/* roulang page: index */
:root{
  --ink:#123B33;
  --ink-deep:#0C2A25;
  --amber:#E0863A;
  --amber-hover:#C86F27;
  --amber-soft:#E9C9A8;
  --bg:#F5F1E9;
  --bg-alt:#EFEAE0;
  --card:#FFFFFF;
  --text:#1B211E;
  --text-2:#5C6660;
  --text-3:#8A9089;
  --line:#E2DCD0;
  --shadow-1:0 1px 2px rgba(18,59,51,.06);
  --shadow-2:0 10px 28px rgba(18,59,51,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --s1:8px;--s2:12px;--s3:16px;--s4:24px;--s5:32px;--s6:48px;--s7:72px;--s8:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--amber-hover)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
h1{font-size:clamp(30px,3.4vw,40px);line-height:1.3;font-weight:700;letter-spacing:.5px}
h2{font-size:26px;line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
small,.small{font-size:13px;line-height:1.6}

/* 布局骨架 */
.shell{display:flex;align-items:flex-start;min-height:100vh}
.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:var(--s7) 0}
.section--alt{background:var(--bg-alt)}

/* 左侧竖向导航 */
.sidebar{
  width:240px;flex:0 0 240px;position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;
  padding:28px 20px 22px;
  color:#D8E4DF;
  background-color:var(--ink);
  background-image:
    radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(180deg,#123B33 0%,#0C2A25 100%);
  background-size:14px 14px,100% 100%;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:30px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--amber);color:#1B211E;
}
.brand-text{min-width:0}
.brand-name{display:block;font-size:17px;font-weight:700;color:#FFFFFF;line-height:1.3;letter-spacing:.2px}
.brand-sub{display:block;font-size:12px;line-height:1.6;color:#9DB4AC}
.side-nav{margin-bottom:24px}
.side-nav li+li{margin-top:6px}
.side-nav a{
  position:relative;display:block;padding:11px 14px 11px 16px;
  border-radius:10px;font-size:15px;color:#D8E4DF;
  transition:background .2s ease,color .2s ease;
}
.side-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--amber);
  transition:height .2s ease;
}
.side-nav a:hover{color:#FFFFFF;background:rgba(255,255,255,.07)}
.side-nav a:hover::before{height:18px}
.side-nav a.is-active{color:var(--amber);background:rgba(224,134,58,.15);font-weight:600}
.side-nav a.is-active::before{height:22px}
.side-foot{margin-top:auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;line-height:1.8;color:#9DB4AC}
.side-foot a{color:#C9D6D1;text-decoration:underline;text-underline-offset:3px}
.side-foot a:hover{color:#FFFFFF}
.side-foot p+p{margin-top:6px}

/* 移动端顶栏与抽屉 */
.mobile-head{
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 18px;background:#FFFFFF;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;
}
.mobile-brand{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.menu-toggle{
  width:44px;height:44px;border:1px solid var(--line);background:#FFFFFF;
  border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-scrim{display:none;position:fixed;inset:0;background:rgba(12,42,37,.45);z-index:70}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--amber);color:#1B211E;border-color:var(--amber)}
.btn-primary:hover{background:var(--amber-hover);border-color:var(--amber-hover);color:#1B211E;transform:translateY(-1px);box-shadow:0 8px 20px rgba(200,111,39,.24)}
.btn-ghost{background:#FFFFFF;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(18,59,51,.08);color:var(--ink);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px}
.btn-link:hover{color:var(--amber-hover);border-bottom-color:var(--amber-hover)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--bg-alt);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.2px;white-space:nowrap;
}
.badge--amber{background:rgba(224,134,58,.18);color:#8A4E13}

/* 首屏 */
.hero{padding:64px 0 56px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(224,134,58,.16),transparent 68%);pointer-events:none;
}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.4px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px}
.hero h1{margin:18px 0 16px;max-width:15em}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13px;color:var(--text-3)}
.hero-meta li{display:flex;align-items:center;gap:7px}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);flex:0 0 6px}
.hero-visual{
  position:relative;border-radius:18px;overflow:hidden;min-height:400px;
  box-shadow:var(--shadow-2);background:var(--ink);
}
.hero-visual img{width:100%;height:100%;min-height:400px;object-fit:cover;position:absolute;inset:0}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,59,51,.42) 0%,rgba(18,59,51,.72) 100%);
}
.hero-visual .ring{
  position:absolute;right:26px;top:26px;width:110px;height:110px;border:1px solid rgba(255,255,255,.55);
  border-radius:50%;z-index:2;
}
.hero-visual .ring::after{
  content:"";position:absolute;inset:20px;border:1px dashed rgba(224,134,58,.85);border-radius:50%;
}
.hero-visual figcaption{
  position:absolute;left:26px;bottom:24px;right:26px;z-index:2;
  color:#F2F6F4;font-size:14px;line-height:1.7;
  border-left:3px solid var(--amber);padding-left:12px;
}

/* 要点横条 */
.points-strip{
  margin-top:-28px;position:relative;z-index:3;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
}
.points-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.point{display:flex;gap:14px;padding:24px}
.point+.point{border-left:1px solid var(--line)}
.point-icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(224,134,58,.16);color:#8A4E13;font-weight:700;font-size:14px;letter-spacing:.5px;
}
.point h3{font-size:16px;font-weight:600;margin-bottom:4px}
.point p{font-size:13.5px;line-height:1.75;color:var(--text-2)}

/* 板块标题 */
.section-head{max-width:38em;margin-bottom:36px}
.section-head h2{margin-bottom:12px;position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;border-radius:2px;background:var(--amber);
}
.section-head p{font-size:15px;line-height:1.85;color:var(--text-2)}

