/* roulang page: index */
:root{
  --ink-900:#070E18;
  --ink-800:#0C1622;
  --ink-700:#12202F;
  --ink-600:#1A2C3D;
  --brand:#4FE3C1;
  --brand-deep:#178C74;
  --brand-soft:rgba(79,227,193,.12);
  --accent:#F2A24B;
  --text-hi:#E8F1F5;
  --text-mid:#9FB3C0;
  --text-low:#6C8291;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(79,227,193,.38);
  --ok:#4FE3C1;
  --warn:#F2A24B;
  --err:#FF6B6B;
  --disabled:rgba(159,179,192,.35);
  --radius-pill:999px;
  --radius-card:16px;
  --radius-sm:12px;
  --shadow-card:0 12px 32px rgba(2,10,18,.45);
  --shadow-float:0 20px 48px rgba(2,10,18,.6);
  --shadow-glow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);
  --ease:180ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1200px 620px at 12% -12%,rgba(79,227,193,.10),transparent 62%),
    radial-gradient(900px 520px at 92% 2%,rgba(79,227,193,.055),transparent 60%),
    linear-gradient(rgba(120,200,220,.042) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,220,.042) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)' opacity='0.035'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text-hi);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text-hi);}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section--alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--brand);
  text-transform:none;margin-bottom:16px;font-weight:600;
}
.eyebrow::before{content:"";width:12px;height:2px;background:var(--brand);border-radius:2px;display:block;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--text-hi);letter-spacing:-.3px;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.8;color:var(--text-mid);}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:120;
  display:flex;justify-content:center;padding:0 20px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1120px;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 22px;
  border-radius:var(--radius-pill);
  background:rgba(10,20,30,.72);
  -webkit-backdrop-filter:blur(16px) saturate(1.3);
  backdrop-filter:blur(16px) saturate(1.3);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  transition:height var(--ease),background var(--ease),box-shadow var(--ease);
}
.dock.is-scrolled{
  height:56px;
  background:rgba(7,14,24,.92);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),var(--shadow-float);
}
.dock-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;flex-shrink:0;}
.dock-logo:hover{color:var(--text-hi);text-decoration:none;}
.logo-mark{width:26px;height:26px;flex-shrink:0;color:var(--brand);}
.dock-logo span{white-space:nowrap;}
.dock-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.dock-nav a{
  position:relative;font-size:15px;color:var(--text-mid);white-space:nowrap;
  padding:6px 0;transition:color var(--ease);
}
.dock-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.dock-nav a:hover{color:var(--text-hi);text-decoration:none;}
.dock-nav a:hover::after{transform:scaleX(1);}
.dock-nav a.active{color:var(--brand);}
.dock-nav a.active::after{transform:scaleX(1);}
.dock-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.dock-search{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-pill);border:1px solid transparent;color:var(--text-mid);
  transition:all var(--ease);
}
.dock-search:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--line);text-decoration:none;}
.dock-search svg{width:19px;height:19px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:all var(--ease);white-space:nowrap;border:1px solid transparent;
}
.btn:hover{text-decoration:none;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:linear-gradient(180deg,#5AEBCA,var(--brand));
  color:#04231C;
  box-shadow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);
}
.btn-primary:hover{filter:brightness(1.08);color:#04231C;box-shadow:0 0 0 1px rgba(79,227,193,.55),0 12px 34px rgba(79,227,193,.32);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--text-hi);border-color:var(--line-strong);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--line-strong);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{background:var(--disabled);color:rgba(7,14,24,.6);box-shadow:none;cursor:not-allowed;filter:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;
  transition:gap var(--ease),color var(--ease);
}
.btn-text:hover{gap:10px;color:var(--brand);text-decoration:none;}
.dock-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--text-hi);align-items:center;justify-content:center;
}
.dock-toggle:hover{color:var(--brand);border-color:var(--line-strong);}
.dock-toggle svg{width:20px;height:20px;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:200;background:var(--ink-800);
  padding:24px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform 260ms cubic-bezier(.22,.61,.36,1),opacity 200ms ease,visibility 200ms;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-pill);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-hi);
}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:baseline;gap:14px;padding:18px 4px;font-size:18px;color:var(--text-hi);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand);text-decoration:none;}
.drawer-nav a.active{color:var(--brand);}
.drawer-nav .num{font-family:var(--font-mono);font-size:12px;color:var(--text-low);letter-spacing:.08em;}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:168px 0 96px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  aspect-ratio:16/9;
  filter:saturate(.75) brightness(.5);
  transform:scale(1.02);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 520px at 18% 40%,rgba(7,14,24,.55),transparent 70%),
    radial-gradient(700px 420px at 8% 0%,rgba(79,227,193,.16),transparent 68%),
    linear-gradient(180deg,rgba(7,14,24,.9) 0%,rgba(7,14,24,.72) 48%,rgba(7,14,24,.96) 100%);
}
.hero-inner{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;
}
.hero-copy{grid-column:span 7;}
.hero-copy h1{
  font-size:clamp(32px,4.2vw,52px);line-height:1.22;font-weight:700;letter-spacing:-.5px;
  color:var(--text-hi);max-width:16em;
}
.hero-copy h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-mid);max-width:30em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-bar{
  display:flex;flex-wrap:wrap;align-items:stretch;gap:0;margin-top:44px;
  border-top:1px solid var(--line);padding-top:24px;max-width:600px;
}
.trust-item{padding:0 24px;border-left:1px solid var(--line);}
.trust-item:first-child{padding-left:0;border-left:0;}
.trust-num{
  font-family:var(--font-mono);font-size:24px;font-weight:600;color:var(--text-hi);line-height:1.2;
  letter-spacing:-.02em;
}
.trust-num b{color:var(--brand);font-weight:600;}
.trust-label{font-size:13px;color:var(--text-low);margin-top:4px;line-height:1.6;}

.hero-panel{
  grid-column:span 5;
  border-radius:var(--radius-card);
  background:rgba(12,22,34,.55);
  -webkit-backdrop-filter:blur(18px) saturate(1.25);
  backdrop-filter:blur(18px) saturate(1.25);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-float);
  padding:28px;
}
.panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.panel-title{font-size:15px;font-weight:600;color:var(--text-hi);letter-spacing:.01em;}
.panel-status{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--brand);font-family:var(--font-mono);}
.dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand);display:inline-block;
  box-shadow:0 0 0 4px rgba(79,227,193,.14);
  animation:breathe 2.8s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.55;transform:scale(.85);}}
.panel-row{
  display:flex;align-items:flex-start;gap:12px;padding:16px 0;border-top:1px solid var(--line);
}
.panel-row:first-of-type{border-top:0;padding-top:0;}
.panel-row .idx{
  font-family:var(--font-mono);font-size:12px;color:var(--brand);letter-spacing:.06em;
  padding-top:3px;flex-shrink:0;
}
.panel-row h3{font-size:15px;font-weight:600;color:var(--text-hi);line-height:1.5;}
.panel-row p{font-size:13px;color:var(--text-low);line-height:1.7;margin-top:4px;}
.panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-low);font-family:var(--font-mono);
}
.panel-foot b{color:var(--accent);font-weight:600;}

/* ---------- 服务卡 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.svc-card{
  grid-column:span 3;
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  position:relative;
  box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.svc-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:16px 16px 0 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
}
.svc-card:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.svc-card--lg{grid-column:span 6;}
.svc-card--wide{grid-column:span 12;flex-direction:row;gap:32px;align-items:center;}
.svc-num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--brand);
  margin-bottom:18px;display:block;
}
.svc-icon{
  width:42px;height:42px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);border:1px solid var(--line);color:var(--brand);margin-bottom:18px;
}
.svc-icon svg{width:21px;height:21px;}
.svc-card h3{font-size:18px;font-weight:600;color:var(--text-hi);line-height:1.45;}
.svc-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-mid);}
.svc-card .btn-text{margin-top:auto;padding-top:22px;font-size:14px;}
.svc-card--wide .svc-body{flex:1;}
.svc-card--wide .btn-text{margin-top:0;padding-top:0;align-self:center;}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--brand);background:var(--brand-soft);border:1px solid var(--line);
  letter-spacing:.02em;
}
.tag--warn{color:var(--accent);background:rgba(242,162,75,.1);border-color:rgba(242,162,75,.28);}

