/* roulang page: index */
:root{
  --bs-body-bg:#0A0B0D;
  --bs-body-color:#ECEEF1;
  --bs-primary:#C9FF3D;
  --bs-border-color:#23272E;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bg:#0A0B0D;
  --panel:#101216;
  --card:#121419;
  --card-2:#16191F;
  --line:#23272E;
  --line-2:#2A2F37;
  --text:#ECEEF1;
  --muted:#9BA3AD;
  --accent:#C9FF3D;
  --accent-soft:#D6FF66;
  --coral:#FF5A7A;
  --light:#F2F3EF;
  --light-line:#E3E5E0;
  --light-text:#14161A;
  --light-muted:#5A5F58;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-accent:0 8px 30px -12px rgba(201,255,61,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
  --section:clamp(72px,9vw,140px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease),background-color 220ms var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container-x{max-width:1280px}}

.section{padding:var(--section) 0}
.section-tight{padding:clamp(56px,6vw,88px) 0}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:16px;
}
.eyebrow-muted{color:var(--muted)}
.h2{font-size:clamp(1.6rem,2.8vw,2.3rem);line-height:1.2;font-weight:700}
.lead{color:var(--muted);font-size:16px;line-height:1.9}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px)}
.section-head p{margin-top:16px;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;
  line-height:1;transition:all 220ms var(--ease);white-space:nowrap;
}
.btn-primary-x{background:var(--accent);color:#0A0B0D;box-shadow:0 8px 30px -18px rgba(201,255,61,.45)}
.btn-primary-x:hover{background:var(--accent-soft);color:#0A0B0D;box-shadow:var(--shadow-accent)}
.btn-primary-x:active{transform:translateY(1px)}
.btn-ghost-x{background:transparent;color:var(--text);border:1px solid var(--line-2)}
.btn-ghost-x:hover{border-color:rgba(201,255,61,.6);color:#fff}
.btn-ghost-x:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--text);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-text .arrow{color:var(--muted);transition:transform 220ms var(--ease),color 220ms var(--ease)}
.btn-text:hover{color:var(--accent)}
.btn-text:hover .arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,11,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color 260ms var(--ease),background-color 260ms var(--ease);
}
.site-header.is-scrolled{border-bottom-color:rgba(201,255,61,.32);background:rgba(10,11,13,.92)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:8px;height:8px;background:var(--accent);border-radius:2px;box-shadow:0 0 12px rgba(201,255,61,.7)}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--muted);font-weight:500;border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--accent);
  opacity:0;transition:left 240ms var(--ease),right 240ms var(--ease),opacity 240ms var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{left:12px;right:12px;opacity:.6}
.nav-link.is-active{color:var(--accent);text-shadow:0 0 12px rgba(201,255,61,.35)}
.nav-link.is-active::after{left:12px;right:12px;opacity:1}
.header-cta{display:flex;align-items:center;gap:12px;margin-left:8px}
.header-cta .btn-x{padding:11px 22px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-2);border-radius:12px;
  align-items:center;justify-content:center;gap:4px;flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle:hover{border-color:rgba(201,255,61,.6)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease);z-index:1050;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,380px);background:var(--bg);
  border-left:1px solid var(--line);z-index:1060;transform:translateX(102%);
  transition:transform 280ms var(--ease);display:flex;flex-direction:column;padding:22px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:38px;height:38px;border:1px solid var(--line-2);border-radius:10px;font-size:18px;line-height:1;color:var(--muted)}
.drawer-close:hover{color:var(--accent);border-color:rgba(201,255,61,.5)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  padding:16px 12px;font-size:15.5px;color:var(--muted);border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--text)}
.drawer-nav a.is-active{color:var(--accent);border-left:3px solid var(--accent);padding-left:14px;background:rgba(201,255,61,.04)}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-cta .btn-x{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.55}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.25),rgba(10,11,13,.88));
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.06;
  background-image:linear-gradient(to right,#C9FF3D 1px,transparent 1px),linear-gradient(to bottom,#C9FF3D 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding:clamp(64px,9vw,120px) 0 clamp(56px,7vw,96px)}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4.2rem);line-height:1.08;font-weight:700;letter-spacing:-.02em;
  margin:0 0 22px;
}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line > span{display:block;animation:riseIn .7s var(--ease) both}
.hero h1 .line:nth-child(2) > span{animation-delay:.08s}
.hero-sub{font-size:clamp(1rem,1.5vw,1.125rem);color:var(--muted);max-width:560px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-point{display:flex;align-items:baseline;gap:8px}
.hero-point b{color:var(--accent);font-size:1.05rem;font-weight:700}
.hero-point span{font-size:12px;letter-spacing:.06em;color:var(--muted)}
.hero-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line)}
.hero-visual img{width:100%;height:100%;min-height:340px;object-fit:cover;border-radius:0}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.1),rgba(10,11,13,.72));
}
.hero-visual .tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
}
@keyframes riseIn{from{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}

/* ---------- 徽章 / 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--radius-pill);border:1px solid var(--line-2);color:var(--muted);
  background:rgba(10,11,13,.55);
}
.tag-accent{border-color:rgba(201,255,61,.5);color:var(--accent)}
.tag-coral{border-color:rgba(255,90,122,.5);color:var(--coral)}

/* ---------- 信任条 ---------- */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{padding:32px 24px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0}
.trust-item b{display:block;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;color:var(--text);letter-spacing:-.02em}
.trust-item b em{color:var(--accent);font-style:normal;font-size:.6em;margin-left:2px}
.trust-item span{display:block;font-size:13px;color:var(--muted);margin-top:6px;line-height:1.7}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;counter-reset:step}
.step{
  position:relative;padding:30px 26px 28px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.step::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--accent);
  opacity:0;transition:opacity 220ms var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.24)}
.step:hover::before{opacity:1}
.step-num{
  font-size:2.5rem;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(201,255,61,.85);letter-spacing:-.03em;margin-bottom:18px;
}
.step h3{font-size:1.15rem;font-weight:600;margin-bottom:12px}
.step p{color:var(--muted);font-size:15px;line-height:1.9}
.step .btn-text{margin-top:16px}

