/* roulang page: index */
:root{
  --paper:#F7F4EF;
  --paper-2:#EFEAE2;
  --ink:#14120F;
  --muted:#6B6660;
  --brand:#E4571E;
  --brand-600:#C8460F;
  --accent:#1F5C4B;
  --line:rgba(20,18,15,.14);
  --line-strong:rgba(20,18,15,.24);
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 2px rgba(20,18,15,.05);
  --shadow-2:0 8px 24px rgba(20,18,15,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  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;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1200px){.container{padding:0 48px}}

/* 顶部信息条 */
.topbar{background:var(--ink);color:var(--paper);font-size:13px}
.topbar__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 24px;min-height:32px;padding-top:6px;padding-bottom:6px}
.topbar__note{color:rgba(247,244,239,.76);margin:0}
.topbar__links{display:flex;flex-wrap:wrap;gap:8px 18px}
.topbar__links a{color:rgba(247,244,239,.86);border-bottom:1px solid transparent;transition:color .22s var(--ease),border-color .22s var(--ease)}
.topbar__links a:hover{color:#fff;border-bottom-color:var(--brand)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--line)}
.site-header__inner{display:flex;align-items:center;gap:20px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800}
.logo__mark{display:grid;place-items:center;width:32px;height:32px;background:var(--ink);color:var(--paper);border-radius:2px;font-size:15px;font-weight:900;flex:0 0 auto}
.logo__text{font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.nav{display:none;margin:0 0 0 auto;padding:0;list-style:none;gap:30px;align-items:center}
.nav__link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink);transition:color .22s var(--ease)}
.nav__link::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--brand);transform:translateX(-50%);transition:width .28s var(--ease)}
.nav__link:hover{color:var(--brand)}
.nav__link:hover::after,.nav__link.is-active::after{width:100%}
.nav__link.is-active{color:var(--brand);font-weight:700}
.nav__cta{display:none}
.nav__toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;width:44px;height:44px;background:transparent;border:1px solid var(--line-strong);border-radius:2px;font-size:18px;color:var(--ink);cursor:pointer;transition:border-color .22s var(--ease),color .22s var(--ease)}
.nav__toggle:hover{border-color:var(--brand);color:var(--brand)}
@media (min-width:1024px){
  .nav{display:flex}
  .nav__cta{display:inline-flex;margin-left:4px}
  .nav__toggle{display:none}
}

/* 移动端抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:var(--paper);display:flex;flex-direction:column;padding:20px 22px 28px;overflow-y:auto}
.mobile-drawer[hidden]{display:none}
.mobile-drawer__top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.mobile-drawer__close{width:44px;height:44px;background:transparent;border:1px solid var(--line-strong);border-radius:2px;font-size:20px;line-height:1;color:var(--ink);cursor:pointer}
.mobile-drawer__close:hover{border-color:var(--brand);color:var(--brand)}
.mobile-drawer__nav{display:flex;flex-direction:column;margin-top:8px}
.mobile-drawer__nav a{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-drawer__nav a.is-active{color:var(--brand)}
.mobile-drawer__cta{margin-top:24px;width:100%}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;border:1px solid transparent;border-radius:2px;font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease)}
.btn--primary{background:var(--ink);color:var(--paper)}
.btn--primary:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:none}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{color:var(--brand);border-color:var(--brand)}
.link-cta{display:inline-block;font-size:14px;font-weight:600;color:var(--ink);padding-bottom:2px;border-bottom:1px solid var(--line-strong);transition:color .22s var(--ease),border-color .22s var(--ease)}
.link-cta:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* 首屏 */
.hero{padding:56px 0 72px;overflow:hidden}
.hero__grid{display:grid;gap:48px;align-items:center}
@media (min-width:1024px){
  .hero__grid{grid-template-columns:7fr 5fr;gap:56px}
}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);border:1px solid rgba(228,87,30,.34);border-radius:999px;padding:4px 12px}
.hero__title{margin:18px 0 0;font-size:clamp(30px,5.2vw,56px);font-weight:900;letter-spacing:-.02em;line-height:1.14;max-width:15em}
.hero__lead{margin:20px 0 0;font-size:clamp(17px,1.6vw,20px);color:var(--muted);line-height:1.7;max-width:34em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__meta{margin:18px 0 0;font-size:13px;color:var(--muted)}
.hero__media{position:relative;margin:0}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);border-radius:4px}
.hero__frame{position:absolute;right:18px;bottom:64px;width:36%;height:28%;border:1px solid var(--brand);border-radius:2px;pointer-events:none}
.hero__media figcaption{margin-top:10px;font-size:13px;color:var(--muted)}

/* 区块通用 */
.section{padding:80px 0}
.section--paper2{background:var(--paper-2)}
.section__head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:40px}
.section__head h2{font-size:clamp(24px,3.2vw,38px);font-weight:900;letter-spacing:-.02em}
.section__desc{margin-top:10px;color:var(--muted);font-size:15px;max-width:56ch}
@media (min-width:768px){.section{padding:96px 0}}

/* 指标看板 */
.metrics{background:var(--ink);color:var(--paper);padding:64px 0}
.metrics__head{display:grid;gap:12px;margin-bottom:44px}
.metrics__head h2{font-size:clamp(24px,3.2vw,36px);font-weight:900;letter-spacing:-.02em}
.metrics__head p{margin:0;font-size:15px;color:rgba(247,244,239,.66);max-width:52ch}
.metrics__head .link-cta{color:var(--paper);border-bottom-color:rgba(247,244,239,.4)}
.metrics__head .link-cta:hover{color:var(--brand);border-bottom-color:var(--brand)}
.metrics__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 24px}
.metric{border-top:1px solid rgba(247,244,239,.18);padding-top:20px}
.metric__value{display:flex;align-items:baseline;gap:6px}
.metric__num{font-size:clamp(34px,4.4vw,54px);font-weight:900;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.metric__unit{font-size:14px;color:rgba(247,244,239,.6)}
.metric__label{margin-top:10px;font-size:14px;color:rgba(247,244,239,.78)}
@media (min-width:900px){
  .metrics{padding:80px 0}
  .metrics__head{grid-template-columns:1fr auto;align-items:end;gap:24px}
  .metrics__grid{grid-template-columns:repeat(4,1fr);gap:32px}
}

/* 编号行式矩阵 */
.matrix{border-top:1px solid var(--line-strong);margin-top:8px}
.matrix__row{display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:center;padding:24px 8px;border-bottom:1px solid var(--line);transition:background .28s var(--ease)}
.matrix__row:hover{background:var(--paper-2)}
.matrix__body{transition:transform .28s var(--ease)}
.matrix__row:hover .matrix__body{transform:translateX(4px)}
.matrix__num{font-size:26px;font-weight:900;color:rgba(20,18,15,.22);font-variant-numeric:tabular-nums;line-height:1}
.matrix__body h3{font-size:20px;font-weight:700;margin-bottom:6px}
.matrix__body p{font-size:15px;color:var(--muted)}
.matrix__link{align-self:center;font-size:20px;line-height:1;color:var(--line-strong);transition:color .24s var(--ease),transform .24s var(--ease)}
.matrix__row:hover .matrix__link{color:var(--brand);transform:translateX(4px)}
.matrix__thumb{display:none;margin:0;aspect-ratio:16/10;overflow:hidden;border:1px solid var(--line);border-radius:3px}
.matrix__thumb img{width:100%;height:100%;object-fit:cover}
@media (min-width:760px){
  .matrix__row{padding:28px 12px;gap:24px}
  .matrix__row--media{grid-template-columns:44px 150px 1fr auto}
  .matrix__thumb{display:block}
}

