/* roulang page: index */
:root{
  --ink:#0E1113;
  --brand:#0FA37F;
  --brand-d:#0B7D62;
  --accent:#FF6B35;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --line:#E5E3DC;
  --text:#1A1D1F;
  --text-2:#5C6268;
  --text-3:#8A9096;
  --ok:#1F9D6B;
  --warn:#D9822B;
  --err:#C8452F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,19,.05);
  --sh-2:0 12px 28px rgba(14,17,19,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"JetBrains Mono","Roboto Mono",Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(15,163,127,.22);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container-narrow{max-width:820px;}

.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--plain{background:var(--bg);}
.section--card{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--dark{background:var(--ink);color:#fff;}
.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--brand-d);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:block;}
.section--dark .eyebrow{color:var(--brand);}
.section-title{font-size:clamp(26px,3.1vw,38px);}
.section-desc{margin-top:16px;max-width:720px;color:var(--text-2);font-size:16.5px;}
.section--dark .section-desc{color:rgba(255,255,255,.72);}
.section-head{margin-bottom:48px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(11,125,98,.24);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-d);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-d);border-bottom:1px solid rgba(15,163,127,.4);padding-bottom:2px;transition:color 180ms var(--ease),border-color 180ms var(--ease);}
.link-arrow:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--card);font-size:12.5px;color:var(--text-2);white-space:nowrap;
}
.tag--brand{color:var(--brand-d);border-color:rgba(15,163,127,.32);background:rgba(15,163,127,.07);}
.tag--accent{color:#B5451D;border-color:rgba(255,107,53,.32);background:rgba(255,107,53,.09);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 200ms var(--ease);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(14,17,19,.07);}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
  max-width:1240px;margin:0 auto;padding:0 24px;height:76px;
  transition:height 200ms var(--ease);
}
.site-header.is-stuck .nav-wrap{height:64px;}
.nav-left{display:flex;align-items:center;gap:26px;justify-self:start;}
.nav-right{display:flex;align-items:center;gap:26px;justify-self:end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color 160ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 160ms var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-d);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  justify-self:center;font-size:19px;font-weight:700;letter-spacing:-.01em;
  color:var(--text);display:inline-flex;align-items:center;gap:9px;white-space:nowrap;
}
.brand::before{
  content:"";width:12px;height:12px;border-radius:4px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));
  box-shadow:0 0 0 3px rgba(15,163,127,.14);
}
.brand:hover{color:var(--brand-d);}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  transition:background 180ms var(--ease),transform 180ms var(--ease);
}
.nav-cta:hover{background:var(--brand-d);transform:translateY(-1px);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--card);
  transform:translateY(-102%);transition:transform 220ms var(--ease);
  display:flex;flex-direction:column;padding:20px 20px 32px;
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);cursor:pointer;position:relative;
}
.drawer-close::before,.drawer-close::after{
  content:"";position:absolute;left:12px;top:21px;width:20px;height:2px;background:var(--text);
}
.drawer-close::before{transform:rotate(45deg);}
.drawer-close::after{transform:rotate(-45deg);}
.drawer-nav{margin-top:12px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--text-2);
}
.drawer-nav a.is-active{color:var(--brand-d);font-weight:600;}
.drawer-nav a::after{content:"›";font-size:20px;color:var(--text-3);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.24;}
.hero__glow{
  position:absolute;inset:0;
  background:
    radial-gradient(560px 360px at 74% 12%, rgba(15,163,127,.20), transparent 68%),
    linear-gradient(180deg, rgba(14,17,19,.42) 0%, rgba(14,17,19,.86) 62%, var(--ink) 100%);
}
.hero__inner{position:relative;z-index:2;padding:84px 0 0;}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;padding-bottom:64px;}
.hero-copy{grid-column:span 7;}
.hero-panel{grid-column:span 5;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;
}
.hero-kicker::before{content:"";width:24px;height:1px;background:var(--brand);}
.hero h1{
  margin-top:22px;font-size:clamp(34px,4.6vw,58px);line-height:1.14;
  letter-spacing:-.025em;color:#fff;max-width:15em;
}
.hero-sub{margin-top:22px;max-width:32em;font-size:17px;line-height:1.7;color:rgba(255,255,255,.74);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-panel{
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
  background:rgba(255,255,255,.03);padding:24px;
}
.hero-panel__head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);}
.hero-panel__head b{font-family:var(--mono);font-weight:500;color:var(--brand);}
.hero-panel__grid{display:grid;grid-template-columns:1fr 1fr;margin-top:18px;}
.hero-panel__cell{padding:18px 14px;border-top:1px solid rgba(255,255,255,.12);}
.hero-panel__cell:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
.hero-panel__cell:nth-child(1),.hero-panel__cell:nth-child(2){border-top:0;padding-top:8px;}
.hero-panel__num{font-family:var(--mono);font-size:28px;font-weight:600;color:#fff;letter-spacing:-.03em;line-height:1.2;}
.hero-panel__num em{font-style:normal;font-size:13px;color:var(--brand);margin-left:5px;letter-spacing:0;}
.hero-panel__label{margin-top:6px;font-size:13px;color:rgba(255,255,255,.6);}
.hero-strip{border-top:1px solid rgba(255,255,255,.10);}
.hero-strip__inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;
  padding:18px 0;font-family:var(--mono);font-size:12.5px;color:rgba(255,255,255,.6);
}
.hero-strip__inner span{display:inline-flex;align-items:center;gap:9px;}
.hero-strip__inner span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);display:block;}

