/* roulang page: index */
:root{
  --ink:#0C1310;
  --lime:#C6F24E;
  --pine:#14513F;
  --coral:#FF5C3A;
  --paper:#F5F6F1;
  --white:#FFFFFF;
  --t1:#12180F;
  --t2:#5C6862;
  --t3:#8C968F;
  --line:#E3E6DC;
  --line-dark:rgba(198,242,78,.18);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,19,16,.04),0 8px 24px rgba(12,19,16,.06);
  --sh-2:0 2px 4px rgba(12,19,16,.05),0 18px 44px rgba(12,19,16,.12);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --gap-section:72px;
  --nav-h:66px;
  --tab-h:58px;
}
*,*::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:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  padding-bottom:124px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);margin:0;line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(34px,5.2vw,64px);line-height:1.12}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.2}
h3{font-size:clamp(19px,2vw,23px);line-height:1.35;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.section{padding:var(--gap-section) 0}
.section--paper{background:var(--paper)}
.section--white{background:var(--white)}
.section--ink{background:var(--ink);color:#F2F5EE}
.section--ink .lead,.section--ink .eyebrow{color:rgba(242,245,238,.72)}

.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--pine);
  font-family:var(--font-num);
  margin-bottom:14px;
}
.eyebrow--lime{color:var(--lime)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-bottom:12px}
.lead{color:var(--t2);font-size:16px;line-height:1.9}
.divider{height:1px;background:var(--line);border:0;margin:0}
.section--ink .divider{background:var(--line-dark)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  transition:background .24s ease,box-shadow .24s ease,backdrop-filter .24s ease;
  background:linear-gradient(180deg,rgba(12,19,16,.86),rgba(12,19,16,.42));
}
.site-header.is-scrolled{
  background:rgba(12,19,16,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-dark);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:var(--nav-h);
}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:10px;
  background:var(--lime);
  color:var(--ink);
  display:grid;place-items:center;
  font-family:var(--font-num);
  font-weight:700;font-size:15px;
  letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-family:var(--font-serif);font-weight:900;font-size:17px;letter-spacing:.01em}
.logo-sub{font-size:11px;letter-spacing:.18em;color:rgba(242,245,238,.6);font-family:var(--font-num)}
.nav-links{display:none;align-items:center;gap:4px}
.nav-links a{
  padding:8px 12px;
  font-size:14px;
  color:rgba(242,245,238,.78);
  border-radius:var(--r-pill);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(198,242,78,.12)}
.nav-links a.is-active{color:var(--ink);background:var(--lime);font-weight:500}
.nav-cta{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:500;
  cursor:pointer;
  transition:transform .12s ease,filter .12s ease,border-color .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);border-color:#D6FA6E}
.btn-pine{background:var(--pine);color:#fff;border-color:var(--pine)}
.btn-pine:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#F2F5EE;border-color:rgba(242,245,238,.32)}
.btn-ghost:hover{border-color:var(--lime);background:rgba(198,242,78,.10);color:#fff;transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--t1);border-color:var(--line)}
.btn-ghost-dark:hover{border-color:var(--pine);background:rgba(20,81,63,.06);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.38;pointer-events:none}

.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.04em;
  font-family:var(--font-num);
  background:rgba(20,81,63,.10);
  color:var(--pine);
  border:1px solid rgba(20,81,63,.16);
}
.tag--lime{background:rgba(198,242,78,.16);color:#3B4A16;border-color:rgba(198,242,78,.5)}
.tag--dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral);margin-right:6px}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:var(--ink);
  color:#F2F5EE;
  padding:calc(var(--nav-h) + 42px) 0 54px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  opacity:.34;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 80% at 12% 8%,rgba(198,242,78,.16),transparent 58%),
    linear-gradient(180deg,rgba(12,19,16,.80) 0%,rgba(12,19,16,.94) 62%,rgba(12,19,16,1) 100%);
}
.hero-inner{position:relative;display:grid;gap:36px;grid-template-columns:1fr}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-dark);
  background:rgba(198,242,78,.08);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--lime);
  margin-bottom:18px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--coral);display:block}
.hero-title{color:#fff;max-width:16em}
.hero-title em{font-style:normal;color:var(--lime)}
.hero-rule{width:48px;height:3px;background:var(--lime);border-radius:2px;margin:22px 0 20px}
.hero-sub{
  font-size:16px;
  line-height:1.95;
  color:rgba(242,245,238,.78);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-quick{
  display:flex;flex-wrap:wrap;gap:8px 20px;
  margin-top:30px;padding-top:22px;
  border-top:1px solid var(--line-dark);
}
.hero-quick a{
  font-size:13px;letter-spacing:.04em;color:rgba(242,245,238,.68);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .18s ease;
}
.hero-quick a::before{content:"";width:14px;height:1px;background:var(--lime);display:block}
.hero-quick a:hover{color:var(--lime)}
.hero-visual{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-dark);
  box-shadow:0 0 0 1px rgba(198,242,78,.06),0 24px 60px rgba(0,0,0,.45);
  aspect-ratio:16/10;
  background:#0F1713;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1)}
.hero-visual:hover img{transform:scale(1.03)}

/* ============ 锚点索引条 ============ */
.index-bar{
  position:sticky;top:var(--nav-h);z-index:50;
  background:rgba(245,246,241,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.index-track{
  display:flex;align-items:center;gap:6px;
  height:40px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.index-track::-webkit-scrollbar{display:none}
.index-track a{
  flex:0 0 auto;
  font-size:13px;
  letter-spacing:.03em;
  color:var(--t2);
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.index-track a:hover{color:var(--t1);border-color:var(--line)}
.index-track a.is-active{color:var(--ink);background:var(--lime);border-color:var(--lime);font-weight:500}

/* ============ 卖点区 ============ */
.feature-grid{display:grid;gap:20px;grid-template-columns:1fr}
.feature-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(198,242,78,.9);box-shadow:var(--sh-2)}
.feature-card h3{margin:16px 0 10px}
.feature-card p{color:var(--t2);font-size:15px;line-height:1.9}
.feature-icon{
  width:44px;height:44px;border-radius:12px;
  background:rgba(20,81,63,.08);
  border:1px solid rgba(20,81,63,.14);
  display:grid;place-items:center;color:var(--pine);
}
.feature-icon svg{width:22px;height:22px}
.feature-list{margin-top:16px;display:grid;gap:8px}
.feature-list li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--t2);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--lime);
  box-shadow:0 0 0 1px rgba(12,19,16,.12);
}
.feature-foot{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 演示区 ============ */
.demo-wrap{display:grid;gap:32px;grid-template-columns:1fr}
.steps{display:grid;gap:0;counter-reset:step}
.step{
  position:relative;
  display:grid;grid-template-columns:48px 1fr;gap:16px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.step:first-child{padding-top:0}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-num{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--ink);color:var(--lime);
  font-family:var(--font-num);font-weight:700;font-size:16px;
  letter-spacing:.04em;
}
.step h3{font-size:18px;margin-bottom:6px}
.step p{color:var(--t2);font-size:15px}
.demo-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:var(--white);
  aspect-ratio:4/3;
}
.demo-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s cubic-bezier(.22,.61,.36,1)}
.demo-media:hover img{transform:scale(1.03)}
.demo-note{
  margin-top:16px;padding:14px 16px;
  border-radius:var(--r-card);
  background:rgba(20,81,63,.06);
  border:1px solid rgba(20,81,63,.14);
  font-size:14px;color:var(--pine);
}