/* 结果对比 */
.compare__grid{display:grid;gap:44px}
@media (min-width:900px){
  .compare__grid{grid-template-columns:1fr 1fr;gap:56px;align-items:start}
  .compare__col--better{margin-top:28px}
}
.compare__col h3{font-size:20px;font-weight:700;margin-bottom:8px}
.compare__col > p{font-size:14px;color:var(--muted);margin-bottom:20px}
.compare__item{border-top:1px solid var(--line-strong);padding:16px 0 18px}
.compare__item p{font-size:15px;margin-bottom:12px}
.compare__col--plain .compare__item p{color:var(--muted)}
.compare__bar{height:8px;background:rgba(20,18,15,.16)}
.compare__bar--good{background:var(--brand)}

/* 最新信息 */
.posts{display:grid;grid-template-columns:1fr;gap:26px}
@media (min-width:680px){.posts{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.posts{grid-template-columns:repeat(3,1fr);gap:28px}}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden;transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease)}
.post-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 22px}
.post-card__title{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__title a:hover{color:var(--brand)}
.post-card__excerpt{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__time{margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.pill{display:inline-flex;align-items:center;align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--accent);border:1px solid rgba(31,92,75,.32);border-radius:999px;padding:2px 10px}
.empty{border:1px dashed var(--line-strong);border-radius:4px;padding:40px 24px;text-align:center;color:var(--muted)}
.empty p{margin-bottom:14px;font-size:15px}

/* FAQ */
.faq{border-top:1px solid var(--line-strong)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{display:flex;align-items:flex-start;gap:18px;padding:22px 4px;cursor:pointer;list-style:none;font-size:18px;font-weight:700;transition:color .22s var(--ease)}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--brand)}
.faq__index{font-size:14px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;padding-top:5px;flex:0 0 auto}
.faq__q{flex:1}
.faq__mark{flex:0 0 auto;font-size:20px;font-weight:400;line-height:1.2;color:var(--muted)}
.faq__mark::before{content:"+"}
.faq__item[open] .faq__mark{color:var(--brand)}
.faq__item[open] .faq__mark::before{content:"−"}
.faq__answer{margin:0;padding:0 4px 24px 42px;font-size:15px;line-height:1.8;color:var(--muted)}

/* 表单 */
.contact__grid{display:grid;gap:40px}
@media (min-width:960px){.contact__grid{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.contact__intro h2{font-size:clamp(24px,3.2vw,36px);font-weight:900;letter-spacing:-.02em;margin-bottom:14px}
.contact__intro > p{color:var(--muted);font-size:15px}
.contact__list{margin-top:22px;display:grid;gap:12px}
.contact__list li{position:relative;padding-left:18px;font-size:15px}
.contact__list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--brand)}
.contact__meta{margin-top:24px;font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:26px 22px 28px}
@media (min-width:768px){.form-card{padding:32px}}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 12px;font-family:inherit;font-size:15px;line-height:1.6;color:var(--ink);
  background:var(--paper);border:1px solid var(--line);border-radius:2px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:112px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(228,87,30,.18);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(107,102,96,.7)}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7}
.checkbox input{margin-top:4px;accent-color:var(--brand)}
.form-status{margin-top:14px;font-size:13px;color:var(--muted);min-height:20px}

/* 页脚前 CTA 带 */
.cta-band{background:var(--brand);color:#fff}
.cta-band__inner{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding:26px 0}
.cta-band h2{font-size:clamp(18px,2.2vw,24px);font-weight:800}
.cta-band .btn{background:var(--paper);color:var(--ink);border-color:transparent}
.cta-band .btn:hover{background:var(--ink);color:var(--paper)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--paper);padding-top:64px}
.footer__grid{display:grid;gap:36px}
@media (min-width:900px){.footer__grid{grid-template-columns:2fr 1fr 1.2fr 1.2fr;gap:40px}}
.footer__brand .logo__mark{background:var(--paper);color:var(--ink)}
.footer__brand .logo__text{color:var(--paper)}
.footer__brand p{margin-top:16px;font-size:14px;color:rgba(247,244,239,.68);max-width:34ch}
.qr{width:96px;height:96px;margin-top:20px;border:1px solid rgba(247,244,239,.24);border-radius:2px;display:grid;place-items:center;text-align:center;font-size:11px;line-height:1.5;color:rgba(247,244,239,.5);padding:8px}
.footer__title{font-size:15px;font-weight:700;margin-bottom:14px}
.footer__list{display:grid;gap:10px;font-size:14px}
.footer__list a{color:rgba(247,244,239,.74);transition:color .22s var(--ease)}
.footer__list a:hover{color:var(--brand)}
.footer__text{font-size:14px;color:rgba(247,244,239,.7)}
.footer__bottom{margin-top:48px;border-top:1px solid rgba(247,244,239,.16);padding:20px 0;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:13px;color:rgba(247,244,239,.58)}
.footer__bottom a{color:rgba(247,244,239,.58)}
.footer__bottom a:hover{color:var(--brand)}

/* 入场动效 */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --paper:#F7F4EF;
  --paper-2:#EFEAE2;
  --ink:#14120F;
  --muted:#6B6660;
  --brand:#E4571E;
  --brand-600:#C8460F;
  --accent:#1F5C4B;
  --line:rgba(20,18,15,.14);
  --line-strong:rgba(20,18,15,.24);
  --radius:4px;
  --radius-sm:2px;
  --shadow-1:0 1px 2px rgba(20,18,15,.05);
  --shadow-2:0 8px 24px rgba(20,18,15,.08);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --sec:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--paper);color:var(--ink);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .24s ease,border-color .24s ease}
a:hover{color:var(--brand)}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 48px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:rgba(247,244,239,.8);font-size:13px;letter-spacing:.01em}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;padding-top:6px;padding-bottom:6px;flex-wrap:wrap}
.topbar__note{margin:0;color:rgba(247,244,239,.72)}
.topbar__links{display:flex;align-items:center;gap:22px}
.topbar__links a{color:rgba(247,244,239,.88);border-bottom:1px solid transparent;padding-bottom:1px}
.topbar__links a:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ============ 主导航 ============ */
.navwrap{position:sticky;top:0;z-index:60;background:rgba(247,244,239,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:28px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{width:32px;height:32px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;border-radius:2px;letter-spacing:0}
.logo__text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.mainnav{display:flex;align-items:center;gap:30px;margin-left:auto}
.mainnav a{position:relative;font-size:15px;font-weight:500;padding:8px 0;white-space:nowrap}
.mainnav a::after{content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--brand);transition:left .28s cubic-bezier(.2,.7,.3,1),right .28s cubic-bezier(.2,.7,.3,1)}
.mainnav a:hover::after,.mainnav a.is-active::after{left:0;right:0}
.mainnav a.is-active{color:var(--brand)}
.nav__cta{margin-left:6px}
.navtoggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:2px;margin-left:auto}
.navtoggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.navtoggle span::before,.navtoggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.navtoggle span::before{top:-6px}
.navtoggle span::after{top:6px}

