/* roulang page: index */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-success:#2E7D5B;
  --c-warn:#B4761E;
  --c-error:#B23A32;
  --c-gold:#C9A26B;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Barlow","Helvetica Neue",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-900);
  background-color:var(--c-bg);
  background-image:radial-gradient(rgba(201,162,107,.07) 1px,transparent 1px);
  background-size:26px 26px;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent-600);text-decoration:underline;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure,blockquote{margin:0;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;letter-spacing:-.01em;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--c-brand-700);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-brand-900);color:#CBDFD6;font-size:13px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;overflow:hidden;}
.topbar__note{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent-400);flex:0 0 auto;}
.topbar a{color:#E6F1EB;font-size:13px;font-weight:600;}
.topbar a:hover{color:#fff;text-decoration:none;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-inner{display:flex;align-items:center;gap:22px;padding-top:16px;padding-bottom:16px;transition:padding .2s ease;}
.site-header.is-scrolled .nav-inner{padding-top:10px;padding-bottom:10px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo:hover{text-decoration:none;}
.logo-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,var(--c-brand-700),var(--c-brand-500));display:grid;place-items:center;box-shadow:var(--sh-1);flex:0 0 auto;}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-size:18px;font-weight:700;color:var(--c-ink-900);letter-spacing:-.01em;white-space:nowrap;}
.logo-text em{font-style:normal;color:var(--c-brand-700);}
.search{flex:1 1 auto;max-width:520px;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-pill);padding:4px 4px 4px 16px;height:46px;transition:border-color .18s ease,box-shadow .18s ease;}
.search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12);}
.search svg{width:18px;height:18px;color:var(--c-ink-300);flex:0 0 auto;}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px;height:100%;}
.search input::placeholder{color:var(--c-ink-300);}
.search button{border:0;background:var(--c-brand-700);color:#fff;border-radius:var(--r-pill);height:36px;padding:0 20px;font-size:14px;font-weight:600;cursor:pointer;transition:background .18s ease;}
.search button:hover{background:var(--c-brand-500);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-login{font-size:15px;font-weight:600;color:var(--c-brand-700);}
.link-login:hover{text-decoration:none;color:var(--c-accent-600);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex:0 0 auto;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-brand-700);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-brand-700);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.cat-nav{border-top:1px solid var(--c-border);background:#fff;}
.cat-nav__inner{display:flex;align-items:center;gap:6px;overflow-x:auto;padding-top:9px;padding-bottom:9px;scrollbar-width:none;}
.cat-nav__inner::-webkit-scrollbar{display:none;}
.cat-nav a{font-size:15px;color:var(--c-ink-500);padding:6px 15px;border-radius:var(--r-pill);white-space:nowrap;transition:background .18s ease,color .18s ease;}
.cat-nav a:hover{background:var(--c-brand-100);color:var(--c-brand-700);text-decoration:none;}
.cat-nav a.is-active{background:var(--c-brand-700);color:#fff;font-weight:600;}
.mobile-nav{display:none;border-top:1px solid var(--c-border);background:#fff;padding:16px 0 20px;}
.mobile-nav.open{display:block;}
.mobile-nav .search{display:flex;max-width:100%;margin-bottom:14px;}
.mobile-nav__links{display:flex;flex-direction:column;gap:2px;}
.mobile-nav__links a{padding:11px 14px;border-radius:var(--r-md);font-size:15px;color:var(--c-ink-500);}
.mobile-nav__links a:hover{background:var(--c-brand-100);color:var(--c-brand-700);text-decoration:none;}
.mobile-nav__links a.is-active{background:var(--c-brand-100);color:var(--c-brand-700);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-md);font-size:15px;font-weight:600;padding:0 22px;height:44px;border:1px solid transparent;cursor:pointer;transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;}
.btn-accent{background:var(--c-accent-600);color:#fff;}
.btn-accent:hover{background:var(--c-accent-400);color:#fff;}
.btn-brand{background:var(--c-brand-700);color:#fff;}
.btn-brand:hover{background:var(--c-brand-500);color:#fff;}
.btn-outline{background:transparent;border-color:var(--c-brand-700);color:var(--c-brand-700);}
.btn-outline:hover{background:var(--c-brand-700);color:#fff;border-color:var(--c-brand-700);}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-brand-700);}
.btn-ghost:hover{border-color:var(--c-brand-500);color:var(--c-accent-600);box-shadow:var(--sh-1);}
.btn-lg{height:52px;font-size:16px;padding:0 28px;border-radius:var(--r-lg);}
.btn-sm{height:36px;font-size:13px;padding:0 15px;}

/* ---------- 通用板块 ---------- */
.section{padding:78px 0;}
.section--alt{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.section--tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:28px;}
.section-head p{color:var(--c-ink-500);font-size:15px;margin-top:10px;max-width:680px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-accent-600);margin-bottom:10px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-brand-100);color:var(--c-brand-700);font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.badge--accent{background:var(--c-accent-100);color:var(--c-accent-600);}
.hairline{height:1px;background:linear-gradient(90deg,transparent,rgba(201,162,107,.75),transparent);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--c-brand-900);}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.6;}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,47,39,.94) 0%,rgba(11,47,39,.80) 46%,rgba(11,47,39,.52) 100%);}
.hero__inner{position:relative;z-index:2;padding:86px 0 92px;max-width:840px;}
.hero__eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;color:#A8CFBF;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);padding:6px 15px;margin-bottom:20px;}
.hero h1{font-family:var(--font-serif);font-size:44px;line-height:1.3;color:#fff;}
.hero__sub{color:#CFE0D8;font-size:17px;margin-top:18px;max-width:620px;}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__cta .btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.hero__cta .btn-outline:hover{background:#fff;color:var(--c-brand-700);border-color:#fff;}
.hero__points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:36px;}
.hero__points li{color:#BFD6CB;font-size:14px;display:flex;align-items:center;gap:9px;}
.hero__points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-jade-500);flex:0 0 auto;}

/* ---------- 权益对比表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--c-border);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh-1);}
table.plan{width:100%;min-width:900px;}
table.plan th,table.plan td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--c-border);font-size:15px;vertical-align:middle;}
table.plan thead th{position:sticky;top:0;background:#fff;z-index:3;vertical-align:top;padding-top:22px;padding-bottom:20px;}
table.plan tbody th{text-align:left;font-weight:600;color:var(--c-ink-900);background:#fff;position:sticky;left:0;z-index:2;min-width:160px;font-size:15px;}
table.plan td{color:var(--c-ink-500);}
table.plan tr:last-child th,table.plan tr:last-child td{border-bottom:0;}
table.plan th:nth-child(4),table.plan td:nth-child(4){background:#F1F7F4;}
table.plan thead th:nth-child(4){border-top:3px solid var(--c-brand-700);}
.plan-name{font-size:16px;font-weight:700;color:var(--c-ink-900);margin-top:6px;}
.plan-price{margin:8px 0 12px;}
.plan-price .num{font-size:28px;font-weight:700;color:var(--c-brand-700);}
.plan-price small{font-size:13px;color:var(--c-ink-300);margin-left:3px;}
.plan-flag{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--r-pill);background:var(--c-accent-600);color:#fff;font-size:12px;font-weight:600;}
.plan-note{margin-top:18px;color:var(--c-ink-500);font-size:14px;}

/* ---------- 等级亮点 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:32px 0;border-bottom:1px solid rgba(201,162,107,.4);}
.feature-row:first-child{padding-top:0;}
.feature-row:last-child{border-bottom:0;padding-bottom:0;}
.feature-row--flip .feature-row__media{order:-1;}
.feature-num{font-family:var(--font-serif);font-size:48px;font-weight:700;color:rgba(20,69,58,.18);line-height:1;display:block;margin-bottom:12px;}
.feature-row h3{font-size:21px;margin-bottom:12px;}
.feature-row p{color:var(--c-ink-500);font-size:15.5px;}
.feature-row__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card__media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--c-brand-100);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease;}
.card:hover .card__media img{transform:scale(1.03);}
.card__media .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__body h3{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card__body h3{color:var(--c-brand-700);}
.card__body p{color:var(--c-ink-500);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;font-size:13px;color:var(--c-ink-300);}
.card__meta a{font-weight:600;font-size:13px;}