/* ============ 证据区 ============ */
.stat-grid{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
.stat{
  padding:22px 20px;
  border-radius:var(--r-card);
  border:1px solid var(--line-dark);
  background:linear-gradient(180deg,rgba(198,242,78,.06),rgba(198,242,78,0));
}
.stat b{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(30px,7vw,52px);
  line-height:1;
  color:var(--lime);
  letter-spacing:.02em;
}
.stat span{display:block;margin-top:10px;font-size:14px;color:rgba(242,245,238,.7)}
.proof-quote{
  margin-top:34px;
  padding:24px 24px 24px 28px;
  border-left:3px solid var(--lime);
  background:rgba(255,255,255,.04);
  border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:15px;line-height:1.95;color:rgba(242,245,238,.86);
}

/* ============ 资讯区 ============ */
.news-grid{display:grid;gap:22px;grid-template-columns:1fr}
.news-card{
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(198,242,78,.95);box-shadow:var(--sh-2)}
.news-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:#EDEFE8}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s cubic-bezier(.22,.61,.36,1)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:19px;margin:2px 0 0}
.news-title a{transition:color .18s ease}
.news-title a:hover{color:var(--pine)}
.news-excerpt{
  color:var(--t2);font-size:14px;line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--t3);
  font-family:var(--font-num);letter-spacing:.02em;
}
.news-more{display:inline-flex;align-items:center;gap:4px;color:var(--pine);font-weight:500;font-family:var(--font-sans)}
.news-more .arrow{transition:transform .18s ease;display:inline-block}
.news-card:hover .news-more .arrow{transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:38px 20px;
  text-align:center;
  color:var(--t3);
  background:var(--white);
  font-size:15px;
}

/* ============ 访问方式对照 ============ */
.price-grid{display:grid;gap:20px;grid-template-columns:1fr}
.price-card{
  display:flex;flex-direction:column;gap:14px;
  padding:26px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line-dark);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
}
.price-card.is-featured{
  border-color:var(--lime);
  background:linear-gradient(180deg,rgba(198,242,78,.12),rgba(198,242,78,.02));
}
.price-card h3{color:#fff}
.price-desc{color:rgba(242,245,238,.72);font-size:14px;line-height:1.9}
.price-list{display:grid;gap:9px;margin-top:4px}
.price-list li{
  position:relative;padding-left:20px;
  font-size:14px;color:rgba(242,245,238,.82);
}
.price-list li::before{
  content:"";position:absolute;left:0;top:.68em;
  width:8px;height:2px;background:var(--lime);border-radius:1px;
}
.price-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line-dark)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;gap:28px;grid-template-columns:1fr}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 40px 20px 16px;
  position:relative;
  font-family:var(--font-serif);
  font-size:17px;font-weight:700;
  line-height:1.55;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  position:absolute;right:12px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--t2);
  border-bottom:2px solid var(--t2);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] summary{color:var(--pine)}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--pine)}
.faq-item summary:hover{color:var(--pine)}
.faq-body{
  padding:0 40px 22px 16px;
  color:var(--t2);
  font-size:15px;
  line-height:1.9;
  position:relative;
}
.faq-item[open] .faq-body::before{
  content:"";position:absolute;left:0;top:2px;bottom:22px;width:3px;
  background:var(--lime);border-radius:2px;
}
.faq-aside{
  padding:24px;
  border-radius:var(--r-card);
  background:var(--white);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.faq-aside h3{font-size:18px;margin-bottom:10px}
.faq-aside p{color:var(--t2);font-size:14.5px}
.faq-aside ul{margin-top:14px;display:grid;gap:8px}
.faq-aside ul li{font-size:14px;color:var(--t2);padding-left:16px;position:relative}
.faq-aside ul li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:2px;background:var(--lime)}
.faq-cta{margin-top:20px}

/* ============ 页脚 CTA + 表单 ============ */
.cta-band{
  background:var(--ink);
  color:#F2F5EE;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,19,16,.86),rgba(12,19,16,.97));
}
.cta-inner{position:relative;display:grid;gap:32px;grid-template-columns:1fr}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band .lead{color:rgba(242,245,238,.74)}
.form-grid{display:grid;gap:16px;grid-template-columns:1fr}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;letter-spacing:.06em;color:rgba(242,245,238,.66);font-family:var(--font-num)}
.field input{
  width:100%;
  padding:12px 14px;
  border-radius:var(--r-input);
  border:1px solid rgba(242,245,238,.2);
  background:rgba(255,255,255,.05);
  color:#fff;
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field input::placeholder{color:rgba(242,245,238,.38)}
.field input:focus{
  outline:none;
  border-color:var(--lime);
  background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(198,242,78,.14);
}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px}
.form-tip{font-size:12.5px;color:rgba(242,245,238,.5)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(242,245,238,.72);
  border-top:1px solid var(--line-dark);
  padding:56px 0 28px;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
.footer-col h4{
  font-size:13px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:rgba(242,245,238,.52);
  font-family:var(--font-num);
  margin-bottom:16px;
  font-weight:500;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
.footer-brand .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:14px}
.footer-brand span.fb-text{font-family:var(--font-serif);font-weight:900;font-size:16px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(242,245,238,.6);max-width:34em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(242,245,238,.72);transition:color .18s ease}
.footer-links a:hover{color:var(--lime)}
.footer-contact{display:grid;gap:10px;font-size:14px}
.footer-contact span{display:flex;gap:8px;color:rgba(242,245,238,.68)}
.footer-contact b{font-weight:500;color:rgba(242,245,238,.46);min-width:56px;display:inline-block;font-family:var(--font-num);font-size:12.5px;letter-spacing:.06em}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(242,245,238,.1);
  display:flex;flex-wrap:wrap;gap:10px 20px;
  align-items:center;justify-content:space-between;
  font-size:12.5px;color:rgba(242,245,238,.46);
  font-family:var(--font-num);letter-spacing:.02em;
}