/* ============ 抽屉菜单 ============ */
.drawer{position:fixed;inset:0;z-index:90;background:var(--paper);display:flex;flex-direction:column;padding:20px;transform:translateY(-100%);opacity:0;visibility:hidden;transition:transform .32s cubic-bezier(.2,.7,.3,1),opacity .28s ease,visibility .28s}
.drawer.is-open{transform:none;opacity:1;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px}
.drawer__close{width:44px;height:44px;font-size:26px;line-height:1;display:grid;place-items:center;border:1px solid var(--line);border-radius:2px}
.drawer__nav{display:flex;flex-direction:column;margin-top:12px}
.drawer__nav a{min-height:48px;display:flex;align-items:center;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer__nav a.is-active{color:var(--brand)}
.drawer__cta{margin-top:auto;width:100%}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;letter-spacing:.02em;border:1px solid transparent;transition:background-color .28s cubic-bezier(.2,.7,.3,1),color .28s,border-color .28s,transform .28s cubic-bezier(.2,.7,.3,1)}
.btn--primary{background:var(--ink);color:var(--paper)}
.btn--primary:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn--primary:active{transform:none;background:var(--brand-600)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--light{background:var(--paper);color:var(--ink)}
.btn--light:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.link-cta{display:inline-block;border-bottom:1px solid var(--line-strong);padding-bottom:2px;font-size:14px;font-weight:600}
.link-cta:hover{border-bottom-color:var(--brand);color:var(--brand)}

/* ============ 文章头部 ============ */
.article-hero{padding:clamp(32px,4.6vw,60px) 0 0;background:var(--paper)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb i{font-style:normal;color:var(--line-strong)}
.breadcrumb .crumb-current{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink)}
.article-head{max-width:880px}
.pill{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--accent);border:1px solid rgba(31,92,75,.28);background:rgba(31,92,75,.06);margin-bottom:18px}
.article-head h1{font-size:clamp(28px,3.6vw,42px);line-height:1.26}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;padding-bottom:26px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.article-meta b{font-weight:600;color:var(--ink)}

/* ============ 正文 ============ */
.article-body{padding:clamp(30px,4vw,50px) 0 0}
.article-wrap{max-width:760px;margin:0 auto}
.article-cover{margin:0 0 34px}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line)}
.article-cover figcaption{font-size:13px;color:var(--muted);margin-top:10px}
.prose{font-size:17px;line-height:1.85;color:#1c1a17}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{font-size:clamp(20px,2.4vw,26px);margin:2em 0 .75em;padding-left:14px;border-left:3px solid var(--brand);line-height:1.4}
.prose h3{font-size:19px;font-weight:700;margin:1.6em 0 .55em}
.prose h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em}
.prose ul{list-style:disc;margin:0 0 1.2em 1.3em;padding-left:.6em}
.prose ol{list-style:decimal;margin:0 0 1.2em 1.3em;padding-left:.6em}
.prose li{margin:.45em 0;padding-left:.15em}
.prose blockquote{margin:1.5em 0;padding:16px 22px;background:var(--paper-2);border-left:3px solid var(--brand);color:#3b3834;border-radius:0 var(--radius) var(--radius) 0}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--radius);margin:14px 0}
.prose figure{margin:1.5em 0}
.prose figcaption{font-size:13px;color:var(--muted);margin-top:9px;text-align:center}
.prose a{color:var(--brand-600);border-bottom:1px solid rgba(228,87,30,.42)}
.prose a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.prose strong{font-weight:700}
.prose table{font-size:15px;margin:1.5em 0;display:block;overflow-x:auto;border:1px solid var(--line)}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.prose th{background:var(--paper-2);font-weight:700;white-space:nowrap}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.prose code{background:var(--paper-2);padding:2px 6px;border-radius:2px;font-size:14.5px}

/* ============ 空态 ============ */
.empty-state{border:1px dashed var(--line-strong);background:var(--paper-2);border-radius:var(--radius);padding:clamp(32px,5vw,52px) 26px;text-align:center}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ============ 继续阅读 ============ */
.readnext{padding-top:var(--sec)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid var(--line-strong);margin-bottom:6px}
.sec-head h2{font-size:clamp(22px,2.6vw,30px)}
.sec-head p{font-size:14px;color:var(--muted);margin-top:8px}
.readnext__list li{border-bottom:1px solid var(--line)}
.readnext__list a{display:grid;grid-template-columns:58px minmax(0,1fr) minmax(0,1.35fr) 24px;gap:18px;align-items:center;padding:20px 6px;transition:background-color .28s cubic-bezier(.2,.7,.3,1),padding-left .28s cubic-bezier(.2,.7,.3,1)}
.readnext__list a:hover{background:var(--paper-2);padding-left:14px;color:var(--ink)}
.readnext__num{font-size:22px;font-weight:800;color:var(--line-strong);font-variant-numeric:tabular-nums}
.readnext__t{font-size:17px;font-weight:700}
.readnext__d{font-size:14px;color:var(--muted)}
.readnext__arrow{justify-self:end;font-weight:700;color:var(--brand)}
.readnext__foot{margin-top:26px}

/* ============ 核对要点卡片 ============ */
.points{padding-top:var(--sec)}
.points__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:34px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .28s cubic-bezier(.2,.7,.3,1),transform .28s cubic-bezier(.2,.7,.3,1),box-shadow .28s cubic-bezier(.2,.7,.3,1)}
.card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card__media{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px}
.card__body h3{font-size:18px}
.card__body p{font-size:14.5px;color:var(--muted);line-height:1.72}
.card__tag{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--accent)}

/* ============ CTA 带 ============ */
.cta-band{background:var(--brand);color:#fff;margin-top:var(--sec)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;flex-wrap:wrap}
.cta-band h2{font-size:clamp(18px,2.1vw,24px);color:#fff}
.cta-band p{font-size:14px;color:rgba(255,255,255,.86);margin-top:7px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--paper);padding:clamp(48px,6vw,78px) 0 26px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:44px}
.footer__brand .logo{margin-bottom:16px}
.footer__brand .logo__text{color:var(--paper)}
.footer__brand p{font-size:14.5px;line-height:1.8;color:rgba(247,244,239,.66);max-width:34ch}
.qr{margin-top:20px;width:100px;height:100px;border:1px solid rgba(247,244,239,.28);display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.45;color:rgba(247,244,239,.62);letter-spacing:.04em}
.footer__title{font-size:13px;letter-spacing:.1em;font-weight:700;color:rgba(247,244,239,.58);margin-bottom:16px}
.footer__list li{margin-bottom:11px;font-size:14.5px}
.footer__list a{color:rgba(247,244,239,.84)}
.footer__list a:hover{color:var(--brand)}
.footer__text{font-size:14px;line-height:1.75;color:rgba(247,244,239,.6)}
.footer__bottom{margin-top:46px;padding-top:18px;border-top:1px solid rgba(247,244,239,.16);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(247,244,239,.55)}