/* 故事区 */
.story-labels{display:flex;flex-direction:column;gap:12px;align-items:flex-start;padding-top:6px}
.story-note{font-size:13px;line-height:1.85;color:var(--text-3);max-width:15em}
.story-body p{font-size:16px;line-height:1.85;color:var(--text-2);max-width:36em}
.story-body p+p{margin-top:14px}
.story-figure{margin-top:28px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#FFFFFF;box-shadow:var(--shadow-1)}
.story-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.story-figure figcaption{padding:14px 18px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line)}

/* 非对称内容卡 */
.feature-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:24px}
.content-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.content-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5CDBD}
.content-card .thumb{overflow:hidden;background:var(--bg-alt)}
.content-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.2s ease}
.content-card:hover .thumb img{transform:scale(1.03)}
.content-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.content-card .body h3{font-size:19px;line-height:1.5;font-weight:600}
.content-card .body p{font-size:14px;line-height:1.8;color:var(--text-2)}
.content-card .foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.feature-main{grid-row:span 2}
.feature-main .thumb img{aspect-ratio:16/11}
.feature-main .body h3{font-size:22px}
.feature-main .body p{font-size:15px}
.feature-col{display:grid;grid-template-rows:1fr 1fr;gap:24px}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:rgba(18,59,51,.08);
  color:var(--ink);font-weight:700;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:13.5px;line-height:1.8;color:var(--text-2)}

/* 最新信息列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.post-card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D5CDBD}
.post-title{font-size:18px;line-height:1.55;font-weight:600;color:var(--ink)}
.post-link:hover .post-title{color:var(--amber-hover)}
.post-desc{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);margin-top:auto}
.empty-state{
  background:#FFFFFF;border:1px dashed #D5CDBD;border-radius:var(--r-card);
  padding:40px 24px;text-align:center;color:var(--text-2);font-size:15px;
}

/* 深色数据带 */
.band{
  background-color:var(--ink);
  background-image:
    radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(120deg,#123B33 0%,#0C2A25 100%);
  background-size:16px 16px,100% 100%;
  color:#E6EFEA;padding:64px 0;
}
.band .section-head h2{color:#FFFFFF}
.band .section-head p{color:#B9CBC4}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px}
.stat{padding:20px 18px;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);background:rgba(255,255,255,.04)}
.stat strong{display:block;font-size:30px;line-height:1.2;color:var(--amber);font-weight:700}
.stat span{display:block;font-size:13px;color:#B9CBC4;margin-top:6px}
.band-cols{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.band-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:26px}
.band-card h3{color:#FFFFFF;font-size:18px;margin-bottom:10px}
.band-card p{font-size:14px;line-height:1.85;color:#B9CBC4}
.quote{border-left:3px solid var(--amber);padding-left:16px;font-size:16px;line-height:1.85;color:#E6EFEA}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px}
.faq-aside h2{padding-left:18px;position:relative;margin-bottom:12px}
.faq-aside h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;border-radius:2px;background:var(--amber)}
.faq-aside p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:22em}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:18px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--ink)}
.faq-sign{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--amber);border-radius:2px;transition:transform .22s ease,opacity .22s ease;
}
.faq-sign::before{left:0;top:9px;width:20px;height:2px}
.faq-sign::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 0 20px;font-size:14.5px;line-height:1.85;color:var(--text-2);max-width:38em}

/* CTA */
.cta-panel{
  background-image:
    radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(120deg,#123B33 0%,#0C2A25 100%);
  background-size:16px 16px,100% 100%;
  color:#E6EFEA;border-radius:20px;padding:48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;
  box-shadow:var(--shadow-2);
}
.cta-panel h2{color:#FFFFFF;margin-bottom:12px}
.cta-panel p{font-size:15px;line-height:1.85;color:#B9CBC4}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{
  flex:1 1 200px;min-height:44px;padding:0 14px;border-radius:8px;
  border:1px solid rgba(255,255,255,.28);background:#FFFFFF;color:var(--text);
  font-size:15px;line-height:44px;
}
.subscribe-form input:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(224,134,58,.25)}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:#9DB4AC}

/* 页脚 */
.site-footer{background:var(--ink-deep);color:#C9D6D1;padding:56px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--amber)}
.footer-brand strong{color:#FFFFFF;font-size:17px;font-weight:700}
.site-footer h4{font-size:14px;font-weight:700;color:#FFFFFF;margin-bottom:14px;letter-spacing:.3px}
.site-footer p{font-size:13.5px;line-height:1.85;color:#A9BCB5}
.site-footer li+li{margin-top:9px}
.site-footer a{color:#C9D6D1;font-size:13.5px}
.site-footer a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:#8FA49C;
}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 32px}
  .sidebar{width:216px;flex-basis:216px}
  .feature-main .body h3{font-size:20px}
}
@media (max-width:1023px){
  .mobile-head{display:flex}
  .sidebar{
    position:fixed;top:0;left:0;height:100vh;width:280px;flex:none;
    transform:translateX(-100%);transition:transform .22s ease;z-index:80;
    box-shadow:0 12px 40px rgba(12,42,37,.30);
  }
  .sidebar.is-open{transform:translateX(0)}
  .nav-scrim.is-open{display:block}
  .container{padding:0 24px}
  .hero{padding:40px 0 44px}
  .hero-visual{min-height:320px;margin-top:28px}
  .hero-visual img{min-height:320px}
  .points-strip{margin-top:0}
  .points-grid{grid-template-columns:1fr}
  .point+.point{border-left:0;border-top:1px solid var(--line)}
  .feature-grid{grid-template-columns:1fr}
  .feature-main{grid-row:auto}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .band-cols{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .cta-panel{grid-template-columns:1fr;padding:34px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .section{padding:52px 0}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:44px 0}
  .section-head{margin-bottom:26px}
  .section-head h2{font-size:22px}
  h2{font-size:22px}
  .hero h1{max-width:none}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-panel{padding:26px 20px;border-radius:16px}
  .subscribe-form .btn{flex:1 1 100%}
  .story-figure img{aspect-ratio:16/10}
}
@media (max-width:519px){
  h1{font-size:26px}
  .brand-name{font-size:15px}
  .hero-visual{min-height:260px}
  .hero-visual img{min-height:260px}
  .hero-visual .ring{width:80px;height:80px;right:16px;top:16px}
  .hero-visual figcaption{left:16px;right:16px;bottom:16px;font-size:13px}
  .stat strong{font-size:24px}
  .content-card .body{padding:18px}
  .post-card{padding:18px}
}