/* ============ 悬浮 CTA ============ */
.float-cta{
  position:fixed;
  left:16px;right:16px;
  bottom:calc(var(--tab-h) + 8px + env(safe-area-inset-bottom,0px));
  z-index:70;
  height:48px;
  display:flex;align-items:center;justify-content:center;
  gap:10px;
  border-radius:var(--r-pill);
  background:var(--lime);
  color:var(--ink);
  font-weight:700;
  font-size:15px;
  box-shadow:0 10px 26px rgba(12,19,16,.24);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .28s ease,transform .28s ease,filter .16s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{filter:brightness(1.06)}
.float-cta svg{width:18px;height:18px}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:calc(var(--tab-h) + env(safe-area-inset-bottom,0px));
  padding-bottom:env(safe-area-inset-bottom,0px);
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(12,19,16,.96);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line-dark);
}
.tab-item{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:12px;
  color:rgba(242,245,238,.6);
  transition:color .18s ease;
}
.tab-item svg{width:20px;height:20px}
.tab-item.is-active{color:var(--lime)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;width:22px;height:2px;border-radius:1px;background:var(--lime);
}

/* ============ 入场动效 ============ */
.rise{animation:rise .48s cubic-bezier(.22,.61,.36,1) both}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.d1{animation-delay:.06s}.d2{animation-delay:.12s}.d3{animation-delay:.18s}.d4{animation-delay:.24s}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ============ 断点 ============ */
@media (min-width:480px){
  .form-grid{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:640px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  :root{--gap-section:96px;--nav-h:72px}
  body{padding-bottom:0}
  .container{padding:0 32px}
  .hero{padding:calc(var(--nav-h) + 64px) 0 76px}
  .demo-wrap{grid-template-columns:1.05fr .95fr;align-items:start}
  .faq-wrap{grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
  .cta-inner{grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .tabbar{display:none}
  .float-cta{
    left:auto;right:28px;
    bottom:32px;
    height:auto;
    padding:13px 22px;
    font-size:15px;
  }
}
@media (min-width:1024px){
  .container{padding:0 48px}
  :root{--gap-section:112px}
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .hero-inner{grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .feature-card--wide{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(3,1fr)}
  .price-grid{grid-template-columns:repeat(3,1fr)}
  .stat-grid{grid-template-columns:repeat(4,1fr)}
}
@media (min-width:1280px){
  .hero-inner{gap:64px}
}

/* roulang page: article */
:root{
  --ink:#0C1310;
  --ink-soft:#141C18;
  --lime:#C6F24E;
  --pine:#14513F;
  --coral:#FF5C3A;
  --paper:#F5F6F1;
  --white:#FFFFFF;
  --t1:#12180F;
  --t2:#5C6862;
  --t3:#8C968F;
  --line:#E3E6DC;
  --line-dark:rgba(198,242,78,.18);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --shadow:0 1px 2px rgba(12,19,16,.04),0 8px 24px rgba(12,19,16,.06);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0 48px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .24s var(--ease),backdrop-filter .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,19,16,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:rgba(198,242,78,.18);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-sans);font-weight:800;font-size:15px;letter-spacing:.04em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em}
.logo-sub{color:rgba(255,255,255,.52);font-size:11px;letter-spacing:.14em}
.nav-links{display:none;margin-left:auto;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:14px;color:rgba(255,255,255,.72);
  padding:6px 0;transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime);
  transition:width .24s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--lime)}
.nav-links a.is-active::after{width:100%}
.nav-cta{display:none;margin-left:8px}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;
  transition:transform .12s var(--ease),filter .12s var(--ease),background .12s var(--ease),border-color .12s var(--ease),color .12s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);border-color:#D8FF6B}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{border-color:var(--lime);background:rgba(198,242,78,.06)}
.btn-pine{background:var(--pine);color:#fff;border-color:var(--pine)}
.btn-pine:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);outline-offset:2px;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  padding:44px 0 56px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,19,16,.94) 0%,rgba(12,19,16,.82) 52%,rgba(12,19,16,.62) 100%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.58);letter-spacing:.02em;margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span.sep{color:rgba(255,255,255,.28)}
.article-hero .tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(198,242,78,.12);border:1px solid var(--line-dark);color:var(--lime);
  font-size:12px;letter-spacing:.08em;margin-bottom:16px;
}
.article-hero h1{
  font-size:clamp(28px,4.4vw,46px);line-height:1.2;color:#fff;max-width:900px;
}
.article-hero .hero-line{width:48px;height:3px;background:var(--lime);border-radius:2px;margin:22px 0}
.meta-bar{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.02em}
.meta-bar b{color:rgba(255,255,255,.9);font-weight:600}

/* ---------- 正文 ---------- */
.article-wrap{padding:56px 0 0}
.article-panel{
  max-width:740px;margin:0 auto;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:28px 22px 34px;
}
@media (min-width:768px){.article-panel{padding:44px 48px 52px}}
.article-body{font-size:17px;line-height:1.95;color:#1B221A}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body strong{font-weight:700}
.article-body h2{
  font-size:clamp(21px,2.6vw,26px);margin:2em 0 .7em;padding-bottom:.4em;
  border-bottom:1px solid var(--line);position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;bottom:-1px;width:56px;height:3px;background:var(--lime);border-radius:2px;
}
.article-body h3{font-size:19px;margin:1.7em 0 .6em;padding-left:12px;border-left:3px solid var(--pine)}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--pine)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin:0 0 .55em}
.article-body ul li::marker{color:var(--pine)}
.article-body ol li::marker{color:var(--pine);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:#F7FAF0;border-left:3px solid var(--lime);
  border-radius:var(--r-img);color:var(--t2);font-size:16px;
}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;overflow:hidden;border-radius:var(--r-img)}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:#F0F3EA;font-weight:700;color:var(--t1)}
.article-body tr:hover td{background:#FAFBF6}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.article-body a{color:var(--pine);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#0E3C2E}
.article-body code{background:#EFF2E8;padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:740px;margin:0 auto;padding:48px 24px;text-align:center;
  border:1px dashed #CBD2C2;border-radius:var(--r-card);background:var(--white);
}
.empty-state p{color:var(--t2);margin-bottom:14px}
.empty-state a{color:var(--pine);font-weight:700;text-decoration:underline;text-underline-offset:3px}