/* ---------- 最新信息 ---------- */
.post-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:22px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C4;}
.post-card h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card h3 a{color:var(--c-ink-900);}
.post-card h3 a:hover{color:var(--c-brand-700);text-decoration:none;}
.post-card p{color:var(--c-ink-500);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--c-border);border-radius:var(--r-lg);}
.empty-state svg{width:44px;height:44px;color:var(--c-jade-500);margin:0 auto 14px;}
.empty-state p{color:var(--c-ink-500);font-size:15px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 32px;}
.faq-col__title{font-size:16px;font-weight:700;color:var(--c-brand-700);margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.faq-col__title::after{content:"";flex:1;height:1px;background:rgba(201,162,107,.45);}
details.faq{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease;}
details.faq:hover{box-shadow:var(--sh-1);}
details.faq summary{list-style:none;cursor:pointer;padding:0 20px;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:600;font-size:15.5px;position:relative;}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--c-brand-700);}
details.faq summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--c-ink-300);border-bottom:2px solid var(--c-ink-300);transform:rotate(45deg);transition:transform .18s ease;flex:0 0 auto;margin-top:-4px;}
details.faq[open] summary::after{transform:rotate(-135deg);margin-top:4px;}
.faq-body{padding:6px 22px 20px 24px;color:var(--c-ink-500);font-size:15.5px;line-height:1.85;background:#FBFAF6;border-top:1px solid var(--c-border);}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-brand-900);color:#fff;border-radius:var(--r-xl);padding:52px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.cta-band__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.22;}
.cta-band__overlay{position:absolute;inset:0;background:linear-gradient(110deg,rgba(11,47,39,.95),rgba(11,47,39,.72));}
.cta-band__inner{position:relative;z-index:2;}
.cta-band h2{font-size:30px;color:#fff;}
.cta-band p{color:#CBDFD6;font-size:15.5px;margin-top:14px;max-width:520px;}
.cta-form-panel{position:relative;z-index:2;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);padding:26px;}
.cta-form-panel label{display:block;font-size:14px;color:#CBDFD6;margin-bottom:10px;}
.field{display:flex;gap:12px;}
.field input{flex:1;min-width:0;height:46px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.24);background:#fff;padding:0 16px;font-size:15px;outline:none;transition:border-color .18s ease,box-shadow .18s ease;}
.field input:focus{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.2);}
.field button{flex:0 0 auto;}
.field-msg{display:none;font-size:14px;margin-top:10px;color:#FFC9C2;}
.field.is-error input{border-color:var(--c-error);}
.field.is-error + .field-msg{display:block;}
.cta-notes{margin-top:20px;display:flex;flex-direction:column;gap:9px;}
.cta-notes li{font-size:13.5px;color:#B4CCC1;display:flex;align-items:flex-start;gap:9px;}
.cta-notes li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-jade-500);margin-top:9px;flex:0 0 auto;}

/* ---------- 数据条 ---------- */
.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px;}
.metric{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1);}
.metric__label{font-size:14px;color:var(--c-ink-500);}
.metric__value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:36px;font-weight:700;color:var(--c-brand-700);line-height:1.2;margin:6px 0 2px;}
.metric__value small{font-size:15px;color:var(--c-ink-300);font-weight:600;margin-left:4px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-900);color:#BFD6CB;padding:64px 0 0;font-size:14.5px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:#BFD6CB;}
.site-footer a:hover{color:#fff;text-decoration:none;}
.footer-about p{line-height:1.9;color:#A7C2B6;}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13.5px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#8FAEA1;}
.footer-bottom a{color:#A7C2B6;}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero h1{font-size:40px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
}
@media (max-width:992px){
  .search{display:none;}
  .nav-toggle{display:flex;}
  .link-login{display:none;}
  .nav-actions .btn{height:40px;padding:0 16px;font-size:14px;}
  .section{padding:60px 0;}
  .feature-row{grid-template-columns:1fr;gap:24px;}
  .feature-row--flip .feature-row__media{order:0;}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;gap:30px;}
  .faq-wrap{grid-template-columns:1fr;gap:0;}
  .metric-strip{grid-template-columns:1fr;gap:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:768px){
  .topbar{display:none;}
  .container{padding:0 16px;}
  .hero__inner{padding:56px 0 60px;}
  .hero h1{font-size:30px;}
  .hero__sub{font-size:16px;}
  .hero__cta .btn{width:100%;}
  .hero__points{gap:10px 20px;margin-top:28px;}
  .section-head h2{font-size:23px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .field{flex-direction:column;}
  .field button{width:100%;}
}
@media (max-width:560px){
  .logo-text{font-size:16px;}
  .logo-mark{width:36px;height:36px;}
  .nav-actions .btn{display:none;}
  .hero h1{font-size:26px;line-height:1.35;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-head h2{font-size:21px;}
  .feature-num{font-size:38px;}
  .feature-row h3{font-size:19px;}
  .cta-band{padding:32px 20px;border-radius:var(--r-lg);}
  .metric__value{font-size:30px;}
}

/* roulang page: article */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761E;
  --c-error:#B23A32;
  --c-gold:#C9A26B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--c-accent-600)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-brand-500);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand-700);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-md) 0;z-index:200}
.skip-link:focus{left:0;color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:28px;line-height:1.4;font-weight:700;color:var(--c-brand-900);letter-spacing:-.01em}
.section-head p{color:var(--c-ink-500);font-size:15px;margin-top:8px}
.more-link{font-size:14px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent}
.more-link:hover{border-bottom-color:var(--c-accent-600)}

/* 顶部信息条 */
.topbar{background:var(--c-brand-900);color:#E9F1EC;font-size:13px;height:32px;display:flex;align-items:center}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar__notice{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__links{display:flex;align-items:center;gap:10px;color:#B9CEC5}
.topbar__links a{color:#E9F1EC}
.topbar__links a:hover{color:var(--c-accent-400)}
.topbar__links .sep{color:#5C7A6F}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:76px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-brand-900)}
.brand:hover{color:var(--c-brand-900)}
.brand__mark{display:flex;flex:0 0 auto}
.brand__text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.header-search{
  display:flex;align-items:center;flex:1 1 auto;max-width:520px;
  height:44px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-pill);padding:0 6px 0 16px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.header-search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12)}
.header-search__icon{flex:0 0 auto;color:var(--c-ink-300);display:flex}
.header-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;padding:0 12px;color:var(--c-ink-900);
}
.header-search input::placeholder{color:var(--c-ink-300)}
.header-search button{
  flex:0 0 auto;height:34px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease;
}
.header-search button:hover{background:var(--c-brand-500)}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto}
.link-login{font-size:15px;font-weight:600;color:var(--c-brand-700)}
.link-login:hover{color:var(--c-accent-600)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;padding:0 22px;height:46px;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--sm{height:38px;font-size:14px;padding:0 18px}
.btn--accent{background:var(--c-accent-600);color:#fff}
.btn--accent:hover{background:var(--c-accent-400);color:#fff;transform:translateY(-1px)}
.btn--accent:active{transform:translateY(0);background:#9C4319}
.btn--outline{background:transparent;border-color:var(--c-brand-700);color:var(--c-brand-700)}
.btn--outline:hover{background:var(--c-brand-100);color:var(--c-brand-900)}
.btn--light{background:#fff;color:var(--c-brand-900)}
.btn--light:hover{background:#F1EDE4;color:var(--c-brand-900);transform:translateY(-1px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);border-radius:var(--r-md);
  background:#fff;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-brand-700);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 分类导航 */
.cat-nav{background:var(--c-brand-100);border-bottom:1px solid var(--c-border)}
.cat-nav__inner{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:thin}
.cat-nav__inner a{
  display:inline-block;padding:14px 4px;margin-right:20px;
  font-size:14px;font-weight:600;color:var(--c-brand-700);white-space:nowrap;
  border-bottom:2px solid transparent;
}
.cat-nav__inner a:hover{color:var(--c-accent-600)}
.cat-nav__inner a.is-active{color:var(--c-brand-900);border-bottom-color:var(--c-accent-600)}

/* 面包屑与页面头 */
.page-head{background:#FCFAF6;border-bottom:1px solid var(--c-border);padding:26px 0 24px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-500)}
.breadcrumb a{color:var(--c-ink-500)}
.breadcrumb a:hover{color:var(--c-accent-600);text-decoration:underline}
.breadcrumb .sep{color:var(--c-ink-300)}
.breadcrumb .current{color:var(--c-brand-900);font-weight:600}
.page-head__eyebrow{
  margin-top:14px;font-size:14px;font-weight:600;color:var(--c-brand-500);letter-spacing:.04em;
}
.page-head__eyebrow span{color:var(--c-ink-300);font-weight:400;margin:0 8px}

/* 文章布局 */
.article-wrap{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-main{min-width:0}
.article-head{padding-bottom:24px;border-bottom:1px solid var(--c-border);margin-bottom:32px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-brand-100);color:var(--c-brand-700);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--accent{background:var(--c-accent-100);color:var(--c-accent-600)}
.article-head h1{
  margin:16px 0 0;font-size:36px;line-height:1.44;font-weight:700;letter-spacing:-.01em;color:var(--c-brand-900);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:18px;font-size:14px;color:var(--c-ink-300)}
.article-meta em{font-style:normal;color:var(--c-ink-500);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-ink-300)}

/* 正文 */
.article-body{max-width:720px;font-size:17px;line-height:1.95;color:var(--c-ink-900)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;font-size:26px;line-height:1.5;font-weight:700;color:var(--c-brand-900);
  margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:6px;height:22px;border-radius:3px;background:var(--c-accent-600);
}
.article-body h3{font-size:20px;line-height:1.6;font-weight:600;color:var(--c-brand-700);margin:1.7em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-ink-900);margin:1.4em 0 .5em}
.article-body strong{font-weight:700;color:var(--c-brand-900)}
.article-body a{color:var(--c-brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent-600)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0}
.article-body li::marker{color:var(--c-brand-500)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:#FBF9F4;
  border-left:4px solid var(--c-brand-500);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-ink-500);font-size:16px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:14px;color:var(--c-ink-300);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;line-height:1.7;
  border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:11px 14px;text-align:left}
.article-body thead th{background:var(--c-brand-100);color:var(--c-brand-900);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBFAF6}
.article-body hr{border:0;height:1px;background:var(--c-border);margin:2.4em 0}
.article-body code{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:.92em;
  background:#F1EDE4;border-radius:6px;padding:2px 6px;color:var(--c-brand-700);
}
.empty-state{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--c-brand-900);margin-bottom:12px}
.empty-state p{color:var(--c-ink-500);font-size:15px;margin-bottom:22px}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--c-brand-900);letter-spacing:.02em;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--c-border);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.65;color:var(--c-ink-500);
  padding:7px 10px;border-radius:var(--r-sm);border-left:2px solid transparent;
}
.toc-list a:hover{background:#F6F3EC;color:var(--c-brand-700)}
.toc-list a.is-current{background:var(--c-brand-100);color:var(--c-brand-900);border-left-color:var(--c-accent-600);font-weight:600}
.toc-item--h3 a{padding-left:22px;font-size:13px}
.side-related{display:flex;flex-direction:column;gap:14px}
.side-related a{display:block;font-size:14px;font-weight:600;color:var(--c-brand-900);line-height:1.6}
.side-related a:hover{color:var(--c-accent-600)}
.side-related a span{display:block;font-size:13px;font-weight:400;color:var(--c-ink-300);margin-top:4px;line-height:1.6}
.side-tip{
  background:var(--c-brand-900);color:#E9F1EC;border-radius:var(--r-lg);padding:22px;
}
.side-tip h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:10px}
.side-tip p{font-size:13px;line-height:1.8;color:#B9CEC5;margin-bottom:16px}
.side-tip .btn{width:100%;height:42px;font-size:14px}

