/* roulang page: index */
:root{
  --c-primary:#F2542D;
  --c-primary-6:#D63F1A;
  --c-primary-soft:#FFEDE7;
  --c-accent:#00A88E;
  --c-accent-soft:#E4F6F2;
  --c-highlight:#FFC53D;
  --c-ink:#16181D;
  --c-ink-2:#23262D;
  --c-bg:#FAF8F5;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFEA;
  --c-line:#E4DFD8;
  --c-text:#1C1E22;
  --c-text-2:#5C6270;
  --c-text-3:#8A909C;
  --c-success:#17A673;
  --c-danger:#E0483C;
  --c-warn:#F0A020;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(22,24,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,24,29,.18);
  --sh-3:0 18px 44px -20px rgba(22,24,29,.28);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:.01em;}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25;}
h2{font-size:clamp(21px,2.1vw,24px);line-height:1.4;}
h3{font-size:18px;line-height:1.5;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease,opacity .18s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -12px rgba(242,84,45,.9);}
.btn-primary:hover{background:var(--c-primary-6);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);}
.btn-lg{min-height:48px;padding:0 26px;font-size:16px;}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;}
.btn.is-loading::before{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  box-shadow:var(--sh-1);
  transition:background .2s ease,box-shadow .2s ease;
}
body.page-home .site-header:not(.is-scrolled){background:transparent;box-shadow:none;}
.site-header.is-scrolled{background:rgba(255,255,255,.98);box-shadow:var(--sh-2);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:inline-flex;align-items:baseline;font-size:19px;font-weight:700;letter-spacing:.01em;flex:0 0 auto;}
.logo-mark{color:var(--c-primary);}
.logo-sub{font-size:14px;font-weight:600;color:var(--c-text-3);margin-left:2px;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  transition:color .18s ease;padding:4px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  border-radius:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.link-quiet{font-size:14px;font-weight:500;color:var(--c-text-2);transition:color .18s ease;}
.link-quiet:hover{color:var(--c-primary);}
body.page-home .site-header:not(.is-scrolled) .nav-link{color:rgba(255,255,255,.84);}
body.page-home .site-header:not(.is-scrolled) .nav-link:hover,
body.page-home .site-header:not(.is-scrolled) .nav-link.is-active{color:#fff;}
body.page-home .site-header:not(.is-scrolled) .link-quiet{color:rgba(255,255,255,.8);}
body.page-home .site-header:not(.is-scrolled) .logo-sub{color:rgba(255,255,255,.72);}

/* ============ 首屏 ============ */
.hero{position:relative;margin-top:-72px;padding-top:72px;background:var(--c-ink);color:#fff;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,24,29,.74) 0%,rgba(22,24,29,.94) 100%);}
.hero-inner{
  position:relative;z-index:2;
  display:flex;align-items:flex-end;justify-content:space-between;gap:48px;
  min-height:520px;padding-top:112px;padding-bottom:64px;
}
.hero-copy{max-width:620px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(242,84,45,.18);border:1px solid rgba(242,84,45,.55);
  color:#FFD9CD;font-size:13px;font-weight:600;
}
.hero h1{color:#fff;margin:18px 0 14px;}
.hero-sub{color:rgba(255,255,255,.78);font-size:17px;line-height:1.75;max-width:560px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-pills li{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.86);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,168,142,.18);}
.dot-live{background:var(--c-danger);box-shadow:0 0 0 4px rgba(224,72,60,.22);animation:pulse 1.6s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* 倒计时 */
.countdown{
  flex:0 0 auto;width:480px;max-width:100%;
  background:var(--c-ink-2);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-lg);padding:20px 22px 18px;box-shadow:var(--sh-3);
  transition:background .3s ease,border-color .3s ease;
}
.countdown-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:12px;}
.cd-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.72);}
.cd-status{
  font-size:12px;font-weight:600;color:var(--c-highlight);
  border:1px solid rgba(255,197,61,.4);background:rgba(255,197,61,.12);
  border-radius:999px;padding:2px 10px;white-space:nowrap;
}
.cd-grid{display:flex;align-items:center;gap:6px;}
.cd-cell{flex:1;text-align:center;background:rgba(255,255,255,.05);border-radius:var(--r-md);padding:10px 4px;transition:background .3s ease;}
.cd-num{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;line-height:1.05;color:var(--c-highlight);
}
.cd-unit{font-size:12px;color:rgba(255,255,255,.6);}
.cd-sep{color:rgba(255,255,255,.28);font-family:var(--font-num);font-size:20px;line-height:1;}
.cd-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6);line-height:1.6;}
.countdown.is-live{background:var(--c-primary);border-color:transparent;}
.countdown.is-live .cd-num{color:#fff;}
.countdown.is-live .cd-cell{background:rgba(255,255,255,.16);}
.countdown.is-live .cd-status{background:#fff;color:var(--c-primary-6);border-color:#fff;}
.countdown.is-live .cd-title,
.countdown.is-live .cd-note,
.countdown.is-live .cd-unit{color:rgba(255,255,255,.88);}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-primary);margin-bottom:10px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more::after{content:"→";transition:transform .2s ease;}
.link-more:hover::after{transform:translateX(3px);}

