/* roulang page: index */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-text-inv:#EDF1EC;
  --c-muted:#6F7C77;
  --c-muted-inv:#9BA8A2;
  --c-line:#E2E6DF;
  --c-line-inv:rgba(255,255,255,.10);
  --c-ok:#1F9D6B;
  --c-warn:#E4572E;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sec-y:clamp(64px,8vw,120px);
  --t:.22s cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --bs-body-font-family:var(--sans);
  --bs-body-color:var(--c-text);
  --bs-body-bg:var(--c-paper);
  --bs-link-color:var(--c-brand);
  --bs-link-hover-color:var(--c-brand-soft);
  --bs-border-color:var(--c-line);
  --bs-primary:var(--c-brand);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-soft);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{color:inherit;margin:0;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1240px;padding-left:24px;padding-right:24px;}
section{position:relative;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;font-weight:600;
  color:var(--c-brand-soft);text-transform:uppercase;
}
.eyebrow-line{display:inline-block;width:28px;height:2px;background:var(--c-neon);border-radius:2px;}
.eyebrow-light{color:var(--c-muted-inv);}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-neon);color:var(--c-brand-dark);padding:10px 16px;z-index:2000;}
.skip-link:focus{left:12px;top:12px;}

/* ============ 导航 ============ */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(10,13,12,.96);
  border-bottom:1px solid var(--c-line-inv);
  transition:height var(--t),background var(--t),backdrop-filter var(--t);
  height:76px;
}
.site-nav.is-scrolled{
  height:60px;
  background:rgba(10,13,12,.92);
  backdrop-filter:blur(10px);
}
.site-nav::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,0));
  transition:width .4s cubic-bezier(.22,.61,.36,1);
}
.site-nav.is-scrolled::after{width:100%;}
.nav-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  display:inline-flex;align-items:baseline;gap:6px;line-height:1;
  color:var(--c-text-inv);flex-shrink:0;
}
.brand-mark{
  font-family:var(--mono);font-size:13px;letter-spacing:.2em;
  color:var(--c-neon);font-weight:600;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--c-text-inv);}
.brand:hover .brand-name{color:#fff;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links .nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:550;
  color:var(--c-muted-inv);
}
.nav-links .nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--c-neon);transform:translateX(-50%);
  transition:width var(--t);
}
.nav-links .nav-link:hover{color:var(--c-text-inv);}
.nav-links .nav-link:hover::after{width:22px;}
.nav-links .nav-link.active{
  color:var(--c-text-inv);
  text-shadow:0 0 12px rgba(200,255,77,.45);
}
.nav-links .nav-link.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--c-amber);color:#072722;font-weight:650;font-size:15px;
  transition:background var(--t),box-shadow var(--t),transform var(--t);
}
.btn-nav-cta:hover{
  background:var(--c-neon);color:#072722;
  box-shadow:0 0 0 1px rgba(200,255,77,.4),0 0 22px -4px rgba(200,255,77,.55);
  transform:translateY(-2px);
}
.nav-toggle{
  width:46px;height:46px;border-radius:10px;
  border:1px solid var(--c-line-inv);background:transparent;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text-inv);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-offcanvas{background:var(--c-ink);color:var(--c-text-inv);border-left:1px solid var(--c-line-inv);width:300px;}
.nav-offcanvas .offcanvas-header{border-bottom:1px solid var(--c-line-inv);padding:20px 24px;}
.nav-offcanvas .offcanvas-title{font-size:16px;font-weight:800;color:var(--c-text-inv);letter-spacing:.02em;}
.nav-offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.nav-offcanvas .offcanvas-body{padding:16px 0;}
.mnav-item{
  display:block;padding:14px 24px;font-size:15.5px;color:var(--c-muted-inv);
  border-left:3px solid transparent;transition:all var(--t);
}
.mnav-item:hover,.mnav-item.active{
  color:var(--c-text-inv);background:rgba(200,255,77,.05);
  border-left-color:var(--c-neon);
}
.mnav-cta{margin:18px 24px 0;display:flex;justify-content:center;}

/* ============ 通用按钮 ============ */
.btn-primary-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--c-amber);color:#072722;font-weight:650;font-size:16px;
  border:1px solid var(--c-amber);
  transition:all var(--t);
}
.btn-primary-cta:hover{
  background:var(--c-neon);border-color:var(--c-neon);color:#072722;
  transform:translateY(-2px);
  box-shadow:0 0 26px -6px rgba(200,255,77,.6);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-text-inv);
  border:1px solid rgba(255,255,255,.28);font-weight:600;font-size:16px;
  transition:all var(--t);
}
.btn-ghost:hover{border-color:var(--c-neon);color:var(--c-neon);}
.btn-ghost-dark{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-brand);
  border:1px solid rgba(12,59,50,.28);font-weight:600;font-size:16px;
  transition:all var(--t);
}
.btn-ghost-dark:hover{border-color:var(--c-brand);background:rgba(12,59,50,.05);color:var(--c-brand-dark);}
.link-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-brand);
  border-bottom:1px solid currentColor;padding-bottom:2px;
  transition:all var(--t);
}
.link-text:hover{color:var(--c-amber);border-color:var(--c-amber);}
.link-text .arrow{transition:transform var(--t);}
.link-text:hover .arrow{transform:translateX(4px);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  border-color:var(--c-brand);
  border-radius:var(--r-btn);
}

/* ============ Hero ============ */
.hero{
  padding-top:76px;
  background:var(--c-ink);
  color:var(--c-text-inv);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,#0A0D0C 88%,#0C3B32 45%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,77,.55),rgba(200,255,77,0));
}
.hero-inner{
  position:relative;z-index:2;
  padding:clamp(64px,9vw,132px) 24px clamp(56px,7vw,96px);
}
.hero h1{
  max-width:16ch;
  font-size:clamp(32px,5vw,62px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  margin:22px 0 22px;
  color:#fff;
}
.hero-sub{
  max-width:52ch;font-size:16.5px;line-height:1.85;
  color:var(--c-muted-inv);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hairline{
  height:1px;width:100%;margin:52px 0 30px;
  background:linear-gradient(90deg,rgba(200,255,77,.6),rgba(255,255,255,.08) 60%,transparent);
}
.hero-facts{display:flex;flex-wrap:wrap;gap:clamp(28px,5vw,72px);}
.hero-facts li{display:flex;flex-direction:column;gap:4px;}
.hero-facts .num{
  font-family:var(--mono);font-size:clamp(28px,3.4vw,36px);font-weight:600;
  color:var(--c-neon);line-height:1.1;letter-spacing:-.02em;
}
.hero-facts .unit{font-size:12px;letter-spacing:.14em;color:var(--c-muted-inv);}

/* ============ 痛点 ============ */
.pain{padding:var(--sec-y) 0;background:var(--c-paper);}
.side-sticky{position:sticky;top:110px;}
.side-sticky h2{font-size:clamp(24px,3.2vw,40px);line-height:1.25;font-weight:750;margin:16px 0 18px;}
.side-sticky p{color:var(--c-muted);font-size:15.5px;max-width:34ch;}
.pain-list{border-top:1px solid var(--c-line);}
.pain-item{
  display:grid;grid-template-columns:96px 1fr;gap:24px;
  padding:30px 0;border-bottom:1px solid var(--c-line);
  transition:background var(--t);
}
.pain-item:hover{background:rgba(200,255,77,.06);}
.pain-no{
  font-family:var(--mono);font-size:clamp(32px,4vw,48px);font-weight:600;
  color:var(--c-brand);line-height:1;letter-spacing:-.03em;opacity:.9;
}
.pain-item h3{font-size:20px;font-weight:650;margin-bottom:8px;}
.pain-item p{color:var(--c-muted);font-size:15.5px;max-width:56ch;}

/* ============ 解决方案（暗区） ============ */
.solution{
  background:var(--c-ink);color:var(--c-text-inv);
  padding:var(--sec-y) 0;overflow:hidden;
}
.solution .side-sticky h2{color:#fff;}
.solution .side-sticky p{color:var(--c-muted-inv);}
.solution-figure{
  margin-top:28px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line-inv);
}
.solution-figure img{width:100%;height:180px;object-fit:cover;}
.sol-list{display:flex;flex-direction:column;}
.sol-item{
  display:grid;grid-template-columns:40px 1fr;gap:20px;
  padding:24px 0;border-bottom:1px solid var(--c-line-inv);
  transition:border-color var(--t);
}
.sol-item:hover{border-color:rgba(200,255,77,.45);}
.sol-icon{
  width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(200,255,77,.4);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-neon);
}
.sol-icon svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.sol-item h3{font-size:19px;font-weight:650;margin-bottom:6px;color:#fff;}
.sol-item p{font-size:15px;line-height:1.8;color:var(--c-muted-inv);max-width:60ch;}

/* ============ 数据 ============ */
.stats{padding:var(--sec-y) 0;background:var(--c-paper-2);}
.stats-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.stats-head h2{font-size:clamp(24px,3.2vw,40px);font-weight:750;line-height:1.25;margin-top:14px;}
.stats-head p{color:var(--c-muted);font-size:15px;max-width:40ch;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{
  padding-top:18px;border-top:2px solid var(--c-neon);
  background:transparent;
}
.stat-card .val{
  font-family:var(--mono);font-size:clamp(30px,3.6vw,44px);font-weight:600;
  color:var(--c-brand);line-height:1.1;letter-spacing:-.02em;
}
.stat-card .val small{font-size:14px;font-weight:400;margin-left:4px;color:var(--c-brand-soft);}
.stat-card .cap{margin-top:10px;font-size:12px;letter-spacing:.12em;color:var(--c-muted);}

/* ============ 最新动态 ============ */
.news{padding:var(--sec-y) 0;background:var(--c-paper);}
.news-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.news-head h2{font-size:clamp(24px,3.2vw,40px);font-weight:750;line-height:1.25;margin-top:14px;}
.news-head .sub{font-size:12px;letter-spacing:.12em;color:var(--c-muted);margin-top:8px;font-family:var(--mono);}
.card-lead{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;height:100%;
  box-shadow:0 14px 34px -24px rgba(10,14,13,.28);
  transition:transform var(--t),border-color var(--t);
}
.card-lead:hover{transform:translateY(-3px);border-color:rgba(200,255,77,.75);}
.card-lead .thumb{overflow:hidden;aspect-ratio:16/9;background:var(--c-paper-2);}
.card-lead .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.card-lead:hover .thumb img{transform:scale(1.04);}
.card-lead .body{padding:22px 24px 26px;}
.badge-cat{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  padding:3px 9px;border-radius:4px;
  border:1px solid var(--c-amber);color:#7a5215;background:rgba(232,163,61,.12);
}
.badge-cat.neon{border-color:var(--c-brand-soft);color:var(--c-brand-soft);background:rgba(20,90,74,.08);}
.card-lead h3{font-size:22px;font-weight:750;line-height:1.4;margin:14px 0 10px;color:var(--c-text);}
.card-lead h3 a{color:inherit;}
.card-lead h3 a:hover{color:var(--c-brand-soft);}
.card-lead .excerpt{font-size:15px;color:var(--c-muted);line-height:1.8;}
.meta-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);
}
.meta-time{font-family:var(--mono);font-size:13px;color:var(--c-muted);letter-spacing:.02em;}
.mini-card{
  display:grid;grid-template-columns:72px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--c-line);
  transition:background var(--t);
}
.mini-card:first-child{padding-top:0;}
.mini-card:hover{background:rgba(200,255,77,.06);}
.mini-card .thumb{
  width:72px;height:72px;border-radius:10px;overflow:hidden;background:var(--c-paper-2);
}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.mini-card:hover .thumb img{transform:scale(1.05);}
.mini-card h4{font-size:16px;font-weight:650;line-height:1.5;margin-bottom:6px;}
.mini-card h4 a{color:var(--c-text);}
.mini-card h4 a:hover{color:var(--c-brand-soft);}
.mini-card .meta-time{font-size:12px;}
.news-empty{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:#fff;
}
.news-empty p{font-size:15px;color:var(--c-muted);}
.news-empty span{display:block;font-size:12px;letter-spacing:.12em;color:var(--c-muted);margin-top:8px;font-family:var(--mono);}
.news-empty .link-text{margin-top:18px;}

