/* roulang page: index */
:root{
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --tea-deep:#2F4A3C;
  --tea-dark:#24382E;
  --tea-mid:#4E6B58;
  --amber:#C4823A;
  --amber-deep:#A96C2B;
  --amber-soft:#F0E0C6;
  --seal:#A8402F;
  --paper:#F7F3EA;
  --paper-2:#FFFDF9;
  --cream:#F2EEE4;
  --line:#E4DDCE;
  --line-strong:#D5CAB4;
  --radius-s:6px;
  --radius-m:12px;
  --radius-p:999px;
  --shadow-1:0 1px 2px rgba(28,26,23,.06);
  --shadow-2:0 8px 24px rgba(28,26,23,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,monospace;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:16px;line-height:1.85;overflow-x:hidden}
img{max-width:100%;display:block;border-radius:var(--radius-m)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;line-height:1.16;letter-spacing:-.01em}
p{margin:0 0 20px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;scroll-margin-top:136px}
.section--tight{padding:72px 0}
.section__head{max-width:760px;margin-bottom:48px}
.section__title{font-size:clamp(26px,3.4vw,38px);margin-bottom:14px}
.section__desc{color:var(--ink-2);font-size:16px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--tea-mid);margin-bottom:14px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 30px;border-radius:var(--radius-p);font-size:15px;font-weight:600;transition:background .24s ease,transform .2s ease,border-color .24s ease,color .24s ease;white-space:nowrap}
.btn--primary{background:var(--amber);color:#FBF7EF}
.btn--primary:hover{background:var(--amber-deep);transform:translateY(1px)}
.btn--ghost{border:1px solid var(--ink);color:var(--ink)}
.btn--ghost:hover{background:rgba(28,26,23,.08)}
.btn--text{min-height:44px;padding:0;color:var(--tea-deep);background-image:linear-gradient(var(--tea-deep),var(--tea-deep));background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .24s ease}
.btn--text:hover{background-size:100% 1px}
.btn--sm{min-height:44px;padding:0 22px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-p);background:var(--amber-soft);color:var(--ink);font-size:12px;letter-spacing:.04em}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;height:var(--header-h);background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .24s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header__inner{height:100%;display:flex;align-items:center;gap:24px;justify-content:space-between}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-size:22px;font-weight:600;letter-spacing:-.01em}
.logo__mark{color:var(--tea-deep);font-family:var(--font-mono);font-size:20px;letter-spacing:0}
.logo__name{font-size:17px;color:var(--ink)}
.nav{flex:1;min-width:0}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;font-size:15px;color:var(--ink-2);transition:color .2s ease}
.nav__link:hover{color:var(--ink)}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;background:var(--amber)}
.nav__actions{display:flex;align-items:center;gap:12px}

/* Mega 面板 */
.mega{position:relative}
.mega__trigger{display:inline-flex;align-items:center;gap:6px;height:44px;padding:0 16px;border:1px solid var(--line-strong);border-radius:var(--radius-p);font-size:14px;color:var(--ink-2);transition:border-color .2s ease,color .2s ease}
.mega__trigger:hover{border-color:var(--tea-mid);color:var(--ink)}
.mega__panel{position:absolute;right:0;top:calc(100% + 10px);width:780px;max-width:calc(100vw - 48px);background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-2);padding:26px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease}
.mega:hover .mega__panel,.mega:focus-within .mega__panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{font-size:13px;letter-spacing:.08em;color:var(--tea-mid);margin-bottom:14px}
.mega__link{display:block;padding:9px 0;font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease}
.mega__link:hover{color:var(--ink);padding-left:4px}
.mega__news{display:flex;flex-direction:column;gap:12px}
.mega__news a{font-size:14px;color:var(--ink-2)}
.mega__news a:hover{color:var(--tea-deep)}
.mega__news time{display:block;font-size:12px;color:var(--tea-mid);font-family:var(--font-mono)}
.mega__card{display:block;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;background:var(--paper)}
.mega__card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.mega__card span{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;font-size:14px;font-weight:600}
.mega__card:hover{box-shadow:var(--shadow-2)}
.mobile-nav{display:none;position:relative}
.mobile-nav__btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--radius-s);list-style:none}
.mobile-nav__btn::-webkit-details-marker{display:none}
.mobile-nav__panel{position:absolute;right:0;top:calc(100% + 10px);width:min(280px,calc(100vw - 40px));background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-2);padding:16px}
.mobile-nav__panel a{display:block;padding:11px 4px;font-size:15px;border-bottom:1px solid var(--line)}
.mobile-nav__panel a:last-child{border-bottom:0}

/* 锚点条 */
.anchor-bar{position:sticky;top:var(--header-h);z-index:60;background:var(--paper);border-bottom:1px solid var(--line)}
.anchor-bar__inner{display:flex;gap:8px;overflow-x:auto;padding:10px 24px;max-width:1200px;margin:0 auto;scrollbar-width:none}
.anchor-bar__inner::-webkit-scrollbar{display:none}
.anchor-bar__link{position:relative;padding:8px 14px;font-size:14px;color:var(--ink-2);white-space:nowrap;border-radius:var(--radius-p);transition:color .2s ease,background .2s ease}
.anchor-bar__link:hover{color:var(--ink);background:rgba(196,130,58,.10)}
.anchor-bar__link.is-current{color:var(--ink);font-weight:600}
.anchor-bar__link.is-current::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--amber)}

/* Hero */
.hero{position:relative;padding:56px 0 72px;background:
  radial-gradient(circle at 12% 18%, rgba(196,130,58,.10), transparent 45%),
  linear-gradient(var(--paper),var(--paper))}
.hero__grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
.hero__title{font-size:clamp(34px,5vw,56px);margin:14px 0 18px}
.hero__sub{font-size:17px;color:var(--ink-2);max-width:30em;margin-bottom:30px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:26px;border-top:1px solid var(--line)}
.stat__num{display:block;font-family:var(--font-mono);font-size:28px;line-height:1.2;color:var(--tea-deep)}
.stat__label{font-size:13px;color:var(--ink-2)}
.hero__media{position:relative;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1)}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,243,234,.10),rgba(247,243,234,.42))}
.hero__seal{position:absolute;right:20px;bottom:20px;width:72px;height:72px;border:1px solid rgba(168,64,47,.55);border-radius:var(--radius-s);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:18px;color:var(--seal);background:rgba(247,243,234,.86)}

/* 卖点区 */
.points__grid{display:grid;grid-template-columns:7fr 5fr;gap:56px}
.point-main{border-top:2px solid var(--seal);padding-top:24px}
.point-main__num{font-family:var(--font-mono);font-size:14px;letter-spacing:.1em;color:var(--seal)}
.point-main__title{font-size:clamp(22px,2.4vw,28px);margin:12px 0 16px}
.point-main__text{color:var(--ink-2)}
.point-row{display:flex;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.point-row__num{font-family:var(--font-mono);font-size:14px;color:var(--tea-mid);padding-top:3px}
.point-row__title{font-size:17px;font-family:var(--font-sans);font-weight:600;margin-bottom:6px}
.point-row__desc{font-size:14px;color:var(--ink-2);line-height:1.8}

/* 演示区 */
.demo__row{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.demo__row + .demo__row{margin-top:80px}
.demo__row--reverse{grid-template-columns:5fr 7fr}
.demo__row--reverse .demo__media{order:2}
.demo__row--reverse .demo__body{order:1}
.demo__media{border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1)}
.demo__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.demo__body h3{font-family:var(--font-serif);font-size:clamp(22px,2.4vw,28px);margin-bottom:16px}
.step{display:flex;gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.step:first-of-type{border-top:0}
.step__num{font-family:var(--font-mono);font-size:13px;color:var(--amber);padding-top:4px}
.step p{font-size:15px;color:var(--ink-2);margin:0}

/* 证据区 */
.proof{background:var(--tea-deep);color:var(--cream)}
.proof .eyebrow{color:#C6BCA6}
.proof__grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:start}
.proof__quote{font-family:var(--font-serif);font-size:clamp(21px,2.5vw,29px);line-height:1.62;border-left:3px solid var(--amber);padding-left:26px;margin:0 0 22px}
.proof__author{font-size:14px;color:#C6BCA6}
.timeline__item{display:grid;grid-template-columns:52px 1fr;gap:20px;padding:20px 0;border-top:1px solid rgba(242,238,228,.16)}
.timeline__num{font-family:var(--font-mono);font-size:13px;color:var(--amber);padding-top:3px}
.timeline__item h3{font-family:var(--font-sans);font-size:16px;font-weight:600;margin-bottom:6px;color:var(--cream)}
.timeline__item p{font-size:14px;color:#CFC7B4;margin:0}