/* ============ 动效 ============ */
.reveal{transition:opacity .5s ease,transform .5s ease}
.reveal--hidden{opacity:0;transform:translateY(12px)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal,.reveal--hidden{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .mainnav{display:none}
  .nav__cta{display:none}
  .navtoggle{display:inline-flex}
  .points__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .readnext__list a{grid-template-columns:44px minmax(0,1fr) 22px;gap:14px}
  .readnext__d{display:none}
  .footer__grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .article-meta{gap:14px}
  .points__grid{grid-template-columns:minmax(0,1fr);gap:20px}
}
@media (max-width:640px){
  .topbar__inner{justify-content:center;text-align:center;gap:8px}
  .topbar__links{gap:16px;flex-wrap:wrap;justify-content:center}
  .nav__inner{min-height:62px;gap:14px}
  .logo__text{font-size:15.5px}
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .cta-band__inner .btn{width:100%}
  .sec-head{align-items:flex-start}
  .breadcrumb .crumb-current{white-space:normal;max-width:100%}
}

/* roulang page: category1 */
:root{
  --paper:#F7F4EF;
  --paper-2:#EFEAE2;
  --ink:#14120F;
  --muted:#6B6660;
  --brand:#E4571E;
  --brand-600:#C8460F;
  --accent:#1F5C4B;
  --line:rgba(20,18,15,.14);
  --line-strong:rgba(20,18,15,.24);
  --radius:4px;
  --radius-sm:2px;
  --container:1200px;
  --shadow-1:0 1px 2px rgba(20,18,15,.05);
  --shadow-2:0 8px 24px rgba(20,18,15,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
::selection{background:var(--brand);color:#F7F4EF;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}
@media(min-width:1024px){.container{padding:0 48px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--paper);font-size:13px;}
.topbar__inner{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;min-height:34px;padding-top:6px;padding-bottom:6px;}
.topbar__note{color:rgba(247,244,239,.66);letter-spacing:.01em;}
.topbar__links{display:flex;flex-wrap:wrap;gap:8px 20px;}
.topbar__links a{color:rgba(247,244,239,.8);padding:2px 0;border-bottom:1px solid transparent;transition:color .25s var(--ease),border-color .25s var(--ease);}
.topbar__links a:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,244,239,.94);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);}
.header__inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo__mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  background:var(--ink);color:var(--paper);border-radius:var(--radius-sm);
  font-weight:800;font-size:17px;letter-spacing:.02em;
}
.logo__text{font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.25;}
.logo__text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.06em;}
.nav{display:none;}
.nav__list{display:flex;align-items:center;gap:30px;}
.nav__link{position:relative;font-size:15px;padding:6px 0;color:#26231F;transition:color .25s var(--ease);}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;height:2px;width:0;background:var(--brand);
  transform:translateX(-50%);transition:width .3s var(--ease);
}
.nav__link:hover{color:var(--brand);}
.nav__link:hover::after{width:100%;}
.nav__link.is-active{color:var(--brand);font-weight:700;}
.nav__link.is-active::after{width:100%;}
.header__cta{display:none;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-weight:600;font-size:15px;letter-spacing:.02em;cursor:pointer;
  transition:transform .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn--primary{background:var(--ink);color:var(--paper);}
.btn--primary:hover{background:var(--brand);transform:translateY(-1px);}
.btn--primary:active{transform:none;}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn--brand{background:var(--paper);color:var(--brand);}
.btn--brand:hover{background:#fff;transform:translateY(-1px);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-cta{display:inline-block;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line-strong);transition:color .25s var(--ease),border-color .25s var(--ease);}
.link-cta:hover{color:var(--brand);border-bottom-color:var(--brand);}

.burger{
  width:44px;height:44px;display:grid;place-items:center;background:transparent;
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);display:none;
  flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer__close{width:44px;height:44px;border:1px solid var(--line-strong);background:transparent;border-radius:var(--radius-sm);font-size:20px;line-height:1;cursor:pointer;}
.drawer__nav{margin-top:6px;}
.drawer__nav a{
  display:flex;align-items:center;min-height:48px;font-size:17px;font-weight:600;
  border-bottom:1px solid var(--line);
}
.drawer__nav a.is-active{color:var(--brand);}
.drawer__foot{margin-top:auto;padding-top:24px;}

@media(min-width:1024px){
  .nav{display:block;}
  .header__cta{display:inline-flex;}
  .burger{display:none;}
}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumbs a{color:var(--muted);transition:color .25s var(--ease);}
.crumbs a:hover{color:var(--brand);}
.crumbs__sep{color:var(--line-strong);}
.crumbs__current{color:var(--ink);font-weight:600;}

/* ---------- 矮版 Hero ---------- */
.page-hero{background:var(--paper-2);border-bottom:1px solid var(--line);overflow:hidden;}
.page-hero__grid{display:grid;grid-template-columns:1fr;gap:28px;padding-top:44px;padding-bottom:44px;align-items:center;}
.page-hero__title{font-size:clamp(28px,4.6vw,46px);font-weight:900;letter-spacing:-.01em;line-height:1.16;}
.page-hero__lead{margin-top:14px;font-size:17px;color:#39352F;max-width:56ch;}
.page-hero__meta{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--muted);}
.page-hero__media{position:relative;}
.page-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius);
  border:1px solid var(--line);box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .4s var(--ease);
}
.page-hero__media img:hover{transform:scale(1.03);}
.page-hero__frame{
  position:absolute;right:-12px;bottom:-14px;width:96px;height:96px;
  border:2px solid var(--brand);border-radius:var(--radius-sm);z-index:-1;
}
@media(min-width:768px){
  .page-hero__grid{grid-template-columns:8fr 4fr;gap:36px;padding-top:56px;padding-bottom:56px;}
}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--accent);border:1px solid rgba(31,92,75,.34);border-radius:999px;padding:3px 12px;margin-bottom:16px;
  background:rgba(31,92,75,.06);
}
.badge--brand{color:var(--brand-600);border-color:rgba(228,87,30,.35);background:rgba(228,87,30,.07);}

/* ---------- 指标带 ---------- */
.metrics{background:var(--ink);color:var(--paper);}
.metrics__inner{padding-top:44px;padding-bottom:44px;}
.metrics__head{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:flex-end;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid rgba(247,244,239,.18);}
.metrics__head h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.01em;}
.metrics__head p{font-size:13px;color:rgba(247,244,239,.6);max-width:52ch;}
.metrics__head a{color:var(--brand);font-size:13px;font-weight:600;border-bottom:1px solid rgba(228,87,30,.5);}
.metrics__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 24px;margin-top:28px;}
.metric{border-top:1px solid rgba(247,244,239,.24);padding-top:14px;}
.metric__num{display:block;font-size:clamp(34px,4.4vw,56px);font-weight:900;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.metric__num small{font-size:.44em;font-weight:700;margin-left:4px;color:rgba(247,244,239,.75);}
.metric__label{display:block;margin-top:10px;font-size:13px;color:rgba(247,244,239,.66);}
@media(min-width:768px){.metrics__grid{grid-template-columns:repeat(4,1fr);gap:28px 32px;}}