/* roulang page: article */
:root{
  --ink:#123B33;
  --ink-deep:#0C2A25;
  --amber:#E0863A;
  --amber-deep:#C86F27;
  --amber-soft:#E9C9A8;
  --bg:#F5F1E9;
  --bg-soft:#EFEAE0;
  --card:#FFFFFF;
  --text:#1B211E;
  --muted:#5C6660;
  --faint:#8A9089;
  --line:#E2DCD0;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(18,59,51,.06);
  --sh-2:0 10px 28px rgba(18,59,51,.10);
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:24px;
  --space-5:32px;
  --space-6:48px;
  --space-7:72px;
  --space-8:96px;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease;}
a:hover{color:var(--amber-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
::selection{background:rgba(224,134,58,.28);}

/* ---------- Layout shell ---------- */
.page-shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;}

/* ---------- Sidebar ---------- */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#D8E4DF;display:flex;flex-direction:column;
  padding:28px 0 20px;overflow-y:auto;z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar-brand{
  display:flex;align-items:flex-start;gap:10px;
  padding:0 22px 22px;border-bottom:1px solid rgba(255,255,255,.10);
}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:rgba(224,134,58,.16);color:var(--amber);
  display:flex;align-items:center;justify-content:center;
}
.brand-text strong{display:block;font-size:17px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:.3px;}
.brand-text span{display:block;font-size:12px;line-height:1.6;color:rgba(216,228,223,.72);margin-top:3px;}
.side-nav{padding:18px 12px;flex:1;}
.side-nav ul{display:flex;flex-direction:column;gap:6px;}
.side-nav ul li a{
  position:relative;display:block;padding:11px 14px 11px 18px;
  font-size:15px;color:#D8E4DF;border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.side-nav ul li a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:transparent;transition:background-color .2s ease;
}
.side-nav ul li a:hover{color:#fff;background:rgba(255,255,255,.06);}
.side-nav ul li a:hover::before{background:var(--amber);}
.side-nav ul li a.is-active{
  color:var(--amber);background:rgba(224,134,58,.14);font-weight:600;
}
.side-nav ul li a.is-active::before{background:var(--amber);}
.sidebar-foot{
  padding:18px 22px 0;border-top:1px solid rgba(255,255,255,.10);
  font-size:12.5px;line-height:1.75;color:rgba(216,228,223,.66);
}
.sidebar-foot strong{display:block;color:#fff;font-size:13px;margin-bottom:6px;font-weight:600;}
.sidebar-foot a{color:rgba(216,228,223,.82);}
.sidebar-foot a:hover{color:#fff;text-decoration:underline;}
.sidebar-foot .record{display:block;margin-top:10px;color:rgba(216,228,223,.45);font-size:11.5px;}

/* ---------- Mobile topbar ---------- */
.topbar{display:none;}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(12,42,37,.45);
  z-index:55;opacity:0;transition:opacity .22s ease;
}
.drawer-mask.is-open{display:block;opacity:1;}

/* ---------- Article hero band ---------- */
.article-hero{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  padding:var(--space-6) 0 var(--space-5);
  position:relative;overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;border:1px solid rgba(18,59,51,.10);
  background:radial-gradient(circle at 30% 30%,rgba(224,134,58,.10),transparent 70%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:20px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--amber-deep);}
.crumbs .sep{color:var(--line);}
.crumbs .now{color:var(--ink);font-weight:500;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{
  font-size:clamp(30px,3.4vw,40px);
  line-height:1.3;font-weight:700;letter-spacing:.5px;
  color:var(--text);max-width:26em;position:relative;z-index:1;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:13px;color:var(--faint);position:relative;z-index:1;
}
.article-meta .badge{font-size:12.5px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--bg-soft);color:var(--ink);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
  border:1px solid rgba(18,59,51,.08);
}
.badge.is-amber{background:rgba(224,134,58,.14);color:var(--amber-deep);border-color:rgba(224,134,58,.22);}

/* ---------- Reading layout ---------- */
.reading-wrap{padding:var(--space-6) 0 var(--space-7);}
.reading-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 232px;
  gap:var(--space-6);align-items:start;
}
.article-panel{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:44px 48px 48px;
}
.article-body{max-width:38em;font-size:16px;line-height:1.85;color:var(--text);}
.article-body > * + *{margin-top:1.1em;}
.article-body p{margin:1.1em 0 0;color:#242C28;}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:700;color:var(--text);
  margin:40px 0 0;padding-top:6px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:-18px;top:14px;width:4px;height:22px;
  border-radius:2px;background:var(--amber);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink);margin:28px 0 0;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 0;}
.article-body ul,.article-body ol{margin:1.1em 0 0;padding-left:1.3em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.55em 0;line-height:1.9;color:#242C28;}
.article-body li::marker{color:var(--amber-deep);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--bg-soft);border-left:3px solid var(--amber);
  border-radius:0 10px 10px 0;color:var(--muted);font-size:15.5px;
}
.article-body blockquote p{margin:0;color:var(--muted);}
.article-body img{border-radius:var(--r-card);margin:1.6em 0;width:100%;height:auto;}
.article-body a{color:var(--ink);border-bottom:1px solid var(--amber-soft);}
.article-body a:hover{color:var(--amber-deep);border-bottom-color:var(--amber-deep);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14.5px;
  display:block;overflow-x:auto;white-space:nowrap;margin:1.6em 0;
  border:1px solid var(--line);border-radius:10px;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--bg-soft);color:var(--ink);font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}