/* ---------- 亮色反转区（案例） ---------- */
.light-band{background:var(--light);color:var(--light-text);border-top:1px solid var(--light-line);border-bottom:1px solid var(--light-line)}
.light-band .h2,.light-band h3{color:var(--light-text)}
.light-band .eyebrow{color:#6E7A2E}
.light-band .section-head p{color:var(--light-muted)}
.case-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
.case-main,.case-side{background:#fff;border:1px solid var(--light-line);border-radius:12px;overflow:hidden}
.case-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.case-main-body{padding:26px 28px 30px}
.case-main-body h3{font-size:1.25rem;font-weight:600;margin-bottom:12px}
.case-main-body p{color:var(--light-muted);font-size:15px;line-height:1.85}
.case-stats{display:flex;gap:36px;margin-top:24px;padding-top:20px;border-top:1px solid var(--light-line)}
.case-stats div b{display:block;font-size:1.5rem;font-weight:700;letter-spacing:-.02em}
.case-stats div span{font-size:12.5px;color:var(--light-muted)}
.case-side-list{display:grid;grid-template-rows:1fr 1fr;gap:24px;height:100%}
.case-side{padding:24px 24px 26px;display:flex;flex-direction:column;justify-content:center;transition:border-color 220ms var(--ease)}
.case-side:hover{border-color:#B9C24E}
.case-side h3{font-size:1.05rem;font-weight:600;margin-bottom:10px}
.case-side p{color:var(--light-muted);font-size:14.5px;line-height:1.85}
.case-side .tag{border-color:#D6D9CC;color:#5A5F58;background:#F7F8F4;margin-bottom:14px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:500;color:var(--text);
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--accent-soft)}
.faq-item.is-open .faq-q{color:var(--accent)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border:1px solid var(--line-2);border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted);
  transition:transform 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);color:var(--accent);border-color:rgba(201,255,61,.5)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 180ms var(--ease)}
.faq-a-inner{padding:0 0 24px;max-width:820px;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ---------- 最新信息 ---------- */
.news-section{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px}
.news-lead{
  position:relative;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px;transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.news-lead::before,.news-mini::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--accent);opacity:0;
  transition:opacity 220ms var(--ease);
}
.news-lead:hover,.news-mini:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.24)}
.news-lead:hover::before,.news-mini:hover::before{opacity:1}
.news-lead h3{font-size:clamp(1.15rem,1.8vw,1.4rem);font-weight:600;line-height:1.45;margin:16px 0 12px}
.news-lead p{color:var(--muted);font-size:15px;line-height:1.85}
.news-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:auto;padding-top:22px}
.news-mini-list{display:grid;grid-template-rows:repeat(3,1fr);gap:16px}
.news-mini{
  position:relative;display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.news-mini h3{font-size:15px;font-weight:600;line-height:1.55;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini .news-meta{padding-top:6px;margin-top:0}
.news-card-foot{
  display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:18px;
  border-top:1px solid var(--line);font-size:13.5px;color:var(--muted);
}
.news-card-foot .arrow{transition:transform 220ms var(--ease),color 220ms var(--ease)}
.news-lead:hover .news-card-foot .arrow,.news-mini:hover .news-card-foot .arrow{transform:translateX(4px);color:var(--accent)}
.news-empty{
  border:1px dashed var(--line-2);border-radius:var(--radius-card);padding:56px 28px;text-align:center;
  background:var(--card);
}
.news-empty p{color:var(--muted);margin-bottom:18px}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid rgba(201,255,61,.3);border-radius:24px;background:var(--panel);
  padding:clamp(36px,5vw,64px);display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.25;font-weight:700;margin-bottom:16px}
.cta-band p{color:var(--muted);max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-x{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:clamp(48px,6vw,72px) 0 28px}
.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(--muted);font-size:14.5px;line-height:1.85;max-width:320px}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-bottom:18px;font-weight:600}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:14.5px;padding:6px 0;line-height:1.7}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:clamp(36px,5vw,56px);padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:13px;
}
.footer-bottom .note{line-height:1.7}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

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

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .main-nav{gap:2px}
  .nav-link{padding:8px 9px;font-size:14px}
}
@media (max-width:992px){
  .main-nav,.header-cta .btn-x{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero-visual img{min-height:260px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(3){border-left:0}
  .trust-item:nth-child(3),.trust-item:nth-child(4){border-top:1px solid var(--line)}
  .steps{grid-template-columns:1fr;gap:0}
  .step{background:transparent;border:0;border-radius:0;padding:0 0 32px 30px;position:relative}
  .step::before{display:none}
  .step::after{
    content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border-radius:50%;
    background:var(--accent);box-shadow:0 0 0 4px rgba(201,255,61,.12);
  }
  .steps{border-left:1px solid var(--line);margin-left:6px;padding-left:0}
  .step{padding-left:34px}
  .steps{border-left:1px solid var(--line)}
  .case-grid{grid-template-columns:1fr}
  .case-side-list{grid-template-rows:auto;gap:20px}
  .news-grid{grid-template-columns:1fr}
  .news-mini-list{grid-template-rows:auto;gap:16px}
  .cta-band{grid-template-columns:1fr;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .hero h1{font-size:clamp(2rem,7.4vw,2.4rem)}
  .section{padding:clamp(56px,10vw,80px) 0}
  .hero-actions .btn-x{flex:1 1 100%}
  .trust-item{padding:24px 18px}
  .case-stats{gap:24px;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:576px){
  body{font-size:16px;line-height:1.85}
  .container-x{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .brand-text{font-size:15.5px}
  .step,.faq-q{font-size:16px}
  .news-lead,.news-mini{padding:20px}
  .cta-band{padding:28px 22px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --ink:#0A0B0D;
  --panel:#101216;
  --card:#121419;
  --card-2:#16191F;
  --line:#23272E;
  --line-strong:#2A2F37;
  --text:#ECEEF1;
  --text-2:#9BA3AD;
  --lime:#C9FF3D;
  --lime-hi:#D6FF66;
  --coral:#FF5A7A;
  --invert-bg:#F2F3EF;
  --invert-text:#14161A;
  --invert-line:#E3E5E0;
  --radius:18px;
  --radius-sm:12px;
  --radius-img:14px;
  --shadow-lime:0 8px 30px -12px rgba(201,255,61,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --section:clamp(72px,9vw,140px);
  --bs-body-bg:#0A0B0D;
  --bs-body-color:#ECEEF1;
  --bs-border-color:#23272E;
  --bs-primary:#C9FF3D;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease),background-color 220ms var(--ease)}
a:hover{color:var(--lime)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
::selection{background:rgba(201,255,61,.28)}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){:root{--container:1280px}}

