/* roulang page: index */
:root{
  --brand-900:#0C2B26;
  --brand-700:#14554A;
  --brand-500:#1E6E5F;
  --brand-100:#E4EEEA;
  --accent-500:#D9663D;
  --accent-600:#C2562F;
  --accent-100:#FBEAE2;
  --sand-50:#F7F5F1;
  --sand-100:#EFE9DF;
  --card:#FFFFFF;
  --ink-900:#16211D;
  --ink-600:#55635D;
  --ink-400:#8A9791;
  --line:#E3DDD2;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(12,43,38,.04), 0 8px 24px -16px rgba(12,43,38,.18);
  --sh-2:0 14px 34px -18px rgba(12,43,38,.28);
  --sh-cta:0 6px 18px -10px rgba(217,102,61,.65);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--sand-50);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-500);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:.005em;}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;}
.section-alt{background:var(--sand-100);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.sec-title{font-size:clamp(22px,2vw,28px);line-height:1.5;font-weight:700;padding-left:14px;border-left:4px solid var(--accent-500);}
.sec-desc{margin:14px 0 0;color:var(--ink-600);font-size:15.5px;max-width:62em;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;}
.text-link i{font-size:12px;transition:transform .22s var(--ease);}
.text-link:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover i{transform:translateX(3px);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;white-space:nowrap;text-decoration:none;transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--sh-cta);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.2);}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent;}
.btn-outline:hover{background:rgba(20,85,74,.08);color:var(--brand-700);}
.btn-outline:active{background:rgba(20,85,74,.14);}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-ghost:active{background:rgba(255,255,255,.22);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:500;line-height:1;}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 10px 30px -26px rgba(0,0,0,.7);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -14px rgba(12,43,38,.3);
}
.nav-inner{max-width:1180px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;flex-shrink:0;}
.brand:hover{color:#fff;}
.brand-mark{font-size:19px;letter-spacing:.01em;line-height:1;}
.brand-tag{font-size:11.5px;font-weight:500;padding:4px 9px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);color:#fff;line-height:1.2;transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);}
.is-scrolled .brand{color:var(--ink-900);}
.is-scrolled .brand:hover{color:var(--brand-700);}
.is-scrolled .brand-tag{background:var(--brand-100);border-color:transparent;color:var(--brand-700);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);transition:background .2s var(--ease),color .2s var(--ease);}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14);}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.2);}
.is-scrolled .nav-link{color:var(--ink-600);}
.is-scrolled .nav-link:hover{color:var(--brand-700);background:rgba(20,85,74,.08);}
.is-scrolled .nav-link.is-active{color:var(--brand-700);background:var(--brand-100);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-search{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.32);background:transparent;color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);}
.nav-search:hover{background:rgba(255,255,255,.16);}
.is-scrolled .nav-search{color:var(--brand-700);border-color:var(--line);}
.is-scrolled .nav-search:hover{background:var(--brand-100);border-color:transparent;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.32);background:transparent;position:relative;cursor:pointer;padding:0;transition:background .2s var(--ease),border-color .2s var(--ease);}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:#fff;transition:transform .24s var(--ease),opacity .2s var(--ease),background .24s var(--ease);}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:28px;}
.is-scrolled .nav-toggle{border-color:var(--line);}
.is-scrolled .nav-toggle span{background:var(--ink-900);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{display:none;position:fixed;top:68px;left:0;right:0;z-index:99;background:rgba(255,255,255,.98);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 24px 44px -30px rgba(12,43,38,.5);padding:8px 16px 20px;transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;transition:transform .26s var(--ease),opacity .22s var(--ease),visibility .26s var(--ease);}
.mobile-panel.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
.mobile-panel a.m-link{display:flex;align-items:center;height:48px;padding:0 8px;font-size:16px;font-weight:500;color:var(--ink-900);border-bottom:1px solid var(--line);}
.mobile-panel a.m-link:hover{color:var(--brand-700);}
.mobile-panel a.m-link.is-active{color:var(--brand-700);}
.mobile-panel .m-cta{margin-top:16px;}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--brand-900);padding:150px 0 130px;display:flex;align-items:center;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.55;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(104deg,rgba(12,43,38,.95) 0%,rgba(12,43,38,.84) 44%,rgba(12,43,38,.52) 100%);}
.hero-inner{position:relative;z-index:2;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);color:#fff;font-size:13px;font-weight:500;line-height:1.4;}
.hero h1{color:#fff;font-size:clamp(30px,4.4vw,46px);line-height:1.28;font-weight:700;margin:24px 0 0;max-width:17em;}
.hero-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.85;margin:18px 0 0;max-width:36em;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin:30px 0 0;color:rgba(255,255,255,.78);font-size:14px;}
.hero-points li{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{font-size:13px;color:var(--accent-500);}