/* TOC */
.toc-card{
  position:sticky;top:24px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:20px 18px;
}
.toc-card h2{font-size:13px;letter-spacing:1px;color:var(--faint);font-weight:600;margin-bottom:12px;}
.toc-card ol{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:12px;}
.toc-card ol li a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--muted);
  padding:6px 0;border-radius:4px;
}
.toc-card ol li a:hover{color:var(--amber-deep);}
.toc-card .toc-empty{font-size:13px;color:var(--faint);line-height:1.7;}

/* Empty state */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:var(--bg-soft);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  background:rgba(224,134,58,.14);color:var(--amber-deep);
  display:flex;align-items:center;justify-content:center;
}
.empty-state h2{font-size:20px;font-weight:700;color:var(--text);margin-bottom:8px;}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:20px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{background:var(--amber);color:var(--ink-deep);box-shadow:0 1px 2px rgba(224,134,58,.35);}
.btn-primary:hover{background:var(--amber-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(200,111,39,.28);}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--ink);}
.btn-ghost:hover{background:rgba(18,59,51,.08);color:var(--ink);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink);border-bottom:1px solid var(--amber-soft);padding-bottom:2px;
}
.link-arrow:hover{color:var(--amber-deep);border-bottom-color:var(--amber-deep);}

/* ---------- Sections ---------- */
.section{padding:var(--space-7) 0;}
.section-head{max-width:640px;margin-bottom:var(--space-5);}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:1.4px;
  color:var(--amber-deep);margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:1px;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;color:var(--text);}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);}

/* Note cards */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.note-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.note-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;margin-bottom:14px;
  background:rgba(224,134,58,.14);color:var(--amber-deep);
  font-size:14px;font-weight:700;
}
.note-card h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px;}
.note-card p{font-size:14px;line-height:1.78;color:var(--muted);}

/* Related cards */
.related-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:22px;}
.post-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--text);}
.post-card:hover h3{color:var(--ink);}
.post-card p{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--faint);}
.post-card .meta .link-arrow{font-size:13px;}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:0.62fr 1fr;gap:var(--space-6);align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 4px;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--amber-deep);}
.faq-item .plus{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  border:1px solid var(--line);border-radius:50%;
  transition:transform .22s ease,border-color .22s ease,background-color .22s ease;
}
.faq-item .plus::before,.faq-item .plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;
  left:50%;top:50%;transform:translate(-50%,-50%);
}
.faq-item .plus::before{width:10px;height:1.5px;}
.faq-item .plus::after{width:1.5px;height:10px;transition:opacity .2s ease;}
.faq-item[open] .plus{transform:rotate(180deg);border-color:var(--amber);background:rgba(224,134,58,.14);}
.faq-item[open] .plus::after{opacity:0;}
.faq-item .answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:46em;}

/* CTA band */
.cta-band{
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-radius:18px;padding:56px 52px;color:#fff;
  display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-90px;width:280px;height:280px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);
  background:radial-gradient(circle at 40% 40%,rgba(224,134,58,.22),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:700;color:#fff;position:relative;z-index:1;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:44em;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-deep);color:#C9D6D1;padding:64px 0 26px;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;color:#fff;font-weight:700;letter-spacing:.3px;}
.footer-brand .brand-mark{background:rgba(224,134,58,.16);color:var(--amber);}
.site-footer p{font-size:13.5px;line-height:1.85;color:#9FB1AB;}
.site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;letter-spacing:.4px;}
.site-footer ul{display:flex;flex-direction:column;gap:9px;}
.site-footer ul a{font-size:13.5px;color:#C9D6D1;}
.site-footer ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:#8FA29C;
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:216px;}
  .container{padding:0 32px;}
  .article-panel{padding:36px 34px 40px;}
  .reading-grid{grid-template-columns:minmax(0,1fr) 200px;}
}
@media (max-width:1023px){
  .sidebar{
    transform:translateX(-100%);transition:transform .22s ease;
    width:280px;box-shadow:0 12px 40px rgba(12,42,37,.35);
  }
  .sidebar.is-open{transform:translateX(0);}
  .page-shell{margin-left:0;}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    position:sticky;top:0;z-index:50;padding:12px 24px;
    background:#fff;border-bottom:1px solid var(--line);
  }
  .topbar .brand{display:flex;align-items:center;gap:10px;}
  .topbar .brand strong{font-size:16px;color:var(--ink);font-weight:700;letter-spacing:.3px;}
  .topbar .brand .brand-mark{background:rgba(224,134,58,.16);color:var(--amber-deep);width:30px;height:30px;flex:0 0 30px;}
  .nav-toggle{
    width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    background:#fff;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:1px;}
  .container{padding:0 24px;}
  .reading-grid{grid-template-columns:1fr;}
  .toc-card{display:none;}
  .note-grid{grid-template-columns:1fr 1fr;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .faq-wrap{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .article-hero{padding:32px 0 26px;}
  .crumbs .now{white-space:normal;max-width:100%;}
  .article-panel{padding:26px 20px 30px;border-radius:12px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h2::before{left:-12px;height:18px;top:12px;}
  .article-body h3{font-size:18.5px;}
  .section{padding:48px 0;}
  .note-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:44px 0 22px;}
  .article-meta{gap:8px 14px;}
}
@media (max-width:479px){
  .article-hero h1{font-size:26px;}
  .post-card .body{padding:16px;}
}