/* ---------- 数据条 ---------- */
.metrics-band{
  background:var(--ink-800);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:0 24px;border-left:1px solid var(--line);}
.metric:first-child{padding-left:0;border-left:0;}
.metric-num{
  font-family:var(--font-mono);font-size:clamp(36px,3.4vw,48px);line-height:1.1;font-weight:600;
  color:var(--brand);letter-spacing:-.02em;
}
.metric-num sup{font-size:.42em;color:var(--text-low);top:-1.1em;margin-left:2px;font-weight:500;}
.metric-label{margin-top:10px;font-size:14px;color:var(--text-mid);line-height:1.7;}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.case-card{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);position:relative;
  transition:transform var(--ease),border-color var(--ease);
}
.case-card:hover{transform:translateY(-2px);border-color:var(--line-strong);text-decoration:none;}
.case-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--ink-600);}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.22,.61,.36,1);}
.case-card:hover .case-media img{transform:scale(1.04);}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,24,0) 45%,rgba(7,14,24,.55) 100%);
}
.case-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--accent);background:rgba(7,14,24,.7);border:1px solid rgba(242,162,75,.34);
  letter-spacing:.02em;
}
.case-body{padding:24px 28px 28px;}
.case-body h3{font-size:18px;font-weight:600;color:var(--text-hi);line-height:1.45;}
.case-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-mid);}
.case-meta{
  margin-top:16px;display:flex;gap:16px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:12px;color:var(--text-low);
}
.case-meta span b{color:var(--brand);font-weight:600;}

/* ---------- 方案列表 ---------- */
.plan-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;}
.plan-sticky{position:sticky;top:96px;align-self:start;}
.plan-sticky h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--text-hi);letter-spacing:-.3px;}
.plan-sticky p{margin-top:16px;font-size:15px;line-height:1.8;color:var(--text-mid);}
.plan-sticky .btn{margin-top:24px;}
.plan-list{border-top:1px solid var(--line);}
.plan-item{
  display:flex;align-items:center;gap:20px;padding:24px 20px 24px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--ease),padding var(--ease),transform var(--ease);
}
.plan-item:hover{background:var(--ink-600);padding-left:16px;border-radius:var(--radius-sm);text-decoration:none;}
.plan-item .num{
  font-family:var(--font-mono);font-size:13px;color:var(--brand);letter-spacing:.08em;flex-shrink:0;width:32px;
}
.plan-item .txt{flex:1;min-width:0;}
.plan-item h3{font-size:17px;font-weight:600;color:var(--text-hi);line-height:1.5;}
.plan-item p{margin-top:4px;font-size:14px;line-height:1.75;color:var(--text-mid);}
.plan-item .arrow{color:var(--text-low);flex-shrink:0;transition:color var(--ease),transform var(--ease);}
.plan-item:hover .arrow{color:var(--brand);transform:translateX(4px);}
.plan-item .arrow svg{width:18px;height:18px;}

/* ---------- 资讯 / CMS ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.news-card:hover .news-title a{color:var(--brand);}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-600);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.22,.61,.36,1);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .news-cat{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--brand);background:rgba(7,14,24,.74);border:1px solid var(--line-strong);
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text-hi);}
.news-title a{color:inherit;}
.news-title a:hover{text-decoration:none;}
.news-excerpt{
  margin-top:12px;font-size:14px;line-height:1.75;color:var(--text-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-date{
  margin-top:auto;padding-top:18px;font-family:var(--font-mono);font-size:12px;
  color:var(--text-low);letter-spacing:.04em;
}
.news-more{margin-top:14px;font-size:13px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  border:1px dashed rgba(120,200,220,.28);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;background:rgba(18,32,47,.5);
}
.empty-state .empty-icon{
  width:48px;height:48px;margin:0 auto 16px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;color:var(--text-low);
  border:1px solid var(--line);background:var(--ink-800);
}
.empty-state .empty-icon svg{width:22px;height:22px;}
.empty-state p{font-size:15px;color:var(--text-mid);}
.empty-state .btn{margin-top:20px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--text-hi);line-height:1.6;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .plus{
  position:relative;width:20px;height:20px;flex-shrink:0;transition:transform 220ms cubic-bezier(.22,.61,.36,1);
  color:var(--brand);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-item summary .plus::before{left:0;right:0;top:9px;height:2px;}
.faq-item summary .plus::after{top:0;bottom:0;left:9px;width:2px;}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-answer{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--text-mid);max-width:46em;}

/* ---------- 联系 ---------- */
.contact-layout{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start;}
.contact-info h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--text-hi);letter-spacing:-.3px;}
.contact-info > p{margin-top:16px;font-size:15px;line-height:1.8;color:var(--text-mid);max-width:26em;}
.contact-list{margin-top:32px;display:flex;flex-direction:column;gap:20px;}
.contact-item{display:flex;gap:14px;align-items:flex-start;}
.contact-item .ci-icon{
  width:36px;height:36px;flex-shrink:0;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;
}
.contact-item .ci-icon svg{width:17px;height:17px;}
.contact-item .ci-label{font-size:12px;color:var(--text-low);letter-spacing:.08em;}
.contact-item .ci-value{font-size:15px;color:var(--text-hi);margin-top:2px;line-height:1.6;}
.contact-item .ci-value a{color:var(--text-hi);}
.contact-item .ci-value a:hover{color:var(--brand);}
.form-card{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-mid);letter-spacing:.02em;}
.field label .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-sm);
  background:var(--ink-800);border:1px solid var(--line);color:var(--text-hi);
  transition:border-color var(--ease),box-shadow var(--ease);
  appearance:none;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239FB3C0' stroke-width='2'%3E%3Cpath d='M2 5l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low);}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(120,200,220,.28);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,227,193,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--err);box-shadow:0 0 0 3px rgba(255,107,107,.14);
}
.field .err-msg{display:none;font-size:12px;color:var(--err);line-height:1.6;}
.field.has-error .err-msg{display:block;}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:6px;}
.form-note{font-size:13px;color:var(--text-low);line-height:1.7;}
.form-actions .btn{min-width:180px;}
.form-success{
  display:none;text-align:center;padding:40px 12px;
}
.form-success .ok-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);border:1px solid var(--line-strong);color:var(--brand);
}
.form-success .ok-icon svg{width:24px;height:24px;}
.form-success h3{font-size:19px;font-weight:600;color:var(--text-hi);}
.form-success p{margin-top:10px;font-size:14px;color:var(--text-mid);line-height:1.8;}
.form-card.is-sent .form-grid{display:none;}
.form-card.is-sent .form-success{display:block;}

