/* roulang page: index */
:root{
  --felt-950:#0B1A15;
  --felt-900:#0E2A21;
  --felt-700:#164638;
  --felt-500:#2C6B55;
  --ember:#E2552F;
  --ember-700:#B93D1C;
  --brass:#C9A227;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:rgba(11,26,21,0.10);
  --ink-2:#5C6B63;
  --radius-card:16px;
  --radius-lg:18px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,26,21,0.06);
  --shadow-2:0 10px 28px rgba(11,26,21,0.10);
  --shadow-3:0 6px 20px rgba(11,26,21,0.12);
  --ease:cubic-bezier(0.22,1,0.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--felt-950);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",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:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4,h5{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;font-weight:700;line-height:1.26;letter-spacing:-0.01em;margin:0}
:focus-visible{outline:3px solid rgba(226,85,47,0.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(14,42,33,0.35);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:background .24s var(--ease),height .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(14,42,33,0.94);
  box-shadow:var(--shadow-3);
  border-bottom-color:rgba(255,255,255,0.12);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .24s var(--ease)}
.site-header.is-stuck .nav-inner{height:64px}
.logo{display:flex;align-items:baseline;gap:8px;color:#fff;flex-shrink:0}
.logo__main{font-family:"Noto Serif SC","Songti SC",serif;font-size:20px;font-weight:700;letter-spacing:.04em}
.logo__sub{font-size:12px;color:rgba(255,255,255,0.72);letter-spacing:.18em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-block;padding:8px 14px;font-size:15px;
  color:rgba(255,255,255,0.86);border-radius:8px;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--ember);transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:60%}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{width:60%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:rgba(255,255,255,0.85);border:1px solid rgba(255,255,255,0.18);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,0.10);color:#fff;border-color:rgba(255,255,255,0.35)}
.burger{display:none}
.nav-cta{padding:10px 20px;font-size:14px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  transition:transform .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease);
}
.btn--primary{background:var(--ember);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--ember-700);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.35)}
.btn--ghost:hover{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.6)}
.btn--outline{background:transparent;color:var(--felt-950);border:1px solid var(--line)}
.btn--outline:hover{background:rgba(44,107,85,0.08);border-color:var(--felt-500);color:var(--felt-700)}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:79;
  width:min(320px,86vw);padding:96px 26px 32px;
  background:rgba(14,42,33,0.98);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:4px;
}
.nav-drawer.is-open{transform:none}
.nav-drawer a{
  color:rgba(255,255,255,0.88);font-size:16px;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,0.10);
}
.nav-drawer a:hover{color:var(--ember)}
.nav-drawer .btn{margin-top:22px;color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--felt-900);color:#fff;
  padding:150px 0 0;overflow:hidden;
}
.hero__bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.38;
}
.hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,26,21,0.86) 0%,rgba(11,26,21,0.72) 45%,rgba(11,26,21,0.94) 100%);
}
.hero__inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding-bottom:64px}
.hero__kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--brass);border:1px solid rgba(201,162,39,0.55);border-radius:999px;
  padding:6px 14px;margin-bottom:22px;
}
.hero__kicker::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brass)}
.hero h1{font-size:clamp(30px,4.4vw,52px);color:#fff;max-width:15em}
.hero__sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(255,255,255,0.78);max-width:32em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 24px 50px rgba(0,0,0,0.38)}
.hero__figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero__figure span{
  position:absolute;left:14px;bottom:14px;font-size:12px;letter-spacing:.1em;
  color:#fff;background:rgba(14,42,33,0.78);border:1px solid rgba(255,255,255,0.16);
  padding:7px 14px;border-radius:999px;
}
.hero-stats{
  position:relative;border-top:1px solid rgba(255,255,255,0.14);
  background:rgba(11,26,21,0.55);
}
.hero-stats ul{display:grid;grid-template-columns:repeat(4,1fr)}
.hero-stats li{padding:26px 24px;border-left:1px solid rgba(255,255,255,0.10)}
.hero-stats li:first-child{border-left:0}
.hero-stats .num{font-family:"Noto Serif SC","Songti SC",serif;font-size:34px;line-height:1;color:#fff}
.hero-stats .lab{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,0.68);letter-spacing:.04em}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-head .eyebrow{
  display:block;font-size:12px;letter-spacing:.2em;color:var(--felt-500);
  margin-bottom:12px;font-family:system-ui,sans-serif;font-weight:600;
}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15px;max-width:46em}
.text-link{
  font-size:14px;font-weight:600;color:var(--felt-700);white-space:nowrap;
  border-bottom:1px solid rgba(22,70,56,0.3);padding-bottom:3px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.text-link:hover{color:var(--ember);border-color:var(--ember)}

/* ---------- 主题封面区 ---------- */
.cover-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px}
.cover-main,.cover-side{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);background:#e9e7e0}
.cover-main img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.cover-side{display:grid;gap:24px}
.cover-side .cover-thumb{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.cover-side .cover-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.cover-main:hover img,.cover-side .cover-thumb:hover img{transform:scale(1.04)}
.cover-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(14,42,33,0.82);color:#fff;font-size:13px;
  padding:8px 16px;border-radius:999px;border:1px solid rgba(255,255,255,0.16);
}
.cover-main::after,.cover-thumb::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,26,21,0) 45%,rgba(11,26,21,0.55) 100%);
}