/* roulang page: category1 */
:root{
  --ink:#123B33;
  --ink-deep:#0C2A25;
  --ink-soft:#1C4C42;
  --amber:#E0863A;
  --amber-deep:#C86F27;
  --amber-soft:#E9C9A8;
  --amber-tint:#FBEEE2;
  --bg:#F5F1E9;
  --bg-soft:#EFEAE0;
  --mint:#E4EEE9;
  --card:#FFFFFF;
  --text:#1B211E;
  --muted:#5C6660;
  --meta:#8A9089;
  --line:#E2DCD0;
  --radius:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(18,59,51,.06);
  --shadow-2:0 10px 28px rgba(18,59,51,.10);
  --gap-xs:8px;
  --gap-sm:12px;
  --gap-md:24px;
  --gap-lg:48px;
  --gap-xl:72px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover{color:var(--ink)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;line-height:1.35;color:var(--text);font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
::selection{background:rgba(224,134,58,.28);color:var(--ink)}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;min-height:100vh;align-items:stretch}
.content-wrap{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  flex:0 0 240px;
  width:240px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  padding:28px 20px 24px;
  background:linear-gradient(180deg,#123B33 0%,#0C2A25 100%);
  color:#D8E4DF;
  display:flex;
  flex-direction:column;
  z-index:60;
  scrollbar-width:thin;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:3px}

.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(224,134,58,.16);
  border:1px solid rgba(224,134,58,.45);
  color:var(--amber);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;line-height:1.3;letter-spacing:.2px;color:var(--ink)}
.brand-text span{display:block;font-size:12px;line-height:1.5;color:var(--meta)}
.sidebar .brand-text strong{color:#FFFFFF}
.sidebar .brand-text span{color:#9FB6AE;font-size:12px;margin-top:2px}

.side-nav{margin-top:32px}
.side-nav ul{display:flex;flex-direction:column;gap:6px}
.side-nav a{
  position:relative;
  display:flex;align-items:center;
  min-height:44px;
  padding:10px 14px 10px 16px;
  border-radius:var(--radius-sm);
  font-size:15px;
  color:#D8E4DF;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.side-nav a::before{
  content:"";
  position:absolute;left:4px;top:50%;
  width:3px;height:18px;border-radius:2px;
  background:var(--amber);
  transform:translateY(-50%) scaleY(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.side-nav a:hover{color:#FFFFFF;background:rgba(255,255,255,.07)}
.side-nav a:hover::before{transform:translateY(-50%) scaleY(1)}
.side-nav a.is-active{color:var(--amber);background:rgba(224,134,58,.15);font-weight:600}
.side-nav a.is-active::before{transform:translateY(-50%) scaleY(1)}

.side-foot{
  margin-top:auto;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.13);
  font-size:13px;
  line-height:1.75;
  color:#9FB6AE;
}
.side-foot strong{display:block;color:#D8E4DF;font-weight:600;margin-bottom:6px;font-size:13px}
.side-foot a{color:var(--amber-soft);text-decoration:underline;text-underline-offset:3px}
.side-foot a:hover{color:#FFFFFF}

/* ---------- 移动端顶栏与遮罩 ---------- */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:50;
  align-items:center;justify-content:space-between;
  gap:12px;
  padding:10px 18px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand-text strong{font-size:16px}
.mobile-bar .brand-text span{display:none}
.nav-toggle{
  width:44px;height:44px;flex:0 0 44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  color:var(--ink);
  cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--bg-soft);border-color:#D3CBBC}
.nav-mask{
  display:none;
  position:fixed;inset:0;
  background:rgba(12,42,37,.5);
  z-index:55;
}
.nav-mask.is-open{display:block}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--amber);color:#122A24;box-shadow:0 6px 16px rgba(224,134,58,.24)}
.btn-primary:hover{background:var(--amber-deep);color:#FFFFFF;transform:translateY(-1px);box-shadow:0 10px 22px rgba(200,111,39,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#FFFFFF}
.btn-ghost:hover{background:rgba(255,255,255,.15);color:#FFFFFF}
.btn-outline{background:var(--card);border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(18,59,51,.08);color:var(--ink);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;
  border-bottom:1px solid var(--amber);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.btn-link:hover{color:var(--amber-deep);border-color:var(--amber-deep)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 60px;
  color:#FFFFFF;
  background-image:linear-gradient(102deg,rgba(12,42,37,.90) 0%,rgba(18,59,51,.78) 52%,rgba(18,59,51,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.5;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:#B9CEC7;margin-bottom:20px;
}
.breadcrumb a{color:#DCE8E3;transition:color .2s ease}
.breadcrumb a:hover{color:var(--amber-soft)}
.breadcrumb span.sep{color:rgba(255,255,255,.4)}
.hero h1{
  color:#FFFFFF;
  font-size:clamp(28px,3.2vw,38px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:.5px;
  max-width:20em;
  margin:0 0 16px;
}
.hero-lead{
  font-size:16.5px;
  line-height:1.85;
  color:#DCE8E3;
  max-width:36em;
  margin-bottom:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  margin-top:26px;
  font-size:13.5px;
  color:#B9CEC7;
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);flex:0 0 5px}

.hero .grid-x{margin-left:-14px;margin-right:-14px}
.hero .cell{padding-left:14px;padding-right:14px}

.check-panel{
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:0 16px 40px rgba(6,26,22,.28);
}
.check-panel h2{
  font-size:15px;color:#FFFFFF;font-weight:600;
  letter-spacing:.4px;margin-bottom:16px;
  display:flex;align-items:center;gap:10px;
}
.check-panel h2::before{content:"";width:16px;height:2px;background:var(--amber);border-radius:2px}
.check-panel ul{display:flex;flex-direction:column;gap:14px}
.check-panel li{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.7;color:#DCE8E3}
.check-panel li b{display:block;color:#FFFFFF;font-weight:600;font-size:14px}
.check-panel li span.dot{
  width:20px;height:20px;flex:0 0 20px;margin-top:3px;
  border-radius:50%;
  background:rgba(224,134,58,.22);
  border:1px solid rgba(224,134,58,.65);
  display:grid;place-items:center;
  color:var(--amber-soft);
  font-size:11px;
  line-height:1;
}