/* ---------- 指标看板 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--card);overflow:hidden;
}
.metric{padding:32px 28px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric__num{font-family:var(--mono);font-size:40px;font-weight:600;letter-spacing:-.04em;line-height:1.1;color:var(--text);}
.metric__num span{font-size:15px;font-weight:500;color:var(--text-3);margin-left:5px;letter-spacing:0;}
.metric__label{margin-top:10px;font-size:14px;color:var(--text-2);}
.metric__delta{margin-top:14px;font-family:var(--mono);font-size:12.5px;color:var(--brand-d);}
.metric__delta.is-flat{color:var(--text-3);}

/* ---------- 服务矩阵 ---------- */
.matrix{border-top:1px solid var(--line);}
.matrix-row{
  display:grid;grid-template-columns:64px minmax(0,6fr) minmax(0,3fr);
  gap:32px;align-items:center;padding:28px 10px;
  border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.matrix-row:hover{background:var(--bg);}
.matrix-row__no{font-family:var(--mono);font-size:14px;color:var(--text-3);letter-spacing:.04em;transition:color 200ms var(--ease);}
.matrix-row:hover .matrix-row__no{color:var(--brand);}
.matrix-row__title{font-size:20px;}
.matrix-row__desc{margin-top:8px;font-size:15.5px;color:var(--text-2);max-width:52em;}
.matrix-row__tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;}

/* ---------- 对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.compare-col{border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);padding:30px;}
.compare-col--brand{border-color:rgba(15,163,127,.34);}
.compare-col__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.compare-col__head h3{font-size:17px;}
.compare-col__list{margin-top:6px;}
.compare-item{padding:18px 0;border-bottom:1px dashed var(--line);}
.compare-item:last-child{border-bottom:0;padding-bottom:0;}
.compare-item p{font-size:15px;color:var(--text-2);}
.compare-col--brand .compare-item p{color:var(--text);}
.compare-bar{margin-top:12px;height:8px;border-radius:999px;background:#DEDCD5;overflow:hidden;}
.compare-bar i{display:block;height:100%;border-radius:999px;background:#C4C1B8;}
.compare-col--brand .compare-bar i{background:linear-gradient(90deg,var(--brand),var(--brand-d));}
.compare-tag{margin-top:10px;font-family:var(--mono);font-size:12px;color:var(--text-3);}
.compare-col--brand .compare-tag{color:var(--brand-d);}

/* ---------- 内容卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(15,163,127,.28);}
.post-card__cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#EDEAE3;}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease);}
.post-card:hover .post-card__cover img{transform:scale(1.03);}
.post-card__badge{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  color:#fff;background:rgba(14,17,19,.72);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.post-card__body{display:flex;flex-direction:column;flex:1;padding:22px;}
.post-card__title{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color 180ms var(--ease);}
.post-card__title a{color:inherit;}
.post-card:hover .post-card__title{color:var(--brand-d);}
.post-card__excerpt{
  margin-top:10px;font-size:14.5px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);font-size:12.5px;color:var(--text-3);
}
.post-card__meta span:last-child{color:var(--brand-d);}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);
  color:var(--text-2);font-size:15px;text-align:center;padding:36px 24px;
}
.empty-state svg{width:26px;height:26px;stroke:var(--text-3);fill:none;stroke-width:1.6;}
.empty-state a{color:var(--brand-d);border-bottom:1px solid rgba(15,163,127,.4);}

