/* roulang page: index */
/* ============ 1. 设计变量 ============ */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --c-light-1:#14171C;
  --c-light-2:#565E6B;
  --r-btn:4px;
  --r-card:3px;
  --r-chip:999px;
  --sh-card:0 16px 40px -12px rgba(0,0,0,.55);
  --sh-card-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --ff-num:'Barlow Condensed','Oswald','Arial Narrow',sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 2. 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
button{font-family:inherit}
input,button,textarea{font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.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}

/* 覆盖 Foundation 默认外观 */
.button,.button.primary,.button.secondary{background:var(--c-brand);border:0;border-radius:var(--r-btn);color:#0B0D11;font-weight:700;box-shadow:none}
.callout{background:var(--c-card);border:1px solid var(--c-line);color:var(--c-text-1);border-radius:var(--r-card)}
.pagination li a,.pagination li button{border-radius:var(--r-chip);color:var(--c-text-2);background:transparent;border:1px solid var(--c-line)}
.pagination li.current a{background:var(--c-brand);color:#0B0D11;border-color:var(--c-brand)}
.pagination li a:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.badge{background:var(--c-brand-soft);color:var(--c-brand);border-radius:var(--r-chip);font-size:12px;letter-spacing:.04em}
.top-bar{background:rgba(11,13,17,.92)}

/* ============ 3. 容器与板块 ============ */
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section--light{background:var(--c-light-bg);color:var(--c-light-1);padding:112px 0}
.section--light .section__sub,
.section--light .muted{color:var(--c-light-2)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section__title{font-size:34px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.section__sub{color:var(--c-text-2);font-size:15px;margin-top:10px;max-width:620px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--c-brand);border:1px solid rgba(255,90,31,.35);border-radius:var(--r-chip);padding:4px 12px;margin-bottom:18px;text-transform:uppercase}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-brand)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover{color:var(--c-accent);text-decoration:underline}
.text-link:hover::after{transform:translateX(4px)}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ 4. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:15px;font-weight:700;line-height:1;
  border-radius:var(--r-btn);border:1.5px solid transparent;cursor:pointer;
  transition:all .2s var(--ease);min-height:44px;
}
.btn--primary{background:var(--c-brand);color:#0B0D11;border-color:var(--c-brand)}
.btn--primary:hover{background:var(--c-brand-hover);border-color:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.btn--sm{padding:9px 18px;font-size:14px;min-height:38px}
.btn--light{background:#14171C;color:#F2F4F7;border-color:#14171C}
.btn--light:hover{background:#22262E;border-color:#22262E;color:#fff;transform:translateY(-2px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none}

/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,17,.92);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(8px);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -12px rgba(0,0,0,.75)}
.nav-bar{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text-1);flex:0 0 auto}
.brand:hover{color:var(--c-text-1)}
.brand__mark{width:20px;height:20px;background:var(--c-brand);clip-path:polygon(0 0,100% 0,100% 100%);display:inline-block}
.brand__text{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand__sub{font-size:12px;font-weight:500;color:var(--c-text-3);margin-left:6px;letter-spacing:.06em}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.nav-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-chip);font-size:14px;color:var(--c-text-2);
  background:transparent;position:relative;transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;font-weight:700}
.nav-chip.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-14px;height:2px;background:var(--c-brand)}
.nav-actions{flex:0 0 auto;display:flex;align-items:center;gap:12px}

/* ============ 6. Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--c-bg);padding:64px 0 0;border-bottom:1px solid var(--c-line)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;min-height:520px;padding-bottom:56px}
.hero h1{font-size:clamp(28px,3.6vw,50px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:0 0 18px}
.hero__sub{font-size:17px;color:var(--c-text-2);max-width:520px;margin-bottom:28px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;border-top:1px solid var(--c-line);padding-top:24px}
.stat__num{display:block;font-family:var(--ff-num);font-size:38px;font-weight:700;line-height:1;color:var(--c-brand);letter-spacing:-.01em}
.stat__label{display:block;font-size:13px;color:var(--c-text-3);margin-top:8px;line-height:1.5}
.hero__media{position:relative}
.img-cut{position:relative;overflow:hidden;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);background:var(--c-card)}
.img-cut img{width:100%;height:100%;object-fit:cover}
.hero__media .img-cut{aspect-ratio:4/3}
.hero__media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(11,13,17,.15),rgba(11,13,17,.72));
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
}
.hero__badge{
  position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(11,13,17,.82);
  border:1px solid var(--c-line-strong);border-radius:var(--r-chip);padding:8px 16px;font-size:13px;color:var(--c-text-1);
}
.hero__ticker{position:relative;border-top:1px solid var(--c-line);padding:18px 0;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.ticker__label{font-size:12px;letter-spacing:.1em;color:var(--c-text-3)}
.ticker__list{display:flex;flex-wrap:wrap;gap:8px}
.ticker__list li{font-size:13px;color:var(--c-text-2);border:1px solid var(--c-line);border-radius:var(--r-chip);padding:4px 14px}

/* ============ 7. 主张序号条 ============ */
.claims__list{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.claim{padding:36px 32px 36px 0;border-right:1px solid var(--c-line)}
.claim:last-child{border-right:0}
.claim__num{display:block;font-family:var(--ff-num);font-size:20px;font-weight:700;color:var(--c-brand);letter-spacing:.06em;margin-bottom:14px}
.claim__title{font-size:22px;font-weight:700;margin-bottom:10px}
.claim__desc{font-size:15px;color:var(--c-text-2)}
.claim + .claim{padding-left:32px}

/* ============ 8. 故事区 ============ */
.story{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.story__media{position:relative;clip-path:polygon(0 0,0 100%,100% 100%,100% 16px,calc(100% - 16px) 0);aspect-ratio:5/4;background:var(--c-card);overflow:hidden}
.story__media img{width:100%;height:100%;object-fit:cover}
.story__media::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(255,90,31,.18),rgba(11,13,17,.55))}
.story h2{font-size:34px;font-weight:700;line-height:1.25;margin-bottom:20px}
.story p{color:var(--c-text-2);margin-bottom:16px}
.story p:last-of-type{margin-bottom:28px}

/* ============ 9. 分类入口网格 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.topic-card{
  grid-column:span 2;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:0;overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.topic-card:nth-child(4),.topic-card:nth-child(5){grid-column:span 3}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-card-hover)}
.topic-card .img-cut{aspect-ratio:16/9}
.topic-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.topic-card__title{font-size:20px;font-weight:700}
.topic-card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7}
.topic-card__more{margin-top:auto;font-size:13px;color:var(--c-brand);font-weight:600}

/* ============ 10. 精选内容卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-card-hover)}
.card .img-cut{aspect-ratio:16/9}
.card--lg{grid-column:span 6}
.card--sm{grid-column:span 3}
.card--md{grid-column:span 4}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__title{font-size:22px;font-weight:700;line-height:1.35}
.card--sm .card__title{font-size:18px}
.card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--c-text-3)}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-chip);
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;letter-spacing:.04em;font-weight:600;
  white-space:nowrap;
}
.chip--warn{background:rgba(255,197,61,.14);color:var(--c-warn)}
.chip--plain{background:rgba(255,255,255,.06);color:var(--c-text-2)}
.chip-row{display:flex;gap:8px;flex-wrap:wrap}

/* ============ 11. 最新信息列表（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.news-card{border-bottom:1px solid var(--c-line);padding:24px 0}
.news-card__link{display:block;color:var(--c-text-1)}
.news-card__link:hover{color:var(--c-text-1)}
.news-card__title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px;transition:color .2s var(--ease)}
.news-card__link:hover .news-card__title{color:var(--c-brand)}
.news-card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3)}
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--c-line-strong);border-radius:var(--r-card);color:var(--c-text-2)}
.empty-state p{margin-bottom:18px}

/* ============ 12. 信任背书（浅底） ============ */
.logo-wall{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:48px}
.logo-wall span{
  font-size:14px;color:#8A9099;border:1px solid rgba(20,23,28,.12);border-radius:var(--r-chip);
  padding:8px 18px;background:#fff;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.logo-wall span:hover{color:var(--c-brand);border-color:rgba(255,90,31,.45)}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{
  background:#fff;border:1px solid rgba(20,23,28,.08);border-radius:var(--r-card);padding:28px 26px;
  position:relative;box-shadow:0 14px 32px -18px rgba(20,23,28,.35);
}
.quote::before{content:"“";position:absolute;top:8px;left:20px;font-size:52px;line-height:1;color:rgba(255,90,31,.28);font-family:Georgia,serif}
.quote p{font-size:18px;line-height:1.75;color:var(--c-light-1);margin:26px 0 16px}
.quote cite{font-style:normal;font-size:13px;color:var(--c-light-2)}

/* ============ 13. FAQ ============ */
.faq{border-top:1px solid rgba(20,23,28,.12)}
.faq__item{border-bottom:1px solid rgba(20,23,28,.12)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--c-light-1);
  transition:color .2s var(--ease);
}
.faq__q:hover{color:var(--c-brand)}
.faq__icon{position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform .25s var(--ease)}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px}
.faq__icon::before{left:0;top:8px;width:18px;height:2px}
.faq__icon::after{left:8px;top:0;width:2px;height:18px}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__a{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-light-2);max-width:820px}

/* ============ 14. CTA 订阅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-line);background:#101319;
  padding:56px 48px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2}
.cta-band h2{font-size:32px;font-weight:700;line-height:1.25;margin-bottom:14px}
.cta-band p{color:var(--c-text-2);font-size:15px;max-width:480px}
.subscribe-form{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}
.subscribe-form input[type=email]{
  flex:1 1 240px;height:48px;padding:0 16px;background:var(--c-surface);color:var(--c-text-1);
  border:1px solid var(--c-line-strong);border-radius:var(--r-btn);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe-form input[type=email]::placeholder{color:var(--c-text-3)}
.subscribe-form input[type=email]:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15)}
.subscribe-form input.is-error{border-color:var(--c-error)}
.form-note{flex:1 1 100%;font-size:13px;color:var(--c-text-3);line-height:1.6}
.form-note.is-error{color:var(--c-error)}
.form-note.is-ok{color:var(--c-accent)}

/* ============ 15. 页脚 ============ */
.site-footer{background:var(--c-footer);position:relative;padding:72px 0 28px;margin-top:0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--c-brand),rgba(255,90,31,0))}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--c-line)}
.footer__desc{font-size:14px;color:var(--c-text-3);line-height:1.8;margin-top:16px;max-width:340px}
.footer__title{font-size:14px;font-weight:700;color:var(--c-text-1);margin-bottom:18px;letter-spacing:.04em}
.footer__col li{margin-bottom:12px}
.footer__col a,.footer__col span{font-size:14px;color:var(--c-text-2)}
.footer__col a:hover{color:var(--c-brand);margin-left:-2px;padding-left:2px}
.social-row{display:flex;gap:10px;margin-top:18px}
.social-row span{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:var(--c-text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.social-row span:hover{color:var(--c-brand);border-color:var(--c-brand)}
.footer__bottom{padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer__bottom p{font-size:12px;color:var(--c-text-3);line-height:1.7}