/* ============ 证言 ============ */
.voices{
  background:var(--c-ink-2);color:var(--c-text-inv);
  padding:clamp(48px,6vw,80px) 0;
  border-top:1px solid rgba(200,255,77,.25);
  border-bottom:1px solid rgba(200,255,77,.25);
}
.voice-quote{
  font-size:clamp(20px,2.4vw,28px);font-weight:650;line-height:1.6;
  color:#fff;max-width:38ch;margin:20px 0 22px;letter-spacing:-.01em;
}
.voice-author{font-family:var(--mono);font-size:13px;color:var(--c-muted-inv);letter-spacing:.06em;}
.voice-nav{display:flex;align-items:center;gap:16px;margin-top:28px;}
.vbtn{
  width:44px;height:44px;border-radius:10px;background:transparent;
  border:1px solid var(--c-line-inv);color:var(--c-text-inv);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.vbtn:hover{border-color:var(--c-neon);color:var(--c-neon);}
.voice-index{font-family:var(--mono);font-size:13px;color:var(--c-muted-inv);}
.voices-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line-inv);}
.voices-figure img{width:100%;height:100%;min-height:230px;object-fit:cover;}

/* ============ FAQ ============ */
.faq{padding:var(--sec-y) 0;background:var(--c-paper);}
.faq-head{max-width:640px;margin-bottom:44px;}
.faq-head h2{font-size:clamp(24px,3.2vw,40px);font-weight:750;line-height:1.25;margin:14px 0 16px;}
.faq-head p{color:var(--c-muted);font-size:15.5px;}
.faq .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--c-line);border-radius:0;
}
.faq .accordion-button{
  background:transparent;color:var(--c-text);font-size:17px;font-weight:600;
  padding:20px 40px 20px 0;box-shadow:none;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none;}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(200,255,77,.22);}
.faq .accordion-button::after{
  background-image:none;
  content:"+";font-family:var(--mono);font-size:22px;font-weight:400;
  width:22px;height:22px;line-height:1;display:flex;align-items:center;justify-content:center;
  color:var(--c-brand-soft);transition:transform var(--t);position:absolute;right:4px;
}
.faq .accordion-button:not(.collapsed)::after{content:"+";transform:rotate(45deg);color:var(--c-amber);}
.faq .accordion-body{padding:0 40px 24px 0;font-size:15.5px;line-height:1.85;color:var(--c-muted);}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:var(--c-ink);color:var(--c-text-inv);
  padding:var(--sec-y) 0 0;
  border-top:1px solid rgba(200,255,77,.4);
}
.cta-band h2{font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.2;color:#fff;margin:18px 0 18px;}
.cta-band .lead{color:var(--c-muted-inv);font-size:16px;max-width:46ch;}
.cta-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line-inv);
}
.cta-facts .cap{font-size:12px;letter-spacing:.14em;color:var(--c-muted-inv);font-family:var(--mono);}
.cta-facts .val{font-size:15.5px;margin-top:8px;color:var(--c-text-inv);}
.form-panel{
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-card);
  padding:clamp(24px,3vw,36px);
}
.form-panel h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:8px;}
.form-panel .hint{font-size:14px;color:var(--c-muted-inv);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:13px;letter-spacing:.06em;
  color:var(--c-muted-inv);margin-bottom:8px;
}
.field .form-control,.field .form-select{
  height:48px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line-inv);
  color:var(--c-text-inv);font-size:15px;padding:0 14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea.form-control{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field .form-control::placeholder,.field textarea.form-control::placeholder{color:rgba(155,168,162,.7);}
.field .form-control:focus,.field .form-select:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--c-neon);
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  color:#fff;
}
.field .form-select option{color:#101413;}
.form-note{font-size:12px;color:var(--c-muted-inv);margin-top:14px;line-height:1.7;}
.form-msg{font-size:14px;margin-top:14px;display:none;}
.form-msg.show{display:block;color:var(--c-neon);}
.cta-bottom{
  margin-top:clamp(48px,6vw,80px);
  border-top:1px solid var(--c-line-inv);
  padding:26px 0;
}
.copyright{
  font-size:12px;color:var(--c-muted-inv);font-family:var(--mono);letter-spacing:.04em;
}
.footer-links a{font-size:12px;color:var(--c-muted-inv);margin-left:18px;}
.footer-links a:hover{color:var(--c-neon);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:var(--c-muted-inv);padding:clamp(52px,6vw,80px) 0 0;border-top:1px solid rgba(200,255,77,.18);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:34ch;color:var(--c-muted-inv);}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--c-text-inv);font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14.5px;color:var(--c-muted-inv);}
.footer-col a:hover{color:var(--c-neon);}
.footer-col .txt{font-size:14.5px;color:var(--c-muted-inv);}
.footer-bottom{
  margin-top:clamp(40px,5vw,64px);
  border-top:1px solid var(--c-line-inv);
  padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12px;color:var(--c-muted-inv);font-family:var(--mono);letter-spacing:.04em;}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  width:44px;height:44px;border-radius:50%;
  background:var(--c-ink);color:var(--c-neon);
  border:1px solid rgba(200,255,77,.5);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:all var(--t);
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--c-brand-dark);}

/* ============ 滚动揭示 ============ */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s cubic-bezier(.22,.61,.36,1);}
.js .reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .stat-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .side-sticky{position:static;margin-bottom:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .cta-facts{grid-template-columns:1fr;gap:18px;}
  .voice-quote{max-width:none;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-inner{padding-left:16px;padding-right:16px;}
  body{font-size:16px;}
  .pain-item{grid-template-columns:64px 1fr;gap:16px;}
  .sol-item{grid-template-columns:34px 1fr;gap:14px;}
  .sol-icon{width:34px;height:34px;}
  .hero-actions .btn-primary-cta,.hero-actions .btn-ghost{width:100%;}
  .stat-grid{grid-template-columns:1fr;}
  .voices-figure{display:none;}
}
@media (max-width:575.98px){
  .hero{padding-top:70px;}
  .hero-facts{gap:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn-nav-cta{display:none;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .js .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-text-inv:#EDF1EC;
  --c-muted:#6F7C77;
  --c-muted-inv:#9BA8A2;
  --c-line:#E2E6DF;
  --c-line-inv:rgba(255,255,255,.10);
  --c-ok:#1F9D6B;
  --c-warn:#E4572E;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-badge:4px;
  --sec-y:clamp(64px,8vw,120px);
  --t:.22s cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 14px 34px -24px rgba(10,14,13,.28);
  --bs-body-color:#101413;
  --bs-body-bg:#F6F7F3;
  --bs-link-color:#0C3B32;
  --bs-link-hover-color:#145A4A;
  --bs-border-color:#E2E6DF;
  --bs-primary:#0C3B32;
  --bs-primary-rgb:12,59,50;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SF Mono",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  padding-top:76px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-soft);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.25;color:var(--c-text);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(200,255,77,.22);outline-offset:2px;border-color:var(--c-neon);}
.container{
  width:100%;
  max-width:1240px;
  padding-left:24px;
  padding-right:24px;
  margin:0 auto;
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:rgba(10,13,12,.96);
  border-bottom:1px solid var(--c-line-inv);
  transition:height var(--t),background var(--t),backdrop-filter var(--t);
  height:76px;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(10,13,12,.92);
  backdrop-filter:blur(10px);
}
.site-header::before{
  content:"";
  position:absolute;
  left:0;top:0;
  height:2px;
  width:0;
  background:var(--c-neon);
  transition:width .5s cubic-bezier(.22,.61,.36,1);
}
.site-header.is-scrolled::before{width:100%;}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:100%;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  color:var(--c-text-inv);
  white-space:nowrap;
}
.brand:hover{color:var(--c-text-inv);}
.brand-mark{
  font-family:var(--mono);
  font-size:15px;
  letter-spacing:.2em;
  color:var(--c-neon);
  text-transform:lowercase;
}
.brand-name{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:550;
  color:var(--c-muted-inv);
  padding:6px 2px;
  transition:color var(--t);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--c-neon);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--c-text-inv);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{
  color:var(--c-text-inv);
  text-shadow:0 0 12px rgba(200,255,77,.45);
}
.nav-link.active::after{transform:scaleX(1);}
.header-cta{display:flex;align-items:center;gap:12px;}
.btn-nav{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  background:var(--c-amber);
  color:var(--c-brand-dark);
  font-size:15px;
  font-weight:650;
  border:1px solid var(--c-amber);
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-nav:hover{
  background:var(--c-neon);
  border-color:var(--c-neon);
  color:var(--c-brand-dark);
  transform:translateY(-2px);
  box-shadow:0 0 18px rgba(200,255,77,.35);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line-inv);
  background:transparent;
  padding:0 11px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  background:var(--c-text-inv);
  border-radius:2px;
  transition:background var(--t);
}
.nav-toggle:hover span{background:var(--c-neon);}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-cta .btn-nav{display:none;}
}
@media (max-width:575.98px){
  .brand-name{font-size:16px;}
  .brand-mark{font-size:13px;}
}
.drawer{
  background:var(--c-ink);
  color:var(--c-text-inv);
  border-left:1px solid var(--c-line-inv);
  width:min(86vw,340px);
}
.drawer .offcanvas-header{
  border-bottom:1px solid var(--c-line-inv);
  padding:18px 20px;
}
.drawer .offcanvas-body{padding:20px;}
.drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-nav a{
  position:relative;
  padding:14px 12px 14px 18px;
  color:var(--c-text-inv);
  font-size:16px;
  font-weight:550;
  border-bottom:1px solid var(--c-line-inv);
}
.drawer-nav a::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:0;
  background:var(--c-neon);
  transition:height var(--t);
}
.drawer-nav a:hover::before,
.drawer-nav a.active::before{height:22px;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-neon);}
.drawer .btn-nav{width:100%;}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(10,13,12,.94) 0%,rgba(12,59,50,.78) 70%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  padding:clamp(44px,6vw,78px) 0 clamp(40px,5vw,66px);
  color:var(--c-text-inv);
}
.article-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,77,.55),transparent);
}
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted-inv);
  margin-bottom:20px;
}
.breadcrumb-line a{color:var(--c-muted-inv);}
.breadcrumb-line a:hover{color:var(--c-neon);}
.breadcrumb-line .current{color:var(--c-muted-inv);}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  padding:5px 12px;
  border:1px solid rgba(200,255,77,.45);
  color:var(--c-neon);
  border-radius:var(--r-badge);
  margin-bottom:18px;
}
.badge-cat::before{
  content:"";
  width:14px;height:3px;
  background:var(--c-neon);
  border-radius:2px;
}
.article-title{
  font-size:clamp(26px,3.6vw,44px);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.02em;
  color:var(--c-text-inv);
  max-width:940px;
}
.meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:22px;
  font-family:var(--mono);
  font-size:13px;
  color:var(--c-muted-inv);
}
.meta-line .dot{
  width:4px;height:4px;border-radius:50%;
  background:var(--c-neon);
  display:inline-block;
}