/* ---------- 口碑 ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.proof-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.proof-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.proof-card p{font-size:15.5px;color:var(--text-2);}
.proof-card__who{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--text-3);}
.proof-card__who b{color:var(--text);font-weight:600;font-size:14px;}
.proof-strip{
  margin-top:32px;display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);overflow:hidden;
}
.proof-strip div{padding:24px 26px;border-right:1px solid var(--line);}
.proof-strip div:last-child{border-right:0;}
.proof-strip b{display:block;font-family:var(--mono);font-size:26px;font-weight:600;letter-spacing:-.03em;color:var(--text);}
.proof-strip small{display:block;margin-top:6px;font-size:13.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  list-style:none;cursor:pointer;padding:24px 4px;
  font-size:18px;font-weight:600;color:var(--text);
  transition:color 180ms var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand-d);}
.faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq .icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq .icon::before,.faq .icon::after{content:"";position:absolute;background:var(--text-2);transition:transform 180ms var(--ease),background 180ms var(--ease);}
.faq .icon::before{left:0;top:8px;width:18px;height:2px;}
.faq .icon::after{left:8px;top:0;width:2px;height:18px;transform-origin:center;}
.faq details[open] summary{color:var(--brand-d);}
.faq details[open] .icon::before{background:var(--brand);}
.faq details[open] .icon::after{transform:scaleY(0);background:var(--brand);}
.faq__answer{max-width:720px;padding:0 4px 26px;font-size:16px;color:var(--text-2);}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start;}
.contact-copy h2{font-size:clamp(26px,3vw,36px);}
.contact-copy p{margin-top:18px;color:rgba(255,255,255,.72);font-size:16.5px;max-width:34em;}
.contact-list{margin-top:32px;border-top:1px solid rgba(255,255,255,.12);}
.contact-list li{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.72);font-size:15px;display:flex;gap:12px;}
.contact-list li b{color:var(--brand);font-family:var(--mono);font-weight:500;font-size:13px;min-width:28px;line-height:1.75;}
.contact-card{background:var(--card);color:var(--text);border-radius:var(--r-card);padding:36px;box-shadow:var(--sh-2);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-2);font-weight:500;}
.req{color:var(--accent);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.65;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,163,127,.16);
}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:6px;}
.form-note{font-size:13px;color:var(--text-3);max-width:24em;}
.form-msg{grid-column:1 / -1;font-size:14px;color:var(--ok);display:none;}
.form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 30px;border-left:1px solid rgba(255,255,255,.08);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;}
.footer-brand::before{content:"";width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,var(--brand),var(--brand-d));}
.footer-slogan{margin-top:14px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.6);max-width:22em;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a{display:block;padding:7px 0;font-size:14.5px;color:rgba(255,255,255,.7);transition:color 180ms var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 440ms var(--ease),transform 440ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:63.94em){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .nav-wrap{grid-template-columns:44px 1fr 44px;height:64px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;justify-self:start;}
  .brand{font-size:17px;}
  .hero__inner{padding-top:56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:48px;}
  .hero-copy,.hero-panel{grid-column:auto;}
  .hero h1{max-width:none;}
  .metrics{grid-template-columns:1fr 1fr;}
  .metric{border-bottom:1px solid var(--line);}
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-child(3),.metric:nth-child(4){border-bottom:0;}
  .matrix-row{grid-template-columns:48px 1fr;gap:20px;}
  .matrix-row__tags{grid-column:2;justify-content:flex-start;}
  .compare{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr 1fr;}
  .proof-grid{grid-template-columns:1fr;}
  .proof-strip{grid-template-columns:1fr;}
  .proof-strip div{border-right:0;border-bottom:1px solid var(--line);}
  .proof-strip div:last-child{border-bottom:0;}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){border-left:0;padding-left:0;}
}
@media (max-width:40em){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero__inner{padding-top:44px;}
  .hero-cta .btn{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0 !important;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .post-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .contact-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-col{padding:0;border-left:0;}
  .faq summary{font-size:16.5px;padding:20px 2px;}
  .hero h1{font-size:clamp(30px,8.6vw,38px);}
}

/* roulang page: article */
:root{
  --ink:#0E1113;
  --brand:#0FA37F;
  --brand-d:#0B7D62;
  --accent:#FF6B35;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --line:#E5E3DC;
  --text:#1A1D1F;
  --text-2:#5C6268;
  --text-3:#8A9096;
  --ok:#1F9D6B;
  --warn:#D9822B;
  --err:#C8452F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(14,17,19,.05);
  --sh-2:0 12px 28px rgba(14,17,19,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --mono:ui-monospace,"JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --maxw:1240px;
  --narrow:820px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px);}
.container-narrow{width:100%;max-width:var(--narrow);margin:0 auto;padding:0 clamp(16px,4vw,32px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{
  background:var(--card);
  border-bottom-color:var(--line);
  box-shadow:0 1px 2px rgba(14,17,19,.05);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  height:76px;
  transition:height .2s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.nav-left{display:flex;align-items:center;gap:28px;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:28px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;font-weight:500;
  color:var(--text);
  letter-spacing:0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .16s var(--ease);
}
.nav-link:hover{color:var(--brand-d);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--ink);
  white-space:nowrap;
}
.brand-mark{
  width:12px;height:12px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 0 4px rgba(15,163,127,.14);
  flex:none;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);color:var(--text);cursor:pointer;
  align-items:center;justify-content:center;font-size:16px;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.header-side{display:flex;justify-content:flex-end;}
.mobile-panel{
  display:none;
  position:fixed;inset:76px 0 0 0;z-index:79;
  background:var(--card);
  border-top:1px solid var(--line);
  padding:8px 0 24px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;
  min-height:52px;padding:0 clamp(16px,4vw,32px);
  font-size:16px;font-weight:500;
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--brand);}
.mobile-panel a:hover{color:var(--brand);}

@media (max-width:63.94em){
  .nav-left,.nav-right{display:none;}
  .header-inner{grid-template-columns:44px 1fr 44px;gap:8px;}
  .header-side{justify-content:flex-start;}
  .header-side .nav-toggle{display:inline-flex;}
  .brand{justify-content:center;font-size:17px;}
}

