/* roulang page: index */
:root{
  --brand:#12C46A;
  --brand-deep:#0A8F4D;
  --brand-soft:#E6FBF0;
  --accent:#FF7A2F;
  --accent-2:#FFD34D;
  --bg-dark:#0C1512;
  --bg-dark-2:#132019;
  --bg-light:#F6F9F7;
  --surface:#FFFFFF;
  --text-dark:#E8F3EC;
  --text-dark-sub:#9FB8AC;
  --text:#12211A;
  --text-sub:#4E675C;
  --line-dark:#1E3128;
  --line:#E2ECE6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(6,26,18,.18);
  --sh-2:0 18px 48px rgba(6,26,18,.28);
  --glow:0 0 0 1px rgba(18,196,106,.35),0 8px 28px rgba(18,196,106,.35);
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,"Courier New",monospace;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg-light);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:.005em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:var(--sec) 0;}
.section--dark{background:var(--bg-dark);color:var(--text-dark);}
.section--panel{background:var(--bg-light);}
.section--white{background:var(--surface);}
.section-head{max-width:780px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-deep);text-transform:uppercase;
  background:var(--brand-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.section--dark .eyebrow{background:rgba(18,196,106,.14);color:var(--brand);}
.section-title{font-size:clamp(24px,3.2vw,36px);}
.section-sub{margin-top:14px;color:var(--text-sub);font-size:16px;}
.section--dark .section-sub{color:var(--text-dark-sub);}
.divider-runway{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(18,196,106,.55) 18%,rgba(18,196,106,.15) 60%,transparent);
}

/* ===== 悬浮胶囊导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 20px;transition:top .3s ease;}
.site-header.is-stuck{top:10px;}
.nav-pill{
  max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 16px;border-radius:var(--r-pill);
  background:rgba(12,21,18,.62);
  border:1px solid rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 10px 30px rgba(6,26,18,.22);
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
}
.site-header.is-stuck .nav-pill{background:rgba(12,21,18,.88);box-shadow:var(--sh-1);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text-dark);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  color:#04140C;font-weight:800;font-size:19px;
  box-shadow:0 6px 18px rgba(18,196,106,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-dark-sub);letter-spacing:.06em;}
.brand-short{display:none;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:#CBDCD2;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:3px;width:0;
  background:var(--brand);border-radius:3px;transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active{color:#fff;background:rgba(18,196,106,.14);}
.nav-link.is-active::after{width:22px;}
.nav-cta{
  margin-left:8px;flex-shrink:0;
  padding:10px 20px;border-radius:var(--r-pill);
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04140C;font-weight:800;font-size:14px;
  box-shadow:0 6px 18px rgba(18,196,106,.3);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.06);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  color:var(--text-dark);font-size:18px;
  border:1px solid rgba(255,255,255,.16);
  align-items:center;justify-content:center;
}
.mobile-panel{
  position:fixed;inset:0;z-index:90;
  background:rgba(12,21,18,.97);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  padding:96px 24px 40px;
  display:none;flex-direction:column;gap:8px;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel .m-link{
  color:var(--text-dark);font-size:18px;font-weight:700;
  padding:16px 6px;border-bottom:1px solid var(--line-dark);
}
.mobile-panel .m-link.is-active{color:var(--brand);}
.mobile-panel .m-cta{
  margin-top:22px;text-align:center;padding:15px;border-radius:var(--r-pill);
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04140C;font-weight:800;
}
.mobile-close{position:absolute;top:22px;right:24px;color:var(--text-dark);font-size:22px;}

/* ===== Hero ===== */
.hero{position:relative;padding:168px 0 96px;background:var(--bg-dark);color:var(--text-dark);overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(12,21,18,.86) 0%,rgba(12,21,18,.92) 55%,rgba(12,21,18,.98) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:auto 0 0 0;height:180px;
  background:linear-gradient(180deg,transparent,var(--bg-dark));
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:var(--r-pill);font-size:13px;font-weight:700;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#D7E7DD;
}
.chip--accent{background:rgba(255,122,47,.16);border-color:rgba(255,122,47,.4);color:#FFC9A6;}
.chip--brand{background:rgba(18,196,106,.16);border-color:rgba(18,196,106,.4);color:#8FF3BE;}
.hero h1{font-size:clamp(30px,5vw,52px);letter-spacing:-.01em;}
.hero h1 span{color:var(--brand);}
.hero-lead{margin-top:20px;max-width:620px;color:#C6D8CD;font-size:17px;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
}
.btn-primary{background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#04140C;box-shadow:0 8px 24px rgba(18,196,106,.3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-dark);border-color:rgba(255,255,255,.24);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:#fff;color:var(--text);border-color:var(--line);box-shadow:var(--sh-1);}
.btn-outline-light:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.hero-note{margin-top:18px;font-size:13px;color:var(--text-dark-sub);display:flex;align-items:center;gap:8px;}
.hero-note i{color:var(--accent-2);}
.hero-stats{display:grid;gap:14px;}
.stat-card{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:22px 24px;
  transition:transform .3s ease,border-color .3s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(18,196,106,.45);}
.stat-num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
.stat-num small{font-size:15px;color:var(--text-dark-sub);margin-left:4px;font-weight:500;}
.stat-label{margin-top:6px;font-size:14px;color:#C6D8CD;}

/* ===== 优惠阶梯 ===== */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:end;}
.ladder-step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 22px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.ladder-step:hover{transform:translateY(-6px);box-shadow:var(--sh-2);}
.ladder-step:nth-child(1){min-height:198px;}
.ladder-step:nth-child(2){min-height:230px;}
.ladder-step:nth-child(3){min-height:262px;}
.ladder-step:nth-child(4){min-height:294px;border-color:rgba(18,196,106,.5);box-shadow:var(--glow);}
.ladder-step::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;border-radius:var(--r-lg) 0 0 var(--r-lg);
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));opacity:.25;
}
.ladder-step:nth-child(3)::before,.ladder-step:nth-child(4)::before{opacity:.85;}
.step-num{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-deep);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:4px 12px;align-self:flex-start;
}
.ladder-step h3{font-size:19px;}
.ladder-step p{font-size:14px;color:var(--text-sub);line-height:1.8;}
.ladder-tag{margin-top:auto;font-size:13px;font-weight:700;color:var(--accent);display:flex;align-items:center;gap:6px;}
.ladder-step:nth-child(4) .step-num{background:rgba(255,122,47,.14);color:#C2521A;}

/* ===== 套餐对比 ===== */
.compare{
  border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-head,.compare-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;align-items:center;}
.compare-head{background:var(--bg-dark);color:var(--text-dark);}
.compare-head > div{padding:20px 22px;font-weight:800;font-size:15px;}
.compare-head > div:not(:first-child){text-align:center;}
.compare-head .is-hot{color:var(--brand);}
.compare-row{border-top:1px solid var(--line);}
.compare-row:nth-child(odd){background:#FBFDFC;}
.compare-row > div{padding:18px 22px;font-size:15px;}
.compare-row .row-label{color:var(--text-sub);font-weight:600;}
.compare-row .cell{text-align:center;font-weight:700;}
.cell .yes{color:var(--brand-deep);}
.cell .no{color:#B4C4BC;}
.cell .num{font-family:var(--mono);color:var(--text);}
.compare-note{margin-top:16px;font-size:13px;color:var(--text-sub);display:flex;gap:8px;align-items:flex-start;}