/* 相关推荐 */
.related-section{background:#FCFAF6;border-top:1px solid var(--c-border)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DCD5C8}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEBE2}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card__body h3{font-size:18px;line-height:1.55;font-weight:600;color:var(--c-brand-900)}
.card:hover .card__body h3{color:var(--c-accent-600)}
.card__body p{font-size:14px;line-height:1.8;color:var(--c-ink-500)}
.card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-300);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* 转化提示条 */
.cta-strip{padding:0 0 72px}
.cta-strip__inner{
  background:var(--c-brand-700);border-radius:var(--r-xl);padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-strip__inner::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(201,162,107,.4);
}
.cta-strip h2{font-size:24px;line-height:1.5;font-weight:700;color:#fff}
.cta-strip p{font-size:14px;color:#B9CEC5;margin-top:10px;max-width:640px}
.cta-strip__actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* 页脚 */
.site-footer{background:var(--c-brand-900);color:#C7D9D1;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-about h4{font-size:17px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-about p{font-size:13px;line-height:1.9;color:#9FBBB0;max-width:340px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.site-footer ul{display:flex;flex-direction:column;gap:11px}
.site-footer ul a{color:#C7D9D1;font-size:14px}
.site-footer ul a:hover{color:var(--c-accent-400)}
.footer-bottom{
  border-top:1px solid rgba(199,217,209,.16);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA89D;
}
.footer-bottom a{color:#8FA89D}
.footer-bottom a:hover{color:var(--c-accent-400)}

/* 响应式 */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:991px){
  .header-search{max-width:320px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 300px}
  .article-head h1{font-size:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .topbar{display:none}
  .section{padding:48px 0}
  .header-inner{flex-wrap:wrap;gap:14px;padding-top:14px;padding-bottom:14px}
  .header-search{order:3;flex:1 1 100%;max-width:none}
  .header-actions{margin-left:auto;gap:12px}
  .link-login{display:none}
  .nav-toggle{display:inline-flex}
  .cat-nav__inner{display:none;flex-direction:column;align-items:stretch;gap:0;overflow:visible;padding:6px 0 12px}
  .cat-nav.is-open .cat-nav__inner{display:flex}
  .cat-nav__inner a{margin-right:0;padding:12px 2px;border-bottom:1px solid var(--c-border)}
  .cat-nav__inner a.is-active{border-bottom-color:var(--c-border)}
  .cat-nav__inner a.is-active::after{content:"";display:block;width:28px;height:2px;background:var(--c-accent-600);margin-top:8px}
  .article-wrap{padding:36px 0 56px}
  .article-head h1{font-size:28px;line-height:1.5}
  .article-body{font-size:17px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-strip__inner{padding:32px 24px}
  .cta-strip h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .brand__text{font-size:16px}
  .brand__mark svg{width:26px;height:26px}
  .btn{width:100%}
  .btn--sm{width:auto}
  .cta-strip__actions{width:100%;flex-direction:column}
  .article-meta{gap:12px;font-size:13px}
  .article-body h2{padding-left:14px;font-size:20px}
  .article-body h2::before{height:18px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:9px 10px}
}

/* roulang page: category1 */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761E;
  --c-err:#B23A32;
  --c-gold:#C9A26B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow","Helvetica Neue",Arial,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --sp-section:80px;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-900);
  background:var(--c-bg);
  background-image:radial-gradient(rgba(20,33,28,.022) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand-700);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease}
a:hover{color:var(--c-accent-600);text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.01em;color:var(--c-ink-900)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-brand-700);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{height:32px;background:var(--c-brand-900);color:#D7E4DD;font-size:13px;line-height:32px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar__note{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar__link{color:#F3E6DA;font-size:13px}
.topbar__link:hover{color:#fff;text-decoration:underline}
.topbar__seps{display:flex;align-items:center;gap:14px;flex:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--c-border);transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header__inner{
  display:flex;align-items:center;gap:24px;min-height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand__mark{
  width:42px;height:42px;border-radius:var(--r-md);flex:none;
  background:linear-gradient(150deg,var(--c-brand-700),var(--c-brand-500));
  display:grid;place-items:center;box-shadow:var(--sh-1);
}
.brand__mark svg{width:24px;height:24px;display:block}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-size:17px;font-weight:700;color:var(--c-brand-900);letter-spacing:.01em}
.brand__text em{font-style:normal;font-size:12px;color:var(--c-ink-300);letter-spacing:.08em;margin-top:2px}
.search{
  flex:1 1 auto;max-width:520px;min-width:220px;position:relative;display:flex;align-items:center;
  height:44px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-pill);
  padding-left:40px;padding-right:4px;box-shadow:var(--sh-1);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12)}
.search__icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--c-ink-300)}
.search input{
  flex:1;border:0;background:transparent;height:42px;min-width:0;outline:none;font-size:15px;
}
.search input::placeholder{color:var(--c-ink-300)}
.search button{
  flex:none;height:36px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .16s ease,transform .16s ease;
}
.search button:hover{background:var(--c-brand-500)}
.search button:active{transform:translateY(1px)}
.header__actions{display:flex;align-items:center;gap:16px;flex:none}
.link-login{font-size:15px;font-weight:600;color:var(--c-brand-700)}
.link-login:hover{color:var(--c-accent-600)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:var(--c-surface);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-brand-900);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-brand-900);transition:transform .18s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 分类导航 ---------- */
.cat-nav{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.cat-nav__inner{display:flex;gap:8px;overflow-x:auto;padding-top:8px;padding-bottom:8px;scrollbar-width:thin}
.cat-nav__inner a{
  flex:none;padding:8px 16px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  color:var(--c-ink-500);background:transparent;white-space:nowrap;
  transition:background-color .16s ease,color .16s ease;
}
.cat-nav__inner a:hover{background:var(--c-brand-100);color:var(--c-brand-700);text-decoration:none}
.cat-nav__inner a.is-active{background:var(--c-brand-700);color:#fff}
.cat-nav__inner a.is-active:hover{background:var(--c-brand-700);color:#fff}

/* ---------- 移动端面板 ---------- */
.mobile-panel{display:none;border-top:1px solid var(--c-border);background:var(--c-surface);padding:14px 0 18px}
.mobile-panel.is-open{display:block}
.mobile-panel .container{display:flex;flex-direction:column;gap:6px}
.mobile-search{display:flex;align-items:center;height:46px;border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-bg);margin-bottom:8px;padding-left:40px;position:relative}
.mobile-search svg{position:absolute;left:14px;width:18px;height:18px;color:var(--c-ink-300)}
.mobile-search input{flex:1;border:0;background:transparent;height:44px;outline:none;padding-right:12px}
.mobile-panel a{padding:11px 4px;font-size:15px;font-weight:600;color:var(--c-ink-900);border-bottom:1px dashed var(--c-border)}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.is-active{color:var(--c-accent-600)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:340px;display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(11,47,39,.88) 0%,rgba(11,47,39,.70) 52%,rgba(11,47,39,.52) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero__inner{padding-top:44px;padding-bottom:44px;max-width:820px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.85)}
.crumb a:hover{color:#fff}
.crumb span{color:rgba(255,255,255,.55)}
.hero h1{
  font-family:var(--font-serif);font-size:40px;line-height:1.3;color:#fff;letter-spacing:-.01em;
}
.hero__sub{margin-top:14px;font-size:16px;color:rgba(255,255,255,.86);max-width:620px}
.hero__chips{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:9px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.28);
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease;
}
.chip:hover{background:rgba(255,255,255,.26);transform:translateY(-1px)}
.chip.is-active{background:var(--c-accent-600);border-color:var(--c-accent-600);color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0}
.section--tight{padding-top:56px}
.section--paper{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section__head h2{font-size:28px;position:relative;padding-left:16px}
.section__head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-brand-700);
}
.section__desc{margin-top:10px;font-size:15px;color:var(--c-ink-500);max-width:720px}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--c-jade-500);font-weight:700;text-transform:uppercase;margin-bottom:8px}
.divider-gold{height:1px;background:linear-gradient(90deg,rgba(201,162,107,.55),rgba(201,162,107,0));margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn--accent{background:var(--c-accent-600);color:#fff;box-shadow:var(--sh-1)}
.btn--accent:hover{background:var(--c-accent-400);color:#fff;transform:translateY(-1px);text-decoration:none;box-shadow:var(--sh-2)}
.btn--accent:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--c-brand-700);border-color:var(--c-brand-700)}
.btn--ghost:hover{background:var(--c-brand-100);color:var(--c-brand-700);text-decoration:none}
.btn--light{background:#fff;color:var(--c-brand-700)}
.btn--light:hover{background:var(--c-accent-100);color:var(--c-accent-600);text-decoration:none}
.btn--sm{height:36px;padding:0 16px;font-size:13px;border-radius:var(--r-sm)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.pcard{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DAD3C4}
.pcard__media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-100)}
.pcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease}
.pcard:hover .pcard__media img{transform:scale(1.03)}
.badge{
  position:absolute;left:12px;top:12px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(11,47,39,.86);color:#fff;font-size:12px;letter-spacing:.02em;font-weight:600;
}
.pcard__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.pcard__body h3{font-size:19px;line-height:1.45}
.pcard__body h3 a{color:var(--c-ink-900)}
.pcard__body h3 a:hover{color:var(--c-brand-700);text-decoration:none}
.pcard__body p{margin-top:10px;font-size:14px;color:var(--c-ink-500);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pcard__meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-ink-300);border-top:1px dashed var(--c-border);
}
.pcard__meta a{font-weight:600;font-size:13px;color:var(--c-brand-700)}
.pcard__meta a:hover{color:var(--c-accent-600)}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split + .split{margin-top:64px}
.split__media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);position:relative}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split__num{
  font-family:var(--font-serif);font-size:52px;line-height:1;color:var(--c-gold);opacity:.85;
}
.split h3{font-size:24px;margin-top:12px}
.split p{margin-top:14px;color:var(--c-ink-500);font-size:15.5px}
.split ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.split li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-900)}
.split li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--c-brand-100);border:2px solid var(--c-brand-500);
}
.split--reverse .split__media{order:2}