/* ---------- 目录区 ---------- */
.catalog-list{border-top:1px solid var(--line)}
.cat-row{border-bottom:1px solid var(--line)}
.cat-row a{
  display:grid;grid-template-columns:78px 1fr 40px;align-items:center;gap:20px;
  padding:0 12px;min-height:80px;transition:background .3s var(--ease);
}
.cat-row a:hover{background:linear-gradient(90deg,rgba(44,107,85,0.06),transparent)}
.cat-row__num{
  font-family:"Noto Serif SC","Songti SC",serif;font-size:26px;color:var(--felt-500);
  font-variant-numeric:tabular-nums;transition:transform .3s var(--ease),color .3s var(--ease);
}
.cat-row a:hover .cat-row__num{transform:scale(1.06);color:var(--ember)}
.cat-row__text strong{display:block;font-size:17px;font-weight:600;font-family:system-ui,sans-serif}
.cat-row__text em{display:block;font-style:normal;font-size:13.5px;color:var(--ink-2);margin-top:4px}
.cat-row__arrow{font-size:18px;color:var(--felt-500);text-align:right;transition:transform .3s var(--ease),color .3s var(--ease)}
.cat-row a:hover .cat-row__arrow{transform:translateX(4px);color:var(--ember)}

/* ---------- 精选条目 ---------- */
.feature-list{display:grid;gap:24px}
.feature-card{
  display:grid;grid-template-columns:4fr 6fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(44,107,85,0.35)}
.feature-card__media{overflow:hidden;background:#e9e7e0}
.feature-card__media img{width:100%;height:100%;min-height:200px;object-fit:cover;transition:transform .5s var(--ease)}
.feature-card:hover .feature-card__media img{transform:scale(1.04)}
.feature-card__body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.feature-card__body h3{font-size:21px}
.feature-card__body p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-2)}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(44,107,85,0.12);color:var(--felt-700);
}
.pill--brass{background:transparent;border:1px solid rgba(201,162,39,0.7);color:#8a6f13}

/* ---------- CMS 卡片网格 ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(44,107,85,0.35)}
.post-card__link{display:flex;flex-direction:column;height:100%}
.post-card__thumb{position:relative;overflow:hidden;background:#e9e7e0}
.post-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.post-card:hover .post-card__thumb img{transform:scale(1.04)}
.post-card__cat{
  position:absolute;left:12px;bottom:12px;background:rgba(14,42,33,0.85);color:#fff;
  font-size:12px;padding:5px 12px;border-radius:999px;border:1px solid rgba(255,255,255,0.16);
}
.post-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-card__body h3{
  font-family:system-ui,sans-serif;font-size:17.5px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__body p{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--ink-2);padding-top:14px;border-top:1px solid var(--line);
}
.post-card__more{color:var(--felt-700);font-weight:600}
.post-card:hover .post-card__more{color:var(--ember)}
.empty-state{
  border:1px dashed rgba(44,107,85,0.4);border-radius:var(--radius-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:32px;color:var(--ink-2);font-size:15px;
}