.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--lime);
  font-weight:600;
}
.eyebrow.muted{color:var(--text-2)}
.section{padding:var(--section) 0}
.section-head{margin-bottom:clamp(32px,4vw,56px)}
.section-head h2{font-size:clamp(1.6rem,2.8vw,2.3rem);line-height:1.2}
.section-head p{margin-top:14px;color:var(--text-2);max-width:640px}
.hairline{height:1px;background:linear-gradient(90deg,rgba(201,255,61,.55),rgba(35,39,46,0) 70%)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,11,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color 240ms var(--ease),background-color 240ms var(--ease);
}
.site-header.is-scrolled{border-bottom-color:rgba(201,255,61,.45);background:rgba(10,11,13,.92)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.01em}
.brand-mark{width:8px;height:8px;background:var(--lime);border-radius:2px;box-shadow:0 0 12px rgba(201,255,61,.7);flex:0 0 auto}
.brand-text{font-size:17px;color:var(--text)}
.brand:hover .brand-text{color:var(--lime)}
.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:4px;
  height:2px;
  background:var(--lime);
  opacity:0;
  transition:left 240ms var(--ease),right 240ms var(--ease),opacity 240ms var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{left:14px;right:14px;opacity:.6}
.nav-link.is-active{color:var(--lime);text-shadow:0 0 12px rgba(201,255,61,.35)}
.nav-link.is-active::after{left:14px;right:14px;opacity:1}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  background:transparent;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color 220ms var(--ease),color 220ms var(--ease);
}
.nav-toggle:hover{border-color:rgba(201,255,61,.6);color:var(--lime)}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--ink);
  padding:12px 0 24px;
}
.nav-drawer.is-open{display:block}
.nav-drawer .nav-link{
  display:block;
  padding:16px 4px;
  border-bottom:1px solid var(--line);
  border-radius:0;
  font-size:16px;
}
.nav-drawer .nav-link::after{display:none}
.nav-drawer .nav-link.is-active{
  color:var(--lime);
  border-left:3px solid var(--lime);
  padding-left:14px;
}
.nav-drawer .btn-primary-x{width:100%;margin-top:18px;justify-content:center}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.btn-primary-x{background:var(--lime);color:var(--ink);box-shadow:var(--shadow-lime)}
.btn-primary-x:hover{background:var(--lime-hi);color:var(--ink);box-shadow:0 12px 34px -12px rgba(201,255,61,.6)}
.btn-primary-x:active{transform:translateY(1px)}
.btn-ghost-x{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost-x:hover{border-color:rgba(201,255,61,.6);color:#fff}
.btn-ghost-x:active{transform:translateY(1px)}
.btn-text-x{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--text);font-size:15px;font-weight:600;
}
.btn-text-x .arrow{transition:transform 220ms var(--ease),color 220ms var(--ease)}
.btn-text-x:hover .arrow{transform:translateX(4px);color:var(--lime)}
.btn-x[disabled],.btn-x:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

.badge-x{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  font-size:12px;
  letter-spacing:.06em;
  border:1px solid rgba(201,255,61,.55);
  border-radius:999px;
  color:var(--lime);
  background:transparent;
}
.badge-x.coral{border-color:rgba(255,90,122,.6);color:var(--coral)}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;
  padding:clamp(36px,5vw,64px) 0 clamp(28px,4vw,48px);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,11,13,.72),rgba(10,11,13,.94)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.crumb{font-size:14px;color:var(--text-2);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--lime)}
.crumb .sep{color:#3a4049}
.crumb .current{
  max-width:52ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--text-2);
}
.article-title{
  margin-top:26px;
  font-size:clamp(1.75rem,3.4vw,2.6rem);
  line-height:1.25;
  max-width:900px;
}
.article-meta{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--text-2);
}
.article-meta .vline{width:1px;height:14px;background:var(--line-strong)}
.hero-rule{margin-top:26px}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:clamp(40px,5vw,72px) 0 var(--section)}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 240px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.reading{
  min-width:0;
  font-size:17px;
  line-height:1.9;
}
.reading p{margin:0 0 1.35em;color:#DCE0E5}
.reading h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);
  margin:48px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--lime);
  line-height:1.3;
}
.reading h3{font-size:20px;margin:34px 0 12px;color:#F4F6F8}
.reading h4{font-size:17px;margin:26px 0 10px;color:var(--lime)}
.reading img{margin:26px 0 10px;width:100%;background:var(--card)}
.reading figcaption,figcaption{font-size:13px;color:var(--text-2);text-align:center;line-height:1.7}
.reading blockquote{
  margin:26px 0;
  padding:20px 22px;
  background:var(--card);
  border-left:3px solid var(--lime);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#CFD4DA;
}
.reading blockquote p:last-child{margin-bottom:0}
.reading ul,.reading ol{margin:0 0 1.35em;padding-left:0}
.reading ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  color:#DCE0E5;
}
.reading ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  background:var(--lime);
  border-radius:2px;
}
.reading ol{counter-reset:li;list-style:none}
.reading ol li{
  position:relative;
  padding-left:30px;
  margin-bottom:10px;
  color:#DCE0E5;
  counter-increment:li;
}
.reading ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  color:var(--lime);
  font-size:14px;
  font-weight:600;
}
.reading a{
  color:var(--lime);
  background:rgba(201,255,61,.12);
  padding:1px 4px;
  border-radius:4px;
}
.reading a:hover{color:var(--lime-hi);text-decoration:underline}
.reading table{
  width:100%;
  margin:24px 0;
  border-collapse:collapse;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.reading thead th{
  background:var(--panel);
  color:var(--lime);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  font-weight:600;
  text-align:left;
}
.reading th,.reading td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.reading tbody tr:nth-child(odd){background:var(--card)}
.reading tbody tr:nth-child(even){background:var(--card-2)}
.reading code{
  background:var(--card);
  border:1px solid var(--line);
  padding:1px 6px;
  border-radius:6px;
  font-size:14px;
  color:var(--lime);
}
.table-scroll{overflow-x:auto;margin:24px 0;-webkit-overflow-scrolling:touch}

.article-aside{
  position:sticky;
  top:104px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  padding:22px;
}
.article-aside h4{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--text-2);
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:14px;
}
.aside-list li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.aside-list a{font-size:14px;line-height:1.7;color:var(--text-2);display:block}
.aside-list a:hover{color:var(--lime)}
.aside-note{
  margin-top:18px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.7;
  color:var(--text-2);
}