/* ============ 16. 响应式 ============ */
@media (max-width:1024px){
  .grid-container{padding-left:28px;padding-right:28px}
  .section{padding:64px 0}
  .section--light{padding:80px 0}
  .hero__inner{grid-template-columns:1fr;gap:36px;min-height:auto;padding-bottom:44px}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .story{grid-template-columns:1fr;gap:36px}
  .story h2,.section__title{font-size:30px}
  .claims__list{grid-template-columns:1fr}
  .claim{border-right:0;border-bottom:1px solid var(--c-line);padding:28px 0}
  .claim + .claim{padding-left:0}
  .claim:last-child{border-bottom:0}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .topic-card,.topic-card:nth-child(4),.topic-card:nth-child(5){grid-column:span 1}
  .feature-grid{grid-template-columns:repeat(6,1fr)}
  .card--lg,.card--sm,.card--md{grid-column:span 3}
  .card--lg{grid-column:span 6}
  .quote-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:28px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:48px 0}
  .section--light{padding:64px 0}
  .nav-bar{height:64px;gap:12px;flex-wrap:wrap;padding:8px 0}
  .nav-chips{order:3;flex:1 1 100%;gap:4px;padding-bottom:2px}
  .nav-chip.is-active::after{display:none}
  .brand__text{font-size:17px}
  .brand__sub{display:none}
  .hero{padding-top:40px}
  .hero h1{font-size:29px}
  .hero__sub{font-size:16px}
  .hero__cta .btn{width:100%}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .stat__num{font-size:30px}
  .section__head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section__title,.story h2,.cta-band h2{font-size:24px}
  .topic-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .card--lg,.card--sm,.card--md{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .subscribe-form .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .card:hover,.topic-card:hover,.btn--primary:hover{transform:none}
}

/* roulang page: article */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --c-light-text:#14171C;
  --c-light-text-2:#565E6B;
  --r-btn:4px;
  --r-card:6px;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --sh-card:0 16px 40px -12px rgba(0,0,0,.55);
  --sh-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Roboto Condensed","Arial Narrow",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-brand);text-decoration:none;}
a:hover{color:var(--c-accent);text-decoration:underline;}
h1,h2,h3,h4,h5{margin:0;color:var(--c-text-1);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 var(--sp-4);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
::selection{background:var(--c-brand);color:#0B0D11;}

/* ---------- 布局容器 ---------- */
.grid-container{max-width:1200px!important;padding-left:32px;padding-right:32px;margin:0 auto;}
.grid-container.full{max-width:1280px!important;}
.section{padding:96px 0;position:relative;}
.section--surface{background:var(--c-surface);}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:34px;}
.section-head .section-sub{color:var(--c-text-2);font-size:15px;margin-top:8px;max-width:640px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--c-brand);}
.text-link i{transition:transform .2s var(--ease);}
.text-link:hover{color:var(--c-accent);text-decoration:none;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,17,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -14px rgba(0,0,0,.85);}
.nav-bar{display:flex;align-items:center;gap:20px;min-height:68px;padding:10px 0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text-1);flex:0 0 auto;}
.brand:hover{text-decoration:none;color:var(--c-text-1);}
.brand__mark{
  width:26px;height:26px;flex:0 0 26px;
  background:linear-gradient(135deg,var(--c-brand) 0%,#FF8A4C 100%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.1;display:inline-flex;align-items:baseline;gap:4px;}
.brand__sub{font-size:11px;font-weight:600;color:var(--c-text-3);letter-spacing:.08em;text-transform:uppercase;}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
.nav-chips::-webkit-scrollbar{display:none;}
.nav-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--c-text-2);white-space:nowrap;
  border:1px solid transparent;transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);text-decoration:none;}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;box-shadow:inset 0 -2px 0 rgba(0,0,0,.18);}
.nav-chip.is-active:hover{background:var(--c-brand-hover);color:#0B0D11;text-decoration:none;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--c-brand);color:#0B0D11;box-shadow:0 10px 26px -12px rgba(255,90,31,.6);}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--quiet{background:rgba(255,255,255,.04);border-color:var(--c-line-strong);color:var(--c-text-1);}
.btn--quiet:hover{background:rgba(255,255,255,.08);color:var(--c-text-1);}
.btn--sm{padding:10px 18px;font-size:13.5px;}
.btn:disabled,.btn.is-disabled{opacity:.4;pointer-events:none;}
.button{background:var(--c-brand);color:#0B0D11;border-radius:var(--r-btn);font-weight:700;}
.button:hover{background:var(--c-brand-hover);color:#0B0D11;}

/* ---------- chip / 徽章 / 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.chip--brand{background:var(--c-brand-soft);border-color:rgba(255,90,31,.35);color:var(--c-brand);}
.chip--accent{background:rgba(22,224,198,.1);border-color:rgba(22,224,198,.3);color:var(--c-accent);}
.chip--warn{background:rgba(255,197,61,.12);border-color:rgba(255,197,61,.32);color:var(--c-warn);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  background:rgba(255,90,31,.14);color:var(--c-brand);border:1px solid rgba(255,90,31,.3);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-list a,.tag-list span{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:13px;font-weight:600;transition:all .18s var(--ease);
}
.tag-list a:hover{background:var(--c-brand-soft);border-color:rgba(255,90,31,.4);color:var(--c-brand);text-decoration:none;}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--c-brand),var(--c-accent));z-index:90;transition:width .1s linear;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--c-line);background:var(--c-bg);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding:18px 0;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:none;}
.breadcrumb .sep{color:var(--c-text-3);opacity:.6;}
.breadcrumb .current{color:var(--c-text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{padding:56px 0 40px;position:relative;background-image:radial-gradient(circle at 18% 12%,rgba(255,90,31,.14),transparent 46%),linear-gradient(180deg,#0B0D11 0%,#0E1116 100%);border-bottom:1px solid var(--c-line);}
.article-hero__grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.article-hero__text{grid-column:span 7;}
.article-hero__visual{grid-column:span 5;}
.article-hero h1{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.02em;margin:18px 0 16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;color:var(--c-text-2);font-size:14px;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--c-brand);font-size:13px;}
.share-row{display:flex;gap:10px;margin-top:22px;}
.share-row a{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line-strong);color:var(--c-text-2);transition:all .18s var(--ease);
}
.share-row a:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-soft);text-decoration:none;transform:translateY(-2px);}
.hero-figure{
  position:relative;aspect-ratio:4/3;overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  border:1px solid var(--c-line);box-shadow:var(--sh-card);background:var(--c-card);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.92;}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,17,.15),rgba(11,13,17,.7));}
.hero-figure .hero-figure__cap{
  position:absolute;left:18px;bottom:16px;z-index:2;font-size:13px;color:var(--c-text-2);letter-spacing:.02em;
}

/* ---------- 文章主体布局 ---------- */
.article-wrap{padding:64px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
.article-cover{
  aspect-ratio:21/9;overflow:hidden;margin-bottom:36px;
  border:1px solid var(--c-line);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  background:var(--c-card);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.article-body{font-size:17px;line-height:1.9;color:#DFE4EC;max-width:760px;}
.article-body h2{
  font-size:28px;line-height:1.35;margin:44px 0 16px;padding-left:16px;border-left:4px solid var(--c-brand);
}
.article-body h3{font-size:22px;margin:32px 0 12px;font-weight:700;}
.article-body h4{font-size:18px;margin:24px 0 10px;color:var(--c-text-1);}
.article-body p{margin:0 0 18px;}
.article-body a{color:var(--c-brand);border-bottom:1px solid rgba(255,90,31,.35);}
.article-body a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);text-decoration:none;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body img{
  margin:28px auto;width:100%;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  border:1px solid var(--c-line);
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;background:rgba(255,255,255,.03);
  border-left:3px solid var(--c-brand);color:var(--c-text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:28px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left;}
.article-body th{background:rgba(255,255,255,.04);color:var(--c-text-1);}
.article-body .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:24px 0;}
.article-body code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:4px;font-size:15px;}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:40px 0;}

/* ---------- 侧栏 ---------- */
.side-stack{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);padding:22px;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  box-shadow:var(--sh-card);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--c-brand);font-size:14px;}
.toc-list{border-left:1px solid var(--c-line);padding-left:14px;display:flex;flex-direction:column;gap:10px;}
.toc-list a{font-size:14px;color:var(--c-text-2);line-height:1.5;display:block;}
.toc-list a:hover{color:var(--c-brand);text-decoration:none;}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-list a{display:flex;gap:12px;align-items:flex-start;color:var(--c-text-1);font-size:14.5px;line-height:1.55;}
.side-list a:hover{color:var(--c-brand);text-decoration:none;}
.side-list .num{font-family:var(--font-num);font-weight:700;font-size:20px;color:var(--c-brand);line-height:1;min-width:24px;}
.side-cat{display:flex;flex-direction:column;gap:2px;}
.side-cat a{
  display:flex;align-items:center;justify-content:space-between;padding:11px 12px;border-radius:4px;
  font-size:14px;color:var(--c-text-2);border:1px solid transparent;transition:all .18s var(--ease);
}
.side-cat a:hover{background:var(--c-brand-soft);color:var(--c-brand);border-color:rgba(255,90,31,.25);text-decoration:none;}
.side-cat i{font-size:12px;opacity:.7;}
.side-sub p{font-size:14px;color:var(--c-text-2);line-height:1.7;}

/* ---------- 表单 ---------- */
.field{margin-bottom:14px;}
.field input[type="email"],.field input[type="text"]{
  width:100%;height:48px;padding:0 14px;border-radius:4px;
  background:var(--c-surface);border:1px solid var(--c-line-strong);color:var(--c-text-1);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15);}
.field-note{font-size:13px;color:var(--c-text-3);line-height:1.6;}
.field-note a{color:var(--c-text-2);text-decoration:underline;}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:12px 0 16px;}
.check-row input{appearance:none;width:18px;height:18px;flex:0 0 18px;margin-top:2px;border:1px solid var(--c-line-strong);border-radius:3px;background:var(--c-surface);cursor:pointer;position:relative;transition:all .18s var(--ease);}
.check-row input:checked{background:var(--c-brand);border-color:var(--c-brand);}
.check-row input:checked::after{content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;border:2px solid #0B0D11;border-top:0;border-left:0;transform:rotate(42deg);}
.check-row label{font-size:13px;color:var(--c-text-3);line-height:1.6;}
.form-success{color:var(--c-accent);font-size:13px;margin-top:8px;}

/* ---------- 文末 ---------- */
.article-foot{max-width:760px;margin-top:48px;padding-top:32px;border-top:1px solid var(--c-line);}
.article-foot h3{font-size:16px;margin-bottom:14px;color:var(--c-text-2);font-weight:600;}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:36px 0 0;max-width:760px;}
.pager a{
  display:block;padding:18px 20px;background:var(--c-card);border:1px solid var(--c-line);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  transition:all .2s var(--ease);
}
.pager a:hover{border-color:rgba(255,90,31,.4);transform:translateY(-4px);box-shadow:var(--sh-hover);text-decoration:none;}
.pager .pager__label{font-size:12px;letter-spacing:.08em;color:var(--c-text-3);display:block;margin-bottom:8px;}
.pager .pager__title{font-size:15.5px;font-weight:700;color:var(--c-text-1);line-height:1.5;}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;gap:24px;}
.card-grid--3{grid-template-columns:repeat(3,1fr);}
.card{
  background:var(--c-card);border:1px solid var(--c-line);overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  box-shadow:var(--sh-card);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-hover);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0E1116;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card__media img{transform:scale(1.04);}
.card__media .chip{position:absolute;left:14px;top:14px;background:rgba(11,13,17,.78);color:#F2F4F7;border-color:rgba(255,255,255,.16);}
.card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card__body h3{font-size:19px;line-height:1.45;}
.card__body h3 a{color:var(--c-text-1);}
.card__body h3 a:hover{color:var(--c-brand);text-decoration:none;}
.card__body p{font-size:14.5px;color:var(--c-text-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);}