/* ---------- 推荐标签流 ---------- */
.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tag-card{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.tag-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(44,107,85,0.35)}
.tag-card h3{font-family:system-ui,sans-serif;font-size:16px;font-weight:600;margin-bottom:10px}
.tag-card .pill{background:rgba(44,107,85,0.10)}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:44px 0;
}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.2vw,26px)}
.cta-band p{margin-top:8px;color:var(--ink-2);font-size:14.5px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;font-size:18px;font-weight:600;
  font-family:system-ui,sans-serif;color:var(--felt-950);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--felt-700)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(44,107,85,0.4);color:var(--felt-500);
  display:grid;place-items:center;font-size:15px;line-height:1;
  transition:transform .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--ember);border-color:rgba(226,85,47,0.5)}
.faq-a{display:none;padding:0 4px 26px}
.faq-item.is-open .faq-a{display:block;animation:faqFade .22s var(--ease)}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);max-width:60em}
@keyframes faqFade{from{opacity:0}to{opacity:1}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--felt-900);color:rgba(255,255,255,0.86);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:0;padding:68px 0 54px}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,0.10)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col h4{font-family:system-ui,sans-serif;font-size:13px;font-weight:600;color:rgba(255,255,255,0.70);letter-spacing:.08em;margin-bottom:18px}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col li{font-size:14px;color:rgba(255,255,255,0.86);line-height:1.7}
.footer-col a:hover{color:var(--ember)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,0.72);margin-top:18px;max-width:30em;line-height:1.85}
.footer-logo{display:flex;align-items:baseline;gap:8px;color:#fff}
.footer-logo .logo__main{font-size:19px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.10);padding:22px 0}
.footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,0.55)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero__inner{grid-template-columns:1fr;gap:40px;padding-bottom:48px}
  .hero__figure{max-width:520px}
  .cover-grid{grid-template-columns:1fr}
  .cover-side{grid-template-columns:1fr 1fr}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .tag-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;padding:56px 0 40px}
  .footer-col:nth-child(3){padding-left:0;border-left:0}
  .nav-links{display:none}
  .burger{display:grid}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section,.section--tight{padding:56px 0}
  .hero{padding-top:118px}
  .hero h1{font-size:clamp(28px,8vw,36px)}
  .hero__figure{max-width:100%}
  .hero-stats ul{grid-template-columns:1fr 1fr}
  .hero-stats li{padding:20px;border-left:0;border-top:1px solid rgba(255,255,255,0.10)}
  .hero-stats li:nth-child(1),.hero-stats li:nth-child(2){border-top:0}
  .hero-stats .num{font-size:28px}
  .cover-side{grid-template-columns:1fr}
  .cms-grid,.tag-grid{grid-template-columns:1fr}
  .cat-row a{grid-template-columns:52px 1fr 24px;gap:14px;min-height:auto;padding:18px 8px}
  .cat-row__num{font-size:20px}
  .feature-card{grid-template-columns:1fr}
  .feature-card__media img{min-height:170px}
  .feature-card__body{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;gap:32px}
  .footer-col{padding:0;border-left:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --felt-950:#0B1A15;
  --felt-900:#0E2A21;
  --felt-700:#164638;
  --felt-500:#2C6B55;
  --ember:#E2552F;
  --ember-700:#B93D1C;
  --brass:#C9A227;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:rgba(11,26,21,0.10);
  --ink-2:#5C6B63;
  --r-card:16px;
  --r-lg:18px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(11,26,21,0.06);
  --sh-2:0 10px 28px rgba(11,26,21,0.10);
  --sh-3:0 6px 20px rgba(11,26,21,0.12);
  --ease:cubic-bezier(0.22,1,0.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--paper);
  color:var(--felt-950);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body a{color:var(--felt-700);text-decoration:none;}
img{max-width:100%;display:block;}
.serif,.hero-title,.sec-title,.num,.stat-num{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid rgba(226,85,47,0.32);outline-offset:2px;border-radius:6px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(14,42,33,0.35);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.08);
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease),height 240ms var(--ease);
}
.site-header.is-scrolled{background:rgba(14,42,33,0.94);box-shadow:var(--sh-3);}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height 240ms var(--ease);}
.site-header.is-scrolled .nav-inner{height:64px;}
.logo{display:flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.logo__main{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  font-size:21px;letter-spacing:.06em;color:#fff;font-weight:700;
}
.logo__sub{font-size:12px;letter-spacing:.18em;color:var(--brass);}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:14px;}
.nav-links a{
  position:relative;font-size:15px;color:rgba(255,255,255,0.86);
  padding:6px 0;transition:color 200ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;
  background:var(--ember);transform:scaleX(0);transform-origin:center;
  transition:transform 200ms var(--ease);
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:#fff;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  color:#fff;border:1px solid rgba(255,255,255,0.22);background:rgba(255,255,255,0.06);
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,0.16);border-color:rgba(255,255,255,0.42);}
.burger{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease),color 200ms var(--ease);
}
.btn--primary{background:var(--ember);color:#fff;box-shadow:var(--sh-1);}
.btn--primary:hover{background:var(--ember-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--felt-950);}
.btn--ghost:hover{background:rgba(44,107,85,0.08);border-color:var(--felt-500);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:150px 0 86px;
  background:
    linear-gradient(180deg,rgba(14,42,33,0.72),rgba(11,26,21,0.9)),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,0.10);
}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 22px;padding:0;font-size:13px;}
.breadcrumb li{color:rgba(255,255,255,0.68);display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,0.35);}
.breadcrumb a{color:rgba(255,255,255,0.78);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb li:last-child{max-width:360px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;display:block;}
.hero-title{
  margin:0 0 20px;max-width:820px;
  font-size:clamp(28px,3.5vw,42px);line-height:1.28;letter-spacing:-0.01em;font-weight:700;
}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:rgba(255,255,255,0.72);}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--brass);display:inline-block;}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;background:rgba(44,107,85,0.16);color:#BEE0D0;
  border:1px solid transparent;
}
.pill--brass{border-color:rgba(201,162,39,0.65);color:#EBD79B;background:rgba(201,162,39,0.10);}

/* ---------- article layout ---------- */
.article-wrap{margin-top:-32px;position:relative;z-index:5;padding-bottom:96px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:48px 48px 40px;
}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:#1C2A23;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.2vw,27px);line-height:1.42;font-weight:700;
  margin:48px 0 16px;padding-top:26px;border-top:1px solid var(--line);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:24px;background:var(--ember);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:32px 0 12px;color:var(--felt-950);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;list-style:none;}
.article-body li{position:relative;padding-left:22px;line-height:1.85;margin-bottom:.5em;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.74em;width:7px;height:7px;background:var(--felt-500);
}
.article-body ol{counter-reset:artol;}
.article-body ol>li{counter-increment:artol;}
.article-body ol>li::before{
  content:counter(artol);position:absolute;left:0;top:0;color:var(--ember);
  font-family:"Noto Serif SC","Songti SC",serif;font-size:15px;line-height:1.9;
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:var(--paper);
  border-left:4px solid var(--felt-700);border-radius:0 12px 12px 0;color:#2C3A33;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:26px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body a{
  color:var(--felt-700);text-decoration:underline;
  text-decoration-color:rgba(22,70,56,0.35);text-underline-offset:3px;
}
.article-body a:hover{color:var(--ember);text-decoration-color:rgba(226,85,47,0.5);}
.article-body strong{color:var(--felt-950);}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(44,107,85,0.06);font-weight:600;}
.article-body code{
  background:rgba(44,107,85,0.08);padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:var(--felt-950);color:#E7F0EB;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed rgba(44,107,85,0.4);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;background:rgba(255,255,255,0.6);
}
.empty-state h2{margin:0 0 12px;font-size:22px;}
.empty-state p{margin:0 auto 24px;max-width:520px;color:var(--ink-2);font-size:15px;}