/* 价格 */
.price__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:34px 30px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.plan--featured{border:1px solid var(--amber);position:relative;padding-top:44px}
.plan__flag{position:absolute;top:16px;left:30px;background:var(--amber);color:#FBF7EF;font-size:12px;padding:4px 12px;border-radius:var(--radius-p)}
.plan__name{font-size:21px;margin-bottom:6px}
.plan__for{font-size:13px;color:var(--tea-mid);margin-bottom:20px}
.plan__rule{height:1px;background:var(--line);margin:20px 0}
.plan__list li{position:relative;padding:8px 0 8px 24px;font-size:14px;color:var(--ink-2)}
.plan__list li::before{content:"✓";position:absolute;left:0;color:var(--tea-mid);font-size:13px}
.plan__cta{margin-top:24px;width:100%}

/* FAQ */
.faq-list{border-bottom:1px solid var(--line)}
.faq-item{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:6px 40px;border-top:1px solid var(--line);padding:20px 0}
.faq-item summary{grid-column:1/-1;position:relative;padding-right:34px;font-size:17px;font-weight:600;line-height:1.6;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:0;font-size:20px;line-height:1.4;color:var(--amber);font-weight:400}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{grid-column:1}
.faq-item__answer{grid-column:2;align-self:start;font-size:15px;color:var(--ink-2)}

/* 资讯 */
.news__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.news-list{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.news-card__media{overflow:hidden}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.news-card--lead .news-card__media img{aspect-ratio:4/3}
.news-card:hover .news-card__media img{transform:scale(1.04)}
.news-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__title{font-family:var(--font-sans);font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card--lead .news-card__title{font-size:20px}
.news-card__desc{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--tea-mid)}
.news-card__meta time{font-family:var(--font-mono)}
.empty-state{grid-column:1/-1;text-align:center;padding:72px 24px;border:1px dashed var(--line-strong);border-radius:var(--radius-m);background:var(--paper-2)}
.empty-state p{color:var(--ink-2);margin-bottom:18px}

/* 底部 CTA */
.cta-band{background:var(--tea-dark);color:var(--cream);padding:72px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band__title{font-size:clamp(24px,2.8vw,32px);margin-bottom:10px}
.cta-band__desc{font-size:15px;color:#CFC7B4;margin:0}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn--ghost{border-color:rgba(242,238,228,.6);color:var(--cream)}
.cta-band .btn--ghost:hover{background:rgba(242,238,228,.12)}

/* 页脚 */
.site-footer{background:var(--tea-deep);color:var(--cream)}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:72px 0 40px}
.footer__brand{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-size:21px;margin-bottom:14px}
.footer__brand .logo__mark{color:var(--amber)}
.footer__brand .logo__name{color:var(--cream);font-size:16px}
.footer__text{font-size:14px;color:#CFC7B4;margin:0}
.footer__title{font-size:13px;letter-spacing:.08em;color:#C6BCA6;margin-bottom:16px}
.footer__list li{margin-bottom:10px}
.footer__list a{font-size:14px;color:#EDE8DC;background-image:linear-gradient(var(--amber),var(--amber));background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .24s ease}
.footer__list a:hover{background-size:100% 1px}
.footer__bottom{border-top:1px solid rgba(242,238,228,.16);padding:22px 0 34px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#C6BCA6}

/* 浮动 CTA 与返回顶部 */
.float-cta{position:fixed;right:24px;bottom:96px;z-index:80;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top{position:fixed;right:24px;bottom:32px;z-index:80;width:48px;height:48px;border-radius:50%;border:1px solid var(--line-strong);background:var(--paper-2);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease,border-color .2s ease}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--amber)}

/* 平板 */
@media (max-width:1199px){
  .news-list{grid-template-columns:1fr 1fr}
  .news-card--lead{grid-column:span 2}
  .news-card--lead .news-card__media img{aspect-ratio:16/9}
}
@media (max-width:991px){
  .nav{overflow-x:auto;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .nav__list{white-space:nowrap}
  .mega{display:none}
  .mobile-nav{display:block}
  .header__inner{gap:12px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__media img{aspect-ratio:16/10}
  .points__grid{grid-template-columns:1fr;gap:36px}
  .demo__row,.demo__row--reverse{grid-template-columns:1fr;gap:28px}
  .demo__row--reverse .demo__media{order:1}
  .demo__row--reverse .demo__body{order:2}
  .proof__grid{grid-template-columns:1fr;gap:40px}
  .price__grid{grid-template-columns:1fr;gap:20px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
  .section{padding:80px 0}
}
/* 手机 */
@media (max-width:767px){
  :root{--header-h:60px}
  .section{padding:56px 0}
  .hero{padding:32px 0 48px}
  .hero__stats{grid-template-columns:1fr;gap:14px}
  .hero__actions .btn{flex:1}
  .section__head{margin-bottom:32px}
  .news-list{grid-template-columns:1fr}
  .news-card--lead{grid-column:span 1}
  .faq-item{grid-template-columns:1fr;gap:10px}
  .faq-item summary,.faq-item[open] summary{grid-column:1/-1}
  .faq-item__answer{grid-column:1;font-size:15px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:56px 0}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1}
  .float-cta{left:0;right:0;bottom:0;transform:translateY(100%)}
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta .btn{width:100%;min-height:48px;border-radius:0;padding-bottom:env(safe-area-inset-bottom)}
  .to-top{right:12px;bottom:64px;width:42px;height:42px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category1 */
:root{
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --tea-deep:#2F4A3C;
  --tea-mid:#4E6B58;
  --amber:#C4823A;
  --amber-dark:#A96D2C;
  --amber-soft:#F0E0C6;
  --seal:#A8402F;
  --paper:#F7F3EA;
  --paper-2:#FFFDF9;
  --line:#E4DDCE;
  --radius-s:6px;
  --radius-m:12px;
  --radius-pill:999px;
  --shadow-s:0 1px 2px rgba(28,26,23,.06);
  --shadow-h:0 8px 24px rgba(28,26,23,.10);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:112px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2{font-family:var(--font-serif);font-weight:600;letter-spacing:-.01em;line-height:1.16;}
h1{font-size:clamp(32px,4.4vw,50px);}
h2{font-size:clamp(25px,3.2vw,36px);}
h3{font-size:21px;font-weight:600;line-height:1.45;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
::selection{background:var(--amber-soft);color:var(--ink);}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper2{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.anchor-offset{scroll-margin-top:calc(var(--header-h) + 64px);}