/* ---------- 流程时间线 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.steps::before{
  content:"";position:absolute;left:0;right:0;top:26px;height:1px;background:var(--c-border);
}
.step{position:relative;padding-top:64px}
.step__no{
  position:absolute;top:0;left:0;width:52px;height:52px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);box-shadow:var(--sh-1);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:700;font-size:18px;color:var(--c-brand-700);
}
.step h3{font-size:17px}
.step p{margin-top:8px;font-size:14px;color:var(--c-ink-500);line-height:1.8}

/* ---------- 场景标签列表 ---------- */
.tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.tag{
  padding:10px 18px;border-radius:var(--r-pill);background:var(--c-brand-100);
  color:var(--c-brand-700);font-size:14px;font-weight:600;border:1px solid #CFE2D8;
}
.tag--accent{background:var(--c-accent-100);color:var(--c-accent-600);border-color:#F1D8C8}
.scene{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.scene__item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease;
}
.scene__item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.scene__item h3{font-size:17px;display:flex;align-items:center;gap:10px}
.scene__item h3 span{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-accent-600);
  background:var(--c-accent-100);border-radius:var(--r-sm);padding:2px 8px;
}
.scene__item p{margin-top:10px;font-size:14.5px;color:var(--c-ink-500)}

/* ---------- 说明段 ---------- */
.note-band{
  background:var(--c-brand-100);border-radius:var(--r-xl);padding:36px 40px;border:1px solid #CFE2D8;
}
.note-band h2{font-size:22px}
.note-band p{margin-top:14px;font-size:15.5px;color:#2C3F38}
.note-band p + p{margin-top:12px}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px}
.faq details{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .18s ease;
}
.faq details[open]{box-shadow:var(--sh-2)}
.faq summary{
  list-style:none;cursor:pointer;position:relative;display:flex;align-items:center;
  min-height:56px;padding:14px 48px 14px 20px;font-size:16px;font-weight:600;color:var(--c-ink-900);
  border-left:3px solid var(--c-brand-700);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:20px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--c-ink-500);border-bottom:2px solid var(--c-ink-500);
  transform:translateY(-70%) rotate(45deg);transition:transform .18s ease;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq summary:hover{color:var(--c-brand-700)}
.faq .faq__body{padding:4px 22px 20px;background:#FCFAF6;font-size:16px;line-height:1.85;color:var(--c-ink-500);border-top:1px dashed var(--c-border)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--c-brand-900) 0%,var(--c-brand-700) 58%,var(--c-brand-500) 100%);
  color:#fff;border-radius:var(--r-xl);padding:48px 48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;font-size:28px}
.cta-band p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:520px}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-list li{position:relative;padding-left:24px;font-size:14.5px;color:rgba(255,255,255,.9)}
.cta-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:50%;
  background:rgba(217,116,66,.28);border:2px solid var(--c-accent-400);
}
.form-card{background:#fff;border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2)}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--c-ink-900);margin-bottom:8px}
.form-card input{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-border);border-radius:var(--r-md);
  background:#FCFAF6;outline:none;transition:border-color .16s ease,box-shadow .16s ease;
}
.form-card input::placeholder{color:var(--c-ink-300)}
.form-card input:focus{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12);background:#fff}
.form-card .form-row{margin-bottom:16px}
.form-card .btn{width:100%}
.form-hint{margin-top:12px;font-size:13px;color:var(--c-ink-300);line-height:1.7}
.form-ok{margin-top:12px;font-size:13.5px;color:var(--c-ok);display:none;align-items:center;gap:6px}
.form-ok.is-visible{display:flex}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-900);color:#CBD9D3;margin-top:88px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-grid h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-grid p{font-size:14px;line-height:1.85;color:#A9BDB5;max-width:320px}
.footer-grid ul{display:flex;flex-direction:column;gap:10px}
.footer-grid ul a{font-size:14px;color:#CBD9D3}
.footer-grid ul a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#93A9A1;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:40px}
  .steps::before{display:none}
}
@media (max-width:1024px){
  .split{gap:32px}
  .split h3{font-size:22px}
  .hero h1{font-size:34px}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  :root{--sp-section:56px}
  .search{display:none}
  .header__actions .btn{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header__inner{min-height:64px;gap:16px}
  .cat-nav{display:none}
  .faq{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .split--reverse .split__media{order:0}
  .split + .split{margin-top:48px}
}
@media (max-width:768px){
  .topbar{display:none}
  .container{padding:0 16px}
  .hero{min-height:400px}
  .hero__inner{padding-top:36px;padding-bottom:36px}
  .hero h1{font-size:29px}
  .hero__sub{font-size:15px}
  .section__head h2{font-size:24px}
  .note-band{padding:26px 22px}
  .cta-band{padding:32px 22px;border-radius:var(--r-lg)}
  .cta-band h2{font-size:23px}
  .pcard__body{padding:18px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .grid-3{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .btn{height:46px;padding:0 20px}
  .hero__chips .chip{font-size:13px;padding:8px 14px}
}

/* roulang page: category2 */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761E;
  --c-err:#B23A32;
  --c-gold:#C9A26B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-900);
  background-color:var(--c-bg);
  background-image:
    radial-gradient(rgba(201,162,107,.10) 1px, transparent 1px),
    radial-gradient(rgba(20,69,58,.05) 1px, transparent 1px);
  background-size:26px 26px, 26px 26px;
  background-position:0 0, 13px 13px;
}
img{max-width:100%;display:block}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent-600);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-brand-700);outline-offset:2px;border-radius:var(--r-sm)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer}
h1{font-size:36px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.005em}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 顶部信息条 */
.topbar{background:var(--c-brand-900);color:#D8E6E0;font-size:14px;line-height:32px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:32px}
.topbar__note{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar__note b{color:#fff;font-weight:600}
.topbar__link{color:#EBD9C8;text-decoration:none}
.topbar__link:hover{color:#fff;text-decoration:underline}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header__inner{
  display:flex;align-items:center;gap:24px;
  min-height:var(--nav-h);
  padding-top:12px;padding-bottom:12px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.logo:hover{text-decoration:none}
.logo__mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--c-brand-700),var(--c-brand-500));
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.logo__mark svg{width:22px;height:22px}
.logo__text{display:flex;flex-direction:column;line-height:1.2}
.logo__name{font-size:17px;font-weight:700;color:var(--c-brand-900);letter-spacing:.01em}
.logo__sub{font-size:12px;color:var(--c-ink-300);letter-spacing:.02em}
.header__search{
  flex:1 1 auto;max-width:520px;
  display:flex;align-items:center;gap:8px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-pill);
  padding:5px 6px 5px 16px;
  box-shadow:var(--sh-1);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.header__search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12)}
.header__search svg{flex:0 0 auto;width:18px;height:18px;color:var(--c-ink-300)}
.header__search input{
  flex:1 1 auto;border:0;background:transparent;height:34px;
  font-size:15px;color:var(--c-ink-900);min-width:0;
}
.header__search input::placeholder{color:var(--c-ink-300)}
.header__search button{
  flex:0 0 auto;border:0;height:34px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:background-color .18s ease;
}
.header__search button:hover{background:var(--c-brand-500)}
.header__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.header__login{font-size:15px;font-weight:600;color:var(--c-brand-700)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:var(--r-md);
  padding:0 22px;height:44px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background-color .18s ease, transform .18s ease, color .18s ease, border-color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--c-accent-600);color:#fff}
.btn--primary:hover{background:var(--c-accent-400);color:#fff}
.btn--ghost{background:transparent;color:var(--c-brand-700);border:1px solid var(--c-jade-500)}
.btn--ghost:hover{background:var(--c-brand-100);color:var(--c-brand-900)}
.btn--solid{background:var(--c-brand-700);color:#fff}
.btn--solid:hover{background:var(--c-brand-500);color:#fff}
.btn--sm{height:36px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.btn[disabled]{opacity:.55;cursor:not-allowed;pointer-events:none}
.header__burger{
  display:none;flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-border);background:var(--c-surface);
  align-items:center;justify-content:center;
}
.header__burger svg{width:20px;height:20px;color:var(--c-brand-700)}
.header__mobile-search{display:none;padding-bottom:12px}