/* ---------- article foot ---------- */
.article-foot{
  max-width:760px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
}
.article-foot p{margin:0;font-size:14px;color:var(--ink-2);}
.article-foot .foot-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-box{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-title{font-size:13px;letter-spacing:.14em;color:var(--ink-2);margin:0 0 14px;font-weight:600;}
#tocList{list-style:none;margin:0;padding:0;counter-reset:toc;}
#tocList li{margin-bottom:10px;font-size:14px;line-height:1.6;}
#tocList li a{color:#2C3A33;display:block;padding-left:14px;border-left:2px solid transparent;transition:color 200ms var(--ease),border-color 200ms var(--ease);}
#tocList li a:hover{color:var(--ember);border-left-color:var(--ember);}
#tocList li.toc-l3{padding-left:14px;font-size:13px;}
#tocList li.toc-l3 a{color:var(--ink-2);}
.side-links{list-style:none;margin:0;padding:0;}
.side-links li{padding:12px 0;border-bottom:1px solid var(--line);}
.side-links li:last-child{border-bottom:0;padding-bottom:0;}
.side-links a{font-size:14px;line-height:1.6;color:var(--felt-950);transition:color 200ms var(--ease);}
.side-links a:hover{color:var(--ember);}

/* ---------- sections ---------- */
.section{padding:0 0 88px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-title{font-size:clamp(22px,2.4vw,28px);margin:0;font-weight:700;letter-spacing:-0.01em;}
.sec-desc{margin:8px 0 0;color:var(--ink-2);font-size:15px;max-width:640px;}
.text-link{font-size:14px;color:var(--felt-700);border-bottom:1px solid rgba(22,70,56,0.3);padding-bottom:2px;}
.text-link:hover{color:var(--ember);border-color:rgba(226,85,47,0.45);}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform 300ms var(--ease),box-shadow 300ms var(--ease),border-color 300ms var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,107,85,0.35);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(44,107,85,0.08);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.card:hover .card__media img{transform:scale(1.04);}
.tagline{
  position:absolute;left:14px;bottom:14px;background:rgba(14,42,33,0.82);color:#fff;
  font-size:12px;padding:5px 10px;border-radius:999px;letter-spacing:.02em;
}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__title{
  font-size:18px;line-height:1.45;font-weight:600;margin:0;color:var(--felt-950);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__text{
  font-size:14px;line-height:1.7;color:var(--ink-2);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;gap:10px;font-size:12px;color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 40px 22px 0;position:relative;font-size:18px;font-weight:600;color:var(--felt-950);
  font-family:inherit;transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--ember);}
.faq-q .faq-icon{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--felt-500);transition:transform 180ms var(--ease),color 180ms var(--ease);
}
.faq-item.is-open .faq-q{color:var(--ember);}
.faq-item.is-open .faq-icon{transform:translateY(-50%) rotate(45deg);color:var(--ember);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease);}
.faq-a p{margin:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:820px;}

/* ---------- cta band ---------- */
.cta-band{background:#FBF9F4;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0;}
.cta-band__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;}
.cta-band__text{margin:0;font-size:17px;font-weight:600;color:var(--felt-950);}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--felt-900);color:rgba(255,255,255,0.86);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-col+.footer-col{border-left:1px solid rgba(255,255,255,0.10);padding-left:36px;}
.footer-logo{display:flex;align-items:baseline;gap:8px;margin-bottom:16px;}
.site-footer .logo__sub{color:var(--brass);}
.footer-brand p{margin:0;font-size:14px;line-height:1.85;color:rgba(255,255,255,0.72);max-width:420px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,0.70);margin:0 0 16px;font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col ul li{margin-bottom:11px;font-size:14px;color:rgba(255,255,255,0.72);}
.footer-col ul li a{color:rgba(255,255,255,0.86);font-size:14px;transition:color 200ms var(--ease);}
.footer-col ul li a:hover{color:var(--ember);}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,0.10);padding:20px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:12px;color:rgba(255,255,255,0.55);}