/* ---------- 空态 ---------- */
.empty-block{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  background:var(--card);
  padding:36px 28px;
  text-align:center;
}
.empty-block h3{font-size:1.15rem;margin-bottom:10px}
.empty-block p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px}
.related-head h2{font-size:clamp(1.25rem,2vw,1.6rem)}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mini-card{
  position:relative;
  display:block;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.mini-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(201,255,61,.9),rgba(201,255,61,0));
  opacity:0;
  transition:opacity 220ms var(--ease);
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.32)}
.mini-card:hover::before{opacity:1}
.mini-card h3{font-size:1.05rem;line-height:1.5;margin-bottom:14px}
.mini-meta{font-size:13px;color:var(--text-2);display:flex;gap:10px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  cursor:pointer;
  transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--lime)}
.faq-item.is-open .faq-q{color:var(--lime)}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform 240ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--lime);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:opacity 200ms var(--ease)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 180ms var(--ease);
}
.faq-a p{padding:0 0 22px;color:var(--text-2);font-size:15.5px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid rgba(201,255,61,.3);
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(201,255,61,.06),rgba(18,20,25,.9));
  padding:clamp(28px,4vw,54px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem)}
.cta-band p{color:var(--text-2);margin-top:12px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section);
  border-top:1px solid var(--line);
  background:var(--ink);
  padding:clamp(48px,6vw,72px) 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand p{margin-top:16px;color:var(--text-2);font-size:14px;max-width:280px}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:var(--text-2);text-transform:uppercase;margin-bottom:18px;font-weight:600}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.7}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-2);
}
.footer-bottom .note{color:#6f777f}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(8px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:40px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:64px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-aside{position:static;order:-1}
  .mini-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16.5px}
  .header-cta .btn-primary-x{display:none}
  .article-title{font-size:clamp(1.6rem,5.6vw,2.1rem)}
  .mini-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-x{flex:1 1 auto;justify-content:center}
  .crumb .current{max-width:32ch}
}
@media (max-width:576px){
  .container-x{padding:0 18px}
  body{font-size:16px;line-height:1.85}
  .reading{font-size:16px;line-height:1.85}
  .article-aside{padding:20px}
  .mini-card{padding:20px}
  .cta-band{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --bg:#0A0B0D;
  --panel:#101216;
  --card:#121419;
  --line:#23272E;
  --text:#ECEEF1;
  --muted:#9BA3AD;
  --neon:#C9FF3D;
  --neon-hover:#D6FF66;
  --neon-a12:rgba(201,255,61,.12);
  --neon-a24:rgba(201,255,61,.24);
  --neon-a30:rgba(201,255,61,.30);
  --coral:#FF5A7A;
  --light:#F2F3EF;
  --light-text:#14161A;
  --light-line:#E3E5E0;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --radius-input:12px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --section:clamp(72px,9vw,140px);
  --bs-body-bg:#0A0B0D;
  --bs-body-color:#ECEEF1;
  --bs-border-color:#23272E;
  --bs-primary:#C9FF3D;
  --bs-link-color:#ECEEF1;
  --bs-link-hover-color:#C9FF3D;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease),background-color 220ms var(--ease)}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
button{font-family:inherit;font-size:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px}

.container,.container-x{
  width:100%;
  max-width:1200px !important;
  margin-inline:auto;
  padding-inline:20px;
}
@media (min-width:1400px){
  .container,.container-x{max-width:1280px !important}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,11,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color 260ms var(--ease),background-color 260ms var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--neon-a30);
  background:rgba(10,11,13,.92);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:8px;height:8px;border-radius:2px;
  background:var(--neon);
  box-shadow:0 0 12px rgba(201,255,61,.55);
}
.brand-text{font-weight:600;font-size:1.05rem;letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:.95rem;
  color:var(--muted);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:0;
  height:2px;
  background:var(--neon);
  opacity:.6;
  transition:left 240ms var(--ease),right 240ms var(--ease),opacity 240ms var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{
  color:var(--neon);
  text-shadow:0 0 12px rgba(201,255,61,.35);
}
.nav-link.is-active::after{left:0;right:0;opacity:1}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  background:var(--neon);
  color:#0A0B0D;
  font-weight:600;
  font-size:.92rem;
  padding:10px 22px;
  border-radius:var(--radius-pill);
  border:1px solid var(--neon);
  transition:background-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 160ms var(--ease),color 220ms var(--ease);
}
.btn-neon:hover{background:var(--neon-hover);box-shadow:0 8px 30px -12px rgba(201,255,61,.45);color:#0A0B0D}
.btn-neon:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--text);
  font-weight:500;
  font-size:.95rem;
  padding:11px 24px;
  border-radius:var(--radius-pill);
  border:1px solid #2A2F37;
  transition:border-color 220ms var(--ease),color 220ms var(--ease),background-color 220ms var(--ease);
}
.btn-ghost:hover{border-color:rgba(201,255,61,.6);color:#fff}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid #2A2F37;
  color:var(--text);
  border-radius:var(--radius-pill);
  padding:8px 18px;
  font-size:.9rem;
  transition:border-color 220ms var(--ease),color 220ms var(--ease);
}
.nav-toggle:hover{border-color:rgba(201,255,61,.6);color:#fff}
.offcanvas.drawer{
  background:var(--bg);
  color:var(--text);
  border-left:1px solid var(--line);
  width:min(86vw,340px);
}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 22px;
  border-bottom:1px solid var(--line);
}
.drawer-body{padding:14px 0 28px}
.drawer-link{
  display:block;
  padding:16px 22px;
  color:var(--muted);
  border-bottom:1px solid var(--line);
  font-size:1rem;
}
.drawer-link:hover{color:var(--text)}
.drawer-link.is-active{
  color:var(--neon);
  border-left:3px solid var(--neon);
  padding-left:19px;
}
.drawer-cta{padding:22px}
.drawer-cta .btn-neon{width:100%}

/* ---------- page head ---------- */
.page-head{
  padding:clamp(48px,6vw,74px) 0 34px;
}
.breadcrumb-x{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:14px;color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb-x a:hover{color:var(--neon)}
.breadcrumb-x .sep{color:#3A4048}
.page-head h1{
  font-size:clamp(2rem,3.6vw,3rem);
  line-height:1.14;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:20ch;
  margin-bottom:18px;
}
.page-head .lede{
  color:var(--muted);
  max-width:62ch;
  font-size:1.02rem;
  margin-bottom:0;
}
.head-rule{
  height:1px;
  margin-top:30px;
  background:linear-gradient(90deg,var(--neon-a30),rgba(201,255,61,0) 78%);
}