/* 看点列表 */
.hl-list{border-top:1px solid var(--c-line);}
.hl-item{
  display:flex;gap:24px;padding:24px 16px 24px 0;
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease,transform .2s ease;
}
.hl-item:hover{background:var(--c-surface);transform:translateX(4px);}
.hl-num{
  flex:0 0 56px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;color:var(--c-primary);line-height:1.3;
}
.hl-body h3{margin-bottom:6px;}
.hl-body p{font-size:14px;line-height:1.75;color:var(--c-text-2);max-width:760px;}

/* 订阅 */
.sub-card{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:40px;box-shadow:var(--sh-1);
}
.sub-copy h2{margin-bottom:10px;}
.sub-copy p{font-size:15px;line-height:1.8;color:var(--c-text-2);}
.sub-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;}
.field{flex:1 1 220px;min-width:0;}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-bg);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,84,45,.18);background:#fff;}
.field.has-error input{border-color:var(--c-danger);box-shadow:0 0 0 3px rgba(224,72,60,.14);}
.field-err{font-size:13px;line-height:1.5;color:var(--c-danger);margin-top:6px;}
.sub-agree{
  flex:1 1 100%;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-2);cursor:pointer;
}
.sub-agree input{width:16px;height:16px;accent-color:var(--c-primary);}
.sub-ok{
  flex:1 1 100%;display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--c-success);font-weight:600;
  background:var(--c-accent-soft);border-radius:var(--r-sm);padding:10px 14px;
}
.sub-ok::before{content:"✓";font-weight:700;}

/* 回放 */
.replay-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto;gap:24px;}
.replay-main{
  position:relative;grid-row:1 / span 2;border-radius:var(--r-lg);overflow:hidden;
  background:var(--c-ink);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.replay-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.replay-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.7;transition:opacity .25s ease,transform .4s ease;}
.replay-main:hover img{opacity:.85;transform:scale(1.03);}
.replay-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,24,29,.02) 38%,rgba(22,24,29,.88) 100%);
}
.replay-body{
  position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:400px;padding:28px;
}
.replay-body h3{color:#fff;margin:12px 0 8px;}
.replay-body p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.76);max-width:420px;}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(242,84,45,.9);color:#fff;font-size:12px;font-weight:600;width:max-content;
}
.dur{
  position:absolute;right:16px;bottom:16px;z-index:3;
  background:rgba(22,24,29,.62);color:#fff;font-size:12px;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  padding:2px 8px;border-radius:6px;
}
.play-icon{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:58px;height:58px;border-radius:50%;
  border:2px solid rgba(255,255,255,.75);background:rgba(22,24,29,.34);
  display:flex;align-items:center;justify-content:center;
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.replay-main:hover .play-icon{transform:translate(-50%,-50%) scale(1.06);border-color:var(--c-primary);background:rgba(242,84,45,.4);}
.play-icon svg{width:22px;height:22px;fill:#fff;}
.replay-side{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:14px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.replay-side:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DCD5CB;}
.replay-side img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);}
.replay-side h3{font-size:16px;line-height:1.5;margin-bottom:6px;transition:color .18s ease;}
.replay-side:hover h3{color:var(--c-primary);}
.replay-side p{font-size:13px;line-height:1.7;color:var(--c-text-2);}
.replay-side .meta{display:block;margin-top:8px;font-size:12px;color:var(--c-text-3);}

/* 最新动态 */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DCD5CB;}
.news-link{display:block;height:100%;padding:22px 24px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-6);font-size:12px;font-weight:600;
}
.news-title{
  font-size:17px;line-height:1.55;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-title{color:var(--c-primary);}
.news-desc{
  font-size:14px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.news-go{color:var(--c-primary);font-weight:600;}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;text-align:center;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);
  color:var(--c-text-2);font-size:15px;
}
.news-empty svg{width:34px;height:34px;stroke:var(--c-text-3);fill:none;stroke-width:1.5;}
.news-skeleton{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.sk-card{height:168px;border-radius:var(--r-lg);background:var(--c-surface-2);position:relative;overflow:hidden;}
.sk-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);
  animation:shimmer 1.4s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%);}100%{transform:translateX(100%);}}