/* ---------- 正文区 ---------- */
.article-main{padding:var(--sec-y) 0;}
.article-cover{
  overflow:hidden;
  border-radius:var(--r-img);
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-card);
  margin-bottom:clamp(30px,4vw,48px);
}
.article-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--c-text);
  max-width:760px;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,28px);
  font-weight:750;
  margin:2em 0 .8em;
  padding-top:6px;
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";
  display:block;
  width:32px;height:3px;
  background:var(--c-neon);
  border-radius:2px;
  margin-bottom:14px;
}
.article-body h3{
  font-size:20px;
  font-weight:650;
  margin:1.7em 0 .7em;
}
.article-body h4{
  font-size:17.5px;
  font-weight:600;
  margin:1.5em 0 .6em;
  color:var(--c-brand);
}
.article-body a{
  color:var(--c-brand);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--c-brand-soft);}
.article-body strong{font-weight:700;color:var(--c-brand-dark);}
.article-body ul,
.article-body ol{
  margin:0 0 1.5em 1.4em;
  padding:0;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;padding-left:2px;}
.article-body blockquote{
  margin:1.8em 0;
  padding:18px 22px;
  border-left:3px solid var(--c-neon);
  background:var(--c-paper-2);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-brand-dark);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:12px;
  margin:28px auto;
  height:auto;
}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  text-align:center;
  font-size:13px;
  color:var(--c-muted);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:16px;
}
.article-body th,
.article-body td{
  border:0;
  border-bottom:1px solid var(--c-line);
  padding:12px 10px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  font-weight:650;
  color:var(--c-brand-dark);
  border-bottom-color:var(--c-brand);
}
.article-body hr{
  border:0;
  height:1px;
  background:var(--c-line);
  margin:2.4em 0;
}
.article-body code{
  font-family:var(--mono);
  font-size:.92em;
  background:var(--c-paper-2);
  padding:2px 6px;
  border-radius:4px;
}
.empty-state{
  max-width:760px;
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  padding:44px 28px;
  text-align:center;
  background:#fff;
}
.empty-title{
  font-size:19px;
  font-weight:700;
  color:var(--c-brand-dark);
  margin-bottom:10px;
}
.empty-desc{
  font-size:15px;
  color:var(--c-muted);
  margin-bottom:22px;
  line-height:1.8;
}

/* ---------- 侧栏 ---------- */
.side-sticky{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.side-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-card);
}
.side-head{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--c-muted);
  margin-bottom:18px;
}
.side-head::before{
  content:"";
  width:18px;height:2px;
  background:var(--c-neon);
}
.toc-list{
  display:flex;
  flex-direction:column;
  border-top:1px solid var(--c-line);
}
.toc-list a{
  display:block;
  padding:12px 2px;
  font-size:15px;
  color:var(--c-text);
  border-bottom:1px solid var(--c-line);
  line-height:1.6;
  transition:color var(--t),padding-left var(--t);
}
.toc-list a:hover{
  color:var(--c-brand);
  padding-left:6px;
}
.mini-list{display:flex;flex-direction:column;gap:16px;}
.mini-card{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding-bottom:16px;
  border-bottom:1px solid var(--c-line);
}
.mini-card:last-child{border-bottom:0;padding-bottom:0;}
.mini-thumb{
  flex:0 0 72px;
  width:72px;height:72px;
  border-radius:10px;
  overflow:hidden;
  border:1px solid var(--c-line);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.mini-card:hover .mini-thumb img{transform:scale(1.06);}
.mini-title{
  font-size:15px;
  font-weight:600;
  line-height:1.55;
  color:var(--c-text);
  margin-bottom:6px;
}
.mini-card:hover .mini-title{color:var(--c-brand);}
.mini-meta{
  font-family:var(--mono);
  font-size:12px;
  color:var(--c-muted);
}
.side-note{
  background:var(--c-ink);
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-card);
  padding:24px;
  color:var(--c-text-inv);
}
.side-note h3{
  font-size:17px;
  color:var(--c-text-inv);
  font-weight:700;
  margin-bottom:10px;
}
.side-note p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-muted-inv);
  margin-bottom:18px;
}

/* ---------- 标签与返回 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--c-line);
}
.tag-row .label{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--c-muted);
  font-weight:600;
}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12.5px;
  padding:6px 13px;
  border:1px solid var(--c-line);
  border-radius:var(--r-badge);
  background:#fff;
  color:var(--c-muted);
  transition:border-color var(--t),color var(--t);
}
.tag:hover{border-color:var(--c-neon);color:var(--c-brand);}
.back-row{margin-top:30px;}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--c-brand);
  border-bottom:1px solid rgba(12,59,50,.35);
  padding-bottom:3px;
}
.back-link:hover{border-bottom-color:var(--c-neon);color:var(--c-brand-soft);}

/* ---------- 行动区 ---------- */
.cta-band{
  position:relative;
  background:var(--c-ink);
  color:var(--c-text-inv);
  padding:clamp(56px,7vw,96px) 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,rgba(200,255,77,0),rgba(200,255,77,.9),rgba(200,255,77,0));
}
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:44px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(23px,3vw,36px);
  color:var(--c-text-inv);
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:14px;
}
.cta-band p{
  font-size:15.5px;
  color:var(--c-muted-inv);
  line-height:1.85;
  max-width:600px;
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:50px;
  padding:0 26px;
  border-radius:var(--r-btn);
  background:var(--c-amber);
  color:var(--c-brand-dark);
  font-size:16px;
  font-weight:650;
  border:1px solid var(--c-amber);
  transition:background var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-main:hover{
  background:var(--c-neon);
  border-color:var(--c-neon);
  color:var(--c-brand-dark);
  transform:translateY(-2px);
  box-shadow:0 0 22px rgba(200,255,77,.35);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.28);
  background:transparent;
  color:var(--c-text-inv);
  font-size:15.5px;
  font-weight:600;
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-ghost:hover{
  border-color:var(--c-neon);
  color:var(--c-neon);
  transform:translateY(-2px);
}
.cta-facts{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:26px;
  padding-top:24px;
  border-top:1px solid var(--c-line-inv);
}
.cta-facts .fact strong{
  display:block;
  font-family:var(--mono);
  font-size:16px;
  color:var(--c-neon);
  font-weight:600;
  margin-bottom:4px;
}
.cta-facts .fact span{
  font-size:13px;
  color:var(--c-muted-inv);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:var(--c-muted-inv);
  padding:clamp(48px,6vw,76px) 0 0;
  border-top:1px solid rgba(200,255,77,.35);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--c-muted-inv);
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:var(--c-text-inv);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,
.footer-col .txt{
  font-size:14.5px;
  color:var(--c-muted-inv);
  transition:color var(--t);
}
.footer-col a:hover{color:var(--c-neon);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:20px 0 26px;
  border-top:1px solid var(--c-line-inv);
  font-size:12.5px;
  color:var(--c-muted-inv);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:var(--c-muted-inv);font-size:12.5px;}
.footer-links a:hover{color:var(--c-neon);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:22px;bottom:22px;
  width:44px;height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--c-ink);
  border:1px solid rgba(200,255,77,.5);
  color:var(--c-neon);
  font-size:17px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background var(--t);
  z-index:1030;
  cursor:pointer;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-brand-dark);}

/* ---------- 揭示动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-in{opacity:1;transform:none;}

@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  body{padding-top:64px;}
  .article-main{padding:52px 0;}
  .side-sticky{position:static;margin-top:40px;}
  .cta-grid{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-body{font-size:16.5px;}
  .article-hero{padding:36px 0 34px;}
  .cta-facts{grid-template-columns:1fr;gap:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .article-title{font-size:25px;}
  .btn-main,.btn-ghost{width:100%;}
  .to-top{right:14px;bottom:14px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category1 */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-muted:#6F7C77;
  --c-line:#E2E6DF;
  --c-line-dark:rgba(255,255,255,.10);
  --t-light:#EDF1EC;
  --t-muted-dark:#9BA8A2;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-badge:4px;
  --sec-y:clamp(64px,8vw,120px);
  --t:.22s cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 14px 34px -24px rgba(10,14,13,.28);
  --mono:ui-monospace,"SF Mono",Consolas,"Courier New",monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  --bs-primary:#0C3B32;
  --bs-body-color:#101413;
  --bs-body-bg:#F6F7F3;
  --bs-link-color:#0C3B32;
  --bs-link-hover-color:#145A4A;
  --bs-border-color:#E2E6DF;
  --bs-font-sans-serif:var(--sans);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--c-brand-soft);}
ul{list-style:none;padding:0;margin:0;}
h1,h2,h3,h4{font-family:var(--sans);color:inherit;margin:0;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

.container{max-width:1240px;padding-left:24px;padding-right:24px;}
@media (max-width:767px){.container{padding-left:16px;padding-right:16px;}}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  border-color:var(--c-brand-soft);
  border-radius:10px;
}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:2000;
  background:var(--c-neon);color:var(--c-brand-dark);
  padding:10px 18px;border-radius:0 0 10px 0;font-weight:700;
}
.skip-link:focus{left:0;}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(10,13,12,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line-dark);
  transition:background-color var(--t),border-color var(--t);
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,.15));
  transition:width .38s cubic-bezier(.22,.61,.36,1);
}
.site-header.is-scrolled::before{width:100%;}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:76px;transition:height var(--t);
}
.site-header.is-scrolled .nav-wrap{height:60px;}

.brand{display:inline-flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.brand-mark{
  font-family:var(--mono);font-size:15px;font-weight:700;
  letter-spacing:.2em;color:var(--c-neon);
}
.brand-name{font-size:18px;font-weight:800;color:var(--t-light);letter-spacing:.01em;}
.brand:hover .brand-name{color:var(--c-neon);}

.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:550;color:var(--t-muted-dark);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
  background:var(--c-neon);transform:translateX(-50%);
  transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--t-light);}
.nav-link:hover::after{width:100%;}
.nav-link.active{
  color:var(--t-light);
  text-shadow:0 0 12px rgba(200,255,77,.45);
}
.nav-link.active::after{width:100%;}

.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.btn-nav{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 20px;
  background:var(--c-amber);color:var(--c-brand-dark);
  font-size:15px;font-weight:650;border-radius:var(--r-btn);border:1px solid transparent;
  transition:background-color var(--t),color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-nav:hover{
  background:var(--c-neon);color:var(--c-brand-dark);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(200,255,77,.35),0 12px 26px -14px rgba(200,255,77,.55);
}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line-dark);
  border-radius:10px;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;transition:border-color var(--t);
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--t-light);transition:background-color var(--t);}
.nav-toggle:hover{border-color:rgba(200,255,77,.5);}
.nav-toggle:hover span{background:var(--c-neon);}

/* ============ 抽屉导航 ============ */
.offcanvas.nav-drawer{
  background:var(--c-ink);color:var(--t-light);
  width:306px;border-left:1px solid var(--c-line-dark);
}
.nav-drawer .offcanvas-header{
  border-bottom:1px solid var(--c-line-dark);padding:20px 22px;
}
.nav-drawer .offcanvas-title{
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--c-neon);font-weight:600;text-transform:uppercase;
}
.nav-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;
}
.nav-drawer .offcanvas-body{padding:14px 22px 28px;}
.drawer-link{
  display:block;padding:15px 0 15px 0;
  border-bottom:1px solid var(--c-line-dark);
  color:var(--t-muted-dark);font-size:16px;font-weight:550;
}
.drawer-link:hover{color:var(--t-light);}
.drawer-link.active{
  color:var(--c-neon);border-left:2px solid var(--c-neon);
  padding-left:12px;
}
.drawer-cta{
  display:flex;align-items:center;justify-content:center;
  margin-top:24px;min-height:48px;border-radius:var(--r-btn);
  background:var(--c-amber);color:var(--c-brand-dark);font-weight:650;
}
.drawer-cta:hover{background:var(--c-neon);color:var(--c-brand-dark);}

/* ============ 通用元件 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--c-brand-soft);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--c-neon);flex:0 0 auto;}
.eyebrow.on-dark{color:var(--c-neon);}

.h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;
}
.h2{
  font-size:clamp(24px,3.2vw,40px);font-weight:750;line-height:1.25;
}
.h3{font-size:21px;font-weight:650;line-height:1.35;}
.sub{font-size:16.5px;line-height:1.85;color:var(--c-muted);}
.lead-dark{color:var(--t-muted-dark);}