/* ---------- FAQ ---------- */
.faq-block{background:var(--c-light-bg);color:var(--c-light-text);}
.faq-block h2{color:var(--c-light-text);}
.faq-block .section-sub{color:var(--c-light-text-2);}
.faq-list{max-width:860px;margin:0 auto;border-top:1px solid rgba(20,23,28,.1);}
.faq-item{border-bottom:1px solid rgba(20,23,28,.1);}
.faq-q{
  width:100%;background:none;border:0;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--c-light-text);text-align:left;
}
.faq-q .plus{flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .25s var(--ease);}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-a{display:none;padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-light-text-2);max-width:720px;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 浅底信任区 ---------- */
.trust-block{background:var(--c-light-bg);color:var(--c-light-text);padding:96px 0;}
.trust-block h2{color:var(--c-light-text);}
.trust-block p{color:var(--c-light-text-2);}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;}
.trust-item{background:#fff;border:1px solid rgba(20,23,28,.08);padding:24px;border-radius:6px;}
.trust-item strong{display:block;font-family:var(--font-num);font-size:38px;line-height:1;color:var(--c-brand);margin-bottom:10px;}
.trust-item span{font-size:14px;color:var(--c-light-text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;padding:88px 0;overflow:hidden;
  background:linear-gradient(180deg,#0E1116 0%,#12151B 100%);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.035;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:48px;align-items:center;}
.cta-inner h2{font-size:34px;margin-bottom:14px;}
.cta-inner p{color:var(--c-text-2);font-size:16px;max-width:520px;}
.cta-panel{background:var(--c-card);border:1px solid var(--c-line);padding:28px;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);box-shadow:var(--sh-card);}
.cta-panel h3{font-size:18px;margin-bottom:8px;}
.cta-panel .cta-panel__desc{font-size:14px;color:var(--c-text-2);margin-bottom:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);padding:72px 0 28px;position:relative;}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--c-brand) 0%,rgba(255,90,31,0) 100%);}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
.footer__desc{font-size:14px;color:var(--c-text-2);line-height:1.8;margin:16px 0 18px;max-width:340px;}
.social-row{display:flex;gap:10px;}
.social-row span{
  width:32px;height:32px;border-radius:999px;border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:var(--c-text-2);
  transition:all .18s var(--ease);
}
.social-row span:hover{border-color:var(--c-brand);color:var(--c-brand);}
.footer__title{font-size:15px;margin-bottom:16px;color:var(--c-text-1);}
.footer__col ul{display:flex;flex-direction:column;gap:11px;}
.footer__col li a,.footer__col li span{font-size:14px;color:var(--c-text-2);}
.footer__col li a{transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block;}
.footer__col li a:hover{color:var(--c-brand);transform:translateX(2px);text-decoration:none;}
.footer__bottom{margin-top:48px;padding-top:20px;border-top:1px solid var(--c-line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;}
.footer__bottom p{font-size:12px;color:var(--c-text-3);margin:0;}

/* ---------- 空态 ---------- */
.empty-state{max-width:760px;padding:56px 0;text-align:center;}
.empty-state p{font-size:16px;color:var(--c-text-2);margin-bottom:20px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .section{padding:64px 0;}
  .article-hero__text,.article-hero__visual{grid-column:span 12;}
  .article-hero__visual{order:-1;}
  .hero-figure{aspect-ratio:16/9;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .side-stack{position:static;}
  .card-grid--3{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:768px){
  .nav-bar{flex-wrap:wrap;gap:12px;}
  .nav-chips{order:3;width:100%;padding-bottom:6px;}
  .nav-actions{margin-left:auto;}
  .brand__sub{display:none;}
  .article-hero h1{font-size:29px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;}
  .article-cover{aspect-ratio:16/9;}
  .pager{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:26px;}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .article-wrap{padding:40px 0 56px;}
  .article-hero{padding:36px 0 28px;}
  .article-body h2{font-size:21px;padding-left:12px;}
  .article-body h3{font-size:18px;}
  .card-grid--3{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .nav-actions .btn{width:auto;}
  .cta-band{padding:56px 0;}
  .cta-inner h2{font-size:25px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important;}
}

/* roulang page: category1 */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-light-bg:#F5F6F8;
  --c-light-text:#14171C;
  --c-light-text-2:#565E6B;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --r-btn:4px;
  --shadow-card:0 16px 40px -12px rgba(0,0,0,.55);
  --shadow-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --cut:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-accent);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,.nav-chip:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
p{margin:0 0 var(--sp-4)}
h1,h2,h3,h4{margin:0 0 var(--sp-3);color:var(--c-text-1);font-weight:700;letter-spacing:-.01em}
h1{font-size:46px;line-height:1.15;letter-spacing:-.02em;font-weight:800}
h2{font-size:34px;line-height:1.25}
h3{font-size:23px;line-height:1.35}
h4{font-size:18px;font-weight:600;line-height:1.4}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
img{filter:none}
.grid-container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (min-width:1281px){.grid-container{max-width:1280px}}
@media (max-width:1024px){.grid-container{padding-left:28px;padding-right:28px}}
@media (max-width:640px){.grid-container{padding-left:20px;padding-right:20px}}
.num{font-family:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,17,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 32px -18px rgba(0,0,0,.95)}
.nav-bar{display:flex;align-items:center;gap:var(--sp-5);height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text-1);text-decoration:none;flex:0 0 auto}
.brand:hover{color:var(--c-text-1);text-decoration:none}
.brand__mark{
  width:26px;height:26px;flex:0 0 auto;background:var(--c-brand);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
  box-shadow:0 0 0 1px rgba(255,90,31,.35);
}
.brand__text{font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand__sub{display:inline-block;margin-left:6px;font-size:12px;font-weight:600;color:var(--c-text-3);letter-spacing:.08em;vertical-align:2px}
.nav-chips{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--c-text-2);white-space:nowrap;
  position:relative;transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);text-decoration:none}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;font-weight:700}
.nav-chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:14px;height:2px;border-radius:2px;background:rgba(11,13,17,.5);
}
.nav-actions{flex:0 0 auto;display:flex;align-items:center;gap:var(--sp-3)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;padding:14px 28px;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
  text-decoration:none;min-height:44px;
}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--c-brand);color:#0B0D11;box-shadow:0 10px 26px -14px rgba(255,90,31,.9)}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{background:transparent;color:var(--c-brand);border:1.5px solid var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--sm{padding:10px 18px;font-size:14px;min-height:38px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-brand)}
.link-more i{transition:transform .2s var(--ease)}
.link-more:hover{color:var(--c-accent);text-decoration:none}
.link-more:hover i{transform:translateX(4px)}

/* ---------- Page head ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:#0B0D11 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.page-head::before{
  content:"";position:absolute;inset:0;z-index:1;opacity:.035;pointer-events:none;
  background-image:linear-gradient(to right,#fff 1px,transparent 1px),linear-gradient(to bottom,#fff 1px,transparent 1px);
  background-size:48px 48px;
}
.page-head::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(11,13,17,.95) 0%,rgba(11,13,17,.82) 48%,rgba(11,13,17,.66) 100%);
}
.page-head .grid-container{position:relative;z-index:2;padding-top:52px;padding-bottom:56px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:var(--sp-5)}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-brand);text-decoration:none}
.crumb span.sep{color:var(--c-text-3)}
.crumb .current{color:var(--c-text-1);max-width:60ch;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(255,90,31,.28);margin-bottom:var(--sp-4);
}
.page-head h1{max-width:20ch;margin-bottom:var(--sp-4)}
.page-head .lead{max-width:56ch;font-size:17px;color:var(--c-text-2);margin-bottom:var(--sp-6)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line-strong);background:rgba(18,21,27,.7);
  font-size:13px;color:var(--c-text-2);transition:all .2s var(--ease);white-space:nowrap;
}
.chip:hover{border-color:rgba(255,90,31,.45);color:var(--c-brand);background:var(--c-brand-soft);text-decoration:none}
.chip.is-on{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--light{background:var(--c-light-bg);color:var(--c-light-text);padding:104px 0}
.section--light h2,.section--light h3,.section--light h4{color:var(--c-light-text)}
.section--light p{color:var(--c-light-text-2)}
.section--tight{padding-top:64px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-6)}
.section-head p{margin:0;color:var(--c-text-2);max-width:62ch;font-size:15px}
.section-head h2{font-size:32px;margin-bottom:6px}

/* ---------- Featured ---------- */
.featured-grid{display:grid;grid-template-columns:1.62fr 1fr;gap:24px}
.featured-col{display:grid;gap:24px;align-content:start}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:6px;
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--shadow-hover)}
.card__media{position:relative;overflow:hidden;background:#0E1116}
.card__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform .3s var(--ease)}
.card:hover .card__media img{transform:scale(1.03)}
.card__media--wide img{aspect-ratio:21/9}
.card__tag{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(11,13,17,.78);color:#F2F4F7;font-size:12px;letter-spacing:.04em;font-weight:600;
  border:1px solid rgba(255,255,255,.14);
}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__body h3{font-size:22px;margin:0;line-height:1.35}
.card__body p{margin:0;font-size:14.5px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3);margin-top:auto}
.card__meta i{color:var(--c-brand);margin-right:5px}
.card--sub{flex-direction:row}
.card--sub .card__media{flex:0 0 42%}
.card--sub .card__media img{aspect-ratio:4/3;height:100%}
.card--sub .card__body{padding:18px 18px 18px 16px}
.card--sub .card__body h3{font-size:17px}
.card--sub .card__body p{-webkit-line-clamp:2;font-size:14px}
.tagline{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:12px;letter-spacing:.02em;
}
.tag--accent{background:rgba(22,224,198,.1);border-color:rgba(22,224,198,.3);color:var(--c-accent)}
.tag--warn{background:rgba(255,197,61,.1);border-color:rgba(255,197,61,.3);color:var(--c-warn)}

/* ---------- Stats strip ---------- */
.stats{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:var(--c-surface)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:40px 0}
.stat__num{font-size:44px;line-height:1;color:var(--c-brand);margin-bottom:8px;display:block}
.stat__label{font-size:13px;color:var(--c-text-3);letter-spacing:.04em}
.stat{padding-left:20px;border-left:1px solid var(--c-line-strong)}
.stat:first-child{border-left:0;padding-left:0}