/* ===== 限时入口扫光条 ===== */
.flash{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,#101E17,#0A1511 60%,#132019);
  border:1px solid rgba(255,211,77,.28);
  padding:38px 34px;color:var(--text-dark);
}
.flash::after{
  content:"";position:absolute;top:0;bottom:0;width:34%;
  background:linear-gradient(100deg,transparent,rgba(255,211,77,.18),transparent);
  animation:sweep 3.6s ease-in-out infinite;
}
@keyframes sweep{0%{left:-40%;}60%{left:120%;}100%{left:120%;}}
.flash-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr auto;gap:32px;align-items:center;}
.flash h2{font-size:clamp(22px,2.6vw,30px);}
.flash p{margin-top:12px;color:var(--text-dark-sub);font-size:15px;max-width:560px;}
.flash-rules{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.flash-rules span{
  font-size:13px;font-weight:700;color:#FFD9B8;
  background:rgba(255,122,47,.14);border:1px solid rgba(255,122,47,.3);
  border-radius:var(--r-pill);padding:6px 14px;
}
.flash-side{text-align:center;}
.countdown{display:flex;gap:8px;justify-content:center;margin-bottom:16px;}
.countdown div{
  min-width:64px;background:rgba(255,211,77,.1);border:1px solid rgba(255,211,77,.28);
  border-radius:var(--r-md);padding:10px 8px;
}
.countdown strong{display:block;font-family:var(--mono);font-size:24px;color:var(--accent-2);letter-spacing:.06em;}
.countdown em{font-style:normal;font-size:11px;color:var(--text-dark-sub);letter-spacing:.1em;}
.btn-accent{background:linear-gradient(140deg,var(--accent),#E85F13);color:#1C0C02;box-shadow:0 8px 24px rgba(255,122,47,.32);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,47,.4),0 12px 30px rgba(255,122,47,.4);filter:brightness(1.05);}

/* ===== 最新信息 ===== */
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.filter-tabs button,.filter-tabs a{
  padding:9px 18px;border-radius:var(--r-pill);font-size:13px;font-weight:700;
  background:var(--surface);border:1px solid var(--line);color:var(--text-sub);
  transition:all .25s ease;
}
.filter-tabs button:hover,.filter-tabs a:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.filter-tabs .is-on{background:var(--bg-dark);border-color:var(--bg-dark);color:#fff;}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.4);}
.news-card.is-featured{grid-column:span 2;}
.news-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-dark-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
}
.news-body h3{font-size:18px;line-height:1.5;}
.news-card:hover h3{color:var(--brand-deep);}
.news-body p{font-size:14px;color:var(--text-sub);line-height:1.85;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#7A8F85;border-top:1px solid var(--line);padding-top:14px;}
.news-meta .more{font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-meta .more{gap:10px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);color:var(--text-sub);
}
.empty-state i{font-size:30px;color:var(--brand);display:block;margin-bottom:14px;}

/* ===== 为什么选择 ===== */
.why-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.why-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.why-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.why-media .float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(12,21,18,.86);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);
  padding:16px 18px;color:var(--text-dark);font-size:14px;
}
.why-media .float-card strong{display:block;font-family:var(--mono);color:var(--brand);font-size:20px;margin-bottom:4px;}
.why-list{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.why-item{padding-left:16px;border-left:2px solid var(--line);transition:border-color .28s ease,transform .28s ease;}
.why-item:nth-child(2){margin-top:26px;}
.why-item:nth-child(3){margin-top:-6px;}
.why-item:nth-child(4){margin-top:20px;}
.why-item:hover{border-color:var(--brand);transform:translateX(4px);}
.why-item i{color:var(--brand-deep);font-size:18px;margin-bottom:10px;display:block;}
.why-item h3{font-size:17px;margin-bottom:8px;}
.why-item p{font-size:14px;color:var(--text-sub);line-height:1.8;}

/* ===== 使用流程 ===== */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;}
.flow::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(18,196,106,.1),rgba(18,196,106,.5),rgba(18,196,106,.1));
}
.flow-item{position:relative;text-align:left;padding-top:0;}
.flow-dot{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:var(--bg-dark);color:var(--brand);font-family:var(--mono);font-weight:700;
  box-shadow:var(--sh-1);margin-bottom:16px;position:relative;z-index:2;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.flow-item:hover .flow-dot{transform:translateY(-4px);background:var(--brand);color:#04140C;}
.flow-item h3{font-size:16px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--text-sub);line-height:1.8;}

/* ===== FAQ ===== */
.faq{display:grid;gap:12px;max-width:900px;}
.faq details{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq details[open]{border-color:rgba(18,196,106,.45);box-shadow:var(--sh-1);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-weight:700;font-size:16px;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .idx{font-family:var(--mono);color:var(--brand);font-size:14px;font-weight:700;min-width:22px;}
.faq summary .sign{margin-left:auto;color:var(--brand-deep);font-weight:800;font-size:18px;transition:transform .25s ease;}
.faq details[open] summary{color:var(--brand-deep);}
.faq details[open] summary .sign{transform:rotate(45deg);}
.faq .answer{padding:0 22px 20px 58px;font-size:15px;color:var(--text-sub);line-height:1.9;}

/* ===== CTA + 表单 ===== */
.cta-band{
  border-radius:var(--r-lg);padding:44px 38px;
  background:linear-gradient(125deg,var(--bg-dark) 0%,#122A1E 55%,var(--bg-dark) 100%);
  color:var(--text-dark);display:grid;grid-template-columns:1.25fr auto;gap:32px;align-items:center;
  border:1px solid rgba(18,196,106,.22);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);}
.cta-band p{margin-top:12px;color:var(--text-dark-sub);font-size:15px;max-width:600px;}
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;}
.field input,.field textarea,.field select{
  width:100%;padding:13px 16px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#FBFDFC;color:var(--text);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 4px rgba(18,196,106,.15);
}
.field textarea{min-height:112px;resize:vertical;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-tip{font-size:13px;color:var(--text-sub);margin-top:14px;line-height:1.7;}
.form-msg{margin-top:14px;font-size:14px;font-weight:700;color:var(--brand-deep);display:none;}
.form-msg.is-show{display:block;}
.contact-points{display:grid;gap:18px;}
.point{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-md);padding:20px 22px;transition:transform .28s ease,box-shadow .28s ease;
}
.point:hover{transform:translateX(4px);box-shadow:var(--sh-1);}
.point h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.point h3 i{color:var(--brand-deep);}
.point p{font-size:14px;color:var(--text-sub);line-height:1.85;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-dark-2);color:var(--text-dark-sub);padding:70px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{line-height:1.9;max-width:340px;}
.footer-brand .risk{margin-top:14px;font-size:12.5px;color:#7E938A;line-height:1.8;}
.footer-col h3{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px;font-weight:700;}
.footer-col a{display:block;padding:6px 0;color:var(--text-dark-sub);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7E938A;
}
.footer-bottom a{color:#9FB8AC;}
.footer-bottom a:hover{color:var(--brand);}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  :root{--sec:72px;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .hero{padding:140px 0 80px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .ladder{grid-template-columns:1fr 1fr;}
  .ladder-step{min-height:auto !important;}
  .flash-inner{grid-template-columns:1fr;gap:24px;}
  .flash-side{text-align:left;}
  .countdown{justify-content:flex-start;}
  .why-wrap{grid-template-columns:1fr;gap:36px;}
  .flow{grid-template-columns:1fr 1fr;}
  .flow::before{display:none;}
  .cta-band{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:767px){
  :root{--sec:56px;}
  body{font-size:15.5px;}
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .brand-text em{font-size:10.5px;}
  .section-head{margin-bottom:30px;}
  .ladder{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-card.is-featured{grid-column:span 1;}
  .why-list{grid-template-columns:1fr;gap:20px;}
  .why-item:nth-child(n){margin-top:0;}
  .flow{grid-template-columns:1fr;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;padding:16px 0;}
  .compare-row > div{padding:8px 20px;}
  .compare-row .row-label{font-size:13px;letter-spacing:.06em;color:#8A9C94;text-transform:uppercase;}
  .compare-row .cell{text-align:left;display:flex;gap:10px;align-items:center;}
  .compare-row .cell::before{
    content:attr(data-plan);font-size:12px;font-weight:700;color:var(--brand-deep);
    background:var(--brand-soft);border-radius:var(--r-pill);padding:2px 10px;flex-shrink:0;
  }
  .field-row{grid-template-columns:1fr;}
  .cta-band,.flash,.form-card{padding:26px 20px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .countdown div{min-width:56px;}
  .countdown strong{font-size:20px;}
}