/* 平台能力 */
.cap-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:center;}
.cap-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface-2);}
.cap-media img{width:100%;aspect-ratio:4/5;object-fit:cover;}
.cap-lead{font-size:15px;line-height:1.85;color:var(--c-text-2);margin:12px 0 26px;max-width:560px;}
.cap-list{border-top:1px solid var(--c-line);}
.cap-list li{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--c-line);}
.cap-num{
  flex:0 0 44px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:16px;font-weight:700;color:var(--c-accent);line-height:1.7;
}
.cap-list h3{font-size:16px;margin-bottom:4px;}
.cap-list p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* FAQ */
.faq-list{border-top:1px solid var(--c-line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 0 16px 18px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);transition:color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:20px;border-radius:2px;
  background:var(--c-primary);transform:translateY(-50%) scaleY(0);transition:transform .22s ease;
}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-q::before{transform:translateY(-50%) scaleY(1);}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;width:20px;height:20px;position:relative;
  transition:transform .24s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-3);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;transition:transform .24s ease;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 18px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* 底部 CTA */
.cta-section{padding:0 0 80px;}
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--c-ink);border-radius:var(--r-xl);padding:44px 48px;
}
.cta-band::before{
  content:"";position:absolute;top:-160px;right:-80px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,45,.22),transparent 70%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;margin-bottom:8px;}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .logo{font-size:18px;}
.site-footer .logo-sub{color:rgba(255,255,255,.6);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin-top:14px;max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease;}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-note{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* 移动端底部 Tab */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:rgba(255,255,255,.98);border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px -14px rgba(22,24,29,.35);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(3,1fr);height:56px;}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:11px;color:var(--c-text-3);transition:color .18s ease;
}
.tab-item svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.tab-item.is-active{color:var(--c-primary);font-weight:600;}
.tab-item.is-active svg{transform:translateY(-2px);}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:2px;border-radius:0 0 2px 2px;background:var(--c-primary);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1120px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .hero-inner{flex-direction:column;align-items:stretch;gap:32px;min-height:auto;padding-top:104px;padding-bottom:52px;}
  .countdown{width:100%;}
  .sub-card{grid-template-columns:1fr;gap:28px;padding:32px;}
  .replay-grid{grid-template-columns:1fr;grid-template-rows:none;}
  .replay-main{grid-row:auto;}
  .replay-body{min-height:320px;}
  .cap-grid{grid-template-columns:1fr;gap:32px;}
  .cap-media img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media (max-width:768px){
  .main-nav{margin-left:0;gap:20px;}
  .nav-link{font-size:14px;}
  .header-actions .link-quiet{display:none;}
  .news-grid,.news-skeleton{grid-template-columns:1fr;}
}
@media (max-width:767px){
  body{padding-bottom:72px;}
  .site-header .main-nav,
  .site-header .header-actions{display:none;}
  .tabbar{display:block;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:24px;}
  .hero-inner{padding-top:92px;padding-bottom:44px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-cta .btn{width:100%;}
  .cd-num{font-size:28px;}
  .cd-cell{padding:8px 2px;}
  .hl-item{gap:16px;padding:20px 12px 20px 0;}
  .hl-num{flex:0 0 34px;font-size:20px;}
  .replay-side{grid-template-columns:1fr;gap:12px;}
  .replay-side img{aspect-ratio:16/9;}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg);}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .sub-card{padding:24px;border-radius:var(--r-lg);}
  .sub-form .btn{width:100%;}
}

/* roulang page: article */
:root{
  --c-primary:#F2542D;
  --c-primary-6:#D63F1A;
  --c-primary-soft:#FFEDE7;
  --c-accent:#00A88E;
  --c-accent-soft:#E4F6F2;
  --c-highlight:#FFC53D;
  --c-ink:#16181D;
  --c-ink-2:#23262D;
  --c-bg:#FAF8F5;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFEA;
  --c-line:#E4DFD8;
  --c-text:#1C1E22;
  --c-text-2:#5C6270;
  --c-text-3:#8A909C;
  --c-success:#17A673;
  --c-danger:#E0483C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(22,24,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,24,29,.18);
  --sh-3:0 18px 44px -20px rgba(22,24,29,.28);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --w-container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-text);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 20px;}
.tabbar{display:none;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,245,.94);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(160%) blur(0);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.logo-mark{color:var(--c-primary);}
.logo-sub{color:var(--c-text-2);font-weight:600;}
.logo:hover .logo-sub{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:26px;margin-right:auto;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;font-size:15px;font-weight:500;color:var(--c-text-2);}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--c-primary);border-radius:2px;transform:scaleX(0);transition:transform .2s ease;}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:18px;}
.link-quiet{font-size:14px;color:var(--c-text-2);}
.link-quiet:hover{color:var(--c-primary);text-decoration:underline;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
  min-width:44px;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -12px rgba(242,84,45,.7);}
.btn-primary:hover{background:var(--c-primary-6);color:#fff;}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);}
.btn-outline-light{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);padding:16px 0;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-line);}
.crumb .current{color:var(--c-text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{padding:44px 0 32px;}
.article-hero-inner{max-width:860px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-6);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.badge-cat::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.article-title{
  font-size:34px;line-height:1.32;font-weight:700;letter-spacing:.2px;
  margin:18px 0 0;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);
  font-size:14px;color:var(--c-text-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);}
.article-meta .meta-actions{margin-left:auto;display:flex;gap:10px;}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 12px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:var(--c-surface);
  font-size:13px;color:var(--c-text-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.icon-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 280px;
  gap:56px;justify-content:center;
  padding:8px 0 72px;
}
.article-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:36px 40px 40px;
}
.article-body{font-size:16px;line-height:1.9;color:var(--c-text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;
  margin:2em 0 .6em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:18px;line-height:1.5;font-weight:600;margin:1.7em 0 .5em;}
.article-body h4{font-size:16px;font-weight:600;margin:1.4em 0 .4em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:.55em;color:var(--c-text-2);}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.article-body ol{counter-reset:artol;}
.article-body ol li{counter-increment:artol;}
.article-body ol li::before{
  content:counter(artol);
  position:absolute;left:0;top:.1em;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:700;color:var(--c-primary);
}
.article-body a{color:var(--c-primary-6);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body strong{font-weight:700;color:var(--c-text);}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;
  background:var(--c-surface-2);
  border-left:4px solid var(--c-accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:1.5em auto;box-shadow:var(--sh-1);}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-body code{
  font-family:var(--font-num);font-size:14px;
  background:var(--c-surface-2);color:var(--c-primary-6);
  padding:2px 6px;border-radius:var(--r-sm);
}
.article-body pre{
  background:var(--c-ink);color:#E9E6E1;
  padding:18px 20px;border-radius:var(--r-md);
  overflow-x:auto;margin:1.5em 0;line-height:1.7;
  font-family:var(--font-num);font-size:14px;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;margin:1.5em 0;font-size:14.5px;
  border:1px solid var(--c-line);border-radius:var(--r-md);
}
.article-body thead th{
  background:var(--c-ink);color:#fff;font-weight:600;
  text-align:left;padding:12px 14px;white-space:nowrap;
}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--c-line);color:var(--c-text-2);}
.article-body tbody tr:nth-child(even){background:var(--c-surface-2);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed var(--c-line);border-radius:var(--r-lg);
  background:var(--c-surface-2);
}
.empty-state svg{width:34px;height:34px;stroke:var(--c-text-3);fill:none;stroke-width:1.5;margin:0 auto 14px;}
.empty-state p{color:var(--c-text-2);margin-bottom:18px;}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:15px;font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto;}
.toc-list a{
  display:block;font-size:13.5px;color:var(--c-text-2);
  padding:7px 10px;border-radius:var(--r-sm);border-left:2px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--c-surface-2);color:var(--c-primary);}
.toc-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);}
.side-note{font-size:13.5px;color:var(--c-text-2);line-height:1.8;}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:14px;}
.side-actions .btn{width:100%;}