/* ---------- toast ---------- */
#toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,16px);
  background:var(--felt-950);color:#fff;font-size:14px;padding:11px 20px;border-radius:999px;
  opacity:0;pointer-events:none;transition:opacity 240ms var(--ease),transform 240ms var(--ease);z-index:120;
}
#toast.is-show{opacity:1;transform:translate(-50%,0);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;}
  .article-side{position:sticky;top:104px;}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;margin:0;display:none;flex-direction:column;
    align-items:flex-start;gap:0;background:var(--felt-900);padding:14px 24px 24px;
    border-bottom:1px solid rgba(255,255,255,0.10);box-shadow:var(--sh-3);
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,0.08);font-size:16px;}
  .nav-links a::after{display:none;}
  .icon-btn{border-color:rgba(255,255,255,0.22);}
  .burger{display:inline-flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col+.footer-col{border-left:0;padding-left:0;}
}
@media (max-width:900px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-card{padding:32px 26px;}
  .section{padding-bottom:64px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .page-hero{padding:126px 0 70px;}
  .nav-cta{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .article-card{padding:26px 20px;}
  .article-body{font-size:16.5px;}
  .faq-q{font-size:16px;padding-right:34px;}
  .section{padding-bottom:56px;}
  .cta-band__inner{align-items:flex-start;}
}
@media (max-width:520px){
  .hero-meta{font-size:12.5px;}
  .breadcrumb li:last-child{max-width:180px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{scroll-behavior:auto !important;}
  .card:hover{transform:none;}
  .card:hover .card__media img{transform:none;}
}

/* roulang page: category1 */
:root{
  --felt-950:#0B1A15;--felt-900:#0E2A21;--felt-700:#164638;--felt-500:#2C6B55;
  --ember:#E2552F;--ember-700:#B93D1C;--brass:#C9A227;
  --paper:#F6F4EF;--card:#FFFFFF;--line:rgba(11,26,21,.10);--ink-2:#5C6B63;
  --r-card:16px;--r-cover:18px;--r-btn:10px;
  --sh-1:0 1px 2px rgba(11,26,21,.06);
  --sh-2:0 10px 28px rgba(11,26,21,.10);
  --sh-3:0 6px 20px rgba(11,26,21,.12);
  --ease:cubic-bezier(.22,1,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--felt-950);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(226,85,47,.18)}
:focus-visible{outline:3px solid rgba(226,85,47,.35);outline-offset:2px;border-radius:6px}
.nums{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;background:rgba(14,42,33,.35);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08);
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease)}
.site-header.is-scrolled{background:rgba(14,42,33,.94);box-shadow:var(--sh-3);border-bottom-color:rgba(255,255,255,.10)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:72px;transition:height 240ms var(--ease)}
.site-header.is-scrolled .nav-inner{height:64px}
.logo{display:flex;align-items:baseline;gap:8px;color:#fff;flex:0 0 auto}
.logo__main{font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:.14em}
.logo__sub{font-size:12px;letter-spacing:.2em;color:rgba(255,255,255,.7)}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:rgba(255,255,255,.86);padding:6px 2px;transition:color 200ms var(--ease)}
.nav-links a::after{content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;background:var(--ember);
  transform:scaleX(0);transform-origin:center;transition:transform 200ms var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;
  color:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.18);transition:all 240ms var(--ease)}
.icon-btn:hover{color:#fff;border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.08)}
.burger{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;transition:transform 240ms var(--ease),background 240ms var(--ease),
  box-shadow 240ms var(--ease),border-color 240ms var(--ease),color 240ms var(--ease)}
.btn--primary{background:var(--ember);color:#fff;box-shadow:0 6px 16px rgba(226,85,47,.22)}
.btn--primary:hover{background:var(--ember-700);transform:translateY(-1px);box-shadow:0 12px 24px rgba(185,61,28,.26)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.6)}
.btn--outline{border:1px solid var(--line);color:var(--felt-950);background:#fff}
.btn--outline:hover{border-color:var(--felt-500);background:rgba(44,107,85,.08)}
.nav-cta{padding:10px 18px}
@media(max-width:900px){
  .burger{display:inline-flex}
  .nav-links{position:fixed;top:64px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;
    background:var(--felt-900);padding:12px 24px 22px;box-shadow:var(--sh-3);display:none}
  .nav-links.is-open{display:flex}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:16px}
  .nav-links a::after{display:none}
}
@media(max-width:560px){
  .nav-cta{padding:9px 13px;font-size:13px}
  .icon-btn.search-btn{display:none}
}

/* ---------- page hero ---------- */
.page-hero{position:relative;background-color:var(--felt-900);
  background-image:linear-gradient(180deg,rgba(11,26,21,.74) 0%,rgba(11,26,21,.88) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;padding:150px 0 78px}
.page-hero__inner{max-width:820px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:22px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"／";color:rgba(255,255,255,.34)}
.crumb a:hover{color:#fff}
.crumb [aria-current]{color:rgba(255,255,255,.92)}
.page-hero h1{font-family:var(--serif);font-size:clamp(28px,4.1vw,46px);line-height:1.22;letter-spacing:-.01em;font-weight:600}
.page-hero .lede{margin-top:20px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.78);max-width:660px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;
  background:rgba(44,107,85,.28);color:#DCEAE2}
.chip--brass{background:transparent;border:1px solid rgba(201,162,39,.6);color:#E6CF7A}
@media(max-width:640px){.page-hero{padding:124px 0 56px}}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}
.section-head h2{font-family:var(--serif);font-size:clamp(22px,2.7vw,30px);font-weight:600}
.section-head p{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.16em;color:var(--felt-500);margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brass)}
@media(max-width:1024px){.section{padding:72px 0}}
@media(max-width:640px){.section{padding:56px 0}.section-head{flex-direction:column;align-items:flex-start;gap:14px}}