/* ---------- Timeline ---------- */
.tl-wrap{max-width:900px}
.tl{position:relative;padding-left:34px}
.tl::before{content:"";position:absolute;left:7px;top:8px;bottom:26px;width:1px;background:var(--c-line-strong)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;width:15px;height:15px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-brand);
  box-shadow:0 0 0 4px rgba(255,90,31,.1);
}
.tl-date{font-size:15px;color:var(--c-brand);letter-spacing:.06em;margin-bottom:6px;display:block}
.tl-item h3{font-size:21px;margin:0 0 8px;line-height:1.4}
.tl-item h3 a{color:var(--c-text-1)}
.tl-item h3 a:hover{color:var(--c-brand);text-decoration:none}
.tl-item p{margin:0 0 12px;font-size:14.5px;color:var(--c-text-2);max-width:64ch}
.tl-item + .tl-item{border-top:1px solid var(--c-line);padding-top:34px}

/* ---------- Pagination ---------- */
.pagination{
  display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:40px 0 0;
}
.pagination li{margin:0}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 16px;
  border:1px solid var(--c-line-strong);border-radius:999px;background:transparent;
  color:var(--c-text-2);font-size:14px;transition:all .2s var(--ease);
}
.pagination a:hover{background:var(--c-brand-soft);border-color:rgba(255,90,31,.45);color:var(--c-brand);text-decoration:none}
.pagination .current a,.pagination .current span{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}
.pagination .disabled span{opacity:.4}

/* ---------- FAQ ---------- */
.faq-light{max-width:880px}
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{border:0;border-bottom:1px solid rgba(20,23,28,.14)}
.accordion .accordion-title{
  position:relative;display:block;border:0;background:transparent;
  padding:22px 44px 22px 0;font-size:16px;font-weight:600;color:var(--c-light-text);line-height:1.5;
  transition:color .2s var(--ease);
}
.accordion .accordion-title:hover{color:var(--c-brand-hover);text-decoration:none}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--c-brand);font-size:22px;font-weight:700;display:block;margin:0;
  transition:transform .25s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion .accordion-content{
  border:0;background:transparent;padding:0 44px 22px 0;color:var(--c-light-text-2);font-size:15px;line-height:1.85;
}
.accordion .accordion-content p{margin:0;color:var(--c-light-text-2);font-size:15px;line-height:1.85}

/* ---------- CTA / Form ---------- */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--c-line);border-radius:6px;
  background:var(--c-surface);padding:48px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.035;pointer-events:none;
  background-image:linear-gradient(to right,#fff 1px,transparent 1px),linear-gradient(to bottom,#fff 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:30px}
.cta-band p{color:var(--c-text-2);margin-bottom:0;font-size:15px}
.field-row{display:flex;gap:12px;flex-wrap:wrap}
.field{flex:1 1 220px;min-width:0}
.input{
  width:100%;height:48px;padding:0 16px;border-radius:4px;
  background:#12151B;border:1px solid var(--c-line-strong);color:var(--c-text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder{color:var(--c-text-3)}
.input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15)}
.form-note{display:flex;align-items:flex-start;gap:8px;margin-top:14px;font-size:13px;color:var(--c-text-3);line-height:1.7}
.form-note input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-brand);flex:0 0 auto}
.form-msg{margin-top:10px;font-size:13px;color:var(--c-accent);display:none}
.form-msg.is-error{color:var(--c-error)}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;background:var(--c-footer);padding:72px 0 32px;margin-top:0;
  border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-brand) 0%,rgba(255,90,31,0) 78%);
}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer__desc{margin:16px 0 0;font-size:14px;color:var(--c-text-3);max-width:38ch;line-height:1.8}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row span{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--c-text-2);transition:all .2s var(--ease);
}
.social-row span:hover{border-color:var(--c-brand);color:var(--c-brand)}
.footer__title{font-size:15px;font-weight:700;color:var(--c-text-1);margin-bottom:16px}
.footer__col ul li{margin-bottom:10px}
.footer__col ul li a,.footer__col ul li span{font-size:14px;color:var(--c-text-2);transition:all .2s var(--ease);display:inline-block}
.footer__col ul li a:hover{color:var(--c-brand);transform:translateX(2px);text-decoration:none}
.footer__bottom{
  border-top:1px solid var(--c-line);padding-top:24px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}
.footer__bottom p{margin:0;font-size:12px;color:var(--c-text-3)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  h1{font-size:36px}
  h2{font-size:28px}
  .section{padding:64px 0}
  .section--light{padding:72px 0}
  .nav-bar{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .nav-chips{order:3;width:100%;flex:1 0 100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
    padding-bottom:6px;mask-image:linear-gradient(90deg,#000 88%,transparent 100%)}
  .featured-grid{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  h1{font-size:29px}
  h2{font-size:24px}
  h3{font-size:20px}
  .section{padding:48px 0}
  .section--light{padding:56px 0}
  .page-head .grid-container{padding-top:36px;padding-bottom:40px}
  .page-head .lead{font-size:15.5px}
  .card--sub{flex-direction:column}
  .card--sub .card__media{flex:none;width:100%}
  .card--sub .card__media img{aspect-ratio:16/9}
  .stats__grid{grid-template-columns:1fr;gap:22px}
  .stat{border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:18px}
  .stat:first-child{border-top:0;padding-top:0}
  .footer__grid{grid-template-columns:1fr}
  .cta-band{padding:26px 22px}
  .tl{padding-left:26px}
  .tl-item::before{left:-26px;width:13px;height:13px}
  .tl::before{left:6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --c-light-1:#14171C;
  --c-light-2:#565E6B;
  --r-btn:4px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --sh-card:0 16px 40px -12px rgba(0,0,0,.55);
  --sh-card-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --font-num:"Barlow Condensed","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);text-decoration:underline;}
p{margin:0 0 var(--sp-4);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
::selection{background:rgba(255,90,31,.35);color:#fff;}

/* ============ 容器与栅格 ============ */
.grid-container{
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--sp-6);
  padding-right:var(--sp-6);
}
@media (min-width:1440px){ .grid-container{max-width:1280px;} }
@media (max-width:1024px){ .grid-container{padding-left:28px;padding-right:28px;} }
@media (max-width:640px){ .grid-container{padding-left:20px;padding-right:20px;} }

.section{padding-top:var(--sp-9);padding-bottom:var(--sp-9);}
.section--tight{padding-top:var(--sp-8);padding-bottom:var(--sp-8);}
.section--surface{background:var(--c-surface);}
@media (max-width:1024px){ .section{padding-top:64px;padding-bottom:64px;} }
@media (max-width:640px){ .section{padding-top:48px;padding-bottom:48px;} .section--tight{padding-top:40px;padding-bottom:40px;} }

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-5);margin-bottom:var(--sp-6);}
.section-head h2{font-size:34px;letter-spacing:-.01em;}
.section-head p{margin:var(--sp-3) 0 0;color:var(--c-text-2);font-size:15px;max-width:640px;}
@media (max-width:640px){ .section-head{flex-direction:column;align-items:flex-start;} .section-head h2{font-size:24px;} }

.text-link{font-size:15px;font-weight:700;color:var(--c-brand);white-space:nowrap;}
.text-link i{margin-left:6px;transition:transform .2s var(--ease);}
.text-link:hover i{transform:translateX(4px);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,13,17,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(0,0,0,.9);}
.nav-bar{
  display:flex;align-items:center;gap:var(--sp-5);
  flex-wrap:wrap;
  min-height:70px;
  padding:10px 0;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text-1);text-decoration:none;}
.brand:hover{color:var(--c-text-1);text-decoration:none;}
.brand__mark{
  width:30px;height:30px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-brand),#ff8a4c);
  clip-path:polygon(0 0,72% 0,100% 28%,100% 100%,28% 100%,0 72%);
}
.brand__text{font-size:19px;font-weight:800;letter-spacing:-.01em;line-height:1.1;}
.brand__sub{display:block;font-size:11px;font-weight:500;letter-spacing:.22em;color:var(--c-text-3);}
.nav-chips{
  display:flex;align-items:center;gap:var(--sp-2);
  flex:1 1 auto;min-width:0;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  padding:var(--sp-1) 0;
}
.nav-chips::-webkit-scrollbar{display:none;}
.nav-chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  border-radius:999px;
  font-size:14px;font-weight:500;
  color:var(--c-text-2);
  background:transparent;
  border:1px solid transparent;
  text-decoration:none;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  position:relative;
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);text-decoration:none;}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;font-weight:700;}
.nav-chip.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:-9px;height:2px;background:var(--c-brand);border-radius:2px;
}
.nav-actions{margin-left:auto;flex:0 0 auto;display:flex;align-items:center;gap:var(--sp-3);}
@media (max-width:1024px){
  .nav-chips{order:3;flex-basis:100%;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:640px){
  .nav-bar{gap:var(--sp-3);}
  .brand__text{font-size:17px;}
}

/* ============ 按钮 ============ */
.btn,.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:hover,.button:hover{text-decoration:none;}
.btn--primary{background:var(--c-brand);color:#0B0D11;box-shadow:0 10px 24px -12px rgba(255,90,31,.7);}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{min-height:38px;padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.button{background:transparent;color:var(--c-text-1);}
.button.primary{background:var(--c-brand);color:#0B0D11;}

/* ============ 分类头 ============ */
.page-hero{
  position:relative;
  padding:var(--sp-8) 0 var(--sp-8);
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(11,13,17,.82) 0%,rgba(11,13,17,.94) 100%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px);
}
.page-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:var(--c-text-3);margin-bottom:var(--sp-5);}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-brand);text-decoration:none;}
.breadcrumb span{color:var(--c-text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-brand);
  text-transform:uppercase;
  margin-bottom:var(--sp-4);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-brand);}
.page-hero h1{
  font-size:46px;font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:820px;
}
.page-hero__lead{
  margin:var(--sp-4) 0 var(--sp-5);
  font-size:17px;color:var(--c-text-2);
  max-width:620px;
}
.chip-row{
  display:flex;gap:var(--sp-2);flex-wrap:wrap;
  margin-bottom:var(--sp-6);
}
.chip{
  display:inline-flex;align-items:center;
  height:34px;padding:0 14px;
  border-radius:999px;
  font-size:13px;font-weight:500;
  color:var(--c-text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);
  transition:all .18s var(--ease);
}
.chip:hover{color:var(--c-brand);border-color:rgba(255,90,31,.45);background:var(--c-brand-soft);text-decoration:none;}
.chip.is-on{background:var(--c-brand);color:#0B0D11;border-color:var(--c-brand);font-weight:700;}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);
  border-top:1px solid var(--c-line);
  padding-top:var(--sp-5);
}
.stat-strip .stat__num{
  font-family:var(--font-num);
  font-size:38px;font-weight:700;line-height:1;
  color:var(--c-text-1);letter-spacing:-.01em;
}
.stat-strip .stat__num em{font-style:normal;color:var(--c-brand);}
.stat-strip .stat__label{font-size:13px;color:var(--c-text-3);margin-top:8px;display:block;}
@media (max-width:1024px){
  .page-hero h1{font-size:36px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:var(--sp-5);}
}
@media (max-width:640px){
  .page-hero{padding:48px 0 40px;}
  .page-hero h1{font-size:28px;}
  .page-hero__lead{font-size:15px;}
  .stat-strip .stat__num{font-size:30px;}
}