/* ---------- article banner ---------- */
.article-banner{
  position:relative;
  background-image:linear-gradient(180deg,rgba(14,17,19,.86),rgba(14,17,19,.94)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:clamp(40px,6vw,72px) 0 clamp(48px,7vw,84px);
  overflow:hidden;
}
.article-banner::after{
  content:"";position:absolute;inset:auto -10% -60% -10%;height:70%;
  background:radial-gradient(ellipse at 50% 100%,rgba(15,163,127,.16),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.62);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.62);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.32);}
.breadcrumb .current{color:rgba(255,255,255,.9);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-banner h1{
  position:relative;z-index:2;
  color:#fff;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.18;
  letter-spacing:-.02em;
  max-width:22ch;
}
.article-meta{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.7);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{color:var(--brand);font-size:12px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.3);}
.meta-chip{
  display:inline-flex;align-items:center;
  padding:3px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:12.5px;
}

/* ---------- article body ---------- */
.article-main{padding:clamp(48px,7vw,96px) 0 clamp(40px,6vw,72px);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:clamp(24px,4vw,56px);
}
.article-lead{
  font-size:18px;
  line-height:1.8;
  color:var(--text-2);
  padding-left:18px;
  border-left:3px solid var(--brand);
  margin-bottom:36px;
}
.article-body{font-size:16.5px;line-height:1.75;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);
  margin:2.2em 0 .8em;
  padding-bottom:.4em;
  border-bottom:1px solid var(--line);
}
.article-body h3{font-size:clamp(18px,2vw,22px);margin:1.8em 0 .6em;}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;}
.article-body p{margin:0 0 1.4em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em;}
.article-body ul li{list-style:none;position:relative;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--brand);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:.6em;padding-left:.2em;}
.article-body a{color:var(--brand-d);border-bottom:1px solid rgba(15,163,127,.35);}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:1.8em 0;
  padding:18px 24px;
  border-left:3px solid var(--brand);
  background:#FBFBF8;
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:1.8em 0;}
.article-body figure{margin:1.8em 0;}
.article-body figure img{margin:0;}
.article-body figcaption{
  margin-top:10px;font-size:13.5px;color:var(--text-3);text-align:center;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body code{
  font-family:var(--mono);font-size:.92em;
  background:#F1F0EA;border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  font-family:var(--mono);font-size:14px;
  background:var(--ink);color:#E9E8E3;
  padding:20px 22px;border-radius:var(--r-card);
  overflow-x:auto;margin:1.8em 0;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:#F4F3EE;font-weight:700;}
.article-body tr:nth-child(even) td{background:#FBFBF8;}

.empty-state{
  text-align:center;
  padding:56px 24px;
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
}
.empty-state i{font-size:26px;color:var(--text-3);}
.empty-state .empty-title{font-size:19px;font-weight:700;color:var(--ink);}
.empty-state .empty-desc{color:var(--text-2);font-size:15px;}
.empty-state a.back-link{
  margin-top:6px;color:var(--brand-d);font-weight:600;
  border-bottom:1px solid rgba(15,163,127,.4);
}
.empty-state a.back-link:hover{color:var(--brand);border-bottom-color:var(--brand);}

.back-row{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:36px;padding-top:28px;
  border-top:1px solid var(--line);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  cursor:pointer;border:1px solid transparent;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(15,163,127,.24);}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(11,125,98,.22);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px);}
.btn-dark-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.btn-dark-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#e85c28;color:#fff;transform:translateY(-2px);}
.link-text{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--brand-d);
  border-bottom:1px solid rgba(15,163,127,.4);
  padding-bottom:2px;
}
.link-text:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- section shells ---------- */
.section{padding:clamp(56px,7vw,96px) 0;}
.section-tight{padding:clamp(44px,5vw,72px) 0;}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand-d);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);}
.section-head h2{font-size:clamp(24px,3vw,36px);}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}

/* ---------- related ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDECE6;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:999px;
  border:1px solid rgba(15,163,127,.36);
  color:var(--brand-d);font-size:12.5px;font-weight:600;
  background:rgba(15,163,127,.06);
}
.post-body h3{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--brand-d);}
.post-body p{
  font-size:14.5px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.post-foot .read{color:var(--brand-d);font-weight:600;}

/* ---------- faq ---------- */
.faq-list{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 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink);
  transition:color .16s var(--ease);
}
.faq-q:hover{color:var(--brand-d);}
.faq-q .icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand-d);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg);border-color:var(--brand);}
.faq-a{
  max-width:720px;color:var(--text-2);font-size:16px;line-height:1.75;
  max-height:0;overflow:hidden;
  transition:max-height .18s var(--ease),padding .18s var(--ease);
}
.faq-item.is-open .faq-a{max-height:420px;padding-bottom:24px;}