/* 信任条 */
.trust-wrap{position:relative;z-index:3;margin-top:-48px;}
.trust-bar{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;}
.trust-cell{padding:22px 18px;text-align:center;border-right:1px solid var(--line);}
.trust-cell:last-child{border-right:0;}
.trust-num{display:block;font-size:24px;font-weight:700;color:var(--brand-900);line-height:1.3;}
.trust-label{display:block;margin-top:4px;font-size:13.5px;color:var(--ink-600);}

/* 卖点非对称 */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:44px;align-items:stretch;}
.feat-a{grid-column:span 6;}
.feat-b,.feat-c{grid-column:span 3;}
.feat-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;display:flex;flex-direction:column;transition:box-shadow .24s var(--ease),transform .24s var(--ease);}
.feat-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.feat-badge{position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;z-index:2;}
.feat-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(140deg,var(--brand-700),var(--brand-900));margin-bottom:20px;}
.feat-media img{width:100%;height:100%;object-fit:cover;}
.feat-card h3{font-size:19px;line-height:1.6;font-weight:600;padding-right:40px;}
.feat-card p{margin:10px 0 0;color:var(--ink-600);font-size:15px;line-height:1.8;}
.feat-a h3{font-size:21px;}
.feat-foot{margin-top:auto;padding-top:16px;}

/* 场景演示 */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:44px;}
.scene-media{border-radius:16px;padding:14px;background:var(--sand-100);border:1px solid var(--line);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);background:linear-gradient(140deg,var(--brand-700),var(--brand-900));}
.steps{position:relative;}
.step{position:relative;padding:0 0 30px 62px;}
.step:last-child{padding-bottom:0;}
.step-num{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;z-index:2;}
.step::before{content:"";position:absolute;left:19px;top:46px;bottom:2px;width:2px;background:var(--line);}
.step:last-child::before{display:none;}
.step h3{font-size:17px;line-height:1.6;font-weight:600;}
.step p{margin:6px 0 0;color:var(--ink-600);font-size:14.5px;line-height:1.78;}
.scene-cta{margin-top:8px;}

/* 社会认同 */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;padding-bottom:38px;border-bottom:1px solid var(--line);}
.metric-num{font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--brand-900);line-height:1.2;}
.metric-num small{font-size:14px;font-weight:600;color:var(--ink-600);margin-left:6px;}
.metric-label{margin-top:6px;color:var(--ink-600);font-size:14px;}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px;}
.quote-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:box-shadow .24s var(--ease),transform .24s var(--ease);}
.quote-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.quote-mark{font-size:22px;color:var(--accent-500);line-height:1;margin-bottom:10px;}
.quote-card p{font-size:15px;line-height:1.85;color:var(--ink-600);}
.quote-author{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.quote-name{font-size:14.5px;font-weight:600;color:var(--ink-900);line-height:1.4;}
.quote-role{font-size:12.5px;color:var(--ink-400);line-height:1.5;}

/* 最新信息列表 */
.news-wrap{max-width:900px;margin:40px auto 0;}
.news-row{display:grid;grid-template-columns:76px 1fr;gap:22px;padding:22px 16px;border-bottom:1px solid var(--line);border-radius:12px;color:inherit;transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);}
.news-row:hover{background:#fff;transform:translate(2px,-2px);box-shadow:var(--sh-1);color:inherit;}
.nd{background:var(--brand-100);color:var(--brand-700);border-radius:10px;text-align:center;padding:8px 4px;height:fit-content;}
.nd-day{display:block;font-size:22px;font-weight:700;line-height:1.2;}
.nd-ym{display:block;font-size:11.5px;font-weight:500;color:var(--brand-500);line-height:1.4;}
.news-body{min-width:0;}
.news-title{font-size:17.5px;line-height:1.6;font-weight:600;margin:8px 0 0;color:var(--ink-900);}
.news-row:hover .news-title{color:var(--brand-700);}
.news-summary{margin:8px 0 0;font-size:14.5px;line-height:1.78;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-more{margin-top:10px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.news-empty{border:1.5px dashed var(--line);border-radius:var(--r-card);padding:44px 24px;text-align:center;background:#fff;}
.news-empty p{color:var(--ink-600);font-size:15.5px;margin-bottom:18px;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;margin-top:44px;align-items:start;}
.faq-side p{color:var(--ink-600);font-size:15.5px;margin-top:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:box-shadow .22s var(--ease),border-color .22s var(--ease);}
.faq-item:hover{border-color:#d5cdbf;box-shadow:var(--sh-1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 24px;background:none;border:0;text-align:left;font-size:16px;font-weight:500;color:var(--ink-900);cursor:pointer;line-height:1.6;}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.faq-icon::before{top:8px;left:0;right:0;height:2px;}
.faq-icon::after{left:8px;top:0;bottom:0;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a-inner{padding:0 24px 18px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* 结尾 CTA */
.cta-wrap{padding:0 0 88px;}
.cta-block{position:relative;overflow:hidden;background:var(--brand-900);border-radius:20px;padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;}
.cta-block::after{content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(217,102,61,.28),transparent 68%);}
.cta-block h2{color:#fff;font-size:clamp(22px,2.2vw,30px);line-height:1.45;position:relative;z-index:2;border:0;padding:0;}
.cta-block p{color:rgba(255,255,255,.76);margin:12px 0 0;font-size:15.5px;max-width:34em;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;flex-shrink:0;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;}
.brand-footer{color:#fff;}
.brand-footer:hover{color:#fff;}
.brand-footer .brand-tag{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.26);color:#fff;}
.footer-brand p{margin:18px 0 0;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:26em;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{font-size:12.5px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.8);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col li{margin-bottom:2px;}
.footer-col a{display:inline-block;line-height:34px;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{margin-top:48px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.52);}
.footer-bottom p{margin:0;}