/* ---------- 标签 ---------- */
.tag-block{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-block .label{font-size:13px;color:var(--c-text-3);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:999px;background:var(--c-accent-soft);
  color:#046B5C;font-size:13px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--c-accent);color:#fff;}

/* ---------- 上下文导航 ---------- */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px;}
.pager-card{
  display:flex;flex-direction:column;gap:8px;
  padding:20px;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:var(--c-surface);box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D9D2C8;}
.pager-card .k{font-size:12.5px;color:var(--c-text-3);letter-spacing:.4px;}
.pager-card .t{font-size:15.5px;font-weight:600;line-height:1.5;}
.pager-card.is-right{text-align:right;align-items:flex-end;}

/* ---------- 推荐 ---------- */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:24px;font-weight:700;line-height:1.4;}
.section-head h2 small{display:block;font-size:14px;font-weight:400;color:var(--c-text-3);margin-top:8px;line-height:1.6;}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more:hover{color:var(--c-primary-6);text-decoration:underline;}
.related-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;}
.rel-lead{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rel-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.rel-lead .cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-lead .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-lead:hover .cover img{transform:scale(1.05);}
.rel-body{padding:22px 24px 26px;}
.rel-body .tagline{font-size:12.5px;font-weight:600;color:var(--c-primary);letter-spacing:.4px;}
.rel-body h3{font-size:19px;line-height:1.5;margin:10px 0 10px;}
.rel-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;}
.rel-side{display:flex;flex-direction:column;gap:24px;}
.rel-mini{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:16px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:14px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.rel-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.rel-mini .thumb{aspect-ratio:4/3;border-radius:var(--r-md);overflow:hidden;background:var(--c-surface-2);}
.rel-mini .thumb img{width:100%;height:100%;object-fit:cover;}
.rel-mini h3{font-size:15px;line-height:1.5;margin-bottom:6px;}
.rel-mini span{font-size:12.5px;color:var(--c-text-3);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--c-ink);
  border-radius:var(--r-xl);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(242,84,45,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;position:relative;z-index:1;}
.cta-band p{color:rgba(255,255,255,.7);font-size:14.5px;margin-top:10px;position:relative;z-index:1;}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);margin-top:32px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:36px;}
.site-footer .logo{color:#fff;}
.site-footer .logo-mark{color:var(--c-primary);}
.site-footer .logo-sub{color:rgba(255,255,255,.7);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin-top:16px;max-width:34ch;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-note{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 移动底部 Tab ---------- */
@media (max-width:900px){
  .main-nav{display:none;}
  .header-inner{height:64px;gap:16px;}
  .header-actions .link-quiet{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:56px;}
  .side{position:static;}
  .article-card{padding:26px 22px 30px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:640px){
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom));}
  .article-title{font-size:27px;}
  .article-meta{gap:8px 14px;}
  .article-meta .meta-actions{margin-left:0;width:100%;}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager-card.is-right{text-align:left;align-items:flex-start;}
  .section{padding:44px 0;}
  .section-head h2{font-size:20px;}
  .rel-mini{grid-template-columns:104px minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.97);
    border-top:1px solid var(--c-line);
    box-shadow:0 -6px 18px -14px rgba(22,24,29,.4);
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--c-text-3);position:relative;
  }
  .tabbar a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease;}
  .tabbar a.is-active{color:var(--c-primary);}
  .tabbar a.is-active svg{transform:translateY(-2px);}
  .tabbar a.is-active::before{content:"";position:absolute;top:0;width:26px;height:2px;border-radius:2px;background:var(--c-primary);}
}