/* 分类导航 */
.cat-nav{background:var(--c-surface);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:50}
.cat-nav__inner{display:flex;align-items:center;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:thin}
.cat-nav a{
  flex:0 0 auto;font-size:14px;color:var(--c-ink-500);
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.cat-nav a:hover{background:var(--c-brand-100);color:var(--c-brand-900);text-decoration:none}
.cat-nav a.is-active{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;font-weight:600}

/* 面包屑 */
.crumbs{font-size:14px;color:var(--c-ink-300);padding:18px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs li::after{content:"/";margin-left:8px;color:var(--c-ink-300)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--c-ink-500)}
.crumbs a:hover{color:var(--c-accent-600)}
.crumbs [aria-current]{color:var(--c-ink-900);font-weight:600}

/* 小 Hero */
.page-hero{
  position:relative;margin-top:20px;border-radius:var(--r-xl);overflow:hidden;
  min-height:320px;display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,47,39,.88) 0%,rgba(11,47,39,.70) 48%,rgba(11,47,39,.42) 100%);
}
.page-hero__inner{position:relative;z-index:2;padding:56px 56px;max-width:760px}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:#F0E3D4;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;
}
.page-hero h1{
  font-family:var(--font-serif);color:#fff;font-size:40px;line-height:1.24;letter-spacing:-.01em;
}
.page-hero h1 em{font-style:normal;color:#F2C79B}
.page-hero__sub{color:#D5E4DE;font-size:17px;line-height:1.8;margin-top:16px;max-width:600px}
.page-hero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:#EAF3EF;
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);padding:6px 14px;background:rgba(255,255,255,.08);
}
.chip--accent{background:var(--c-accent-600);border-color:var(--c-accent-600);color:#fff;font-weight:600}

/* 主体 */
.layout{display:grid;grid-template-columns:248px minmax(0,1fr);gap:48px;padding:64px 0 8px;align-items:start}
.toc{
  position:sticky;top:132px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
}
.toc h3{font-size:15px;color:var(--c-ink-900);letter-spacing:.02em;padding-bottom:12px;border-bottom:1px solid var(--c-border);margin-bottom:12px}
.toc ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc}
.toc a{
  display:block;font-size:14px;color:var(--c-ink-500);
  padding:8px 10px;border-radius:var(--r-sm);border-left:2px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc a:hover{background:var(--c-brand-100);color:var(--c-brand-900);text-decoration:none}
.toc a.is-current{background:var(--c-brand-100);color:var(--c-brand-900);border-left-color:var(--c-accent-600);font-weight:600}
.toc__note{font-size:13px;color:var(--c-ink-300);line-height:1.7;margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-border)}

.article-body{max-width:820px}
.section{padding-bottom:56px}
.section + .section{padding-top:0}
.section__head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.section__num{
  font-family:var(--font-serif);font-size:28px;line-height:1;color:var(--c-gold);font-weight:700;
}
.section h2{position:relative}
.article-body p{font-size:17px;line-height:1.95;color:var(--c-ink-900);margin-bottom:1.2em}
.article-body p.lead{font-size:17px;color:var(--c-ink-500)}
.article-body strong{color:var(--c-brand-900);font-weight:600}
.inline-list{display:flex;flex-direction:column;gap:10px;margin:6px 0 24px}
.inline-list li{
  position:relative;padding-left:26px;font-size:16px;line-height:1.85;color:var(--c-ink-900);
}
.inline-list li::before{
  content:"";position:absolute;left:6px;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--c-jade-500);
}
.inline-list--num{counter-reset:il}
.inline-list--num li::before{
  content:counter(il);counter-increment:il;
  left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:var(--c-brand-100);color:var(--c-brand-700);
  font-family:var(--font-num);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.inline-list--num li{padding-left:32px}
.quote{
  border-left:4px solid var(--c-brand-500);
  background:#FBF9F4;border-radius:0 var(--r-md) var(--r-md) 0;
  padding:18px 22px;margin:0 0 24px;
  font-size:16px;line-height:1.9;color:var(--c-ink-500);
}
.quote b{color:var(--c-brand-900)}

/* 图文块 */
.figure-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);margin-bottom:32px;
}
.figure-row__img{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9}
.figure-row__img img{width:100%;height:100%;object-fit:cover}
.figure-row h3{margin-bottom:10px}
.figure-row p{font-size:15px;line-height:1.85;color:var(--c-ink-500);margin:0}

/* 权益对比表 */
.table-wrap{
  border:1px solid var(--c-border);border-radius:var(--r-lg);
  background:var(--c-surface);box-shadow:var(--sh-1);overflow-x:auto;margin-bottom:18px;
}
.plan-table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}
.plan-table th,.plan-table td{
  padding:14px 18px;font-size:15px;text-align:center;border-bottom:1px solid var(--c-border);
}
.plan-table thead th{
  position:sticky;top:0;z-index:5;
  background:#FBF9F4;vertical-align:top;
  border-bottom:1px solid var(--c-border);
}
.plan-table tbody th{
  text-align:left;font-weight:600;color:var(--c-brand-900);
  background:var(--c-surface);position:sticky;left:0;z-index:3;
  min-width:180px;box-shadow:1px 0 0 var(--c-border);
}
.plan-table tbody tr:nth-child(even) td{background:#FCFBF8}
.plan-table tbody tr:hover td{background:var(--c-brand-100)}
.plan-table tbody tr:last-child th,.plan-table tbody tr:last-child td{border-bottom:0}
.plan-name{font-size:16px;font-weight:700;color:var(--c-brand-900);display:block}
.plan-price{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--c-accent-600);line-height:1.3;margin-top:4px;
}
.plan-price small{font-size:13px;font-weight:500;color:var(--c-ink-300);margin-left:2px}
.plan-note{display:block;font-size:13px;color:var(--c-ink-300);margin-top:2px}
.plan-table .col-best{background:#F4FAF7}
.plan-table thead .col-best{background:#EAF5F0;border-top:3px solid var(--c-accent-600);border-radius:12px 12px 0 0}
.badge-best{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;
  color:#fff;background:var(--c-accent-600);border-radius:var(--r-pill);
  padding:2px 10px;margin-bottom:6px;
}
.plan-cta{margin-top:10px}
.mark{font-family:var(--font-num);font-weight:700;font-size:16px}
.mark--yes{color:var(--c-ok)}
.mark--no{color:var(--c-ink-300);font-weight:500}
.mark--part{color:var(--c-warn);font-weight:600}
.table-foot{font-size:14px;color:var(--c-ink-300);line-height:1.8;margin-bottom:40px}

/* CTA */
.cta-band{
  background:var(--c-brand-900);
  border-radius:var(--r-xl);
  padding:48px;
  margin:8px 0 0;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(185,80,31,.45),transparent 68%);
}
.cta-band__grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:center}
.cta-band h2{color:#fff;font-size:28px}
.cta-band p{color:#C9DCD5;font-size:16px;line-height:1.9;margin-top:12px;max-width:520px}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:#D5E4DE;align-items:flex-start}
.cta-points svg{flex:0 0 auto;width:18px;height:18px;color:var(--c-jade-500);margin-top:5px}
.form-card{
  background:var(--c-surface);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3);
}
.form-card h3{font-size:18px;margin-bottom:6px}
.form-card p.small{font-size:14px;color:var(--c-ink-500);line-height:1.75;margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-brand-900);margin-bottom:8px}
.field input{
  width:100%;height:46px;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:0 14px;font-size:15px;color:var(--c-ink-900);background:#fff;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.field input::placeholder{color:var(--c-ink-300)}
.field input:focus{border-color:var(--c-brand-500);outline:none;box-shadow:0 0 0 3px rgba(31,99,80,.12)}
.form-card .btn{width:100%}
.form-hint{font-size:13px;color:var(--c-ink-300);line-height:1.7;margin-top:12px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item[open]{border-color:var(--c-jade-500);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  min-height:56px;display:flex;align-items:center;
  padding:14px 52px 14px 22px;
  font-size:16px;font-weight:600;color:var(--c-brand-900);
  border-left:3px solid var(--c-brand-500);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;
  width:9px;height:9px;margin-top:-6px;
  border-right:2px solid var(--c-brand-700);border-bottom:2px solid var(--c-brand-700);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
.faq-body{padding:0 22px 20px 22px;background:#FBF9F4}
.faq-body p{font-size:16px;line-height:1.9;color:var(--c-ink-500);margin:0}

/* 页脚 */
.site-footer{background:var(--c-brand-900);color:#C9DCD5;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:.02em}
.site-footer p{font-size:14px;line-height:1.85;color:#A9C2BA;max-width:320px}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul a{font-size:14px;color:#C9DCD5}
.site-footer ul a:hover{color:#F2C79B;text-decoration:none}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA9A1;
}
.footer-bottom a{color:#C9DCD5}