/* 移动端固定转化条 */
.mobile-bar{display:none;}
body{padding-bottom:0;}

/* 响应式 */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-block;}
  .mobile-panel{display:block;}
  .nav-actions .btn-sm{display:none;}
  .nav-search{display:none;}
  .brand{margin-right:auto;}
  .hero{padding:130px 0 120px;}
  .section{padding:64px 0;}
  .feature-grid{grid-template-columns:repeat(12,1fr);}
  .feat-a{grid-column:span 12;}
  .feat-b,.feat-c{grid-column:span 6;}
  .scene-grid{grid-template-columns:1fr;gap:36px;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .quotes{grid-template-columns:1fr 1fr;}
  .metrics{grid-template-columns:repeat(3,1fr);gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:44px 32px;}
  .cta-wrap{padding-bottom:64px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .nav-inner{padding:0 16px;height:60px;}
  .mobile-panel{top:60px;}
  .hero{padding:112px 0 104px;}
  .hero-sub{font-size:16px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{width:100%;}
  .hero-points{gap:8px 18px;font-size:13px;}
  .trust-wrap{margin-top:-40px;}
  .trust-bar{grid-template-columns:repeat(2,1fr);}
  .trust-cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
  .trust-cell:nth-child(2n){border-right:0;}
  .trust-cell:nth-child(3),.trust-cell:nth-child(4){border-bottom:0;}
  .section{padding:48px 0;}
  .feat-b,.feat-c{grid-column:span 12;}
  .quotes{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;gap:20px;padding-bottom:28px;}
  .news-row{grid-template-columns:64px 1fr;gap:16px;padding:18px 12px;}
  .nd-day{font-size:19px;}
  .faq-q{padding:14px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 16px;}
  .cta-block{padding:36px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 0;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:98;background:rgba(255,255,255,.97);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:10px 16px;align-items:center;justify-content:space-between;gap:12px;box-shadow:0 -8px 24px -20px rgba(12,43,38,.5);}
  .mobile-bar span{font-size:13px;color:var(--ink-600);line-height:1.4;}
  .mobile-bar .btn{height:40px;padding:0 18px;font-size:14px;}
  body{padding-bottom:76px;}
}
@media (max-width:479px){
  .brand-mark{font-size:17px;}
  .brand-tag{font-size:10.5px;padding:3px 8px;}
  .hero h1{font-size:27px;}
  .sec-title{font-size:21px;}
  .cta-block h2{font-size:21px;}
  .news-more{font-size:13px;}
}