/* ---------- section base ---------- */
.section{padding:clamp(48px,6vw,88px) 0}
.section-tight{padding:clamp(36px,4.5vw,64px) 0}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--neon);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow.muted{color:var(--muted)}

/* ---------- stats band ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat-item{
  padding:26px 22px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:none}
.stat-num{
  font-size:1.55rem;
  font-weight:700;
  color:var(--neon);
  letter-spacing:-.02em;
  line-height:1.2;
}
.stat-label{
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  margin-top:6px;
}

/* ---------- index layout ---------- */
.flow-block{
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
  margin-bottom:44px;
}
.flow-block:last-of-type{border-bottom:none;margin-bottom:0;padding-bottom:0}
.flow-head{display:flex;align-items:baseline;gap:16px;margin-bottom:14px}
.flow-num{
  font-size:1.05rem;
  font-weight:700;
  color:var(--neon);
  letter-spacing:.04em;
  flex-shrink:0;
}
.flow-block h2{
  font-size:clamp(1.35rem,2.1vw,1.7rem);
  line-height:1.3;
}
.flow-block p{color:var(--muted)}
.point-list{margin-top:18px;display:grid;gap:10px}
.point-list li{
  position:relative;
  padding-left:22px;
  color:var(--text);
  font-size:.98rem;
  line-height:1.8;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  background:var(--neon);
  border-radius:2px;
}
.flow-figure{
  margin-top:22px;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--card);
}
.flow-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;filter:saturate(.86)}
.flow-figure figcaption{
  font-size:13px;
  color:var(--muted);
  padding:10px 16px;
  border-top:1px solid var(--line);
}

/* ---------- anchor index ---------- */
.anchor-index{
  position:sticky;
  top:104px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--panel);
  padding:22px 8px 22px 22px;
}
.anchor-index .idx-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  margin-bottom:14px;
}
.anchor-list{display:grid;gap:2px}
.anchor-link{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:11px 12px 11px 0;
  font-size:.93rem;
  color:var(--muted);
  border-left:2px solid transparent;
  padding-left:12px;
}
.anchor-link .idx{font-size:.8rem;color:#4A5158;font-weight:600;letter-spacing:.04em}
.anchor-link:hover{color:var(--text)}
.anchor-link.is-active{color:var(--neon);border-left-color:var(--neon)}
.anchor-link.is-active .idx{color:var(--neon)}
.anchor-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  line-height:1.75;
}
.anchor-pills{display:none}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;
  border:none;
  text-align:left;
  color:var(--text);
  font-size:17px;
  font-weight:500;
  line-height:1.7;
  padding:22px 0;
  transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--neon)}
.faq-item.is-open .faq-q{color:var(--neon)}
.faq-icon{
  position:relative;
  width:16px;height:16px;flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1.5px}
.faq-icon::after{left:7.5px;top:0;width:1.5px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 180ms var(--ease);
}
.faq-a p{
  color:var(--muted);
  font-size:.97rem;
  line-height:1.9;
  padding-bottom:22px;
  margin:0;
  max-width:74ch;
}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--neon-a30);
  border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(201,255,61,.05),rgba(201,255,61,0) 70%),var(--panel);
  padding:clamp(32px,4.4vw,58px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2.05rem);line-height:1.25;margin-bottom:12px}
.cta-band p{color:var(--muted);margin:0;max-width:46ch;font-size:1rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  margin-top:clamp(48px,6vw,96px);
  padding-top:clamp(48px,5vw,72px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{
  color:var(--muted);
  font-size:.92rem;
  line-height:1.8;
  max-width:32ch;
  margin:0;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--text);
  font-weight:600;
  margin-bottom:16px;
}
.footer-col a,.footer-col span{
  display:block;
  color:var(--muted);
  font-size:.92rem;
  line-height:1.9;
  margin-bottom:8px;
}
.footer-col a:hover{color:var(--neon)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  color:var(--muted);
  font-size:13px;
}
.footer-bottom .note{color:#6E757E}

/* ---------- motion ---------- */
.fade-up{
  opacity:0;
  transform:translateY(8px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
.fade-up.is-in{opacity:1;transform:none}
.fade-up.d1{transition-delay:60ms}
.fade-up.d2{transition-delay:120ms}
.fade-up.d3{transition-delay:180ms}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .main-nav{gap:20px}
  .nav-link{font-size:.9rem}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-neon{display:none}
  .anchor-index{display:none}
  .anchor-pills{
    display:flex;
    gap:10px;
    overflow-x:auto;
    padding:14px 4px 18px;
    margin-bottom:8px;
    -webkit-overflow-scrolling:touch;
  }
  .anchor-pills a{
    flex:0 0 auto;
    font-size:13px;
    color:var(--muted);
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    padding:7px 14px;
    white-space:nowrap;
  }
  .anchor-pills a.is-active{color:var(--neon);border-color:var(--neon-a30)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stat-band{grid-template-columns:1fr 1fr}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:768px){
  body{font-size:16.5px}
  .page-head h1{max-width:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-neon,.cta-actions .btn-ghost{flex:1 1 100%;justify-content:center}
  .header-inner{min-height:66px;gap:14px}
  .brand-text{font-size:.98rem}
}
@media (max-width:576px){
  body{font-size:16px;line-height:1.85}
  .container,.container-x{padding-inline:16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .flow-block{padding-bottom:32px;margin-bottom:32px}
  .stat-item{padding:20px 16px}
  .faq-q{font-size:16px;padding:18px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .fade-up{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bs-body-bg:#0A0B0D;
  --bs-body-color:#ECEEF1;
  --bs-primary:#C9FF3D;
  --bs-border-color:#23272E;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bg:#0A0B0D;
  --panel:#101216;
  --card:#121419;
  --card2:#16191F;
  --line:#23272E;
  --line-soft:#2A2F37;
  --text:#ECEEF1;
  --muted:#9BA3AD;
  --lime:#C9FF3D;
  --lime-hover:#D6FF66;
  --coral:#FF5A7A;
  --light:#F2F3EF;
  --light-text:#14161A;
  --light-line:#E3E5E0;
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --r-field:12px;
  --container:1200px;
  --sec:clamp(72px,9vw,140px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease);}
a:hover{color:var(--lime);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .container-x{max-width:1280px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(10,11,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,#23272E 0%,rgba(201,255,61,.30) 50%,#23272E 100%) 1;
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,11,13,.94);
  box-shadow:0 10px 30px -22px rgba(201,255,61,.55);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:8px;height:8px;
  background:var(--lime);
  border-radius:2px;
  display:inline-block;
  box-shadow:0 0 14px rgba(201,255,61,.65);
}
.brand-text{
  font-size:1.05rem;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--lime);}