/* roulang page: category1 */
:root{
  --brand:#12C46A;
  --brand-deep:#0A8F4D;
  --brand-soft:#E6FBF0;
  --accent:#FF7A2F;
  --accent-2:#FFD34D;
  --bg-dark:#0C1512;
  --bg-dark-2:#132019;
  --bg-light:#F6F9F7;
  --surface:#FFFFFF;
  --text-dark:#E8F3EC;
  --text-dark-sub:#9FB8AC;
  --text:#12211A;
  --text-sub:#4E675C;
  --line:#E2ECE6;
  --line-dark:#1E3128;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(6,26,18,.18);
  --sh-2:0 18px 48px rgba(6,26,18,.28);
  --glow:0 0 0 1px rgba(18,196,106,.35),0 8px 28px rgba(18,196,106,.35);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-md);}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;color:var(--text);letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--bg-dark);color:var(--text-dark);}
.section--dark h2,.section--dark h3{color:#fff;}
.section--soft{background:var(--brand-soft);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3.2vw,36px);}
.section-head p{margin-top:14px;color:var(--text-sub);font-size:16px;}
.section--dark .section-head p{color:var(--text-dark-sub);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-deep);background:var(--brand-soft);
  border:1px solid rgba(18,196,106,.28);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
.section--dark .eyebrow{background:rgba(18,196,106,.12);color:var(--brand);border-color:rgba(18,196,106,.35);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#17d476,var(--brand));
  color:#04170e;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);background:linear-gradient(180deg,#22e084,#13cd70);box-shadow:0 0 0 1px rgba(18,196,106,.45),0 12px 34px rgba(18,196,106,.45);}
.btn-ghost{
  background:rgba(255,255,255,.06);color:var(--text-dark);
  border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand);}
.btn-line{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn-line:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand-deep);background:#fff;}
.btn-block{width:100%;}
@media(max-width:640px){.btn-block-sm{width:100%;}}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  padding:14px 0;
  transition:padding .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{padding:8px 0;background:rgba(12,21,18,.55);backdrop-filter:blur(10px);}
.nav-pill{
  display:flex;align-items:center;gap:16px;
  max-width:1200px;margin:0 auto;padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(12,21,18,.74);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(14px);
  position:relative;
}
.site-header.is-scrolled .nav-pill{background:rgba(12,21,18,.9);}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;color:#04170e;
  background:linear-gradient(140deg,var(--brand),#7CF0B4);
  box-shadow:0 6px 18px rgba(18,196,106,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#fff;font-size:15px;font-weight:800;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-dark-sub);letter-spacing:.04em;}
.brand-short{display:none;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-dark-sub);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-3px;width:22px;height:3px;border-radius:3px;background:var(--brand);
}
.nav-cta{
  flex:0 0 auto;padding:11px 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;color:#04170e;
  background:linear-gradient(180deg,#17d476,var(--brand));
  box-shadow:var(--glow);
}
.nav-cta:hover{transform:translateY(-2px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  color:#fff;font-size:17px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
@media(max-width:1024px){
  .nav-links{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    padding:14px;border-radius:var(--r-lg);
    background:rgba(12,21,18,.97);
    border:1px solid rgba(255,255,255,.12);
    box-shadow:var(--sh-2);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{padding:13px 16px;font-size:15px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:rgba(18,196,106,.15);color:var(--brand);}
  .nav-toggle{display:flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-cta{display:none;}
}
@media(max-width:640px){
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .brand-text em{font-size:10px;}
}

/* ===== Hero ===== */
.hero{
  position:relative;margin-top:-84px;padding:190px 0 96px;
  background:
    linear-gradient(180deg,rgba(12,21,18,.94) 0%,rgba(12,21,18,.86) 45%,rgba(12,21,18,.94) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:var(--text-dark);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,196,106,.6),transparent);
}
.hero-inner{
  display:grid;grid-template-columns:1.35fr .85fr;gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(30px,5vw,52px);color:#fff;letter-spacing:0;
}
.hero-sub{
  margin-top:22px;font-size:17px;color:var(--text-dark-sub);max-width:620px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-note{
  margin-top:20px;font-size:13px;color:var(--text-dark-sub);
  display:flex;align-items:center;gap:8px;
}
.hero-note i{color:var(--accent-2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.05em;
}
.badge-soft{background:rgba(18,196,106,.16);color:var(--brand);border:1px solid rgba(18,196,106,.35);}
.badge-warm{background:rgba(255,122,47,.16);color:var(--accent);border:1px solid rgba(255,122,47,.35);}
.badge-light{background:var(--brand-soft);color:var(--brand-deep);border:1px solid rgba(18,196,106,.25);}
.hero-card{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-2);
}
.hero-card h2{font-size:16px;color:#fff;margin-bottom:18px;display:flex;align-items:center;gap:9px;}
.hero-card h2 i{color:var(--brand);}
.hero-card li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.16);
  font-size:14px;color:var(--text-dark-sub);
}
.hero-card li:last-child{border-bottom:0;padding-bottom:0;}
.hero-card strong{
  font-family:var(--mono);font-size:20px;color:var(--brand);letter-spacing:.02em;
}
@media(max-width:1024px){
  .hero{margin-top:-76px;padding:160px 0 80px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
}
@media(max-width:640px){
  .hero{padding:140px 0 64px;}
  .hero-actions .btn{width:100%;}
}

/* ===== 锚点导航 ===== */
.anchor-bar{
  background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:72px;z-index:80;
}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--text-sub);
  background:var(--bg-light);border:1px solid var(--line);
}
.anchor-link:hover{color:var(--brand-deep);border-color:var(--brand);background:var(--brand-soft);}
@media(max-width:640px){.anchor-bar{top:64px;}}

/* ===== 图文卡 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.media-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.4);}
.media-card figure{margin:0;position:relative;overflow:hidden;}
.media-card figure img{width:100%;height:196px;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.media-card:hover figure img{transform:scale(1.05);}
.media-tag{
  position:absolute;top:14px;left:14px;
  background:rgba(12,21,18,.78);color:var(--brand);
  border:1px solid rgba(18,196,106,.4);
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
  backdrop-filter:blur(8px);
}
.media-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.media-body h3{font-size:19px;}
.media-body p{color:var(--text-sub);font-size:15px;line-height:1.85;}
.media-list{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;flex-direction:column;gap:8px;}
.media-list li{font-size:14px;color:var(--text-sub);display:flex;gap:9px;align-items:flex-start;}
.media-list i{color:var(--brand);margin-top:6px;font-size:12px;}

/* ===== 要点清单 ===== */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 22px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.check-item:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--sh-1);}
.check-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:700;
  color:var(--brand-deep);background:var(--brand-soft);
  border:1px solid rgba(18,196,106,.3);
}
.check-item h3{font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--text-sub);line-height:1.8;}

/* ===== 数据条 ===== */
.stat-band{
  background:var(--bg-dark-2);
  border:1px solid var(--line-dark);
  border-radius:var(--r-lg);
  padding:34px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.stat-item{text-align:center;}
.stat-item strong{
  display:block;font-family:var(--mono);font-size:clamp(26px,3.4vw,38px);
  color:var(--brand);letter-spacing:.02em;line-height:1.2;
}
.stat-item span{display:block;margin-top:8px;font-size:13px;color:var(--text-dark-sub);}

