/* roulang page: index */
:root{
  --dark:#0C0E13;
  --dark-panel:#141822;
  --page:#F5F6F3;
  --card:#FFFFFF;
  --primary:#14C9A3;
  --primary-deep:#0E9C7E;
  --primary-soft:#D6F6EE;
  --accent:#FF8A3D;
  --violet:#6E5BFF;
  --text:#10131A;
  --text-2:#4A5262;
  --text-3:#8A93A3;
  --line:#E3E6E0;
  --dark-text:#F2F4F8;
  --dark-text-2:rgba(255,255,255,.66);
  --r-card:14px;
  --r-img:18px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,19,26,.06);
  --sh-md:0 6px 18px -6px rgba(16,19,26,.14);
  --sh-lg:0 22px 48px -22px rgba(16,19,26,.26);
  --nav-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--page);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,button,select,textarea{font-size:inherit;font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(20,201,163,.45);outline-offset:2px;border-radius:4px}

/* ---------- 布局骨架 ---------- */
.app-main{margin-left:var(--nav-w);min-width:0;overflow-x:hidden}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary-deep);text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--primary);display:block}
h1{font-size:clamp(30px,3.6vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.4vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
h3{font-size:18px;font-weight:700;line-height:1.5}
p{color:var(--text-2)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{margin-top:14px}
.sec-head p{margin-top:14px;font-size:16px}
.sec-head--row{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;max-width:none}

/* ---------- 侧栏导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  background:var(--dark);
  border-right:1px solid rgba(255,255,255,.07);
  display:flex;flex-direction:column;
  padding:22px 16px 20px;
  z-index:90;
  overflow-y:auto;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:2px 6px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:linear-gradient(140deg,var(--primary),#0b7d64);
  color:#06231c;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{color:var(--dark-text);font-size:14px;font-weight:700;line-height:1.35}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--dark-text-2);letter-spacing:.05em}
.side-search{margin:18px 6px 14px}
.side-search input{
  width:100%;height:40px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  color:var(--dark-text);padding:0 12px;font-size:14px;
}
.side-search input::placeholder{color:rgba(255,255,255,.38)}
.side-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,201,163,.2)}
.side-menu{display:flex;flex-direction:column;gap:4px;margin-top:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:10px 12px;border-radius:10px;
  color:var(--dark-text-2);font-size:14.5px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.nav-link .nav-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--dark-text-2);
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link:hover .nav-ico{background:rgba(20,201,163,.18);color:var(--primary)}
.nav-link.active{background:rgba(255,255,255,.10);color:#fff}
.nav-link.active::before{content:"";position:absolute;left:-16px;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--primary)}
.nav-link.active .nav-ico{background:var(--primary);color:#06231c}
.side-anchors{margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:2px}
.side-anchors a{
  display:block;padding:8px 12px;border-radius:8px;font-size:13.5px;
  color:rgba(255,255,255,.52);transition:color .18s ease,background .18s ease;
}
.side-anchors a:hover{color:#fff;background:rgba(255,255,255,.05)}
.side-foot{margin-top:auto;padding-top:20px}
.side-foot p{font-size:12px;color:rgba(255,255,255,.4);margin-top:10px;line-height:1.6}
.nav-close{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#2A1400;box-shadow:0 8px 20px -10px rgba(255,138,61,.75)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 12px 26px -10px rgba(255,138,61,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:rgba(20,201,163,.10)}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost-dark:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.5)}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary-deep);font-weight:700;font-size:15px;position:relative}
.link-more::after{content:"";position:absolute;left:0;right:22px;bottom:-3px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.link-more:hover::after{transform:scaleX(1)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;background:var(--primary-soft);color:#0B5F4D;font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-amber{background:#FFEEE2;color:#9A4A0F}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:var(--dark-text-2);font-size:12.5px;font-weight:600;letter-spacing:.04em}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--dark);color:var(--dark-text);padding:80px 0 64px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.30}
.hero-veil{position:absolute;inset:0;background:linear-gradient(112deg,rgba(12,14,19,.97) 0%,rgba(12,14,19,.88) 46%,rgba(12,14,19,.70) 100%)}
.hero-scan{position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,rgba(20,201,163,.06) 0 1px,transparent 1px 5px);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{color:#fff;margin-top:18px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--dark-text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{margin-top:28px}
.hero-stats{
  position:relative;z-index:2;margin-top:56px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats li{padding:22px 20px 4px;border-right:1px solid rgba(255,255,255,.10)}
.hero-stats li:last-child{border-right:0}
.hero-stats b{display:block;font-size:30px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats span{font-size:13px;color:var(--dark-text-2)}

.terminal-card{
  background:var(--dark-panel);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-card);
  padding:14px;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.85);
}
.terminal-head{display:flex;align-items:center;gap:7px;padding:2px 4px 12px}
.terminal-head .dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.terminal-head .dot:first-child{background:var(--primary)}
.terminal-head em{margin-left:auto;font-style:normal;font-size:12px;color:rgba(255,255,255,.45);letter-spacing:.06em}
.terminal-card img{width:100%;height:230px;object-fit:cover;border-radius:12px}
.status-list{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.status-list li{display:flex;align-items:center;gap:10px;padding:9px 6px;font-size:13.5px;color:var(--dark-text-2);border-bottom:1px dashed rgba(255,255,255,.08)}
.status-list li:last-child{border-bottom:0}
.status-list b{margin-left:auto;color:var(--primary);font-weight:700;font-variant-numeric:tabular-nums}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(20,201,163,.16)}
.pulse.p2{background:#FFC46B;box-shadow:0 0 0 4px rgba(255,196,107,.16)}
.pulse.p3{background:#7FB2FF;box-shadow:0 0 0 4px rgba(127,178,255,.16)}

/* ---------- 卖点 ---------- */
.feature-wrap{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.feature-side{position:sticky;top:40px}
.feature-side h2{margin-top:14px}
.feature-side p{margin-top:16px;font-size:15.5px}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.f-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.f-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#CFE7DF}
.f-card--tall{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between}
.f-ico{width:42px;height:42px;border-radius:11px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;color:var(--primary-deep);font-weight:800;font-size:16px}
.f-card h3{margin-top:18px}
.f-card p{margin-top:10px;font-size:14.8px;line-height:1.8}
.f-card--tall p{margin-top:12px}
.f-card img{margin-top:22px;width:100%;height:150px;object-fit:cover;border-radius:12px}

