-top:16px;
  display:grid;grid-template-columns:1fr 1fr;gap:10px 26px;
}
.acc-points li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--text-2);line-height:1.75;
}
.acc-points li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.acc-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(22,194,166,.10);
  border:1px solid rgba(22,194,166,.22);
  color:#66E3CF;font-size:12px;font-weight:600;line-height:1.4;
}
.chip-accent{background:rgba(255,196,107,.10);border-color:rgba(255,196,107,.28);color:var(--accent);}

/* ============ 条目卡 ============ */
.entry-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.entry-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--line-glass);
  box-shadow:var(--inset);
  overflow:hidden;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-glass-hover);
  box-shadow:var(--shadow);
}
.entry-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--ink-700);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.entry-card:hover .entry-media img{transform:scale(1.04);}
.entry-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,12,18,.06),rgba(5,12,18,.5));
  transition:opacity .22s ease-out;
}
.entry-card:hover .entry-media::after{opacity:.7;}
.entry-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(5,12,18,.72);
  border:1px solid rgba(22,194,166,.32);
  color:#66E3CF;font-size:12px;font-weight:600;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.entry-body h3{font-size:18px;font-weight:700;line-height:1.5;color:#fff;}
.entry-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2);}
.entry-list{margin-top:14px;display:flex;flex-direction:column;gap:7px;}
.entry-list li{
  position:relative;padding-left:16px;
  font-size:13.5px;color:var(--text-3);line-height:1.7;
}
.entry-list li::before{
  content:"";position:absolute;left:0;top:8px;width:5px;height:5px;
  border-radius:50%;background:var(--brand);opacity:.8;
}
.entry-foot{margin-top:auto;padding-top:18px;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.faq-card{
  padding:26px 26px 24px;
  border-radius:var(--r-md);
  background:var(--glass-soft);
  border:1px solid var(--line-glass);
  box-shadow:var(--inset);
  transition:border-color .22s ease-out,transform .22s ease-out;
}
.faq-card:hover{border-color:var(--line-glass-hover);transform:translateY(-3px);}
.faq-q{
  display:flex;gap:12px;
  font-size:16.5px;font-weight:700;color:#fff;line-height:1.6;
}
.faq-q .qm{
  flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:8px;margin-top:1px;
  background:rgba(22,194,166,.14);
  color:var(--brand);font-size:13px;font-weight:800;
}
.faq-a{margin-top:12px;font-size:14.5px;line-height:1.88;color:var(--text-2);}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:38px 44px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line-glass-hover);
  box-shadow:var(--shadow),var(--inset);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;bottom:-140px;left:-60px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(22,194,166,.10),transparent 62%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;line-height:1.34;}
.cta-copy p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--text-2);}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:72px 0 0;
  background:#040A0F;
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .85fr .75fr 1fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--text-3);max-width:380px;}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--text-3);}
.footer-contact a{color:var(--text-2);}
.footer-contact a:hover{color:var(--brand);}
.footer-contact .num{color:var(--accent);font-weight:600;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list{display:flex;flex-direction:column;}
.footer-list a{
  position:relative;
  display:block;
  line-height:34px;
  font-size:14px;color:var(--text-3);
  padding-left:0;
  transition:color .2s ease-out,padding-left .2s ease-out;
}
.footer-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scale(0);
  width:5px;height:5px;border-radius:50%;background:var(--brand);
  transition:transform .2s ease-out;
}
.footer-list a:hover{color:var(--text);padding-left:13px;}
.footer-list a:hover::before{transform:translateY(-50%) scale(1);}
.footer-note{font-size:13.5px;line-height:1.9;color:var(--text-3);}
.footer-note strong{display:block;color:var(--text-2);font-weight:600;margin-bottom:6px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.fb-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(8,21,31,.82);
  border:1px solid var(--line-glass);
  color:var(--brand);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-soft);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .22s ease-out,transform .22s ease-out,border-color .22s ease-out;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{border-color:var(--line-glass-hover);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 28px;}
  .hero-grid{gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-panel{order:2;}
  .hero-panel img{aspect-ratio:16/9;}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .entry-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;gap:24px;}
  .acc-content{padding-left:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  .page-hero h1{font-size:29px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hs{padding:18px;}
  .hs:last-child{grid-column:1 / -1;}
  .hero-actions .btn{width:100%;}
  .acc-head{padding:18px 18px;gap:12px;}
  .acc-title{font-size:16.5px;}
  .acc-sub{font-size:13px;}
  .acc-content{padding:16px 18px 20px;}
  .acc-points{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .to-top{right:16px;bottom:16px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero-stats{grid-template-columns:1fr;}
  .entry-body{padding:18px 18px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}