/* roulang page: category1 */
:root{
  --c-primary:#F2542D;
  --c-primary-6:#D63F1A;
  --c-primary-soft:#FFEDE7;
  --c-accent:#00A88E;
  --c-accent-soft:#E4F6F2;
  --c-highlight:#FFC53D;
  --c-ink:#16181D;
  --c-ink-2:#23262D;
  --c-bg:#FAF8F5;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFEA;
  --c-line:#E4DFD8;
  --c-text:#1C1E22;
  --c-text-2:#5C6270;
  --c-text-3:#8A909C;
  --c-success:#17A673;
  --c-danger:#E0483C;
  --c-warn:#F0A020;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,24,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,24,29,.18);
  --sh-3:0 18px 44px -20px rgba(22,24,29,.28);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1200px;
}
*,*::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:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-primary-soft);color:var(--c-primary-6)}

.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  background:transparent;
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.97);box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-size:19px;font-weight:700;letter-spacing:-.02em;flex-shrink:0}
.logo-mark{color:var(--c-primary)}
.logo-sub{font-size:15px;font-weight:600;color:var(--c-text-2);letter-spacing:0}
.site-header:not(.is-scrolled) .logo-mark{color:#fff}
.site-header:not(.is-scrolled) .logo-sub{color:rgba(255,255,255,.72)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  border-radius:var(--r-sm);
  color:var(--c-text-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.site-header:not(.is-scrolled) .nav-link{color:rgba(255,255,255,.82)}
.site-header:not(.is-scrolled) .nav-link:hover{color:#fff;background:rgba(255,255,255,.12)}
.site-header:not(.is-scrolled) .nav-link.is-active{color:#fff}
.site-header:not(.is-scrolled) .nav-link.is-active::after{background:var(--c-highlight)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.link-quiet{font-size:14px;color:var(--c-text-2);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.link-quiet:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.site-header:not(.is-scrolled) .link-quiet{color:rgba(255,255,255,.8)}
.site-header:not(.is-scrolled) .link-quiet:hover{color:#fff;border-bottom-color:rgba(255,255,255,.7)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -10px rgba(242,84,45,.55)}
.btn-primary:hover{background:var(--c-primary-6)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.header-tab-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-sm);color:#fff}
.site-header.is-scrolled .header-tab-btn{color:var(--c-text)}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;
  padding:132px 0 66px;
  background:
    linear-gradient(180deg,rgba(22,24,29,.86) 0%,rgba(22,24,29,.72) 55%,rgba(22,24,29,.88) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-140px;bottom:-160px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,45,.32) 0%,rgba(242,84,45,0) 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.8);transition:color .18s ease}
.breadcrumb a:hover{color:var(--c-highlight)}
.breadcrumb .sep{color:rgba(255,255,255,.36)}
.breadcrumb .current{color:rgba(255,255,255,.94)}
.page-hero h1{
  font-size:44px;
  line-height:1.25;
  max-width:820px;
  color:#fff;
}
.page-hero .hero-lead{
  margin-top:18px;
  max-width:700px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.8);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 15px;
  font-size:13.5px;
  font-weight:500;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.9);
}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,168,142,.22)}
.pill .dot.orange{background:var(--c-highlight);box-shadow:0 0 0 4px rgba(255,197,61,.2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section-alt{background:var(--c-surface-2)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  padding:5px 12px;
  border-radius:var(--r-pill);
  margin-bottom:16px;
}
.section-head h2{font-size:28px;line-height:1.4}
.section-head .section-lead{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:640px}

/* ---------- 数据条 ---------- */
.fact-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:-100px;
  position:relative;
  z-index:5;
}
.fact-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:22px 22px 20px;
  box-shadow:var(--sh-2);
}
.fact-card .fact-label{font-size:13px;color:var(--c-text-3);letter-spacing:.04em}
.fact-card .fact-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:700;
  line-height:1.3;
  color:var(--c-ink);
  margin-top:6px;
}
.fact-card .fact-note{font-size:13.5px;color:var(--c-text-2);margin-top:4px}