/* ---------- 演示 ---------- */
.demo-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.demo-visual{position:relative;border-radius:var(--r-img);padding:16px}
.demo-visual::before{content:"";position:absolute;inset:0;border-radius:var(--r-img);background:radial-gradient(120% 90% at 20% 10%,rgba(110,91,255,.42),rgba(110,91,255,0) 62%)}
.demo-visual img{position:relative;width:100%;height:360px;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-lg)}
.steps{display:flex;flex-direction:column;gap:0}
.step{position:relative;padding:0 0 30px 62px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:19px;top:40px;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary),rgba(20,201,163,.15))}
.step:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:11px;
  background:var(--dark);color:var(--primary);font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px}
.step p{margin-top:8px;font-size:14.8px}

/* ---------- 证据 ---------- */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:44px}
.proof-stats li{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-sm)}
.proof-stats b{display:block;font-size:32px;font-weight:800;color:var(--primary-deep);font-variant-numeric:tabular-nums;line-height:1.15}
.proof-stats span{font-size:13.5px;color:var(--text-2)}
.quote-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(300px,1fr);gap:20px;overflow-x:auto;padding-bottom:12px;scrollbar-width:thin}
.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);min-height:100%}
.quote p{font-size:14.8px;color:var(--text);line-height:1.85}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--primary-soft);color:var(--primary-deep);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}
.quote-user span{font-size:13.5px;color:var(--text-3)}
.quote-user strong{display:block;font-size:14.5px;color:var(--text);font-weight:700}
.medal-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.medal{padding:10px 16px;border-radius:999px;border:1px dashed #CFD6CE;background:#FAFBF8;color:var(--text-2);font-size:13px;font-weight:600;filter:grayscale(1);transition:filter .2s ease,border-color .2s ease,color .2s ease}
.medal:hover{filter:grayscale(0);border-color:var(--primary);color:var(--primary-deep)}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px}
.news-lead{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .18s ease,box-shadow .18s ease}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.news-lead img{width:100%;height:280px;object-fit:cover;transition:transform .18s ease}
.news-lead:hover img{transform:scale(1.04)}
.news-lead .news-body{padding:24px}
.news-lead h3{font-size:21px;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead p{margin-top:10px;font-size:14.8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:grid;gap:24px}
.news-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .18s ease,box-shadow .18s ease}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.news-card img{width:100%;height:140px;object-fit:cover}
.news-card .news-body{padding:18px}
.news-card h3{font-size:16px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{margin-top:8px;font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:14px;margin-top:14px;font-size:13px;color:var(--text-3)}
.meta-row time{font-variant-numeric:tabular-nums}
.news-rows{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.row-card{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.row-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#CFE7DF}
.row-card .row-idx{width:26px;height:26px;flex:0 0 26px;border-radius:8px;background:var(--primary-soft);color:var(--primary-deep);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.row-card h3{font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-card p{margin-top:6px;font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;justify-content:center;margin-top:36px}
.empty-state{border:1px dashed #CFD6CE;background:#FAFBF8;border-radius:var(--r-card);padding:52px 24px;text-align:center}
.empty-state b{display:block;font-size:17px;color:var(--text);font-weight:700}
.empty-state p{margin-top:10px;font-size:14.5px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-sm);transition:transform .18s ease,box-shadow .18s ease}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.price-card--hot{border:1.5px solid var(--primary);box-shadow:var(--sh-lg);transform:translateY(-6px)}
.price-card--hot:hover{transform:translateY(-8px)}
.price-flag{position:absolute;top:-13px;left:30px;background:var(--accent);color:#2A1400;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.04em}
.price-card h3{font-size:17px}
.price-num{margin-top:16px;display:flex;align-items:baseline;gap:6px}
.price-num b{font-size:40px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1}
.price-num small{font-size:13.5px;color:var(--text-3)}
.price-card > p{margin-top:12px;font-size:14.5px;min-height:48px}
.plan-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);align-items:flex-start}
.plan-list li i{width:18px;height:18px;flex:0 0 18px;border-radius:50%;background:var(--primary-soft);color:var(--primary-deep);font-size:11px;font-style:normal;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:5px}
.plan-list li.off{color:var(--text-3);text-decoration:line-through;text-decoration-color:#D6DAD4}
.plan-list li.off i{background:#EEF0EC;color:#A9B0A7}
.price-card .btn{margin-top:26px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:border-color .18s ease,box-shadow .18s ease}
.faq-item.is-open{border-color:var(--primary);box-shadow:var(--sh-md)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;text-align:left;background:none;border:0;padding:20px 22px;font-size:16.5px;font-weight:700;color:var(--text)}
.faq-q .faq-bar{width:4px;height:20px;border-radius:2px;background:#D8DCD6;transition:background .2s ease}
.faq-item.is-open .faq-bar{background:var(--primary)}
.faq-q .faq-ico{margin-left:auto;width:26px;height:26px;flex:0 0 26px;border-radius:8px;background:var(--page);color:var(--text-2);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;transition:transform .25s ease,background .2s ease,color .2s ease}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--primary);color:#06231c}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 22px 42px;font-size:15px;line-height:1.9}

/* ---------- 尾部 CTA ---------- */
.tail-cta{position:relative;background:var(--dark);color:#fff;padding:76px 0;overflow:hidden}
.tail-cta .tail-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.22}
.tail-cta .tail-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(12,14,19,.95),rgba(12,14,19,.78))}
.tail-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.tail-inner h2{color:#fff;max-width:640px}
.tail-inner p{margin-top:12px;color:var(--dark-text-2);font-size:15.5px;max-width:620px}
.tail-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--dark);color:var(--dark-text-2);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.07)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.site-foot h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.site-foot .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-foot p{color:rgba(255,255,255,.58);font-size:13.8px;line-height:1.85}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:13.8px;color:rgba(255,255,255,.7);transition:color .18s ease,transform .18s ease}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-bottom{margin-top:52px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45)}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:80;display:flex;align-items:center;gap:12px;opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s ease,transform .3s ease}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-top{width:46px;height:46px;border-radius:var(--r-btn);background:var(--dark-panel);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-lg)}
.float-top:hover{background:#1B2130}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:rgba(12,14,19,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);align-items:center;gap:12px;padding:0 16px;z-index:85}
.hamburger{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.07);border:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff}
.mobile-brand{margin-left:auto;color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;gap:8px}
.mobile-brand .brand-mark{width:26px;height:26px;flex:0 0 26px;border-radius:8px;font-size:13px}
.nav-scrim{position:fixed;inset:0;background:rgba(6,8,12,.6);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:88}
.nav-scrim.is-open{opacity:1;pointer-events:auto}
body.nav-open{overflow:hidden}