/* ---------- subscribe cta ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  padding:clamp(56px,7vw,90px) 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-30%;right:-8%;width:46%;height:150%;
  background:radial-gradient(circle at 60% 40%,rgba(15,163,127,.16),transparent 62%);
  pointer-events:none;
}
.cta-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:clamp(32px,5vw,64px);align-items:center;
}
.cta-grid h2{color:#fff;font-size:clamp(24px,3vw,34px);}
.cta-grid .cta-desc{color:rgba(255,255,255,.72);margin-top:16px;font-size:16px;max-width:46ch;}
.cta-points{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.cta-point{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  font-size:13.5px;color:rgba(255,255,255,.86);
}
.cta-point i{color:var(--brand);font-size:12px;}
.form-card{
  background:var(--card);
  border-radius:var(--r-card);
  padding:clamp(22px,3vw,32px);
  box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;}
.field label{font-size:13px;color:var(--text-2);font-weight:600;}
.field .req{color:var(--accent);margin-left:3px;}
.field input,.field textarea{
  height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#FCFBF8;color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.6;}
.field input:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,163,127,.16);
}
.field .hint{font-size:12.5px;color:var(--text-3);}
.form-submit{width:100%;margin-top:4px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:clamp(48px,6vw,72px) 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:clamp(24px,3vw,40px);
  padding-bottom:44px;
}
.footer-col h4{
  color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:0;
}
.footer-col a{
  display:block;padding:6px 0;font-size:14.5px;color:rgba(255,255,255,.66);
}
.footer-col a:hover{color:var(--brand);}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;letter-spacing:-.02em;
}
.footer-brand::before{
  content:"";width:11px;height:11px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 0 4px rgba(15,163,127,.16);
}
.footer-slogan{margin-top:14px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.56);max-width:30ch;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

@media (max-width:63.94em){
  .article-layout{gap:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
}
@media (max-width:40em){
  body{font-size:16px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-card{padding:20px 16px;}
  .article-lead{font-size:16.5px;padding-left:14px;}
  .article-banner h1{font-size:30px;}
  .breadcrumb .current{max-width:16ch;}
  .faq-q{font-size:16.5px;padding:18px 0;}
  .btn{width:100%;}
  .back-row .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
}

/* roulang page: category1 */
:root{
  --ink:#0E1113;
  --brand:#0FA37F;
  --brand-d:#0B7D62;
  --accent:#FF6B35;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --line:#E5E3DC;
  --text:#1A1D1F;
  --text-2:#5C6268;
  --text-3:#8A9096;
  --ok:#1F9D6B;
  --warn:#D9822B;
  --err:#C8452F;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(14,17,19,.05);
  --sh-2:0 12px 28px rgba(14,17,19,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-card)}
a{color:var(--brand-d);text-decoration:none;transition:color 180ms var(--ease),border-color 180ms var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.02em;margin:0;line-height:1.28;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:920px}
.section{padding:96px 0;border-top:1px solid var(--line)}
.section:first-of-type{border-top:0}
.section-ink{background:var(--ink);color:#EDEFEE;border-top-color:transparent}
.section-ink h2,.section-ink h3,.section-ink h4{color:#fff}
.section-ink .sec-sub{color:#A7B0AE}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.sec-kicker::before{content:"";width:22px;height:1px;background:var(--brand);display:block}
h2{font-size:38px}
.sec-sub{margin-top:14px;color:var(--text-2);font-size:16.5px;max-width:720px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.86);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:background 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-header.is-scrolled{
  background:var(--card);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(14,17,19,.05);
}
.nav-wrap{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  height:76px;transition:height 200ms var(--ease);gap:24px;
}
.site-header.is-scrolled .nav-wrap{height:64px}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;flex:1;min-width:0}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 160ms var(--ease);
}
.nav-link:hover{color:var(--brand-d)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:background 180ms var(--ease),transform 180ms var(--ease);
}
.nav-cta:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px)}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--text);white-space:nowrap;
}
.brand:hover{color:var(--brand-d)}
.brand .brand-dot{display:inline-block;width:7px;height:7px;border-radius:2px;background:var(--accent);margin-left:6px;vertical-align:middle}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);cursor:pointer;padding:0;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--text);margin:2px 0;border-radius:2px;transition:transform 180ms var(--ease),opacity 180ms var(--ease)}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:var(--card);
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 24px;color:var(--text);font-size:16px;
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:600}
.mobile-panel a i{color:var(--text-3);font-size:13px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;background:var(--ink);color:#E9EDEB;overflow:hidden;
  padding:56px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 320px at 78% 18%,rgba(15,163,127,.20),transparent 70%),
             linear-gradient(180deg,rgba(14,17,19,.72),rgba(14,17,19,.94));
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:#9AA5A2;margin-bottom:22px}
.crumbs a{color:#C8D2CF}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#55605E}
.crumbs .now{color:#fff;font-weight:500}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:end}
.hero-copy h1{font-size:48px;color:#fff;margin-bottom:18px}
.hero-copy .hero-lead{color:#B9C3C0;font-size:16.5px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#E9EDEB;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{color:#fff;border-color:var(--brand);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--text);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-d)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-d);font-weight:600;font-size:15px;
  border-bottom:1px solid currentColor;padding-bottom:2px;
}
.btn-link:hover{color:var(--brand)}
.hero-side{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;display:grid;gap:18px;
}
.hero-side .side-item{display:flex;align-items:baseline;justify-content:space-between;gap:16px;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:14px}
.hero-side .side-item:last-child{border-bottom:0;padding-bottom:0}
.hero-side .side-num{font-family:var(--font-mono);font-size:26px;font-weight:600;color:#fff;letter-spacing:-.01em}
.hero-side .side-num em{font-style:normal;color:var(--accent)}
.hero-side .side-label{font-size:13.5px;color:#9AA5A2;text-align:right}