/* 骨架/加载 */
.skeleton{background:#EFEBE2;border-radius:var(--r-md);animation:breathe 1.4s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.55}}

/* 响应式 */
@media (max-width:1199px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:32px}
  .page-hero__inner{padding:48px 40px}
}
@media (max-width:991px){
  .header__search{max-width:none}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:48px}
  .toc{position:static;order:0}
  .toc ol{flex-direction:row;flex-wrap:wrap;gap:6px}
  .toc a{border-left:0;border:1px solid var(--c-border);border-radius:var(--r-pill);padding:6px 14px}
  .toc a.is-current{border-color:var(--c-brand-500);background:var(--c-brand-100)}
  .toc__note{display:none}
  .cta-band__grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero h1{font-size:34px}
}
@media (max-width:768px){
  .topbar{display:none}
  .header__inner{min-height:64px;padding-top:10px;padding-bottom:10px;gap:12px}
  .header__search{display:none}
  .header__login{display:none}
  .header__burger{display:flex}
  .header__mobile-search{display:block}
  .header__mobile-search form{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-pill);padding:5px 6px 5px 16px}
  .header__mobile-search input{flex:1;border:0;height:34px;font-size:15px;min-width:0;background:transparent}
  .header__mobile-search button{border:0;height:34px;padding:0 18px;border-radius:var(--r-pill);background:var(--c-brand-700);color:#fff;font-size:14px;font-weight:600}
  .page-hero{min-height:360px;border-radius:var(--r-lg)}
  .page-hero__inner{padding:36px 24px}
  .page-hero h1{font-size:28px}
  .page-hero__sub{font-size:15px}
  .article-body p,.article-body.lead{font-size:16px}
  .figure-row{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:32px 24px;border-radius:var(--r-lg)}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px;margin-top:64px}
  .section{padding-bottom:44px}
}
@media (max-width:520px){
  h1{font-size:26px}
  h2{font-size:22px}
  h3{font-size:18px}
  .container{padding:0 16px}
  .logo__sub{display:none}
  .header__burger{width:40px;height:40px}
  .page-hero h1{font-size:25px}
  .btn{width:100%}
  .btn--sm{width:auto}
  .header__actions .btn{width:auto;padding:0 16px;height:40px;font-size:14px}
  .plan-table th,.plan-table td{padding:12px 14px;font-size:14px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
/* ===== 设计令牌 ===== */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761E;
  --c-err:#B23A32;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --gold-line:rgba(201,162,107,.4);
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-900);
  background:var(--c-bg);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-accent-600);text-decoration:underline;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,label:focus-visible{
  outline:2px solid var(--c-brand-500);outline-offset:2px;border-radius:var(--r-sm);
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--c-brand-900);color:#D9E7E1;font-size:13px;line-height:32px;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar__notice{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__login{color:#EAF3EF;text-decoration:none;}
.topbar__login:hover{color:#F3C6AC;text-decoration:underline;}

/* ===== 主导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);box-shadow:var(--sh-1);}
.nav-cb{display:none;}
.mainbar{border-bottom:1px solid var(--c-border);}
.mainbar__inner{display:flex;align-items:center;gap:28px;padding-top:14px;padding-bottom:14px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo__mark{
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--c-brand-700);display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo__mark svg{width:22px;height:22px;}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__text b{font-size:17px;font-weight:700;color:var(--c-brand-900);letter-spacing:.02em;}
.logo__text i{font-style:normal;font-size:11px;color:var(--c-jade-500);letter-spacing:.24em;font-family:var(--font-num);}

.search{
  flex:1 1 auto;max-width:520px;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 6px 0 14px;background:var(--c-bg);
  border:1px solid var(--c-border);border-radius:var(--r-pill);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12);}
.search svg{width:18px;height:18px;flex:0 0 auto;stroke:var(--c-ink-300);}
.search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:15px;}
.search input::placeholder{color:var(--c-ink-300);}
.search button{
  flex:0 0 auto;height:34px;padding:0 18px;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;font-size:14px;transition:background-color .18s ease;
}
.search button:hover{background:var(--c-brand-500);}
.mainbar__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto;}
.link-login{font-size:15px;color:var(--c-brand-700);}
.link-login:hover{color:var(--c-accent-600);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn--accent{background:var(--c-accent-600);color:#fff;box-shadow:var(--sh-1);}
.btn--accent:hover{background:var(--c-accent-400);color:#fff;box-shadow:var(--sh-2);}
.btn--brand{background:var(--c-brand-700);color:#fff;}
.btn--brand:hover{background:var(--c-brand-500);color:#fff;}
.btn--ghost{border-color:var(--c-brand-700);color:var(--c-brand-700);background:transparent;}
.btn--ghost:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.btn--sm{height:36px;padding:0 16px;font-size:14px;border-radius:var(--r-sm);}
.nav-burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--c-border);border-radius:var(--r-md);}

/* ===== 分类导航 ===== */
.cat-nav{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.cat-nav__inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;}
.cat-nav__inner::-webkit-scrollbar{display:none;}
.cat-nav a{
  flex:0 0 auto;padding:13px 16px;font-size:15px;color:var(--c-ink-500);
  border-bottom:3px solid transparent;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.cat-nav a:hover{color:var(--c-brand-700);background:var(--c-brand-100);text-decoration:none;}
.cat-nav a.is-active{color:var(--c-brand-900);font-weight:700;border-bottom-color:var(--c-accent-600);}

/* ===== 面包屑 ===== */
.crumb{font-size:13px;color:var(--c-ink-300);padding:18px 0 0;}
.crumb a{color:var(--c-ink-500);}
.crumb span{margin:0 6px;}

/* ===== Hero ===== */
.hero{position:relative;margin-top:18px;border-radius:var(--r-xl);overflow:hidden;min-height:320px;display:flex;align-items:center;box-shadow:var(--sh-2);}
.hero__bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;}
.hero__mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,47,39,.94) 0%,rgba(11,47,39,.80) 48%,rgba(11,47,39,.58) 100%);}
.hero__inner{position:relative;z-index:2;padding:56px 48px;max-width:760px;}
.hero__eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:#CFE3DA;
  background:rgba(127,169,155,.24);border:1px solid rgba(127,169,155,.45);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;
}
.hero h1{
  font-family:var(--font-serif);font-size:36px;line-height:1.32;font-weight:700;
  color:#fff;letter-spacing:-.01em;margin-bottom:14px;
}
.hero__sub{font-size:17px;color:#DCEAE4;line-height:1.8;margin-bottom:26px;max-width:560px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero__meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:20px;border-top:1px solid rgba(201,162,107,.35);}
.hero__meta div{color:#C9DCD4;font-size:13px;}
.hero__meta b{display:block;font-family:var(--font-num);font-size:24px;font-weight:700;color:#fff;line-height:1.3;}

/* ===== 板块通用 ===== */
.section{padding:72px 0;}
.section--tight{padding-top:48px;}
.section__head{max-width:760px;margin-bottom:36px;}
.section__head h2{font-size:28px;line-height:1.4;font-weight:700;color:var(--c-brand-900);margin-bottom:12px;}
.section__head p{font-size:16px;color:var(--c-ink-500);}
.section--dark{background:var(--c-brand-900);color:#D9E7E1;}
.section--dark .section__head h2{color:#fff;}
.section--dark .section__head p{color:#B8CEC5;}
.rule{height:1px;background:var(--gold-line);border:0;margin:0;}

/* ===== 数据条 ===== */
.bars{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);padding:32px 36px;box-shadow:var(--sh-1);}
.bar{display:grid;grid-template-columns:220px 1fr 84px;align-items:center;gap:22px;padding:18px 0;border-bottom:1px dashed var(--c-border);}
.bar:last-child{border-bottom:0;}
.bar__label{font-size:15px;font-weight:600;color:var(--c-ink-900);}
.bar__label small{display:block;font-weight:400;font-size:13px;color:var(--c-ink-300);margin-top:2px;line-height:1.6;}
.bar__track{height:10px;background:var(--c-brand-100);border-radius:var(--r-pill);overflow:hidden;}
.bar__fill{height:100%;background:var(--c-brand-500);border-radius:var(--r-pill);}
.bar__fill--accent{background:var(--c-accent-600);}
.bar__num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--c-brand-700);text-align:right;font-variant-numeric:tabular-nums;}
.bars__note{margin-top:22px;font-size:13px;color:var(--c-ink-300);border-top:1px solid var(--c-border);padding-top:16px;}

/* ===== 时间线 ===== */
.timeline{position:relative;padding-left:0;}
.timeline::before{content:"";position:absolute;top:8px;bottom:8px;left:155px;width:2px;background:var(--c-border);}
.tl-item{position:relative;display:grid;grid-template-columns:140px 1fr;column-gap:64px;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::after{
  content:"";position:absolute;left:150px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--c-surface);border:3px solid var(--c-brand-500);
}
.tl-item__time{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-brand-700);text-align:right;padding-top:1px;font-variant-numeric:tabular-nums;}
.tl-item__body h3{font-size:17px;font-weight:600;color:var(--c-ink-900);margin-bottom:6px;}
.tl-item__body p{font-size:15px;color:var(--c-ink-500);line-height:1.8;}
.tl-item__tag{
  display:inline-block;font-size:12px;letter-spacing:.02em;color:var(--c-brand-700);
  background:var(--c-brand-100);border-radius:var(--r-pill);padding:2px 10px;margin-left:8px;vertical-align:2px;
}