.section{padding:var(--sec-y) 0;}
.section-tight{padding:clamp(48px,5vw,72px) 0;}
.section-paper2{background:var(--c-paper-2);}
.section-dark{background:var(--c-ink);color:var(--t-light);}
.section-ink2{background:var(--c-ink-2);color:var(--t-light);}

.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,48px);}
.section-head .h2{margin-bottom:14px;}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 26px;
  background:var(--c-amber);color:var(--c-brand-dark);
  font-size:16px;font-weight:650;border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background-color var(--t),color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-main:hover{
  background:var(--c-neon);color:var(--c-brand-dark);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(200,255,77,.4),0 14px 30px -16px rgba(200,255,77,.6);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 24px;
  background:transparent;border:1px solid rgba(255,255,255,.28);
  color:var(--t-light);font-size:16px;font-weight:550;border-radius:var(--r-btn);
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-ghost:hover{border-color:var(--c-neon);color:var(--c-neon);transform:translateY(-2px);}
.btn-outline-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 24px;border:1px solid rgba(12,59,50,.35);
  color:var(--c-brand);font-size:16px;font-weight:550;border-radius:var(--r-btn);
  background:transparent;
  transition:border-color var(--t),color var(--t),background-color var(--t),transform var(--t);
}
.btn-outline-ink:hover{
  border-color:var(--c-brand);background:rgba(12,59,50,.05);transform:translateY(-2px);
}

.badge-tag{
  display:inline-block;font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.08em;padding:4px 10px;border-radius:var(--r-badge);
  border:1px solid var(--c-amber);color:#8A5B12;background:rgba(232,163,61,.10);
}
.badge-tag.on-dark{
  border-color:var(--c-neon);color:var(--c-neon);background:rgba(200,255,77,.08);
}

.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;color:var(--c-brand);
  border-bottom:1px solid rgba(12,59,50,.4);
  padding-bottom:3px;
}
.text-link:hover{color:var(--c-brand-soft);border-color:var(--c-brand-soft);}
.text-link.on-dark{color:var(--c-neon);border-color:rgba(200,255,77,.5);}
.text-link.on-dark:hover{color:#fff;border-color:#fff;}

.hairline{height:1px;width:100%;background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,0));}

.crumbs{
  display:flex;align-items:center;gap:10px;
  font-size:13px;font-family:var(--mono);letter-spacing:.04em;
  color:var(--t-muted-dark);
}
.crumbs a{color:var(--t-muted-dark);}
.crumbs a:hover{color:var(--c-neon);}
.crumbs .sep{opacity:.5;}
.crumbs .now{color:var(--t-muted-dark);opacity:.85;}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  min-height:42vh;
  display:flex;align-items:flex-end;
  padding:132px 0 56px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,13,12,.95) 0%,rgba(10,13,12,.84) 46%,rgba(12,59,50,.58) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero .crumbs{margin-bottom:26px;}
.page-hero .h1{color:#fff;max-width:15em;margin-bottom:18px;}
.page-hero .sub{color:rgba(237,241,236,.78);max-width:44em;font-size:16.5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:38px;margin-top:36px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-fact .num{
  font-family:var(--mono);font-size:30px;font-weight:700;
  color:var(--c-neon);line-height:1.15;
}
.hero-fact .lbl{font-size:12.5px;color:rgba(237,241,236,.66);letter-spacing:.06em;margin-top:4px;}

/* ============ 锚点目录 ============ */
.anchor-bar{
  background:var(--c-paper);border-bottom:1px solid var(--c-line);
  position:relative;z-index:3;
}
.anchor-inner{
  display:flex;gap:30px;overflow-x:auto;scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  position:relative;flex:0 0 auto;
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;
  color:var(--c-muted);padding:17px 0;white-space:nowrap;
}
.anchor-inner a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-neon);transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.anchor-inner a:hover{color:var(--c-brand);}
.anchor-inner a:hover::after{width:100%;}
.anchor-inner a.is-active{color:var(--c-brand);}
.anchor-inner a.is-active::after{width:100%;}

/* ============ 场馆卡片网格 ============ */
.facility-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.media-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.media-card:hover{
  transform:translateY(-3px);
  border-color:rgba(12,59,50,.34);
  box-shadow:0 20px 42px -26px rgba(10,14,13,.4);
}
.media-card .thumb{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--c-paper-2);
}
.media-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .42s cubic-bezier(.22,.61,.36,1);
}
.media-card:hover .thumb img{transform:scale(1.04);}
.media-card .card-body{padding:20px 22px 22px;}
.media-card .badge-tag{margin-bottom:12px;}
.media-card .h3{margin-bottom:10px;}
.media-card .desc{font-size:15px;color:var(--c-muted);line-height:1.8;margin-bottom:16px;}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:14px;border-top:1px solid var(--c-line);
  font-family:var(--mono);font-size:13px;color:var(--c-muted);
}
.card-meta .arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;}
.media-card:hover .card-meta .arrow{color:var(--c-brand-soft);}

/* ============ 规格行式列表 ============ */
.spec-list{border-top:1px solid var(--c-line);}
.spec-row{
  display:grid;grid-template-columns:180px 1fr 150px;
  gap:26px;align-items:baseline;
  padding:22px 4px;border-bottom:1px solid var(--c-line);
  transition:background-color var(--t);
}
.spec-row:hover{background:rgba(200,255,77,.06);}
.spec-key{
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--c-muted);
}
.spec-desc{font-size:16px;color:#3D4A46;line-height:1.8;}
.spec-val{
  font-family:var(--mono);font-size:15px;font-weight:600;
  color:var(--c-brand);text-align:right;
}

/* ============ 流程 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,64px);align-items:start;}
.sticky-col{position:sticky;top:120px;}
.step-list{border-top:1px solid var(--c-line-dark);}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:22px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--c-line-dark);
}
.step .num{
  font-family:var(--mono);font-size:26px;font-weight:700;
  color:var(--c-neon);line-height:1.2;
}
.step h3{font-size:18px;font-weight:650;color:var(--t-light);margin-bottom:8px;}
.step p{font-size:15px;color:var(--t-muted-dark);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-wrap .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--c-line);
}
.faq-wrap .accordion-item:first-child{border-top:1px solid var(--c-line);}
.faq-wrap .accordion-button{
  position:relative;
  background:transparent;box-shadow:none;color:var(--c-text);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 44px 22px 0;border-radius:0 !important;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none;}
.faq-wrap .accordion-button:focus{box-shadow:0 0 0 3px rgba(200,255,77,.22);}
.faq-wrap .accordion-button::after{display:none;}
.fx{
  position:absolute;right:0;top:50%;width:16px;height:16px;
  transform:translateY(-50%);
}
.fx::before,.fx::after{
  content:"";position:absolute;left:0;top:50%;width:16px;height:1.5px;
  background:var(--c-brand-soft);border-radius:2px;
  transition:transform var(--t),background-color var(--t);
}
.fx::before{transform:translateY(-50%) rotate(90deg);}
.fx::after{transform:translateY(-50%) rotate(0deg);}
.accordion-button:not(.collapsed) .fx::before{transform:translateY(-50%) rotate(0deg);background:var(--c-brand);}
.faq-wrap .accordion-body{
  padding:0 44px 24px 0;font-size:15.5px;line-height:1.85;color:var(--c-muted);
}

/* ============ CTA 与表单 ============ */
.entry-section{position:relative;overflow:hidden;}
.entry-section::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,.05));
}
.entry-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,60px);align-items:start;}
.entry-points{margin-top:28px;display:grid;gap:14px;}
.entry-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--t-muted-dark);line-height:1.75;
}
.entry-points i{color:var(--c-neon);margin-top:5px;font-size:13px;}

.form-panel{
  background:rgba(255,255,255,.025);
  border:1px solid var(--c-line-dark);
  border-radius:14px;padding:clamp(24px,3vw,36px);
}
.form-panel .h3{color:var(--t-light);margin-bottom:8px;}
.form-panel .tip{font-size:14.5px;color:var(--t-muted-dark);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:13px;letter-spacing:.06em;
  color:var(--t-muted-dark);margin-bottom:8px;
}
.form-control,.form-select{
  width:100%;height:48px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:10px;color:var(--t-light);
  font-size:15.5px;font-family:var(--sans);
  padding:0 14px;transition:border-color var(--t),background-color var(--t),box-shadow var(--t);
}
textarea.form-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-select{appearance:none;background-image:none;}
.form-select option{color:#101413;}
.form-control::placeholder{color:rgba(155,168,162,.7);}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--c-neon);
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  color:var(--t-light);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-note{font-size:12px;color:rgba(155,168,162,.85);margin-top:14px;line-height:1.7;}
.form-hint{
  margin-top:14px;font-size:14px;color:var(--c-neon);min-height:22px;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--c-ink);color:var(--t-muted-dark);
  padding:clamp(48px,6vw,72px) 0 24px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,77,.75),rgba(200,255,77,.05));
}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--t-muted-dark);max-width:34em;}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--t-light);margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--t-muted-dark);font-size:14.5px;}
.footer-col a:hover{color:var(--c-neon);}
.footer-col .txt{font-size:14.5px;color:var(--t-muted-dark);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-top:40px;padding-top:20px;
  border-top:1px solid var(--c-line-dark);
  font-size:12px;color:rgba(155,168,162,.8);
}
.footer-links{display:flex;gap:20px;}
.footer-links a{color:rgba(155,168,162,.85);font-size:12.5px;}
.footer-links a:hover{color:var(--c-neon);}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:22px;bottom:22px;z-index:1040;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,13,12,.92);border:1px solid rgba(200,255,77,.5);
  color:var(--c-neon);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),visibility var(--t),transform var(--t),background-color var(--t);
}
.back-top.is-on{opacity:1;visibility:visible;transform:none;}
.back-top:hover{background:var(--c-neon);color:var(--c-brand-dark);}

/* ============ 滚动揭示 ============ */
.reveal{
  opacity:0;transform:translateY(16px);
  transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .spec-row{grid-template-columns:150px 1fr 130px;gap:20px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .btn-nav{display:none;}
  .split,.entry-grid{grid-template-columns:1fr;}
  .sticky-col{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero{padding-top:118px;min-height:38vh;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .facility-grid{grid-template-columns:1fr;}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:20px 2px;}
  .spec-val{text-align:left;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-facts{gap:26px;}
  .hero-fact .num{font-size:26px;}
  .form-row{grid-template-columns:1fr;}
  .entry-points{margin-top:22px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .page-hero .h1{font-size:clamp(26px,7vw,34px);}
  .anchor-inner{gap:22px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category2 */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-text-inv:#EDF1EC;
  --c-muted:#6F7C77;
  --c-muted-inv:#9BA8A2;
  --c-line:#E2E6DF;
  --c-line-inv:rgba(255,255,255,.10);
  --c-success:#1F9D6B;
  --c-warn:#E4572E;

  --r-card:14px;
  --r-lg:16px;
  --r-btn:10px;
  --r-badge:4px;

  --t:.22s cubic-bezier(.22,.61,.36,1);
  --sec-y:clamp(64px,8vw,120px);
  --shadow-card:0 14px 34px -24px rgba(10,14,13,.28);

  --bs-body-color:#101413;
  --bs-body-bg:#F6F7F3;
  --bs-link-color:#0C3B32;
  --bs-link-hover-color:#145A4A;
  --bs-border-color:#E2E6DF;
  --bs-primary:#0C3B32;
  --bs-primary-rgb:12,59,50;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t),opacity var(--t);}
a:hover{color:var(--c-brand-soft);}
button{font-family:inherit;}
ul{list-style:none;margin:0;padding:0;}

h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-0.01em;line-height:1.25;margin:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

.mono{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}

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

:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  border-color:var(--c-neon)!important;
  border-radius:var(--r-btn);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1050;
  background:rgba(10,13,12,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line-inv);
  transition:background-color var(--t),height var(--t);
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;left:0;
  height:2px;
  width:0;
  background:var(--c-neon);
  transition:width .5s cubic-bezier(.22,.61,.36,1);
}
.site-header.scrolled::before{width:100%;}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height var(--t);
}
.site-header.scrolled .header-inner{height:60px;}

.brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  flex-shrink:0;
}
.brand .brand-mark{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:15px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--c-neon);
  text-transform:lowercase;
}
.brand .brand-name{
  font-size:18px;
  font-weight:800;
  color:var(--c-text-inv);
  letter-spacing:-0.01em;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  justify-content:center;
}
.nav-links .nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  font-weight:550;
  color:#C7D0CB;
  border-radius:8px;
  white-space:nowrap;
}
.nav-links .nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:0;height:2px;
  background:var(--c-neon);
  transform:translateX(-50%);
  transition:width var(--t);
}
.nav-links .nav-link:hover{color:#EDF1EC;}
.nav-links .nav-link:hover::after{width:56%;}
.nav-links .nav-link.active{color:var(--c-text-inv);}
.nav-links .nav-link.active::after{width:56%;}
.nav-links .nav-link.active{text-shadow:0 0 12px rgba(200,255,77,.45);}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  font-size:15px;
  font-weight:650;
  color:var(--c-brand-dark);
  background:var(--c-amber);
  border:1px solid var(--c-amber);
  border-radius:var(--r-btn);
  transition:background-color var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-cta:hover{
  background:var(--c-neon);
  border-color:var(--c-neon);
  color:var(--c-brand-dark);
  transform:translateY(-2px);
  box-shadow:0 0 22px rgba(200,255,77,.28);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-btn);
  color:var(--c-text-inv);
  font-size:17px;
}

/* offcanvas 移动菜单 */
.offcanvas.dark-offcanvas{
  background:var(--c-ink-2);
  color:var(--c-text-inv);
  border-left:1px solid var(--c-line-inv);
  width:300px;
}
.dark-offcanvas .offcanvas-header{border-bottom:1px solid var(--c-line-inv);padding:20px 22px;}
.dark-offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75;}
.dark-offcanvas .offcanvas-body{padding:18px 0;}
.dark-offcanvas .m-nav a{
  display:block;
  padding:14px 22px;
  font-size:16px;
  font-weight:600;
  color:#C7D0CB;
  border-left:3px solid transparent;
}
.dark-offcanvas .m-nav a:hover{color:var(--c-neon);}
.dark-offcanvas .m-nav a.active{
  color:var(--c-text-inv);
  border-left-color:var(--c-neon);
  background:rgba(200,255,77,.06);
}
.dark-offcanvas .m-cta{margin:20px 22px 0;width:calc(100% - 44px);}

/* ============ 页头条 ============ */
.page-head{
  position:relative;
  padding:calc(76px + clamp(48px,6vw,84px)) 0 clamp(36px,4.5vw,56px);
  background:var(--c-ink);
  color:var(--c-text-inv);
  border-bottom:1px solid var(--c-line-inv);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(12,59,50,.85) 0%,rgba(10,13,12,0) 68%);
  pointer-events:none;
}
.page-head .head-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(28px,4vw,56px);
  align-items:end;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--c-neon);
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;
  background:var(--c-neon);
  display:inline-block;
}
.page-head h1{
  font-size:clamp(32px,4.6vw,56px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-0.02em;
  color:var(--c-text-inv);
  margin-bottom:20px;
}
.page-head .lead-line{
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-muted-inv);
  max-width:640px;
}
.head-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:12.5px;
  color:var(--c-muted-inv);
}
.head-meta span{display:inline-flex;align-items:center;gap:8px;}
.head-meta i{color:var(--c-neon);font-size:12px;}

.filter-panel{
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-card);
  padding:24px;
  background:rgba(255,255,255,.02);
}
.filter-panel h2{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-muted-inv);
  margin-bottom:16px;
}
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;}
.filter-tags a{
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 15px;
  font-size:13.5px;
  font-weight:600;
  color:#C7D0CB;
  border:1px solid var(--c-line-inv);
  border-radius:999px;
  background:transparent;
}
.filter-tags a:hover{color:var(--c-neon);border-color:rgba(200,255,77,.55);}
.filter-tags a.is-on{
  color:var(--c-brand-dark);
  background:var(--c-neon);
  border-color:var(--c-neon);
}

.nav-hairline{
  height:1px;
  width:100%;
  background:linear-gradient(90deg,var(--c-neon) 0%,rgba(200,255,77,.15) 42%,rgba(255,255,255,.06) 100%);
}

/* ============ 主体：列表 ============ */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:clamp(48px,6vw,88px) 0;}

.breadcrumb-bar{
  background:var(--c-paper-2);
  border-bottom:1px solid var(--c-line);
}
.breadcrumb-bar .bc{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--c-muted);
  padding:14px 0;
  flex-wrap:wrap;
}
.breadcrumb-bar .bc a{color:var(--c-brand);}
.breadcrumb-bar .bc span.sep{color:#B9C2BD;}
.breadcrumb-bar .bc span.current{color:var(--c-muted);}

.list-layout{
  display:grid;
  grid-template-columns:3fr 9fr;
  gap:clamp(24px,3.4vw,48px);
  align-items:start;
}

.side-dir{
  position:sticky;
  top:92px;
  border-top:2px solid var(--c-neon);
  padding-top:20px;
}
.side-dir h2{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-muted);
  margin-bottom:16px;
}
.side-dir ul li a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 0;
  font-size:15px;
  font-weight:600;
  color:#2B3532;
  border-bottom:1px solid var(--c-line);
}
.side-dir ul li a .mono{font-size:12px;color:var(--c-muted);}
.side-dir ul li a:hover{color:var(--c-brand-soft);}
.side-dir ul li a.is-on{color:var(--c-brand);}
.side-dir ul li a.is-on .mono{color:var(--c-brand-soft);}

.side-note{
  margin-top:28px;
  border:1px dashed #C9D2CC;
  border-radius:var(--r-card);
  padding:20px;
  background:#FFFFFF;
}
.side-note h3{font-size:15px;font-weight:700;margin-bottom:10px;}
.side-note p{font-size:13.5px;line-height:1.8;color:var(--c-muted);margin-bottom:14px;}
.side-note .go{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:650;color:var(--c-brand);
  border-bottom:1px solid currentColor;padding-bottom:2px;
}

.list-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  padding-bottom:16px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:8px;
}
.list-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:750;
}
.list-head .count{
  font-size:13px;
  color:var(--c-muted);
}

.row-list{display:block;}
.row-item{
  display:grid;
  grid-template-columns:92px 1fr 44px;
  gap:20px;
  align-items:center;
  padding:22px 8px;
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),padding-left var(--t);
}
.row-item:hover{
  background:rgba(200,255,77,.07);
  padding-left:16px;
}
.row-date{
  font-size:13px;
  color:var(--c-muted);
  letter-spacing:.06em;
}
.row-date strong{
  display:block;
  font-size:19px;
  font-weight:700;
  color:var(--c-brand);
  letter-spacing:0;
  line-height:1.3;
}
.row-main h3{
  font-size:19px;
  font-weight:650;
  line-height:1.4;
  margin-bottom:6px;
}
.row-main h3 a{color:var(--c-text);}
.row-main h3 a:hover{color:var(--c-brand-soft);}
.row-main p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-muted);
  margin:0;
}
.row-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:10px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--r-badge);
  border:1px solid transparent;
}
.badge-amber{color:#8A5A0F;background:rgba(232,163,61,.14);border-color:rgba(232,163,61,.55);}
.badge-neon{color:#2E4A0B;background:rgba(200,255,77,.18);border-color:rgba(200,255,77,.65);}
.badge-line{color:var(--c-muted);background:transparent;border-color:var(--c-line);}

.row-arrow{
  width:44px;height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-line);
  border-radius:50%;
  color:var(--c-brand);
  font-size:14px;
  transition:transform var(--t),border-color var(--t),color var(--t);
}
.row-item:hover .row-arrow{
  transform:translateX(4px);
  border-color:var(--c-neon);
  color:var(--c-brand-soft);
}

/* 分页 */
.pager{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:40px;
  flex-wrap:wrap;
}
.pager a,.pager span{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:600;
  color:var(--c-text);
  border:1px solid var(--c-line);
  border-radius:8px;
  background:#FFFFFF;
}
.pager a:hover{border-color:var(--c-neon);color:var(--c-brand);}
.pager .is-active{
  background:var(--c-amber);
  border-color:var(--c-amber);
  color:var(--c-brand-dark);
}
.pager .pager-info{
  width:auto;height:auto;
  border:none;background:transparent;
  font-size:13px;color:var(--c-muted);
  padding-left:8px;
}

/* ============ 流程（深色区） ============ */
.flow-band{
  background:var(--c-ink);
  color:var(--c-text-inv);
  border-top:1px solid var(--c-line-inv);
  border-bottom:1px solid var(--c-line-inv);
}
.flow-head{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,3.4vw,48px);
  margin-bottom:clamp(32px,4vw,56px);
  align-items:end;
}
.flow-head h2{
  font-size:clamp(24px,3.2vw,40px);
  font-weight:750;
  line-height:1.25;
  color:var(--c-text-inv);
}
.flow-head .eyebrow{margin-bottom:14px;}
.flow-head p{color:var(--c-muted-inv);font-size:15.5px;line-height:1.9;}

.flow-steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--c-line-inv);
}
.flow-step{
  padding:28px 24px 28px 0;
  border-right:1px solid var(--c-line-inv);
  transition:border-color var(--t);
}
.flow-step:last-child{border-right:none;}
.flow-step:hover{border-color:rgba(200,255,77,.45);}
.flow-step .num{
  font-family:ui-monospace,"SF Mono",Consolas,monospace;
  font-size:34px;
  font-weight:700;
  color:var(--c-neon);
  line-height:1;
  display:block;
  margin-bottom:16px;
}
.flow-step h3{
  font-size:17.5px;
  font-weight:650;
  color:var(--c-text-inv);
  margin-bottom:10px;
}
.flow-step p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--c-muted-inv);
  margin:0;
}

/* ============ 重点活动 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:5fr 3.5fr 3.5fr;
  gap:22px;
}
.feature-grid .f-card:first-child{grid-row:span 2;}
.f-card{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:#FFFFFF;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  display:flex;
  flex-direction:column;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.f-card:hover{transform:translateY(-3px);border-color:rgba(200,255,77,.7);}
.f-thumb{overflow:hidden;position:relative;}
.f-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.22,.61,.36,1);}
.f-card:hover .f-thumb img{transform:scale(1.04);}
.f-card.big .f-thumb{aspect-ratio:16/9;}
.f-card.sm .f-thumb{aspect-ratio:16/10;}
.f-body{padding:18px;flex:1;display:flex;flex-direction:column;gap:8px;}
.f-body h3{font-size:19px;font-weight:650;line-height:1.4;}
.f-card.sm .f-body h3{font-size:16.5px;}
.f-body p{font-size:14.5px;color:var(--c-muted);line-height:1.8;margin:0;}
.f-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:12px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-muted);
}
.f-meta a{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:650;color:var(--c-brand);
}
.f-meta a:hover{color:var(--c-brand-soft);}

/* ============ 通用板块头 ============ */
.sec-head{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:clamp(20px,3vw,40px);
  align-items:end;
  margin-bottom:clamp(28px,3.6vw,48px);
}
.sec-head h2{font-size:clamp(24px,3.2vw,40px);font-weight:750;}
.sec-head p{font-size:15.5px;color:var(--c-muted);line-height:1.9;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--c-line);
  border-radius:0!important;
}
.accordion-button{
  background:transparent!important;
  color:var(--c-text)!important;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  padding:22px 44px 22px 0;
  border-radius:0!important;
  box-shadow:none!important;
  position:relative;
}
.accordion-button::after{
  display:none;
}
.accordion-button .plus{
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%) rotate(0deg);
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:50%;
  font-size:14px;
  color:var(--c-brand);
  transition:transform var(--t),border-color var(--t);
}
.accordion-button:not(.collapsed){color:var(--c-brand)!important;}
.accordion-button:not(.collapsed) .plus{
  transform:translateY(-50%) rotate(90deg);
  border-color:var(--c-neon);
}
.accordion-body{
  padding:0 44px 24px 0;
  font-size:15.5px;
  line-height:1.85;
  color:var(--c-muted);
}