/* ---------- 交替图文流 ---------- */
.flow-list{display:flex;flex-direction:column;gap:56px}
.flow-item{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:44px;
  align-items:center;
}
.flow-item:nth-child(even) .flow-media{order:2}
.flow-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface-2)}
.flow-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.flow-item:hover .flow-media img{transform:scale(1.04)}
.media-badge{
  position:absolute;
  left:16px;top:16px;
  padding:5px 12px;
  font-size:12.5px;
  font-weight:600;
  color:#fff;
  background:rgba(22,24,29,.7);
  border-radius:var(--r-pill);
  letter-spacing:.02em;
}
.flow-body{padding:4px 0}
.flow-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.02em;
  margin-bottom:10px;
}
.flow-body h3{font-size:21px;line-height:1.5;margin-bottom:12px}
.flow-body > p{color:var(--c-text-2);font-size:15.5px}
.tick-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.tick-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--c-text-2)}
.tick-list li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--c-accent-soft);
  border:2px solid var(--c-accent);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:20px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-primary);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,gap .18s ease;
}
.link-arrow:hover{border-bottom-color:var(--c-primary);gap:10px}

/* ---------- 标签与相关入口 ---------- */
.tag-wall{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  font-size:14px;
  color:var(--c-text-2);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  transition:all .18s ease;
}
.tag:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px)}
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.entry-card{
  display:block;
  padding:24px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.entry-card .entry-kicker{font-size:12.5px;font-weight:600;color:var(--c-accent);letter-spacing:.06em}
.entry-card h3{font-size:17px;margin:10px 0 8px;line-height:1.5}
.entry-card p{font-size:14.5px;color:var(--c-text-2)}