/* roulang page: article */
:root{
  --brand-900:#0C2B26;
  --brand-700:#14554A;
  --brand-500:#1E6E5F;
  --brand-100:#E4EEEA;
  --accent-500:#D9663D;
  --accent-600:#C2562F;
  --accent-100:#FBEAE2;
  --sand-50:#F7F5F1;
  --sand-100:#EFE9DF;
  --ink-900:#16211D;
  --ink-600:#55635D;
  --ink-400:#8A9791;
  --line:#E3DDD2;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(12,43,38,.04), 0 8px 24px -16px rgba(12,43,38,.18);
  --shadow-2:0 14px 34px -18px rgba(12,43,38,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1180px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--sand-50);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-500);}
button{font-family:inherit;font-size:inherit;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent-500);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.nav-links,.mobile-nav,.footer-col ul,.footer-tags,.breadcrumb,.meta-row{
  list-style:none;margin:0;padding:0;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 10px 30px -24px rgba(12,43,38,.8);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 28px -22px rgba(12,43,38,.65);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  font-size:20px;font-weight:800;letter-spacing:.01em;color:#fff;
  transition:color .24s var(--ease);
}
.brand-tag{
  font-size:11px;line-height:1;font-weight:600;
  padding:5px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.42);
  color:rgba(255,255,255,.9);
  white-space:nowrap;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled .brand-mark{color:var(--ink-900);}
.site-header.is-scrolled .brand-tag{color:var(--brand-700);border-color:rgba(20,85,74,.35);}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:14.5px;font-weight:500;color:rgba(255,255,255,.88);
  border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14);}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent-500);border-radius:2px;
}
.site-header.is-scrolled .nav-link{color:var(--ink-600);}
.site-header.is-scrolled .nav-link:hover{color:var(--brand-700);background:rgba(20,85,74,.08);}
.site-header.is-scrolled .nav-link.is-active{color:var(--brand-700);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;cursor:pointer;
  color:#fff;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.28);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.22);}
.site-header.is-scrolled .icon-btn{background:#fff;border-color:var(--line);color:var(--ink-600);}
.site-header.is-scrolled .icon-btn:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;
  width:44px;height:44px;border-radius:10px;cursor:pointer;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.28);
  color:#fff;transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-toggle span{display:block;width:19px;height:2px;border-radius:2px;background:currentColor;margin:2.5px 0;}
.site-header.is-scrolled .nav-toggle{background:#fff;border-color:var(--line);color:var(--ink-900);}
.mobile-panel{
  display:none;
  position:absolute;top:100%;left:0;right:0;
  background:rgba(255,255,255,.98);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 28px 44px -32px rgba(12,43,38,.6);
  padding:10px 20px 22px;
}
.mobile-panel.is-open{display:block;}
.mobile-link{
  display:block;padding:0 4px;line-height:48px;
  font-size:15.5px;color:var(--ink-900);font-weight:500;
  border-bottom:1px solid var(--line);
}
.mobile-link:hover{color:var(--brand-700);}
.mobile-cta{width:100%;margin-top:18px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(217,102,61,.65);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(217,102,61,.7);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline:hover{background:rgba(20,85,74,.08);color:var(--brand-700);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:130px 0 56px;
  color:#fff;
  background-color:var(--brand-900);
  background-image:
    linear-gradient(158deg,rgba(12,43,38,.95) 0%,rgba(12,43,38,.82) 52%,rgba(20,85,74,.9) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:rgba(255,255,255,.68);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{opacity:.45;}
.breadcrumb .current{color:#fff;}
.article-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;margin-bottom:18px;
}
.article-title{
  font-size:clamp(26px,2.8vw,36px);
  line-height:1.4;font-weight:700;
  color:#fff;max-width:920px;margin:0 0 20px;
  letter-spacing:.005em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;
  font-size:14px;color:rgba(255,255,255,.76);
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:16px;max-width:920px;
}
.meta-row li{display:inline-flex;align-items:center;gap:8px;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);}

/* ============ 正文 ============ */
.article-main{padding:56px 0 88px;}
.article-wrap{
  max-width:820px;margin:0 auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:48px 56px;
}
.article-body{
  font-size:17px;line-height:1.9;color:var(--ink-900);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:clamp(20px,1.8vw,26px);line-height:1.5;font-weight:700;
  margin:40px 0 16px;padding-left:12px;
  border-left:4px solid var(--accent-500);
}
.article-body h3{
  font-size:19px;line-height:1.6;font-weight:600;
  margin:28px 0 12px;color:var(--brand-700);
}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--brand-700);}
.article-body ul,.article-body ol{
  margin:0 0 1.1em;padding-left:1.5em;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 .45em;line-height:1.85;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:var(--sand-100);
  border-left:3px solid var(--brand-700);
  border-radius:10px;
  color:var(--ink-600);
  font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius-img);
  margin:26px auto;
  box-shadow:var(--shadow-1);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:12.5px;line-height:1.6;color:var(--ink-400);
  text-align:center;margin-top:10px;
}
.article-body a{
  color:var(--brand-700);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body a:hover{color:var(--accent-600);}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:15px;line-height:1.7;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.article-body tr:nth-child(even) td{background:#FCFBF9;}
.article-body hr{
  border:0;border-top:1px solid var(--line);margin:32px 0;
}
.article-body code{
  background:var(--sand-100);
  padding:2px 6px;border-radius:6px;
  font-size:.92em;
}
.article-body strong{font-weight:700;color:var(--ink-900);}

/* ============ 空状态 ============ */
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:#FCFBF9;
}
.empty-state h2{
  font-size:22px;margin:0 0 12px;
  padding-left:0;border-left:0;
}
.empty-state p{
  color:var(--ink-600);font-size:15.5px;
  max-width:440px;margin:0 auto 24px;
}

/* ============ 返回入口 ============ */
.article-foot{
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.article-foot .label{
  font-size:13.5px;color:var(--ink-400);
  margin-right:auto;
}