/* ============ 卡片 ============ */
.card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  filter:drop-shadow(0 16px 24px rgba(0,0,0,.5));
  transition:transform .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease);
  height:100%;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,90,31,.4);
  filter:drop-shadow(0 12px 26px rgba(255,90,31,.28));
}
.card__thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0f1216;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
}
.card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card__thumb img{transform:scale(1.04);}
.card__tag{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  background:rgba(11,13,17,.78);
  color:#fff;
  border:1px solid rgba(255,255,255,.12);
}
.card__body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.card__body h3{font-size:20px;line-height:1.35;}
.card__body h3 a{color:var(--c-text-1);}
.card__body h3 a:hover{color:var(--c-brand);text-decoration:none;}
.card__desc{font-size:14px;color:var(--c-text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3);}
.card__meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-text-3);}

/* 人物 / 战队卡 */
.card--person .card__thumb{aspect-ratio:4/3;}
.card--person .card__thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,17,0) 40%,rgba(11,13,17,.85) 100%);
}
.person-name{font-size:21px;font-weight:800;letter-spacing:-.01em;}
.person-tags{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-3);}
.person-tags span{
  padding:2px 10px;border-radius:999px;border:1px solid var(--c-line);color:var(--c-text-2);
}
.person-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;}
.person-row .num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--c-brand);line-height:1;}
.person-row .num small{font-size:12px;color:var(--c-text-3);font-family:inherit;font-weight:500;margin-left:4px;}

/* 网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;gap:20px;}
}

/* ============ 数据对比 ============ */
.ledger{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  padding:var(--sp-6);
}
.ledger__head{
  display:grid;grid-template-columns:1.4fr repeat(3,1fr);
  gap:16px;padding-bottom:14px;border-bottom:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);letter-spacing:.06em;
}
.ledger__row{
  display:grid;grid-template-columns:1.4fr repeat(3,1fr);
  gap:16px;align-items:center;
  padding:18px 0;border-bottom:1px solid var(--c-line);
}
.ledger__row:last-child{border-bottom:0;}
.ledger__name{font-size:16px;font-weight:700;color:var(--c-text-1);}
.ledger__name small{display:block;font-size:13px;color:var(--c-text-3);font-weight:400;margin-top:2px;}
.ledger__val{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-text-1);line-height:1;}
.ledger__val.is-hi{color:var(--c-brand);}
.ledger__val.is-accent{color:var(--c-accent);}
.ledger__val small{display:block;font-family:"Noto Sans SC",sans-serif;font-size:12px;font-weight:500;color:var(--c-text-3);margin-top:4px;}
@media (max-width:760px){
  .ledger{padding:20px;}
  .ledger__head{display:none;}
  .ledger__row{grid-template-columns:1fr 1fr;gap:12px;padding:16px 0;}
  .ledger__name{grid-column:1 / -1;}
}

/* ============ 变动列表 ============ */
.change-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.change-item{
  display:flex;gap:16px;
  padding:20px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-left:3px solid var(--c-brand);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.change-item:hover{transform:translateY(-3px);background:#1E232C;border-color:rgba(255,90,31,.4);border-left-color:var(--c-accent);}
.change-item__time{font-size:13px;color:var(--c-text-3);white-space:nowrap;min-width:74px;}
.change-item h3{font-size:17px;margin-bottom:6px;}
.change-item h3 a{color:var(--c-text-1);}
.change-item h3 a:hover{color:var(--c-brand);text-decoration:none;}
.change-item p{font-size:14px;color:var(--c-text-2);margin:0 0 10px;}
.change-item .badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  background:rgba(255,197,61,.14);color:var(--c-warn);
}
@media (max-width:760px){ .change-list{grid-template-columns:1fr;} .change-item{flex-direction:column;gap:8px;} }

/* ============ 分页 ============ */
.pagination{
  display:flex;justify-content:center;align-items:center;gap:8px;
  margin:var(--sp-7) 0 0;flex-wrap:wrap;
}
.pagination li{display:inline-flex;margin:0;}
.pagination a,.pagination .current{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 14px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-text-2);
  font-size:14px;font-weight:700;
  transition:all .18s var(--ease);
}
.pagination a:hover{background:var(--c-brand-soft);color:var(--c-brand);border-color:rgba(255,90,31,.5);text-decoration:none;}
.pagination .current{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;}
.pagination .disabled{opacity:.35;pointer-events:none;color:var(--c-text-3);}
.pagination .disabled a{color:var(--c-text-3);}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion.faq{border-top:1px solid var(--c-line);background:transparent;}
.accordion.faq .accordion-item{border-bottom:1px solid var(--c-line);background:transparent;}
.accordion.faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;
  font-size:16px;font-weight:600;
  color:var(--c-text-1);
  background:transparent;border:0;
  transition:color .2s var(--ease);
}
.accordion.faq .accordion-title:hover{color:var(--c-brand);}
.accordion.faq .accordion-title::before{
  content:"+";
  order:2;
  font-size:22px;line-height:1;font-weight:400;
  color:var(--c-brand);
  transition:transform .2s var(--ease);
  margin:0;padding:0;
}
.accordion.faq .accordion-item.is-active .accordion-title::before{transform:rotate(45deg);}
.accordion.faq .accordion-content{padding:0 0 20px;background:transparent;border:0;color:var(--c-text-2);font-size:15px;line-height:1.85;}
.accordion.faq .accordion-content p{margin:0;color:var(--c-text-2);}

/* ============ CTA / 表单 ============ */
.cta-band{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  padding:var(--sp-7);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 48px);
  pointer-events:none;
}
.cta-band__inner{position:relative;display:grid;grid-template-columns:6fr 6fr;gap:var(--sp-6);align-items:center;}
.cta-band h2{font-size:30px;margin-bottom:12px;}
.cta-band p{color:var(--c-text-2);font-size:15px;margin:0;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:8px;}
.field input{
  width:100%;height:48px;padding:0 14px;
  background:#12151B;border:1px solid var(--c-line);border-radius:var(--r-btn);
  color:var(--c-text-1);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15);}
.form-note{font-size:13px;color:var(--c-text-3);margin:10px 0 0;}
@media (max-width:900px){ .cta-band__inner{grid-template-columns:1fr;} .cta-band{padding:32px 24px;} .cta-band h2{font-size:24px;} }

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--c-footer);
  padding:var(--sp-8) 0 var(--sp-5);
  margin-top:var(--sp-8);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-brand),rgba(255,90,31,0));
}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--sp-6);}
.footer__desc{font-size:14px;color:var(--c-text-3);margin:var(--sp-4) 0 var(--sp-4);max-width:320px;}
.social-row{display:flex;gap:10px;}
.social-row span{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--c-line-strong);
  font-size:13px;color:var(--c-text-2);
}
.footer__title{font-size:15px;font-weight:700;color:var(--c-text-1);margin-bottom:var(--sp-4);}
.footer__col ul{display:flex;flex-direction:column;gap:12px;}
.footer__col li a,.footer__col li span{font-size:14px;color:var(--c-text-3);}
.footer__col li a{transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block;}
.footer__col li a:hover{color:var(--c-brand);transform:translateX(2px);text-decoration:none;}
.footer__bottom{
  margin-top:var(--sp-7);padding-top:var(--sp-5);
  border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer__bottom p{font-size:12px;color:var(--c-text-3);margin:0;}
@media (max-width:1024px){ .footer__grid{grid-template-columns:1fr 1fr;} }
@media (max-width:640px){ .footer__grid{grid-template-columns:1fr;} }

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .card:hover,.change-item:hover,.btn:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --c-light-text:#14171C;
  --c-light-text-2:#565E6B;
  --radius-s:4px;
  --radius-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-card:0 16px 40px -12px rgba(0,0,0,.55);
  --shadow-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",Impact,var(--font-cn);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{text-decoration:none;color:var(--c-brand);}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text-1);letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}

.grid-container{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}
@media screen and (min-width:1280px){
  .grid-container{max-width:1280px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,13,17,.92);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 32px -18px rgba(0,0,0,.95);}
.nav-bar{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-text-1);
  flex:0 0 auto;
}
.brand:hover{color:var(--c-text-1);}
.brand__mark{
  width:26px;
  height:26px;
  flex:0 0 auto;
  background:linear-gradient(135deg,#FF5A1F 0%,#FF9248 100%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__text{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand__sub{
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-text-3);
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.nav-chip{
  height:36px;
  display:inline-flex;
  align-items:center;
  padding:0 16px;
  border-radius:var(--radius-pill);
  font-size:14px;
  font-weight:600;
  color:var(--c-text-2);
  white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;}
.nav-chip.is-active:hover{background:var(--c-brand-hover);color:#0B0D11;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:14px 28px;
  border-radius:var(--radius-s);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--c-brand);color:#0B0D11;}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px);box-shadow:0 10px 24px -12px rgba(255,90,31,.8);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{min-height:36px;padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:700;
  color:var(--c-brand);
}
.text-link span{transition:transform .2s var(--ease);}
.text-link:hover{color:var(--c-accent);text-decoration:underline;}
.text-link:hover span{transform:translateX(4px);}

/* ---------- Chips / badges / tags ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--c-line-strong);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--c-text-2);
  white-space:nowrap;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  white-space:nowrap;
}
.badge--lv{background:var(--c-brand-soft);color:var(--c-brand);border:1px solid rgba(255,90,31,.35);}
.badge--ver{background:rgba(22,224,198,.10);color:var(--c-accent);border:1px solid rgba(22,224,198,.28);}
.badge--hot{background:rgba(255,197,61,.12);color:var(--c-warn);border:1px solid rgba(255,197,61,.3);}

.filter-chips{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:24px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--c-line-strong);
  background:transparent;
  font-size:14px;
  font-weight:600;
  color:var(--c-text-2);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.filter-chip:hover{background:var(--c-brand-soft);color:var(--c-brand);border-color:rgba(255,90,31,.4);}
.filter-chip.is-on{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;}

/* ---------- Breadcrumb ---------- */
.crumb{
  font-size:13px;
  color:var(--c-text-3);
  padding:20px 0 0;
}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li::after{content:"/";color:var(--c-text-3);}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-brand);}
.crumb strong{color:var(--c-text-2);font-weight:600;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  padding:72px 0 64px;
  background-color:#0E1116;
  background-image:
    linear-gradient(90deg,rgba(11,13,17,.95) 0%,rgba(11,13,17,.80) 48%,rgba(11,13,17,.58) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.cat-hero .grid-container{position:relative;z-index:1;}
.cat-hero__inner{max-width:760px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-brand);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--c-brand);
  display:block;
}
.cat-hero h1{
  margin:18px 0 0;
  font-size:clamp(28px,3.6vw,48px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
}
.cat-hero__lead{
  margin-top:16px;
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:640px;
}
.cat-hero__sub{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text-3);
}
.cat-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.cat-hero__stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:48px;
  padding-top:28px;
  border-top:1px solid var(--c-line);
}
.stat__num{
  font-family:var(--font-num);
  font-size:38px;
  font-weight:700;
  line-height:1;
  letter-spacing:.01em;
  color:var(--c-text-1);
}
.stat__num em{font-style:normal;color:var(--c-brand);}
.stat__label{margin-top:8px;font-size:13px;color:var(--c-text-3);}
.cat-hero__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section--tight{padding:72px 0;}
.section--light{background:var(--c-light-bg);color:var(--c-light-text);padding:104px 0;}
.section--light .section-title,
.section--light h2,
.section--light h3{color:var(--c-light-text);}
.section--light .section-sub,
.section--light p{color:var(--c-light-text-2);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-.01em;}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:620px;}