/* ---------- launch list ---------- */
.launch-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.launch-row{
  display:grid;grid-template-columns:130px 156px minmax(0,1fr) auto;
  gap:26px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.launch-row:hover{background:rgba(255,255,255,.72)}
.row-time{display:flex;flex-direction:column;gap:4px}
.row-time .t-day{font-family:var(--font-mono);font-size:17px;font-weight:600;color:var(--text)}
.row-time .t-clock{font-family:var(--font-mono);font-size:13px;color:var(--text-3)}
.row-thumb img{width:156px;height:92px;object-fit:cover;border:1px solid var(--line);transition:transform 200ms var(--ease)}
.launch-row:hover .row-thumb img{transform:scale(1.03)}
.row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--brand-d);border:1px solid rgba(15,163,127,.35);background:rgba(15,163,127,.06);
}
.badge-ghost{color:var(--text-2);border-color:var(--line);background:transparent}
.badge-warn{color:var(--warn);border-color:rgba(217,130,43,.35);background:rgba(217,130,43,.07)}
.badge-accent{color:var(--accent);border-color:rgba(255,107,53,.35);background:rgba(255,107,53,.07)}
.row-body h3{font-size:20px;margin-bottom:8px}
.launch-row:hover .row-body h3{color:var(--brand-d)}
.row-body p{color:var(--text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-2);
  white-space:nowrap;padding:10px 14px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card);
  transition:border-color 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease);
}
.row-link:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}

/* ---------- numbered rows ---------- */
.step-rows{border-top:1px solid var(--line)}
.step-row{
  display:grid;grid-template-columns:78px minmax(0,6fr) minmax(0,3fr);
  gap:26px;align-items:center;padding:26px 20px;border-bottom:1px solid var(--line);
  transition:background 200ms var(--ease);
}
.step-row:hover{background:var(--card)}
.step-row:hover .step-no{color:var(--brand)}
.step-no{font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--text-3);transition:color 200ms var(--ease)}
.step-main h3{font-size:19px;margin-bottom:8px}
.step-main p{color:var(--text-2);font-size:15px}
.step-meta{text-align:right;font-family:var(--font-mono);font-size:14px;color:var(--text-2)}
.step-meta span{display:block;font-family:var(--font-cn);font-size:12.5px;color:var(--text-3);margin-top:4px}

/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.metric-cell{background:var(--card);padding:30px 26px}
.metric-cell .m-num{font-family:var(--font-mono);font-size:40px;font-weight:600;letter-spacing:-.02em;color:var(--text)}
.metric-cell .m-num em{font-style:normal;color:var(--brand);font-size:19px;margin-left:4px}
.metric-cell .m-label{margin-top:10px;font-size:14px;color:var(--text-2)}
.metric-cell .m-note{margin-top:12px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:10px}