/* ============ 相关推荐 ============ */
.related{padding:0 0 88px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;
}
.section-title{
  font-size:clamp(22px,2vw,28px);
  line-height:1.5;font-weight:700;
  padding-left:12px;border-left:4px solid var(--accent-500);
}
.section-sub{
  font-size:14.5px;color:var(--ink-600);
  margin:10px 0 0;padding-left:16px;
}
.section-more{
  font-size:14px;font-weight:600;color:var(--brand-700);
  white-space:nowrap;
}
.section-more:hover{color:var(--accent-600);text-decoration:underline;text-underline-offset:4px;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-thumb{
  display:block;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-900));
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;line-height:1;
}
.post-body h3{
  font-size:17px;line-height:1.6;font-weight:600;margin:0;
}
.post-body h3 a{color:var(--ink-900);}
.post-body h3 a:hover{color:var(--brand-700);}
.post-time{font-size:12.5px;color:var(--ink-400);margin:0;}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:#fff;border:none;cursor:pointer;
  box-shadow:0 12px 26px -16px rgba(12,43,38,.8);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background .2s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--brand-700);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.brand-footer{margin-bottom:4px;}
.brand-footer .brand-mark{color:#fff;}
.brand-footer .brand-tag{border-color:rgba(255,255,255,.34);color:rgba(255,255,255,.86);}
.footer-brand p{
  margin:16px 0 20px;
  font-size:14px;line-height:1.85;
  color:rgba(255,255,255,.66);
  max-width:360px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12.5px;line-height:1;
  padding:6px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.7);
}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:600;
  margin:0 0 16px;
}
.footer-col li{line-height:34px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  padding:22px 0 30px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-wrap{padding:36px 32px;}
  .article-hero{padding:118px 0 48px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-inner{height:60px;gap:12px;}
  .brand-mark{font-size:17px;}
  .brand-tag{font-size:10px;padding:4px 8px;}
  .nav-actions .btn-sm{display:none;}
  .article-hero{padding:100px 0 40px;}
  .article-title{font-size:24px;line-height:1.45;}
  .meta-row{gap:14px;font-size:13px;}
  .article-main{padding:36px 0 56px;}
  .article-wrap{padding:28px 20px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:17.5px;}
  .related{padding-bottom:56px;}
  .related-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-foot{flex-direction:column;align-items:stretch;}
  .article-foot .label{margin-right:0;}
  .article-foot .btn{width:100%;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:479px){
  .brand-tag{display:none;}
  .btn{height:44px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C2B26;
  --brand-700:#14554A;
  --brand-500:#1E6E5F;
  --brand-100:#E4EEEA;
  --accent-500:#D9663D;
  --accent-600:#C2562F;
  --accent-100:#FBEAE2;
  --sand-50:#F7F5F1;
  --sand-100:#EFE9DF;
  --ink-900:#16211D;
  --ink-600:#55635D;
  --ink-400:#8A9791;
  --line:#E3DDD2;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(12,43,38,.04),0 8px 24px -16px rgba(12,43,38,.18);
  --shadow-2:0 14px 34px -18px rgba(12,43,38,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--sand-50);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.narrow{max-width:820px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 8px 24px -20px rgba(0,0,0,.5);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.nav-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.15;
  flex-shrink:0;
}
.brand-mark{
  font-size:19px;
  font-weight:700;
  color:#fff;
  letter-spacing:.01em;
  transition:color .24s var(--ease);
}
.brand-tag{
  font-size:11.5px;
  line-height:1.5;
  color:rgba(255,255,255,.78);
  letter-spacing:.05em;
  transition:color .24s var(--ease);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:10px;
  font-size:15px;
  color:rgba(255,255,255,.86);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-link:hover{background:rgba(255,255,255,.14);color:#fff;}
.nav-link.is-active{color:#fff;font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-search{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.34);
  background:transparent;
  color:#fff;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.nav-search:hover{background:rgba(255,255,255,.16);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.38);
  background:transparent;
  color:#fff;
  cursor:pointer;
  transition:background .22s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.16);}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -24px rgba(12,43,38,.45);
}
.site-header.is-scrolled .brand-mark{color:var(--ink-900);}
.site-header.is-scrolled .brand-tag{color:var(--brand-700);}
.site-header.is-scrolled .nav-link{color:var(--ink-600);}
.site-header.is-scrolled .nav-link:hover{background:var(--brand-100);color:var(--brand-700);}
.site-header.is-scrolled .nav-link.is-active{color:var(--brand-700);}
.site-header.is-scrolled .nav-search{color:var(--ink-900);border-color:var(--line);}
.site-header.is-scrolled .nav-search:hover{background:var(--brand-100);}
.site-header.is-scrolled .nav-toggle{color:var(--ink-900);border-color:var(--line);}