.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:.94rem;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:0;
  height:2px;
  background:var(--lime);
  opacity:0;
  transition:left 240ms var(--ease),right 240ms var(--ease),opacity 240ms var(--ease),background 220ms var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{
  left:0;right:0;opacity:.6;
  background:rgba(201,255,61,.6);
}
.nav-link.is-active{
  color:var(--lime);
  text-shadow:0 0 12px rgba(201,255,61,.35);
}
.nav-link.is-active::after{
  left:0;right:0;opacity:1;
}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  background:var(--lime);
  color:#0A0B0D;
  font-size:.9rem;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:background 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
  flex:0 0 auto;
}
.header-cta:hover{
  background:var(--lime-hover);
  color:#0A0B0D;
  box-shadow:0 8px 30px -12px rgba(201,255,61,.45);
}
.header-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:transparent;
  border:1px solid var(--line-soft);
  color:var(--text);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  font-size:1rem;
}
.nav-toggle:hover{border-color:rgba(201,255,61,.6);color:var(--lime);}

@media (max-width:992px){
  .main-nav{
    position:fixed;
    inset:72px 0 0 0;
    background:var(--bg);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 24px 40px;
    margin:0;
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .main-nav .nav-link{
    padding:16px 0 16px 14px;
    border-bottom:1px solid var(--line);
    font-size:1rem;
    color:var(--text);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{
    border-left:3px solid var(--lime);
    color:var(--lime);
  }
  .main-nav .nav-link:hover{color:var(--lime);}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .main-nav .nav-cta-mobile{
    display:inline-flex;
    justify-content:center;
    margin-top:22px;
    padding:14px 22px;
    border-radius:var(--r-btn);
    background:var(--lime);
    color:#0A0B0D;
    font-weight:600;
  }
}
@media (min-width:993px){
  .main-nav .nav-cta-mobile{display:none;}
}

/* ============ 页面头 ============ */
.page-head{
  position:relative;
  padding:clamp(38px,5vw,58px) 0 clamp(30px,4vw,44px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head-bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(10,11,13,.72) 0%,rgba(10,11,13,.94) 78%,rgba(10,11,13,1) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.55;
  pointer-events:none;
}
.page-head .container-x{position:relative;z-index:2;}
.breadcrumb-x{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.breadcrumb-x a{color:var(--muted);}
.breadcrumb-x a:hover{color:var(--lime);}
.breadcrumb-x .sep{color:#3A4048;}
.breadcrumb-x .cur{color:var(--text);}
.page-head h1{
  font-size:clamp(2rem,3.6vw,3rem);
  line-height:1.16;
  letter-spacing:-.022em;
  max-width:18em;
}
.page-head .lede{
  margin-top:18px;
  max-width:60ch;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.8;
}
.head-line{
  position:relative;
  z-index:2;
  margin-top:30px;
  height:1px;
  background:linear-gradient(90deg,rgba(201,255,61,.7) 0%,rgba(35,39,46,.15) 62%,transparent 100%);
}
@media (max-width:768px){
  .page-head h1{font-size:1.85rem;}
  .page-head .lede{font-size:15.5px;}
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0;}
.section-tight{padding:clamp(52px,6vw,88px) 0;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--lime);
  text-transform:uppercase;
}
.eyebrow.is-muted{color:var(--muted);}
.section-title{
  font-size:clamp(1.6rem,2.8vw,2.3rem);
  line-height:1.2;
  letter-spacing:-.02em;
}
.section-top{margin-bottom:clamp(30px,4vw,52px);}
.section-top p{
  margin-top:14px;
  color:var(--muted);
  max-width:66ch;
  font-size:16px;
}

/* ============ 交错图文 ============ */
.interleave-block + .interleave-block{
  margin-top:clamp(56px,7vw,104px);
  padding-top:clamp(48px,6vw,88px);
  border-top:1px solid var(--line);
}
.media-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
  aspect-ratio:4/3;
}
.media-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transform:scale(1.01);
  transition:transform 500ms var(--ease);
}
.media-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.12) 0%,rgba(10,11,13,.62) 100%);
  pointer-events:none;
}
.interleave-block:hover .media-figure img{transform:scale(1.045);}
.interleave-block:hover .media-figure{border-color:rgba(201,255,61,.24);}
.interleave-num{
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--lime);
  display:block;
  margin-bottom:14px;
}
.interleave-body h2{
  font-size:clamp(1.35rem,2.1vw,1.75rem);
  line-height:1.3;
  letter-spacing:-.015em;
}
.interleave-body p{
  margin-top:16px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.9;
}
.point-list{
  margin-top:22px;
  display:grid;
  gap:12px;
}
.point-list li{
  position:relative;
  padding-left:22px;
  color:var(--text);
  font-size:15.5px;
  line-height:1.8;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:7px;height:7px;
  background:var(--lime);
  border-radius:1.5px;
  opacity:.9;
}
.point-list li span{color:var(--muted);}

/* ============ 通道对照 ============ */
.matrix-wrap{
  margin-top:8px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  overflow:hidden;
}
.matrix-scroll{overflow-x:auto;}
.matrix{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:15px;
}
.matrix thead th{
  text-align:left;
  padding:20px 24px;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--lime);
  background:var(--panel);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.matrix tbody td{
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  vertical-align:top;
  line-height:1.75;
}
.matrix tbody tr:last-child td{border-bottom:none;}
.matrix tbody tr:nth-child(even){background:var(--card2);}
.matrix tbody td:first-child{
  color:var(--text);
  font-weight:600;
  white-space:nowrap;
}
.matrix tbody tr{transition:background 220ms var(--ease);}
.matrix tbody tr:hover{background:#171B21;}
.matrix-hint{
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
  display:none;
}
@media (max-width:576px){
  .matrix-hint{display:block;}
}