/* ============ CTA / 表单 ============ */
.cta-band{
  background:var(--c-ink-2);
  color:var(--c-text-inv);
  position:relative;
}
.cta-band::before{
  content:"";
  position:absolute;top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-neon) 0%,rgba(200,255,77,.25) 55%,rgba(255,255,255,.05) 100%);
}
.cta-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(28px,4vw,64px);
  align-items:start;
}
.cta-grid h2{
  font-size:clamp(24px,3.2vw,40px);
  font-weight:750;
  color:var(--c-text-inv);
  margin-bottom:18px;
}
.cta-grid .cta-desc{
  font-size:15.5px;
  color:var(--c-muted-inv);
  line-height:1.9;
  margin-bottom:28px;
}
.cta-info{
  display:grid;
  gap:14px;
  border-top:1px solid var(--c-line-inv);
  padding-top:22px;
}
.cta-info li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:14.5px;
  color:var(--c-muted-inv);
  line-height:1.8;
}
.cta-info i{color:var(--c-neon);font-size:13px;margin-top:6px;width:16px;}

.form-panel{
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  padding:clamp(24px,3vw,36px);
}
.form-panel h3{
  font-size:19px;
  font-weight:700;
  color:var(--c-text-inv);
  margin-bottom:8px;
}
.form-panel .form-hint{
  font-size:13.5px;
  color:var(--c-muted-inv);
  margin-bottom:22px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:#C7D0CB;
  margin-bottom:8px;
}
.form-control,.form-select{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  font-size:15px;
  color:var(--c-text-inv);
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-btn);
  transition:border-color var(--t),background-color var(--t),box-shadow var(--t);
}
.form-control::placeholder{color:#7E8A85;}
.form-select option{color:#101413;background:#FFFFFF;}
.form-control:focus,.form-select:focus{
  color:var(--c-text-inv);
  background:rgba(255,255,255,.06);
  border-color:var(--c-neon);
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
}
textarea.form-control{min-height:112px;resize:vertical;line-height:1.8;}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.btn-primary-solid{
  width:100%;
  min-height:50px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-size:16px;
  font-weight:650;
  color:var(--c-brand-dark);
  background:var(--c-amber);
  border:1px solid var(--c-amber);
  border-radius:var(--r-btn);
  transition:background-color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-primary-solid:hover{
  background:var(--c-neon);
  border-color:var(--c-neon);
  transform:translateY(-2px);
  box-shadow:0 0 24px rgba(200,255,77,.3);
  color:var(--c-brand-dark);
}
.privacy-note{
  margin-top:14px;
  font-size:12px;
  color:#7E8A85;
  line-height:1.7;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:var(--c-muted-inv);
  position:relative;
  padding-top:clamp(48px,6vw,80px);
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,var(--c-neon) 0%,rgba(200,255,77,.2) 40%,rgba(255,255,255,.06) 100%);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:clamp(36px,4vw,56px);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{font-size:14px;}
.footer-brand .brand-name{font-size:17px;}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:var(--c-muted-inv);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--c-text-inv);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,
.footer-col ul li .txt{
  font-size:14px;
  color:var(--c-muted-inv);
  line-height:1.7;
}
.footer-col ul li a:hover{color:var(--c-neon);}
.footer-bottom{
  border-top:1px solid var(--c-line-inv);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:#7E8A85;margin:0;}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-links a{font-size:12.5px;color:#7E8A85;}
.footer-links a:hover{color:var(--c-neon);}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:22px;bottom:22px;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--c-ink-2);
  border:1px solid var(--c-neon);
  color:var(--c-neon);
  font-size:15px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-neon);color:var(--c-brand-dark);}

/* 滚动揭示 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links .nav-link{padding:10px 10px;font-size:14.5px;}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .feature-grid .f-card:first-child{grid-column:span 2;grid-row:auto;}
}

@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-cta{display:none;}
  .page-head .head-grid{grid-template-columns:1fr;align-items:start;}
  .list-layout{grid-template-columns:1fr;}
  .side-dir{position:static;margin-bottom:8px;}
  .flow-head{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .sec-head{grid-template-columns:1fr;}
  .flow-steps{grid-template-columns:1fr 1fr;}
  .flow-step:nth-child(2){border-right:none;}
  .flow-step:nth-child(1),.flow-step:nth-child(2){border-bottom:1px solid var(--c-line-inv);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:span 2;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .header-inner{height:64px;}
  .brand .brand-name{font-size:16px;}
  .page-head{padding-top:calc(64px + 44px);}
  .row-item{grid-template-columns:72px 1fr 38px;gap:14px;padding:18px 4px;}
  .row-date strong{font-size:17px;}
  .row-main h3{font-size:16.5px;}
  .row-arrow{width:38px;height:38px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand{grid-column:span 1;}
  .form-row{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-grid .f-card:first-child{grid-column:span 1;}
}

@media (max-width:575px){
  .flow-steps{grid-template-columns:1fr;}
  .flow-step{border-right:none;border-bottom:1px solid var(--c-line-inv);padding-right:0;}
  .btn-cta{width:100%;}
  .filter-tags a{flex:1 1 calc(50% - 10px);justify-content:center;}
  .btn-primary-solid{min-height:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

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

/* roulang page: category3 */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-text-inv:#EDF1EC;
  --c-muted:#6F7C77;
  --c-muted-inv:#9BA8A2;
  --c-line:#E2E6DF;
  --c-line-inv:rgba(255,255,255,.10);
  --c-ok:#1F9D6B;
  --c-warn:#E4572E;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --sec-y:clamp(64px,8vw,120px);
  --t:.22s cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 14px 34px -24px rgba(10,14,13,.28);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;
  --nav-h:76px;

  --bs-body-color:#101413;
  --bs-body-bg:#F6F7F3;
  --bs-link-color:#145A4A;
  --bs-link-hover-color:#0C3B32;
  --bs-border-color:#E2E6DF;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-border-radius:10px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-brand-soft);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
a:hover{color:var(--c-brand)}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-0.01em;line-height:1.22}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.accordion-button:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(200,255,77,.22);
  border-color:var(--c-neon);
}
::selection{background:var(--c-neon);color:#072722}

.container,.container-fluid{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (max-width:767px){
  .container,.container-fluid{padding-left:16px;padding-right:16px}
}

/* ============ 顶部导航 ============ */
.site-nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1035;
  background:rgba(10,13,12,.92);
  border-bottom:1px solid var(--c-line-inv);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background var(--t);
}
.nav-progress{
  position:absolute;top:0;left:0;
  height:2px;width:0;
  background:linear-gradient(90deg,var(--c-neon),var(--c-amber));
  transition:width .32s cubic-bezier(.22,.61,.36,1);
  display:block;
}
.site-nav.is-scrolled .nav-progress{width:100%}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:var(--nav-h);
  transition:height var(--t);
}
.site-nav.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:baseline;gap:8px;flex-shrink:0}
.brand-mark{
  font-family:var(--font-mono);
  font-size:16px;font-weight:700;
  letter-spacing:.2em;
  color:var(--c-neon);
  text-transform:lowercase;
}
.brand-name{
  font-size:18px;font-weight:800;
  color:var(--c-text-inv);
  letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  font-weight:550;
  color:rgba(237,241,236,.76);
  white-space:nowrap;
  transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;bottom:1px;left:50%;right:50%;
  height:2px;background:var(--c-neon);
  transition:left var(--t),right var(--t);
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{left:13px;right:13px}
.nav-link.active{
  color:var(--c-text-inv);
  text-shadow:0 0 12px rgba(200,255,77,.45);
}
.nav-link.active::after{left:13px;right:13px}
.nav-actions{display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-weight:650;
  font-size:15px;
  line-height:1;
  padding:.78rem 1.35rem;
  min-height:46px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-amber{background:var(--c-amber);color:#072722;border-color:var(--c-amber)}
.btn-amber:hover{
  background:var(--c-neon);border-color:var(--c-neon);color:#072722;
  transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(200,255,77,.16),0 12px 26px -14px rgba(200,255,77,.75);
}
.btn-ghost{background:transparent;color:var(--c-text-inv);border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:var(--c-neon);color:var(--c-neon);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--c-brand);border-color:var(--c-line)}
.btn-line:hover{border-color:var(--c-brand-soft);color:var(--c-brand-dark);transform:translateY(-2px)}
.btn-pill{border-radius:999px}
.btn-sm{padding:.62rem 1.05rem;min-height:42px;font-size:14px}

.nav-toggle{
  width:46px;height:46px;min-height:46px;padding:0;
  background:transparent;border:1px solid var(--c-line-inv);
  border-radius:var(--r-btn);color:var(--c-text-inv);
}
.nav-toggle:hover{border-color:var(--c-neon);color:var(--c-neon)}
.nav-toggle i{font-size:18px}

.offcanvas-dark{background:var(--c-ink-2);color:var(--c-text-inv);border-left:1px solid var(--c-line-inv)}
.offcanvas-dark .offcanvas-header{border-bottom:1px solid var(--c-line-inv);padding:18px 20px}
.offcanvas-dark .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.offcanvas-dark .offcanvas-body{padding:16px 12px}
.mobile-nav-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 14px;border-radius:10px;
  color:rgba(237,241,236,.85);font-size:16px;font-weight:600;
  border-left:2px solid transparent;
}
.mobile-nav-link:hover{background:rgba(255,255,255,.04);color:#fff}
.mobile-nav-link.active{
  background:rgba(200,255,77,.06);
  border-left-color:var(--c-neon);
  color:var(--c-text-inv);
}
.mobile-nav-link i{font-size:12px;color:var(--c-muted-inv)}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  margin-top:var(--nav-h);
  padding:clamp(52px,7vw,92px) 0 clamp(44px,6vw,78px);
  background:
    linear-gradient(100deg,rgba(10,13,12,.95) 8%,rgba(12,59,50,.76) 62%,rgba(10,13,12,.9) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  color:var(--c-text-inv);
  border-bottom:1px solid var(--c-line-inv);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,77,.5),transparent);
}
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted-inv);
  margin-bottom:26px;
  font-family:var(--font-mono);letter-spacing:.02em;
}
.crumbs a{color:var(--c-muted-inv)}
.crumbs a:hover{color:var(--c-neon)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--c-text-inv)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.18em;
  color:var(--c-neon);margin-bottom:18px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--c-neon);display:block}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:800;line-height:1.16;letter-spacing:-0.02em;
  max-width:15em;
}
.page-hero h1 em{font-style:normal;color:var(--c-neon)}
.lede{
  margin-top:20px;
  font-size:16.5px;line-height:1.8;
  color:var(--c-muted-inv);
  max-width:36em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-hairline{
  height:1px;background:linear-gradient(90deg,rgba(200,255,77,.55),rgba(255,255,255,.06));
  margin:42px 0 28px;
}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px}
.stat-num{
  font-family:var(--font-mono);
  font-size:clamp(26px,3vw,34px);
  font-weight:700;color:var(--c-text-inv);letter-spacing:-0.01em;
  line-height:1.1;
}
.stat-num span{color:var(--c-neon);font-size:.6em;margin-left:4px}
.stat-label{font-size:12.5px;color:var(--c-muted-inv);margin-top:6px;letter-spacing:.04em}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  padding:6px 12px;border-radius:4px;
  border:1px solid rgba(200,255,77,.35);
  color:var(--c-neon);background:rgba(200,255,77,.05);
}
.tag-amber{border-color:rgba(232,163,61,.5);color:var(--c-amber);background:rgba(232,163,61,.07)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0}
.section-paper{background:var(--c-paper)}
.section-paper-2{background:var(--c-paper-2)}
.section-ink{background:var(--c-ink);color:var(--c-text-inv);position:relative}
.section-ink::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,77,.45),transparent);
}
.sec-head{margin-bottom:clamp(32px,4vw,48px)}
.sec-head h2{
  font-size:clamp(24px,3.2vw,40px);
  font-weight:750;line-height:1.25;
  max-width:22em;
}
.sec-head p{
  margin-top:14px;color:var(--c-muted);font-size:16px;max-width:44em;
}
.section-ink .sec-head p{color:var(--c-muted-inv)}
.sec-kicker{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--c-brand-soft);margin-bottom:14px;display:block;
}
.section-ink .sec-kicker{color:var(--c-neon)}
.sec-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}