/* ===== 定义列表 ===== */
.defs{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);padding:8px 36px;box-shadow:var(--sh-1);}
.defs div{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--c-border);}
.defs div:last-child{border-bottom:0;}
.defs dt{font-size:15px;font-weight:700;color:var(--c-brand-900);}
.defs dd{font-size:15px;color:var(--c-ink-500);line-height:1.85;}

/* ===== 权限行列表 ===== */
.perm{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);}
.perm__row{display:grid;grid-template-columns:180px 1fr auto;gap:24px;align-items:center;padding:22px 28px;border-bottom:1px solid var(--c-border);}
.perm__row:last-child{border-bottom:0;}
.perm__row:hover{background:#FBFAF6;}
.perm__name{font-size:16px;font-weight:700;color:var(--c-brand-900);}
.perm__name span{display:block;font-family:var(--font-num);font-size:12px;font-weight:600;color:var(--c-ink-300);letter-spacing:.08em;margin-top:2px;}
.perm__desc{font-size:15px;color:var(--c-ink-500);line-height:1.8;}
.perm__row--pick{background:var(--c-accent-100);}
.perm__pick{
  display:inline-block;font-size:12px;color:#fff;background:var(--c-accent-600);
  border-radius:var(--r-pill);padding:2px 10px;margin-left:10px;vertical-align:2px;
}

/* ===== 图卡（单张图文） ===== */
.feature{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-2);}
.feature img{border-radius:var(--r-lg);width:100%;aspect-ratio:16/9;object-fit:cover;}
.feature h3{font-size:20px;font-weight:600;color:var(--c-brand-900);margin-bottom:12px;}
.feature p{font-size:16px;color:var(--c-ink-500);margin-bottom:14px;}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.chip{font-size:13px;color:var(--c-brand-700);background:var(--c-brand-100);border-radius:var(--r-pill);padding:5px 14px;}
.chip--accent{color:var(--c-accent-600);background:var(--c-accent-100);}

/* ===== FAQ ===== */
.faq{display:grid;gap:12px;}
.faq details{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;}
.faq summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px 14px 19px;font-size:16px;font-weight:600;color:var(--c-ink-900);
  border-left:3px solid var(--c-brand-500);cursor:pointer;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"";flex:0 0 auto;width:10px;height:10px;border-right:2px solid var(--c-ink-300);border-bottom:2px solid var(--c-ink-300);transform:rotate(45deg);transition:transform .18s ease;}
.faq details[open] summary::after{transform:rotate(225deg);}
.faq details[open] summary{color:var(--c-brand-700);}
.faq .faq__body{padding:4px 22px 22px 19px;font-size:17px;line-height:1.85;color:var(--c-ink-500);background:#FBFAF6;border-top:1px solid var(--c-border);}

/* ===== CTA ===== */
.cta{background:var(--c-accent-600);border-radius:var(--r-xl);padding:44px 48px;color:#fff;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.cta h2{font-size:28px;line-height:1.4;font-weight:700;margin-bottom:12px;color:#fff;}
.cta p{font-size:16px;color:#FBE4D6;margin-bottom:20px;}
.cta__points{display:grid;gap:10px;}
.cta__points li{font-size:14px;color:#FBE4D6;padding-left:18px;position:relative;}
.cta__points li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:#F6CBAF;}
.cta__form{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.34);border-radius:var(--r-lg);padding:26px;}
.cta__form label{display:block;font-size:14px;color:#FDF1E9;margin-bottom:8px;}
.cta__form input{
  width:100%;height:46px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.55);
  background:#fff;padding:0 16px;font-size:15px;color:var(--c-ink-900);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta__form input::placeholder{color:var(--c-ink-300);}
.cta__form input:focus{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.18);}
.cta__form .btn{width:100%;margin-top:16px;background:var(--c-brand-900);color:#fff;}
.cta__form .btn:hover{background:var(--c-brand-700);}
.cta__tip{margin-top:12px;font-size:13px;color:#FBE4D6;}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-brand-900);color:#B8CEC5;padding:64px 0 0;margin-top:72px;font-size:15px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-grid h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-about p{line-height:1.9;color:#A9C1B8;max-width:340px;}
.footer-grid ul{display:grid;gap:10px;}
.footer-grid ul a{color:#B8CEC5;}
.footer-grid ul a:hover{color:#F3C6AC;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(201,162,107,.28);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA9A0;
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .hero__inner{padding:48px 36px;}
  .feature{grid-template-columns:1fr;gap:28px;}
  .cta{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:991px){
  .section{padding:56px 0;}
  .bar{grid-template-columns:190px 1fr 72px;gap:16px;}
  .perm__row{grid-template-columns:150px 1fr;gap:16px;}
  .perm__row .btn{grid-column:1 / -1;justify-self:start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .topbar{display:none;}
  .mainbar__inner{flex-wrap:wrap;gap:14px;padding-top:12px;padding-bottom:12px;}
  .search{order:3;flex:1 1 100%;max-width:none;height:42px;}
  .mainbar__actions{margin-left:auto;}
  .mainbar__actions .link-login{display:none;}
  .nav-burger{display:flex;}
  .cat-nav{display:none;}
  .nav-cb:checked ~ .cat-nav{display:block;}
  .cat-nav__inner{flex-direction:column;align-items:stretch;overflow:visible;padding-top:6px;padding-bottom:10px;}
  .cat-nav a{padding:12px 16px;border-bottom:0;border-left:3px solid transparent;border-radius:var(--r-sm);}
  .cat-nav a.is-active{border-left-color:var(--c-accent-600);background:var(--c-brand-100);}
  .hero{min-height:360px;border-radius:var(--r-lg);}
  .hero__inner{padding:36px 24px;}
  .hero h1{font-size:28px;line-height:1.36;}
  .hero__sub{font-size:16px;}
  .hero__meta{gap:16px;}
  .section__head h2{font-size:23px;}
  .bars{padding:22px 20px;}
  .bar{grid-template-columns:1fr;gap:10px;}
  .bar__num{text-align:left;font-size:22px;}
  .timeline::before{left:5px;}
  .tl-item{grid-template-columns:1fr;padding-left:32px;row-gap:6px;}
  .tl-item::after{left:0;top:6px;}
  .tl-item__time{text-align:left;}
  .defs{padding:6px 20px;}
  .defs div{grid-template-columns:1fr;gap:6px;}
  .perm__row{padding:20px;}
  .cta{padding:32px 24px;}
  .cta h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .hero h1{font-size:24px;}
  .hero__actions .btn{width:100%;}
  .section__head h2{font-size:21px;}
  .section__head p,.feature p{font-size:15px;}
  .search button{padding:0 14px;}
}