/* ---------- cross band ---------- */
.cross-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 30px;box-shadow:var(--sh-1);
}
.cross-band h3{font-size:19px;margin-bottom:6px}
.cross-band p{color:var(--text-2);font-size:15px}
.cross-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- form ---------- */
.subscribe-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.form-card{background:var(--card);border-radius:var(--r-card);padding:34px;box-shadow:var(--sh-2);color:var(--text)}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;font-size:15px;font-family:inherit;color:var(--text);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-input);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,163,127,.14);
}
.field .hint{font-size:12.5px;color:var(--text-3);margin-top:8px}
.field .err-msg{font-size:13px;color:var(--err);margin-top:6px;display:none}
.field.has-error input{border-color:var(--err)}
.field.has-error .err-msg{display:block}
.form-actions{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-actions .btn{min-width:170px}
.form-note{font-size:13px;color:var(--text-3)}
.promise-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);color:#C7D0CE;font-size:15px}
.promise-list li:last-child{border-bottom:0}
.promise-list i{color:var(--brand);margin-top:5px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#B8C2C0;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:1px;background:rgba(255,255,255,.08);border-radius:var(--r-card);overflow:hidden}
.footer-col{background:var(--ink);padding:32px 26px}
.footer-brand{display:block;font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-slogan{font-size:14px;color:#8E9997;line-height:1.7}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;color:#B8C2C0;font-size:14.5px;padding:7px 0;transition:color 180ms var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:#7C8785;
}
.footer-bottom a{color:#B8C2C0}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity 240ms var(--ease),transform 240ms var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-copy h1{font-size:38px}
  .subscribe-wrap{grid-template-columns:1fr;gap:34px}
  .launch-row{grid-template-columns:110px 132px minmax(0,1fr);gap:20px}
  .row-thumb img{width:132px;height:82px}
  .row-link{grid-column:2 / -1;justify-self:start;margin-top:4px}
  .step-row{grid-template-columns:64px minmax(0,1fr);gap:18px}
  .step-meta{grid-column:2;text-align:left}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:72px 0}
  h2{font-size:26px}
  .hero-copy h1{font-size:30px}
  .page-hero{padding:38px 0 44px}
  .nav-left,.nav-right{display:none}
  .nav-burger{display:flex}
  .nav-wrap{height:64px}
  .site-header.is-scrolled .nav-wrap{height:58px}
  .launch-row{grid-template-columns:1fr;gap:14px;padding:20px 0}
  .row-time{flex-direction:row;gap:12px;align-items:baseline}
  .row-thumb img{width:100%;height:172px}
  .row-link{grid-column:1;justify-self:start}
  .step-row{padding:22px 6px}
  .metric-cell{padding:24px 20px}
  .metric-cell .m-num{font-size:32px}
  .cross-band{padding:22px 20px}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .metric-grid{grid-template-columns:1fr}
  .hero-side .side-item{flex-direction:column;align-items:flex-start;gap:6px}
  .hero-side .side-label{text-align:left}
  .form-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0E1113;
  --brand:#0FA37F;
  --brand-d:#0B7D62;
  --accent:#FF6B35;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --line:#E5E3DC;
  --text:#1A1D1F;
  --text-2:#5C6268;
  --text-3:#8A9096;
  --ok:#1F9D6B;
  --warn:#D9822B;
  --err:#C8452F;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,17,19,.05);
  --sh-2:0 12px 28px rgba(14,17,19,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --mono:ui-monospace,"JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25;}
p{margin:0;}
ol,ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-btn) 0;z-index:99;}
.skip-link:focus{left:0;}
.container{width:min(1240px,100% - 48px);margin-inline:auto;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.section{padding:var(--sec-pad) 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:76px;transition:height .24s var(--ease);}
.site-header.is-scrolled .nav-bar{height:64px;}
.nav-left{display:flex;align-items:center;gap:6px;}
.nav-right{display:flex;align-items:center;gap:12px;justify-content:flex-end;}
.nav-link{position:relative;display:inline-block;padding:8px 10px;font-size:15px;font-weight:500;color:var(--text);transition:color .16s var(--ease);white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left center;transition:transform .18s var(--ease);}
.nav-link:hover{color:var(--brand-d);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;font-size:19px;font-weight:700;letter-spacing:-.02em;padding:6px 8px;}
.brand-dot{width:12px;height:12px;border-radius:3px;background:var(--brand);box-shadow:0 0 0 4px rgba(15,163,127,.14);}
.brand-name{white-space:nowrap;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .18s var(--ease),transform .18s var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{background:var(--brand-d);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:var(--r-btn);justify-self:end;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
  transition:border-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg);}
.mobile-menu{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);}
.mobile-menu.is-open{display:block;}
.mobile-menu a{display:block;padding:14px 0;font-size:16px;border-bottom:1px solid var(--line);min-height:52px;}
.mobile-menu a.is-active{color:var(--brand);font-weight:600;}
.mobile-menu a.mobile-cta{color:var(--brand-d);font-weight:600;border-bottom:0;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(680px 420px at 82% 12%,rgba(15,163,127,.20),transparent 68%),
             linear-gradient(180deg,rgba(14,17,19,.92) 0%,rgba(14,17,19,.86) 55%,rgba(14,17,19,.96) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 64px;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:28px;}
.breadcrumb a{color:rgba(255,255,255,.78);border-bottom:1px solid rgba(255,255,255,.28);transition:color .16s var(--ease),border-color .16s var(--ease);}
.breadcrumb a:hover{color:var(--brand);border-color:var(--brand);}
.hero-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:56px;align-items:end;}
.hero-kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.14em;font-weight:600;
  color:var(--brand);border:1px solid rgba(15,163,127,.5);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:20px;
}
.hero h1{font-size:clamp(34px,4.4vw,58px);line-height:1.16;letter-spacing:-.03em;margin-bottom:18px;}
.hero-sub{font-size:17px;color:rgba(255,255,255,.76);max-width:32em;line-height:1.7;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(11,125,98,.28);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--text);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px);}
.hero-panel{
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.035);
  padding:6px 20px;
}
.panel-unit{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.10);}
.panel-unit:last-child{border-bottom:0;}
.panel-unit .num{font-family:var(--mono);font-size:27px;font-weight:600;color:#fff;letter-spacing:-.02em;}
.panel-unit .num em{font-style:normal;color:var(--accent);}
.panel-unit .unit{font-size:13px;color:rgba(255,255,255,.60);}
.ticker{background:#0B0E0F;border-top:1px solid rgba(255,255,255,.10);border-bottom:1px solid rgba(255,255,255,.10);}
.ticker-inner{display:flex;gap:36px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.ticker-inner::-webkit-scrollbar{display:none;}
.ticker-item{font-family:var(--mono);font-size:12.5px;color:rgba(255,255,255,.66);white-space:nowrap;letter-spacing:.02em;}
.ticker-item b{color:var(--brand);font-weight:600;}

/* ---------- 通用板块头 ---------- */
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:600;margin-bottom:14px;text-transform:uppercase;}
.section-head h2{font-size:clamp(26px,3vw,38px);margin-bottom:16px;}
.section-lead{color:var(--text-2);font-size:16.5px;max-width:44em;}

/* ---------- 时间线 ---------- */
.timeline{border-left:1px solid var(--line);margin-left:6px;}
.timeline-item{position:relative;padding:0 0 34px 30px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-node{position:absolute;left:-6px;top:9px;width:11px;height:11px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(15,163,127,.14);}
.timeline-top{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:6px;}
.timeline-top h3{font-size:20px;}
.timeline-top .mono{font-size:12.5px;color:var(--brand-d);border:1px solid rgba(15,163,127,.34);border-radius:var(--r-pill);padding:2px 10px;}
.timeline-body p{color:var(--text-2);max-width:56em;}