/* ---------- CTA 窄条 ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.9),rgba(7,14,24,.9));
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;line-height:1.4;font-weight:700;color:var(--text-hi);letter-spacing:-.2px;}
.cta-inner p{margin-top:8px;font-size:15px;color:var(--text-mid);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 0;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .dock-logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-mid);max-width:22em;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-low);font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:15px;color:var(--text-mid);}
.footer-col a:hover{color:var(--brand);text-decoration:none;}
.footer-col .f-item{font-size:14px;color:var(--text-mid);line-height:1.8;}
.footer-col .f-item b{color:var(--text-hi);font-weight:500;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-low);line-height:1.7;}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-mid);
  transition:all var(--ease);
}
.to-top:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none;}
.to-top svg{width:16px;height:16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:100%;padding:0 24px;}
  .dock{max-width:100%;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .hero{padding:150px 0 72px;}
  .hero-inner{grid-template-columns:repeat(6,1fr);}
  .hero-copy{grid-column:1 / -1;}
  .hero-panel{grid-column:1 / -1;margin-top:40px;}
  .svc-card{grid-column:span 6;}
  .svc-card--lg{grid-column:span 6;}
  .svc-card--wide{grid-column:span 6;flex-direction:column;align-items:flex-start;gap:0;}
  .svc-card--wide .btn-text{margin-top:22px;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .metric:nth-child(3){padding-left:0;border-left:0;}
  .case-grid{grid-template-columns:1fr;}
  .plan-layout{grid-template-columns:1fr;gap:32px;}
  .plan-sticky{position:static;}
  .contact-layout{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .dock-nav{display:none;}
  .dock-toggle{display:inline-flex;}
  .dock-tools .dock-search{display:none;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:132px 0 56px;}
  .hero-copy h1{font-size:clamp(28px,7.4vw,36px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .trust-bar{gap:20px 0;}
  .trust-item{width:50%;padding:0 16px;}
  .trust-item:nth-child(odd){padding-left:0;border-left:0;}
  .trust-num{font-size:20px;}
  .section-head h2,.plan-sticky h2,.contact-info h2{font-size:24px;}
  .svc-grid{gap:16px;}
  .svc-card,.svc-card--lg,.svc-card--wide{grid-column:1 / -1;}
  .metrics{grid-template-columns:1fr;gap:24px;}
  .metric{padding:0;border-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .metric:first-child{border-top:0;padding-top:0;}
  .news-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner h2{font-size:22px;}
  .cta-inner .btn{width:100%;}
  .plan-item{padding:20px 12px 20px 0;gap:14px;}
  .plan-item:hover{padding-left:8px;}
  .news-head{align-items:flex-start;}
}
@media (max-width:480px){
  .hero-copy h1{font-size:26px;line-height:1.28;}
  body{font-size:15px;}
  .svc-card{padding:22px;}
  .form-actions .btn{width:100%;}
  .dock{padding:0 10px 0 16px;gap:12px;}
  .dock-logo{font-size:16px;}
  .drawer-nav a{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .hero-bg{animation:none;}
}

/* roulang page: article */
:root{
  --ink-900:#070E18;
  --ink-800:#0C1622;
  --ink-700:#12202F;
  --ink-600:#1A2C3D;
  --brand:#4FE3C1;
  --brand-deep:#178C74;
  --brand-soft:rgba(79,227,193,.12);
  --accent:#F2A24B;
  --text-hi:#E8F1F5;
  --text-mid:#9FB3C0;
  --text-low:#6C8291;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(79,227,193,.38);
  --ok:#4FE3C1;
  --warn:#F2A24B;
  --err:#FF6B6B;
  --disabled:rgba(159,179,192,.35);

  --r-pill:999px;
  --r-card:16px;
  --r-sm:12px;

  --sh-card:0 12px 32px rgba(2,10,18,.45);
  --sh-float:0 20px 48px rgba(2,10,18,.6);
  --sh-glow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:180ms;

  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono","Roboto Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background-color:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(79,227,193,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,227,193,.035) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 18% -10%,rgba(79,227,193,.10),transparent 62%),
    radial-gradient(760px 460px at 88% 4%,rgba(23,140,116,.10),transparent 66%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)' opacity='.045'/%3E%3C/svg%3E");
}

img{max-width:100%;display:block;border:0;}
a{color:var(--text-hi);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ───────── Dock 导航 ───────── */
.dock-wrap{
  position:fixed;
  top:18px;left:0;right:0;
  z-index:90;
  display:flex;
  justify-content:center;
  padding:0 24px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:20px;
  width:100%;
  max-width:1120px;
  height:64px;
  padding:0 14px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(10,20,30,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 12px 32px rgba(2,10,18,.45);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.dock.is-scrolled{
  height:56px;
  background:rgba(8,17,26,.92);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--sh-float);
}
.dock-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--text-hi);
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.dock-logo:hover{color:var(--brand);text-decoration:none;}
.logo-mark{width:26px;height:26px;color:var(--brand);flex:none;}
.dock-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:16px;
  flex:1;
}
.dock-nav a{
  position:relative;
  font-size:15px;
  color:var(--text-mid);
  padding:6px 0;
  white-space:nowrap;
}
.dock-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.dock-nav a:hover{color:var(--text-hi);text-decoration:none;}
.dock-nav a:hover::after{transform:scaleX(1);}
.dock-nav a.active{color:var(--brand);}
.dock-nav a.active::after{transform:scaleX(1);}
.dock-tools{display:flex;align-items:center;gap:10px;}
.dock-search{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:var(--r-pill);
  color:var(--text-mid);
  border:1px solid transparent;
  transition:all var(--dur) var(--ease);
}
.dock-search svg{width:20px;height:20px;}
.dock-search:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none;}
.dock-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-hi);
}
.dock-toggle svg{width:20px;height:20px;}
.dock-toggle:hover{border-color:var(--line-strong);color:var(--brand);}

/* ───────── 按钮 ───────── */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.02em;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--brand);
  color:#04201A;
  box-shadow:0 8px 24px rgba(79,227,193,.18);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:var(--sh-glow);color:#04201A;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(79,227,193,.18);}
.btn-ghost{
  border-color:var(--line-strong);
  color:var(--text-hi);
  background:transparent;
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ───────── 抽屉 ───────── */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:var(--ink-800);
  padding:100px 24px 40px;
  display:none;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer-close{
  position:absolute;
  top:24px;right:24px;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-hi);
}
.drawer-close svg{width:20px;height:20px;}
.drawer a.d-item{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 4px;
  font-size:18px;
  color:var(--text-hi);
  border-bottom:1px solid var(--line);
}
.drawer a.d-item span{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--brand);
  letter-spacing:.1em;
}
.drawer a.d-item:hover{color:var(--brand);text-decoration:none;}
.drawer .btn{margin-top:26px;}

/* ───────── 面包屑 & 文章头 ───────── */
.article-hero{
  padding:140px 0 0;
  position:relative;
  z-index:1;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:420px;
  background-image:linear-gradient(180deg,rgba(7,14,24,.55) 0%,rgba(7,14,24,.94) 72%,var(--ink-900) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center top;
  filter:saturate(.75) brightness(.6);
  z-index:-1;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-low);
  line-height:1.6;
}
.crumb a{color:var(--text-low);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(108,130,145,.6);}
.crumb .current{color:var(--text-mid);}

.article-head{
  margin-top:28px;
  padding-bottom:34px;
  border-bottom:1px solid var(--line);
  max-width:900px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  border:1px solid rgba(79,227,193,.28);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
}
.badge.accent{
  background:rgba(242,162,75,.12);
  border-color:rgba(242,162,75,.34);
  color:var(--accent);
}
.article-head h1{
  margin-top:18px;
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.28;
  letter-spacing:-.4px;
  font-weight:700;
  color:var(--text-hi);
}
.article-meta{
  margin-top:20px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-low);
  letter-spacing:.02em;
}
.article-meta .dot{
  width:3px;height:3px;border-radius:50%;
  background:rgba(108,130,145,.7);
}
.article-meta b{color:var(--text-mid);font-weight:500;}