/* ============ 步骤通道 ============ */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.step-card{
  position:relative;
  background:#FFFFFF;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 28px 28px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.step-card:hover{transform:translateY(-3px);border-color:rgba(20,90,74,.45);box-shadow:0 20px 40px -26px rgba(10,14,13,.42)}
.step-num{
  font-family:var(--font-mono);
  font-size:34px;font-weight:700;line-height:1;
  color:var(--c-brand);letter-spacing:-0.02em;
  display:block;margin-bottom:18px;
}
.step-card h3{font-size:20px;font-weight:700;margin-bottom:12px}
.step-card p{font-size:15.5px;color:var(--c-muted);margin-bottom:0}
.step-card::before{
  content:"";position:absolute;top:0;left:28px;right:28px;height:2px;
  background:linear-gradient(90deg,var(--c-neon),transparent);
  opacity:0;transition:opacity var(--t);
}
.step-card:hover::before{opacity:1}
.step-foot{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-muted);
  font-family:var(--font-mono);letter-spacing:.04em;
}
.step-foot i{color:var(--c-brand-soft)}

/* ============ 图集 mosaic ============ */
.m-card{
  position:relative;
  display:flex;flex-direction:column;
  background:#FFFFFF;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.m-card:hover{transform:translateY(-3px);border-color:rgba(200,255,77,.65);box-shadow:0 22px 44px -28px rgba(10,14,13,.5)}
.m-media{overflow:hidden;background:var(--c-brand-dark);position:relative}
.m-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.22,.61,.36,1)}
.m-card:hover .m-media img{transform:scale(1.04)}
.m-media-lg{aspect-ratio:16/9}
.m-media-tall{aspect-ratio:4/3}
.m-media-mini{width:76px;height:76px;border-radius:10px;flex:0 0 76px}
.m-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.m-body h3{font-size:20px;font-weight:700;margin-bottom:10px;line-height:1.35}
.m-body p{font-size:15px;color:var(--c-muted);margin-bottom:16px}
.m-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-family:var(--font-mono);font-size:12.5px;color:var(--c-muted);
  border-top:1px solid var(--c-line);padding-top:14px;letter-spacing:.03em;
}
.m-meta .more{color:var(--c-brand-soft);display:inline-flex;align-items:center;gap:6px;font-family:var(--font-sans);font-weight:600}
.m-card:hover .m-meta .more{color:var(--c-brand-dark)}
.badge-step{
  position:absolute;top:14px;left:14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  background:rgba(10,13,12,.82);color:var(--c-neon);
  border:1px solid rgba(200,255,77,.4);
  border-radius:4px;padding:4px 10px;
}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;
  border:1px solid var(--c-amber);color:#8A5A12;
  background:rgba(232,163,61,.10);
  border-radius:4px;padding:4px 10px;margin-bottom:14px;
}
.m-mini{
  display:flex;gap:16px;align-items:flex-start;
  background:#FFFFFF;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:16px;
  height:100%;
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t);
}
.m-mini:hover{transform:translateY(-3px);border-color:rgba(200,255,77,.65)}
.m-mini h4{font-size:16px;font-weight:700;margin-bottom:6px;line-height:1.4}
.m-mini p{font-size:14px;color:var(--c-muted);margin-bottom:8px}
.m-mini .mini-time{font-family:var(--font-mono);font-size:12px;color:var(--c-muted);letter-spacing:.04em}

/* ============ 行式列表 ============ */
.row-list{border-top:1px solid var(--c-line)}
.row-item{
  display:grid;
  grid-template-columns:112px 1fr 44px;
  align-items:center;gap:24px;
  padding:26px 18px;
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),padding-left var(--t);
}
.row-item:hover{background:rgba(200,255,77,.05);padding-left:22px}
.row-tag{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  color:var(--c-brand-soft);
}
.row-body h3{font-size:18px;font-weight:700;margin-bottom:6px}
.row-body p{font-size:15px;color:var(--c-muted);margin-bottom:0;max-width:56em}
.row-arrow{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-brand-soft);
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.row-item:hover .row-arrow{border-color:var(--c-neon);color:var(--c-brand-dark);transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--c-line);
}
.accordion-button{
  background:transparent;
  color:var(--c-text);
  font-size:17px;font-weight:600;
  padding:22px 44px 22px 0;
  line-height:1.6;
  border-radius:0 !important;
}
.accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none}
.accordion-button::after{
  display:none;
}
.accordion-button .faq-icon{
  position:absolute;right:0;top:24px;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-brand-soft);
  transition:transform var(--t),color var(--t);
}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(90deg);color:var(--c-brand-dark)}
.accordion-body{
  padding:0 60px 26px 0;
  font-size:15.5px;line-height:1.8;color:var(--c-muted);
}

/* ============ 表单 CTA ============ */
.entry-panel{
  display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,56px);
  align-items:start;
}
.entry-copy h2{font-size:clamp(24px,3vw,36px);font-weight:750;line-height:1.26}
.entry-copy p{margin-top:16px;color:var(--c-muted-inv);font-size:16px}
.entry-points{margin-top:28px;border-top:1px solid var(--c-line-inv)}
.entry-points li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--c-line-inv);
  font-size:15px;color:var(--c-muted-inv);
}
.entry-points i{color:var(--c-neon);margin-top:5px;font-size:13px}
.entry-form{
  background:rgba(255,255,255,.03);
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-card);
  padding:clamp(24px,3vw,36px);
}
.entry-form h3{font-size:20px;font-weight:700;margin-bottom:10px}
.entry-form .form-note{font-size:14px;color:var(--c-muted-inv);margin-bottom:24px}
.form-field{margin-bottom:18px}
.form-field label{
  display:block;font-size:13px;letter-spacing:.06em;
  color:var(--c-muted-inv);margin-bottom:8px;font-weight:600;
}
.form-control,.form-select{
  width:100%;height:48px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line-inv);
  border-radius:var(--r-btn);
  color:var(--c-text-inv);
  font-size:15px;
  padding:0 14px;
  transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
}
textarea.form-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:rgba(155,168,162,.75)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);
  border-color:var(--c-neon);
  color:var(--c-text-inv);
  box-shadow:0 0 0 3px rgba(200,255,77,.18);
}
.form-select option{background:var(--c-ink-2);color:var(--c-text-inv)}
.form-msg{
  font-size:13px;color:var(--c-amber);
  min-height:20px;margin-top:12px;
}
.privacy-note{font-size:12px;color:var(--c-muted-inv);margin-top:14px;margin-bottom:0}

.cta-band{
  background:linear-gradient(100deg,rgba(10,13,12,.96),rgba(12,59,50,.85)),
             url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  border-top:1px solid rgba(200,255,77,.35);
  padding:clamp(48px,6vw,84px) 0;
  color:var(--c-text-inv);
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(24px,3vw,38px);font-weight:750;max-width:20em}
.cta-inner p{margin-top:12px;color:var(--c-muted-inv);font-size:15.5px;max-width:34em}
.cta-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px;padding-top:32px;border-top:1px solid var(--c-line-inv)}
.cta-col .k{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--c-neon);margin-bottom:8px;display:block}
.cta-col .v{font-size:15px;color:var(--c-muted-inv)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:var(--c-muted-inv);
  position:relative;
  padding:clamp(52px,6vw,80px) 0 26px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,255,77,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:32px;
  padding-bottom:44px;
  border-bottom:1px solid var(--c-line-inv);
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:34em;margin-bottom:0}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--c-text-inv);
  letter-spacing:.06em;margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:var(--c-muted-inv);font-size:14.5px}
.footer-col a:hover{color:var(--c-neon)}
.footer-col .txt{font-size:14.5px;color:var(--c-muted-inv)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;padding-top:24px;
}
.footer-bottom p{font-size:12.5px;margin-bottom:0;color:var(--c-muted-inv)}
.footer-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-links a{font-size:12.5px;color:var(--c-muted-inv)}
.footer-links a:hover{color:var(--c-neon)}

.to-top{
  position:fixed;right:24px;bottom:24px;
  width:44px;height:44px;border-radius:50%;
  background:rgba(10,13,12,.9);
  border:1px solid rgba(200,255,77,.45);
  color:var(--c-neon);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background-color var(--t);
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-brand-dark)}