/* ---------- 文章 / 内页通用 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);padding:26px 0 0}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary-deep)}
.crumb .sep{color:#C7CCC5}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1280px}
}
@media (max-width:1023px){
  :root{--nav-w:72px}
  .side-nav{padding:20px 12px;align-items:center}
  .side-brand{justify-content:center;padding-bottom:18px;width:100%;border-bottom:1px solid rgba(255,255,255,.08)}
  .brand-text{display:none}
  .side-search{display:none}
  .side-menu{width:100%}
  .nav-link{justify-content:center;padding:10px 0}
  .nav-link .nav-label{display:none}
  .nav-link.active::before{left:-12px}
  .side-anchors{display:none}
  .side-foot .btn{font-size:0;padding:0;width:44px}
  .side-foot .btn::after{content:"→";font-size:16px}
  .side-foot p{display:none}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .demo-wrap{grid-template-columns:1fr;gap:36px}
  .feature-wrap{grid-template-columns:1fr;gap:32px}
  .feature-side{position:static}
  .news-grid{grid-template-columns:1fr}
  .news-rows{grid-template-columns:1fr 1fr}
  .proof-stats{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .price-card--hot{transform:none}
  .price-card--hot:hover{transform:translateY(-3px)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  :root{--nav-w:0px}
  .app-main{margin-left:0;padding-top:56px}
  .mobile-bar{display:flex}
  .side-nav{
    width:280px;padding:20px 16px;align-items:stretch;
    transform:translateX(-100%);transition:transform .28s ease;z-index:95;
  }
  .side-nav.is-open{transform:translateX(0)}
  .side-brand{justify-content:flex-start;padding:2px 6px 20px}
  .brand-text{display:block}
  .side-search{display:block}
  .side-menu{width:auto}
  .nav-link{justify-content:flex-start;padding:10px 12px}
  .nav-link .nav-label{display:inline}
  .nav-link.active::before{left:-16px}
  .side-anchors{display:flex}
  .side-foot .btn{font-size:15px;padding:0 20px;width:100%}
  .side-foot .btn::after{content:none}
  .side-foot p{display:block}
  .nav-close{
    display:flex;position:absolute;top:18px;right:14px;width:34px;height:34px;border-radius:9px;
    background:rgba(255,255,255,.07);border:0;color:#fff;align-items:center;justify-content:center;font-size:18px;
  }
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .sec-head{margin-bottom:32px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .hero{padding:56px 0 48px}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .hero-stats li{padding:18px 12px 2px;border-right:1px solid rgba(255,255,255,.10);border-bottom:1px solid rgba(255,255,255,.10)}
  .hero-stats li:nth-child(2n){border-right:0}
  .terminal-card img{height:180px}
  .feature-grid{grid-template-columns:1fr}
  .f-card--tall{grid-row:auto}
  .demo-visual img{height:240px}
  .step{padding-left:54px}
  .news-rows{grid-template-columns:1fr}
  .news-lead img{height:200px}
  .proof-stats{grid-template-columns:1fr 1fr;gap:16px}
  .quote-scroll{grid-auto-columns:minmax(260px,1fr)}
  .faq-q{padding:16px;font-size:15.5px;gap:12px}
  .faq-a p{padding:0 16px 18px 32px}
  .tail-inner{flex-direction:column;align-items:flex-start}
  .tail-actions{width:100%}
  .tail-actions .btn{flex:1}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .float-cta{left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(12,14,19,.95);backdrop-filter:blur(10px);gap:10px}
  .float-cta .btn{flex:1}
  .float-top{flex:0 0 46px}
}
@media (max-width:479px){
  .hero-cta .btn{width:100%}
  .proof-stats{grid-template-columns:1fr}
  .tag{font-size:12px}
}

/* roulang page: category1 */
:root{
  --ink:#0C0E13;
  --panel:#141822;
  --page:#F5F6F3;
  --card:#FFFFFF;
  --main:#14C9A3;
  --main-deep:#0E9C7E;
  --main-soft:#D6F6EE;
  --accent:#FF8A3D;
  --violet:#6E5BFF;
  --text:#10131A;
  --text-2:#4A5262;
  --text-3:#8A93A3;
  --line:#E3E6E0;
  --r-card:14px;
  --r-img:18px;
  --r-btn:10px;
  --r-in:10px;
  --sh-sm:0 1px 2px rgba(16,19,26,.06);
  --sh-md:0 6px 18px -6px rgba(16,19,26,.14);
  --sh-lg:0 22px 48px -22px rgba(16,19,26,.26);
  --side-w:240px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--text);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--main-deep);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--main)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(20,201,163,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- 左侧导航 ---------- */
.side-menu{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--ink);
  border-right:1px solid rgba(255,255,255,.07);
  padding:22px 14px 18px;
  display:flex;flex-direction:column;
  overflow-y:auto;z-index:80;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:9px;
  background:linear-gradient(140deg,var(--main) 0%,var(--main-deep) 100%);
  color:#04231C;font-weight:800;font-size:15px;
  display:grid;place-items:center;
}
.side-brand-name{color:#F2F4F8;font-size:14px;font-weight:700;line-height:1.35}
.side-brand-sub{display:block;color:rgba(255,255,255,.42);font-size:11px;font-weight:400;letter-spacing:.04em}
.side-menu .nav-label-group{
  color:rgba(255,255,255,.34);font-size:11px;letter-spacing:.14em;
  padding:6px 12px 8px;font-weight:600;
}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;margin-bottom:6px;
  color:rgba(255,255,255,.66);font-size:14px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-link:active{background:rgba(255,255,255,.05)}
.nav-link.active{background:rgba(255,255,255,.1);color:#fff;font-weight:700}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--main);
}
.nav-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:rgba(255,255,255,.08);color:#EDF0F6;
  display:grid;place-items:center;font-size:12px;font-weight:700;
}
.nav-link.active .nav-ico{background:rgba(20,201,163,.2);color:var(--main)}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.side-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:rgba(255,255,255,.6);padding:7px 10px;
  border-radius:999px;background:rgba(20,201,163,.1);border:1px solid rgba(20,201,163,.25);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--main);box-shadow:0 0 0 3px rgba(20,201,163,.18)}
.side-note{color:rgba(255,255,255,.38);font-size:11.5px;line-height:1.7;margin-top:12px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:90;
  background:rgba(12,14,19,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.mobile-brand{display:flex;align-items:center;gap:9px;color:#F2F4F8;font-size:14px;font-weight:700}
.hamburger{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
}
.hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(6,8,12,.6);z-index:95;
  opacity:0;transition:opacity .22s ease;
}
.drawer-mask.show{display:block;opacity:1}