/* 移动端面板 */
.mobile-panel{
  position:fixed;
  top:60px;left:0;right:0;
  z-index:99;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  padding:8px 16px 20px;
  box-shadow:0 24px 44px -30px rgba(12,43,38,.55);
  opacity:0;
  transform:translateY(-10px);
  pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.mobile-panel.is-open{opacity:1;transform:none;pointer-events:auto;}
.mobile-panel .m-link{
  display:flex;
  align-items:center;
  height:48px;
  font-size:15.5px;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-panel .m-link:hover{color:var(--brand-700);}
.mobile-panel .m-link.is-active{color:var(--brand-700);font-weight:600;}
.mobile-panel .btn{width:100%;margin-top:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:var(--accent-500);
  color:#fff;
  box-shadow:0 6px 18px -10px rgba(217,102,61,.65);
}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-secondary{
  background:transparent;
  border-color:var(--brand-700);
  color:var(--brand-700);
}
.btn-secondary:hover{background:rgba(20,85,74,.08);color:var(--brand-700);transform:translateY(-1px);}
.btn-secondary:active{transform:none;}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-lg{height:50px;padding:0 28px;font-size:16px;}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  isolation:isolate;
  min-height:340px;
  display:flex;
  align-items:flex-end;
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.42;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(12,43,38,.95) 0%,rgba(12,43,38,.82) 48%,rgba(12,43,38,.58) 100%);
  z-index:-1;
}
.page-hero-inner{
  width:100%;
  padding-top:calc(var(--nav-h) + 64px);
  padding-bottom:68px;
  color:#fff;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  line-height:1.6;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.84);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#fff;}
.page-hero h1{
  color:#fff;
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:.005em;
  margin:0 0 16px;
  max-width:900px;
}
.page-hero-sub{
  color:rgba(255,255,255,.84);
  font-size:16px;
  line-height:1.85;
  max-width:740px;
  margin:0;
}

/* ============ 板块与标题 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--sand-100);}
.section-flush{padding-top:0;}
.section h2{
  position:relative;
  font-size:clamp(22px,2vw,28px);
  line-height:1.5;
  font-weight:700;
  color:var(--ink-900);
  margin:0 0 24px;
  padding-left:14px;
}
.section h2::before{
  content:"";
  position:absolute;
  left:0;top:.24em;bottom:.24em;
  width:4px;
  border-radius:2px;
  background:var(--accent-500);
}
.section-lead{
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-600);
  margin:0 0 18px;
}
.section-lead strong{color:var(--ink-900);font-weight:600;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.sec-head h2{margin-bottom:0;}
.sec-head .sec-note{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-400);
  margin:0;
  max-width:420px;
  text-align:right;
}

/* ============ 信息卡网格 ============ */
.info-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.info-card:hover{box-shadow:var(--shadow-2);border-color:#D5CEC0;}
.info-icon{
  width:46px;height:46px;
  border-radius:12px;
  background:var(--brand-100);
  color:var(--brand-700);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  flex-shrink:0;
}
.info-card h3{
  font-size:18px;
  line-height:1.6;
  font-weight:600;
  color:var(--ink-900);
  margin:0 0 10px;
}
.info-card p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
  margin:0 0 18px;
}
.link-arrow{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand-700);
}
.link-arrow svg{transition:transform .22s var(--ease);}
.link-arrow:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 步骤条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-1);
}
.step-num{
  width:44px;height:44px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--accent-100);
  color:var(--accent-600);
  font-size:17px;
  font-weight:700;
  margin-bottom:16px;
}
.step h3{
  font-size:17px;
  line-height:1.6;
  font-weight:600;
  color:var(--ink-900);
  margin:0 0 8px;
}
.step p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-600);
  margin:0;
}

/* ============ 图文说明区 ============ */
.figure-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.figure-frame{
  background:var(--sand-100);
  border-radius:20px;
  padding:14px;
  border:1px solid var(--line);
}
.figure-frame img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
  background:linear-gradient(135deg,var(--brand-700),var(--brand-900));
}
.figure-cap{
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-400);
  margin:12px 4px 0;
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  line-height:1.8;
  color:var(--ink-600);
}
.check-dot{
  flex-shrink:0;
  width:22px;height:22px;
  margin-top:4px;
  border-radius:50%;
  background:var(--brand-100);
  color:var(--brand-700);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
}