/* ---------- Steps strip ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.step{
  padding:32px 28px 32px 0;
  border-right:1px solid var(--c-line);
}
.step:last-child{border-right:0;padding-right:0;}
.step__no{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--c-brand);
}
.step h3{margin-top:14px;font-size:19px;font-weight:700;}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ---------- Row cards (alternating) ---------- */
.row-cards{display:flex;flex-direction:column;gap:24px;}
.row-card{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:32px;
  align-items:center;
  padding:24px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-s);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.row-card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--shadow-hover);}
.row-card--reverse .row-card__media{order:2;}
.row-card--reverse .row-card__body{order:1;}
.media{
  position:relative;
  overflow:hidden;
  background:#0F1218;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
}
.media img{width:100%;height:100%;object-fit:cover;}
.media--43{aspect-ratio:4/3;}
.media--169{aspect-ratio:16/9;}
.row-card__body h3{font-size:22px;line-height:1.4;}
.row-card__body h3 a{color:var(--c-text-1);}
.row-card__body h3 a:hover{color:var(--c-brand);}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.row-card__body p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
.row-card__meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:16px;
  font-size:13px;
  color:var(--c-text-3);
}
.row-card__foot{margin-top:18px;}

/* ---------- Cards grid ---------- */
.cards-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--radius-s);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--shadow-hover);}
.card__media{position:relative;}
.card__chip{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:rgba(11,13,17,.78);
  border:1px solid var(--c-line-strong);
  color:#F2F4F7;
  font-size:12px;
  font-weight:600;
  letter-spacing:.03em;
}
.card__body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card__body h3{font-size:19px;line-height:1.45;}
.card__body h3 a{color:var(--c-text-1);}
.card__body h3 a:hover{color:var(--c-brand);}
.card__desc{margin-top:12px;font-size:14px;line-height:1.8;color:var(--c-text-2);}
.card__meta{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--c-text-3);
}

/* ---------- List ---------- */
.list{border-top:1px solid var(--c-line);}
.list-item{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:8px 32px;
  padding:26px 0;
  border-bottom:1px solid var(--c-line);
  transition:padding-left .2s var(--ease);
}
.list-item:hover{padding-left:6px;}
.list-item h3{font-size:19px;line-height:1.5;}
.list-item h3 a{color:var(--c-text-1);}
.list-item h3 a:hover{color:var(--c-brand);}
.list-item__desc{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:760px;}
.list-item__side{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  white-space:nowrap;
  font-size:13px;
  color:var(--c-text-3);
}

/* ---------- Pagination ---------- */
.pagination{
  display:flex;
  justify-content:center;
  gap:8px;
  margin:48px 0 0;
  flex-wrap:wrap;
}
.pagination li a,
.pagination li span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--c-line-strong);
  background:transparent;
  color:var(--c-text-2);
  font-size:14px;
  font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.pagination li a:hover{background:var(--c-brand-soft);color:var(--c-brand);border-color:rgba(255,90,31,.4);}
.pagination li.current span,
.pagination li.current a{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;}
.pagination li.disabled span{opacity:.4;}

/* ---------- FAQ ---------- */
.faq .accordion{
  background:transparent;
  border:0;
  margin:0;
}
.faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid rgba(20,23,28,.14);
}
.faq .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 40px 22px 0;
  background:transparent;
  border:0;
  font-size:16px;
  font-weight:600;
  color:var(--c-light-text);
  position:relative;
  transition:color .18s var(--ease);
}
.faq .accordion-title:hover{color:var(--c-brand);}
.faq .accordion-title::before{
  content:"+";
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--c-brand);
  transition:transform .2s var(--ease);
  order:2;
}
.faq .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg);}
.faq .accordion-content{
  background:transparent;
  border:0;
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-light-text-2);
}

/* ---------- Subscribe ---------- */
.subscribe{
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.subscribe::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.subscribe .grid-container{position:relative;z-index:1;}
.subscribe__grid{
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:48px;
  align-items:center;
}
.subscribe h2{font-size:clamp(22px,2.4vw,30px);}
.subscribe p{margin-top:12px;font-size:15px;color:var(--c-text-2);max-width:460px;}
.form-row{display:flex;gap:12px;flex-wrap:wrap;}
.form-row input[type="email"]{
  flex:1 1 240px;
  height:48px;
  padding:0 16px;
  background:#12151B;
  border:1px solid var(--c-line-strong);
  border-radius:var(--radius-s);
  color:var(--c-text-1);
  font-size:15px;
  margin:0;
  box-shadow:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input[type="email"]::placeholder{color:var(--c-text-3);}
.form-row input[type="email"]:focus{
  outline:0;
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(255,90,31,.15);
  background:#12151B;
}
.form-note{margin-top:14px;font-size:13px;color:var(--c-text-3);}
.form-note a{color:var(--c-text-2);text-decoration:underline;}
.form-note a:hover{color:var(--c-brand);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-footer);
  border-top:1px solid var(--c-line);
  position:relative;
  padding:72px 0 32px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--c-brand),rgba(255,90,31,0));
}
.footer__grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.8;color:var(--c-text-3);max-width:320px;}
.social-row{display:flex;gap:8px;margin-top:20px;}
.social-row span{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--c-line-strong);
  font-size:13px;
  color:var(--c-text-3);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.social-row span:hover{border-color:var(--c-brand);color:var(--c-brand);}
.footer__title{font-size:15px;font-weight:700;color:var(--c-text-1);margin-bottom:18px;}
.footer__col ul li{margin-bottom:12px;font-size:14px;color:var(--c-text-3);}
.footer__col ul li a{color:var(--c-text-3);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer__col ul li a:hover{color:var(--c-brand);transform:translateX(2px);}
.footer__bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--c-line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--c-text-3);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .section{padding:64px 0;}
  .section--light{padding:80px 0;}
  .cat-hero{padding:56px 0 48px;}
  .cat-hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .cards-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .subscribe__grid{grid-template-columns:1fr;gap:28px;}
}

@media screen and (max-width:900px){
  .row-card{grid-template-columns:1fr;gap:20px;}
  .row-card--reverse .row-card__media{order:0;}
  .row-card--reverse .row-card__body{order:0;}
  .row-card__body h3{font-size:20px;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--c-line);padding:24px 0;}
  .step:last-child{border-bottom:0;}
}

@media screen and (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-bar{flex-wrap:wrap;gap:10px 12px;padding:12px 0;min-height:0;}
  .nav-chips{
    order:3;
    flex-basis:100%;
    margin:0 -20px;
    padding:2px 20px 4px;
    -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 88%,transparent 100%);
  }
  .nav-actions{margin-left:auto;}
  .brand__text{font-size:17px;}
  .brand__sub{display:none;}
  .cat-hero{padding:40px 0 40px;}
  .cat-hero__lead{font-size:15px;}
  .cat-hero__cta{gap:12px;}
  .cat-hero__cta .btn{flex:1 1 auto;padding:13px 18px;}
  .cat-hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:32px;}
  .stat__num{font-size:30px;}
  .section{padding:48px 0;}
  .section--light{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .cards-3{grid-template-columns:1fr;}
  .list-item{grid-template-columns:1fr;gap:12px;padding:22px 0;}
  .list-item__side{flex-direction:row;align-items:center;justify-content:flex-start;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .subscribe{padding:56px 0;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;}
  .pagination li a,.pagination li span{min-width:40px;min-height:40px;padding:0 12px;}
}

@media screen and (max-width:380px){
  .cat-hero__stats{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --r-sm:4px;
  --r-pill:999px;
  --sh-card:0 16px 40px -12px rgba(0,0,0,.55);
  --sh-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-pad:92px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Barlow Condensed","Arial Narrow",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand);text-decoration:none;background-color:transparent}
a:hover{color:var(--c-accent)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
::selection{background:var(--c-brand);color:#0B0D11}

/* ---------- Foundation 外观覆盖 ---------- */
.grid-container{max-width:1280px;width:100%;padding-left:32px;padding-right:32px;margin:0 auto}
.grid-container.full{padding-left:0;padding-right:0}
.button{
  border-radius:var(--r-sm);font-weight:700;font-size:15px;
  background:var(--c-brand);color:#0B0D11;border:1.5px solid transparent;
  box-shadow:none;transition:background .2s var(--ease),transform .2s var(--ease);
}
.button:hover,.button:focus{background:var(--c-brand-hover);color:#0B0D11}
.callout{background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text-2);border-radius:var(--r-sm)}
.badge{background:var(--c-brand-soft);color:var(--c-brand);border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;font-weight:600}
.top-bar{background:transparent;padding:0}
.accordion{border:0;background:transparent}
.accordion-title{border:0;color:var(--c-text-1)}
.accordion-content{border:0;background:transparent;color:var(--c-text-2)}
.show-for-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---------- 通用 ---------- */
.section{padding-top:var(--sec-pad);padding-bottom:var(--sec-pad)}
.section--tight{padding-top:64px;padding-bottom:64px}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-head__text{max-width:720px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-brand);text-transform:uppercase;margin-bottom:12px;
}
.sec-title{font-size:34px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.sec-desc{margin-top:12px;color:var(--c-text-2);font-size:16px;max-width:640px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--c-brand);white-space:nowrap;
}
.link-more::after{content:"→";transition:transform .2s var(--ease)}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;min-height:48px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  border:1.5px solid transparent;background:transparent;color:var(--c-text-1);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.btn--primary{background:var(--c-brand);color:#0B0D11}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{border-color:var(--c-brand);color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.btn--ghost:active{transform:translateY(1px)}
.btn--text{padding:8px 0;min-height:0;color:var(--c-brand);font-weight:700;border:0}
.btn--text::after{content:"→";transition:transform .2s var(--ease)}
.btn--text:hover::after{transform:translateX(4px)}
.btn--sm{padding:9px 18px;min-height:38px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,17,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 32px -18px rgba(0,0,0,.9)}
.nav-bar{display:flex;align-items:center;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-text-1);flex:0 0 auto}
.brand:hover{color:var(--c-text-1)}
.brand__mark{
  width:26px;height:26px;flex:0 0 26px;background:var(--c-brand);
  clip-path:polygon(50% 0,100% 27%,100% 73%,50% 100%,0 73%,0 27%);
  position:relative;
}
.brand__mark::after{
  content:"";position:absolute;inset:8px;background:var(--c-bg);
  clip-path:polygon(50% 0,100% 27%,100% 73%,50% 100%,0 73%,0 27%);
}
.brand__text{font-size:18px;font-weight:800;letter-spacing:.02em;line-height:1.1;display:flex;flex-direction:column}
.brand__sub{font-size:10px;font-weight:500;letter-spacing:.22em;color:var(--c-text-3);margin-top:2px}
.nav-chips{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
.nav-chip{
  position:relative;display:inline-flex;align-items:center;height:36px;
  padding:0 16px;border-radius:var(--r-pill);white-space:nowrap;
  font-size:14px;color:var(--c-text-2);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11;font-weight:700}
.nav-chip.is-active:hover{color:#0B0D11}
.nav-chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:-18px;transform:translateX(-50%);
  width:20px;height:2px;background:var(--c-brand);
}
.nav-actions{flex:0 0 auto}