/* ---------- 主区域 ---------- */
.wrap{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#F2F4F8;background:var(--ink);
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(12,14,19,.96) 0%,rgba(12,14,19,.86) 48%,rgba(12,14,19,.66) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:repeating-linear-gradient(to bottom,rgba(255,255,255,.05) 0 1px,transparent 1px 5px);
}
.hero-inner{position:relative;z-index:2;padding:76px 0 68px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .now{color:rgba(255,255,255,.5)}
.hero-tagline{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:7px 14px;border-radius:999px;margin-bottom:20px;
  color:var(--main);background:rgba(20,201,163,.12);border:1px solid rgba(20,201,163,.3);
}
.hero h1{
  font-size:clamp(30px,3.6vw,50px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;color:#fff;max-width:16em;
}
.hero h1 em{font-style:normal;color:var(--main)}
.hero-sub{
  margin-top:18px;max-width:640px;font-size:16.5px;line-height:1.85;
  color:rgba(255,255,255,.72);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#231006;box-shadow:var(--sh-md)}
.btn-primary:hover{background:#FF9A57;color:#231006;transform:translateY(-1px);box-shadow:var(--sh-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost{border:1.5px solid var(--main);color:var(--main);background:transparent}
.btn-ghost:hover{background:rgba(20,201,163,.12);color:var(--main);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-quiet{color:var(--main-deep);font-weight:700;padding:8px 0;min-height:44px}
.btn-quiet:hover{color:var(--main);text-decoration:underline;text-underline-offset:5px}

.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag{
  font-size:12.5px;font-weight:600;letter-spacing:.03em;
  padding:6px 13px;border-radius:999px;
  color:rgba(255,255,255,.78);background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);
}
.stat-num{
  font-size:clamp(24px,2.4vw,34px);font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-num span{font-size:.55em;font-weight:700;color:var(--main);margin-left:3px}
.stat-label{font-size:13px;color:rgba(255,255,255,.58);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--main-deep);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--main);border-radius:2px}
h2.sec-title{
  font-size:clamp(24px,2.4vw,34px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;position:relative;padding-left:16px;
}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:3px;background:var(--main);
}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.85}

/* ---------- 分类主体：左侧锚点 + 卡片网格 ---------- */
.cat-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:36px;align-items:start}
.filter-panel{
  position:sticky;top:28px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 16px;box-shadow:var(--sh-sm);
}
.filter-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--text-3);margin-bottom:12px}
.filter-list li{margin-bottom:4px}
.filter-list a{
  display:block;padding:9px 12px;border-radius:9px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.filter-list a:hover{background:var(--page);color:var(--text)}
.filter-list a.on{background:var(--main-soft);color:var(--main-deep);border-left-color:var(--main)}
.filter-tip{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-3);line-height:1.8;
}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#D3DDD6}
.entry-card{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%}
.entry-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,var(--main-soft),#EEF3F0)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out}
.entry-card:hover .entry-media img{transform:scale(1.04)}
.entry-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:11.5px;font-weight:700;letter-spacing:.04em;
  padding:5px 11px;border-radius:999px;
  background:rgba(20,201,163,.92);color:#04231C;
}
.entry-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.entry-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px}
.entry-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.entry-points{margin-top:14px;display:grid;gap:6px}
.entry-points li{
  position:relative;padding-left:18px;font-size:13.5px;color:var(--text-2);line-height:1.7;
}
.entry-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--main);transform:rotate(45deg);
}
.entry-link{
  margin-top:auto;padding-top:16px;font-size:14px;font-weight:700;color:var(--main-deep);
  display:inline-flex;align-items:center;gap:6px;
}
.entry-link:hover{color:var(--main)}
.entry-link::after{content:"→";transition:transform .18s ease}
.entry-link:hover::after{transform:translateX(3px)}

/* ---------- 步骤条 ---------- */
.flow-band{
  background:var(--ink);border-radius:var(--r-card);padding:32px 28px;color:#F2F4F8;
  border:1px solid rgba(255,255,255,.08);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  box-shadow:var(--sh-lg);
}
.flow-step{position:relative;padding-left:52px}
.flow-num{
  position:absolute;left:0;top:2px;width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;font-size:14px;font-weight:800;
  background:rgba(20,201,163,.16);color:var(--main);border:1px solid rgba(20,201,163,.35);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:6px}
.flow-step p{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.75}

/* ---------- 表格 ---------- */
.table-shell{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);
  box-shadow:var(--sh-sm);
}
.table-scroll{overflow-x:auto}
.spec-table{min-width:760px;font-size:14.5px}
.spec-table thead th{
  background:var(--main-soft);color:#083B31;font-weight:700;font-size:13.5px;
  text-align:left;padding:15px 18px;white-space:nowrap;
}
.spec-table tbody td{padding:15px 18px;border-top:1px solid var(--line);color:var(--text-2)}
.spec-table tbody tr:nth-child(even){background:#FAFBF9}
.spec-table tbody tr:hover{background:#F3F8F6}
.spec-table td:first-child{color:var(--text);font-weight:700}
.spec-table .pill{
  display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:rgba(255,138,61,.14);color:#A8511A;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.open{border-color:#C7E7DD;box-shadow:var(--sh-md)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;text-align:left;font-size:16px;font-weight:700;color:var(--text);
  min-height:44px;
}
.faq-q:hover{color:var(--main-deep)}
.faq-item.open .faq-q{color:var(--main-deep)}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;border-radius:7px;position:relative;
  background:var(--page);border:1px solid var(--line);transition:background .22s ease,transform .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:transform .22s ease,background .22s ease;
}
.faq-icon::before{left:6px;right:6px;top:11px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:11px;width:2px}
.faq-item.open .faq-icon{background:var(--main-soft);border-color:#BEE7DA}
.faq-item.open .faq-icon::before{background:var(--main-deep)}
.faq-item.open .faq-icon::after{transform:scaleY(0);background:var(--main-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 22px 20px;border-left:3px solid var(--main);margin-left:22px;padding-left:16px}
.faq-a-inner p{font-size:14.8px;color:var(--text-2);line-height:1.85}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#F2F4F8;overflow:hidden;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,14,19,.95),rgba(12,14,19,.8));
}
.cta-inner{
  position:relative;z-index:2;padding:64px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:clamp(22px,2.2vw,30px);font-weight:800;line-height:1.35;color:#fff}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.68);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(255,255,255,.7);padding:60px 0 26px;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px}
.site-foot h4{font-size:13px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:14px}
.site-foot p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62)}
.foot-links{display:grid;gap:9px}
.foot-links a{font-size:13.5px;color:rgba(255,255,255,.72);display:inline-block;transition:color .18s ease,transform .18s ease}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.45);
}