/* ---------- 卡片网格 ---------- */
.grid-x.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.card-grid>.cell{margin-bottom:32px;}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D5CC;}
.entry-cover{display:block;overflow:hidden;background:#EFEDE6;}
.entry-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .2s var(--ease);}
.entry-card:hover .entry-cover img{transform:scale(1.03);}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  align-self:flex-start;display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;color:var(--brand-d);
  border:1px solid rgba(15,163,127,.38);border-radius:var(--r-pill);
  padding:3px 11px;background:rgba(15,163,127,.06);
}
.badge.accent{color:#B8461E;border-color:rgba(255,107,53,.4);background:rgba(255,107,53,.08);}
.entry-title{font-size:21px;line-height:1.4;}
.entry-title a{transition:color .16s var(--ease);}
.entry-card:hover .entry-title a{color:var(--brand-d);}
.entry-desc{color:var(--text-2);font-size:15.5px;flex:1;}
.entry-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px;}
.entry-meta .mono{color:var(--text-2);}
.dot{width:4px;height:4px;border-radius:50%;background:#C9C6BD;display:inline-block;}

/* ---------- 步骤 / 领取流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 28px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D5CC;}
.step-no{display:block;font-family:var(--mono);font-size:13px;color:var(--brand);font-weight:600;letter-spacing:.1em;margin-bottom:16px;}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{color:var(--text-2);font-size:15px;}

/* ---------- 指标小结 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.metric{background:#fff;padding:28px 24px;}
.metric .m-num{font-family:var(--mono);font-size:34px;font-weight:600;letter-spacing:-.03em;color:var(--text);display:block;line-height:1.2;}
.metric .m-num em{font-style:normal;font-size:16px;color:var(--text-3);margin-left:4px;}
.metric .m-label{display:block;margin-top:8px;font-size:14px;color:var(--text-2);}
.metric .m-tag{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:12px;color:var(--brand-d);background:rgba(15,163,127,.08);border-radius:var(--r-pill);padding:2px 10px;}

/* ---------- FAQ ---------- */
.faq{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:22px 0;font-size:18px;font-weight:600;transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-d);}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;margin-top:5px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .18s var(--ease),opacity .18s var(--ease);}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{padding:0 0 24px;max-width:720px;color:var(--text-2);font-size:16px;}

/* ---------- 交叉引导 ---------- */
.cross-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-card);padding:32px 34px;box-shadow:var(--sh-1);
}
.cross-bar h2{font-size:24px;margin-bottom:8px;}
.cross-bar p{color:var(--text-2);font-size:15.5px;max-width:40em;}
.cross-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 订阅表单 ---------- */
.subscribe{background:var(--ink);color:#fff;}
.subscribe-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
.subscribe-copy h2{font-size:clamp(26px,3vw,36px);margin-bottom:18px;}
.subscribe-copy p{color:rgba(255,255,255,.72);max-width:34em;}
.subscribe-list{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.subscribe-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgba(255,255,255,.82);}
.subscribe-list i{color:var(--brand);margin-top:5px;font-size:14px;}
.form-card{background:var(--card);border-radius:var(--r-card);padding:34px;color:var(--text);box-shadow:var(--sh-2);}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;font-weight:500;}
.req{color:var(--accent);margin-left:3px;}
.form-row input,.form-row select{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;padding:0 14px;font-size:15.5px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-row input::placeholder{color:#A9AEB2;}
.form-row input:focus,.form-row select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,163,127,.16);}
.form-hint{font-size:13px;color:var(--text-3);margin-top:8px;}
.form-submit{width:100%;margin-top:6px;}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3);}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--ok);display:none;}
.form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.76);padding:72px 0 0;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-col{display:flex;flex-direction:column;gap:10px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.5);font-weight:600;margin-bottom:8px;text-transform:uppercase;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.76);transition:color .16s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-brand{font-size:19px;font-weight:700;color:#fff;letter-spacing:-.02em;}
.footer-slogan{font-size:13.5px;color:rgba(255,255,255,.58);max-width:24em;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72);border-bottom:1px solid rgba(255,255,255,.22);}
.footer-bottom a:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:63.94em){
  :root{--sec-pad:72px;}
  .nav-left,.nav-right{display:none;}
  .nav-bar{grid-template-columns:48px 1fr 48px;}
  .nav-toggle{display:flex;}
  .brand{font-size:17.5px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;align-items:start;}
  .hero-inner{padding:40px 0 52px;}
  .subscribe-grid{grid-template-columns:1fr;gap:40px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .stagger{margin-top:0 !important;}
}
@media (max-width:40em){
  :root{--sec-pad:56px;}
  body{font-size:16px;}
  .container{width:min(1240px,100% - 32px);}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cross-bar{padding:26px 22px;}
  .cross-actions .btn{width:100%;}
  .form-card{padding:24px 20px;}
  .panel-unit .num{font-size:23px;}
  .entry-body{padding:18px 18px 20px;}
}
@media (min-width:64em){
  .stagger{margin-top:52px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}