/* ---------- 文末操作 ---------- */
.article-actions{
  max-width:740px;margin:26px auto 0;display:flex;flex-wrap:wrap;gap:12px;
}
.article-actions .btn{flex:1 1 auto}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(24px,3vw,34px)}
.section-head p{color:var(--t2);margin-top:10px;font-size:15px}
.related-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{border-color:var(--lime);transform:translateY(-2px)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8EBE1}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;top:12px;left:12px;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(12,19,16,.78);color:var(--lime);font-size:12px;display:inline-flex;align-items:center;letter-spacing:.06em;
}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{
  color:var(--t2);font-size:14px;line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3)}
.card-foot .arrow{display:inline-flex;align-items:center;gap:6px;color:var(--pine);font-weight:700;transition:transform .2s var(--ease)}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ---------- CTA 区 ---------- */
.cta-band{margin-top:88px;background:var(--ink);color:#fff;padding:64px 0}
.cta-box{
  display:grid;gap:28px;align-items:center;
  border:1px solid var(--line-dark);border-radius:20px;padding:32px 26px;
  background:radial-gradient(120% 140% at 88% 0%,rgba(198,242,78,.10),transparent 58%);
}
@media (min-width:900px){.cta-box{grid-template-columns:1.4fr .9fr;padding:44px 40px}}
.cta-box h2{font-size:clamp(24px,3.2vw,34px);color:#fff}
.cta-box p{color:rgba(255,255,255,.68);margin-top:14px;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:56px 0 30px;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.fb-text{color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.55);max-width:340px}
.site-footer h4{
  font-family:var(--font-sans);font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.44);
  text-transform:uppercase;margin-bottom:16px;font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--lime)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.44);
}

/* ---------- 浮动 CTA / 底部 Tab ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:70;
  display:none;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;
  background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;
  box-shadow:0 10px 30px rgba(12,19,16,.28);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{filter:brightness(1.06)}
@media (min-width:1024px){.float-cta{display:inline-flex}}

.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:flex;height:58px;background:var(--ink);
  border-top:1px solid rgba(255,255,255,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:rgba(255,255,255,.58);font-size:12px;position:relative;
}
.tabbar a svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tabbar a.is-active{color:var(--lime)}
.tabbar a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2px;background:var(--lime);border-radius:2px}
@media (min-width:1024px){.tabbar{display:none}}
@media (max-width:1023px){
  body{padding-bottom:140px}
  .float-cta{
    display:inline-flex;left:20px;right:20px;bottom:calc(66px + env(safe-area-inset-bottom));
    justify-content:center;height:48px;
  }
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);animation:rise .48s var(--ease) forwards}
.reveal.d1{animation-delay:.06s}
.reveal.d2{animation-delay:.12s}
.reveal.d3{animation-delay:.18s}
@keyframes rise{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0C1310;
  --ink-soft:#16201A;
  --lime:#C6F24E;
  --pine:#14513F;
  --coral:#FF5C3A;
  --paper:#F5F6F1;
  --white:#FFFFFF;
  --t1:#12180F;
  --t2:#5C6862;
  --t3:#8C968F;
  --line:#E3E6DC;
  --line-dark:rgba(198,242,78,.18);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,19,16,.04);
  --sh-2:0 8px 24px rgba(12,19,16,.06);
  --sh-3:0 18px 48px rgba(12,19,16,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --geo:"Futura","Avenir Next","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime);color:var(--ink)}

.container{
  width:100%;
  max-width:1224px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 48px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),backdrop-filter .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,19,16,.82);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-dark);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:68px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:10px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--geo);
  font-weight:700;
  font-size:14px;
  letter-spacing:.04em;
  flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-main{font-family:var(--serif);font-weight:800;font-size:16px;color:#fff;letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--t3);letter-spacing:.08em}
.nav-links{display:none;align-items:center;gap:2px}
.nav-links a{
  position:relative;
  padding:8px 12px;
  border-radius:8px;
  font-size:14.5px;
  color:rgba(255,255,255,.72);
  transition:color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(198,242,78,.08)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--lime)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-cta{display:none}

@media(min-width:1024px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .nav-inner{min-height:76px}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform .12s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);border-color:#d6ff68}
.btn-pine{background:var(--pine);color:#fff;border-color:var(--pine)}
.btn-pine:hover{filter:brightness(1.10);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:var(--lime);background:rgba(198,242,78,.10);transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--t1);border-color:var(--line)}
.btn-ghost-dark:hover{border-color:var(--pine);background:rgba(20,81,63,.06);transform:translateY(-1px)}
.btn:disabled{opacity:.38;pointer-events:none}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- Badges / labels ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  letter-spacing:.02em;
  background:rgba(20,81,63,.08);
  color:var(--pine);
  border:1px solid rgba(20,81,63,.14);
}
.badge-dark{
  background:rgba(198,242,78,.10);
  color:var(--lime);
  border-color:var(--line-dark);
}
.dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--coral);
  display:inline-block;
}

/* ---------- Breadcrumb ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  letter-spacing:.02em;
  padding:22px 0 0;
}
.crumb a{color:var(--t2)}
.crumb a:hover{color:var(--pine);text-decoration:underline}
.crumb .sep{color:var(--t3);opacity:.6}
.crumb .now{color:var(--t1);font-weight:600}

/* ---------- Page hero (small) ---------- */
.page-hero{
  background:var(--ink);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg,rgba(12,19,16,.94) 0%,rgba(12,19,16,.86) 46%,rgba(12,19,16,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.96;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(198,242,78,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(198,242,78,.055) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
  padding:28px 0 56px;
}
.hero-copy{max-width:640px}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--lime);
  text-transform:uppercase;
  margin-bottom:16px;
}
.hero-kicker .bar{width:26px;height:1px;background:var(--lime);display:inline-block}
.page-hero h1{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(30px,5.4vw,52px);
  line-height:1.14;
  letter-spacing:-.01em;
  color:#fff;
}
.page-hero h1 .hl{
  background:linear-gradient(transparent 66%,rgba(198,242,78,.34) 66%);
  padding:0 2px;
}
.hero-rule{
  width:48px;height:4px;
  background:var(--lime);
  border-radius:2px;
  margin:20px 0 18px;
}
.hero-lead{
  font-size:16.5px;
  line-height:1.9;
  color:rgba(255,255,255,.80);
  max-width:600px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-tags span{
  padding:6px 13px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:rgba(255,255,255,.82);
  border:1px solid var(--line-dark);
  background:rgba(198,242,78,.06);
}
.hero-figure{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line-dark);
  box-shadow:0 0 0 1px rgba(198,242,78,.06), inset 0 0 40px rgba(198,242,78,.05);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12.5px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.86);
  background:linear-gradient(to top,rgba(12,19,16,.88),rgba(12,19,16,0));
}
@media(min-width:900px){
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:48px;padding:36px 0 72px}
}