/* ---------- 浮动按钮 ---------- */
.float-dock{
  position:fixed;right:22px;bottom:26px;z-index:70;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.float-dock.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-btn{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--card);border:1px solid var(--line);box-shadow:var(--sh-md);
  color:var(--text-2);font-size:13px;font-weight:700;
}
.float-btn:hover{color:var(--main-deep);border-color:#BFE4D9;transform:translateY(-2px)}
.float-cta{
  width:auto;padding:0 18px;height:46px;border-radius:12px;
  background:var(--accent);color:#231006;font-weight:700;
  display:inline-flex;align-items:center;box-shadow:var(--sh-md);
}
.float-cta:hover{background:#FF9A57;transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1360px){
  .container{max-width:1180px}
}
@media (max-width:1023px){
  :root{--side-w:72px}
  .side-brand{border-bottom:0;margin-bottom:10px;padding:4px 6px 12px;justify-content:center}
  .side-brand-text{display:none}
  .side-menu{padding:18px 10px}
  .nav-link{justify-content:center;padding:11px 6px}
  .nav-link .nav-label{display:none}
  .side-menu .nav-label-group{display:none}
  .side-foot{display:none}
  .section{padding:72px 0}
  .cat-layout{grid-template-columns:1fr;gap:26px}
  .filter-panel{position:static;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px}
  .filter-title{width:100%;margin-bottom:4px}
  .filter-list{display:flex;flex-wrap:wrap;gap:8px}
  .filter-list li{margin:0}
  .filter-list a{border-left:0;border-radius:999px;padding:8px 14px;background:var(--page)}
  .filter-list a.on{border-left:0}
  .filter-tip{display:none}
  .flow-band{grid-template-columns:1fr;gap:20px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .side-menu{
    width:280px;transform:translateX(-100%);
    transition:transform .26s ease;padding:20px 14px;
  }
  .side-menu.open{transform:translateX(0)}
  .side-menu .nav-label,.side-brand-text,.side-menu .nav-label-group{display:block}
  .side-menu .side-foot{display:block}
  .nav-link{justify-content:flex-start;padding:11px 12px}
  .side-menu{padding-top:24px}
  .side-brand{justify-content:flex-start;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}
  .wrap{margin-left:0;padding-top:56px}
  .mobile-bar{display:flex}
  .hero-inner{padding:52px 0 46px}
  .section{padding:56px 0}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .container{padding:0 18px}
  .cta-inner{padding:52px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-a-inner{margin-left:0;padding-left:14px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .float-dock{right:14px;bottom:16px}
  .float-dock .float-cta{display:none}
}
@media (max-width:519px){
  .hero-tags{gap:8px}
  .hero-actions .btn{width:100%}
  .flow-band{padding:24px 18px}
  .flow-step{padding-left:46px}
  .spec-table{min-width:660px}
}

/* roulang page: article */
/* ================= 设计变量 ================= */
:root{
  --dark:#0C0E13;
  --dark-2:#141822;
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --brand:#14C9A3;
  --brand-d:#0E9C7E;
  --brand-l:#D6F6EE;
  --accent:#FF8A3D;
  --violet:#6E5BFF;
  --ink:#10131A;
  --ink-2:#4A5262;
  --ink-3:#8A93A3;
  --line:#E3E6E0;
  --dark-ink:#F2F4F8;
  --dark-2nd:rgba(255,255,255,.66);
  --r-card:14px;
  --r-img:18px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,19,26,.06);
  --sh-md:0 6px 18px -6px rgba(16,19,26,.14);
  --sh-lg:0 22px 48px -22px rgba(16,19,26,.26);
  --sidebar-w:240px;
  --ease:180ms ease-out;
}
/* ================= reset / base ================= */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0}
table{border-collapse:collapse;width:100%}
.skip{
  position:absolute;left:-9999px;top:0;background:var(--brand);color:#04201A;
  padding:10px 16px;border-radius:0 0 10px 0;z-index:200;font-weight:700;
}
.skip:focus{left:0}
:focus-visible{outline:3px solid rgba(20,201,163,.4);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ================= 左侧 App Shell ================= */
.app-side{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--dark);
  border-right:1px solid rgba(255,255,255,.07);
  display:flex;flex-direction:column;
  z-index:80;
}
.side-head{padding:22px 18px 14px}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-d));
  color:#04201A;font-weight:800;font-size:18px;
  display:grid;place-items:center;
}
.brand-text strong{display:block;font-size:13.5px;line-height:1.35;color:#fff;font-weight:700}
.brand-text small{display:block;font-size:11px;color:rgba(255,255,255,.45);letter-spacing:.04em;margin-top:3px}
.side-menu{display:flex;flex-direction:column;gap:4px;padding:6px 12px 12px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:10px 12px;border-radius:10px;
  color:rgba(255,255,255,.7);font-size:14px;font-weight:600;line-height:1.4;
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.active{background:rgba(20,201,163,.14);color:#fff}
.nav-link.active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:2px;background:var(--brand);
}
.nav-ico{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.85);
  display:grid;place-items:center;font-size:12px;font-weight:700;
}
.nav-link.active .nav-ico{background:rgba(20,201,163,.22);color:#8FF1DC}
.side-foot{margin-top:auto;padding:14px 18px 22px;border-top:1px solid rgba(255,255,255,.08)}
.side-cta{
  display:flex;align-items:center;justify-content:center;min-height:44px;
  border-radius:var(--r-btn);background:var(--accent);color:#1A1206;
  font-size:14px;font-weight:800;letter-spacing:.02em;
  transition:background var(--ease),transform var(--ease);
}
.side-cta:hover{background:#FF9959;transform:translateY(-1px)}
.side-cta .cta-mini{display:none}
.side-note{margin:12px 0 0;font-size:11px;line-height:1.7;color:rgba(255,255,255,.45)}
.side-mask{display:none}

/* 移动端顶栏 */
.mob-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:rgba(12,14,19,.97);border-bottom:1px solid rgba(255,255,255,.08);
  align-items:center;justify-content:space-between;padding:0 14px;
}
.mob-brand{display:flex;align-items:center;gap:9px;color:#fff;font-size:14.5px;font-weight:700}
.mob-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:15px}
.mob-toggle{
  width:44px;height:44px;border:0;background:transparent;
  display:grid;place-items:center;gap:5px;padding:10px;
}
.mob-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:rgba(255,255,255,.85);transition:transform var(--ease),opacity var(--ease)}
body.nav-open .mob-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .mob-toggle span:nth-child(2){opacity:0}
body.nav-open .mob-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ================= 页面骨架 ================= */
.page{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.page>main{flex:1 1 auto}

/* ================= 文章头部 ================= */
.article-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#0C0E13 0%,#141822 100%);
  color:var(--dark-ink);padding:52px 0 48px;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.16;
}
.article-hero .container{position:relative;z-index:1}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13px;color:rgba(255,255,255,.5);margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.75)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:rgba(255,255,255,.28)}
.crumbs .cur{max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.5)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(20,201,163,.16);border:1px solid rgba(20,201,163,.35);
  color:#7BEDD6;font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:5px 13px;border-radius:999px;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-hero h1{
  color:#fff;font-weight:800;letter-spacing:-.01em;
  font-size:clamp(25px,3vw,40px);line-height:1.24;
  margin:18px 0 18px;max-width:920px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:11px;font-size:13px;color:rgba(255,255,255,.6)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.3)}
.meta-row time{color:rgba(255,255,255,.75);font-weight:600}