/* ============ 结尾转化区 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  border-radius:24px;
  padding:56px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  isolation:isolate;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.16;
  z-index:-1;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(21px,1.9vw,26px);
  line-height:1.5;
  font-weight:700;
  margin:0 0 12px;
  padding:0;
}
.cta-band h2::before{display:none;}
.cta-band p{
  color:rgba(255,255,255,.78);
  font-size:15.5px;
  line-height:1.85;
  margin:0;
  max-width:560px;
}
.cta-actions{display:flex;gap:12px;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.brand-footer .brand-mark{font-size:18px;color:#fff;}
.brand-footer .brand-tag{color:rgba(255,255,255,.7);}
.footer-brand p{
  font-size:14.5px;
  line-height:1.85;
  margin:16px 0 18px;
  max-width:340px;
  color:rgba(255,255,255,.72);
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12.5px;
  line-height:1.6;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.8);
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
}
.footer-col li{margin-bottom:8px;}
.footer-col a{
  display:inline-block;
  font-size:14.5px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:24px;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(255,255,255,.55);
}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .info-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .figure-row{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px;flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-actions{width:100%;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .sec-head .sec-note{text-align:left;max-width:100%;}
}
@media (max-width:767px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-sm{display:none;}
  .nav-inner{height:60px;gap:14px;}
  .mobile-panel{top:60px;}
  .section{padding:48px 0;}
  .page-hero{min-height:300px;}
  .page-hero-inner{padding-top:calc(60px + 48px);padding-bottom:48px;}
  .page-hero-sub{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .info-grid{grid-template-columns:1fr;gap:16px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .info-card{padding:22px 20px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-brand p{max-width:100%;}
  .site-footer{padding:48px 0 24px;}
}
@media (max-width:479px){
  body{font-size:16px;}
  .page-hero h1{font-size:24px;}
  .btn-lg{height:46px;padding:0 20px;font-size:15px;}
}
@media (min-width:768px){
  .mobile-panel{display:none;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0C2B26;
  --brand-700:#14554A;
  --brand-500:#1E6E5F;
  --brand-100:#E4EEEA;
  --accent-500:#D9663D;
  --accent-600:#C2562F;
  --accent-100:#FBEAE2;
  --sand-50:#F7F5F1;
  --sand-100:#EFE9DF;
  --card:#FFFFFF;
  --ink-900:#16211D;
  --ink-600:#55635D;
  --ink-400:#8A9791;
  --line:#E3DDD2;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(12,43,38,.04),0 8px 24px -16px rgba(12,43,38,.18);
  --shadow-2:0 14px 34px -18px rgba(12,43,38,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--sand-50);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-700);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-500)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.005em;line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
li{margin-bottom:.4em}
ul.unstyled{list-style:none;padding-left:0;margin:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:var(--space-section) 0}
.section--sand{background:var(--sand-100)}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.22);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.55);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 24px -20px rgba(12,43,38,.5);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;line-height:1;min-width:0}
.brand-mark{
  font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em;
  transition:color .24s var(--ease);
}
.brand-tag{
  font-size:11.5px;font-weight:500;color:rgba(255,255,255,.85);
  border:1px solid rgba(255,255,255,.42);
  border-radius:999px;padding:3px 9px;line-height:1.2;white-space:nowrap;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.is-scrolled .brand-mark{color:var(--ink-900)}
.is-scrolled .brand-tag{color:var(--brand-700);border-color:rgba(20,85,74,.32)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.92);
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.14)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.18)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent-500);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link.is-active::after{transform:scaleX(1)}
.is-scrolled .nav-link{color:var(--ink-600)}
.is-scrolled .nav-link:hover{color:var(--brand-700);background:var(--brand-100)}
.is-scrolled .nav-link.is-active{color:var(--brand-700);background:var(--brand-100)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.12);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.is-scrolled .nav-toggle{border-color:var(--line);background:#fff}
.is-scrolled .nav-toggle span{background:var(--ink-900)}
.nav-toggle:hover{background:rgba(255,255,255,.22)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  display:none;position:fixed;top:60px;left:0;right:0;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 20px 40px -24px rgba(12,43,38,.4);
  padding:12px 20px 20px;transform:translateY(-12px);opacity:0;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
  max-height:calc(100vh - 60px);overflow-y:auto;
}
.mobile-panel.is-open{display:block;transform:translateY(0);opacity:1}
.mobile-panel a.m-link{
  display:flex;align-items:center;height:48px;font-size:15.5px;font-weight:500;
  color:var(--ink-900);border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link:hover{color:var(--brand-700)}
.mobile-panel a.m-link.is-active{color:var(--brand-700)}
.mobile-panel .btn{width:100%;margin-top:16px}
body.is-locked{overflow:hidden}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  text-decoration:none;transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(217,102,61,.65)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-secondary{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-secondary:hover{background:rgba(20,85,74,.08);color:var(--brand-700)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);
  transition:color .22s var(--ease),gap .22s var(--ease);
}
.text-link:hover{color:var(--brand-500);gap:10px;text-decoration:underline;text-underline-offset:3px}

/* ===== 徽章/标签 ===== */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;line-height:1;
}
.badge-accent{background:var(--accent-100);color:var(--accent-600)}

/* ===== 内页横幅 ===== */
.page-banner{
  position:relative;
  min-height:280px;
  display:flex;align-items:center;
  padding:120px 0 56px;
  background-color:var(--brand-900);
  background-size:cover;background-position:center;
  color:#fff;
  isolation:isolate;
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(12,43,38,.94),rgba(12,43,38,.72) 55%,rgba(20,85,74,.82));
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.72);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:#fff;font-weight:500}
.page-banner h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.35;font-weight:700;
  max-width:820px;margin-bottom:14px;
}
.page-banner .banner-sub{
  max-width:720px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.82);margin:0;
}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ===== 锚点两栏 ===== */
.anchor-layout{margin-top:0}
.anchor-aside{position:relative}
.anchor-nav{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.anchor-nav .anchor-title{
  font-size:12.5px;font-weight:600;color:var(--ink-400);
  letter-spacing:.02em;margin-bottom:12px;
}
.anchor-nav ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.anchor-nav a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:14.5px;color:var(--ink-600);
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.anchor-nav a i{
  font-style:normal;font-size:11.5px;font-weight:700;color:var(--brand-500);
  background:var(--brand-100);border-radius:999px;min-width:22px;height:22px;
  display:inline-flex;align-items:center;justify-content:center;
}
.anchor-nav a:hover{background:var(--brand-100);color:var(--brand-700);transform:translateX(2px)}
.anchor-nav .anchor-tip{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:12.5px;line-height:1.7;color:var(--ink-400);
}
.content-col{display:flex;flex-direction:column;gap:24px}