/* ---------- index list ---------- */
.index-list{border-bottom:1px solid var(--line)}
.index-row{display:grid;grid-template-columns:78px 1fr 46px;align-items:center;gap:20px;padding:24px 14px;
  border-top:1px solid var(--line);transition:background 300ms var(--ease)}
.index-row:hover{background:linear-gradient(90deg,rgba(44,107,85,.07),transparent)}
.index-row .num{font-family:var(--serif);font-size:clamp(20px,2.3vw,28px);color:rgba(11,26,21,.24);
  transition:color 300ms var(--ease),transform 300ms var(--ease)}
.index-row:hover .num{color:var(--ember);transform:scale(1.06)}
.index-row h3{font-size:18px;font-weight:600;line-height:1.45}
.index-row p{margin-top:7px;font-size:14px;color:var(--ink-2);line-height:1.7}
.index-row .go{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;
  border:1px solid var(--line);color:var(--felt-700);transition:transform 300ms var(--ease),border-color 300ms var(--ease),background 300ms var(--ease)}
.index-row:hover .go{transform:translateX(4px);border-color:rgba(44,107,85,.45);background:rgba(44,107,85,.08)}
@media(max-width:640px){
  .index-row{grid-template-columns:52px 1fr 34px;gap:12px;padding:20px 6px}
  .index-row h3{font-size:16.5px}
  .index-row .go{width:32px;height:32px}
}

/* ---------- quick strip ---------- */
.quick{background:var(--felt-900);color:#fff;padding:66px 0}
.quick h2{font-family:var(--serif);font-size:clamp(21px,2.5vw,28px);color:#fff}
.quick-note{margin-top:12px;font-size:14.5px;color:rgba(255,255,255,.66);max-width:620px}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:36px}
.quick-item{padding:0 30px;border-left:1px solid rgba(255,255,255,.12)}
.quick-item:first-child{border-left:0;padding-left:0}
.quick-item h3{font-size:16px;color:#fff;line-height:1.5}
.quick-item p{margin-top:12px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72)}
@media(max-width:1023px){
  .quick-grid{grid-template-columns:1fr;margin-top:26px}
  .quick-item{border-left:0;padding:20px 0 0;border-top:1px solid rgba(255,255,255,.12)}
  .quick-item:first-child{padding-top:0;border-top:0}
}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.check-list li{position:relative;padding-left:24px;margin-top:20px;font-size:15.5px;line-height:1.85;color:#31443B}
.check-list li:first-child{margin-top:0}
.check-list li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;background:var(--felt-500);border-radius:2px}
.check-list strong{color:var(--felt-950);font-weight:600}
.check-figure{position:relative;border-radius:var(--r-cover);overflow:hidden;box-shadow:var(--sh-2);background:rgba(44,107,85,.08)}
.check-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 500ms var(--ease)}
.check-figure:hover img{transform:scale(1.04)}
.check-figure figcaption{position:absolute;left:14px;bottom:14px;background:rgba(11,26,21,.72);color:#fff;
  font-size:12.5px;padding:6px 12px;border-radius:999px}
@media(max-width:1024px){.check-grid{grid-template-columns:1fr;gap:36px}}

/* ---------- cta band ---------- */
.cta-band{background:var(--card);border:1px solid var(--line);border-radius:var(--r-cover);padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--sh-1)}
.cta-band h2{font-family:var(--serif);font-size:clamp(20px,2.3vw,26px)}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex:0 0 auto}
@media(max-width:900px){.cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}.cta-actions{flex-wrap:wrap}}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rel-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);transition:transform 300ms var(--ease),box-shadow 300ms var(--ease),border-color 300ms var(--ease)}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,107,85,.35)}
.rel-card h3{font-size:19px;margin-top:14px}
.rel-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.rel-card .rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--felt-700)}
.rel-card:hover .rel-more{color:var(--ember)}
.rel-card.is-current{background:rgba(44,107,85,.06);border-color:rgba(44,107,85,.28);box-shadow:none}
.rel-card.is-current:hover{transform:none}
.rel-card.is-current .rel-more{color:var(--ink-2);font-weight:500}
.back-home{display:inline-flex;align-items:center;gap:8px;margin-top:30px;font-size:14.5px;font-weight:600;color:var(--felt-700);
  border-bottom:1px solid rgba(22,70,56,.28);padding-bottom:3px;transition:color 240ms var(--ease),border-color 240ms var(--ease)}
.back-home:hover{color:var(--ember);border-color:var(--ember)}
@media(max-width:760px){.related-grid{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.site-footer{background:var(--felt-900);color:rgba(255,255,255,.86);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:56px}
.footer-logo{display:flex;align-items:baseline;gap:8px;color:#fff;margin-bottom:4px}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.7);font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.86);transition:color 220ms var(--ease)}
.footer-col a:hover{color:var(--ember)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.64);max-width:380px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.55)}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr;padding-bottom:40px}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.rel-card:hover,.index-row:hover .go{transform:none}
  .check-figure:hover img{transform:none}
}