/* ---------- Section shell ---------- */
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-paper{background:var(--paper)}
.section-white{background:var(--white)}
.section-ink{background:var(--ink);color:#fff}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(25px,3.4vw,38px);
  line-height:1.24;
  letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--t2);font-size:16px}
.section-ink .section-head p{color:rgba(255,255,255,.72)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--pine);font-weight:600;margin-bottom:14px;
}
.section-ink .eyebrow{color:var(--lime)}
.eyebrow .bar{width:22px;height:1px;background:currentColor;display:inline-block}

/* ---------- Alternating rows (分类页1 专用) ---------- */
.rows{display:flex;flex-direction:column;gap:56px}
@media(min-width:1024px){.rows{gap:88px}}
.row{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
  align-items:center;
}
@media(min-width:900px){
  .row{grid-template-columns:1fr 1fr;gap:56px}
  .row.rev .row-media{order:2}
  .row.rev .row-body{order:1}
}
.row-media{
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--white);
  border:1px solid var(--line);
  box-shadow:var(--sh-1),var(--sh-2);
}
.row-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease)}
.row-media:hover img{transform:scale(1.03)}
.row-body .idx{
  font-family:var(--geo);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--pine);
  font-weight:600;
  display:block;
  margin-bottom:12px;
}
.row-body h2{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.28;
  letter-spacing:-.005em;
  margin-bottom:14px;
}
.row-body h2::after{
  content:"";
  display:block;
  width:44px;height:3px;
  border-radius:2px;
  background:var(--lime);
  margin-top:14px;
}
.row-body p{color:var(--t2);font-size:16px}
.row-body p + p{margin-top:14px}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  color:var(--t2);
  padding:10px 14px;
  border-radius:10px;
  background:var(--white);
  border:1px solid var(--line);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.check-list li:hover{border-color:rgba(198,242,78,.9);transform:translateY(-2px)}
.check-list .ck{
  width:18px;height:18px;flex-shrink:0;margin-top:4px;
  border-radius:50%;
  background:rgba(20,81,63,.10);
  color:var(--pine);
  display:inline-flex;align-items:center;justify-content:center;
}
.check-list .ck svg{width:10px;height:10px}

/* ---------- Steps (编号) ---------- */
.steps{margin-top:20px;display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.steps li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  align-items:flex-start;
  transition:background .18s var(--ease);
}
.steps li:hover{background:rgba(198,242,78,.06)}
.steps .num{
  font-family:var(--geo);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ink);
  background:var(--lime);
  border-radius:8px;
  min-width:34px;
  height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
  margin-top:5px;
}
.steps b{display:block;font-size:15.5px;color:var(--t1);font-weight:700;margin-bottom:2px}
.steps span{font-size:14.5px;color:var(--t2);line-height:1.85}

/* ---------- Notice strip ---------- */
.notice{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 20px;
  border-radius:var(--r-card);
  background:var(--white);
  border:1px solid var(--line);
  border-left:3px solid var(--coral);
  box-shadow:var(--sh-1);
}
.notice strong{font-size:15px;display:block;margin-bottom:4px}
.notice p{font-size:14.5px;color:var(--t2)}

/* ---------- Cross links ---------- */
.cross-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media(min-width:768px){.cross-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.cross-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1),var(--sh-2);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.cross-card:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--sh-1),var(--sh-3)}
.cross-card .thumb{overflow:hidden}
.cross-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s var(--ease)}
.cross-card:hover img{transform:scale(1.03)}
.cross-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cross-card h3{font-family:var(--serif);font-size:19px;font-weight:800;line-height:1.4}
.cross-card p{font-size:14.5px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cross-card .more{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--pine);
}
.cross-card .more svg{width:14px;height:14px;transition:transform .18s var(--ease)}
.cross-card:hover .more svg{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:900px){.faq-wrap{grid-template-columns:minmax(240px,320px) 1fr;gap:64px;align-items:start}}
.faq-side h2{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
}
.faq-side p{margin-top:14px;color:var(--t2);font-size:15px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 20px 0;
  background:none;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  color:var(--t1);
  position:relative;
  transition:color .18s var(--ease);
}
.faq-item .faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--lime);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-item .faq-q{padding-left:0;transition:padding-left .24s var(--ease)}
.faq-item.is-open .faq-q{padding-left:16px}
.faq-q:hover{color:var(--pine)}
.faq-q .ico{
  width:26px;height:26px;flex-shrink:0;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.faq-q .ico svg{width:12px;height:12px}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);border-color:var(--lime);background:rgba(198,242,78,.16)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 0 22px 0;
  font-size:15px;
  line-height:1.9;
  color:var(--t2);
  max-width:760px;
}
.faq-item.is-open .faq-a p{padding-left:16px}

/* ---------- CTA + form ---------- */
.cta-box{
  background:var(--ink);
  color:#fff;
  border-radius:18px;
  border:1px solid var(--line-dark);
  padding:36px 24px;
  position:relative;
  overflow:hidden;
}
.cta-box::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16),rgba(198,242,78,0) 68%);
  pointer-events:none;
}
@media(min-width:1024px){.cta-box{padding:56px 48px}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;position:relative;z-index:2}
@media(min-width:900px){.cta-grid{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}}
.cta-grid h2{
  font-family:var(--serif);
  font-weight:800;
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.24;
}
.cta-grid p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.form-card{
  background:rgba(255,255,255,.035);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:22px;
}
.form-card h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.01em}
.form-row{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:560px){.form-row{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.62)}
.field input,.field textarea{
  width:100%;
  padding:11px 14px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(12,19,16,.5);
  color:#fff;
  font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.34)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,242,78,.14);
}
.field-full{grid-column:1/-1}
.form-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:12px;line-height:1.7}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:32px;
  z-index:70;
  display:none;
  align-items:center;
  gap:8px;
  padding:13px 22px;
  border-radius:var(--r-pill);
  background:var(--lime);
  color:var(--ink);
  font-weight:700;
  font-size:14.5px;
  box-shadow:0 12px 30px rgba(12,19,16,.28);
  opacity:0;
  transform:translateY(10px);
  pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),filter .18s var(--ease);
}
.float-cta.is-on{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
@media(min-width:1024px){.float-cta{display:inline-flex}}