/* ───────── 正文布局 ───────── */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 220px;
  gap:56px;
  justify-content:center;
  align-items:start;
  padding-top:48px;
  padding-bottom:72px;
}
.article-body{
  font-size:16px;
  line-height:1.9;
  color:var(--text-mid);
  min-width:0;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:var(--text-hi);
  margin:48px 0 18px;
  padding-left:14px;
  border-left:3px solid var(--brand);
  scroll-margin-top:110px;
}
.article-body h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  color:var(--text-hi);
  margin:34px 0 12px;
  scroll-margin-top:110px;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  color:var(--text-hi);
  margin:26px 0 10px;
}
.article-body a{color:var(--text-hi);border-bottom:1px solid var(--line-strong);}
.article-body a:hover{color:var(--brand);text-decoration:none;}
.article-body strong{color:var(--text-hi);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none;}
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:24px;
  margin:0 0 .6em;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.78em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand-deep);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;padding-left:32px;}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-family:var(--font-mono);
  font-size:13px;
  line-height:1.9;
  color:var(--brand);
  font-weight:600;
}
.article-body blockquote{
  margin:26px 0;
  padding:20px 24px;
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--brand-soft);
  color:var(--text-hi);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  margin:26px 0 10px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--ink-600);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  line-height:1.6;
  color:var(--text-low);
  text-align:center;
}
.article-body table{
  width:100%;
  display:block;
  overflow-x:auto;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
}
.article-body thead th{
  background:var(--ink-700);
  color:var(--text-hi);
  font-weight:600;
  text-align:left;
}
.article-body th,.article-body td{
  padding:12px 16px;
  border:1px solid var(--line);
  white-space:nowrap;
}
.article-body tbody tr:nth-child(even){background:rgba(18,32,47,.55);}
.article-body pre{
  margin:26px 0;
  padding:20px;
  border-radius:var(--r-sm);
  background:var(--ink-900);
  border:1px solid var(--line);
  overflow-x:auto;
  font-family:var(--font-mono);
  font-size:13.5px;
  line-height:1.75;
  color:var(--text-mid);
}
.article-body code{
  font-family:var(--font-mono);
  font-size:.92em;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(79,227,193,.10);
  color:var(--brand);
}
.article-body pre code{padding:0;background:none;color:inherit;}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:36px 0;
}

/* 空态 */
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  background:rgba(18,32,47,.5);
  padding:64px 24px;
  text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;
  margin:0 auto 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
}
.empty-state .empty-icon svg{width:24px;height:24px;}
.empty-state h3{font-size:18px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-mid);margin-bottom:22px;}

/* 目录 */
.toc{
  position:sticky;
  top:110px;
  align-self:start;
  padding-left:18px;
  border-left:1px solid var(--line);
}
.toc-title{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.toc-title::before{
  content:"";
  width:12px;height:2px;
  background:var(--brand);
  border-radius:2px;
}
.toc ol{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc li a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--text-low);
  padding:6px 0 6px 12px;
  border-left:2px solid transparent;
  margin-left:-19px;
  transition:all var(--dur) var(--ease);
}
.toc li a:hover{color:var(--text-hi);text-decoration:none;}
.toc li a.is-current{
  color:var(--brand);
  border-left-color:var(--brand);
}
.toc li.lv3 a{padding-left:26px;font-size:13px;}

/* ───────── 相关推荐 ───────── */
.related{
  position:relative;
  z-index:1;
  padding:0 0 96px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:12px;height:2px;
  background:var(--brand);
  border-radius:2px;
}
.section-head h2{font-size:32px;line-height:1.3;}
.section-head p{font-size:15px;color:var(--text-mid);max-width:520px;margin-top:10px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--text-hi);
}
.text-link svg{width:16px;height:16px;transition:transform var(--dur) var(--ease);}
.text-link:hover{color:var(--brand);text-decoration:none;}
.text-link:hover svg{transform:translateX(4px);}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  background-image:linear-gradient(180deg,rgba(255,255,255,.06),transparent 90px);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.post-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--sh-float);
}
.post-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--ink-600);
}
.post-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 420ms var(--ease);
}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-thumb .badge{
  position:absolute;
  top:14px;left:14px;
  background:rgba(7,14,24,.78);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.post-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:22px 24px 24px;
}
.post-body h3{
  font-size:18px;
  line-height:1.5;
  font-weight:600;
  color:var(--text-hi);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-body p{
  margin-top:12px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-mid);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-foot{
  margin-top:auto;
  padding-top:20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.post-date{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-low);
}
.post-card .read{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.post-card:hover .read svg{transform:translateX(3px);}
.post-card .read svg{width:14px;height:14px;transition:transform var(--dur) var(--ease);}

/* ───────── CTA 窄条 ───────── */
.cta-strip{
  position:relative;
  z-index:1;
  padding-bottom:96px;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:36px 40px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:
    radial-gradient(520px 220px at 12% 0%,rgba(79,227,193,.14),transparent 70%),
    var(--ink-800);
  box-shadow:var(--sh-card);
}
.cta-inner h2{font-size:24px;line-height:1.4;}
.cta-inner p{margin-top:8px;font-size:15px;color:var(--text-mid);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ───────── 页脚 ───────── */
.site-footer{
  position:relative;
  z-index:1;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand .dock-logo{font-size:18px;}
.footer-brand p{
  margin-top:16px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-low);
  max-width:320px;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-low);
  margin-bottom:18px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:15px;color:var(--text-mid);}
.footer-col a:hover{color:var(--brand);text-decoration:none;}
.f-item{font-size:15px;color:var(--text-low);}
.f-item b{color:var(--text-mid);font-weight:500;font-family:var(--font-mono);font-size:14px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-low);}
.to-top{
  width:40px;height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--text-mid);
  transition:all var(--dur) var(--ease);
}
.to-top svg{width:18px;height:18px;}
.to-top:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none;}

/* ───────── 响应式 ───────── */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,760px);gap:0;}
  .toc{display:none;}
}
@media (max-width:1023px){
  .dock-nav{display:none;}
  .dock-toggle{display:inline-flex;}
  .dock{gap:12px;}
  .article-hero{padding-top:126px;}
  .section-head h2{font-size:26px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .related,.cta-strip{padding-bottom:72px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .dock-wrap{padding:0 16px;top:12px;}
  .dock{height:58px;padding:0 12px 0 16px;}
  .dock-search{display:none;}
  .article-hero{padding-top:112px;}
  .article-hero::before{height:340px;}
  .article-head h1{font-size:26px;}
  .article-layout{padding-top:36px;padding-bottom:56px;}
  .article-body h2{font-size:22px;margin-top:38px;}
  .article-body h3{font-size:17px;}
  .article-body blockquote{padding:16px 18px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-inner{padding:28px 24px;}
  .cta-inner h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .site-footer{padding-top:56px;}
  .related,.cta-strip{padding-bottom:56px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .article-head h1{font-size:24px;line-height:1.35;}
  .btn{height:44px;padding:0 18px;font-size:14px;}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;}
  .article-meta{font-size:12px;}
  .section-head h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink-900:#070E18;
  --ink-800:#0C1622;
  --ink-700:#12202F;
  --ink-600:#1A2C3D;
  --brand:#4FE3C1;
  --brand-deep:#178C74;
  --brand-soft:rgba(79,227,193,.12);
  --accent:#F2A24B;
  --text-hi:#E8F1F5;
  --text-mid:#9FB3C0;
  --text-low:#6C8291;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(79,227,193,.38);
  --ok:#4FE3C1;
  --warn:#F2A24B;
  --err:#FF6B6B;
  --disabled:rgba(159,179,192,.35);
  --r-pill:999px;
  --r-card:16px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(2,10,18,.45);
  --shadow-float:0 20px 48px rgba(2,10,18,.6);
  --shadow-glow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms var(--ease);
  --container:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 16% -12%,rgba(79,227,193,.10),transparent 62%),
    radial-gradient(720px 420px at 94% 4%,rgba(79,227,193,.06),transparent 60%),
    linear-gradient(rgba(120,200,220,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,220,.045) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(/%23n)'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block}
a{color:var(--text-hi);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
main{position:relative;z-index:1}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 20px;
  transition:top var(--t);
}
.dock{
  width:100%;
  max-width:1120px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:rgba(10,20,30,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
  transition:height var(--t),background var(--t),box-shadow var(--t);
}
.dock-wrap.shrink{top:10px}
.dock-wrap.shrink .dock{
  height:56px;
  background:rgba(9,17,26,.9);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-float);
}
.dock-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text-hi);
  white-space:nowrap;
}
.dock-logo:hover{color:var(--text-hi);text-decoration:none}
.logo-mark{width:26px;height:26px;color:var(--brand);flex:none}
.dock-nav{display:flex;align-items:center;gap:28px}
.dock-nav a{
  position:relative;
  font-size:15px;
  color:var(--text-mid);
  padding:6px 0;
  transition:color var(--t);
}
.dock-nav a:hover{color:var(--text-hi);text-decoration:none}
.dock-nav a.active{color:var(--brand)}
.dock-nav a.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.dock-tools{display:flex;align-items:center;gap:12px}
.dock-search{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  color:var(--text-mid);
  border:1px solid transparent;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.dock-search svg{width:20px;height:20px}
.dock-search:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--line);text-decoration:none}
.dock-toggle{
  display:none;
  width:38px;height:38px;
  align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-hi);
  transition:background var(--t),border-color var(--t);
}
.dock-toggle svg{width:20px;height:20px}
.dock-toggle:hover{background:var(--brand-soft);border-color:var(--line-strong)}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--ink-800);
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:28px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-hi);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px}
.drawer-close:hover{border-color:var(--line-strong);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;
  align-items:baseline;
  gap:14px;
  font-size:18px;
  color:var(--text-hi);
  padding:16px 4px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a span{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--brand);
  letter-spacing:.08em;
}
.drawer-nav a:hover{color:var(--brand);text-decoration:none}
.drawer .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t),filter var(--t);
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(135deg,#6DF0D2,var(--brand));
  color:#04140F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.06);color:#04140F;box-shadow:0 0 0 1px rgba(79,227,193,.5),0 12px 34px rgba(79,227,193,.3)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary[disabled],.btn-primary.is-disabled{background:var(--disabled);color:rgba(7,14,24,.6);box-shadow:none;cursor:not-allowed;filter:none}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-hi);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--text-hi)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:13px}
.btn-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.btn-arrow svg{width:16px;height:16px;transition:transform var(--t)}
.btn-arrow:hover{text-decoration:none;color:var(--brand)}
.btn-arrow:hover svg{transform:translateX(4px)}