/* ===== 步骤流程 ===== */
.step-list{display:flex;flex-direction:column;gap:0;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0;padding-bottom:0;}
.step:first-child{padding-top:0;}
.step-num{
  width:52px;height:52px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:18px;font-weight:700;
  color:#04170e;background:linear-gradient(140deg,var(--brand),#7CF0B4);
  box-shadow:0 6px 18px rgba(18,196,106,.28);
}
.step h3{font-size:18px;margin-bottom:6px;}
.step p{color:var(--text-sub);font-size:15px;}
.step .meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--bg-light);border:1px solid var(--line);color:var(--text-sub);
}

/* ===== FAQ ===== */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:rgba(18,196,106,.45);box-shadow:var(--sh-1);}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand-deep);
  flex:0 0 auto;
}
.faq-q{flex:1;line-height:1.6;}
.faq-item summary i{
  flex:0 0 auto;color:var(--text-sub);font-size:13px;transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary{color:var(--brand-deep);}
.faq-item[open] summary i{transform:rotate(135deg);color:var(--brand);}
.faq-a{padding:0 22px 20px 58px;color:var(--text-sub);font-size:15px;line-height:1.9;}
@media(max-width:640px){.faq-a{padding-left:22px;}}

/* ===== CTA ===== */
.cta-band{
  background:linear-gradient(135deg,#0C1512 0%,#14301F 55%,#0C1512 100%);
  border-radius:var(--r-lg);
  border:1px solid rgba(18,196,106,.28);
  padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-60%;left:-10%;width:60%;height:220%;
  background:radial-gradient(circle,rgba(18,196,106,.28),transparent 62%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);position:relative;}
.cta-band p{color:var(--text-dark-sub);margin-top:10px;font-size:15px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;flex:0 0 auto;}
@media(max-width:900px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}

/* ===== 相关内容卡 ===== */
.rel-card{
  display:flex;gap:18px;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-1);border-color:var(--brand);}
.rel-card img{width:104px;height:78px;object-fit:cover;flex:0 0 auto;}
.rel-card h3{font-size:16px;margin-bottom:6px;}
.rel-card p{font-size:13px;color:var(--text-sub);line-height:1.7;}

/* ===== 表单 ===== */
.form-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:34px;box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:13px;font-weight:700;color:var(--text);}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--bg-light);
  font-size:15px;font-family:inherit;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,196,106,.16);
}
.form-hint{font-size:12px;color:var(--text-sub);}
@media(max-width:768px){.form-row{grid-template-columns:1fr;}}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-dark-2);color:var(--text-dark-sub);padding:76px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:18px;max-width:340px;}
.footer-brand .risk{font-size:12px;color:#7E9689;margin-top:12px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.03em;}
.footer-col a{display:block;font-size:14px;padding:7px 0;color:var(--text-dark-sub);}
.footer-col a:hover{color:var(--brand);transform:translateX(3px);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom a:hover{color:var(--brand);}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ===== 响应式栅格 ===== */
@media(max-width:1024px){
  .section{padding:72px 0;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .stat-band{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .check-grid{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
}
@media(max-width:640px){
  .section{padding:56px 0;}
  .grid-3{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;padding:26px 20px;}
  .step{grid-template-columns:1fr;gap:14px;}
  .rel-card{flex-direction:column;align-items:flex-start;}
  .rel-card img{width:100%;height:150px;}
  .form-panel{padding:24px 20px;}
}

/* roulang page: article */
:root{
  --brand:#12C46A;
  --brand-deep:#0A8F4D;
  --brand-soft:#E6FBF0;
  --accent:#FF7A2F;
  --accent-2:#FFD34D;
  --bg-dark:#0C1512;
  --bg-dark-2:#132019;
  --bg-light:#F6F9F7;
  --surface:#FFFFFF;
  --text-light:#E8F3EC;
  --text-light-sub:#9FB8AC;
  --text-dark:#12211A;
  --text-dark-sub:#4E675C;
  --line-dark:#1E3128;
  --line-light:#E2ECE6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(6,26,18,.18);
  --sh-2:0 18px 48px rgba(6,26,18,.28);
  --glow:0 0 0 1px rgba(18,196,106,.35),0 8px 28px rgba(18,196,106,.35);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec-1:96px;
  --sec-2:72px;
  --sec-3:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text-dark);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--sec-1) 0}
.section-tight{padding:var(--sec-2) 0}
.section-dark{background:var(--bg-dark);color:var(--text-light)}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:90;padding:0 20px}
.nav-pill{
  max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:14px;
  padding:10px 12px 10px 16px;border-radius:var(--r-pill);
  background:rgba(12,21,18,.72);
  border:1px solid rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 12px 32px rgba(6,26,18,.28);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .nav-pill{background:rgba(12,21,18,.9);box-shadow:0 16px 40px rgba(6,26,18,.4)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04170E;font-weight:800;font-size:18px;
  box-shadow:0 6px 18px rgba(18,196,106,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:800;color:#fff}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-light-sub);letter-spacing:.06em}
.brand-short{display:none}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;color:rgba(232,243,236,.78);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(18,196,106,.14)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:2px;width:18px;height:3px;border-radius:2px;background:var(--brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:var(--r-pill);font-size:14px;font-weight:800;
  color:#04170E;background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);transition:transform .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;color:#fff;font-size:17px;align-items:center;justify-content:center;background:rgba(255,255,255,.08)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:800;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04170E;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.08);color:var(--text-light);border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--line-light);color:var(--text-dark)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12.5px;font-weight:800;border:1px solid rgba(18,196,106,.28);
}
.badge-warm{background:#FFF1E6;color:#B34B10;border-color:rgba(255,122,47,.35)}

/* ---------- 文章头部 ---------- */
main{padding-top:112px}
.article-hero{padding:20px 0 0;background:
  radial-gradient(900px 320px at 12% -10%,rgba(18,196,106,.12),transparent 62%),
  var(--bg-light)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-dark-sub);margin-bottom:22px;
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb .current{color:var(--text-dark);font-weight:700}
.article-head{max-width:860px;margin:0 auto}
.article-head h1{font-size:clamp(28px,4.2vw,44px);margin:16px 0 18px;color:var(--text-dark)}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--text-dark-sub);font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand-deep)}
.article-cover{
  max-width:960px;margin:34px auto 0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid var(--line-light);background:#fff;
}
.article-cover img{width:100%;height:clamp(200px,32vw,420px);object-fit:cover}

/* ---------- 正文阅读区 ---------- */
.article-body{padding:52px 0 24px}
.prose{max-width:760px;margin:0 auto;font-size:17px;line-height:1.95;color:#22322B}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 20px}
.prose h2{position:relative;padding-left:16px;font-size:24px;margin:44px 0 18px;color:var(--text-dark)}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
}
.prose h3{font-size:19px;font-weight:800;margin:30px 0 12px;color:var(--text-dark)}
.prose h4{font-size:17px;margin:24px 0 10px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose ul li{list-style:disc;margin:8px 0}
.prose ol li{list-style:decimal;margin:8px 0}
.prose a{color:var(--brand-deep);border-bottom:1px solid rgba(10,143,77,.35);transition:color .2s ease,border-color .2s ease}
.prose a:hover{color:var(--brand);border-color:var(--brand)}
.prose img{border-radius:var(--r-md);box-shadow:var(--sh-1);margin:22px 0}
.prose blockquote{
  margin:24px 0;padding:16px 22px;border-left:4px solid var(--brand);
  background:var(--brand-soft);border-radius:0 var(--r-md) var(--r-md) 0;color:#1B3327;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose pre{
  font-family:var(--mono);background:var(--bg-dark);color:#B7F5D3;
  padding:16px 18px;border-radius:var(--r-md);overflow-x:auto;font-size:14px;margin:22px 0;
}
.prose code{font-family:var(--mono);font-size:.94em;background:var(--brand-soft);color:var(--brand-deep);padding:2px 6px;border-radius:6px}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;background:#fff;border-radius:var(--r-md);overflow:hidden}
.prose th,.prose td{border:1px solid var(--line-light);padding:11px 14px;text-align:left}
.prose th{background:var(--brand-soft);font-weight:800}
.prose hr{border:0;height:1px;background:var(--line-light);margin:32px 0}