/* ---------- Mobile tab bar ---------- */
.tabbar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:90;
  background:rgba(12,19,16,.96);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line-dark);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  height:58px;
}
.tabbar a{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:12px;
  color:rgba(255,255,255,.62);
  position:relative;
  transition:color .18s var(--ease);
}
.tabbar a svg{width:20px;height:20px}
.tabbar a::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%) scaleX(0);
  width:22px;height:2px;
  background:var(--lime);
  border-radius:2px;
  transition:transform .22s var(--ease);
}
.tabbar a.is-active{color:var(--lime)}
.tabbar a.is-active::before{transform:translateX(-50%) scaleX(1)}
@media(min-width:1024px){.tabbar{display:none}}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.7);
  padding:56px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .fb-text{font-family:var(--serif);font-weight:800;font-size:16px;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);max-width:360px}
.site-footer h4{
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(255,255,255,.5);
  font-weight:700;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--lime)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(255,255,255,.66)}
.footer-contact b{color:rgba(255,255,255,.42);font-weight:600;margin-right:8px;font-size:12.5px;letter-spacing:.04em}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:12.5px;
  color:rgba(255,255,255,.46);
  letter-spacing:.02em;
}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{
  opacity:1;
  transform:translateY(0);
  transition:opacity .48s var(--ease),transform .48s var(--ease);
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
/* ============ 设计令牌 ============ */
:root{
  --ink:#0C1310;
  --lime:#C6F24E;
  --pine:#14513F;
  --coral:#FF5C3A;
  --paper:#F5F6F1;
  --white:#FFFFFF;
  --t1:#12180F;
  --t2:#5C6862;
  --t3:#8C968F;
  --line:#E3E6DC;
  --line-dark:rgba(198,242,78,.18);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(12,19,16,.04);
  --shadow-2:0 8px 24px rgba(12,19,16,.06);
  --shadow-3:0 14px 40px rgba(12,19,16,.09);
  --container:1200px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;
  --geo:"Helvetica Neue",Arial,"Segoe UI",var(--sans);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:76px;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1280px){
  .container{padding-left:48px;padding-right:48px;}
}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .12s var(--ease),background-color .12s var(--ease),
             border-color .12s var(--ease),filter .12s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{
  background:var(--lime);
  color:var(--ink);
  border:1px solid rgba(12,19,16,.06);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-outline{
  background:transparent;
  color:var(--lime);
  border:1px solid var(--line-dark);
}
.btn-outline:hover{background:rgba(198,242,78,.08);border-color:var(--lime);transform:translateY(-1px);}
.btn-pine{
  background:var(--pine);
  color:#fff;
  border:1px solid rgba(12,19,16,.05);
}
.btn-pine:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-ghost-light{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.6);transform:translateY(-1px);}
.btn[disabled],.btn:disabled{opacity:.38;pointer-events:none;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(12,19,16,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-dark);
  transition:background-color .2s var(--ease);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:34px;height:34px;
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--geo);
  font-size:13px;
  font-weight:800;
  letter-spacing:.03em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-main{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo-sub{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.52);}

.nav-links{display:none;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:14.5px;
  color:rgba(255,255,255,.72);
  padding:6px 0;
  transition:color .16s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--lime);
  transition:width .24s var(--ease);
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--lime);font-weight:700;}
.nav-links a.is-active::after{width:100%;}

.nav-cta{height:40px;padding:0 18px;font-size:14px;}

@media (min-width:1024px){
  .nav-links{display:flex;}
}
@media (max-width:1023px){
  .nav-cta{height:36px;padding:0 14px;font-size:13px;}
}

/* ============ 内页 Hero ============ */
.hero{
  position:relative;
  background:var(--ink);
  overflow:hidden;
  padding:52px 0 64px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.26;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,19,16,.72) 0%,rgba(12,19,16,.94) 100%);
}
.hero .container{position:relative;z-index:2;}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.5);
  margin-bottom:26px;
}
.crumbs a{color:rgba(255,255,255,.68);transition:color .16s var(--ease);}
.crumbs a:hover{color:var(--lime);}
.crumbs span.sep{color:rgba(255,255,255,.28);}

.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
.hero-copy{max-width:640px;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-dark);
  background:rgba(198,242,78,.07);
  color:var(--lime);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:20px;
}
.hero-tag i{
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  display:inline-block;
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,4.6vw,50px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.01em;
  color:#fff;
}
.hero-rule{
  width:48px;height:4px;border-radius:999px;
  background:var(--lime);
  margin:22px 0 20px;
}
.hero-desc{
  font-size:16.5px;
  line-height:1.9;
  color:rgba(255,255,255,.74);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-dark);
  box-shadow:0 0 0 1px rgba(198,242,78,.06),inset 0 0 40px rgba(198,242,78,.05);
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.hero-figure:hover img{transform:scale(1.03);}

@media (min-width:900px){
  .hero{padding:64px 0 84px;}
  .hero-grid{grid-template-columns:1.12fr .88fr;gap:56px;}
}

/* ============ 区块通用 ============ */
.section{padding:72px 0;}
.section-head{max-width:700px;margin-bottom:40px;}
.section-label{
  font-family:var(--geo);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--pine);
  margin-bottom:14px;
  display:block;
}
.section-title{
  font-family:var(--serif);
  font-size:clamp(26px,3.2vw,38px);
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.01em;
}
.section-title::after{
  content:"";
  display:block;
  width:40px;height:3px;border-radius:999px;
  background:var(--lime);
  margin-top:16px;
}
.section-sub{
  margin-top:18px;
  font-size:16px;
  color:var(--t2);
  line-height:1.9;
}
@media (min-width:1024px){
  .section{padding:104px 0;}
}

/* ============ 要点卡片 ============ */
.point-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
.point-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .24s var(--ease);
}
.point-card:hover{
  border-color:var(--lime);
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
}
.point-icon{
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:rgba(20,81,63,.08);
  color:var(--pine);
  margin-bottom:18px;
}
.point-icon svg{width:21px;height:21px;}
.point-card h3{
  font-family:var(--serif);
  font-size:20px;
  font-weight:800;
  margin-bottom:10px;
  line-height:1.4;
}
.point-card p{
  font-size:15px;
  color:var(--t2);
  line-height:1.9;
}
@media (min-width:768px){
  .point-grid{grid-template-columns:repeat(3,1fr);gap:24px;}
}

/* ============ 时间线 ============ */
.timeline-wrap{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:34px 24px 24px;
  box-shadow:var(--shadow-2);
}
.tl-item{
  position:relative;
  padding-left:60px;
  padding-bottom:36px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:19px;
  top:46px;
  bottom:4px;
  width:1px;
  background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-num{
  position:absolute;
  left:0;top:0;
  width:40px;height:40px;
  border-radius:999px;
  background:var(--pine);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--geo);
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  border:1px solid rgba(12,19,16,.06);
}
.tl-body h3{
  font-family:var(--serif);
  font-size:19px;
  font-weight:800;
  line-height:1.45;
  margin-bottom:8px;
  padding-top:5px;
}
.tl-body p{
  font-size:15.5px;
  color:var(--t2);
  line-height:1.95;
}
.tl-note{
  display:inline-block;
  margin-top:12px;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(198,242,78,.22);
  color:#41530f;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.03em;
}
@media (min-width:768px){
  .timeline-wrap{padding:46px 40px 34px;}
  .tl-item{padding-left:74px;padding-bottom:44px;}
  .tl-item::before{left:23px;top:50px;}
  .tl-num{width:48px;height:48px;font-size:15px;}
  .tl-body h3{font-size:21px;padding-top:9px;}
}