/* ---------- 分类页首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:128px 0 52px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  filter:saturate(.75) brightness(.5);
  opacity:.6;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(700px 380px at 12% 10%,rgba(79,227,193,.16),transparent 60%),
    linear-gradient(90deg,rgba(7,14,24,.95),rgba(7,14,24,.78) 58%,rgba(7,14,24,.92));
  z-index:0;
}
.page-hero-inner{position:relative;z-index:1;max-width:840px}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-low);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-low)}
.breadcrumb a:hover{color:var(--brand);text-decoration:none}
.breadcrumb .sep{color:var(--text-low);opacity:.6}
.breadcrumb [aria-current]{color:var(--text-mid)}
h1{
  font-size:clamp(30px,3.8vw,46px);
  line-height:1.22;
  letter-spacing:-.5px;
  margin-bottom:16px;
}
h1 em{font-style:normal;color:var(--brand)}
.page-hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--text-mid);
  max-width:640px;
  margin-bottom:24px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--text-mid);
  background:var(--brand-soft);
  border:1px solid var(--line);
}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.tag.warn{background:rgba(242,162,75,.12);border-color:rgba(242,162,75,.3);color:var(--accent)}
.tag.warn .dot{background:var(--accent)}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand);
  margin:0 0 14px;
  font-family:var(--font-mono);
}
.eyebrow::before{content:"";width:12px;height:2px;background:var(--brand);border-radius:2px}
h2{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
}
.section-lead{font-size:16px;line-height:1.8;color:var(--text-mid);margin:0}
h3{font-size:20px;line-height:1.45;font-weight:600}

/* ---------- 卡片 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.card{
  position:relative;
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),background var(--t);
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--ink-600)}
.card-lg{grid-column:span 6;display:flex;flex-direction:column;gap:16px}
.card-sm{grid-column:span 3;display:flex;flex-direction:column;gap:14px}
.card-num{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand);
}
.card h3{font-size:18px;line-height:1.5}
.card p{font-size:15px;line-height:1.8;color:var(--text-mid);margin:0}
.card-foot{margin-top:auto;padding-top:12px}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--text-low);
}
.card-meta span{
  padding:3px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.card-lg p{max-width:52ch}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--line);
}
.split:first-of-type{border-top:none;padding-top:0}
.split:last-of-type{padding-bottom:0}
.split-media{grid-column:span 5}
.split-text{grid-column:span 7}
.split.reverse .split-media{order:2}
.split.reverse .split-text{order:1}
.figure{
  position:relative;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-600);
  aspect-ratio:4/3;
  box-shadow:var(--shadow-card);
}
.figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 320ms var(--ease);
}
.figure:hover img{transform:scale(1.04)}
.figure::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:38%;
  background:linear-gradient(180deg,transparent,rgba(7,14,24,.55));
  pointer-events:none;
}
.split-label{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--brand);
  margin-bottom:10px;
}
.split-text h3{font-size:22px;margin-bottom:14px}
.split-text p{font-size:16px;line-height:1.8;color:var(--text-mid)}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-mid);
  line-height:1.7;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand);
  opacity:.85;
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.stat{padding:32px 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat-num{
  font-family:var(--font-mono);
  font-size:clamp(32px,3.4vw,44px);
  line-height:1.1;
  color:var(--brand);
  letter-spacing:-.02em;
}
.stat-num small{font-size:13px;color:var(--text-low);margin-left:6px;letter-spacing:0}
.stat-label{font-size:14px;color:var(--text-mid);margin-top:8px;line-height:1.6}