/* ============ 头部与导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(6px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-s);}
.header__inner{
  height:var(--header-h);
  display:flex;align-items:center;gap:var(--sp-4);
}
.logo{display:inline-flex;align-items:baseline;gap:6px;flex:0 0 auto;}
.logo__mark{
  font-family:var(--font-mono);
  font-size:22px;font-weight:700;letter-spacing:.02em;
  color:var(--tea-deep);
}
.logo__name{
  font-family:var(--font-serif);
  font-size:19px;font-weight:600;color:var(--ink);
}
.nav{flex:1 1 auto;min-width:0;}
.nav__list{display:flex;align-items:center;gap:4px;}
.nav__list>li{position:relative;}
.nav__link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--ink-2);border-radius:var(--radius-s);
  background-image:linear-gradient(var(--amber),var(--amber));
  background-repeat:no-repeat;background-size:0 2px;background-position:left bottom 6px;
  transition:background-size .24s ease,color .2s ease;
  white-space:nowrap;
}
.nav__link:hover{color:var(--ink);background-size:calc(100% - 28px) 2px;}
.nav__link.is-active{color:var(--ink);font-weight:600;background-size:calc(100% - 28px) 2px;}
.header__side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  height:44px;padding:0 14px;background:transparent;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:15px;color:var(--ink-2);cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.mega-trigger:hover{border-color:var(--ink-2);background:rgba(28,26,23,.04);}
.mega-trigger svg{width:12px;height:12px;}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 10px);
  width:720px;padding:26px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-h);
  display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col__title{
  font-size:13px;letter-spacing:.08em;color:var(--ink-2);
  text-transform:uppercase;margin-bottom:12px;
}
.mega-col__list li+li{margin-top:6px;}
.mega-col__list a{
  display:block;padding:6px 0;font-size:15px;color:var(--ink);
  border-bottom:1px solid transparent;
  transition:color .2s ease;
}
.mega-col__list a:hover{color:var(--amber-dark);}
.mega-col__list time{display:block;font-size:12px;color:var(--ink-2);font-family:var(--font-mono);}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;background:var(--paper);transition:box-shadow .3s ease,transform .3s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);}
.mega-card img{width:100%;height:110px;object-fit:cover;}
.mega-card__body{padding:12px 14px 14px;}
.mega-card__body p{font-size:14px;line-height:1.6;color:var(--ink);}
.mega-card__arrow{display:block;margin-top:8px;font-size:13px;color:var(--amber-dark);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .12s ease,border-color .2s ease;
}
.btn--sm{height:44px;padding:0 20px;font-size:15px;}
.btn--primary{background:var(--amber);color:var(--paper-2);}
.btn--primary:hover{background:var(--amber-dark);transform:translateY(1px);}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn--ghost:hover{background:rgba(28,26,23,.08);}
.btn--light{background:var(--paper-2);color:var(--tea-deep);}
.btn--light:hover{background:#f1ece0;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--tea-deep);
  background-image:linear-gradient(var(--tea-deep),var(--tea-deep));
  background-repeat:no-repeat;background-size:100% 1px;background-position:left bottom 2px;
  transition:background-size .24s ease,color .2s ease;
}
.text-link:hover{color:var(--amber-dark);background-image:linear-gradient(var(--amber-dark),var(--amber-dark));}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);background:var(--amber-soft);color:var(--ink);
  font-size:13px;letter-spacing:.02em;
}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;
  color:var(--tea-mid);text-transform:uppercase;
}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:6px;align-items:center;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--amber-dark);}
.breadcrumb span[aria-current]{color:var(--ink);}

/* ============ 窄幅 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center 38%;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,243,234,.95) 26%,rgba(247,243,234,.72) 62%,rgba(47,74,60,.42) 100%);
}
.cat-hero__inner{position:relative;padding:64px 0 56px;min-height:300px;display:flex;flex-direction:column;justify-content:center;gap:18px;}
.cat-hero h1{max-width:760px;}
.cat-hero__lead{max-width:620px;font-size:17px;color:var(--ink-2);}
.cat-hero__lead strong{color:var(--ink);font-weight:600;}
.cat-hero__facts{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-2);}
.cat-hero__facts span{display:inline-flex;align-items:center;gap:8px;}
.cat-hero__facts span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--seal);display:inline-block;
}

/* ============ 目录 ============ */
.catalog{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:26px 28px;box-shadow:var(--shadow-s);
}
.catalog__head{display:flex;flex-wrap:wrap;gap:10px;align-items:baseline;justify-content:space-between;margin-bottom:16px;}
.catalog__head p{font-size:14px;color:var(--ink-2);}
.catalog__list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px 24px;}
.catalog__list a{
  display:flex;align-items:center;gap:10px;padding:10px 0;
  font-size:15px;color:var(--ink);border-bottom:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease;
}
.catalog__list a:hover{color:var(--amber-dark);border-color:var(--amber);}
.catalog__num{font-family:var(--font-mono);font-size:13px;color:var(--seal);}

/* ============ 图文条目 ============ */
.entry-list{border-top:1px solid var(--line);margin-top:var(--sp-5);}
.entry{
  display:grid;grid-template-columns:360px 1fr;gap:var(--sp-4);
  padding:var(--sp-5) 0;border-bottom:1px solid var(--line);
}
.entry__media{
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;background:var(--paper-2);
}
.entry__media img{
  width:100%;height:240px;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.7,.3,1);
}
.entry:hover .entry__media img{transform:scale(1.04);}
.entry__body{display:flex;flex-direction:column;gap:14px;}
.entry__head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.entry__idx{font-family:var(--font-mono);font-size:14px;color:var(--seal);}
.entry p{color:var(--ink-2);font-size:16px;}
.entry__points{display:grid;gap:6px;font-size:14px;color:var(--ink-2);}
.entry__points li{display:flex;gap:10px;}
.entry__points li::before{content:"—";color:var(--tea-mid);}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3);margin-top:var(--sp-5);}
.step{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:26px 24px;box-shadow:var(--shadow-s);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:#d3c9b4;}
.step__num{font-family:var(--font-mono);font-size:14px;color:var(--seal);}
.step h3{margin:10px 0 8px;font-size:19px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ 深色引用区 ============ */
.proof{
  background:var(--tea-deep);color:var(--paper-2);
  padding:96px 0;
}
.proof__grid{display:grid;grid-template-columns:1.25fr 1fr;gap:var(--sp-6);align-items:start;}
.proof blockquote{
  margin:0;font-family:var(--font-serif);
  font-size:clamp(22px,2.6vw,30px);line-height:1.5;
  border-left:3px solid var(--amber);padding-left:22px;
}
.proof__meta{margin-top:20px;font-size:14px;color:rgba(247,243,234,.76);}
.proof ol{counter-reset:pf;display:grid;gap:18px;}
.proof ol li{
  display:grid;grid-template-columns:34px 1fr;gap:12px;
  padding-bottom:18px;border-bottom:1px solid rgba(247,243,234,.18);
  font-size:15px;color:rgba(247,243,234,.9);line-height:1.8;
}
.proof ol li::before{
  counter-increment:pf;content:"0" counter(pf);
  font-family:var(--font-mono);font-size:13px;color:var(--amber);
}
.proof ol li strong{display:block;color:var(--paper-2);font-weight:600;margin-bottom:2px;}

/* ============ FAQ ============ */
.faq{display:grid;gap:0;margin-top:var(--sp-5);border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4);
  align-items:start;padding:24px 0;
}
.faq summary::-webkit-details-marker{display:none;}
.faq__q{font-size:17px;font-weight:600;color:var(--ink);position:relative;padding-right:30px;}
.faq__q::after{
  content:"+";position:absolute;right:0;top:-2px;
  font-family:var(--font-mono);font-size:20px;color:var(--amber-dark);
  transition:transform .26s ease;
}
.faq details[open] .faq__q::after{content:"−";}
.faq__a{font-size:15px;color:var(--ink-2);line-height:1.85;padding:0 0 26px;}
.faq details[open] .faq__a{animation:fadeUp .26s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ============ CTA 与表单 ============ */
.cta-band{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:var(--sp-5);display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-6);
  box-shadow:var(--shadow-s);
}
.cta-band h2{margin-bottom:14px;}
.cta-band p{color:var(--ink-2);font-size:16px;}
.cta-band__list{margin-top:22px;display:grid;gap:10px;font-size:15px;color:var(--ink-2);}
.cta-band__list li{display:flex;gap:10px;}
.cta-band__list li::before{content:"✓";color:var(--tea-mid);}
.form{display:grid;gap:16px;}
.form__row{display:grid;gap:8px;}
.form label{font-size:14px;color:var(--ink);}
.form .req{color:var(--seal);margin-left:4px;}
.form input,.form textarea,.form select{
  height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-s);
  background:var(--paper);font-size:15px;transition:border-color .2s ease,background-color .2s ease;
}
.form textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.75;resize:vertical;}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--amber);outline:none;background:var(--paper-2);}
.form__hint{font-size:13px;color:var(--ink-2);}
.form__note{
  display:none;margin-top:4px;padding:12px 14px;border-radius:var(--radius-s);
  background:rgba(78,107,88,.12);border:1px solid var(--tea-mid);
  color:var(--tea-deep);font-size:14px;
}
.form__note.is-visible{display:block;}

/* ============ 浮动 CTA / 返回顶部 ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top{
  position:fixed;right:26px;bottom:92px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--paper-2);border:1px solid var(--line);color:var(--ink-2);
  font-size:12px;opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s,border-color .2s ease,color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{border-color:var(--ink-2);color:var(--ink);}