/* ---------- 订阅表单 ---------- */
.subscribe-panel{
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:44px;
  align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:44px;
  box-shadow:var(--sh-2);
}
.subscribe-panel h2{font-size:26px;line-height:1.4}
.subscribe-panel .sub-lead{margin-top:14px;color:var(--c-text-2);font-size:15.5px}
.sub-form{display:flex;flex-direction:column;gap:12px}
.field-row{display:flex;gap:12px;flex-wrap:wrap}
.input-text{
  flex:1 1 240px;
  min-height:48px;
  padding:0 16px;
  font-size:15px;
  color:var(--c-text);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input-text::placeholder{color:var(--c-text-3)}
.input-text:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,84,45,.18)}
.input-text.has-error{border-color:var(--c-danger);box-shadow:0 0 0 3px rgba(224,72,60,.14)}
.form-hint{font-size:13px;color:var(--c-text-3);line-height:1.7}
.form-hint.is-error{color:var(--c-danger)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7}
.check-row input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-primary);flex-shrink:0}
.sub-success{
  display:none;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:var(--c-accent-soft);
  color:#0B6B5A;
  font-size:14px;
  font-weight:500;
}
.sub-success.is-visible{display:flex}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:880px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  min-height:56px;
  padding:16px 0 16px 18px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-text);
  transition:color .18s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:2px;
  background:var(--c-primary);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex-shrink:0;
  width:22px;height:22px;
  color:var(--c-text-3);
  transition:transform .24s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 0 20px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--c-ink);
  border-radius:var(--r-xl);
  padding:46px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-120px;
  width:380px;height:380px;
  background:radial-gradient(circle,rgba(242,84,45,.22) 0%,rgba(242,84,45,0) 70%);
  pointer-events:none;
}
.cta-band h2{font-size:26px;line-height:1.4;color:#fff;position:relative;z-index:1}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.72);font-size:15px;max-width:520px;position:relative;z-index:1}
.cta-band .cta-actions{position:relative;z-index:1;flex-shrink:0;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:32px;background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:36px}
.site-footer .logo-mark{color:var(--c-primary)}
.site-footer .logo-sub{color:rgba(255,255,255,.6)}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14.5px;color:rgba(255,255,255,.7);transition:color .18s ease}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline}
.footer-note{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- 移动端底部 Tab ---------- */
.tabbar{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1120px}
}
@media (max-width:1023px){
  .page-hero{padding:120px 0 56px}
  .page-hero h1{font-size:34px}
  .fact-strip{grid-template-columns:repeat(2,1fr);margin-top:32px}
  .flow-item{grid-template-columns:1fr;gap:24px}
  .flow-item:nth-child(even) .flow-media{order:0}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .subscribe-panel{grid-template-columns:1fr;gap:28px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{gap:0}
  .nav-link{padding:0 10px;font-size:14.5px}
  .header-actions .btn{padding:0 16px;font-size:14px}
}
@media (max-width:767px){
  body{padding-bottom:72px}
  .container{padding:0 16px}
  .main-nav{display:none}
  .header-actions{display:none}
  .header-tab-btn{display:inline-flex}
  .header-inner{height:64px}
  .site-header.is-scrolled .header-inner{height:60px}
  .page-hero{padding:104px 0 44px}
  .page-hero h1{font-size:28px;line-height:1.35}
  .page-hero .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .section{padding:48px 0}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:22px}
  .fact-strip{grid-template-columns:1fr;gap:14px;margin-top:28px}
  .fact-card{padding:18px}
  .flow-list{gap:40px}
  .flow-body h3{font-size:18.5px}
  .flow-num{font-size:20px}
  .entry-grid{grid-template-columns:1fr}
  .subscribe-panel{padding:24px;border-radius:var(--r-lg)}
  .subscribe-panel h2{font-size:21px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .faq-q{font-size:15.5px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:var(--r-lg)}
  .cta-band h2{font-size:21px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .tabbar{
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:90;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    height:56px;
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.98);
    border-top:1px solid var(--c-line);
    box-shadow:0 -6px 20px -14px rgba(22,24,29,.28);
  }
  .tab-item{
    position:relative;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:2px;
    min-height:44px;
    font-size:11px;
    color:var(--c-text-3);
    transition:color .18s ease;
  }
  .tab-item svg{width:22px;height:22px;transition:transform .18s ease}
  .tab-item.is-active{color:var(--c-primary)}
  .tab-item.is-active svg{transform:translateY(-2px)}
  .tab-item.is-active::before{
    content:"";
    position:absolute;
    top:0;left:50%;
    transform:translateX(-50%);
    width:28px;height:2px;
    border-radius:2px;
    background:var(--c-primary);
  }
  .tab-item:active{color:var(--c-primary-6)}
}
@media (max-width:519px){
  .page-hero h1{font-size:25px}
  .hero-tags .pill{font-size:12.5px;padding:6px 12px}
  .cta-band{padding:28px 20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#F2542D;
  --c-primary-6:#D63F1A;
  --c-primary-soft:#FFEDE7;
  --c-accent:#00A88E;
  --c-accent-soft:#E4F6F2;
  --c-highlight:#FFC53D;
  --c-ink:#16181D;
  --c-ink-2:#23262D;
  --c-bg:#FAF8F5;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFEA;
  --c-line:#E4DFD8;
  --c-text:#1C1E22;
  --c-text-2:#5C6270;
  --c-text-3:#8A909C;
  --c-success:#17A673;
  --c-danger:#E0483C;
  --c-warn:#F0A020;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(22,24,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,24,29,.18);
  --sh-3:0 18px 44px -20px rgba(22,24,29,.28);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  --header-h:72px;
}
*,*::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:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:calc(64px + env(safe-area-inset-bottom));
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
@media (min-width:1280px){.container{max-width:1200px}}
.section{padding:80px 0}
.section-alt{background:var(--c-surface-2)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:26px;margin-bottom:12px}
.section-head p{color:var(--c-text-2);font-size:15.5px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px;letter-spacing:.02em}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:transparent;
  border-bottom:1px solid rgba(255,255,255,.14);
  transition:background .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.site-header.is-scrolled{
  background:rgba(250,248,245,.98);
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-2);
}
.header-inner{display:flex;align-items:center;gap:32px;height:var(--header-h);transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:baseline;gap:2px;font-weight:700;font-size:19px;letter-spacing:.01em;white-space:nowrap}
.logo-mark{color:var(--c-primary)}
.logo-sub{font-size:14px;font-weight:600;color:rgba(255,255,255,.72);transition:color .2s ease}
.site-header.is-scrolled .logo-sub{color:var(--c-text-3)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.8);border-radius:var(--r-sm);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:#fff}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-link{color:var(--c-text-2)}
.site-header.is-scrolled .nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.site-header.is-scrolled .nav-link.is-active{color:var(--c-primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.link-quiet{font-size:15px;color:rgba(255,255,255,.78);border-bottom:1px solid transparent;padding-bottom:2px}
.link-quiet:hover{color:#fff;border-bottom-color:currentColor}
.site-header.is-scrolled .link-quiet{color:var(--c-text-2)}
.site-header.is-scrolled .link-quiet:hover{color:var(--c-primary)}
.header-icon-btn{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid rgba(255,255,255,.28);color:#fff;
}
.site-header.is-scrolled .header-icon-btn{border-color:var(--c-line);color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .15s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  cursor:pointer;white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -10px rgba(242,84,45,.75)}
.btn-primary:hover{background:var(--c-primary-6);box-shadow:0 10px 24px -10px rgba(242,84,45,.85)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn[disabled],.btn.is-loading{opacity:.55;cursor:not-allowed;filter:saturate(.6)}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-bottom:24px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.38)}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff}
.breadcrumb [aria-current]{color:rgba(255,255,255,.6)}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:calc(var(--header-h) + 64px) 0 72px;
  background-image:
    linear-gradient(100deg,rgba(22,24,29,.92) 0%,rgba(22,24,29,.74) 52%,rgba(22,24,29,.88) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:#fff;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 16px;margin-bottom:20px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,168,142,.22)}
.page-hero h1{font-size:32px;line-height:1.32;max-width:760px;margin-bottom:18px}
.page-hero .hero-lead{max-width:660px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.8);margin-bottom:24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  font-size:13.5px;font-weight:500;color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;
  margin-top:44px;border-radius:var(--r-lg);overflow:hidden;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);
}
.hero-stat{background:rgba(22,24,29,.55);padding:18px 20px}
.hero-stat .num{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--c-highlight);line-height:1.2}
.hero-stat .label{font-size:13.5px;color:rgba(255,255,255,.72)}