/* ============ 状态条 ============ */
.status-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.status-cell{
  padding:26px 22px;
  border-right:1px solid var(--line);
}
.status-cell:last-child{border-right:none;}
.status-cell .k{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:uppercase;
}
.status-cell .v{
  margin-top:10px;
  font-size:clamp(1.3rem,2vw,1.7rem);
  font-weight:700;
  color:var(--text);
  letter-spacing:-.02em;
}
.status-cell .v em{
  font-style:normal;
  color:var(--lime);
}
.status-cell .d{
  margin-top:6px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
@media (max-width:992px){
  .status-band{grid-template-columns:repeat(2,1fr);}
  .status-cell:nth-child(2){border-right:none;}
  .status-cell:nth-child(1),.status-cell:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:576px){
  .status-cell{padding:20px 18px;}
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
  max-width:900px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px;
  background:none;
  border:none;
  cursor:pointer;
  text-align:left;
  color:var(--text);
  font-size:17px;
  font-weight:500;
  line-height:1.6;
  transition:color 220ms var(--ease);
}
.faq-q:hover{color:var(--lime);}
.faq-item.is-open .faq-q{color:var(--lime);}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  margin-top:3px;
  position:relative;
  transition:transform 220ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:1px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:opacity 200ms var(--ease);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms var(--ease);
}
.faq-a-inner{
  padding:0 4px 26px;
  max-width:70ch;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.9;
}

/* ============ CTA ============ */
.cta-band{
  border:1px solid rgba(201,255,61,.3);
  border-radius:var(--r-card);
  background:linear-gradient(135deg,#101216 0%,#121419 52%,#0F1115 100%);
  padding:clamp(34px,4.6vw,58px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(1.5rem,2.5vw,2rem);
  line-height:1.26;
  letter-spacing:-.02em;
  max-width:22ch;
}
.cta-band p{
  margin-top:14px;
  color:var(--muted);
  font-size:16px;
  max-width:52ch;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:center;
}
.btn-lime,.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:.95rem;
  font-weight:600;
  cursor:pointer;
  border:1px solid transparent;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.btn-lime{background:var(--lime);color:#0A0B0D;}
.btn-lime:hover{
  background:var(--lime-hover);
  color:#0A0B0D;
  box-shadow:0 8px 30px -12px rgba(201,255,61,.45);
}
.btn-lime:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-soft);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(201,255,61,.6);
  color:#fff;
}
.btn-ghost:active{transform:translateY(1px);}
.text-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--text);
  font-size:.95rem;
  font-weight:600;
}
.text-cta i{transition:transform 220ms var(--ease),color 220ms var(--ease);color:var(--muted);}
.text-cta:hover{color:var(--lime);}
.text-cta:hover i{transform:translateX(4px);color:var(--lime);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:clamp(48px,6vw,76px) 0 26px;
  margin-top:clamp(60px,7vw,110px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  color:var(--muted);
  font-size:14.5px;
  line-height:1.8;
  max-width:32ch;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col a,.footer-col span{
  display:block;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.9;
  margin-bottom:8px;
}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:clamp(34px,4vw,52px);
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--muted);
}
.footer-bottom .note{color:#6F7780;}
@media (max-width:768px){
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* ============ 动效 ============ */
.reveal{
  opacity:0;
  transform:translateY(8px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
@media (max-width:576px){
  body{font-size:16px;line-height:1.85;}
  .container-x{padding:0 18px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0B0D;
  --panel:#101216;
  --card:#121419;
  --card-2:#16191F;
  --line:#23272E;
  --line-strong:#2A2F37;
  --text:#ECEEF1;
  --muted:#9BA3AD;
  --lime:#C9FF3D;
  --lime-hi:#D6FF66;
  --coral:#FF5A7A;
  --invert-bg:#F2F3EF;
  --invert-text:#14161A;
  --invert-line:#E3E5E0;
  --radius-card:18px;
  --radius-img:14px;
  --radius-pill:999px;
  --radius-field:12px;
  --container:1200px;
  --section-y:clamp(72px,9vw,140px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --glow:0 8px 30px -12px rgba(201,255,61,.45);

  --bs-primary:#C9FF3D;
  --bs-body-bg:#0A0B0D;
  --bs-body-color:#ECEEF1;
  --bs-border-color:#23272E;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-link-color:#ECEEF1;
  --bs-link-hover-color:#C9FF3D;
  --bs-body-font-family:var(--bs-font-sans-serif);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--lime)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.2}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){ .container-x{max-width:1280px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,11,13,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,rgba(35,39,46,0) 0%,rgba(201,255,61,.3) 50%,rgba(35,39,46,0) 100%);
  opacity:.5;
  transition:opacity .3s var(--ease);
}
.site-header.is-scrolled::after{opacity:1}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:8px;height:8px;border-radius:2px;
  background:var(--lime);
  box-shadow:0 0 12px rgba(201,255,61,.6);
  flex:none;
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;right:50%;bottom:0;
  height:2px;background:var(--lime);
  transition:left .24s var(--ease),right .24s var(--ease),opacity .24s var(--ease);
  opacity:0;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{left:0;right:0;opacity:.6}
.nav-link.is-active{
  color:var(--lime);
  text-shadow:0 0 12px rgba(201,255,61,.35);
}
.nav-link.is-active::after{left:0;right:0;opacity:1}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line-strong);
  border-radius:12px;
  align-items:center;justify-content:center;
  transition:border-color .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(201,255,61,.6)}
.nav-toggle span{
  display:block;width:18px;height:1.5px;background:var(--text);position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  display:none;
  position:fixed;
  inset:72px 0 0 0;
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:8px 0 32px;
  overflow-y:auto;
  z-index:55;
}
.drawer.is-open{display:block}
.drawer a{
  display:block;
  padding:18px 24px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer a.is-active{
  color:var(--lime);
  border-left:3px solid var(--lime);
  padding-left:21px;
}
.drawer .drawer-cta{padding:24px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  padding:13px 26px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
  border:1px solid transparent;
  line-height:1.2;
}
.btn-primary{
  background:var(--lime);
  color:#0A0B0D;
  box-shadow:0 8px 30px -18px rgba(201,255,61,.45);
}
.btn-primary:hover{background:var(--lime-hi);color:#0A0B0D;box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(201,255,61,.6);color:#fff}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.text-cta{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--text);font-weight:600;font-size:15px;
}
.text-cta .arrow{transition:transform .22s var(--ease),color .22s var(--ease)}
.text-cta:hover .arrow{transform:translateX(4px);color:var(--lime)}