/* ---------- 板块通用 ---------- */
main{flex:1 0 auto}
.section{padding-top:72px}
.section-head{max-width:44em;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;color:var(--amber-deep);
  letter-spacing:.08em;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--amber)}
.section-title{font-size:26px;line-height:1.4;font-weight:700;margin:12px 0 12px}
.section-sub{color:var(--muted);font-size:15.5px;margin:0}

/* ---------- 图文分栏 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1.06fr;
  gap:var(--gap-lg);
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  background:var(--bg-soft);
}
.split-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 1.2s ease;
}
.split-media:hover img{transform:scale(1.03)}
.media-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(12,42,37,.82);
  color:#FFFFFF;
  font-size:12.5px;
  font-weight:600;
}
.media-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.split-body h2{font-size:26px;margin-bottom:16px}
.split-body p{color:var(--muted);font-size:15.5px;line-height:1.85}
.list-check{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.list-check li{
  position:relative;
  padding-left:28px;
  font-size:15px;
  color:var(--text);
  line-height:1.75;
}
.list-check li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:12px;height:12px;
  border-radius:50%;
  background:rgba(224,134,58,.22);
  border:1.5px solid var(--amber);
}

/* ---------- 要点卡（非对称网格） ---------- */
.point-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  grid-template-rows:auto auto;
  gap:24px;
}
.point-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:28px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CEC0}
.point-card.is-feature{grid-row:span 2;padding:0;overflow:hidden}
.point-card.is-feature .feature-media{position:relative;overflow:hidden}
.point-card.is-feature .feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.2s ease}
.point-card.is-feature:hover .feature-media img{transform:scale(1.03)}
.point-card.is-feature .feature-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1}
.point-card h3{font-size:20px;line-height:1.45;font-weight:600;margin-bottom:10px}
.point-card.is-feature h3{font-size:22px;margin-bottom:0}
.point-card p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:999px;
  background:var(--bg-soft);
  color:var(--ink);
  font-size:12.5px;
  font-weight:600;
  line-height:1.7;
  width:fit-content;
}
.tag.is-amber{background:var(--amber-tint);color:var(--amber-deep)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:16px}

/* ---------- 编号步骤 ---------- */
.steps-wrap{margin-top:8px}
.progress-track{display:flex;gap:6px;margin-bottom:24px}
.progress-track i{
  display:block;height:5px;flex:1;border-radius:3px;
  background:var(--line);
}
.progress-track i.on{background:var(--amber)}
.steps{border-top:1px solid var(--line)}
.step{
  display:grid;
  grid-template-columns:72px 1fr auto;
  gap:24px;
  align-items:start;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.step:hover{background:rgba(255,255,255,.55)}
.step-num{
  font-size:22px;
  font-weight:700;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
  line-height:1.4;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:6px;line-height:1.5}
.step p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
.step-note{
  font-size:13px;
  color:var(--meta);
  white-space:nowrap;
  padding-top:4px;
}

/* ---------- FAQ ---------- */
.faq{max-width:56em}
.faq details{
  border-top:1px solid var(--line);
  padding:0;
}
.faq details:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq summary:hover{color:var(--amber-deep)}
.faq summary .plus{
  flex:0 0 22px;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  border:1px solid rgba(224,134,58,.55);
  background:var(--amber-tint);
}
.faq summary .plus::before,
.faq summary .plus::after{
  content:"";
  position:absolute;left:50%;top:50%;
  background:var(--amber-deep);
  border-radius:1px;
  transform:translate(-50%,-50%);
  transition:transform .22s ease,opacity .22s ease;
}
.faq summary .plus::before{width:10px;height:1.6px}
.faq summary .plus::after{width:1.6px;height:10px}
.faq details[open] summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{
  padding:0 0 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:46em;
}
.faq-body strong{color:var(--ink);font-weight:600}

/* ---------- CTA 色块 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  margin-top:72px;
  border-radius:var(--radius);
  padding:56px;
  background:linear-gradient(120deg,#123B33 0%,#0C2A25 100%);
  color:#FFFFFF;
  display:grid;
  grid-template-columns:1.5fr auto;
  gap:36px;
  align-items:center;
  box-shadow:0 16px 40px rgba(12,42,37,.18);
}
.cta-band::after{
  content:"";
  position:absolute;right:-60px;top:-60px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 0 0 32px rgba(255,255,255,.03);
  pointer-events:none;
}
.cta-band h2{color:#FFFFFF;font-size:26px;line-height:1.4;margin-bottom:12px}
.cta-band p{color:#C9D6D1;font-size:15.5px;margin:0;max-width:40em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#C9D6D1;
  padding:64px 0 0;
  margin-top:96px;
  flex-shrink:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#FFFFFF;font-size:17px;font-weight:700}
.footer-brand .brand-mark{
  background:rgba(224,134,58,.16);
  border-color:rgba(224,134,58,.45);
  color:var(--amber);
}
.site-footer p{font-size:14px;line-height:1.85;color:#C9D6D1;margin:0 0 10px}
.site-footer h4{color:#FFFFFF;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul a{
  color:#C9D6D1;
  font-size:14px;
  transition:color .2s ease;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
}
.site-footer ul a:hover{color:#FFFFFF;border-bottom-color:rgba(255,255,255,.6)}
.site-footer ul a.is-active{color:var(--amber-soft)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:48px;
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#9FB6AE;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .sidebar{flex-basis:216px;width:216px}
  .container{padding:0 32px}
  .split{gap:36px}
}