/* ---------- 通用板块 ---------- */
.section{padding-top:56px;padding-bottom:56px;}
@media(min-width:768px){.section{padding-top:72px;padding-bottom:72px;}}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px;}}
.section--paper2{background:var(--paper-2);}
.section-head{max-width:64ch;}
.section-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:900;letter-spacing:-.01em;line-height:1.2;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px;}
.rule{border-top:1px solid var(--line);}

.layout-8-4{display:grid;grid-template-columns:1fr;gap:40px;}
@media(min-width:1024px){
  .layout-8-4{grid-template-columns:8fr 4fr;gap:56px;align-items:start;}
}

/* ---------- 正文 ---------- */
.prose h2{
  font-size:clamp(21px,2.6vw,27px);font-weight:800;letter-spacing:-.01em;
  padding-left:14px;border-left:3px solid var(--brand);line-height:1.35;
  margin-top:40px;
}
.prose h2:first-child{margin-top:0;}
.prose p{margin-top:14px;font-size:17px;line-height:1.85;color:#2A2723;}
.prose ul{margin-top:16px;display:grid;gap:10px;}
.prose ul li{position:relative;padding-left:20px;font-size:16px;color:#2A2723;line-height:1.8;}
.prose ul li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:2px;background:var(--brand);}
.figure{margin-top:26px;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
.figure img:hover{transform:scale(1.03);}
.figure figcaption{font-size:13px;color:var(--muted);padding:10px 14px;background:#fff;border-top:1px solid var(--line);}

.steps{margin-top:26px;display:grid;gap:14px;}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow-1);
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.step__no{
  font-size:22px;font-weight:900;line-height:1;color:transparent;
  -webkit-text-stroke:1.2px var(--brand);font-variant-numeric:tabular-nums;min-width:38px;
}
.step__title{font-size:17px;font-weight:800;letter-spacing:-.01em;}
.step__desc{margin-top:6px;font-size:14px;color:var(--muted);}

.check-list{margin-top:22px;border-top:1px solid var(--line);}
.check-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.check-list .idx{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;padding-top:3px;}

/* ---------- 侧栏 ---------- */
.side{display:grid;gap:20px;}
@media(min-width:1024px){
  .side{position:sticky;top:96px;}
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-1);
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.side-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.side-card h3{font-size:16px;font-weight:800;letter-spacing:-.01em;padding-bottom:12px;border-bottom:1px solid var(--line);}
.side-list{margin-top:12px;display:grid;gap:2px;}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;font-size:14px;border-bottom:1px solid var(--line);transition:color .25s var(--ease);}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--brand);}
.side-list .arrow{color:var(--brand);font-weight:700;}
.side-card--ink{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.side-card--ink h3{border-bottom-color:rgba(247,244,239,.2);}
.side-card--ink p{margin-top:12px;font-size:14px;color:rgba(247,244,239,.72);}
.side-card--ink .side-meta{margin-top:14px;font-size:13px;color:rgba(247,244,239,.58);font-variant-numeric:tabular-nums;}
.side-card--ink .btn{margin-top:18px;}

/* ---------- FAQ ---------- */
.faq{margin-top:32px;border-top:1px solid var(--line-strong);}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item summary{
  list-style:none;cursor:pointer;display:grid;grid-template-columns:52px 1fr auto;gap:10px;align-items:center;
  padding:20px 0;font-size:17px;font-weight:700;letter-spacing:-.01em;
  transition:color .25s var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary:hover{color:var(--brand);}
.faq__no{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.faq__sign{font-size:20px;font-weight:400;color:var(--muted);line-height:1;transition:color .25s var(--ease);}
.faq__item summary::after{content:"+";font-size:20px;color:var(--muted);transition:color .25s var(--ease);}
.faq__item[open] summary::after{content:"−";color:var(--brand);}
.faq__body{padding:0 0 22px 52px;font-size:15px;line-height:1.8;color:#39352F;max-width:78ch;}
.faq__item[open] .faq__sign{color:var(--brand);}

/* ---------- 品牌 CTA 带 ---------- */
.cta-band{background:var(--brand);color:var(--paper);}
.cta-band__inner{display:flex;flex-wrap:wrap;gap:18px 32px;align-items:center;justify-content:space-between;padding-top:26px;padding-bottom:26px;}
.cta-band h2{font-size:clamp(19px,2.4vw,24px);font-weight:800;letter-spacing:-.01em;line-height:1.3;}
.cta-band p{margin-top:6px;font-size:14px;color:rgba(247,244,239,.85);}

/* ---------- 交叉链接 ---------- */
.cross{display:grid;grid-template-columns:1fr;gap:18px;margin-top:28px;}
@media(min-width:640px){.cross{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.cross{grid-template-columns:repeat(3,1fr);}}
.cross-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-1);
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.cross-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.cross-card span.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);border:1px solid rgba(31,92,75,.3);border-radius:999px;padding:2px 10px;background:rgba(31,92,75,.06);}
.cross-card h3{margin-top:12px;font-size:17px;font-weight:800;letter-spacing:-.01em;}
.cross-card p{margin-top:8px;font-size:14px;color:var(--muted);}
.cross-card .more{margin-top:14px;display:inline-block;font-size:13px;font-weight:700;color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);margin-top:0;}
.footer__grid{display:grid;grid-template-columns:1fr;gap:34px;padding-top:56px;padding-bottom:40px;}
@media(min-width:640px){.footer__grid{grid-template-columns:1fr 1fr;gap:34px 40px;}}
@media(min-width:1024px){.footer__grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;padding-top:72px;padding-bottom:52px;}}
.site-footer .logo__mark{background:var(--paper);color:var(--ink);}
.site-footer .logo__text{color:var(--paper);}
.site-footer .logo__text small{color:rgba(247,244,239,.55);}
.footer__brand p{margin-top:16px;font-size:14px;color:rgba(247,244,239,.68);max-width:42ch;}
.qr{
  margin-top:20px;width:96px;height:96px;display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.4;color:rgba(247,244,239,.72);
  border:1px dashed rgba(247,244,239,.36);border-radius:var(--radius);
}
.footer__title{font-size:15px;font-weight:800;letter-spacing:.02em;padding-bottom:12px;border-bottom:1px solid rgba(247,244,239,.18);}
.footer__list{margin-top:14px;display:grid;gap:10px;}
.footer__list a{font-size:14px;color:rgba(247,244,239,.76);transition:color .25s var(--ease);}
.footer__list a:hover{color:var(--brand);}
.footer__text{font-size:13px;color:rgba(247,244,239,.6);line-height:1.7;}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:26px;border-top:1px solid rgba(247,244,239,.18);
  font-size:13px;color:rgba(247,244,239,.58);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
    --paper:#F7F4EF;
    --paper-2:#EFEAE2;
    --ink:#14120F;
    --muted:#6B6660;
    --brand:#E4571E;
    --brand-600:#C8460F;
    --accent:#1F5C4B;
    --line:rgba(20,18,15,.14);
    --line-strong:rgba(20,18,15,.24);
    --radius:4px;
    --radius-sm:2px;
    --shadow-1:0 1px 2px rgba(20,18,15,.05);
    --shadow-2:0 8px 24px rgba(20,18,15,.08);
    --ease:cubic-bezier(.2,.7,.3,1);
    --space-section:112px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
    font-size:16px;
    line-height:1.75;
    font-weight:400;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
  a:hover{color:var(--brand);}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{padding-left:32px;padding-right:32px;}
  }
  @media (min-width:1024px){
    .container{padding-left:48px;padding-right:48px;}
  }