/* roulang page: category2 */
:root{
  --felt-950:#0B1A15;
  --felt-900:#0E2A21;
  --felt-700:#164638;
  --felt-500:#2C6B55;
  --ember:#E2552F;
  --ember-700:#B93D1C;
  --brass:#C9A227;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:rgba(11,26,21,0.10);
  --ink-2:#5C6B63;
  --r-card:16px;
  --r-lg:18px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(11,26,21,0.06);
  --sh-2:0 10px 28px rgba(11,26,21,0.10);
  --sh-3:0 6px 20px rgba(11,26,21,0.12);
  --ease:cubic-bezier(0.22,1,0.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--felt-950);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(226,85,47,.20)}
:focus-visible{outline:3px solid rgba(226,85,47,.35);outline-offset:2px;border-radius:6px}
.serif{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- container ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(14,42,33,.35);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.is-stuck{
  background:rgba(14,42,33,.94);
  border-bottom-color:rgba(255,255,255,.12);
  box-shadow:var(--sh-3);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height 240ms var(--ease)}
.site-header.is-stuck .nav-inner{height:64px}
.logo{display:flex;align-items:baseline;gap:9px;color:#fff;flex:0 0 auto}
.logo__main{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;font-weight:700;font-size:20px;letter-spacing:.14em;line-height:1}
.logo__sub{font-size:12px;color:rgba(255,255,255,.74);border-left:1px solid rgba(255,255,255,.28);padding-left:9px;letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;padding:10px 14px;border-radius:8px;font-size:15px;
  color:rgba(255,255,255,.86);
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;
  background:var(--ember);transform:translateX(-50%);
  transition:width 200ms var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a:hover::after{width:60%}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{width:60%}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;color:#fff;border:1px solid rgba(255,255,255,.24);
  transition:background 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.44)}
.icon-btn:active{transform:translateY(1px)}
.burger{display:none}
.nav-drawer-cta{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  line-height:1.2;letter-spacing:.01em;border:1px solid transparent;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.btn--primary{background:var(--ember);color:#fff;box-shadow:0 1px 2px rgba(11,26,21,.12)}
.btn--primary:hover{background:var(--ember-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.38)}
.btn--ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.62);transform:translateY(-1px)}
.btn--outline{background:#fff;color:var(--felt-950);border-color:var(--line)}
.btn--outline:hover{background:rgba(44,107,85,.08);border-color:var(--felt-500);transform:translateY(-1px)}
.btn--sm{padding:9px 16px;font-size:14px}

/* ---------- page hero ---------- */
.page-hero{position:relative;background:var(--felt-900);color:#fff;overflow:hidden;padding:172px 0 96px}
.page-hero__bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.55}
.page-hero__mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,26,21,.88) 0%,rgba(11,26,21,.90) 55%,rgba(14,42,33,.97) 100%)}
.page-hero__inner{position:relative;z-index:2;max-width:800px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:26px}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"";width:14px;height:1px;background:rgba(255,255,255,.34)}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--ember)}
.breadcrumb [aria-current]{color:#fff}
.page-hero h1{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  font-weight:700;font-size:clamp(30px,4.4vw,50px);line-height:1.2;letter-spacing:-.01em;
}
.page-lede{margin-top:22px;font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.82);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.02em;
  background:rgba(255,255,255,.10);color:rgba(255,255,255,.88);
  border:1px solid rgba(255,255,255,.16);
}
.tag--brass{border-color:rgba(201,162,39,.55);color:#EAD79A;background:rgba(201,162,39,.10)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--paper)}
.section--white{background:#fff}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:.16em;color:var(--felt-500);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--brass);box-shadow:0 0 0 3px rgba(201,162,39,.16)}
.section-title{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;font-weight:700;font-size:clamp(24px,2.6vw,32px);line-height:1.3;letter-spacing:-.01em}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--ink-2);max-width:700px}
.link-more{font-size:14.5px;color:var(--felt-700);border-bottom:1px solid rgba(22,70,56,.28);padding-bottom:2px;transition:color 200ms var(--ease),border-color 200ms var(--ease)}
.link-more:hover{color:var(--ember);border-color:var(--ember)}

/* ---------- stat row ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.stat{padding:30px 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat__num{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;font-size:clamp(28px,3vw,38px);font-weight:700;line-height:1.1;color:var(--felt-900);font-variant-numeric:tabular-nums}
.stat__num small{font-size:14px;font-weight:600;color:var(--felt-500);margin-left:4px;letter-spacing:.02em}
.stat__label{margin-top:10px;font-size:13.5px;color:var(--ink-2);line-height:1.65}