/* ---------- 行列表 ---------- */
.row-list{border-top:1px solid var(--line)}
.row{
  display:grid;
  grid-template-columns:64px 1fr auto;
  align-items:center;
  gap:20px;
  padding:24px 20px;
  border-bottom:1px solid var(--line);
  transition:background var(--t),transform var(--t),border-color var(--t);
}
.row:hover{background:var(--ink-600);transform:translateX(4px);border-color:var(--line-strong)}
.row-num{
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--brand);
  letter-spacing:.08em;
}
.row-body h3{font-size:17px;margin-bottom:4px}
.row-body p{font-size:14px;color:var(--text-mid);margin:0;line-height:1.7}
.row-arrow{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-low);
  transition:color var(--t),border-color var(--t);
}
.row-arrow svg{width:15px;height:15px}
.row:hover .row-arrow{color:var(--brand);border-color:var(--line-strong)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--text-hi);
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:22px;
  line-height:1;
  color:var(--brand);
  flex:none;
  transition:transform 220ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-mid);
  max-width:70ch;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:40px;
  border-radius:var(--r-card);
  background:var(--ink-800);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(79,227,193,.16),transparent 66%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{font-size:26px;margin-bottom:10px}
.cta-copy p{font-size:15px;color:var(--text-mid);margin:0}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-low);margin-top:16px;max-width:32ch}
.footer-col h4{
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  color:var(--text-low);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:15px;color:var(--text-mid)}
.footer-col li a:hover{color:var(--brand);text-decoration:none}
.f-item{font-size:14px;color:var(--text-mid)}
.f-item b{color:var(--text-hi);font-weight:500;font-family:var(--font-mono);font-size:13px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border-top:1px solid var(--line);
  padding:20px 0;
  font-size:13px;
  color:var(--text-low);
}
.footer-bottom p{margin:0}
.to-top{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--text-mid);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.to-top svg{width:17px;height:17px}
.to-top:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:100%;padding:0 24px}
}
@media (max-width:1023px){
  .dock-nav{display:none}
  .dock-toggle{display:inline-flex}
  .dock{height:58px}
  .section{padding:72px 0}
  .card-lg{grid-column:span 12}
  .card-sm{grid-column:span 6}
  .split-media,.split-text{grid-column:span 12}
  .split.reverse .split-media{order:0}
  .split.reverse .split-text{order:1}
  .figure{aspect-ratio:16/10}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-hero{padding:112px 0 44px}
  h1{font-size:28px}
  h2{font-size:22px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .card-sm{grid-column:span 12}
  .card{padding:22px}
  .stats{grid-template-columns:1fr}
  .stat{border-left:none;padding:24px}
  .stat+.stat{border-top:1px solid var(--line)}
  .row{grid-template-columns:44px 1fr auto;padding:20px 12px;gap:14px}
  .cta-band{padding:28px;gap:20px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:row;align-items:center}
  .site-footer{margin-top:64px;padding-top:48px}
  .split{padding:32px 0}
}
@media (max-width:520px){
  h1{font-size:26px}
  .page-hero-lead{font-size:15px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .btn-sm{height:36px;padding:0 14px;font-size:13px}
  .hero-tags .tag{font-size:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink-900:#070E18;
  --ink-800:#0C1622;
  --ink-700:#12202F;
  --ink-600:#1A2C3D;
  --brand:#4FE3C1;
  --brand-deep:#178C74;
  --brand-soft:rgba(79,227,193,.12);
  --accent:#F2A24B;
  --accent-soft:rgba(242,162,75,.12);
  --text-hi:#E8F1F5;
  --text-mid:#9FB3C0;
  --text-low:#6C8291;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(79,227,193,.38);
  --ok:#4FE3C1;
  --warn:#F2A24B;
  --err:#FF6B6B;
  --disabled:rgba(159,179,192,.35);
  --r-pill:999px;
  --r-card:16px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(2,10,18,.45);
  --shadow-float:0 20px 48px rgba(2,10,18,.6);
  --glow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 80% -10%,rgba(79,227,193,.10),transparent 62%),
    radial-gradient(700px 420px at 5% 22%,rgba(23,140,116,.10),transparent 60%),
    linear-gradient(rgba(120,200,220,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,220,.04) 1px,transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  background-attachment:fixed;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;line-height:1.3}
p{margin:0;font-size:16px;line-height:1.8}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--text-hi);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section.tight{padding:64px 0}
.section.alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:12px;height:2px;background:var(--brand);display:inline-block;border-radius:2px}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:32px;line-height:1.3;letter-spacing:-.3px}
.sec-head p{margin-top:14px;color:var(--text-mid)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:16px;left:0;right:0;z-index:90;padding:0 24px;display:flex;justify-content:center;pointer-events:none}
.dock{
  pointer-events:auto;width:100%;max-width:1120px;height:64px;
  display:flex;align-items:center;gap:18px;padding:0 14px 0 22px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(10,20,30,.72);
  -webkit-backdrop-filter:blur(16px) saturate(1.25);
  backdrop-filter:blur(16px) saturate(1.25);
  box-shadow:0 12px 32px rgba(2,10,18,.45),inset 0 1px 0 rgba(255,255,255,.07);
  transition:height .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.dock.is-scrolled{height:56px;background:rgba(8,17,26,.92);box-shadow:0 20px 48px rgba(2,10,18,.6),inset 0 1px 0 rgba(255,255,255,.06)}
.dock-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;flex:0 0 auto}
.dock-logo:hover{color:var(--text-hi);text-decoration:none}
.logo-mark{width:26px;height:26px;color:var(--brand);flex:0 0 auto}
.dock-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.dock-nav a{position:relative;font-size:15px;color:var(--text-mid);padding:6px 0;font-weight:500}
.dock-nav a:hover{color:var(--text-hi);text-decoration:none}
.dock-nav a.active{color:var(--brand)}
.dock-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--brand);border-radius:2px}
.dock-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.dock-nav + .dock-tools{margin-left:0}
.dock-search{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-pill);border:1px solid transparent;color:var(--text-mid);transition:all .18s var(--ease)}
.dock-search svg{width:20px;height:20px}
.dock-search:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none}
.dock-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--text-hi)}
.dock-toggle svg{width:20px;height:20px}
.dock-toggle:hover{border-color:var(--line-strong);color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:all .18s var(--ease);cursor:pointer;white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#062019;box-shadow:0 8px 24px rgba(79,227,193,.18)}
.btn-primary:hover{background:#63ebcb;color:#041713;box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(79,227,193,.2)}
.btn-ghost{border-color:var(--line-strong);color:var(--text-hi);background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{color:var(--disabled);background:var(--ink-700);border-color:var(--line);cursor:not-allowed;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-hi)}
.link-arrow svg{width:16px;height:16px;transition:transform .18s var(--ease)}
.link-arrow:hover{color:var(--brand);text-decoration:none}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 分类页顶部 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:136px 0 64px}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  filter:saturate(.7) brightness(.42);
  opacity:.85;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 340px at 22% 10%,rgba(7,14,24,.35),rgba(7,14,24,.9) 78%),
    linear-gradient(180deg,rgba(7,14,24,.72),rgba(7,14,24,.94));
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-low);margin-bottom:18px}
.breadcrumb a{color:var(--text-low)}
.breadcrumb a:hover{color:var(--brand);text-decoration:none}
.breadcrumb span.sep{color:rgba(159,179,192,.45)}
.breadcrumb .cur{color:var(--text-mid)}
.page-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.22;letter-spacing:-.5px;max-width:920px}
.page-hero-lead{margin-top:16px;font-size:17px;color:var(--text-mid);max-width:640px}
.page-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(12,22,34,.72);font-size:13px;color:var(--text-mid)}
.tag.accent{border-color:rgba(242,162,75,.36);color:var(--accent);background:var(--accent-soft)}

/* ---------- 卡片矩阵 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.m-card{
  position:relative;display:flex;flex-direction:column;
  padding:28px;border-radius:var(--r-card);
  background:var(--ink-700);border:1px solid var(--line);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.m-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.09),transparent)}
.m-card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--ink-600);box-shadow:var(--shadow-float)}
.m-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.m-num{font-family:var(--mono);font-size:13px;letter-spacing:.08em;color:var(--brand);opacity:.9}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;border:1px solid var(--line);color:var(--text-mid);background:rgba(7,14,24,.5)}
.badge.accent{color:var(--accent);border-color:rgba(242,162,75,.4);background:var(--accent-soft)}
.badge.brand{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft)}
.m-card h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:10px}
.m-card p{font-size:15px;line-height:1.8;color:var(--text-mid)}
.m-card-foot{margin-top:auto;padding-top:20px}
.m-card-wide{grid-column:span 2}
.m-card-wide h3{font-size:22px}
.m-card-full{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:space-between;gap:32px;padding:32px}
.m-card-full .m-body{max-width:720px}
.m-card-full h3{font-size:20px}
.m-card-full .m-actions{flex:0 0 auto}

/* ---------- 指标条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:36px 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat-num{font-family:var(--mono);font-size:clamp(32px,3.4vw,44px);line-height:1.1;color:var(--brand);font-weight:600;letter-spacing:-.02em}
.stat-num small{font-size:14px;color:var(--text-mid);margin-left:4px;font-weight:500}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-mid)}