/* ================= 正文区 ================= */
.article-body{padding:44px 0 76px}
.reading-bar{height:2px;border-radius:2px;background:#E6E9E3;overflow:hidden;margin-bottom:30px}
.reading-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-d));transition:width .12s linear}
.article-grid{margin-bottom:8px}
.cover{
  margin:0 0 30px;border-radius:var(--r-img);overflow:hidden;
  background:var(--brand-l);box-shadow:var(--sh-md);
}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover figcaption{font-size:12.5px;color:var(--ink-3);padding:10px 4px 0}

.prose{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.35;color:var(--ink);
  margin:1.8em 0 .7em;padding-left:15px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:20px;
  border-radius:2px;background:var(--brand);
}
.prose h3{font-size:19px;font-weight:700;line-height:1.45;color:var(--ink);margin:1.6em 0 .6em}
.prose h4{font-size:17px;font-weight:700;color:var(--ink);margin:1.4em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em}
.prose li{margin-bottom:.5em}
.prose blockquote{
  margin:1.5em 0;padding:16px 20px;background:var(--bg);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;
  color:var(--ink-2);font-size:16px;
}
.prose img{border-radius:var(--r-img);margin:1.6em auto;box-shadow:var(--sh-sm)}
.prose figure{margin:1.6em 0}
.prose figcaption{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:8px}
.prose a{color:var(--brand-d);border-bottom:1px solid rgba(14,156,126,.32)}
.prose a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.prose table{
  display:block;overflow-x:auto;white-space:nowrap;
  margin:1.5em 0;border:1px solid var(--line);border-radius:12px;
  font-size:15px;background:var(--card);
}
.prose th{background:var(--brand-l);color:#0A5F4C;font-weight:700;text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}
.prose td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.prose tr:last-child td{border-bottom:0}
.prose code{background:#EEF1EC;border-radius:6px;padding:2px 6px;font-size:14.5px;color:#0A5F4C}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空态 */
.empty-state{
  max-width:760px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);
  padding:44px 28px;text-align:center;
}
.empty-state .empty-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:var(--brand-l);color:var(--brand-d);display:grid;place-items:center;font-size:22px;
}
.empty-state h2{font-size:20px;color:var(--ink);margin-bottom:10px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:22px}

/* 文章底部操作 */
.article-foot{
  max-width:760px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border-radius:999px;background:var(--brand-l);color:#0A5F4C;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.foot-actions{display:flex;flex-wrap:wrap;gap:10px}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease);
}
.btn-primary{background:var(--accent);color:#1A1206;box-shadow:0 8px 20px -12px rgba(255,138,61,.9)}
.btn-primary:hover{background:#FF9A5B;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(255,138,61,1)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand-d)}
.btn-ghost:hover{background:rgba(20,201,163,.08);transform:translateY(-1px)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.1);border-color:var(--brand)}

/* ================= 侧栏 ================= */
.article-side-inner{position:sticky;top:24px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);padding:20px;margin-bottom:18px;
}
.side-card h3{
  font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--ink-3);
  margin:0 0 14px;text-transform:uppercase;
}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.side-list a{display:block;font-size:14px;font-weight:600;line-height:1.6;color:var(--ink)}
.side-list a:hover{color:var(--brand-d)}
.side-list .sub{display:block;font-size:12px;font-weight:400;color:var(--ink-3);margin-top:4px}
.side-links{display:grid;gap:10px;font-size:14px}
.side-links a{display:flex;align-items:center;gap:8px;color:var(--ink-2);font-weight:600}
.side-links a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);flex:0 0 auto}
.side-links a:hover{color:var(--brand-d)}

/* ================= 相关推荐 ================= */
.related{padding:0 0 72px}
.sec-title{
  position:relative;font-size:24px;font-weight:700;color:var(--ink);
  padding-left:15px;margin-bottom:26px;
}
.sec-title::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:19px;border-radius:2px;background:var(--brand)}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.rel-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-l)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 180ms ease-out}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
.rel-card h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink)}
.rel-card p{font-size:13.5px;color:var(--ink-2);line-height:1.75;flex:1}
.rel-card .rel-more{font-size:13px;font-weight:700;color:var(--brand-d)}

/* ================= 尾部 CTA ================= */
.cta-strip{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  padding:56px 0;
}
.cta-strip::after{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(110,91,255,.45) 0%,rgba(110,91,255,0) 68%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-title{font-size:clamp(21px,2.4vw,28px);font-weight:800;line-height:1.35;margin-bottom:10px}
.cta-sub{font-size:15px;color:var(--dark-2nd);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ================= 页脚 ================= */
.site-foot{background:var(--dark);color:rgba(255,255,255,.7);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.07)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.site-foot p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);margin:0}
.site-foot h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:#fff;margin:0 0 16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{display:inline-block;font-size:13.5px;color:rgba(255,255,255,.7);transition:color var(--ease),transform var(--ease)}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding:20px 0 24px;
  font-size:12.5px;color:rgba(255,255,255,.45);
}

/* ================= 响应式 ================= */
@media (min-width:1440px){
  .container{max-width:1360px}
}
@media (max-width:1023px){
  .article-side{display:none}
  .article-hero{padding:40px 0 36px}
  .article-body{padding:36px 0 60px}
  .related{padding-bottom:56px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (min-width:768px) and (max-width:1023px){
  :root{--sidebar-w:72px}
  .side-head{padding:18px 0;display:flex;justify-content:center}
  .brand{justify-content:center}
  .brand-text{display:none}
  .side-menu{align-items:center;padding:6px 10px 12px}
  .nav-label{display:none}
  .nav-link{justify-content:center;width:44px;padding:10px 0}
  .side-foot{padding:12px 10px 20px;display:flex;flex-direction:column;align-items:center;gap:10px}
  .side-cta{width:44px;height:44px;min-height:0;padding:0}
  .side-cta .cta-full{display:none}
  .side-cta .cta-mini{display:inline}
  .side-note{display:none}
}
@media (max-width:767px){
  .mob-bar{display:flex}
  .page{margin-left:0;padding-top:56px}
  .app-side{width:280px;transform:translateX(-100%);transition:transform .26s ease}
  body.nav-open .app-side{transform:translateX(0)}
  .side-mask{
    display:block;position:fixed;inset:0;z-index:75;
    background:rgba(6,8,12,.6);opacity:0;pointer-events:none;
    transition:opacity .26s ease;
  }
  body.nav-open .side-mask{opacity:1;pointer-events:auto}
  body.nav-open{overflow:hidden}
  .container{padding:0 16px}
  .article-hero{padding:30px 0 30px}
  .crumbs{font-size:12.5px;margin-bottom:16px}
  .crumbs .cur{max-width:200px}
  .article-hero h1{margin:14px 0 14px}
  .article-body{padding:28px 0 48px}
  .cover{border-radius:14px;margin-bottom:24px}
  .prose{font-size:16px;line-height:1.85}
  .prose h2{font-size:21px}
  .prose h3{font-size:17.5px}
  .article-foot{flex-direction:column;align-items:stretch}
  .foot-actions .btn{flex:1 1 auto}
  .cta-strip{padding:44px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 140px}
  .related{padding-bottom:48px}
  .sec-title{font-size:21px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .site-foot{padding-top:44px}
  .foot-bottom{flex-direction:column;gap:6px}
}
@media (max-width:479px){
  .article-hero h1{font-size:23px}
  .meta-row{font-size:12.5px;gap:8px}
  .btn{padding:0 18px;font-size:14.5px}
}