/* ===== 内容分节 ===== */
.doc-block{
  scroll-margin-top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.doc-block h2{
  font-size:clamp(20px,1.9vw,25px);line-height:1.5;margin-bottom:16px;
  padding-left:12px;border-left:4px solid var(--accent-500);
}
.doc-block h3{font-size:17.5px;font-weight:600;margin:22px 0 10px;color:var(--ink-900)}
.doc-block p{font-size:16px;line-height:1.9;color:var(--ink-600)}
.doc-block strong{color:var(--ink-900);font-weight:600}
.check-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}
.check-list li{
  position:relative;padding-left:26px;font-size:15.5px;line-height:1.85;color:var(--ink-600);margin:0;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:14px;height:14px;border-radius:50%;
  background:var(--brand-100);border:2px solid var(--brand-500);
}
.step-list{list-style:none;padding:0;margin:18px 0 0;counter-reset:step}
.step-list li{
  position:relative;padding-left:46px;margin-bottom:18px;font-size:15.5px;line-height:1.8;color:var(--ink-600);
}
.step-list li:last-child{margin-bottom:0}
.step-list li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;
  background:var(--accent-100);color:var(--accent-600);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.step-list li b{display:block;color:var(--ink-900);font-weight:600;margin-bottom:2px}
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
.mini-card{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d5ccbc}
.mini-card img{width:100%;height:132px;object-fit:cover;border-radius:0}
.mini-card .mini-body{padding:16px 18px 18px}
.mini-card h3{font-size:16px;margin:0 0 6px;font-weight:600}
.mini-card p{font-size:14px;line-height:1.75;color:var(--ink-600);margin:0}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--sand-100);color:var(--ink-600);font-size:13px;font-weight:500;
}

/* ===== FAQ ===== */
.faq-wrap{margin-top:8px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 24px;min-height:56px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:500;color:var(--ink-900);line-height:1.6;
}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:var(--brand-100);transition:background .22s var(--ease),transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{background:var(--accent-100);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::before{background:var(--accent-600)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a .faq-a-inner{padding:0 24px 18px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.faq-item.is-open .faq-q{color:var(--brand-700)}

/* ===== CTA ===== */
.cta-block{
  position:relative;background:var(--brand-900);color:#fff;border-radius:20px;
  padding:56px 48px;overflow:hidden;isolation:isolate;
}
.cta-block::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(760px 320px at 88% 10%,rgba(30,110,95,.55),transparent 68%),
             radial-gradient(480px 260px at 4% 92%,rgba(217,102,61,.28),transparent 70%);
}
.cta-block h2{font-size:clamp(21px,2.2vw,28px);line-height:1.45;margin-bottom:12px;padding-left:0;border:0}
.cta-block p{color:rgba(255,255,255,.78);font-size:15.5px;line-height:1.85;max-width:640px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand .brand-footer{display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.brand-footer .brand-mark{color:#fff;font-size:19px}
.brand-footer .brand-tag{color:rgba(255,255,255,.85);border-color:rgba(255,255,255,.34)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  font-size:12.5px;color:rgba(255,255,255,.76);
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:0}
.footer-col a{
  display:inline-block;line-height:34px;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .22s var(--ease);
}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--space-section:64px}
  .nav-links{display:none}
  .header-actions .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  .anchor-nav{position:static;padding:14px}
  .anchor-nav .anchor-title{display:none}
  .anchor-nav ul{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .anchor-nav li{flex:0 0 auto}
  .anchor-nav a{white-space:nowrap;background:var(--sand-100);padding:8px 12px;font-size:14px}
  .anchor-nav .anchor-tip{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .mini-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--space-section:48px}
  .container{padding:0 16px}
  .header-inner{height:60px;gap:12px}
  .brand-mark{font-size:17px}
  .brand-tag{font-size:10.5px;padding:2px 7px}
  .mobile-panel{top:60px}
  .page-banner{padding:100px 0 44px;min-height:240px}
  .doc-block{padding:22px}
  .doc-block h2{font-size:20px;padding-left:10px}
  .cta-block{padding:36px 22px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{padding:0 18px;font-size:15.5px}
  .faq-a .faq-a-inner{padding:0 18px 16px}
  .step-list li{padding-left:42px}
}
@media (max-width:479px){
  body{font-size:15.5px}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .banner-meta .badge{font-size:12px}
  .mini-card img{height:120px}
}