@media (max-width:1023px){
  .sidebar{
    position:fixed;
    left:-290px;top:0;bottom:0;
    width:272px;flex-basis:272px;
    height:100vh;
    transition:left .22s ease;
    box-shadow:0 0 40px rgba(0,0,0,.28);
  }
  .sidebar.is-open{left:0}
  .mobile-bar{display:flex}
  .container{padding:0 24px}
  .hero{padding:48px 0 44px}
  .split{grid-template-columns:1fr;gap:28px}
  .point-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .point-card.is-feature{grid-row:auto}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding-top:56px}
  .site-footer{margin-top:64px}
}

@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .hero h1{font-size:clamp(26px,6.4vw,30px)}
  .hero-lead{font-size:15.5px}
  .section-title,.split-body h2,.cta-band h2{font-size:22px}
  .step{grid-template-columns:48px 1fr;gap:14px;padding:22px 0}
  .step-num{font-size:19px}
  .step-note{grid-column:2;white-space:normal;padding-top:0;margin-top:2px}
  .point-card{padding:22px}
  .point-card.is-feature .feature-body{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq summary{font-size:15.5px;padding:18px 0}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
}

@media (max-width:479px){
  .hero h1{font-size:26px;letter-spacing:.3px}
  .hero{padding:36px 0 34px}
  .breadcrumb{font-size:12.5px;margin-bottom:14px}
  .check-panel{padding:18px}
  .tag{font-size:12px}
}

/* roulang page: category2 */
:root{
  --ink:#123B33;
  --ink-deep:#0C2A25;
  --amber:#E0863A;
  --amber-hover:#C86F27;
  --amber-soft:#F2D8BC;
  --bg:#F5F1E9;
  --bg-soft:#EFEAE0;
  --card:#FFFFFF;
  --text:#1B211E;
  --muted:#5C6660;
  --faint:#8A9089;
  --line:#E2DCD0;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:8px;
  --shadow-1:0 1px 2px rgba(18,59,51,.06);
  --shadow-2:0 10px 28px rgba(18,59,51,.10);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px;
  --sp-5:32px; --sp-6:48px; --sp-7:72px; --sp-8:96px;
  --nav-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--amber-hover);}
img{max-width:100%;display:block;border-radius:var(--radius-card);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--ink);
  display:flex;flex-direction:column;
  padding:28px 20px 22px;
  overflow-y:auto;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar .brand-block{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(224,134,58,.16);
  color:var(--amber);
  border:1px solid rgba(224,134,58,.35);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px;line-height:1.35;}
.brand-text span{display:block;font-size:12px;color:#A9BDB7;letter-spacing:.3px;margin-top:2px;}
.sidebar .side-sub{font-size:12px;color:#9FB4AD;line-height:1.7;margin:16px 0 22px;padding-top:16px;border-top:1px solid rgba(255,255,255,.09);}
.side-nav ul{display:flex;flex-direction:column;gap:6px;}
.side-nav a{
  position:relative;display:block;
  padding:11px 12px 11px 16px;
  border-radius:10px;
  font-size:15px;color:#D8E4DF;
  transition:color .2s ease,background-color .2s ease;
}
.side-nav a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;
  background:var(--amber);opacity:0;transition:opacity .2s ease;
}
.side-nav a:hover{color:#fff;background:rgba(255,255,255,.07);}
.side-nav a:hover::before{opacity:1;}
.side-nav a.is-active{color:var(--amber);background:rgba(224,134,58,.14);font-weight:600;}
.side-nav a.is-active::before{opacity:1;}
.sidebar-foot{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);}
.sidebar-foot p{font-size:12px;color:#9FB4AD;line-height:1.75;}
.sidebar-foot .foot-link{display:inline-block;margin-top:10px;font-size:13px;color:#D8E4DF;border-bottom:1px solid rgba(216,228,223,.35);padding-bottom:1px;}
.sidebar-foot .foot-link:hover{color:#fff;border-bottom-color:var(--amber);}

/* ============ 移动端顶栏 & 抽屉 ============ */
.mobile-top{
  display:none;
  position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;
  padding:10px 18px;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.mobile-top .brand-block{display:flex;align-items:center;gap:8px;}
.mobile-top .brand-mark{width:30px;height:30px;flex:0 0 30px;background:rgba(18,59,51,.08);color:var(--ink);border-color:rgba(18,59,51,.18);}
.mobile-top .brand-text strong{font-size:15px;color:var(--ink);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);
  background:#fff;color:var(--ink);
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--bg-soft);border-color:#CFC7B7;}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(12,42,37,.5);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(84vw,320px);
  background:#fff;
  padding:22px 20px;
  transform:translateX(100%);
  transition:transform .22s ease;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head strong{font-size:16px;color:var(--ink);}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:18px;color:var(--muted);line-height:1;
}
.drawer-close:hover{background:var(--bg-soft);color:var(--ink);}
.drawer .side-nav a{color:var(--text);padding:13px 12px 13px 16px;font-size:15.5px;}
.drawer .side-nav a:hover{background:var(--bg-soft);color:var(--ink);}
.drawer .side-nav a.is-active{color:var(--ink);background:var(--bg-soft);font-weight:600;}
.drawer .side-nav a::before{background:var(--amber);}
.drawer-note{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.8;}

/* ============ 主内容骨架 ============ */
.content{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
main{flex:1 0 auto;}

/* ============ 窄幅 banner ============ */
.page-banner{
  position:relative;
  background-image:linear-gradient(102deg,rgba(12,42,37,.92) 0%,rgba(18,59,51,.82) 52%,rgba(18,59,51,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:56px 0 52px;
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;
  border:1px solid rgba(255,255,255,.16);border-radius:50%;
  pointer-events:none;
}
.page-banner::before{
  content:"";position:absolute;right:30px;bottom:-120px;width:220px;height:220px;
  border:1px solid rgba(224,134,58,.32);border-radius:50%;
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#B9CCC6;margin-bottom:18px;position:relative;z-index:2;}
.crumb a{color:#D8E4DF;}
.crumb a:hover{color:var(--amber);}
.crumb span[aria-current]{color:#fff;}
.page-banner h1{
  position:relative;z-index:2;
  font-size:clamp(30px,3.4vw,40px);
  line-height:1.3;font-weight:700;letter-spacing:.5px;
  color:#fff;max-width:22em;
}
.banner-lead{
  position:relative;z-index:2;
  margin-top:16px;max-width:36em;
  font-size:16.5px;line-height:1.85;color:#DCE7E3;
}
.banner-tags{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag-pill{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  font-size:13px;line-height:1.6;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  color:#F1F6F4;
}