/* ---------- 步骤流程 ---------- */
.step-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#f3c4b6}
.step-item:not(:last-child)::after{
  content:"";position:absolute;top:50px;right:-24px;width:24px;height:2px;
  background:linear-gradient(90deg,rgba(242,84,45,.15),rgba(242,84,45,.6));
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;margin-bottom:16px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:17px;font-weight:700;
}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}
.step-note{
  display:inline-block;margin-top:12px;font-size:13px;color:var(--c-accent);
  background:var(--c-accent-soft);border-radius:999px;padding:3px 12px;
}

/* ---------- 问答双列 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.qa-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.qa-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);margin-bottom:14px;
}
.tag.tag-accent{color:var(--c-accent);background:var(--c-accent-soft)}
.qa-card h3{font-size:16.5px;margin-bottom:8px}
.qa-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.82}

/* ---------- 环境检查 ---------- */
.env-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.env-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3)}
.env-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.env-figure figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  font-size:13px;color:#fff;background:rgba(22,24,29,.66);
  border-radius:var(--r-sm);padding:8px 14px;
}
.env-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.env-list li:first-child{padding-top:0}
.env-list .idx{
  flex:none;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:700;color:var(--c-primary);line-height:1.5;width:34px;
}
.env-list h3{font-size:16px;margin-bottom:4px}
.env-list p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}

/* ---------- 排查表 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-surface);box-shadow:var(--sh-1)}
table{width:100%;border-collapse:collapse;min-width:660px}
thead th{
  background:var(--c-ink);color:#fff;text-align:left;
  font-size:14px;font-weight:600;padding:14px 20px;white-space:nowrap;
}
tbody td{padding:16px 20px;font-size:14.5px;color:var(--c-text-2);border-top:1px solid var(--c-line);vertical-align:top}
tbody tr:nth-child(even){background:var(--c-surface-2)}
tbody td:first-child{color:var(--c-text);font-weight:600}
.solve{color:var(--c-accent);font-weight:600}

/* ---------- 订阅表单 ---------- */
.sub-wrap{max-width:760px;margin:0 auto}
.sub-form{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-2)}
.field-row{display:flex;gap:12px}
.input{
  flex:1;height:48px;padding:0 16px;font-size:15px;color:var(--c-text);
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-sm);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.input::placeholder{color:var(--c-text-3)}
.input:focus{outline:none;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(242,84,45,.18)}
.input.is-error{border-color:var(--c-danger);box-shadow:0 0 0 3px rgba(224,72,60,.15)}
.check-line{display:flex;align-items:flex-start;gap:10px;margin-top:14px;font-size:13.5px;color:var(--c-text-2);cursor:pointer}
.check-line input{width:18px;height:18px;margin-top:4px;accent-color:var(--c-primary);flex:none}
.form-msg{margin-top:12px;font-size:13.5px;min-height:20px}
.form-msg.is-error{color:var(--c-danger)}
.form-msg.is-ok{color:var(--c-success)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;min-height:58px;padding:16px 0 16px 18px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);transition:color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--c-primary);opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before,.faq-q:hover::before{opacity:1}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{flex:none;width:22px;height:22px;color:var(--c-text-3);transition:transform .24s ease,color .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 0 20px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:780px}

/* ---------- 底部 CTA ---------- */
.cta-section{padding:0 0 80px}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:#fff;
  border-radius:var(--r-xl);padding:48px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,45,.28),rgba(242,84,45,0) 68%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:24px;margin-bottom:10px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.72);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#fff;padding:64px 0 28px;margin-top:32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);max-width:320px}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-list li+li{margin-top:10px}
.footer-list a{font-size:14.5px;color:rgba(255,255,255,.7)}
.footer-list a:hover{color:var(--c-primary);text-decoration:underline}
.footer-note{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.site-footer .logo-sub{color:rgba(255,255,255,.68)}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:95;display:none;
  height:calc(64px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--c-surface);border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px -14px rgba(22,24,29,.3);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--c-text-3);position:relative;padding-top:4px;
  min-height:44px;transition:color .18s ease;
}
.tab-item svg{width:22px;height:22px;transition:transform .18s ease}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:34px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .18s ease;
}
.tab-item.is-active{color:var(--c-primary);font-weight:600}
.tab-item.is-active svg{transform:translateY(-2px)}
.tab-item.is-active::before{transform:translateX(-50%) scaleX(1)}
.tab-item:active{color:var(--c-primary-6)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav,.header-actions{display:none}
  .header-icon-btn{display:inline-flex}
  .header-inner{justify-content:space-between;gap:16px}
  .mobile-tabbar{display:flex}
  .section{padding:56px 0}
  .page-hero{padding:calc(var(--header-h) + 44px) 0 56px}
  .step-flow{grid-template-columns:1fr;gap:14px}
  .step-item:not(:last-child)::after{display:none}
  .step-item{border-left:3px solid var(--c-primary)}
  .qa-grid{grid-template-columns:1fr}
  .env-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 28px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-hero h1{font-size:28px}
  .page-hero .hero-lead{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr;margin-top:32px}
  .hero-stat{padding:14px 18px}
  .hero-stat .num{font-size:20px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:22px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
  .sub-form{padding:24px 20px}
  .cta-inner h2{font-size:21px}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .faq-q{font-size:15.5px}
}