/* roulang page: category2 */
:root{
  --ink:#0C0E13;
  --panel:#141822;
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --brand:#14C9A3;
  --brand-d:#0E9C7E;
  --brand-l:#D6F6EE;
  --accent:#FF8A3D;
  --violet:#6E5BFF;
  --t1:#10131A;
  --t2:#4A5262;
  --t3:#8A93A3;
  --line:#E3E6E0;
  --dt1:#F2F4F8;
  --dt2:rgba(255,255,255,.66);
  --r-card:14px;
  --r-img:18px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(16,19,26,.06);
  --sh-md:0 6px 18px -6px rgba(16,19,26,.14);
  --sh-lg:0 22px 48px -22px rgba(16,19,26,.26);
  --gutter:24px;
  --side:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(20,201,163,.45);outline-offset:2px;border-radius:6px}
.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:1280px;margin:0 auto;padding:0 32px}
@media(min-width:1440px){.container{max-width:1360px}}
@media(max-width:767px){.container{padding:0 16px}}

/* ---------- 侧栏 App Shell ---------- */
.app-header{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:var(--ink);z-index:60;display:flex;flex-direction:column;
  padding:22px 0 18px;overflow-y:auto;border-right:1px solid rgba(255,255,255,.06);
}
.brand-block{padding:0 20px 20px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#04231C;font-weight:800;font-size:16px;display:grid;place-items:center;
  box-shadow:0 0 0 3px rgba(20,201,163,.14);
}
.brand-name{color:#fff;font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-menu{display:flex;flex-direction:column;gap:4px;padding:10px 12px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:10px;color:var(--dt2);
  font-size:14px;line-height:1.4;transition:background .18s ease,color .18s ease;
}
.nav-ico{
  width:28px;height:28px;flex:0 0 28px;border-radius:8px;
  background:rgba(255,255,255,.07);color:var(--brand);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link:hover .nav-ico{background:rgba(20,201,163,.18)}
.nav-link.active{background:rgba(255,255,255,.09);color:#fff;font-weight:700}
.nav-link.active::before{
  content:"";position:absolute;left:-12px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.side-block{padding:16px 20px 8px;margin-top:auto}
.side-note{font-size:12px;line-height:1.7;color:rgba(255,255,255,.45);margin-top:12px}
.side-cta{
  display:block;text-align:center;padding:11px 14px;border-radius:var(--r-btn);
  background:var(--accent);color:#26160A;font-weight:800;font-size:14px;
  transition:filter .18s ease,transform .18s ease;
}
.side-cta:hover{filter:brightness(1.06);transform:translateY(-1px);color:#26160A}
.side-cta:active{transform:translateY(0)}
.drawer-close{display:none;color:rgba(255,255,255,.7);font-size:22px;line-height:1;padding:4px 8px;border-radius:8px}
.drawer-close:hover{color:#fff;background:rgba(255,255,255,.08)}
.scrim{position:fixed;inset:0;background:rgba(6,8,12,.6);z-index:55;opacity:0;visibility:hidden;transition:opacity .22s ease}
.scrim.show{opacity:1;visibility:visible}

.topbar{display:none}

/* ---------- 主区 ---------- */
.main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.main-inner{flex:1}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#C6CBC2}
.crumb a{color:var(--t3);transition:color .18s ease}
.crumb a:hover{color:var(--brand-d);text-decoration:underline;text-underline-offset:3px}
.crumb .is-current{color:var(--t2)}

/* ---------- Banner ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(105deg,rgba(12,14,19,.94) 0%,rgba(12,14,19,.8) 52%,rgba(12,14,19,.62) 100%),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  padding:64px 0 56px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(20,201,163,.06) 0 1px,transparent 1px 6px);
  opacity:.7;
}
.hero .container{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:6px 12px;border-radius:999px;
  background:rgba(20,201,163,.14);color:var(--brand);border:1px solid rgba(20,201,163,.3);
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(20,201,163,.2)}
h1{
  margin:20px 0 0;font-size:clamp(30px,3.6vw,50px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;color:#fff;max-width:20em;
}
h1 .hl{color:var(--brand)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--dt2);max-width:38em}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:var(--dt1);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,filter .18s ease,color .18s ease;
  cursor:pointer;
}
.btn-primary{background:var(--accent);color:#26160A;box-shadow:0 6px 16px -8px rgba(255,138,61,.9)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(255,138,61,.95);color:#26160A}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px -6px rgba(255,138,61,.8)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(20,201,163,.12);transform:translateY(-1px);color:var(--brand)}
.btn-ghost-light{border-color:rgba(255,255,255,.32);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);transform:translateY(-1px);color:#fff}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);
}
.stat-num{font-size:26px;font-weight:800;line-height:1.2;color:#fff;font-variant-numeric:tabular-nums}
.stat-lb{font-size:13px;color:var(--dt2);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:36px}
.sec-eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-d);background:var(--brand-l);padding:5px 12px;border-radius:999px;
}
h2{
  font-size:clamp(24px,2.5vw,32px);font-weight:700;line-height:1.3;
  margin-top:16px;position:relative;padding-left:16px;color:var(--t1);
}
h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
.sec-desc{margin-top:14px;color:var(--t2);font-size:16px}
h3{font-size:18px;font-weight:700;line-height:1.5;color:var(--t1)}

/* ---------- 流程带 ---------- */
.flow-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:40px 32px;box-shadow:var(--sh-sm)}
.flow-inner{position:relative}
.flow-inner::before{
  content:"";position:absolute;top:22px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(20,201,163,.15),var(--brand),rgba(20,201,163,.15));
}
.flow-step{position:relative;padding:0 12px;text-align:left}
.flow-num{
  position:relative;z-index:2;width:44px;height:44px;border-radius:12px;
  background:var(--ink);color:var(--brand);font-weight:800;font-size:17px;
  display:grid;place-items:center;box-shadow:0 0 0 6px #fff;
}
.flow-title{margin-top:16px;font-size:16px;font-weight:700;color:var(--t1)}
.flow-text{margin-top:8px;font-size:14px;color:var(--t2);line-height:1.75}
@media(max-width:1023px){
  .flow-inner::before{display:none}
  .flow-step{margin-bottom:26px;padding-left:0}
}