/* ---------- 分类头 ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 48px),
    linear-gradient(100deg,rgba(11,13,17,.97) 0%,rgba(11,13,17,.9) 42%,rgba(11,13,17,.6) 100%);
}
.cat-hero__inner{position:relative;padding:40px 0 56px;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:28px}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb span{color:var(--c-line-strong)}
.breadcrumb [aria-current="page"]{color:var(--c-text-2)}
.cat-hero h1{
  font-size:clamp(28px,4.1vw,46px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;margin-bottom:16px;
}
.cat-hero__lead{font-size:18px;color:var(--c-text-2);max-width:620px}
.filter-row{display:flex;gap:8px;overflow-x:auto;padding:4px 0 8px;margin-top:28px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.filter-row::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);color:var(--c-text-2);font-size:14px;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
  border-top:1px solid var(--c-line);margin-top:36px;padding-top:24px;
}
.stat__num{
  font-family:var(--font-num);font-size:38px;font-weight:700;line-height:1;
  letter-spacing:.01em;color:var(--c-brand);display:block;
}
.stat__num--accent{color:var(--c-accent)}
.stat__label{font-size:13px;color:var(--c-text-3);margin-top:8px;letter-spacing:.02em}

/* ---------- 规格速览 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.spec-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:24px;box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.spec-card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-hover)}
.spec-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.spec-card__title{font-size:20px;font-weight:700}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12px;font-weight:600;
  letter-spacing:.04em;white-space:nowrap;
}
.tag--accent{background:rgba(22,224,198,.12);color:var(--c-accent)}
.tag--warn{background:rgba(255,197,61,.12);color:var(--c-warn)}
.spec-card__desc{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.spec-rows{border-top:1px solid var(--c-line)}
.spec-row{
  display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:16px;
  padding:11px 0;border-bottom:1px solid var(--c-line);
}
.spec-row:last-child{border-bottom:0}
.spec-row__k{font-size:13px;color:var(--c-text-3);letter-spacing:.02em}
.spec-row__v{
  font-family:var(--font-num);font-size:26px;font-weight:700;line-height:1;
  color:var(--c-text-1);letter-spacing:.01em;white-space:nowrap;
}
.spec-row__v small{font-family:var(--font-cn);font-size:12px;font-weight:600;color:var(--c-text-3);margin-left:3px}
.spec-row__v.is-accent{color:var(--c-accent)}

/* ---------- 选购维度条 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--c-line);
}
.step{
  padding:28px 24px 8px 0;border-right:1px solid var(--c-line);
  transition:transform .2s var(--ease);
}
.step:last-child{border-right:0}
.step:hover{transform:translateY(-4px)}
.step__no{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:var(--c-brand);letter-spacing:.02em;display:block;margin-bottom:16px;
}
.step__title{font-size:18px;font-weight:700;margin-bottom:8px}
.step__desc{font-size:14px;color:var(--c-text-2);line-height:1.7}

/* ---------- 精选卡片 ---------- */
.pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.pick-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-sm);
  box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.pick-card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-hover)}
.pick-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);}
.pick-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.pick-card:hover .pick-card__media img{transform:scale(1.04)}
.pick-card__chip{
  position:absolute;top:12px;left:12px;height:24px;display:inline-flex;align-items:center;
  padding:0 10px;border-radius:var(--r-pill);background:rgba(11,13,17,.72);
  color:#F2F4F7;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.pick-card__body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px}
.pick-card__title{font-size:19px;font-weight:700;line-height:1.4}
.pick-card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7}
.meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3);margin-top:auto}
.meta__dot{width:4px;height:4px;border-radius:50%;background:var(--c-line-strong)}

/* ---------- 装备长列表 ---------- */
.gear-list{display:grid;gap:20px}
.gear-item{
  display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:20px;box-shadow:var(--sh-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.gear-item:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--sh-hover)}
.gear-item__media{
  aspect-ratio:16/10;overflow:hidden;background:var(--c-surface);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
}
.gear-item__media img{width:100%;height:100%;object-fit:cover}
.gear-item__body{display:flex;flex-direction:column;gap:12px;min-width:0}
.gear-item__top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.gear-item__title{font-size:21px;font-weight:700;line-height:1.35}
.gear-item__desc{font-size:15px;color:var(--c-text-2);line-height:1.72}
.gear-item__stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;
  border-top:1px solid var(--c-line);padding-top:16px;margin-top:auto;
}
.gear-stat__v{font-family:var(--font-num);font-size:28px;font-weight:700;line-height:1;color:var(--c-text-1)}
.gear-stat__v.is-accent{color:var(--c-accent)}
.gear-stat__k{font-size:12px;color:var(--c-text-3);margin-top:6px;letter-spacing:.02em}
.gear-item__foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- 分页 ---------- */
.page-nav{margin-top:40px}
.pagination{margin:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pagination li{display:inline-flex;margin:0}
.pagination a,.pagination span,.pagination .current span{
  display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;
  padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  color:var(--c-text-2);font-size:14px;background:transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.pagination a:hover{background:var(--c-brand-soft);border-color:var(--c-brand);color:var(--c-brand)}
.pagination .current span{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}
.pagination .disabled span{opacity:.4;color:var(--c-text-3)}
.pagination .ellipsis{color:var(--c-text-3);border:0;min-width:auto}

/* ---------- CTA / 表单 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.9;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.026) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.026) 0 1px,transparent 1px 48px),
    radial-gradient(120% 140% at 12% 0%,rgba(255,90,31,.14) 0%,transparent 58%);
}
.cta-band__inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:48px;align-items:center}
.cta-band h2{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em}
.cta-band p{color:var(--c-text-2);margin-top:14px;font-size:16px;max-width:520px}
.sub-form{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-sm);padding:24px;box-shadow:var(--sh-card)}
.sub-form__label{display:block;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.sub-form__row{display:flex;gap:12px;flex-wrap:wrap}
.sub-form__row input[type="email"]{
  flex:1 1 200px;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--c-surface);border:1px solid var(--c-line-strong);color:var(--c-text-1);
  font-size:15px;font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form__row input[type="email"]::placeholder{color:var(--c-text-3)}
.sub-form__row input[type="email"]:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15)}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13px;color:var(--c-text-3);line-height:1.6;cursor:pointer}
.check-row input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;width:18px;height:18px;flex:0 0 18px;margin-top:2px;
  border:1.5px solid var(--c-line-strong);border-radius:3px;background:var(--c-surface);
  position:relative;cursor:pointer;transition:background .18s var(--ease),border-color .18s var(--ease);
}
.check-row input[type="checkbox"]:checked{background:var(--c-brand);border-color:var(--c-brand)}
.check-row input[type="checkbox"]:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:2px solid #0B0D11;border-top:0;border-left:0;transform:rotate(42deg);
}
.form-note{font-size:13px;color:var(--c-text-3);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);position:relative;padding-top:64px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-brand) 0%,rgba(255,90,31,0) 72%);
}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer__desc{color:var(--c-text-3);font-size:14px;margin-top:16px;max-width:340px;line-height:1.8}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row span{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--c-text-3);
}
.footer__title{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--c-text-1);margin-bottom:18px}
.footer__col ul{display:grid;gap:12px}
.footer__col a,.footer__col span{font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block}
.footer__col a:hover{color:var(--c-brand);transform:translateX(-2px)}
.footer__bottom{
  border-top:1px solid var(--c-line);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer__bottom p{font-size:12px;color:var(--c-text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .grid-container{max-width:1180px}
}
@media (max-width:1024px){
  :root{--sec-pad:64px}
  .grid-container{padding-left:28px;padding-right:28px}
  .nav-bar{flex-wrap:wrap;min-height:auto;padding:10px 0;gap:12px}
  .brand{order:1}
  .nav-actions{order:2;margin-left:auto}
  .nav-chips{
    order:3;flex:1 0 100%;margin:0 -28px;padding:4px 28px 2px;
    overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 0,#000 88%,transparent 100%);
  }
  .nav-chips::-webkit-scrollbar{display:none}
  .nav-chip.is-active::after{display:none}
  .cat-hero__inner{padding:32px 0 48px}
  .spec-grid{grid-template-columns:1fr;gap:20px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step{padding:24px 20px 8px 0}
  .step:nth-child(2){border-right:0}
  .pick-grid{grid-template-columns:1fr;gap:20px}
  .gear-item{grid-template-columns:1fr;gap:18px}
  .cta-band__inner{grid-template-columns:1fr;gap:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  :root{--sec-pad:48px}
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-chips{margin:0 -20px;padding-left:20px;padding-right:20px}
  .sec-title{font-size:24px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .cat-hero__lead{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .stat__num{font-size:30px}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--c-line);padding-bottom:24px}
  .step:last-child{border-bottom:0;padding-bottom:0}
  .spec-card{padding:20px}
  .gear-item{padding:16px}
  .gear-item__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .gear-item__title{font-size:19px}
  .cta-band h2{font-size:24px}
  .sub-form{padding:20px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category5 */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#0B0D11;
  --c-surface:#12151B;
  --c-card:#1A1E26;
  --c-footer:#08090C;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text-1:#F2F4F7;
  --c-text-2:#A8B0BD;
  --c-text-3:#6E7787;
  --c-brand:#FF5A1F;
  --c-brand-hover:#E8460C;
  --c-brand-soft:rgba(255,90,31,.12);
  --c-accent:#16E0C6;
  --c-warn:#FFC53D;
  --c-error:#FF5C7A;
  --c-light-bg:#F5F6F8;
  --c-light-text:#14171C;
  --c-light-text-2:#565E6B;
  --r-xs:4px;
  --r-pill:999px;
  --cut:10px;
  --shadow-card:0 16px 40px -12px rgba(0,0,0,.55);
  --shadow-hover:0 12px 32px -10px rgba(255,90,31,.25);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font-num:"Barlow Condensed",system-ui,-apple-system,sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-1);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-brand);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
::selection{background:var(--c-brand);color:#0B0D11}

/* ============ 容器与排版 ============ */
.grid-container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media screen and (min-width:1280px){.grid-container{max-width:1280px}}
@media screen and (max-width:1023px){.grid-container{padding-left:28px;padding-right:28px}}
@media screen and (max-width:639px){.grid-container{padding-left:20px;padding-right:20px}}
h1{font-size:48px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:34px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
h3{font-size:23px;font-weight:700;line-height:1.35}
h4{font-size:18px;font-weight:600;line-height:1.45}
p{font-size:16px;line-height:1.75;color:var(--c-text-2)}
@media screen and (max-width:1023px){h1{font-size:38px}h2{font-size:28px}}
@media screen and (max-width:639px){h1{font-size:29px}h2{font-size:24px}h3{font-size:20px}}