/* ---------- 规格列表 ---------- */
.spec-list{border-top:1px solid var(--line)}
.spec-row{
  display:grid;grid-template-columns:64px 220px 1fr auto;align-items:center;gap:24px;
  padding:24px 12px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease),transform .18s var(--ease),padding-left .18s var(--ease);
}
.spec-row:hover{background:var(--ink-600);padding-left:20px}
.spec-idx{font-family:var(--mono);font-size:13px;color:var(--text-low)}
.spec-name{font-size:17px;font-weight:600;color:var(--text-hi)}
.spec-desc{font-size:15px;color:var(--text-mid)}
.spec-meta{font-family:var(--mono);font-size:13px;color:var(--brand);white-space:nowrap;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 12px}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--ink-600)}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .32s var(--ease)}
.split-media:hover img{transform:scale(1.04)}
.split-body h2{font-size:32px;line-height:1.3;margin-bottom:16px}
.split-body > p{margin-bottom:22px}
.check-list li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(120,200,220,.16);
  font-size:15px;color:var(--text-mid);
}
.check-list li:last-child{border-bottom:none}
.check-list .dot{flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--brand);box-shadow:0 0 0 3px rgba(79,227,193,.12)}
.check-list b{color:var(--text-hi);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text-hi);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .plus{flex:0 0 auto;width:22px;height:22px;color:var(--brand);transition:transform .22s var(--ease)}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--text-mid)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(23,140,116,.22),rgba(12,22,34,.9) 62%);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-card);
}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(79,227,193,.18),transparent 68%);pointer-events:none}
.cta-band h2{font-size:28px;line-height:1.35;max-width:640px}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-mid);max-width:560px}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .dock-logo{margin-bottom:16px;font-size:18px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-low);max-width:300px}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-low);font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:15px;color:var(--text-mid)}
.footer-col ul li a:hover{color:var(--brand);text-decoration:none}
.f-item{font-size:15px;color:var(--text-low)}
.f-item b{color:var(--text-mid);font-weight:500}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 28px;border-top:1px solid var(--line)}
.footer-bottom p{font-size:13px;color:var(--text-low)}
.to-top{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);color:var(--text-mid);transition:all .18s var(--ease)}
.to-top svg{width:18px;height:18px}
.to-top:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none;transform:translateY(-2px)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:95;display:none;
  background:var(--ink-800);padding:24px;
  flex-direction:column;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-hi)}
.drawer-close svg{width:18px;height:18px}
.drawer-nav a{display:flex;align-items:baseline;gap:14px;padding:18px 4px;border-bottom:1px solid var(--line);font-size:18px;color:var(--text-hi);font-weight:600}
.drawer-nav a:hover{color:var(--brand);text-decoration:none}
.drawer-nav a .idx{font-family:var(--mono);font-size:12px;color:var(--text-low)}
.drawer-nav a.active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn{width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .dock-nav{gap:18px}
  .dock-nav a{font-size:14px}
  .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .m-card-wide{grid-column:span 2}
  .m-card-full{flex-direction:column;align-items:flex-start}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(3){border-left:none}
  .stat{border-top:1px solid var(--line)}
  .stat:nth-child(1),.stat:nth-child(2){border-top:none}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .spec-row{grid-template-columns:48px 1fr;grid-template-areas:"idx name" "desc desc" "meta meta";gap:10px 16px}
  .spec-idx{grid-area:idx}.spec-name{grid-area:name}.spec-desc{grid-area:desc}.spec-meta{grid-area:meta;justify-self:start}
}
@media (max-width:767px){
  .dock-wrap{padding:0 16px;top:12px}
  .dock{height:58px;padding:0 10px 0 16px}
  .dock-nav,.dock-search{display:none}
  .dock-toggle{display:inline-flex}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero{padding:108px 0 48px}
  .page-hero-lead{font-size:16px}
  .sec-head h2,.split-body h2{font-size:24px}
  .matrix-grid{grid-template-columns:1fr}
  .m-card-wide,.m-card-full{grid-column:span 1}
  .m-card{padding:24px}
  .stats{grid-template-columns:1fr}
  .stat{border-left:none;padding:24px 20px}
  .stat:nth-child(2){border-top:1px solid var(--line)}
  .cta-band{padding:28px}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .site-footer{margin-top:56px}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  body{font-size:15px}
  p{font-size:15px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .faq-q{font-size:15px;padding:18px 2px}
  .breadcrumb{font-size:13px;flex-wrap:wrap}
  .footer-brand p{max-width:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category3 */
:root{
  --ink-900:#070E18;
  --ink-800:#0C1622;
  --ink-700:#12202F;
  --ink-600:#1A2C3D;
  --brand:#4FE3C1;
  --brand-deep:#178C74;
  --brand-soft:rgba(79,227,193,.12);
  --accent:#F2A24B;
  --text-hi:#E8F1F5;
  --text-mid:#9FB3C0;
  --text-low:#6C8291;
  --line:rgba(120,200,220,.14);
  --line-strong:rgba(79,227,193,.38);
  --ok:#4FE3C1;
  --warn:#F2A24B;
  --err:#FF6B6B;
  --disabled:rgba(159,179,192,.35);
  --r-pill:999px;
  --r-card:16px;
  --r-sm:12px;
  --shadow-card:0 12px 32px rgba(2,10,18,.45);
  --shadow-float:0 20px 48px rgba(2,10,18,.6);
  --shadow-glow:0 0 0 1px rgba(79,227,193,.35),0 8px 28px rgba(79,227,193,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:180ms;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1100px 560px at 78% -12%, rgba(79,227,193,.10), transparent 62%),
    radial-gradient(800px 420px at 4% 8%, rgba(242,162,75,.045), transparent 60%),
    linear-gradient(rgba(120,200,220,.042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,220,.042) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.04;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='140' height='140' filter='url(/%23n)'/></svg>");
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--text-hi);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(79,227,193,.28);color:#EAFBF6;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;z-index:1;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--brand);
  margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:12px;height:2px;background:var(--brand);border-radius:2px;}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head h2{font-size:32px;line-height:1.3;}
.sec-head p{margin-top:14px;font-size:16px;color:var(--text-mid);max-width:640px;}
.mono{font-family:var(--mono);}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:16px;left:0;right:0;z-index:100;
  display:flex;justify-content:center;padding:0 20px;
}
.dock{
  width:100%;max-width:1120px;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 20px;border-radius:var(--r-pill);
  background:rgba(10,20,30,.72);
  -webkit-backdrop-filter:blur(16px) saturate(1.25);
  backdrop-filter:blur(16px) saturate(1.25);
  border:1px solid var(--line);
  box-shadow:var(--shadow-float),inset 0 1px 0 rgba(255,255,255,.07);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.dock.scrolled{
  height:56px;
  background:rgba(8,16,25,.92);
  box-shadow:0 24px 56px rgba(2,10,18,.72),inset 0 1px 0 rgba(255,255,255,.06);
}
.dock-logo{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:17px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;
}
.dock-logo:hover{color:var(--text-hi);text-decoration:none;}
.logo-mark{width:26px;height:26px;color:var(--brand);flex:0 0 auto;}
.dock-nav{display:flex;flex:1;justify-content:center;align-items:center;gap:28px;}
.dock-nav a{position:relative;font-size:15px;color:var(--text-mid);padding:6px 0;}
.dock-nav a:hover{color:var(--text-hi);text-decoration:none;}
.dock-nav a.active{color:var(--brand);}
.dock-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(79,227,193,.6);
}
.dock-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.dock-search{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;color:var(--text-mid);
  border:1px solid transparent;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.dock-search svg{width:20px;height:20px;}
.dock-search:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--line-strong);text-decoration:none;}
.dock-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  place-items:center;color:var(--text-hi);border:1px solid var(--line);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.dock-toggle svg{width:20px;height:20px;}
.dock-toggle:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;
  transition:filter var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#04201A;box-shadow:0 8px 28px rgba(79,227,193,.22);}
.btn-primary:hover{filter:brightness(1.08);box-shadow:var(--shadow-glow);color:#04201A;text-decoration:none;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line-strong);color:var(--text-hi);background:rgba(255,255,255,.02);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);text-decoration:none;}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{background:var(--disabled);color:rgba(7,14,24,.6);box-shadow:none;cursor:not-allowed;filter:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.text-link svg{width:16px;height:16px;transition:transform var(--dur) var(--ease);}
.text-link:hover{text-decoration:none;color:var(--brand);}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- 分类首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:124px 0 52px;
  border-bottom:1px solid var(--line);
  z-index:1;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  filter:saturate(.7) brightness(.5);
  opacity:.62;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(880px 320px at 18% 18%, rgba(79,227,193,.18), transparent 68%),
    linear-gradient(180deg, rgba(7,14,24,.58), rgba(7,14,24,.94) 88%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-low);margin-bottom:20px;}
.crumbs a{color:var(--text-low);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:rgba(108,130,145,.7);}
.crumbs .current{color:var(--text-mid);}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.24;letter-spacing:-.5px;
  max-width:760px;
}
.page-hero .lead{margin-top:16px;font-size:16px;color:var(--text-mid);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-mid);
  background:rgba(255,255,255,.03);
}
.badge-brand{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);}
.badge-accent{color:var(--accent);border-color:rgba(242,162,75,.34);background:rgba(242,162,75,.1);}