/* ============ 空态（预留） ============ */
.empty-state{
  text-align:center;padding:30%;background:var(--paper-2);
  border:1px dashed var(--line);border-radius:var(--radius-m);
}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--tea-deep);color:rgba(247,243,234,.92);margin-top:0;}
.footer__cta{
  border-bottom:1px solid rgba(247,243,234,.16);
  padding:26px 0;
}
.footer__cta-inner{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.footer__cta-inner strong{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--paper-2);}
.footer__grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-4);
  padding:56px 0 40px;
}
.footer__brand{display:inline-flex;align-items:baseline;gap:6px;margin-bottom:14px;}
.footer__brand .logo__mark{color:var(--paper-2);}
.footer__brand .logo__name{color:var(--paper-2);}
.footer__text{font-size:14px;line-height:1.8;color:rgba(247,243,234,.78);}
.footer__title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:rgba(247,243,234,.62);margin-bottom:14px;}
.footer__list li{font-size:14px;line-height:1.9;color:rgba(247,243,234,.84);}
.footer__list a{
  color:rgba(247,243,234,.84);
  background-image:linear-gradient(var(--amber),var(--amber));
  background-repeat:no-repeat;background-size:0 1px;background-position:left bottom 2px;
  transition:background-size .24s ease,color .2s ease;
}
.footer__list a:hover{color:var(--paper-2);background-size:100% 1px;}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 0 26px;border-top:1px solid rgba(247,243,234,.16);
  font-size:13px;color:rgba(247,243,234,.66);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .mega-panel{width:640px;}
}
@media (max-width:991px){
  :root{--header-h:60px;}
  .header__inner{gap:12px;}
  .nav{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .nav__list{flex-wrap:nowrap;}
  .nav::-webkit-scrollbar{display:none;}
  .mega-wrap{display:none;}
  .entry{grid-template-columns:1fr;gap:20px;}
  .entry__media img{height:220px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .catalog__list{grid-template-columns:repeat(2,1fr);}
  .proof__grid{grid-template-columns:1fr;gap:var(--sp-4);}
  .cta-band{grid-template-columns:1fr;gap:32px;}
  .faq summary{grid-template-columns:1fr;gap:8px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  h3{font-size:19px;}
  .cat-hero__inner{padding:48px 0 40px;min-height:260px;}
  .catalog{padding:20px;}
  .catalog__list{grid-template-columns:1fr;}
  .entry{padding:32px 0;}
  .entry__media img{height:190px;}
  .steps{grid-template-columns:1fr;}
  .proof{padding:56px 0;}
  .float-cta{
    right:0;left:0;bottom:0;transform:none;
    padding:0 16px 12px;
  }
  .float-cta .btn{width:100%;height:48px;border-radius:var(--radius-m);}
  .to-top{right:16px;bottom:76px;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .cat-hero__facts{font-size:13px;}
  .btn{padding:0 20px;font-size:15px;}
  .catalog__head{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .entry:hover .entry__media img{transform:none;}
  .step:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --tea-deep:#2F4A3C;
  --tea-mid:#4E6B58;
  --amber:#C4823A;
  --amber-dark:#A96C2B;
  --amber-soft:#F0E0C6;
  --seal:#A8402F;
  --paper:#F7F3EA;
  --paper-2:#FFFDF9;
  --line:#E4DDCE;
  --line-strong:#CFC5B1;
  --radius-s:6px;
  --radius-m:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(28,26,23,.06);
  --shadow-2:0 8px 24px rgba(28,26,23,.10);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
  --sp-7:112px;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",Georgia,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--tea-deep);color:#fff;padding:10px 16px;border-radius:0 0 var(--radius-s) 0;z-index:99}
.skip-link:focus{left:0}

/* ── Header ── */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);min-height:72px}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-size:22px;font-weight:600;letter-spacing:-.01em}
.logo__mark{color:var(--amber);font-family:var(--font-mono);font-size:20px;letter-spacing:.02em}
.logo__name{color:var(--tea-deep)}
.logo:hover .logo__name{color:var(--amber)}
.nav{flex:1 1 auto}
.nav__list{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.nav__list::-webkit-scrollbar{display:none}
.nav__link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;white-space:nowrap;
  font-size:15px;color:var(--ink-2);border-radius:var(--radius-s);
  transition:color .2s ease,background-color .2s ease;
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:10px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.nav__link:hover{color:var(--ink)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{transform:scaleX(1)}
.header__cta{display:inline-flex;align-items:center;height:44px;padding:0 20px;border-radius:var(--radius-pill);background:var(--amber);color:#FBF6EC;font-size:15px;font-weight:600;box-shadow:var(--shadow-1);transition:background-color .2s ease,transform .2s ease}
.header__cta:hover{background:var(--amber-dark);transform:translateY(-1px)}
.header__cta:active{transform:translateY(0)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 28px;border-radius:var(--radius-pill);font-size:16px;font-weight:600;transition:background-color .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.btn--primary{background:var(--amber);color:#FBF6EC;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--amber-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn--ghost:hover{background:rgba(28,26,23,.08)}
.btn--sm{height:44px;padding:0 20px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--tea-deep);background-image:linear-gradient(var(--tea-deep),var(--tea-deep));background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .24s ease}
.text-link:hover{background-size:100% 1px}

/* ── Breadcrumb ── */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding-top:var(--sp-4)}
.breadcrumb a{color:var(--ink-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb span[aria-current]{color:var(--ink);font-weight:600}
.breadcrumb .sep{color:var(--line-strong)}

/* ── Article head ── */
.article-head{padding:var(--sp-3) 0 var(--sp-4);border-bottom:1px solid var(--line)}
.article-head h1{
  font-family:var(--font-serif);
  font-size:clamp(26px,3.6vw,38px);
  font-weight:600;line-height:1.32;letter-spacing:-.01em;
  max-width:860px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:var(--sp-3);font-size:14px;color:var(--ink-2)}
.article-meta .dot{color:var(--line-strong)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--amber-soft);color:var(--ink);font-size:13px;font-weight:600}
.badge--quiet{background:#EDE7D9;color:var(--ink-2);font-weight:500}
.article-cover{margin-top:var(--sp-4);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;background:var(--paper-2)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--ink-2);padding:10px 16px;border-top:1px solid var(--line)}

/* ── Layout ── */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:var(--sp-5);align-items:start;padding:var(--sp-5) 0 var(--sp-6)}
.article-main{max-width:760px;margin:0 auto;min-width:0}

/* ── Article body ── */
.article-body{font-size:16px;line-height:1.85;color:var(--ink);overflow-wrap:break-word}
.article-body > * + *{margin-top:20px}
.article-body p{color:var(--ink)}
.article-body h2{
  position:relative;margin-top:var(--sp-5);
  padding-left:18px;
  font-family:var(--font-serif);font-size:clamp(22px,2.4vw,28px);
  font-weight:600;line-height:1.4;letter-spacing:-.01em;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;width:3px;height:1.05em;background:var(--seal);border-radius:2px}
.article-body h3{margin-top:var(--sp-4);font-size:20px;font-weight:600;line-height:1.5}
.article-body h4{margin-top:var(--sp-3);font-size:17px;font-weight:600}
.article-body ul,.article-body ol{padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-top:10px}
.article-body li::marker{color:var(--tea-mid)}
.article-body a{color:var(--tea-deep);border-bottom:1px solid var(--tea-mid);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:var(--amber);border-color:var(--amber)}
.article-body blockquote{margin:var(--sp-4) 0;padding:18px 22px;background:var(--paper-2);border-left:3px solid var(--amber);border-radius:0 var(--radius-m) var(--radius-m) 0;color:var(--ink-2)}
.article-body blockquote p{color:var(--ink-2)}
.article-body img{border-radius:8px;border:1px solid var(--line);margin:var(--sp-4) auto 0}
.article-body figure{margin:var(--sp-4) 0 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;font-size:15px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m)}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 16px;text-align:left;white-space:nowrap}
.article-body th{background:#F1EADB;font-weight:600;color:var(--ink)}
.article-body code{font-family:var(--font-mono);font-size:14px;background:#F1EADB;border:1px solid var(--line);border-radius:var(--radius-s);padding:2px 6px}
.article-body pre{overflow-x:auto;background:#F1EADB;border:1px solid var(--line);border-radius:var(--radius-m);padding:18px;font-size:14px;line-height:1.7}
.article-body pre code{background:none;border:0;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:var(--sp-5) 0}