/* roulang page: category4 */
:root{
  --c-brand-900:#0B2F27;
  --c-brand-700:#14453A;
  --c-brand-500:#1F6350;
  --c-brand-100:#E3EFE9;
  --c-accent-600:#B9501F;
  --c-accent-400:#D97442;
  --c-accent-100:#FCEDE3;
  --c-jade-500:#7FA99B;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-border:#E5E0D6;
  --c-ink-900:#14211C;
  --c-ink-500:#5E6B64;
  --c-ink-300:#9AA6A0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761E;
  --c-err:#B23A32;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(20,33,28,.05);
  --sh-2:0 6px 18px rgba(20,33,28,.07);
  --sh-3:0 18px 40px rgba(20,33,28,.10);
  --line-gold:1px solid rgba(201,162,107,.4);
  --sp-section:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-900);
  background-color:var(--c-bg);
  background-image:radial-gradient(rgba(20,69,58,.035) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-accent-600);}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--c-ink-900);}
p{margin:0 0 1.2em;}
ul,ol{margin:0 0 1.2em;padding-left:1.25em;}
li{margin-bottom:.5em;}
button{font-family:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand-700);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:56px 0;}
.section--tint{background:rgba(227,239,233,.45);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-brand-500);font-weight:600;margin-bottom:10px;
}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head p{color:var(--c-ink-500);font-size:15px;margin:0;}
.gold-rule{height:1px;background:rgba(201,162,107,.4);border:0;margin:0;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-brand-900);color:#CBDCD4;height:32px;display:flex;align-items:center;font-size:13px;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar__notice{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent-400);flex:0 0 auto;}
.topbar a{color:#E3EFE9;font-weight:600;}
.topbar a:hover{color:var(--c-accent-400);}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-main{display:flex;align-items:center;gap:24px;padding:14px 24px;flex-wrap:wrap;transition:padding .2s ease;}
.site-header.is-scrolled .header-main{padding-top:9px;padding-bottom:9px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-brand-900);}
.logo:hover{color:var(--c-brand-900);}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--c-brand-700),var(--c-brand-500));
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;line-height:1.2;}
.logo-text em{font-style:normal;color:var(--c-brand-500);}
.nav-search{
  flex:1 1 380px;max-width:520px;min-width:260px;height:44px;
  display:flex;align-items:center;gap:8px;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-pill);
  padding:0 6px 0 16px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12);}
.nav-search__icon{width:18px;height:18px;flex:0 0 auto;color:var(--c-ink-300);}
.nav-search input{flex:1 1 auto;min-width:0;border:0;outline:0;background:transparent;height:42px;font-size:15px;color:var(--c-ink-900);}
.nav-search input::placeholder{color:var(--c-ink-300);}
.nav-search button{
  flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);
  background:var(--c-brand-700);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease;
}
.nav-search button:hover{background:var(--c-brand-500);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.link-login{font-size:15px;font-weight:600;color:var(--c-brand-700);}
.link-login:hover{color:var(--c-accent-600);text-decoration:underline;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-accent{background:var(--c-accent-600);color:#fff;}
.btn-accent:hover{background:var(--c-accent-400);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:var(--c-brand-700);color:var(--c-brand-700);}
.btn-outline:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.btn-light{background:#fff;color:var(--c-brand-900);}
.btn-light:hover{background:var(--c-accent-100);color:var(--c-accent-600);}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.btn--sm{height:36px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--r-md);
  background:var(--c-surface);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-brand-700);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-brand-700);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 分类导航 ---------- */
.cat-nav{border-top:1px solid var(--c-border);background:var(--c-surface);}
.cat-nav__inner{display:flex;align-items:center;gap:6px;padding:6px 24px;overflow-x:auto;-webkit-overflow-scrolling:touch;}
.cat-nav__inner::-webkit-scrollbar{height:0;}
.cat-nav a{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--c-ink-500);
  padding:8px 14px;border-radius:var(--r-pill);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.cat-nav a:hover{background:var(--c-brand-100);color:var(--c-brand-700);}
.cat-nav a.is-active{background:var(--c-brand-700);color:#fff;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--c-ink-300);}
.breadcrumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;}
.breadcrumb li{margin:0;display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--c-ink-300);}
.breadcrumb a{color:var(--c-ink-500);}
.breadcrumb a:hover{color:var(--c-accent-600);}
.breadcrumb [aria-current]{color:var(--c-ink-900);font-weight:600;}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:20px;border-radius:var(--r-xl);overflow:hidden;
  min-height:320px;display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-3);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,47,39,.90) 0%,rgba(11,47,39,.74) 52%,rgba(11,47,39,.52) 100%);
}
.hero__inner{position:relative;z-index:2;padding:56px 0 52px;max-width:820px;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:#D9E8E1;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:18px;font-weight:600;
}
.hero h1{color:#fff;font-family:var(--font-serif);font-size:38px;line-height:1.3;margin-bottom:14px;letter-spacing:-.005em;}
.hero__sub{color:#D3E2DB;font-size:16px;line-height:1.75;max-width:620px;margin-bottom:26px;}
.hero-search{
  display:flex;align-items:center;gap:10px;background:#fff;border-radius:var(--r-pill);
  padding:6px 6px 6px 20px;max-width:700px;box-shadow:var(--sh-2);
}
.hero-search svg{width:20px;height:20px;color:var(--c-ink-300);flex:0 0 auto;}
.hero-search input{flex:1 1 auto;min-width:0;height:48px;border:0;outline:0;background:transparent;font-size:15px;color:var(--c-ink-900);}
.hero-search input::placeholder{color:var(--c-ink-300);}
.hero-search .btn{height:44px;border-radius:var(--r-pill);}

/* ---------- 快捷定位 ---------- */
.quick{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:26px;}
.quick a{
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:14px 10px;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);font-size:14px;font-weight:600;color:var(--c-brand-700);
  box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.quick a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-jade-500);color:var(--c-accent-600);}

/* ---------- 问答 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start;}
.qa{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .18s ease,border-color .18s ease;
}
.qa:hover{box-shadow:var(--sh-2);border-color:rgba(127,169,155,.6);}
.qa summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:56px;padding:14px 18px 14px 20px;position:relative;
}
.qa summary::-webkit-details-marker{display:none;}
.qa summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--c-brand-500);border-radius:0 3px 3px 0;
}
.qa summary h3{font-size:17px;line-height:1.55;font-weight:600;margin:0;flex:1 1 auto;}
.qa__chev{width:18px;height:18px;flex:0 0 auto;color:var(--c-jade-500);transition:transform .2s ease;}
.qa[open] .qa__chev{transform:rotate(180deg);}
.qa[open] summary h3{color:var(--c-brand-700);}
.qa__body{padding:4px 20px 20px 20px;background:rgba(247,244,238,.7);border-top:1px solid var(--c-border);}
.qa__body p{font-size:16px;line-height:1.85;color:var(--c-ink-900);margin:14px 0 0;}
.qa__body p:first-child{margin-top:14px;}
.qa__body ul{margin:12px 0 0;padding-left:20px;font-size:15px;color:var(--c-ink-500);}
.qa__body li{margin-bottom:6px;}
.qa__body a{font-weight:600;}

/* ---------- 术语表 ---------- */
.glossary-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:40px;align-items:start;}
.glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;margin:0;}
.glossary__item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;
}
.glossary__item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.glossary dt{
  font-size:16px;font-weight:700;color:var(--c-brand-700);margin-bottom:6px;
  display:flex;align-items:center;gap:8px;
}
.glossary dt::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent-600);flex:0 0 auto;}
.glossary dd{margin:0;font-size:14px;line-height:1.8;color:var(--c-ink-500);}
.side-figure{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.side-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-figure__body{padding:20px;}
.side-figure__body h3{font-size:18px;margin-bottom:8px;}
.side-figure__body p{font-size:14px;color:var(--c-ink-500);margin:0 0 14px;}
.side-figure__body .btn{width:100%;}

/* ---------- 处理流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);padding:26px 22px 22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step__num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:700;line-height:1;color:var(--c-brand-100);
  display:block;margin-bottom:10px;letter-spacing:-.02em;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--c-ink-500);line-height:1.8;margin:0;}
.step__line{height:1px;background:rgba(201,162,107,.4);margin:16px 0 14px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--c-brand-900) 0%,var(--c-brand-700) 62%,var(--c-brand-500) 100%);
  border-radius:var(--r-xl);padding:48px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:44px;align-items:center;box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:#CBDCD4;font-size:15px;line-height:1.85;margin:0;}
.cta-notes{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px;}
.cta-notes li{display:flex;gap:10px;align-items:flex-start;color:#D9E8E1;font-size:14px;margin:0;}
.cta-notes svg{width:18px;height:18px;flex:0 0 auto;color:var(--c-accent-400);margin-top:3px;}
.cta-form{background:var(--c-surface);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2);}
.cta-form h3{font-size:18px;margin-bottom:6px;}
.cta-form p{font-size:14px;color:var(--c-ink-500);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-ink-900);}
.field input{
  width:100%;height:46px;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:0 14px;font-size:15px;background:var(--c-surface);color:var(--c-ink-900);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--c-ink-300);}
.field input:focus{outline:0;border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(31,99,80,.12);}
.field--error input{border-color:var(--c-err);box-shadow:0 0 0 3px rgba(178,58,50,.10);}
.field__hint{display:flex;gap:6px;align-items:center;color:var(--c-err);font-size:14px;margin-top:8px;font-weight:600;}
.field__note{font-size:13px;color:var(--c-ink-300);margin:10px 0 0;text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-900);color:#B9CCC4;margin-top:88px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700;}
.site-footer p{color:#9FB5AC;font-size:14px;line-height:1.85;margin:0;max-width:340px;}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a{color:#B9CCC4;font-size:14px;}
.site-footer a:hover{color:var(--c-accent-400);text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:#8FA69C;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .quick{grid-template-columns:repeat(3,1fr);}
  .glossary-layout{grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:28px;}
}
@media (max-width:991px){
  :root{--sp-section:64px;}
  .hero h1{font-size:32px;}
  .qa-grid{grid-template-columns:minmax(0,1fr);}
  .glossary-layout{grid-template-columns:minmax(0,1fr);}
  .glossary{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:minmax(0,1fr);gap:30px;padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .topbar{display:none;}
  .header-main{padding:12px 16px;gap:12px;}
  .logo-text{font-size:15px;}
  .nav-toggle{display:flex;margin-left:auto;order:2;}
  .header-actions{margin-left:0;order:3;gap:10px;}
  .header-actions .link-login{display:none;}
  .header-actions .btn{padding:0 16px;height:40px;font-size:14px;}
  .nav-search{order:4;flex:1 1 100%;max-width:100%;min-width:0;}
  .cat-nav{display:none;}
  .cat-nav.is-open{display:block;}
  .cat-nav__inner{padding:8px 16px;flex-wrap:wrap;gap:8px;}
  .container{padding:0 16px;}
  .hero{min-height:360px;border-radius:var(--r-lg);}
  .hero__inner{padding:44px 0 40px;}
  .hero h1{font-size:28px;}
  .hero-search{flex-wrap:wrap;padding:12px;border-radius:var(--r-lg);}
  .hero-search input{height:42px;width:100%;flex:1 1 100%;}
  .hero-search .btn{width:100%;border-radius:var(--r-md);}
  .quick{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:minmax(0,1fr);}
  .glossary{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;padding:40px 0 30px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  :root{--sp-section:48px;}
  .logo-mark{width:36px;height:36px;}
  .logo-text{font-size:14px;}
  .hero h1{font-size:24px;}
  .hero__sub{font-size:15px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:26px 20px;border-radius:var(--r-lg);}
  .cta-band h2{font-size:22px;}
  .cta-form{padding:20px;}
  .quick{grid-template-columns:minmax(0,1fr);}
  .btn{width:100%;}
  .nav-search button{width:auto;}
  .q a, .btn--sm{width:auto;}
  .header-actions .btn{width:auto;}
}