.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
@media screen and (max-width:1023px){.section{padding:64px 0}}
@media screen and (max-width:639px){.section{padding:48px 0}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-head__sub{font-size:14px;color:var(--c-text-3);letter-spacing:.04em;text-transform:uppercase;display:block;margin-bottom:12px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--c-brand);text-transform:uppercase;font-weight:700;margin-bottom:16px}
.lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:70ch}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,13,17,.92);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(140%) blur(8px);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -12px rgba(0,0,0,.85)}
.nav-bar{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text-1)}
.brand:hover{color:var(--c-text-1)}
.brand__mark{width:22px;height:22px;flex:0 0 auto;background:var(--c-brand);clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%)}
.brand__text{display:flex;flex-direction:column;font-size:17px;font-weight:800;line-height:1.15;letter-spacing:-.01em}
.brand__sub{font-size:10px;font-weight:500;letter-spacing:.2em;color:var(--c-text-3)}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:12px 0}
.nav-chips::-webkit-scrollbar{display:none}
.nav-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-text-2);
  white-space:nowrap;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-chip:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.nav-chip.is-active{background:var(--c-brand);color:#0B0D11}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
@media screen and (max-width:1023px){
  .nav-bar{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:8px}
  .nav-chips{order:3;width:100%;flex:1 0 100%;
    mask-image:linear-gradient(90deg,#000 84%,transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,#000 84%,transparent 100%)
  }
}
@media screen and (max-width:639px){
  .brand__text{font-size:16px}
  .nav-chip{height:34px;padding:0 13px;font-size:14px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-xs);border:1.5px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  min-height:44px;text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--primary{background:var(--c-brand);color:#0B0D11}
.btn--primary:hover{background:var(--c-brand-hover);color:#0B0D11;transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(255,90,31,.6)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn--ghost:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.btn--ghost:active{transform:translateY(1px)}
.btn--sm{padding:10px 18px;font-size:14px;min-height:0}
.btn--text{background:none;border:none;padding:0;min-height:0;color:var(--c-brand);font-weight:700}
.btn--text:hover{color:var(--c-accent)}
.btn--text .arrow{display:inline-block;transition:transform .2s var(--ease)}
.btn--text:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.button{background:var(--c-brand);color:#0B0D11;border-radius:var(--r-xs);font-weight:700}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13px;color:var(--c-text-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:20px 0 0}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb__sep{color:var(--c-text-3)}
.breadcrumb__current{color:var(--c-text-2)}

/* ============ 分类头 ============ */
.cat-hero{position:relative;overflow:hidden;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.cat-hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}
.cat-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,12,.95) 0%,rgba(8,9,12,.86) 46%,rgba(8,9,12,.62) 100%)}
.cat-hero__grid{position:absolute;inset:0;opacity:.03;
  background-image:linear-gradient(rgba(255,255,255,.8) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.8) 1px,transparent 1px);
  background-size:48px 48px}
.cat-hero__inner{position:relative;padding:72px 0 80px}
.cat-hero__title{max-width:20ch;margin:12px 0 20px}
.cat-hero__desc{font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:56ch}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--c-line-strong);
  font-size:13px;color:var(--c-text-2);transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-soft)}
.chip--on{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}
.cat-hero__stats{display:flex;flex-wrap:wrap;gap:48px;margin-top:48px;padding-top:32px;border-top:1px solid var(--c-line)}
.stat__num{font-family:var(--font-num);font-size:42px;font-weight:700;line-height:1;letter-spacing:-.01em;color:var(--c-text-1)}
.stat__num em{font-style:normal;color:var(--c-brand)}
.stat__label{font-size:13px;color:var(--c-text-3);margin-top:8px}
@media screen and (max-width:1023px){.cat-hero__stats{gap:32px}}
@media screen and (max-width:639px){
  .cat-hero__inner{padding:40px 0 48px}
  .cat-hero__stats{gap:24px;margin-top:32px}
  .stat__num{font-size:32px}
}

/* ============ 卡片 ============ */
.card{
  position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-xs);
  box-shadow:var(--shadow-card);overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--shadow-card),var(--shadow-hover)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%)}
.card:hover .card__media img{transform:scale(1.03)}
.card__tag{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(11,13,17,.72);border:1px solid var(--c-line-strong);
  font-size:12px;letter-spacing:.04em;color:var(--c-text-1);
}
.card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card__title{font-size:20px;font-weight:700;line-height:1.4;color:var(--c-text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__title a{color:inherit}
.card__title a:hover{color:var(--c-brand)}
.card__desc{font-size:15px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{margin-top:auto;font-size:13px;color:var(--c-text-3);display:flex;gap:12px;align-items:center}

/* 横排卡 */
.hcard{display:grid;grid-template-columns:5fr 7fr;gap:0;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-xs);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.hcard:hover{transform:translateY(-4px);border-color:rgba(255,90,31,.4);box-shadow:var(--shadow-card),var(--shadow-hover)}
.hcard__media{aspect-ratio:4/3;overflow:hidden;background:var(--c-surface)}
.hcard__media img{width:100%;height:100%;object-fit:cover;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%)}
.hcard__body{padding:24px;display:flex;flex-direction:column;gap:12px}
.hcard__title{font-size:21px;font-weight:700;line-height:1.4;color:var(--c-text-1)}
.hcard__title a{color:inherit}
.hcard__title a:hover{color:var(--c-brand)}
@media screen and (max-width:639px){
  .hcard{grid-template-columns:1fr}
  .hcard__media{aspect-ratio:16/9}
}

/* ============ 杂志排版：本期观察 ============ */
.magazine{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.magazine__figure{position:relative;overflow:hidden;border:1px solid var(--c-line);border-radius:var(--r-xs);background:var(--c-surface)}
.magazine__figure img{width:100%;aspect-ratio:4/3;object-fit:cover;
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%)}
.magazine__cap{font-size:13px;color:var(--c-text-3);padding:12px 4px 0}
.magazine__col p + p{margin-top:20px}
.magazine__col .btn--text{margin-top:24px}
@media screen and (max-width:1023px){.magazine{grid-template-columns:1fr;gap:32px}}

/* 精选区 */
.picks{display:grid;grid-template-columns:6fr 6fr;gap:24px}
.picks__big{grid-row:span 2}
.picks__big .card__media{aspect-ratio:4/3}
.picks__big .card__title{font-size:24px;-webkit-line-clamp:2}
@media screen and (max-width:1023px){
  .picks{grid-template-columns:1fr}
  .picks__big{grid-row:auto}
}

/* 引用条 */
.quote-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);position:relative;overflow:hidden}
.quote-band__grid{position:absolute;inset:0;opacity:.03;
  background-image:linear-gradient(rgba(255,255,255,.8) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.8) 1px,transparent 1px);
  background-size:48px 48px}
.quote-band__inner{position:relative;padding:80px 0}
.quote-band blockquote{
  position:relative;padding-left:32px;border-left:3px solid var(--c-brand);
  font-size:24px;line-height:1.65;font-weight:600;color:var(--c-text-1);max-width:34ch;
}
.quote-band__from{margin-top:24px;padding-left:35px;font-size:13px;color:var(--c-text-3)}
@media screen and (max-width:639px){
  .quote-band__inner{padding:48px 0}
  .quote-band blockquote{font-size:19px;padding-left:20px}
  .quote-band__from{padding-left:23px}
}

/* ============ 长列表 ============ */
.longlist{border-top:1px solid var(--c-line)}
.longlist__item{
  display:grid;grid-template-columns:132px 1fr auto;gap:32px;align-items:start;
  padding:32px 0;border-bottom:1px solid var(--c-line);
  transition:background-color .2s var(--ease);
}
.longlist__item:hover{background:rgba(255,255,255,.015)}
.longlist__date{font-family:var(--font-num);font-size:15px;letter-spacing:.06em;color:var(--c-text-3);padding-top:4px}
.longlist__title{font-size:20px;font-weight:700;line-height:1.45;color:var(--c-text-1)}
.longlist__title a{color:inherit}
.longlist__title a:hover{color:var(--c-brand)}
.longlist__desc{font-size:15px;line-height:1.75;color:var(--c-text-2);margin-top:10px;max-width:62ch}
.longlist__tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);font-size:12px;letter-spacing:.04em;color:var(--c-text-2);white-space:nowrap;
}
@media screen and (max-width:1023px){
  .longlist__item{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .longlist__date{padding-top:0}
}
@media screen and (max-width:639px){
  .longlist__item{padding:20px 0;gap:10px}
}

/* ============ 分页 ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:48px;flex-wrap:wrap}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  font-size:14px;color:var(--c-text-2);background:transparent;
  transition:all .18s var(--ease);
}
.pager a:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-soft)}
.pager .is-current{background:var(--c-brand);border-color:var(--c-brand);color:#0B0D11;font-weight:700}
.pager .is-disabled{opacity:.4;cursor:not-allowed}
.pagination{margin:0}

/* ============ CTA 与表单 ============ */
.cta-band{background:var(--c-footer);border-top:1px solid var(--c-line);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-brand),rgba(255,90,31,0))}
.cta-band__grid{position:absolute;inset:0;opacity:.03;
  background-image:linear-gradient(rgba(255,255,255,.8) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.8) 1px,transparent 1px);
  background-size:48px 48px}
.cta-band__inner{position:relative;padding:88px 0;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.cta-band h2{max-width:22ch}
.cta-band p{margin-top:16px;max-width:48ch}
.cta-form__label{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:8px;letter-spacing:.04em}
.cta-form__row{display:flex;gap:12px}
.cta-form input[type="email"]{
  flex:1 1 auto;height:48px;padding:0 16px;border-radius:var(--r-xs);
  background:var(--c-surface);border:1px solid var(--c-line-strong);color:var(--c-text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-form input[type="email"]::placeholder{color:var(--c-text-3)}
.cta-form input[type="email"]:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(255,90,31,.15)}
.cta-form input.is-error{border-color:var(--c-error)}
.cta-form__hint{font-size:13px;color:var(--c-text-3);margin-top:12px;line-height:1.7}
.cta-form__hint.is-error{color:var(--c-error)}
.cta-form__hint.is-ok{color:var(--c-accent)}
.checkline{display:flex;align-items:flex-start;gap:10px;margin-top:16px;font-size:13px;color:var(--c-text-3);line-height:1.6}
.checkline input{appearance:none;-webkit-appearance:none;width:18px;height:18px;flex:0 0 auto;margin-top:2px;
  border:1px solid var(--c-line-strong);border-radius:3px;background:var(--c-surface);cursor:pointer;position:relative}
.checkline input:checked{background:var(--c-brand);border-color:var(--c-brand)}
.checkline input:checked::after{content:"";position:absolute;left:5px;top:1px;width:6px;height:11px;
  border:solid #0B0D11;border-width:0 2px 2px 0;transform:rotate(45deg)}
@media screen and (max-width:1023px){
  .cta-band__inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
}
@media screen and (max-width:639px){
  .cta-band__inner{padding:48px 0}
  .cta-form__row{flex-direction:column}
  .cta-form__row .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);position:relative;padding:72px 0 32px;border-top:1px solid var(--c-line)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-brand),rgba(255,90,31,0))}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px}
.footer__desc{font-size:14px;line-height:1.8;color:var(--c-text-3);margin-top:20px;max-width:36ch}
.footer__title{font-size:15px;font-weight:700;color:var(--c-text-1);margin-bottom:20px}
.footer__col li{margin-bottom:12px}
.footer__col a,.footer__col span{font-size:14px;color:var(--c-text-3);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer__col a:hover{color:var(--c-brand);transform:translateX(2px)}
.social-row{display:flex;gap:10px;margin-top:24px}
.social-row span{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--c-text-3);
}
.footer__bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer__bottom p{font-size:12px;color:var(--c-text-3)}
@media screen and (max-width:1023px){
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:639px){
  .site-footer{padding:48px 0 24px}
  .footer__grid{grid-template-columns:1fr;gap:32px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}