/* ── Aside ── */
.aside{display:flex;flex-direction:column;gap:var(--sp-3);position:sticky;top:96px}
.panel{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:22px;box-shadow:var(--shadow-1)}
.panel__title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--ink-2);text-transform:uppercase;margin-bottom:14px}
.panel__title::before{content:"";width:14px;height:2px;background:var(--amber);border-radius:2px}
.toc ol{counter-reset:toc;display:flex;flex-direction:column;gap:8px}
.toc li{counter-increment:toc;font-size:14px;line-height:1.6}
.toc a{display:flex;gap:8px;color:var(--ink-2);padding:6px 8px;border-radius:var(--radius-s);transition:background-color .2s ease,color .2s ease}
.toc a::before{content:counter(toc,decimal-leading-zero);font-family:var(--font-mono);font-size:12px;color:var(--seal);padding-top:2px}
.toc a:hover{background:#F1EADB;color:var(--ink)}
.mini-list{display:flex;flex-direction:column}
.mini-list li{padding:12px 0;border-top:1px solid var(--line)}
.mini-list li:first-child{border-top:0;padding-top:0}
.mini-list a{font-size:15px;line-height:1.6;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.mini-list a:hover{color:var(--amber)}
.mini-list time{display:block;margin-top:6px;font-size:13px;color:var(--ink-2)}
.entry-card{background:var(--tea-deep);color:#EFE9DC;border-radius:var(--radius-m);padding:22px;border:1px solid var(--tea-deep)}
.entry-card p{font-size:14px;line-height:1.8;color:#DCD6C6;margin-bottom:16px}
.entry-card .btn{width:100%;background:#EFE9DC;color:var(--tea-deep)}
.entry-card .btn:hover{background:#FFFFFF;color:var(--tea-deep)}

/* ── Prev / Next ── */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-3);margin-top:var(--sp-6);padding-top:var(--sp-4);border-top:1px solid var(--line)}
.pager__item{display:block;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);padding:20px;transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease}
.pager__item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.pager__label{font-size:13px;letter-spacing:.06em;color:var(--ink-2);margin-bottom:8px}
.pager__title{font-size:16px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pager__item--next{text-align:right}
.pager__item--empty{color:var(--ink-2);font-size:14px}
.pager-foot{margin-top:var(--sp-3)}

/* ── Related ── */
.related{padding-bottom:var(--sp-6)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-3);margin-bottom:var(--sp-4)}
.section-head h2{font-family:var(--font-serif);font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35}
.section-head p{font-size:14px;color:var(--ink-2);margin-top:6px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-3)}
.card{display:flex;flex-direction:column;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
.card__media{overflow:hidden;border-bottom:1px solid var(--line)}
.card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card__title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2)}

/* ── Empty state ── */
.empty-state{
  text-align:center;padding:calc(var(--sp-5) * 1.2) var(--sp-3);
  background:var(--paper-2);border:1px dashed var(--line-strong);border-radius:var(--radius-m);
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state__icon{width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--tea-mid)}
.empty-state__text{font-size:16px;color:var(--ink-2)}

/* ── CTA bar ── */
.cta-bar{background:var(--tea-deep);color:#EFE9DC;border-radius:var(--radius-m);padding:var(--sp-4);display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);flex-wrap:wrap}
.cta-bar h2{font-family:var(--font-serif);font-size:clamp(20px,2.2vw,26px);font-weight:600;color:#FBF8F1}
.cta-bar p{font-size:14px;color:#D3CCBB;margin-top:8px;max-width:560px}
.cta-bar .btn{background:#EFE9DC;color:var(--tea-deep)}
.cta-bar .btn:hover{background:#FFFFFF;color:var(--tea-deep)}

/* ── Footer ── */
.site-footer{background:var(--tea-deep);color:#E7E1D3;margin-top:var(--sp-6);padding:var(--sp-6) 0 var(--sp-4)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-4)}
.footer__brand{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-size:22px;font-weight:600;color:#FBF8F1}
.footer__brand .logo__mark{color:var(--amber)}
.footer__text{font-size:14px;line-height:1.8;color:#C9C2B1;margin-top:12px;max-width:300px}
.footer__title{font-size:14px;font-weight:600;letter-spacing:.06em;color:#FBF8F1;margin-bottom:14px}
.footer__list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#C9C2B1}
.footer__list a{color:#C9C2B1;background-image:linear-gradient(#FBF8F1,#FBF8F1);background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .24s ease,color .24s ease}
.footer__list a:hover{color:#FBF8F1;background-size:100% 1px}
.footer__bottom{margin-top:var(--sp-5);padding-top:var(--sp-3);border-top:1px solid rgba(231,225,211,.18);display:flex;justify-content:space-between;gap:var(--sp-2);flex-wrap:wrap;font-size:13px;color:#B9B2A1}

/* ── Floating CTA & back to top ── */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:80;display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 26px;border-radius:var(--radius-pill);background:var(--amber);color:#FBF6EC;font-size:16px;font-weight:600;box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--amber-dark)}
.back-top{position:fixed;right:24px;bottom:88px;z-index:80;width:44px;height:44px;border-radius:50%;background:var(--paper-2);border:1px solid var(--line-strong);color:var(--tea-deep);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:#F1EADB}

/* ── Responsive ── */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr);gap:var(--sp-4);padding:var(--sp-4) 0 var(--sp-5)}
  .aside{position:static;flex-direction:row;flex-wrap:wrap}
  .aside > *{flex:1 1 300px}
  .article-main{max-width:760px}
}
@media (max-width:991px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:var(--sp-4)}
  .nav__link{padding:0 10px;font-size:14px}
  .header__cta{display:none}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header__inner{min-height:60px;gap:var(--sp-2)}
  .logo{font-size:19px}
  .nav__list{gap:0}
  .nav__link{min-height:44px;padding:0 9px;font-size:13.5px}
  .nav__link::after{left:9px;right:9px;bottom:8px}
  .breadcrumb{padding-top:var(--sp-3)}
  .article-head{padding:var(--sp-2) 0 var(--sp-3)}
  .article-body{font-size:15.5px}
  .card-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager__item--next{text-align:left}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .footer__grid{grid-template-columns:1fr}
  .float-cta{right:0;left:0;bottom:0;height:48px;border-radius:0;justify-content:center;padding-bottom:env(safe-area-inset-bottom)}
  .back-top{right:16px;bottom:64px;width:40px;height:40px}
  .site-footer{margin-top:var(--sp-5);padding:var(--sp-5) 0 var(--sp-3)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .card:hover,.pager__item:hover,.float-cta,.back-top{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --tea-deep:#2F4A3C;
  --tea-mid:#4E6B58;
  --amber:#C4823A;
  --amber-dark:#A96E2D;
  --amber-soft:#F0E0C6;
  --seal:#A8402F;
  --paper:#F7F3EA;
  --paper-2:#FFFDF9;
  --line:#E4DDCE;
  --cream:#F3EFE6;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,26,23,.06);
  --sh-2:0 8px 24px rgba(28,26,23,.10);
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,Menlo,monospace;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.h1{font-family:var(--font-serif);font-weight:600;font-size:clamp(34px,5vw,58px);line-height:1.16;letter-spacing:-.01em}
.h2{font-family:var(--font-serif);font-weight:600;font-size:clamp(26px,3.4vw,38px);line-height:1.24;letter-spacing:-.01em}
.h3{font-size:20px;font-weight:600;line-height:1.5}
.kicker{font-size:13px;letter-spacing:.18em;color:var(--amber);font-weight:600;text-transform:uppercase}
.lead{font-size:17px;line-height:1.8;color:var(--ink-2)}
.muted{color:var(--ink-2)}
.small{font-size:13px;line-height:1.75}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-stuck{box-shadow:0 1px 10px rgba(28,26,23,.08)}
.header__inner{display:flex;align-items:center;height:var(--header-h);gap:8px}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-weight:600;font-size:21px;letter-spacing:.02em;white-space:nowrap}
.logo__mark{color:var(--tea-deep)}
.logo__name{font-size:15px;font-weight:500;color:var(--ink-2);letter-spacing:.08em}
.nav{margin-left:28px;min-width:0}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 12px;
  font-size:15px;color:var(--ink-2);
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--amber);
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.nav__link:hover{color:var(--ink)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.mega{position:relative}
.mega__trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 16px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:14px;color:var(--ink-2);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.mega__trigger:hover{border-color:var(--ink);color:var(--ink);background:rgba(28,26,23,.04)}
.mega__trigger svg{width:14px;height:14px;transition:transform .24s ease}
.mega.is-open .mega__trigger svg{transform:rotate(180deg)}
.mega__panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:min(820px,calc(100vw - 48px));
  display:grid;grid-template-columns:1fr 1fr 1.05fr;gap:28px;
  padding:28px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega:hover .mega__panel,
.mega:focus-within .mega__panel,
.mega.is-open .mega__panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{font-size:13px;letter-spacing:.14em;color:var(--ink-2);margin-bottom:14px}
.mega__list li+li{margin-top:2px}
.mega__list a{
  display:block;padding:8px 0;font-size:15px;color:var(--ink);
  border-bottom:1px solid transparent;
  transition:color .2s ease;
}
.mega__list a:hover{color:var(--amber)}
.mega__news li{padding:8px 0;border-bottom:1px solid var(--line)}
.mega__news li:last-child{border-bottom:0}
.mega__news a{font-size:14px;color:var(--ink);display:block;line-height:1.6}
.mega__news a:hover{color:var(--amber)}
.mega__news time{display:block;font-size:12px;color:var(--ink-2);font-family:var(--font-mono);margin-top:4px}
.mega__card{
  display:block;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;background:var(--paper);
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
}
.mega__card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--ink-2)}
.mega__card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.mega__card-body{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;font-size:14px;font-weight:600}
.mega__card-body .arrow{color:var(--amber);font-family:var(--font-mono)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease,transform .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--amber);color:var(--cream)}
.btn--primary:hover{background:var(--amber-dark);transform:translateY(1px)}
.btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn--ghost:hover{background:rgba(28,26,23,.08)}
.btn--sm{height:44px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--tea-deep);
  background-image:linear-gradient(var(--tea-deep),var(--tea-deep));
  background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .24s cubic-bezier(.2,.7,.3,1);
}
.link-more:hover{background-size:100% 1px}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--amber)}
.crumb span.sep{color:var(--line)}
.crumb .current{color:var(--ink)}