/* ---------- 通栏大卡片 ---------- */
.stack{display:flex;flex-direction:column;gap:26px}
.wide-card{
  display:grid;grid-template-columns:400px 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.wide-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#D5DAD2}
.wide-media{position:relative;min-height:290px;background:linear-gradient(135deg,var(--brand-l),#EAF1EC);overflow:hidden}
.wide-media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out}
.wide-card:hover .wide-media img{transform:scale(1.04)}
.wide-no{
  position:absolute;top:16px;left:16px;z-index:2;
  font-size:12px;font-weight:800;letter-spacing:.06em;
  padding:6px 12px;border-radius:999px;background:rgba(12,14,19,.82);color:var(--brand);
  backdrop-filter:blur(4px);
}
.wide-body{padding:32px 34px;display:flex;flex-direction:column}
.wide-kicker{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--brand-d);text-transform:uppercase}
.wide-body h3{margin-top:10px;font-size:20px}
.wide-body p{margin-top:12px;color:var(--t2);font-size:15.5px;line-height:1.85}
.tick-list{list-style:none;margin-top:16px}
.tick-list li{position:relative;padding-left:26px;margin-bottom:9px;font-size:15px;color:var(--t2)}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:12px;height:7px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.wide-foot{margin-top:auto;padding-top:22px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-d);
  position:relative;
}
.text-link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover{color:var(--brand-d)}
@media(max-width:1023px){
  .wide-card{grid-template-columns:1fr}
  .wide-media{min-height:220px}
}
@media(max-width:767px){
  .wide-body{padding:24px 20px}
  .wide-media{min-height:190px}
}

/* ---------- 对比双栏 ---------- */
.compare{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.compare-card{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.compare-card.is-key{border:1.5px solid var(--brand);box-shadow:var(--sh-md)}
.compare-head{display:flex;align-items:center;gap:12px}
.chip{
  font-size:12px;font-weight:700;letter-spacing:.04em;padding:5px 11px;border-radius:999px;
  background:var(--brand-l);color:var(--brand-d);
}
.chip.warm{background:rgba(255,138,61,.15);color:#B4541A}
.compare-card p{margin-top:12px;color:var(--t2);font-size:15px}
.plain-list{list-style:none;margin-top:18px}
.plain-list li{position:relative;padding-left:24px;margin-bottom:10px;font-size:15px;color:var(--t2)}
.plain-list li::before{content:"";position:absolute;left:4px;top:12px;width:12px;height:7px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}
.plain-list li.off{color:var(--t3)}
.plain-list li.off::before{content:"";position:absolute;left:3px;top:15px;width:12px;height:2px;border:0;background:#C9CEC6;transform:none}

/* ---------- FAQ 平铺卡 ---------- */
.qa-grid{margin-top:-20px}
.qa-card{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 26px 24px;box-shadow:var(--sh-sm);margin-top:20px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:#CFD6CC}
.qa-q{display:flex;gap:12px;align-items:flex-start}
.qa-mark{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--brand-l);color:var(--brand-d);
  font-size:12px;font-weight:800;display:grid;place-items:center;margin-top:2px;
}
.qa-q h3{font-size:16.5px;line-height:1.6}
.qa-a{margin-top:12px;padding-left:38px;color:var(--t2);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;padding:72px 0;
  background:linear-gradient(100deg,rgba(12,14,19,.95),rgba(12,14,19,.78)),
             url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(110,91,255,.35),transparent 65%);
}
.cta-band .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center}
.cta-band h2{color:#fff;padding-left:0;margin-top:0;font-size:clamp(22px,2.4vw,30px)}
.cta-band h2::before{display:none}
.cta-band p{margin-top:14px;color:var(--dt2);font-size:15.5px;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
@media(max-width:1023px){
  .cta-grid{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:var(--dt2);padding:56px 0 26px;margin-top:auto}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.site-foot p{font-size:14px;line-height:1.85;color:var(--dt2)}
.site-foot h4{color:#fff;font-size:14px;font-weight:700;margin:0 0 14px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease,transform .18s ease;display:inline-block}
.foot-links a:hover{color:#fff;transform:translateX(2px)}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media(max-width:1023px){
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:6px}
}

/* ---------- 响应式：导航与栅格 ---------- */
@media(max-width:1023px){
  :root{--side:72px}
  .brand-name{display:none}
  .brand-block{padding:0 0 18px;justify-content:center}
  .nav-label{display:none}
  .nav-link{justify-content:center;padding:9px 6px}
  .nav-link.active::before{left:-6px}
  .side-block{padding:14px 10px 8px}
  .side-cta{padding:10px 6px;font-size:12px}
  .side-note{display:none}
  .section{padding:64px 0}
}
@media(max-width:767px){
  .app-header{
    width:280px;transform:translateX(-100%);
    transition:transform .26s cubic-bezier(.4,0,.2,1);
    padding:18px 0 16px;
  }
  .app-header.open{transform:translateX(0)}
  .brand-block{padding:0 18px 16px;justify-content:space-between}
  .brand-name{display:block}
  .nav-label{display:block}
  .nav-link{justify-content:flex-start;padding:10px 12px}
  .nav-link.active::before{left:-12px}
  .side-block{padding:16px 20px 8px}
  .side-cta{font-size:14px;padding:11px 14px}
  .side-note{display:block}
  .drawer-close{display:block}
  .main{margin-left:0}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;padding:0 16px;z-index:50;
    background:rgba(12,14,19,.96);border-bottom:1px solid rgba(255,255,255,.08);
    backdrop-filter:blur(8px);
  }
  .topbar .brand-name{font-size:14px;max-width:190px}
  .hamburger{
    width:44px;height:44px;border-radius:10px;display:grid;place-content:center;gap:5px;
    background:rgba(255,255,255,.07);transition:background .18s ease;
  }
  .hamburger:hover{background:rgba(255,255,255,.14)}
  .hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand)}
  .main-inner{padding-top:56px}
  .hero{padding:44px 0 42px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px}
  .stat-num{font-size:22px}
  .section{padding:56px 0}
  .flow-wrap{padding:28px 20px}
  .crumb{padding:16px 0 0}
  .cta-band{padding:56px 0}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .qa-a{padding-left:0}
}
@media(max-width:380px){
  .topbar .brand-name{max-width:150px;font-size:13px}
}