/* ---------- grid cards ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.gcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform 300ms var(--ease),box-shadow 300ms var(--ease),border-color 300ms var(--ease);
}
.gcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,107,85,.35)}
.gcard__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(44,107,85,.08)}
.gcard__media img{width:100%;height:100%;object-fit:cover;transition:transform 500ms var(--ease)}
.gcard:hover .gcard__media img{transform:scale(1.04)}
.gcard__media::after{content:"";position:absolute;inset:auto 0 0 0;height:38%;background:linear-gradient(180deg,transparent,rgba(11,26,21,.45))}
.gcard__badge{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;color:#fff;background:rgba(14,42,33,.72);border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(4px);
}
.gcard__body{padding:22px 24px 26px}
.gcard__title{font-size:18px;font-weight:600;line-height:1.45;letter-spacing:-.005em}
.gcard__text{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- compare list ---------- */
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:8px 28px}
.compare__row{
  display:grid;grid-template-columns:minmax(150px,1fr) 2fr;gap:28px;
  padding:22px 0;border-top:1px solid var(--line);
  transition:background 240ms var(--ease);
}
.compare__row:first-child{border-top:0}
.compare__row:hover{background:linear-gradient(90deg,rgba(44,107,85,.06),transparent)}
.compare__key{font-size:15.5px;font-weight:600;color:var(--felt-900);display:flex;align-items:baseline;gap:10px}
.compare__key i{font-style:normal;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;font-size:13px;color:var(--brass);letter-spacing:.06em}
.compare__val{font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;text-align:left;font-size:18px;font-weight:600;line-height:1.55;
  color:var(--felt-950);transition:color 220ms var(--ease);
}
.faq__q:hover{color:var(--felt-700)}
.faq__icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--felt-500);
  font-size:16px;line-height:1;transition:transform 200ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);border-color:var(--ember);color:var(--ember)}
.faq__a{max-height:0;overflow:hidden;opacity:0;transition:max-height 320ms var(--ease),opacity 220ms var(--ease)}
.faq__item.is-open .faq__a{opacity:1}
.faq__a p{padding:0 4px 26px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:820px}

/* ---------- cta band ---------- */
.cta-band{background:var(--paper)}
.cta-band__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:32px 34px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.cta-band h3{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;font-size:21px;font-weight:700;line-height:1.4}
.cta-band p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- related ---------- */
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.related__card{
  display:flex;flex-direction:column;gap:12px;padding:28px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform 300ms var(--ease),box-shadow 300ms var(--ease),border-color 300ms var(--ease);
}
.related__card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(44,107,85,.35)}
.related__kicker{font-size:12.5px;letter-spacing:.14em;color:var(--felt-500);text-transform:uppercase}
.related__title{font-size:19px;font-weight:600;line-height:1.45}
.related__text{font-size:14px;line-height:1.75;color:var(--ink-2)}
.related__go{margin-top:auto;font-size:14px;font-weight:600;color:var(--ember);display:inline-flex;align-items:center;gap:6px}
.related__card:hover .related__go svg{transform:translateX(4px)}
.related__go svg{transition:transform 240ms var(--ease)}
.back-home{margin-top:36px;font-size:14.5px;color:var(--ink-2)}
.back-home a{color:var(--felt-700);border-bottom:1px solid rgba(22,70,56,.28);transition:color 200ms var(--ease),border-color 200ms var(--ease)}
.back-home a:hover{color:var(--ember);border-color:var(--ember)}

/* ---------- footer ---------- */
.site-footer{background:var(--felt-900);color:rgba(255,255,255,.86);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-col+.footer-col{border-left:1px solid rgba(255,255,255,.10);padding-left:32px}
.footer-logo{display:flex;align-items:baseline;gap:9px;margin-bottom:16px;color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:360px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.10em;color:rgba(255,255,255,.70);margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a,.footer-col ul li{font-size:14px;color:rgba(255,255,255,.86);line-height:1.7}
.footer-col ul a{transition:color 200ms var(--ease)}
.footer-col ul a:hover{color:var(--ember)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.55)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:1px solid var(--line)}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:nth-child(4){border-left:0;padding-left:0}
  .page-hero{padding:150px 0 80px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;z-index:79;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--felt-900);padding:14px 20px 22px;
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 18px 40px rgba(11,26,21,.35);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:14px 10px;font-size:16px;border-radius:10px}
  .nav-links a::after{bottom:8px}
  .nav-drawer-cta{display:inline-flex;margin-top:12px;justify-content:center}
  .nav-inner{height:64px}
  .site-header.is-stuck .nav-inner{height:60px}
  .burger{display:inline-flex}
  .nav-cta{display:none}
  .compare{padding:6px 22px}
  .compare__row{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .related{grid-template-columns:1fr}
  .cta-band__inner{padding:26px 24px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .grid-cards{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line);padding:24px}
  .stat:first-child{border-top:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:32px}
  .footer-col+.footer-col{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.10);margin-top:26px;padding-top:26px}
  .section-head{margin-bottom:32px}
  .faq__q{font-size:16.5px;padding:20px 2px;gap:16px}
  .page-hero{padding:132px 0 68px}
  .page-lede{font-size:15.5px}
}
@media (max-width:520px){
  .btn{padding:11px 16px;font-size:14.5px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .gcard__body{padding:18px 18px 22px}
  .compare{padding:4px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .gcard:hover{transform:none}
  .gcard:hover .gcard__media img{transform:none}
}