.tag-list{max-width:760px;margin:38px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-label{font-size:13px;font-weight:800;color:var(--text-dark-sub)}
.tag{
  padding:7px 15px;border-radius:var(--r-pill);background:#fff;
  border:1px solid var(--line-light);font-size:13px;color:var(--text-dark-sub);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line-light);
  border-radius:var(--r-lg);padding:52px 28px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .icon{width:64px;height:64px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-deep);font-size:26px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-dark-sub);font-size:15px;max-width:440px;margin:0 auto 24px}
.empty-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 板块标题 ---------- */
.section-head{max-width:680px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);margin-bottom:12px}
.section-head p{color:var(--text-dark-sub);font-size:15.5px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 卡片 ---------- */
.card-grid{margin-top:-8px}
.card-grid .cell{margin-bottom:24px}
.content-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.42)}
.content-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9F1EC}
.content-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.content-card:hover .thumb img{transform:scale(1.06)}
.content-card .thumb .badge{position:absolute;left:14px;top:14px;background:rgba(12,21,18,.78);color:#fff;border-color:rgba(255,255,255,.2);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.content-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.content-card h3{font-size:18px;line-height:1.45}
.content-card p{font-size:14px;line-height:1.8;color:var(--text-dark-sub)}
.content-card .more{
  margin-top:auto;padding-top:6px;font-size:13.5px;font-weight:800;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:7px;
}
.content-card .more i{transition:transform .22s ease}
.content-card:hover .more i{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:0 20px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(18,196,106,.45);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 0;font-size:16px;font-weight:800;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .num{font-family:var(--mono);font-size:14px;color:var(--brand)}
.faq-item summary .plus{margin-left:auto;color:var(--brand);font-size:18px;transition:transform .25s ease}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .answer{padding:0 0 20px 34px;font-size:15px;line-height:1.9;color:var(--text-dark-sub)}

/* ---------- CTA ---------- */
.cta-band{
  background:
    radial-gradient(1100px 380px at 12% 0%,rgba(18,196,106,.24),transparent 62%),
    radial-gradient(700px 300px at 92% 110%,rgba(255,122,47,.18),transparent 65%),
    var(--bg-dark);
  color:var(--text-light);padding:66px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);color:#fff}
.cta-inner p{margin-top:12px;max-width:560px;font-size:15px;color:var(--text-light-sub)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark-2);color:var(--text-light-sub);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:6px}
.footer-brand p{font-size:14px;line-height:1.9;max-width:360px;margin-top:14px}
.footer-brand .risk{font-size:12.5px;opacity:.72;margin-top:10px}
.footer-col h3{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col a{display:block;font-size:14px;padding:6px 0;color:var(--text-light-sub);transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);font-size:13px;
}
.footer-bottom a{color:var(--brand);transition:opacity .2s ease}
.footer-bottom a:hover{opacity:.78}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:var(--sec-2) 0}
  main{padding-top:96px}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{display:none}
  .site-header.nav-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;left:16px;right:16px;top:72px;
    padding:14px;border-radius:var(--r-lg);
    background:rgba(12,21,18,.96);
    border:1px solid rgba(255,255,255,.12);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    box-shadow:var(--sh-2);
  }
  .site-header.nav-open .nav-link{padding:13px 16px;font-size:15px}
  .site-header.nav-open .nav-link.is-active::after{display:none}
  .site-header.nav-open .nav-link.is-active{background:rgba(18,196,106,.16)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  .site-header{top:10px;padding:0 14px}
  .nav-pill{padding:8px 10px 8px 12px;gap:8px}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px}
  .brand-full{display:none}
  .brand-short{display:inline}
  .section{padding:var(--sec-3) 0}
  .article-body{padding:36px 0 12px}
  .prose{font-size:16px;line-height:1.9}
  .prose h2{font-size:21px;margin:34px 0 14px}
  .article-head h1{margin:14px 0 14px}
  .article-meta{gap:8px 14px;font-size:13px}
  .article-cover{margin-top:24px;border-radius:var(--r-md)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .empty-actions{flex-direction:column}
  .empty-actions .btn{width:100%}
  .faq-item summary{gap:10px;font-size:15px}
  .faq-item .answer{padding-left:0}
}

/* roulang page: category3 */
:root{
  --brand:#12C46A;
  --brand-deep:#0A8F4D;
  --brand-soft:#E6FBF0;
  --accent:#FF7A2F;
  --accent-2:#FFD34D;
  --bg-dark:#0C1512;
  --bg-dark-2:#132019;
  --bg-light:#F6F9F7;
  --surface:#FFFFFF;
  --text-light:#E8F3EC;
  --text-light-sub:#9FB8AC;
  --text-dark:#12211A;
  --text-dark-sub:#4E675C;
  --line-dark:#1E3128;
  --line-light:#E2ECE6;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(6,26,18,.18);
  --sh-2:0 18px 48px rgba(6,26,18,.28);
  --glow:0 0 0 1px rgba(18,196,106,.35), 0 8px 28px rgba(18,196,106,.35);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --max:1200px;
  --gap-desktop:96px;
  --gap-tablet:72px;
  --gap-mobile:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text-dark);
  background:var(--bg-light);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,transform .22s ease,box-shadow .22s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px;}
.section{padding:var(--gap-desktop) 0;}
.section--light{background:var(--bg-light);}
.section--white{background:var(--surface);}
.section--dark{background:var(--bg-dark);color:var(--text-light);}
.section--dark h2,.section--dark h3{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-deep);background:var(--brand-soft);
  border:1px solid rgba(18,196,106,.28);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.section--dark .eyebrow{color:var(--brand);background:rgba(18,196,106,.12);border-color:rgba(18,196,106,.35);}
.eyebrow i{font-size:11px;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;}
.section-desc{color:var(--text-dark-sub);font-size:16px;margin:0;}
.section--dark .section-desc{color:var(--text-light-sub);}
.rule{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(18,196,106,0) 0%,rgba(18,196,106,.55) 50%,rgba(18,196,106,0) 100%);
}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding:16px 0;
  transition:padding .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{padding:8px 0;background:rgba(12,21,18,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.nav-pill{
  width:100%;max-width:var(--max);margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  background:rgba(12,21,18,.72);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-pill);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  color:#04170E;font-weight:800;font-size:19px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:800;color:#fff;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-light-sub);letter-spacing:.06em;}
.brand-short{display:none;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-light-sub);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:22px;height:3px;border-radius:2px;background:var(--brand);
  transition:transform .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}
.nav-cta{
  flex-shrink:0;padding:10px 20px;border-radius:var(--r-pill);
  font-size:14px;font-weight:800;color:#04170E;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.06);}
.nav-toggle{
  display:none;width:42px;height:42px;flex-shrink:0;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:16px;cursor:pointer;
}
.nav-toggle:hover{background:rgba(18,196,106,.18);border-color:rgba(18,196,106,.5);}