/* ============ 分类首屏（强排版） ============ */
.cat-hero{
  position:relative;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  background-color:var(--paper);
  background-image:
    repeating-linear-gradient(0deg,rgba(28,26,23,.035) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(90deg,rgba(28,26,23,.035) 0 1px,transparent 1px 56px);
  overflow:hidden;
}
.cat-hero__grid{display:grid;grid-template-columns:minmax(0,7.2fr) minmax(0,4fr);gap:48px;align-items:end}
.cat-hero__head{max-width:760px}
.cat-hero .kicker{display:block;margin-bottom:18px}
.cat-hero h1{margin-bottom:20px}
.cat-hero__lead{max-width:620px}
.hero-seal{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;margin-bottom:22px;
  border:1px solid var(--seal);border-radius:var(--r-sm);
  color:var(--seal);font-family:var(--font-serif);font-size:22px;
  transform:rotate(-3deg);
}
.cat-meta{border-top:1px solid var(--line);padding-top:20px}
.cat-meta dl{display:grid;gap:14px}
.cat-meta dt{font-size:12px;letter-spacing:.14em;color:var(--amber);font-weight:600}
.cat-meta dd{font-size:13px;line-height:1.75;color:var(--ink-2);margin:6px 0 0}
.cat-meta time{font-family:var(--font-mono)}

/* ============ 章节文本流 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section__head{max-width:760px;margin-bottom:40px}
.section__head .kicker{display:block;margin-bottom:14px}
.section__head .lead{margin-top:14px}
.chapters{border-top:1px solid var(--line)}
.chapter{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:36px;
  padding:56px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:96px;
}
.chapter__num{font-family:var(--font-mono);font-size:15px;color:var(--seal);letter-spacing:.12em;padding-top:12px}
.chapter__title{font-family:var(--font-serif);font-size:clamp(24px,2.8vw,32px);font-weight:600;line-height:1.3;margin-bottom:24px}
.chapter__cols{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.chapter__cols .col--offset{margin-top:44px}
.chapter__cols p{font-size:16px;color:var(--ink-2);line-height:1.9}
.chapter__cols p+p{margin-top:20px}
.chapter__note{
  margin-top:28px;padding:20px 22px;
  background:var(--paper-2);border:1px solid var(--line);border-left:3px solid var(--amber);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:14px;color:var(--ink-2);line-height:1.8;
}

/* ============ 全宽图 ============ */
.figure-wide{padding:0 0 72px}
.figure-wide img{
  width:100%;aspect-ratio:21/9;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--r-md);
}
.figure-wide figcaption{margin-top:14px;text-align:center;font-size:13px;color:var(--ink-2)}

/* ============ 深色区块 ============ */
.band-dark{
  position:relative;
  padding:88px 0;
  background-color:var(--tea-deep);
  background-image:linear-gradient(rgba(47,74,60,.92),rgba(47,74,60,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:var(--cream);
}
.band-dark .h2{color:var(--cream)}
.band-dark .kicker{color:var(--amber-soft)}
.band-dark .lead{color:rgba(243,239,230,.82)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:48px}
.stat{padding-top:22px;border-top:2px solid var(--amber)}
.stat__num{font-family:var(--font-serif);font-size:clamp(28px,3vw,38px);font-weight:600;line-height:1.1;color:var(--cream)}
.stat__label{display:block;margin-top:10px;font-size:13px;letter-spacing:.06em;color:rgba(243,239,230,.72)}
.stat__desc{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(243,239,230,.8)}

/* ============ 流程时间线 ============ */
.steps{margin-top:8px}
.step{
  display:grid;grid-template-columns:88px minmax(0,1fr);gap:28px;
  padding:32px 0;border-top:1px solid var(--line);
}
.step__num{font-family:var(--font-serif);font-size:26px;color:var(--amber);line-height:1.2}
.step__title{font-size:18px;font-weight:600;margin-bottom:10px}
.step__text{font-size:15px;color:var(--ink-2);max-width:760px}
.step__meta{margin-top:12px;font-size:13px;color:var(--ink-2);font-family:var(--font-mono)}

/* ============ FAQ ============ */
.faq{margin-top:8px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:44px;padding:22px 4px;
  font-size:17px;font-weight:600;line-height:1.6;
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";flex:none;color:var(--amber);font-family:var(--font-mono);font-size:20px;line-height:1;
  transition:transform .26s ease;
}
.faq details[open] summary::after{content:"−"}
.faq__answer{padding:0 4px 26px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:860px}

/* ============ 表单 ============ */
.inquiry-wrap{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-md);padding:44px;box-shadow:var(--sh-1)}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:28px}
.field--full{grid-column:1 / -1}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.field .req{color:var(--seal);margin-left:4px}
.field input,.field textarea{
  width:100%;background:#fff;
  border:1px solid var(--line);border-radius:8px;
  padding:0 14px;height:44px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9C9484}
.field input:focus,.field textarea:focus{border-color:var(--amber);outline:none;box-shadow:0 0 0 3px rgba(196,130,58,.16)}
.form__foot{display:flex;align-items:center;gap:20px;margin-top:28px;flex-wrap:wrap}
.form__hint{font-size:13px;color:var(--ink-2)}
.form__error{color:var(--seal);font-size:13px;margin-top:8px}
.form__success{
  margin-top:20px;padding:14px 18px;
  background:rgba(47,74,60,.08);border-left:3px solid var(--tea-deep);
  border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:14px;color:var(--tea-deep);
}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--amber-soft);color:var(--ink);
  font-size:12px;letter-spacing:.06em;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;color:var(--ink-2);background:var(--paper-2);
}