/* ---------- page head ---------- */
.page-head{padding:clamp(48px,7vw,84px) 0 clamp(36px,5vw,56px)}
.breadcrumb-x{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);
  margin-bottom:24px;
}
.breadcrumb-x a{color:var(--muted)}
.breadcrumb-x a:hover{color:var(--lime)}
.breadcrumb-x .sep{color:var(--line-strong)}
.breadcrumb-x .current{color:var(--text)}
.page-head h1{
  font-size:clamp(2rem,3.6vw,3rem);
  line-height:1.16;
  margin-bottom:18px;
  max-width:900px;
}
.page-sub{
  color:var(--muted);
  max-width:760px;
  font-size:17px;
}
.head-rule{
  height:1px;margin-top:34px;
  background:linear-gradient(90deg,rgba(201,255,61,.55) 0%,rgba(201,255,61,.1) 40%,rgba(35,39,46,0) 100%);
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--lime);
  margin-bottom:16px;
  text-transform:uppercase;
}

/* ---------- sections ---------- */
section{padding:var(--section-y) 0}
.section-tight{padding-top:0}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,56px)}
.section-head h2{
  font-size:clamp(1.6rem,2.8vw,2.3rem);
  margin-bottom:14px;
}
.section-head p{color:var(--muted)}

/* ---------- info cards (不等高两列) ---------- */
.info-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
  align-items:start;
}
.info-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
  overflow:hidden;
}
.info-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(201,255,61,0),rgba(201,255,61,.75),rgba(201,255,61,0));
  opacity:0;transition:opacity .22s var(--ease);
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(201,255,61,.24)}
.info-card:hover::before{opacity:1}
.info-card h3{font-size:1.2rem;margin-bottom:14px}
.info-card p{color:var(--muted);font-size:16px}
.info-card.tall{padding:32px}
.card-figure{
  margin:22px 0 0;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
}
.card-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.86)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.badge-x{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(201,255,61,.45);
  color:var(--lime);
  background:transparent;
}
.badge-x.alert{border-color:rgba(255,90,122,.55);color:var(--coral)}
.mini-list{margin-top:18px;display:grid;gap:12px}
.mini-list li{
  position:relative;
  padding-left:18px;
  color:var(--muted);
  font-size:15px;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:1px;background:var(--lime);
}

/* ---------- matrix ---------- */
.matrix-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
}
.matrix-scroll{overflow-x:auto}
table.matrix{
  width:100%;
  min-width:760px;
  border-collapse:collapse;
  background:transparent;
}
table.matrix th{
  text-align:left;
  font-size:12px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--lime);
  padding:22px 24px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
  background:var(--panel);
}
table.matrix td{
  padding:22px 24px;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:15px;
  vertical-align:top;
}
table.matrix tbody tr:nth-child(odd) td{background:var(--card)}
table.matrix tbody tr:nth-child(even) td{background:var(--card-2)}
table.matrix tbody tr:last-child td{border-bottom:0}
table.matrix td:first-child{color:var(--text);font-weight:500;width:30%}
table.matrix tbody tr:hover td{background:rgba(201,255,61,.045)}
.matrix-hint{
  display:none;
  font-size:13px;color:var(--muted);
  padding:12px 24px 18px;
}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:38px;
  display:grid;
  gap:34px;
}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:10px;
  width:1px;background:var(--line);
}
.timeline-item{position:relative}
.timeline-item::before{
  content:"";position:absolute;left:-38px;top:9px;
  width:15px;height:15px;border-radius:50%;
  background:var(--bg);
  border:2px solid var(--lime);
  box-shadow:0 0 14px rgba(201,255,61,.45);
}
.timeline-item .step-no{
  font-size:12px;letter-spacing:.14em;color:var(--lime);
  display:block;margin-bottom:8px;
}
.timeline-item h3{font-size:1.1rem;margin-bottom:8px}
.timeline-item p{color:var(--muted);font-size:16px;max-width:720px}

/* ---------- safety list ---------- */
.safety-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:clamp(32px,5vw,72px);
  align-items:start;
}
.safety-grid h2{font-size:clamp(1.6rem,2.8vw,2.3rem);margin-bottom:16px}
.safety-grid .lead{color:var(--muted);max-width:460px}
.check-list{display:grid;gap:0;border-top:1px solid var(--line)}
.check-list li{
  display:flex;gap:16px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.check-list .mark{
  flex:none;
  width:22px;height:22px;border-radius:6px;
  border:1px solid rgba(201,255,61,.5);
  color:var(--lime);
  font-size:12px;
  display:flex;align-items:center;justify-content:center;
  margin-top:5px;
}
.check-list strong{display:block;font-weight:600;font-size:16px;margin-bottom:6px}
.check-list span{color:var(--muted);font-size:15px}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  text-align:left;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--lime)}
.faq-item.is-open .faq-q{color:var(--lime)}
.faq-icon{
  flex:none;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);
  border-radius:8px;
  color:var(--lime);
  font-size:15px;
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);border-color:rgba(201,255,61,.5)}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .18s var(--ease);
}
.faq-a-inner{
  padding:0 44px 24px 0;
  color:var(--muted);
  font-size:16px;
}

/* ---------- cta ---------- */
.cta-band{
  border:1px solid rgba(201,255,61,.3);
  border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(201,255,61,.05),rgba(10,11,13,0) 60%),var(--panel);
  padding:clamp(32px,5vw,64px);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:12px}
.cta-band p{color:var(--muted);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--section-y);
  border-top:1px solid var(--line);
  background:var(--bg);
  padding:clamp(48px,6vw,72px) 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14px;max-width:300px}
.footer-col h4{
  font-size:13px;letter-spacing:.1em;color:var(--muted);
  font-weight:600;margin-bottom:18px;
}
.footer-col a,.footer-col span{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:12px;
  line-height:1.7;
}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;
  justify-content:space-between;
  padding-top:24px;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom .note{color:#6C737C}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .main-nav{gap:20px}
  .nav-link{font-size:14px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .info-grid{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .matrix-hint{display:block}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.85}
  .page-head h1{font-size:clamp(1.7rem,6vw,2.2rem)}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 200px}
  .footer-col a,.footer-col span{font-size:13px}
}
@media (max-width:576px){
  .container-x{padding:0 18px}
  .info-card{padding:20px}
  .check-list li{padding:18px 0}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  table.matrix th,table.matrix td{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}