  /* ---------- 顶部信息条 ---------- */
  .topbar{
    background:var(--ink);
    color:var(--paper);
    font-size:13px;
  }
  .topbar__inner{
    min-height:32px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:6px 0;
    flex-wrap:wrap;
  }
  .topbar__note{
    color:rgba(247,244,239,.72);
    letter-spacing:.01em;
  }
  .topbar__links{
    display:flex;
    align-items:center;
    gap:18px;
  }
  .topbar__links a{
    color:rgba(247,244,239,.78);
    border-bottom:1px solid transparent;
    padding-bottom:1px;
  }
  .topbar__links a:hover{
    color:#fff;
    border-bottom-color:var(--brand);
  }

  /* ---------- 主导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(247,244,239,.94);
    backdrop-filter:saturate(140%) blur(6px);
    border-bottom:1px solid var(--line);
  }
  .nav__inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    min-height:72px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:17px;
    letter-spacing:-.01em;
    color:var(--ink);
    white-space:nowrap;
  }
  .logo:hover{color:var(--ink);}
  .logo__mark{
    width:32px;
    height:32px;
    flex:0 0 32px;
    display:grid;
    place-items:center;
    background:var(--ink);
    color:var(--paper);
    border-radius:var(--radius-sm);
    font-size:16px;
    font-weight:800;
    line-height:1;
  }
  .logo__text{
    max-width:200px;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .nav__menu{
    display:none;
    align-items:center;
    gap:30px;
  }
  .nav__link{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:#2A2620;
    padding:6px 0;
  }
  .nav__link::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:0;
    width:0;
    height:2px;
    background:var(--brand);
    transform:translateX(-50%);
    transition:width .28s var(--ease);
  }
  .nav__link:hover{color:var(--brand);}
  .nav__link:hover::after,
  .nav__link.is-active::after{width:100%;}
  .nav__link.is-active{color:var(--ink);font-weight:700;}
  .nav__cta{
    display:none;
    align-items:center;
    gap:8px;
    background:var(--ink);
    color:var(--paper);
    border:1px solid var(--ink);
    border-radius:var(--radius-sm);
    padding:10px 20px;
    font-size:14px;
    font-weight:600;
    letter-spacing:.02em;
    transition:background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  }
  .nav__cta:hover{
    background:var(--brand);
    border-color:var(--brand);
    color:#fff;
    transform:translateY(-1px);
  }
  .nav__toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;
    height:44px;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-sm);
    background:transparent;
    color:var(--ink);
    cursor:pointer;
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .nav__toggle:hover{border-color:var(--brand);color:var(--brand);}
  .nav__toggle-bars{
    display:block;
    width:18px;
    height:12px;
    position:relative;
  }
  .nav__toggle-bars::before,
  .nav__toggle-bars::after{
    content:"";
    position:absolute;
    left:0;
    width:18px;
    height:2px;
    background:currentColor;
  }
  .nav__toggle-bars::before{top:0;}
  .nav__toggle-bars::after{bottom:0;}

  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    background:var(--paper);
    display:flex;
    flex-direction:column;
    padding:18px 20px 28px;
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  }
  .drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .drawer__head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:18px;
    border-bottom:1px solid var(--line);
  }
  .drawer__close{
    width:44px;height:44px;
    display:grid;place-items:center;
    background:transparent;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-sm);
    font-size:20px;
    line-height:1;
    color:var(--ink);
    cursor:pointer;
  }
  .drawer__close:hover{border-color:var(--brand);color:var(--brand);}
  .drawer__menu{margin-top:10px;flex:1;}
  .drawer__menu a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:48px;
    border-bottom:1px solid var(--line);
    font-size:16px;
    font-weight:600;
    color:var(--ink);
  }
  .drawer__menu a span{
    font-size:13px;
    font-weight:400;
    color:var(--muted);
  }
  .drawer__menu a.is-active{color:var(--brand);}
  .drawer__foot{padding-top:20px;border-top:1px solid var(--line);}
  .drawer__foot .btn{width:100%;justify-content:center;}

  @media (min-width:1024px){
    .nav__menu{display:flex;}
    .nav__cta{display:inline-flex;}
    .nav__toggle{display:none;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:var(--radius-sm);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    cursor:pointer;
    border:1px solid transparent;
    transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
  }
  .btn--primary{
    background:var(--ink);
    color:var(--paper);
    border-color:var(--ink);
  }
  .btn--primary:hover{
    background:var(--brand);
    border-color:var(--brand);
    color:#fff;
    transform:translateY(-1px);
  }
  .btn--primary:active{transform:translateY(0);}
  .btn--ghost{
    background:transparent;
    color:var(--ink);
    border-color:var(--line-strong);
  }
  .btn--ghost:hover{
    color:var(--brand);
    border-color:var(--brand);
    transform:translateY(-1px);
  }
  .btn--light{
    background:var(--paper);
    color:var(--ink);
    border-color:var(--paper);
  }
  .btn--light:hover{
    background:#fff;
    color:var(--brand-600);
    transform:translateY(-1px);
  }
  .link-underline{
    display:inline-block;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    border-bottom:1px solid var(--line-strong);
    padding-bottom:2px;
    transition:color .2s var(--ease),border-color .2s var(--ease);
  }
  .link-underline:hover{
    color:var(--brand);
    border-bottom-color:var(--brand);
    border-bottom-width:2px;
  }

  /* ---------- 通用标签 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:3px 10px;
    border-radius:999px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
    color:var(--accent);
    border:1px solid rgba(31,92,75,.28);
    background:rgba(31,92,75,.06);
  }
  .badge--muted{
    color:var(--muted);
    border-color:var(--line);
    background:transparent;
  }

  /* ---------- 区块节奏 ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){.section{padding:72px 0;}}
  @media (min-width:1024px){.section{padding:var(--space-section) 0;}}
  .section--tight{padding-top:36px;}
  @media (min-width:1024px){.section--tight{padding-top:56px;}}
  .section--paper2{background:var(--paper-2);}
  .section--ink{background:var(--ink);color:var(--paper);}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    margin-bottom:32px;
  }
  .eyebrow{
    font-size:13px;
    font-weight:700;
    letter-spacing:.14em;
    color:var(--brand);
    text-transform:uppercase;
  }
  .h2{
    font-size:clamp(24px,3.2vw,40px);
    font-weight:800;
    line-height:1.22;
    letter-spacing:-.01em;
  }
  .h3{
    font-size:clamp(19px,2vw,23px);
    font-weight:800;
    line-height:1.35;
    letter-spacing:-.01em;
  }
  .lead{
    font-size:16px;
    color:var(--muted);
    max-width:640px;
  }
  .dot-rule{
    height:1px;
    background:var(--line);
    border:0;
    margin:0;
  }