/* Hero */
.hero{
  position:relative;
  padding:168px 0 96px;
  background-color:var(--bg-dark);
  background-image:linear-gradient(115deg,rgba(12,21,18,.94) 0%,rgba(12,21,18,.78) 48%,rgba(12,21,18,.55) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:var(--text-light);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(18,196,106,0),rgba(18,196,106,.5),rgba(18,196,106,0));
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;}
.hero-title{font-size:clamp(30px,5vw,52px);color:#fff;margin-bottom:20px;}
.hero-title span{color:var(--brand);}
.hero-sub{font-size:17px;color:var(--text-light-sub);max-width:620px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:linear-gradient(140deg,var(--brand),var(--brand-deep));color:#04170E;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(18,196,106,.45),0 12px 34px rgba(18,196,106,.45);}
.btn-ghost{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.22);color:#fff;}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand);}
.btn-outline{background:transparent;border-color:var(--line-light);color:var(--text-dark);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn:active{transform:translateY(0) scale(.99);}
.hero-note{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-light-sub);}
.hero-note i{color:var(--accent-2);}
.hero-card{
  padding:28px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.hero-card h2{font-size:17px;color:#fff;margin-bottom:18px;display:flex;align-items:center;gap:9px;}
.hero-card h2 i{color:var(--brand);}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:14px;color:var(--text-light-sub);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{color:var(--brand);margin-top:5px;font-size:13px;flex-shrink:0;}

/* 数据条 */
.stat-band{background:var(--surface);padding:0;}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  margin-top:-46px;position:relative;z-index:5;
}
.stat-card{
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.45);}
.stat-num{font-family:var(--mono);font-size:32px;font-weight:800;color:var(--brand-deep);line-height:1.1;letter-spacing:-.02em;}
.stat-num small{font-size:15px;color:var(--text-dark-sub);font-weight:700;margin-left:3px;}
.stat-label{font-size:14px;font-weight:700;margin-top:8px;}
.stat-text{font-size:13px;color:var(--text-dark-sub);margin:4px 0 0;}

/* 时间轴 */
.timeline{position:relative;padding-left:56px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(18,196,106,.35) 60%,rgba(18,196,106,0) 100%);
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:26px;}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;left:-56px;top:20px;
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:800;
  background:var(--surface);color:var(--brand-deep);
  border:2px solid var(--brand);box-shadow:0 0 0 6px var(--bg-light);
}
.tl-card{
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-lg);padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-card:hover{transform:translateX(6px);border-color:rgba(18,196,106,.5);box-shadow:var(--sh-2);}
.tl-head{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:8px;}
.tl-head h3{margin:0;font-size:19px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);border:1px solid rgba(18,196,106,.3);
}
.tag--accent{background:rgba(255,122,47,.12);color:#C24E0B;border-color:rgba(255,122,47,.35);}
.tl-card p{margin:0 0 10px;color:var(--text-dark-sub);font-size:15px;}
.tl-meta{font-size:13px;color:var(--text-dark-sub);display:flex;align-items:center;gap:8px;margin:0;}
.tl-meta i{color:var(--brand);}

/* 图文交替 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:80px;}
.split--reverse .split-media{order:2;}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease;}
.split-media:hover img{transform:scale(1.04);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(12,21,18,0) 40%,rgba(12,21,18,.55) 100%);
}
.split-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  font-size:12px;font-weight:800;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(12,21,18,.72);border:1px solid rgba(18,196,106,.5);color:var(--brand);
  backdrop-filter:blur(8px);
}
.split-body h3{font-size:clamp(21px,2.4vw,28px);margin-bottom:14px;}
.split-body > p{color:var(--text-dark-sub);}
.dot-list{margin-top:18px;}
.dot-list li{
  position:relative;padding-left:24px;margin-bottom:11px;
  font-size:15px;color:var(--text-dark);
}
.dot-list li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:9px;height:9px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 0 4px rgba(18,196,106,.16);
}
.dot-list li strong{color:var(--brand-deep);}

/* 排查清单 */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.check-card{
  display:flex;gap:16px;
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.check-card:hover{border-color:rgba(18,196,106,.5);transform:translateY(-3px);box-shadow:var(--sh-2);}
.check-idx{
  font-family:var(--mono);font-size:18px;font-weight:800;color:var(--accent);
  flex-shrink:0;min-width:38px;line-height:1.4;
}
.check-card h3{font-size:16px;margin-bottom:6px;}
.check-card p{font-size:14px;color:var(--text-dark-sub);margin:0;}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{border-color:rgba(18,196,106,.55);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 22px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--text-dark);line-height:1.6;
}
.faq-q .num{font-family:var(--mono);color:var(--brand);font-size:15px;font-weight:800;flex-shrink:0;}
.faq-q .icon{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-deep);font-size:13px;
  transition:transform .28s ease,background-color .28s ease,color .28s ease;
}
.faq-item.is-open .faq-q{color:var(--brand-deep);}
.faq-item.is-open .faq-q .icon{transform:rotate(180deg);background:var(--brand);color:#04170E;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{padding:0 22px 22px 60px;color:var(--text-dark-sub);font-size:15px;}

/* 表单 */
.lead-wrap{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:56px;align-items:start;
}
.lead-copy h2{font-size:clamp(24px,3.2vw,34px);color:#fff;}
.lead-copy p{color:var(--text-light-sub);}
.lead-points{margin-top:24px;}
.lead-points li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;color:var(--text-light-sub);font-size:15px;}
.lead-points i{color:var(--brand);margin-top:5px;font-size:13px;}
.lead-form{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);padding:32px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;font-weight:700;color:var(--text-light);margin-bottom:8px;letter-spacing:.02em;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:13px 16px;font-size:15px;font-family:inherit;
  color:var(--text-dark);background:#fff;
  border:1px solid rgba(255,255,255,.2);border-radius:var(--r-md);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{min-height:104px;resize:vertical;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,196,106,.25);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-hint{font-size:12.5px;color:var(--text-light-sub);margin:14px 0 0;}
.lead-form .btn-primary{width:100%;margin-top:6px;}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);padding:52px 44px;
  background:linear-gradient(125deg,#0A8F4D 0%,#12C46A 58%,#5BE39C 100%);
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;top:-40%;left:-10%;width:60%;height:200%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,211,77,.35),rgba(255,255,255,0));
  transform:rotate(18deg);
  animation:sweep 6s linear infinite;
}
@keyframes sweep{0%{transform:translateX(-60%) rotate(18deg);}100%{transform:translateX(240%) rotate(18deg);}}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;}
.cta-text h2{color:#04170E;font-size:clamp(22px,2.8vw,30px);margin-bottom:6px;}
.cta-text p{color:rgba(4,23,14,.78);margin:0;font-weight:600;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-primary{background:#0C1512;color:#fff;box-shadow:0 12px 30px rgba(4,23,14,.35);}
.cta-band .btn-primary:hover{color:var(--brand);}
.cta-band .btn-outline{border-color:rgba(4,23,14,.35);color:#04170E;}
.cta-band .btn-outline:hover{border-color:#0C1512;color:#0C1512;}

/* 相关内容 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.5);}
.rel-cover{position:relative;overflow:hidden;}
.rel-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.rel-card:hover .rel-cover img{transform:scale(1.05);}
.rel-cover .tag{position:absolute;left:14px;top:14px;background:rgba(12,21,18,.78);color:var(--brand);border-color:rgba(18,196,106,.45);}
.rel-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.rel-body h3{font-size:17px;margin-bottom:8px;}
.rel-body p{font-size:14px;color:var(--text-dark-sub);flex:1;margin-bottom:16px;}
.rel-link{font-size:14px;font-weight:800;color:var(--brand-deep);display:inline-flex;align-items:center;gap:8px;}
.rel-link i{transition:transform .25s ease;}
.rel-card:hover .rel-link i{transform:translateX(4px);}

/* 页脚 */
.site-footer{background:var(--bg-dark-2);color:var(--text-light-sub);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.85;margin-bottom:14px;}
.footer-brand .risk{font-size:12.5px;color:#6F8A7C;border-left:2px solid var(--line-dark);padding-left:12px;}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;padding:6px 0;color:var(--text-light-sub);}
.footer-col a:hover{color:var(--brand);transform:translateX(3px);}
.footer-bottom{
  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:#6F8A7C;
}
.footer-bottom a{color:var(--brand);}
.footer-bottom a:hover{text-decoration:underline;}