/* ============ CTA 条 ============ */
.cta-band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px 0;flex-wrap:wrap}
.cta-band__title{font-family:var(--font-serif);font-size:clamp(20px,2.4vw,26px);font-weight:600}
.cta-band__text{font-size:14px;color:var(--ink-2);margin-top:8px;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{background:var(--tea-deep);color:var(--cream);padding-top:0}
.footer__cta{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 0;border-bottom:1px solid rgba(243,239,230,.18);
}
.footer__cta strong{font-family:var(--font-serif);font-size:clamp(18px,2.2vw,24px);font-weight:600}
.footer__cta p{font-size:14px;color:rgba(243,239,230,.75);margin-top:6px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding:56px 0 48px}
.footer__brand{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--font-serif);font-size:21px;margin-bottom:14px}
.footer__brand .logo__mark{color:var(--amber-soft)}
.footer__brand .logo__name{font-size:15px;color:rgba(243,239,230,.8);letter-spacing:.08em}
.footer__text{font-size:14px;line-height:1.85;color:rgba(243,239,230,.78);max-width:340px}
.footer__title{font-size:13px;letter-spacing:.14em;margin-bottom:16px;color:rgba(243,239,230,.95)}
.footer__list li{margin-bottom:10px;font-size:14px;color:rgba(243,239,230,.78)}
.footer__list a{color:rgba(243,239,230,.85);transition:color .2s ease}
.footer__list a:hover{color:var(--amber-soft)}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0;border-top:1px solid rgba(243,239,230,.18);
  font-size:13px;color:rgba(243,239,230,.66);
}
.footer__bottom .mono{font-family:var(--font-mono)}

/* ============ 浮动 CTA / 返回顶部 ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 26px;border-radius:var(--r-pill);
  background:var(--amber);color:var(--cream);font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--amber-dark)}
.to-top{
  position:fixed;right:28px;bottom:92px;z-index:70;
  width:44px;height:44px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--paper-2);border:1px solid var(--line);color:var(--ink);
  box-shadow:var(--sh-1);font-family:var(--font-mono);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,border-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--ink)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 20px}
  .header__inner{gap:6px}
  .nav{margin-left:16px}
  .nav__link{padding:0 10px;font-size:14px}
  .mega__panel{grid-template-columns:1fr 1fr 1fr;width:min(720px,calc(100vw - 40px));padding:24px}
  .cat-hero__grid{gap:36px}
  .stat-grid{gap:24px}
}
@media (max-width:991px){
  :root{--header-h:60px}
  .header__inner{flex-wrap:wrap;height:auto;padding:10px 0;row-gap:6px}
  .nav{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .nav__list{flex-wrap:nowrap}
  .nav__link{height:38px;padding:0 12px}
  .header__actions{margin-left:auto}
  .mega__panel{position:absolute;right:0;top:calc(100% + 10px);width:min(420px,calc(100vw - 40px));grid-template-columns:1fr;gap:20px;padding:22px;max-height:72vh;overflow:auto}
  .cat-hero{padding:48px 0 44px}
  .cat-hero__grid{grid-template-columns:1fr;gap:32px;align-items:start}
  .section{padding:64px 0}
  .section--tight{padding:48px 0}
  .chapter{grid-template-columns:1fr;gap:16px;padding:40px 0}
  .chapter__num{padding-top:0}
  .chapter__cols{grid-template-columns:1fr;gap:20px}
  .chapter__cols .col--offset{margin-top:0}
  .figure-wide{padding-bottom:56px}
  .band-dark{padding:64px 0}
  .stat-grid{grid-template-columns:1fr 1fr}
  .step{grid-template-columns:64px minmax(0,1fr);gap:20px}
  .inquiry-wrap{padding:32px}
  .form__grid{grid-template-columns:1fr;gap:18px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 36px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .cat-hero{padding:36px 0 32px}
  .cat-hero p.lead{font-size:16px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .chapter__title{font-size:22px;margin-bottom:18px}
  .stat-grid{grid-template-columns:1fr;gap:20px}
  .step{grid-template-columns:1fr;gap:8px}
  .step__num{font-size:22px}
  .faq summary{font-size:16px;padding:18px 2px}
  .inquiry-wrap{padding:24px;border-radius:12px}
  .cta-band__inner{padding:32px 0}
  .footer__grid{grid-template-columns:1fr;gap:24px}
  .footer__bottom{justify-content:flex-start}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;height:48px;border-radius:0;
    padding:0 16px;transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .to-top{right:16px;bottom:60px;width:42px;height:42px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .mega__card:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --tea-deep:#2F4A3C;
  --tea-mid:#4E6B58;
  --amber:#C4823A;
  --amber-dark:#A96C2C;
  --amber-soft:#F0E0C6;
  --seal:#A8402F;
  --paper:#F7F3EA;
  --paper-2:#FFFDF9;
  --line:#E4DDCE;
  --r-sm:6px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,26,23,.06);
  --sh-2:0 8px 24px rgba(28,26,23,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  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}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd,dt{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--deep{background:var(--tea-deep);color:#F2EDE3}
.section--deep .section__desc{color:#D8D2C6}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:14px;
}
h1{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(34px,5vw,56px);
  line-height:1.16;
  letter-spacing:-.01em;
}
h2{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.24;
  letter-spacing:-.01em;
}
h3{font-size:21px;font-weight:600;line-height:1.5;font-family:var(--sans)}
p{color:var(--ink-2)}
.lead{font-size:17px;line-height:1.9;color:var(--ink-2);max-width:62ch}
.section__desc{margin-top:14px;max-width:64ch}
.section__head{margin-bottom:48px}
.section__head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 14px rgba(28,26,23,.07)}
.header__inner{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:72px;
}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--serif);font-weight:600}
.logo__mark{
  font-size:22px;
  letter-spacing:.02em;
  color:var(--tea-deep);
  padding:2px 8px;
  border:1px solid var(--tea-deep);
  border-radius:var(--r-sm);
  line-height:1.3;
}
.logo__name{font-size:18px;color:var(--ink)}
.nav{margin-left:auto}
.nav__list{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:var(--r-sm);
  transition:color .2s ease,background-color .2s ease;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav__link:hover{color:var(--ink);background:rgba(28,26,23,.04)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{transform:scaleX(1)}
.mega{position:relative}
.mega__trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--ink);
  background:var(--paper-2);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.mega__trigger:hover{border-color:var(--amber);box-shadow:var(--sh-1)}
.mega__trigger svg{width:14px;height:14px;stroke:var(--ink-2)}
.mega__panel{
  position:absolute;
  right:0;
  top:calc(100% + 12px);
  width:760px;
  max-width:min(760px,86vw);
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:28px;
  display:grid;
  grid-template-columns:1fr 1fr 1.1fr;
  gap:28px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega:hover .mega__panel,
.mega:focus-within .mega__panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega__title{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ink-2);
  text-transform:uppercase;
  margin-bottom:14px;
}
.mega__list li + li{margin-top:10px}
.mega__list a{
  display:block;
  font-size:15px;
  color:var(--ink);
  padding-bottom:2px;
  background-image:linear-gradient(var(--amber),var(--amber));
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0 1px;
  transition:background-size .24s ease,color .2s ease;
}
.mega__list a:hover{background-size:100% 1px;color:var(--amber-dark)}
.mega__meta{font-size:13px;color:var(--ink-2);display:block;margin-top:2px}
.mega__card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--paper);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease;
}
.mega__card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.mega__card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.mega__card-body{padding:14px 16px 18px}
.mega__card-body strong{display:block;font-size:15px;line-height:1.55}
.mega__card-body span{font-size:13px;color:var(--amber-dark);display:inline-flex;align-items:center;gap:6px;margin-top:8px}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--ink-2);display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--amber-dark)}
.breadcrumb span[aria-current]{color:var(--ink)}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--tea-deep);
  color:#F4EFE4;
  padding:80px 0 72px;
}
.page-hero__media{position:absolute;inset:0;z-index:0}
.page-hero__media img{width:100%;height:100%;object-fit:cover;opacity:.32;filter:saturate(.85)}
.page-hero__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(47,74,60,.94) 0%,rgba(47,74,60,.82) 48%,rgba(28,26,23,.7) 100%);
}
.page-hero__inner{position:relative;z-index:1;max-width:840px}
.page-hero .breadcrumb{color:#CFC9BB;margin-bottom:26px}
.page-hero .breadcrumb span[aria-current]{color:#F4EFE4}
.page-hero h1{color:#FFFDF9;margin-bottom:20px}
.page-hero .lead{color:#DCD5C6}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.page-hero__meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  margin-top:34px;padding-top:26px;
  border-top:1px solid rgba(247,243,234,.22);
  font-size:14px;color:#DCD5C6;
}
.page-hero__meta strong{color:#FFFDF9;font-family:var(--mono);font-size:15px;margin-right:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:52px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  transition:background-color .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--amber);color:#FFFDF9;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--amber-dark);transform:translateY(1px)}
.btn--ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn--ghost:hover{background:rgba(28,26,23,.1)}
.btn--light{border:1px solid rgba(247,243,234,.6);color:#F7F3EA}
.btn--light:hover{background:rgba(247,243,234,.14)}
.btn--sm{min-height:44px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--tea-deep);
  background-image:linear-gradient(var(--tea-deep),var(--tea-deep));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size .24s ease,color .2s ease;
}
.link-more:hover{background-size:100% 1px;color:var(--amber-dark)}