  /* ---------- 分类页头 ---------- */
  .cat-hero{
    padding:28px 0 40px;
    border-bottom:1px solid var(--line);
    background:
      linear-gradient(180deg,rgba(239,234,226,.7) 0%,rgba(247,244,239,0) 70%);
  }
  @media (min-width:1024px){
    .cat-hero{padding:36px 0 56px;}
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--muted);
    margin-bottom:22px;
    flex-wrap:wrap;
  }
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb span{color:rgba(20,18,15,.32);}
  .cat-hero__grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  @media (min-width:1024px){
    .cat-hero__grid{grid-template-columns:7fr 5fr;gap:48px;}
  }
  .cat-hero h1{
    font-size:clamp(30px,4.4vw,48px);
    font-weight:900;
    line-height:1.15;
    letter-spacing:-.015em;
    margin:14px 0 16px;
  }
  .cat-hero__desc{
    font-size:16px;
    color:#3B3630;
    max-width:620px;
  }
  .cat-hero__meta{
    display:flex;
    gap:22px;
    flex-wrap:wrap;
    margin-top:24px;
    padding-top:18px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--muted);
  }
  .cat-hero__meta b{
    display:block;
    font-size:18px;
    font-weight:800;
    color:var(--ink);
    font-variant-numeric:tabular-nums;
    letter-spacing:-.01em;
  }
  .figure-frame{
    position:relative;
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    background:var(--paper-2);
    aspect-ratio:4/3;
    box-shadow:var(--shadow-1);
  }
  .figure-frame img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s var(--ease);
  }
  .figure-frame:hover img{transform:scale(1.03);}
  .figure-frame::after{
    content:"";
    position:absolute;
    right:-12px;
    bottom:-12px;
    width:88px;
    height:88px;
    border:2px solid var(--brand);
    border-radius:var(--radius-sm);
    pointer-events:none;
  }

  /* ---------- 8/4 主体 ---------- */
  .layout{
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
  }
  @media (min-width:1024px){
    .layout{grid-template-columns:8fr 4fr;gap:56px;}
  }
  .article-block{
    padding-bottom:36px;
    margin-bottom:36px;
    border-bottom:1px solid var(--line);
  }
  .article-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
  .article-block h2{
    display:flex;
    align-items:flex-start;
    gap:12px;
    font-size:clamp(21px,2.4vw,27px);
    font-weight:800;
    line-height:1.32;
    letter-spacing:-.01em;
    margin-bottom:16px;
  }
  .article-block h2::before{
    content:"";
    flex:0 0 3px;
    width:3px;
    height:20px;
    margin-top:7px;
    background:var(--brand);
    border-radius:2px;
  }
  .article-block p{
    font-size:16.5px;
    line-height:1.85;
    color:#2C2823;
    margin-bottom:14px;
  }
  .article-block p:last-child{margin-bottom:0;}
  .point-list{
    margin-top:18px;
    border-top:1px solid var(--line);
  }
  .point-list li{
    display:flex;
    gap:14px;
    padding:14px 0;
    border-bottom:1px solid var(--line);
    font-size:15.5px;
    line-height:1.75;
  }
  .point-list li b{
    flex:0 0 86px;
    font-weight:700;
    color:var(--ink);
  }
  .point-list li span{color:#3B3630;}

  /* ---------- 侧栏 ---------- */
  .sidebar{display:flex;flex-direction:column;gap:24px;}
  @media (min-width:1024px){
    .sidebar{position:sticky;top:96px;align-self:start;}
  }
  .side-card{
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:#fff;
    padding:22px;
    box-shadow:var(--shadow-1);
    transition:border-color .28s var(--ease),box-shadow .28s var(--ease),transform .28s var(--ease);
  }
  .side-card:hover{
    border-color:var(--brand);
    box-shadow:var(--shadow-2);
    transform:translateY(-2px);
  }
  .side-card__title{
    font-size:14px;
    font-weight:800;
    letter-spacing:.04em;
    margin-bottom:14px;
    padding-bottom:12px;
    border-bottom:1px solid var(--line);
  }
  .side-list li{
    padding:10px 0;
    border-bottom:1px dashed var(--line);
    font-size:14.5px;
  }
  .side-list li:last-child{border-bottom:0;padding-bottom:0;}
  .side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;}
  .side-list a::after{
    content:"→";
    color:var(--muted);
    font-size:13px;
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .side-list a:hover::after{color:var(--brand);transform:translateX(3px);}
  .side-note{
    font-size:13.5px;
    color:var(--muted);
    line-height:1.8;
  }
  .side-contact{
    background:var(--paper-2);
  }
  .side-contact strong{
    display:block;
    font-size:20px;
    font-weight:800;
    letter-spacing:-.01em;
    margin-bottom:6px;
  }

  /* ---------- 数据条 ---------- */
  .stat-strip{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:0;
    border:1px solid rgba(247,244,239,.18);
    border-radius:var(--radius);
    overflow:hidden;
  }
  @media (min-width:768px){
    .stat-strip{grid-template-columns:repeat(4,1fr);}
  }
  .stat{
    padding:22px 20px;
    border-right:1px solid rgba(247,244,239,.14);
    border-bottom:1px solid rgba(247,244,239,.14);
  }
  .stat:nth-child(2n){border-right:0;}
  @media (min-width:768px){
    .stat{border-bottom:0;}
    .stat:nth-child(2n){border-right:1px solid rgba(247,244,239,.14);}
    .stat:last-child{border-right:0;}
  }
  .stat__num{
    font-size:clamp(30px,3.6vw,46px);
    font-weight:900;
    color:var(--brand);
    line-height:1;
    font-variant-numeric:tabular-nums;
    letter-spacing:-.02em;
  }
  .stat__num small{font-size:.5em;font-weight:700;margin-left:2px;}
  .stat__label{
    margin-top:12px;
    font-size:13px;
    color:rgba(247,244,239,.72);
    line-height:1.6;
  }

  /* ---------- 步骤 ---------- */
  .steps{
    display:grid;
    grid-template-columns:1fr;
    gap:0;
    border-top:1px solid var(--line);
  }
  @media (min-width:768px){
    .steps{grid-template-columns:repeat(2,1fr);}
    .step:nth-child(odd){border-right:1px solid var(--line);}
  }
  @media (min-width:1024px){
    .steps{grid-template-columns:repeat(4,1fr);}
    .step{border-right:1px solid var(--line);}
    .step:nth-child(odd){border-right:1px solid var(--line);}
    .step:last-child{border-right:0;}
  }
  .step{
    padding:26px 22px 30px;
    border-bottom:1px solid var(--line);
    transition:background .28s var(--ease);
  }
  .step:hover{background:var(--paper-2);}
  .step__no{
    font-size:30px;
    font-weight:900;
    color:transparent;
    -webkit-text-stroke:1.2px var(--line-strong);
    line-height:1;
    font-variant-numeric:tabular-nums;
    letter-spacing:-.02em;
  }
  .step h3{
    margin:14px 0 8px;
    font-size:17px;
    font-weight:800;
    line-height:1.4;
  }
  .step p{
    font-size:14.5px;
    color:var(--muted);
    line-height:1.8;
  }