/* ============ 板块通用 ============ */
.section{padding:var(--sp-7) 0;}
.section-soft{background:var(--bg-soft);}
.section-head{max-width:44em;margin-bottom:var(--sp-5);}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--amber-hover);margin-bottom:12px;
}
.section-label::before{content:"";width:18px;height:2px;background:var(--amber);border-radius:2px;}
.section-head h2{
  font-size:26px;line-height:1.35;font-weight:700;color:var(--text);
  letter-spacing:.3px;
}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85;}

/* ============ 快速定位三卡 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.quick-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CEBE;}
.quick-card .q-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:38px;padding:0 10px;
  border-radius:10px;background:var(--bg-soft);
  color:var(--ink);font-size:14px;font-weight:700;letter-spacing:.5px;
  margin-bottom:16px;
}
.quick-card h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:10px;}
.quick-card p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ 编号长列表 ============ */
.num-list{border-bottom:1px solid var(--line);}
.num-item{
  display:grid;
  grid-template-columns:76px minmax(0,1fr) 216px;
  gap:28px;
  align-items:start;
  padding:30px 8px 30px 0;
  border-top:1px solid var(--line);
  transition:background-color .2s ease;
}
.num-item:hover{background:rgba(255,255,255,.55);}
.num-index{
  font-size:26px;font-weight:700;line-height:1.2;
  color:var(--amber);letter-spacing:.06em;
  padding-top:2px;
}
.num-body h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--text);margin-bottom:10px;}
.num-body p{font-size:15px;line-height:1.85;color:var(--muted);max-width:38em;}
.num-body .num-tip{
  display:inline-block;margin-top:14px;
  font-size:13px;color:var(--ink);
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
}
.num-media img{
  width:100%;height:142px;object-fit:cover;
  border-radius:12px;border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease;
}
.num-item:hover .num-media img{transform:scale(1.02);}

/* ============ 对比分栏 ============ */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.compare-col{padding:34px 32px;}
.compare-col + .compare-col{border-left:1px solid var(--line);}
.compare-col .c-tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--bg-soft);color:var(--ink);
  border:1px solid var(--line);
  margin-bottom:16px;
}
.compare-col h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:12px;color:var(--text);}
.compare-col p{font-size:15px;color:var(--muted);line-height:1.85;}
.compare-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.compare-list li{
  position:relative;padding-left:22px;
  font-size:14.5px;line-height:1.8;color:var(--muted);
}
.compare-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:9px;height:9px;border-radius:50%;
  border:2px solid var(--amber);background:transparent;
}

/* ============ FAQ ============ */
.faq{margin-top:8px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--ink-deep);}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;margin-top:3px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--bg-soft);
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:var(--amber);border-color:var(--amber);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:44em;}

/* ============ CTA 色块 ============ */
.cta-band{
  position:relative;
  background-image:linear-gradient(120deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#fff;
  border-radius:var(--radius-card);
  padding:52px 48px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;font-weight:700;line-height:1.4;letter-spacing:.3px;color:#fff;}
.cta-inner p{margin-top:12px;font-size:15.5px;line-height:1.85;color:#C9D6D1;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  letter-spacing:.4px;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--amber);color:var(--ink-deep);box-shadow:0 4px 14px rgba(224,134,58,.28);}
.btn-primary:hover{background:var(--amber-hover);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(200,111,39,.32);}
.btn-primary:active{transform:translateY(0);background:#B2601F;}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--ink);}
.btn-outline:hover{background:rgba(18,59,51,.08);color:var(--ink-deep);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(18,59,51,.28);padding-bottom:3px;
  transition:color .2s ease,border-color .2s ease;
}
.link-arrow:hover{color:var(--amber-hover);border-bottom-color:var(--amber);}
.link-arrow::after{content:"→";font-size:15px;transition:transform .2s ease;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#C9D6D1;
  padding:58px 0 24px;
  margin-top:var(--sp-7);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;}
.footer-brand strong{font-size:17px;color:#fff;letter-spacing:.4px;}
.site-footer p{font-size:14px;line-height:1.85;color:#A9BDB7;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a{font-size:14px;color:#C9D6D1;transition:color .2s ease;}
.site-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--amber);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:#93A9A2;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:216px;}
  .container{padding:0 32px;}
  .num-item{grid-template-columns:64px minmax(0,1fr) 190px;gap:22px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .mobile-top{display:flex;}
  .content{margin-left:0;}
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-banner{padding:44px 0 40px;}
  .cta-band{padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:23px;}
  .quick-grid{grid-template-columns:1fr;}
  .num-item{
    grid-template-columns:48px minmax(0,1fr);
    gap:16px;padding:24px 0;
  }
  .num-index{font-size:22px;}
  .num-media{grid-column:1 / -1;}
  .num-media img{height:180px;}
  .compare{grid-template-columns:1fr;}
  .compare-col{padding:26px 22px;}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line);}
  .faq-q{font-size:16px;padding:18px 2px;}
  .cta-band{padding:32px 22px;border-radius:12px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:44px 0 20px;}
}
@media (max-width:479px){
  .page-banner h1{font-size:26px;}
  .banner-lead{font-size:15px;}
  .btn{min-height:44px;padding:0 20px;width:100%;}
  .cta-actions{flex-direction:column;}
}