/* 响应式 */
@media screen and (max-width:1024px){
  :root{--gap-desktop:72px;}
  .hero{padding:150px 0 80px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);margin-top:-34px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .split--reverse .split-media{order:0;}
  .lead-wrap{grid-template-columns:1fr;gap:36px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .nav-links{gap:0;}
  .nav-link{padding:9px 10px;font-size:13.5px;}
  .nav-cta{padding:10px 16px;font-size:13.5px;}
}
@media screen and (max-width:768px){
  :root{--gap-desktop:56px;--gap-tablet:56px;}
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:6px;
    padding:96px 24px 40px;
    background:rgba(9,17,14,.97);
    backdrop-filter:blur(16px);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    margin-left:0;z-index:-1;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto;z-index:-1;}
  .nav-link{font-size:16px;padding:14px 16px;border-radius:var(--r-md);background:rgba(255,255,255,.04);}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(18,196,106,.16);color:var(--brand);}
  .check-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .rel-grid{grid-template-columns:1fr;}
  .timeline{padding-left:46px;}
  .timeline::before{left:15px;}
  .tl-node{left:-46px;width:32px;height:32px;font-size:12px;box-shadow:0 0 0 5px var(--bg-light);}
  .faq-a-inner{padding-left:22px;}
}
@media screen and (max-width:520px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .hero{padding:132px 0 64px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-card{padding:22px 18px;}
  .tl-card{padding:20px 18px;}
  .lead-form{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .check-idx{min-width:32px;font-size:16px;}
}

/* roulang page: category2 */
:root{
  --brand:#12C46A;
  --brand-deep:#0A8F4D;
  --brand-soft:#E6FBF0;
  --accent:#FF7A2F;
  --accent-2:#FFD34D;
  --bg-dark:#0C1512;
  --bg-dark-2:#132019;
  --bg-light:#F6F9F7;
  --surface:#FFFFFF;
  --text:#12211A;
  --text-sub:#4E675C;
  --text-dark:#E8F3EC;
  --text-dark-sub:#9FB8AC;
  --line:#E2ECE6;
  --line-dark:#1E3128;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(6,26,18,.08);
  --sh-2:0 18px 48px rgba(6,26,18,.18);
  --glow:0 0 0 1px rgba(18,196,106,.35),0 8px 28px rgba(18,196,106,.35);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:.005em;}
p{margin:0 0 14px;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;}

.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;}
.grid-x{margin-left:0;margin-right:0;}
.grid-x>.cell{padding-left:0;padding-right:0;}
.gutters{margin-left:-12px;margin-right:-12px;}
.gutters>.cell{padding-left:12px;padding-right:12px;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--brand);color:#04150C;box-shadow:var(--glow);}
.btn-primary:hover{background:#1AD475;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,196,106,.5),0 14px 34px rgba(18,196,106,.45);color:#04150C;}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text-dark);border-color:rgba(255,255,255,.22);}
.btn-ghost:hover{border-color:var(--brand);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-deep);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn-block{width:100%;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge-accent{background:rgba(255,122,47,.14);color:#C4501A;}
.badge-dark{background:rgba(18,196,106,.14);color:var(--brand);border:1px solid rgba(18,196,106,.32);}
.tag{
  display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--text-sub);background:#fff;border:1px solid var(--line);
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);}

/* ===== 头部导航 ===== */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  padding:0 20px;
  transition:top .25s ease;
}
.site-header.is-stuck{top:10px;}
.nav-pill{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 16px;
  border-radius:var(--r-pill);
  background:rgba(12,21,18,.74);
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 14px 40px rgba(6,26,18,.32);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck .nav-pill{background:rgba(12,21,18,.92);box-shadow:0 18px 48px rgba(6,26,18,.42);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  color:#04150C;font-weight:800;font-size:18px;
  box-shadow:0 6px 18px rgba(18,196,106,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#fff;font-size:15px;font-weight:800;}
.brand-text em{font-style:normal;font-size:10.5px;color:var(--text-dark-sub);letter-spacing:.08em;}
.brand-short{display:none;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-dark-sub);white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:2px;background:var(--brand);
}
.nav-cta{
  margin-left:6px;padding:11px 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#04150C;font-size:14px;font-weight:800;white-space:nowrap;
  box-shadow:var(--glow);
}
.nav-cta:hover{background:#1AD475;transform:translateY(-2px);color:#04150C;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  align-items:center;justify-content:center;
  color:#fff;background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);
  font-size:17px;
}
.nav-toggle:hover{background:rgba(255,255,255,.16);}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:170px 0 96px;
  background:
    linear-gradient(150deg,rgba(9,18,15,.92) 0%,rgba(12,21,18,.86) 45%,rgba(10,32,22,.9) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:var(--text-dark);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,196,106,.55),transparent);
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;
}
.crumb{font-size:13px;color:var(--text-dark-sub);margin-bottom:18px;}
.crumb a:hover{color:var(--brand);}
.crumb span{margin:0 8px;opacity:.6;}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);
  margin:16px 0 18px;
  color:#fff;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  font-size:16.5px;color:var(--text-dark-sub);max-width:620px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-note{
  display:flex;align-items:center;gap:8px;
  margin-top:20px;font-size:13px;color:var(--text-dark-sub);
}
.hero-note i{color:var(--accent);}

.glass-card{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:0 22px 54px rgba(4,18,12,.4);
}
.glass-card h3{font-size:15px;color:#fff;margin-bottom:4px;}
.glass-card .glass-desc{font-size:12.5px;color:var(--text-dark-sub);margin-bottom:20px;}
.metric-list{display:grid;gap:14px;}
.metric{
  display:flex;align-items:baseline;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.13);
}
.metric:last-child{border-bottom:0;padding-bottom:0;}
.metric-label{font-size:13.5px;color:var(--text-dark-sub);}
.metric-value{font-family:var(--mono);font-size:24px;font-weight:700;color:var(--brand);}
.metric-value small{font-size:12px;color:var(--text-dark-sub);margin-left:3px;font-family:inherit;}

/* ===== 通用板块 ===== */
.section{padding:96px 0;}
.section--light{background:var(--bg-light);}
.section--white{background:#fff;}
.section--dark{background:var(--bg-dark);color:var(--text-dark);}
.section--dark2{background:var(--bg-dark-2);color:var(--text-dark);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3.1vw,34px);margin:14px 0 12px;}
.section-head p{color:var(--text-sub);font-size:15.5px;margin:0;}
.section--dark .section-head p,.section--dark2 .section-head p{color:var(--text-dark-sub);}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ===== 概览数据条 ===== */
.statbar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat{
  padding:28px 24px;border-right:1px solid var(--line);
  transition:background-color .2s ease;
}
.stat:last-child{border-right:0;}
.stat:hover{background:var(--brand-soft);}
.stat i{font-size:17px;color:var(--brand-deep);}
.stat b{
  display:block;font-family:var(--mono);font-size:30px;font-weight:700;
  color:var(--text);margin:10px 0 2px;
}
.stat span{font-size:13.5px;color:var(--text-sub);}