  /* ---------- 问题对照 ---------- */
  .cmp{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
  }
  @media (min-width:1024px){
    .cmp{grid-template-columns:6fr 6fr;gap:48px;}
    .cmp__right{margin-top:24px;}
  }
  .cmp__panel{
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:#fff;
    padding:26px;
    box-shadow:var(--shadow-1);
  }
  .cmp__panel--brand{
    border-color:rgba(228,87,30,.34);
    background:var(--paper-2);
  }
  .cmp__title{
    font-size:14px;
    font-weight:800;
    letter-spacing:.04em;
    margin-bottom:18px;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .cmp__title::before{
    content:"";
    width:8px;height:8px;border-radius:2px;
    background:var(--line-strong);
  }
  .cmp__panel--brand .cmp__title::before{background:var(--brand);}
  .cmp__row{padding:14px 0;border-top:1px solid var(--line);}
  .cmp__row:first-of-type{border-top:0;}
  .cmp__row p{font-size:15px;line-height:1.75;color:#3B3630;}
  .bar{
    height:4px;
    border-radius:2px;
    margin-top:10px;
    background:rgba(20,18,15,.12);
  }
  .bar--short{width:30%;}
  .bar--long{width:92%;background:var(--brand);}
  .cmp__panel--brand .cmp__row p{color:var(--ink);font-weight:500;}

  /* ---------- FAQ ---------- */
  .faq{border-top:1px solid var(--line-strong);}
  .faq__item{border-bottom:1px solid var(--line);}
  .faq__q{
    display:flex;
    align-items:flex-start;
    gap:18px;
    padding:22px 0;
    cursor:pointer;
    list-style:none;
    font-size:17px;
    font-weight:700;
    line-height:1.6;
    transition:color .22s var(--ease);
  }
  .faq__q::-webkit-details-marker{display:none;}
  .faq__q:hover{color:var(--brand);}
  .faq__no{
    flex:0 0 34px;
    font-size:13px;
    font-weight:800;
    color:var(--brand);
    letter-spacing:.06em;
    font-variant-numeric:tabular-nums;
    padding-top:4px;
  }
  .faq__q-text{flex:1;}
  .faq__icon{
    flex:0 0 auto;
    font-size:20px;
    font-weight:400;
    line-height:1.2;
    color:var(--muted);
  }
  .faq__item[open] .faq__icon{color:var(--brand);}
  .faq__a{
    padding:0 0 24px 52px;
    font-size:15px;
    line-height:1.85;
    color:#3B3630;
  }
  @media (max-width:520px){
    .faq__a{padding-left:0;}
  }

  /* ---------- CTA 带 ---------- */
  .cta-band{
    background:var(--brand);
    color:#fff;
  }
  .cta-band__inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    padding:26px 0;
  }
  .cta-band__title{
    font-size:clamp(18px,2.2vw,24px);
    font-weight:800;
    letter-spacing:-.01em;
    line-height:1.4;
  }
  .cta-band__sub{
    font-size:13.5px;
    color:rgba(255,255,255,.82);
    margin-top:4px;
  }
  .cta-band .btn--light{border:1px solid rgba(255,255,255,.9);}

  /* ---------- 交叉链接 ---------- */
  .cross{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
  }
  @media (min-width:768px){
    .cross{grid-template-columns:repeat(2,1fr);}
  }
  .cross__card{
    display:block;
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:#fff;
    padding:26px;
    box-shadow:var(--shadow-1);
    transition:border-color .28s var(--ease),box-shadow .28s var(--ease),transform .28s var(--ease);
  }
  .cross__card:hover{
    border-color:var(--brand);
    box-shadow:var(--shadow-2);
    transform:translateY(-2px);
    color:inherit;
  }
  .cross__card h3{
    font-size:19px;
    font-weight:800;
    margin:12px 0 8px;
    letter-spacing:-.01em;
  }
  .cross__card p{
    font-size:14.5px;
    color:var(--muted);
    line-height:1.8;
  }
  .cross__more{
    display:inline-block;
    margin-top:16px;
    font-size:13.5px;
    font-weight:700;
    color:var(--brand);
  }

  /* ---------- 表单 ---------- */
  .contact-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
  }
  @media (min-width:1024px){
    .contact-grid{grid-template-columns:5fr 7fr;gap:56px;}
  }
  .form-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
    box-shadow:var(--shadow-1);
  }
  .field{margin-bottom:18px;}
  .field label{
    display:block;
    font-size:13px;
    font-weight:600;
    color:#3B3630;
    margin-bottom:7px;
  }
  .field input[type="text"],
  .field input[type="tel"],
  .field select,
  .field textarea{
    width:100%;
    padding:11px 13px;
    border:1px solid var(--line-strong);
    border-radius:var(--radius-sm);
    background:var(--paper);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  }
  .field textarea{min-height:112px;resize:vertical;}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--brand);
    background:#fff;
    box-shadow:0 0 0 2px rgba(228,87,30,.16);
  }
  .checkline{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:13px;
    color:var(--muted);
    line-height:1.7;
    margin:6px 0 20px;
  }
  .checkline input{margin-top:3px;}
  .form-note{
    margin-top:14px;
    font-size:13px;
    color:var(--muted);
    min-height:20px;
  }
  .contact-points li{
    display:flex;
    gap:12px;
    padding:12px 0;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:#3B3630;
  }
  .contact-points li::before{
    content:"—";
    color:var(--brand);
    font-weight:700;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink);
    color:var(--paper);
    padding:64px 0 24px;
    margin-top:0;
  }
  .footer__grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
    padding-bottom:44px;
    border-bottom:1px solid rgba(247,244,239,.16);
  }
  @media (min-width:768px){
    .footer__grid{grid-template-columns:repeat(2,1fr);}
  }
  @media (min-width:1024px){
    .footer__grid{grid-template-columns:5fr 3fr 3fr 3fr;gap:40px;}
  }
  .site-footer .logo{color:var(--paper);}
  .site-footer .logo__mark{background:var(--brand);color:#fff;}
  .site-footer .logo:hover{color:var(--paper);}
  .footer__brand p{
    margin-top:16px;
    font-size:14px;
    line-height:1.85;
    color:rgba(247,244,239,.7);
    max-width:330px;
  }
  .qr{
    margin-top:22px;
    width:82px;
    height:82px;
    border:1px dashed rgba(247,244,239,.34);
    border-radius:var(--radius);
    display:grid;
    place-items:center;
    text-align:center;
    font-size:11px;
    line-height:1.5;
    color:rgba(247,244,239,.6);
    letter-spacing:.02em;
  }
  .footer__title{
    font-size:14px;
    font-weight:800;
    letter-spacing:.06em;
    margin-bottom:16px;
    color:var(--paper);
  }
  .footer__list li{padding:6px 0;}
  .footer__list a{
    font-size:14px;
    color:rgba(247,244,239,.74);
    border-bottom:1px solid transparent;
    padding-bottom:1px;
  }
  .footer__list a:hover{
    color:#fff;
    border-bottom-color:var(--brand);
  }
  .footer__text{
    font-size:13.5px;
    line-height:1.8;
    color:rgba(247,244,239,.62);
  }
  .footer__bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    padding-top:22px;
    font-size:13px;
    color:rgba(247,244,239,.56);
  }

  /* ---------- 入场动效 ---------- */
  .reveal{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .5s var(--ease),transform .5s var(--ease);
  }
  .reveal.is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
  }