/* ---------- 指标条 ---------- */
.metrics{background:var(--ink-800);border-bottom:1px solid var(--line);position:relative;z-index:1;}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:28px 24px;border-left:1px solid var(--line);}
.metric:first-child{border-left:0;}
.metric-num{
  font-family:var(--mono);font-weight:600;
  font-size:clamp(36px,3.4vw,48px);line-height:1.1;color:var(--brand);
  letter-spacing:-1px;
}
.metric-num small{font-size:14px;font-weight:400;color:var(--text-mid);margin-left:4px;letter-spacing:0;}
.metric-label{font-size:14px;color:var(--text-mid);margin-top:8px;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:940px;margin:0 auto;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(79,227,193,.85),rgba(79,227,193,.10));
}
.tl-item{position:relative;padding:0 0 32px 68px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:13px;font-weight:600;color:var(--brand);
  background:var(--ink-800);
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 6px rgba(7,14,24,.85);
}
.tl-card{
  background:var(--ink-700);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 28px;
  background-image:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,0) 42%);
  box-shadow:var(--shadow-card);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.tl-card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:0 18px 40px rgba(2,10,18,.55);}
.tl-card h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--text-mid);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12px;padding:4px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-mid);background:rgba(255,255,255,.02);
  font-family:var(--mono);
}

/* ---------- 图文对照 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.figure{
  position:relative;overflow:hidden;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--ink-600);
  aspect-ratio:4/3;box-shadow:var(--shadow-card);
}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.figure:hover img{transform:scale(1.04);}
.figure:hover{border-color:var(--line-strong);}
.check-list{border-top:1px solid var(--line);}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-mid);
}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;
  border-radius:2px;background:var(--brand);
}
.check-list b{color:var(--text-hi);font-weight:600;}

/* ---------- 方案行列表 ---------- */
.plan-grid{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start;}
.plan-side{position:sticky;top:96px;}
.plan-side h2{font-size:32px;line-height:1.3;}
.plan-side p{margin-top:14px;font-size:15px;color:var(--text-mid);}
.plan-side .btn{margin-top:24px;}
.plan-rows{border-top:1px solid var(--line);}
.plan-row{
  display:grid;grid-template-columns:48px 1fr 24px;gap:16px;align-items:center;
  padding:22px 12px;border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),border-radius var(--dur) var(--ease);
}
.plan-row:hover{background:var(--ink-600);border-radius:var(--r-sm);transform:translateX(4px);}
.plan-num{font-family:var(--mono);font-size:13px;color:var(--brand);letter-spacing:.06em;}
.plan-row h3{font-size:18px;line-height:1.45;margin-bottom:4px;}
.plan-row p{font-size:14px;color:var(--text-mid);}
.plan-row .arrow{color:var(--text-low);display:grid;place-items:center;}
.plan-row .arrow svg{width:18px;height:18px;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);}
.plan-row:hover .arrow svg{color:var(--brand);transform:translateX(3px);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-hi);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--brand);}
.plus{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform 220ms var(--ease);}
.plus::before,.plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.plus::before{left:0;right:0;top:7px;height:2px;}
.plus::after{top:0;bottom:0;left:7px;width:2px;}
.faq-q[aria-expanded="true"] .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms var(--ease);}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--text-mid);}
.faq-foot{max-width:820px;margin:28px auto 0;text-align:center;}

/* ---------- CTA ---------- */
.cta-band{padding:72px 0;position:relative;z-index:1;}
.cta-card{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:48px;border-radius:var(--r-card);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(79,227,193,.16),rgba(18,32,47,.92) 46%,rgba(12,22,34,.96));
  box-shadow:var(--shadow-float);
}
.cta-card h2{font-size:28px;line-height:1.32;max-width:520px;}
.cta-card p{margin-top:12px;font-size:15px;color:var(--text-mid);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 0;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand p{margin-top:16px;font-size:15px;color:var(--text-mid);max-width:300px;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-low);font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li:last-child{margin-bottom:0;}
.footer-col a{font-size:15px;color:var(--text-mid);}
.footer-col a:hover{color:var(--brand);}
.f-item{font-size:15px;color:var(--text-mid);}
.f-item b{color:var(--text-hi);font-weight:500;font-family:var(--mono);font-size:14px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;border-top:1px solid var(--line);}
.footer-bottom p{font-size:13px;color:var(--text-low);line-height:1.6;}
.to-top{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:grid;place-items:center;color:var(--text-mid);
  border:1px solid var(--line);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.to-top svg{width:18px;height:18px;}
.to-top:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);text-decoration:none;transform:translateY(-2px);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;
  display:flex;flex-direction:column;
  padding:20px;overflow-y:auto;
  background:var(--ink-800);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  pointer-events:none;
  transition:transform 240ms var(--ease);
}
.drawer.open{transform:none;pointer-events:auto;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.drawer-close{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;color:var(--text-hi);
  border:1px solid var(--line);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.drawer-close svg{width:18px;height:18px;}
.drawer-close:hover{color:var(--brand);border-color:var(--line-strong);background:var(--brand-soft);}
.drawer-nav{display:flex;flex-direction:column;margin:28px 0 32px;}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;
  font-size:18px;color:var(--text-hi);
  padding:16px 0;border-bottom:1px solid var(--line);
}
.drawer-nav a span{font-family:var(--mono);font-size:12px;color:var(--brand);letter-spacing:.08em;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);text-decoration:none;}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .dock{max-width:100%;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .sec-head h2,.plan-side h2{font-size:28px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .plan-grid{grid-template-columns:1fr;gap:32px;}
  .plan-side{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{padding:36px;}
  .cta-card h2{font-size:24px;}
  .dock-nav{gap:20px;}
}
@media (max-width:900px){
  .dock-nav{display:none;}
  .dock-toggle{display:grid;}
  .dock-search{display:none;}
  .dock{height:56px;padding:0 10px 0 16px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .sec-head h2,.plan-side h2{font-size:22px;}
  .page-hero{padding:110px 0 44px;}
  .page-hero .lead{font-size:15px;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric{border-left:1px solid var(--line);border-top:1px solid var(--line);}
  .metric:nth-child(odd){border-left:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0;}
  .metric-num{font-size:36px;}
  .plan-row{grid-template-columns:40px 1fr;gap:12px;}
  .plan-row .arrow{display:none;}
  .cta-band{padding:56px 0;}
  .cta-card{padding:28px 24px;}
  .faq-q{font-size:15px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .page-hero h1{font-size:26px;letter-spacing:-.2px;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{border-left:0;}
  .metric:nth-child(2){border-top:1px solid var(--line);}
  .timeline::before{left:16px;}
  .tl-item{padding-left:52px;padding-bottom:26px;}
  .tl-dot{width:34px;height:34px;font-size:12px;}
  .tl-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-card h2{font-size:21px;}
  .hero-actions .btn{width:100%;}
  .btn{height:46px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}