/* ---------- 混合栅格卡 ---------- */
.mix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3C9B4}
.card__media{overflow:hidden}
.card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge{
  display:inline-flex;align-items:center;
  align-self:flex-start;
  padding:4px 12px;
  font-size:12px;letter-spacing:.04em;
  color:var(--ink);
  background:var(--amber-soft);
  border-radius:var(--r-pill);
}
.badge--outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
.card h3{font-size:19px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-2);
}
.card--wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr 1fr;align-items:stretch}
.card--wide .card__media{height:100%}
.card--wide .card__media img{height:100%;aspect-ratio:auto;min-height:280px}
.card--wide .card__body{padding:34px 32px;gap:14px}
.card--wide h3{font-size:24px}
.card--wide p{font-size:15px;line-height:1.9;-webkit-line-clamp:4}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;
  padding:28px 24px 26px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  display:block;
  font-family:var(--mono);
  font-size:13px;
  color:var(--seal);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8}

/* ---------- 参数面板 ---------- */
.spec-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start}
.spec-panel{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:8px 28px;
  box-shadow:var(--sh-1);
}
.spec-row{
  display:flex;justify-content:space-between;gap:24px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.spec-row:last-child{border-bottom:0}
.spec-row dt{color:var(--ink-2);flex:0 0 auto}
.spec-row dd{color:var(--ink);font-weight:500;text-align:right}
.point-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:16px;
  font-size:15px;
  color:var(--ink-2);
}
.point-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:10px;height:2px;background:var(--amber);
}

/* ---------- 引用与时间线 ---------- */
.quote{
  border-left:3px solid var(--amber);
  background:var(--paper-2);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:28px 30px;
  margin-bottom:44px;
}
.quote p{
  font-family:var(--serif);
  font-size:19px;
  line-height:1.8;
  color:var(--ink);
}
.quote cite{
  display:block;margin-top:14px;font-style:normal;font-size:13px;color:var(--ink-2);
}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.timeline li{
  border-top:2px solid var(--line);
  padding-top:18px;
}
.timeline .num{
  font-family:var(--mono);font-size:13px;color:var(--seal);display:block;margin-bottom:10px;
}
.timeline h3{font-size:17px;margin-bottom:8px}
.timeline p{font-size:14px;line-height:1.8}

/* ---------- 列表资讯 ---------- */
.news-list li{
  display:grid;
  grid-template-columns:120px 1fr auto;
  gap:24px;
  align-items:center;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.news-list li:first-child{border-top:1px solid var(--line)}
.news-list .thumb{
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--line);
}
.news-list .thumb img{aspect-ratio:3/2;object-fit:cover;width:100%}
.news-list h3{font-size:17px;margin-bottom:6px}
.news-list p{font-size:14px;line-height:1.8}
.news-list time{font-size:13px;color:var(--ink-2);white-space:nowrap}
.news-list .row-badge{align-self:flex-start;margin-bottom:8px}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq__item{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq__item[open]{border-color:#D3C9B4;box-shadow:var(--sh-1)}
.faq__item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  font-size:15px;font-weight:400;color:var(--ink-2);
  transition:transform .26s ease,color .2s ease;
}
.faq__item[open] summary::after{content:"−";color:var(--amber-dark);border-color:var(--amber)}
.faq__body{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);animation:fadeUp .26s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--tea-deep);
  color:#F4EFE4;
  border-radius:var(--r-md);
  padding:48px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{color:#FFFDF9;font-size:clamp(24px,2.6vw,30px)}
.cta-band p{color:#D6D0C2;margin-top:10px;max-width:52ch}
.cta-band__side{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 表单 ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--ink)}
.field .req{color:var(--seal)}
.field input,.field select,.field textarea{
  width:100%;
  min-height:44px;
  padding:10px 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--ink);
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:8px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(196,130,58,.16);
}
.field .hint{font-size:13px;color:var(--ink-2)}
.form__actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form__note{font-size:13px;color:var(--ink-2)}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;
  padding:30% 24px;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  background:var(--paper-2);
}
.empty-state svg{width:44px;height:44px;stroke:var(--tea-mid);margin:0 auto 16px}
.empty-state p{font-size:15px;margin-bottom:18px}

/* ---------- 浮动 CTA / 返回顶部 ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  min-height:52px;padding:0 26px;
  background:var(--amber);color:#FFFDF9;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--amber-dark)}
.to-top{
  position:fixed;
  right:28px;
  bottom:92px;
  z-index:70;
  width:44px;height:44px;
  display:grid;place-items:center;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  color:var(--ink);
  box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s,border-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--amber)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--tea-deep);color:#E9E3D6;padding:72px 0 28px;margin-top:96px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand{display:inline-flex;align-items:baseline;gap:6px;font-family:var(--serif);font-weight:600;margin-bottom:16px}
.footer__brand .logo__mark{color:#F4EFE4;border-color:rgba(244,239,228,.55)}
.footer__brand .logo__name{color:#F4EFE4;font-size:18px}
.footer__text{font-size:14px;line-height:1.85;color:#C9C2B2;max-width:36ch}
.footer__title{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#B9B2A1;margin-bottom:16px}
.footer__list li{margin-bottom:10px;font-size:14px;color:#D8D2C4}
.footer__list a{
  color:#E9E3D6;
  background-image:linear-gradient(#F4EFE4,#F4EFE4);
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size .24s ease,color .2s ease;
}
.footer__list a:hover{background-size:100% 1px;color:#FFFDF9}
.footer__bottom{
  margin-top:56px;padding-top:22px;
  border-top:1px solid rgba(244,239,228,.2);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#B9B2A1;
}

/* ---------- 动效与可访问性 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}
@media (max-width:1199px){
  .container{padding:0 20px}
  .mega__panel{width:640px}
  .card--wide .card__body{padding:28px}
}
@media (max-width:991px){
  .nav__list{gap:0}
  .mega{display:none}
  .mix-grid{grid-template-columns:repeat(2,1fr)}
  .card--wide{grid-column:span 2;grid-template-columns:1fr}
  .card--wide .card__media img{min-height:0;aspect-ratio:16/9}
  .steps{grid-template-columns:repeat(2,1fr)}
  .spec-wrap{grid-template-columns:1fr;gap:32px}
  .timeline{grid-template-columns:1fr;gap:20px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .site-header .header__inner{min-height:60px;gap:16px}
  .nav{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .nav__list{flex-wrap:nowrap;padding-bottom:4px}
  .nav__link{padding:0 12px;font-size:14px;white-space:nowrap}
  .nav__link::after{left:12px;right:12px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-hero{padding:60px 0 52px}
  .mix-grid{grid-template-columns:1fr}
  .card--wide{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:0}
  .news-list li{grid-template-columns:1fr;gap:12px}
  .news-list .thumb{max-width:180px}
  .form{grid-template-columns:1fr}
  .faq__item summary{padding:18px 20px;font-size:16px}
  .faq__body{padding:0 20px 20px}
  .spec-panel{padding:4px 20px}
  .spec-row{flex-direction:column;gap:6px}
  .spec-row dd{text-align:left;font-weight:600}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;
    border-radius:0;
    min-height:48px;
    justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .to-top{right:16px;bottom:64px}
  .footer__grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 24px;margin-top:56px}
}
@media (max-width:520px){
  h1{font-size:30px}
  .page-hero__meta{gap:10px 18px;font-size:13px}
  .btn{width:100%;padding:0 20px}
  .page-hero__actions .btn{width:auto;flex:1 1 auto}
  .cta-band__side{width:100%}
}