/* ============ 滚动揭示 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}
.reveal.d2{transition-delay:.12s}
.reveal.d3{transition-delay:.18s}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  :root{--nav-h:68px}
  .steps-grid{grid-template-columns:1fr 1fr}
  .entry-panel{grid-template-columns:1fr}
  .cta-cols{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .row-item{grid-template-columns:96px 1fr 40px;gap:18px;padding:22px 14px}
  .hero-stats{gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .steps-grid{grid-template-columns:1fr}
  .cta-cols{grid-template-columns:1fr}
  .row-item{grid-template-columns:1fr;gap:10px;padding:20px 0}
  .row-arrow{display:none}
  .m-body{padding:18px 18px 20px}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .m-media-mini{width:64px;height:64px;flex:0 0 64px}
  .accordion-body{padding-right:0}
}
@media (max-width:575px){
  .hero-stats{gap:22px}
  .stat-num{font-size:24px}
  .page-hero{padding-top:44px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --c-brand:#0C3B32;
  --c-brand-dark:#072722;
  --c-brand-soft:#145A4A;
  --c-neon:#C8FF4D;
  --c-amber:#E8A33D;
  --c-ink:#0A0D0C;
  --c-ink-2:#121715;
  --c-paper:#F6F7F3;
  --c-paper-2:#ECEFE9;
  --c-text:#101413;
  --c-text-invert:#EDF1EC;
  --c-muted:#6F7C77;
  --c-muted-invert:#9BA8A2;
  --c-line:#E2E6DF;
  --c-line-invert:rgba(255,255,255,.10);
  --c-ok:#1F9D6B;
  --c-warn:#E4572E;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-card:0 14px 34px -24px rgba(10,14,13,.28);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SF Mono",Consolas,"Liberation Mono",monospace;
  --sec-y:clamp(64px,8vw,120px);
  --t:.22s cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:var(--c-paper);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-link-color:var(--c-brand);
  --bs-link-hover-color:var(--c-brand-soft);
  --bs-primary:var(--c-brand);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  padding-top:76px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-soft);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:750;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,255,77,.22),0 0 0 1px var(--c-brand);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;}
.section-tight{padding:clamp(48px,6vw,84px) 0;}
.mono{font-family:var(--font-mono);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;font-weight:600;
  color:var(--c-brand-soft);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--c-neon);display:block;}
.dark .eyebrow{color:var(--c-neon);}
.sec-title{font-size:clamp(24px,3.2vw,40px);font-weight:750;}
.sec-lead{margin-top:14px;font-size:16px;color:var(--c-muted);max-width:56ch;}
.dark{background:var(--c-ink);color:var(--c-text-invert);}
.dark .sec-lead{color:var(--c-muted-invert);}
.hairline{height:1px;background:var(--c-line);border:0;margin:0;}
.dark .hairline{background:var(--c-line-invert);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(10,13,12,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line-invert);
}
.header-line{
  height:2px;width:0;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,0));
  transition:width .32s cubic-bezier(.22,.61,.36,1);
}
.site-header.is-scrolled .header-line{width:100%;}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;transition:height var(--t);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:baseline;gap:8px;text-decoration:none;white-space:nowrap;}
.brand-mark{
  font-family:var(--font-mono);font-size:14px;font-weight:700;
  letter-spacing:.2em;color:var(--c-neon);text-transform:lowercase;
}
.brand-name{font-size:18px;font-weight:800;color:var(--c-text-invert);letter-spacing:.01em;}
.site-header .nav-links{display:flex;align-items:center;gap:2px;}
.site-header .nav-link{
  position:relative;display:block;
  padding:10px 14px;font-size:15px;font-weight:550;
  color:rgba(237,241,236,.76);
  border:0;background:transparent;
  transition:color var(--t);
}
.site-header .nav-link::after{
  content:"";position:absolute;bottom:2px;left:50%;right:50%;height:2px;
  background:var(--c-neon);transition:left var(--t),right var(--t);
}
.site-header .nav-link:hover{color:#fff;}
.site-header .nav-link:hover::after{left:14px;right:14px;}
.site-header .nav-link.active{
  color:#fff;
  text-shadow:0 0 12px rgba(200,255,77,.45);
}
.site-header .nav-link.active::after{left:14px;right:14px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  font-size:15px;font-weight:650;
  color:var(--c-brand-dark);
  background:var(--c-amber);
  border:1px solid var(--c-amber);
  border-radius:var(--radius-btn);
  transition:transform var(--t),background var(--t),box-shadow var(--t),border-color var(--t),color var(--t);
}
.btn-amber:hover{
  color:var(--c-brand-dark);
  background:var(--c-neon);
  border-color:var(--c-neon);
  transform:translateY(-2px);
  box-shadow:0 10px 28px -14px rgba(200,255,77,.6);
}
.btn-amber:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  font-size:15px;font-weight:600;
  color:var(--c-text-invert);
  background:transparent;
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--radius-btn);
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-ghost:hover{color:var(--c-neon);border-color:var(--c-neon);transform:translateY(-2px);}
.btn-outline-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  font-size:15px;font-weight:600;
  color:var(--c-brand);
  background:transparent;
  border:1px solid rgba(12,59,50,.28);
  border-radius:var(--radius-btn);
  transition:border-color var(--t),color var(--t),transform var(--t);
}
.btn-outline-ink:hover{color:var(--c-brand-dark);border-color:var(--c-brand);transform:translateY(-2px);}
.btn-pill{border-radius:999px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:46px;height:46px;
  background:transparent;border:1px solid rgba(255,255,255,.24);border-radius:var(--radius-btn);
  color:var(--c-text-invert);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line-invert);
  background:rgba(10,13,12,.98);
  padding:10px 0 18px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;padding:12px 24px;
  font-size:15.5px;font-weight:550;color:rgba(237,241,236,.8);
  border-left:3px solid transparent;
}
.mobile-panel a.active{color:#fff;border-left-color:var(--c-neon);background:rgba(200,255,77,.06);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  color:var(--c-text-invert);
  background-image:linear-gradient(100deg,rgba(10,13,12,.97) 0%,rgba(10,13,12,.9) 46%,rgba(12,59,50,.72) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,77,.65),rgba(200,255,77,0));
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted-invert);margin-bottom:26px;}
.crumb a{color:rgba(237,241,236,.72);}
.crumb a:hover{color:var(--c-neon);}
.crumb .sep{opacity:.5;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.16;letter-spacing:-.02em;
  max-width:19ch;margin:12px 0 0;
}
.page-hero h1 em{font-style:normal;color:var(--c-neon);}
.hero-sub{margin-top:18px;max-width:60ch;font-size:16.5px;color:rgba(237,241,236,.78);}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;margin-top:44px;
  border-top:1px solid var(--c-line-invert);
}
.hero-stat{padding:22px 24px 0 0;border-right:1px solid var(--c-line-invert);}
.hero-stat:last-child{border-right:0;}
.hero-stat b{
  display:block;font-family:var(--font-mono);font-weight:700;
  font-size:clamp(26px,3vw,36px);color:var(--c-neon);line-height:1.1;
}
.hero-stat var{display:block;margin-top:8px;font-style:normal;font-size:12.5px;letter-spacing:.06em;color:var(--c-muted-invert);}

/* ---------- 方案组合 ---------- */
.plan-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.plan-main{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
}
.plan-main figure{margin:0;overflow:hidden;aspect-ratio:16/9;}
.plan-main figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.plan-main:hover figure img{transform:scale(1.04);}
.plan-main .body{padding:22px 24px 26px;}
.plan-side{display:flex;flex-direction:column;gap:24px;}
.plan-item{
  flex:1;
  background:var(--c-paper-2);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:22px 22px 24px;
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.plan-item:hover{transform:translateY(-3px);border-color:rgba(12,59,50,.35);background:#fff;}
.plan-item h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.plan-item p{font-size:15px;color:var(--c-muted);margin:0;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 10px;border-radius:4px;
}
.badge-amber{color:var(--c-brand-dark);background:rgba(232,163,61,.22);border:1px solid rgba(232,163,61,.7);}
.badge-ink{color:var(--c-brand);background:rgba(12,59,50,.08);border:1px solid rgba(12,59,50,.3);}
.list-check li{
  position:relative;padding:11px 0 11px 26px;
  font-size:15.5px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.list-check li:last-child{border-bottom:0;}
.list-check li::before{
  content:"";position:absolute;left:2px;top:21px;
  width:9px;height:9px;border-left:2px solid var(--c-neon);border-bottom:2px solid var(--c-neon);
  transform:rotate(-45deg);
}

/* ---------- 左说明 + 右 FAQ ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.sticky-col{position:sticky;top:110px;}
.sticky-col h2{font-size:clamp(24px,3vw,36px);font-weight:750;}
.sticky-col p{margin-top:16px;color:var(--c-muted);font-size:16px;}
.entry-card{
  margin-top:28px;padding:26px;
  border:1px solid var(--c-line-invert);
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.03);
}
.dark .entry-card p{color:var(--c-muted-invert);}
.entry-card .mono-num{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--c-neon);
}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--c-line);
  border-radius:0;
}
.accordion-button{
  background:transparent;color:var(--c-text);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:20px 44px 20px 0;
  border:0;border-radius:0;box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--c-brand);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(200,255,77,.22);}
.accordion-button::after{
  position:absolute;right:6px;
  width:14px;height:14px;background-size:14px;
  filter:invert(38%) sepia(14%) saturate(600%) hue-rotate(110deg);
  transition:transform var(--t);
}
.accordion-body{
  padding:0 44px 22px 0;
  font-size:15.5px;line-height:1.85;color:var(--c-muted);
}

/* ---------- 对比要点 ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:44px;}
.compare-box{
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:26px 26px 28px;
  background:transparent;
}
.compare-box h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.compare-box .sub{font-size:13px;font-family:var(--font-mono);letter-spacing:.1em;color:var(--c-muted);text-transform:uppercase;}
.compare-box ul{margin-top:18px;}
.compare-box li{
  padding:10px 0 10px 22px;position:relative;
  font-size:15.5px;border-bottom:1px solid var(--c-line);
}
.compare-box li:last-child{border-bottom:0;}
.compare-box li::before{
  content:"";position:absolute;left:0;top:20px;width:10px;height:2px;background:var(--c-amber);
}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:48px;border-top:1px solid var(--c-line-invert);}
.flow-item{padding:28px 24px 8px 0;border-right:1px solid var(--c-line-invert);}
.flow-item:last-child{border-right:0;}
.flow-item .num{
  font-family:var(--font-mono);font-size:30px;font-weight:700;
  color:var(--c-neon);line-height:1;
}
.flow-item h3{font-size:17.5px;font-weight:650;margin:16px 0 8px;}
.flow-item p{font-size:14.5px;color:var(--c-muted-invert);margin:0;}

/* ---------- CTA / 表单 ---------- */
.cta-band{
  position:relative;
  padding:var(--sec-y) 0;
  background:var(--c-ink-2);
  color:var(--c-text-invert);
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,0) 62%);
}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.cta-grid h2{font-size:clamp(24px,3.2vw,38px);font-weight:750;}
.cta-grid .lead{margin-top:18px;color:var(--c-muted-invert);font-size:16px;}
.cta-facts{margin-top:32px;border-top:1px solid var(--c-line-invert);}
.cta-facts li{
  display:flex;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px solid var(--c-line-invert);
  font-size:14.5px;color:var(--c-muted-invert);
}
.cta-facts b{color:var(--c-text-invert);font-weight:600;font-family:var(--font-mono);letter-spacing:.04em;}
.form-panel{
  background:rgba(255,255,255,.035);
  border:1px solid var(--c-line-invert);
  border-radius:var(--radius-card);
  padding:30px;
}
.form-panel h3{font-size:20px;font-weight:700;}
.form-panel .hint{font-size:14px;color:var(--c-muted-invert);margin-top:8px;}
.field{margin-top:20px;}
.field label{
  display:block;font-size:13px;letter-spacing:.06em;font-weight:600;
  color:rgba(237,241,236,.82);margin-bottom:8px;
}
.field label i{color:var(--c-amber);font-style:normal;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:11px 14px;
  font-family:inherit;font-size:15px;color:var(--c-text-invert);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-btn);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-neon) 50%),linear-gradient(135deg,var(--c-neon) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field select option{color:#101413;background:#fff;}
.field input::placeholder,.field textarea::placeholder{color:rgba(237,241,236,.38);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-neon);background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(200,255,77,.18);
}
.form-actions{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-tip{font-size:12.5px;color:var(--c-muted-invert);margin-top:14px;min-height:20px;}
.form-tip.is-warn{color:#F09070;}
.form-tip.is-ok{color:var(--c-neon);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);color:var(--c-muted-invert);
  padding:64px 0 26px;
  position:relative;
  font-size:14.5px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--c-neon),rgba(200,255,77,0) 70%);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--c-muted-invert);font-size:14.5px;line-height:1.8;max-width:38ch;}
.footer-col h4{
  font-size:13px;letter-spacing:.14em;font-weight:700;color:var(--c-text-invert);
  margin-bottom:16px;text-transform:uppercase;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--c-muted-invert);}
.footer-col a:hover{color:var(--c-neon);}
.footer-col .txt{color:var(--c-muted-invert);font-size:14px;}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--c-line-invert);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:12.5px;color:var(--c-muted-invert);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:var(--c-muted-invert);}
.footer-links a:hover{color:var(--c-neon);}
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:1030;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:rgba(10,13,12,.9);border:1px solid rgba(200,255,77,.5);border-radius:50%;
  color:var(--c-neon);font-size:16px;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),visibility var(--t),transform var(--t);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.06s;}
.reveal.d2{transition-delay:.12s;}
.reveal.d3{transition-delay:.18s;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .plan-layout{grid-template-columns:1fr 1fr;}
  .split{gap:36px;}
}
@media (max-width:991px){
  body{padding-top:64px;}
  .header-inner{height:64px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .site-header .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-amber{display:none;}
  .plan-layout{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .sticky-col{position:static;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-item{padding:24px 20px 12px 0;}
  .flow-item:nth-child(2){border-right:0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{font-size:16px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-stat{border-right:0;border-bottom:1px solid var(--c-line-invert);padding:18px 0 14px;}
  .hero-stat:last-child{border-bottom:0;}
  .compare{grid-template-columns:1fr;}
  .page-hero{padding:36px 0 48px;}
  .plan-main .body{padding:18px 18px 22px;}
  .form-panel{padding:22px;}
  .flow{grid-template-columns:1fr;}
  .flow-item{border-right:0;border-bottom:1px solid var(--c-line-invert);padding:22px 0 16px;}
  .flow-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn-amber,.btn-ghost,.btn-outline-ink{width:100%;min-height:48px;}
  .form-actions{flex-direction:column;align-items:stretch;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}