/* ============ 提示条 ============ */
.notice{
  margin-top:28px;
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--r-card);
  background:var(--ink);
  border:1px solid var(--line-dark);
}
.notice svg{width:20px;height:20px;flex:0 0 auto;color:var(--lime);margin-top:3px;}
.notice p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.76);}
.notice b{color:var(--lime);}

/* ============ 站内互链 ============ */
.link-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.link-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .24s var(--ease);
}
.link-card:hover{
  border-color:var(--lime);
  transform:translateY(-2px);
  box-shadow:var(--shadow-3);
}
.link-card figure{overflow:hidden;}
.link-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.link-card:hover img{transform:scale(1.03);}
.link-body{padding:22px 24px 24px;}
.link-body .badge{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--pine);
  background:rgba(20,81,63,.08);
  border-radius:999px;
  padding:3px 11px;
  margin-bottom:12px;
}
.link-body h3{
  font-family:var(--serif);
  font-size:20px;
  font-weight:800;
  line-height:1.4;
  margin-bottom:8px;
}
.link-body p{font-size:14.5px;color:var(--t2);line-height:1.85;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:700;
  color:var(--pine);
}
.link-more svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-card:hover .link-more svg{transform:translateX(4px);}
@media (min-width:768px){
  .link-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:28px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 14px 22px 0;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  position:relative;
  transition:color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:-14px;top:22px;bottom:22px;
  width:3px;border-radius:999px;
  background:var(--lime);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.faq-item summary:hover{color:var(--pine);}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary{color:var(--pine);}
.faq-item summary .chev{
  width:18px;height:18px;
  flex:0 0 auto;
  color:var(--t3);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--pine);}
.faq-answer{
  padding:0 0 24px 0;
  font-size:15px;
  line-height:1.95;
  color:var(--t2);
}
@media (min-width:900px){
  .faq-grid{grid-template-columns:.85fr 1.15fr;gap:56px;}
  .faq-item summary{padding-left:14px;}
}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
  padding:64px 0;
}
.cta-inner{
  display:flex;
  flex-direction:column;
  gap:26px;
  align-items:flex-start;
}
.cta-inner h2{
  font-family:var(--serif);
  font-size:clamp(24px,3vw,36px);
  font-weight:800;
  line-height:1.28;
  color:#fff;
}
.cta-inner p{
  margin-top:14px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.68);
  max-width:640px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:900px){
  .cta-band{padding:88px 0;}
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px;}
  .cta-actions{flex:0 0 auto;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.7);
  padding:64px 0 34px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.fb-text{font-size:16px;font-weight:800;color:#fff;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:340px;}
.footer-col h4{
  font-family:var(--geo);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(255,255,255,.45);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14.5px;
  color:rgba(255,255,255,.74);
  transition:color .16s var(--ease);
}
.footer-links a:hover{color:var(--lime);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:rgba(255,255,255,.7);}
.footer-contact b{
  display:inline-block;
  min-width:42px;
  color:rgba(255,255,255,.42);
  font-weight:600;
  margin-right:8px;
}
.footer-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.44);
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;}
}
@media (min-width:1024px){
  .site-footer{padding:80px 0 34px;}
}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:95;
  height:58px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(12,19,16,.97);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line-dark);
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.tabbar a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:11.5px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.55);
  transition:color .16s var(--ease);
}
.tabbar a svg{width:21px;height:21px;}
.tabbar a::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:0;height:2px;
  background:var(--lime);
  transition:width .2s var(--ease);
}
.tabbar a.is-active{color:var(--lime);}
.tabbar a.is-active::before{width:26px;}
@media (min-width:1024px){
  .tabbar{display:none;}
  body{padding-bottom:0;}
}

/* ============ 动效 ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .48s var(--ease),transform .48s var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

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

/* roulang page: category3 */
:root{
  --ink:#0C1310;
  --lime:#C6F24E;
  --pine:#14513F;
  --coral:#FF5C3A;
  --paper:#F5F6F1;
  --white:#FFFFFF;
  --t1:#12180F;
  --t2:#5C6862;
  --t3:#8C968F;
  --line:#E3E6DC;
  --line-dark:rgba(198,242,78,.18);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(12,19,16,.04), 0 8px 24px rgba(12,19,16,.06);
  --sh-2:0 1px 2px rgba(12,19,16,.06), 0 14px 34px rgba(12,19,16,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --geo:"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{padding-left:48px;padding-right:48px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),filter .18s var(--ease),box-shadow .18s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);border-color:#d8ff6b;box-shadow:0 8px 20px rgba(198,242,78,.22)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn-ghost:hover{border-color:var(--lime);background:rgba(198,242,78,.1);color:var(--lime);transform:translateY(-1px)}
.btn-dark{background:var(--pine);color:#fff;border-color:var(--pine)}
.btn-dark:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,81,63,.24)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(12,19,16,.94);
  border-bottom:1px solid rgba(198,242,78,.14);
  transition:background .24s var(--ease),backdrop-filter .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,19,16,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:rgba(198,242,78,.24);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:70px;
}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--geo);
  font-size:14px;font-weight:800;
  letter-spacing:.06em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{color:#fff;font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-sub{color:rgba(255,255,255,.5);font-size:11px;letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;
  padding:8px 13px;
  border-radius:9px;
  font-size:14.5px;
  font-weight:500;
  color:rgba(255,255,255,.72);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.is-active{color:var(--lime)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--lime);border-radius:2px;
}
.nav-cta{flex:none;margin-left:12px;height:42px;padding:0 18px;font-size:14.5px}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  padding:36px 0 60px;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.26;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(102deg,#0C1310 6%,rgba(12,19,16,.86) 46%,rgba(12,19,16,.42) 100%);
}
.page-hero > .container{position:relative;z-index:2}

.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;
  color:rgba(255,255,255,.5);
  margin-bottom:22px;
}
.crumbs a{transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--lime)}
.crumbs .sep{color:rgba(255,255,255,.28)}
.crumbs .now{color:rgba(255,255,255,.85)}

.hero-grid{display:grid;gap:36px;grid-template-columns:1fr;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(198,242,78,.12);
  border:1px solid var(--line-dark);
  color:var(--lime);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--coral)}
.page-hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,5.4vw,52px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.01em;
  margin:18px 0 0;
}
.h1-rule{width:48px;height:3px;background:var(--lime);border-radius:2px;margin:22px 0 0}
.hero-lead{
  margin-top:20px;
  max-width:58ch;
  font-size:17px;
  line-height:1.9;
  color:rgba(255,255,255,.78);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-dark);
  box-shadow:0 18px 48px rgba(0,0,0,.36);
  aspect-ratio:16/11;
  background:#101a15;
}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ============ 板块 ============ */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section--white{background:var(--white)}
.section--paper{background:var(--paper)}
.section--ink{background:var(--ink);color:#fff}