/* ===== 主体：目录 + 内容 ===== */
.doc-layout{align-items:flex-start;}
.doc-aside{position:sticky;top:104px;}
.doc-toc{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.toc-title{
  font-size:13px;letter-spacing:.1em;color:var(--text-sub);
  text-transform:uppercase;font-weight:700;margin-bottom:14px;
}
.toc-link{
  display:block;padding:10px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--text-sub);border-left:3px solid transparent;
}
.toc-link:hover{background:var(--bg-light);color:var(--text);}
.toc-link.is-active{
  background:var(--brand-soft);color:var(--brand-deep);
  border-left-color:var(--brand);font-weight:700;
}
.doc-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--sh-1);margin-bottom:26px;
  scroll-margin-top:110px;
}
.doc-block:last-child{margin-bottom:0;}
.doc-block h2{
  font-size:23px;margin-bottom:8px;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.3;
}
.doc-block .block-lead{color:var(--text-sub);font-size:15px;margin:0 0 24px;padding-left:18px;}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.feature-item{
  display:flex;gap:12px;padding:16px;border-radius:var(--r-md);
  background:var(--bg-light);border:1px solid transparent;
  transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.feature-item:hover{border-color:var(--brand);background:#fff;transform:translateY(-2px);}
.feature-item i{color:var(--brand-deep);font-size:16px;margin-top:4px;}
.feature-item strong{display:block;font-size:15px;margin-bottom:3px;}
.feature-item p{margin:0;font-size:13.5px;color:var(--text-sub);line-height:1.75;}

.freq-list{display:grid;gap:10px;}
.freq-row{
  display:grid;grid-template-columns:1.1fr 1fr 1.4fr;gap:16px;align-items:center;
  padding:15px 18px;border-radius:var(--r-md);
  background:var(--bg-light);border:1px solid var(--line);
}
.freq-row strong{font-size:15px;}
.freq-row .freq-num{font-family:var(--mono);font-size:19px;color:var(--brand-deep);font-weight:700;}
.freq-row span:last-child{font-size:13.5px;color:var(--text-sub);}

.steps{display:grid;gap:16px;counter-reset:step;}
.step{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px;border-radius:var(--r-md);background:var(--bg-light);
}
.step-num{
  flex-shrink:0;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:#04150C;font-weight:800;font-size:16px;
  font-family:var(--mono);
}
.step h3{font-size:16px;margin-bottom:4px;}
.step p{margin:0;font-size:14px;color:var(--text-sub);}

.check-list{display:grid;gap:12px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-sub);
}
.check-list i{color:var(--brand);margin-top:5px;font-size:14px;}

/* ===== 深色通道对比 ===== */
.compare-wrap{
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
}
.compare-head,.compare-row{
  display:grid;grid-template-columns:1.05fr 1fr 1fr 1fr;
  gap:10px;align-items:center;padding:16px 22px;
}
.compare-head{
  background:rgba(255,255,255,.05);
  font-size:13px;letter-spacing:.06em;color:var(--text-dark-sub);
  border-bottom:1px solid rgba(255,255,255,.1);
}
.compare-head .is-feature{color:var(--accent-2);font-weight:700;}
.compare-row{border-bottom:1px solid rgba(255,255,255,.07);font-size:14.5px;}
.compare-row:last-child{border-bottom:0;}
.compare-row .cmp-label{color:var(--text-dark-sub);font-size:13.5px;}
.cmp-cell{color:var(--text-dark);}
.cmp-cell.is-yes{color:var(--brand);font-weight:700;}
.cmp-cell.is-no{color:rgba(159,184,172,.5);}
.compare-note{
  margin-top:18px;font-size:13px;color:var(--text-dark-sub);
  display:flex;gap:8px;align-items:flex-start;
}
.compare-note i{color:var(--accent);margin-top:4px;}

/* ===== 场景卡 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.45);}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0C1512;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.05);}
.scene-thumb .badge{position:absolute;top:14px;left:14px;background:rgba(12,21,18,.82);color:var(--brand);}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.scene-body h3{font-size:17px;}
.scene-body p{font-size:14px;color:var(--text-sub);margin:0;flex:1;}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(18,196,106,.5);box-shadow:0 10px 28px rgba(6,26,18,.1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:700;color:var(--text);
}
.faq-q .q-num{
  font-family:var(--mono);font-size:13px;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:var(--r-sm);
  padding:3px 8px;flex-shrink:0;
}
.faq-q .q-icon{
  margin-left:auto;flex-shrink:0;font-size:15px;color:var(--brand-deep);
  transition:transform .25s ease;
}
.faq-item.is-open .faq-q{color:var(--brand-deep);}
.faq-item.is-open .q-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{margin:0;padding:0 22px 20px 60px;font-size:14.5px;color:var(--text-sub);}

/* ===== 相关内容 ===== */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-direction:column;gap:10px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,196,106,.45);}
.rel-card i.rel-icon{font-size:20px;color:var(--brand-deep);}
.rel-card h3{font-size:16.5px;}
.rel-card p{font-size:13.5px;color:var(--text-sub);margin:0;flex:1;}
.rel-card .rel-link{font-size:13.5px;font-weight:700;color:var(--brand-deep);display:inline-flex;gap:6px;align-items:center;}
.rel-card .rel-link i{font-size:12px;transition:transform .2s ease;}
.rel-card:hover .rel-link i{transform:translateX(4px);}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  background:
    linear-gradient(140deg,rgba(10,26,19,.94),rgba(12,21,18,.9)),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  border-radius:var(--r-lg);
  padding:52px 44px;
  color:var(--text-dark);
  display:grid;grid-template-columns:1.3fr auto;gap:32px;align-items:center;
  border:1px solid rgba(18,196,106,.28);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,211,77,.16),transparent);
  transform:skewX(-14deg);
  animation:sheen 6s linear infinite;
}
@keyframes sheen{
  0%{left:-45%;}
  60%{left:120%;}
  100%{left:120%;}
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);color:#fff;margin-bottom:10px;}
.cta-band p{margin:0;color:var(--text-dark-sub);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 表单 ===== */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;font-weight:700;color:var(--text);}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--bg-light);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,196,106,.16);
}
.field-full{grid-column:1 / -1;}
.form-tip{font-size:12.5px;color:var(--text-sub);margin-top:14px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-dark-2);color:var(--text-dark-sub);padding:64px 0 26px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand p{font-size:13.5px;line-height:1.9;margin:16px 0 0;max-width:360px;}
.footer-brand .risk{
  font-size:12.5px;color:rgba(159,184,172,.72);margin-top:10px;
}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:13.5px;padding:5px 0;color:var(--text-dark-sub);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(159,184,172,.8);
}
.footer-bottom a{color:var(--brand);}
.footer-bottom a:hover{text-decoration:underline;}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .site-header{top:10px;padding:0 14px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-links{
    position:fixed;inset:0;margin-left:0;
    flex-direction:column;justify-content:center;align-items:center;gap:6px;
    background:rgba(9,17,14,.97);
    backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s ease,visibility .24s ease;
    padding:90px 24px;
  }
  .nav-links.is-open{opacity:1;visibility:visible;pointer-events:auto;}
  .nav-link{font-size:19px;padding:14px 28px;}
  .nav-link.is-active::after{display:none;}

  .hero{padding:140px 0 76px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .section{padding:72px 0;}
  .statbar{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .doc-aside{position:static;margin-bottom:22px;}
  .doc-toc{display:flex;gap:8px;overflow-x:auto;padding:14px;scrollbar-width:none;}
  .doc-toc::-webkit-scrollbar{display:none;}
  .toc-title{display:none;}
  .toc-link{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;padding:8px 14px;border-radius:var(--r-pill);background:var(--bg-light);}
  .toc-link.is-active{border-left:0;border-bottom-color:var(--brand);}
  .scene-grid,.rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
}

@media screen and (max-width:640px){
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .brand-text em{font-size:10px;}
  .hero{padding:122px 0 62px;}
  .hero h1{font-size:28px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .statbar{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:0;}
  .stat b{font-size:26px;}
  .doc-block{padding:24px 20px;}
  .doc-block h2{font-size:20px;}
  .doc-block .block-lead{padding-left:0;}
  .feature-list{grid-template-columns:1fr;}
  .freq-row{grid-template-columns:1fr;gap:6px;}
  .freq-row span:last-child{font-size:13px;}
  .faq-q{padding:16px;font-size:15px;gap:10px;}
  .faq-a p{padding:0 16px 18px 16px;}
  .scene-grid,.rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .form-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}