.sec-head{max-width:760px;margin-bottom:36px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--pine);
}
.sec-kicker::before{content:"";width:22px;height:1px;background:var(--pine)}
.section--ink .sec-kicker{color:var(--lime)}
.section--ink .sec-kicker::before{background:var(--lime)}
.sec-head h2{
  font-family:var(--serif);
  font-size:clamp(24px,3.4vw,36px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.005em;
  margin:14px 0 0;
}
.sec-head p{margin:16px 0 0;color:var(--t2);font-size:16px;max-width:66ch}
.section--ink .sec-head p{color:rgba(255,255,255,.7)}

/* ============ 对照式行表 ============ */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--white);
  box-shadow:var(--sh-1);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
table.matrix{width:100%;border-collapse:collapse;min-width:820px}
.matrix thead th{
  background:var(--ink);
  color:var(--lime);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  text-align:left;
  padding:17px 22px;
  white-space:nowrap;
}
.matrix thead th:first-child{border-top-left-radius:13px}
.matrix thead th:last-child{border-top-right-radius:13px}
.matrix tbody td{
  padding:19px 22px;
  border-top:1px solid var(--line);
  font-size:15px;
  line-height:1.75;
  color:var(--t2);
  vertical-align:top;
}
.matrix tbody tr:first-child td{border-top:0}
.matrix tbody td:first-child{
  color:var(--t1);
  font-weight:700;
  white-space:nowrap;
}
.matrix tbody tr{transition:background .18s var(--ease)}
.matrix tbody tr:hover{background:rgba(198,242,78,.08)}
.table-note{
  margin-top:14px;
  font-size:13px;
  color:var(--t3);
  letter-spacing:.02em;
}

/* 提示条 */
.tip-row{
  display:grid;gap:18px;grid-template-columns:1fr;
  margin-top:28px;
}
@media (min-width:768px){.tip-row{grid-template-columns:repeat(3,1fr)}}
.tip-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 22px 24px;
  box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.tip-card:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--sh-2)}
.tip-num{
  font-family:var(--geo);
  font-size:13px;font-weight:800;letter-spacing:.1em;
  color:var(--pine);
  display:inline-flex;align-items:center;gap:8px;
}
.tip-num::after{content:"";width:26px;height:1px;background:var(--line)}
.tip-card h3{font-size:17px;font-weight:700;margin:12px 0 0;line-height:1.5}
.tip-card p{margin:10px 0 0;font-size:14.5px;color:var(--t2);line-height:1.85}

/* ============ 折叠问答 ============ */
.acc{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.acc details{position:relative;border-top:1px solid var(--line)}
.acc details:first-child{border-top:0}
.acc details::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;
  background:var(--lime);
  transition:width .2s var(--ease);
}
.acc details[open]::before{width:3px}
.acc summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:20px 58px 20px 24px;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  color:var(--t1);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.acc summary::-webkit-details-marker{display:none}
.acc summary:hover{background:rgba(198,242,78,.07)}
.acc summary::after{
  content:"";
  position:absolute;right:24px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--t3);
  border-bottom:2px solid var(--t3);
  transform:translateY(-72%) rotate(45deg);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.acc details[open] summary{color:var(--pine)}
.acc details[open] summary::after{transform:translateY(-28%) rotate(-135deg);border-color:var(--pine)}
.acc-body{padding:0 24px 24px;font-size:15px;line-height:1.9;color:var(--t2)}
.acc-body p{margin:0}
.acc-body p + p{margin-top:10px}

/* ============ 站内互链 ============ */
.link-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:768px){.link-grid{grid-template-columns:1fr 1fr}}
.link-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.link-card:hover{border-color:var(--lime);transform:translateY(-2px);box-shadow:var(--sh-2)}
.link-tag{
  align-self:flex-start;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(20,81,63,.08);
  color:var(--pine);
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
}
.link-card h3{font-family:var(--serif);font-size:21px;font-weight:800;line-height:1.45}
.link-card p{font-size:14.5px;color:var(--t2);line-height:1.85}
.link-more{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--pine);
}
.link-more svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-card:hover .link-more svg{transform:translateX(4px)}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border:1px solid var(--line-dark);
  border-radius:18px;
  padding:40px 28px;
  display:flex;
  flex-direction:column;
  gap:26px;
  align-items:flex-start;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.18),rgba(198,242,78,0) 70%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{
  font-family:var(--serif);
  font-size:clamp(22px,3vw,32px);
  line-height:1.3;
  font-weight:800;
  color:#fff;
}
.cta-band p{
  margin-top:12px;
  max-width:56ch;
  font-size:15.5px;
  color:rgba(255,255,255,.72);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:48px 52px;gap:40px}
  .cta-actions{flex:none}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.7);
  padding:60px 0 26px;
  border-top:1px solid rgba(198,242,78,.12);
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1.1fr 1.1fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.fb-text{font-weight:700;color:#fff;font-size:16px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:38ch}
.footer-col h4{
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  color:rgba(255,255,255,.42);
  margin:0 0 16px;
  text-transform:uppercase;
}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s var(--ease)}
.footer-links a:hover{color:var(--lime)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(255,255,255,.66)}
.footer-contact b{color:rgba(255,255,255,.4);font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.42);
}

/* ============ 移动端底部导航 ============ */
.mobile-tab{display:none}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  body{padding-bottom:80px}
  .mobile-tab{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:90;
    background:rgba(12,19,16,.96);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-top:1px solid var(--line-dark);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{
    position:relative;
    height:58px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    font-size:11.5px;
    letter-spacing:.02em;
    color:rgba(255,255,255,.6);
    transition:color .18s var(--ease);
  }
  .mobile-tab a.is-active{color:var(--lime)}
  .mobile-tab a.is-active::before{
    content:"";
    position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:22px;height:2px;border-radius:2px;background:var(--lime);
  }
  .mobile-tab svg{width:20px;height:20px}
}

/* ============ 响应式细调 ============ */
@media (max-width:519px){
  .nav-inner{height:62px}
  .logo-mark{width:34px;height:34px;font-size:13px;border-radius:10px}
  .logo-main{font-size:15px}
  .page-hero{padding:26px 0 48px}
  .hero-actions .btn{flex:1 1 auto}
  .acc summary{font-size:16px;padding-right:52px}
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.12fr .88fr;gap:56px}
  .page-hero{padding:52px 0 76px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
}