/* roulang page: index */
:root{
  --brand:#0E3A32;
  --brand-deep:#08221D;
  --accent:#D9663B;
  --accent-deep:#C85A32;
  --muted:#8A857B;
  --bg:#F7F5F0;
  --sand:#EDEAE3;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --ink:#23201C;
  --ok:#2E7D5B;
  --warn:#C9862B;
  --err:#B4432F;
  --radius:8px;
  --radius-btn:6px;
  --shadow:0 1px 2px rgba(14,58,50,.05), 0 12px 32px -18px rgba(14,58,50,.18);
  --shadow-hover:0 1px 2px rgba(14,58,50,.06), 0 18px 38px -12px rgba(14,58,50,.22);
  --sidebar-w:248px;
  --container:1240px;
  --t120:120ms cubic-bezier(.2,.7,.3,1);
  --t200:200ms cubic-bezier(.2,.7,.3,1);
  --t320:320ms cubic-bezier(.2,.7,.3,1);
  --font-serif:'Noto Serif SC',Georgia,'Songti SC',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono',ui-monospace,monospace;
}
*,*::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(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(217,102,59,.22)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px}

/* ============ App Shell ============ */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:var(--brand);color:rgba(255,255,255,.86);display:flex;flex-direction:column;padding:28px 20px 24px;z-index:60;overflow-y:auto}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:900;font-size:16px;line-height:1.35;color:#fff;letter-spacing:-.01em}
.logo-mark{flex:0 0 auto;width:34px;height:34px;border-radius:7px;background:var(--accent);color:#fff;font-family:var(--font-serif);font-weight:900;font-size:17px;display:flex;align-items:center;justify-content:center}
.nav{display:flex;flex-direction:column;gap:2px;margin-top:34px}
.nav-item{position:relative;display:flex;align-items:center;gap:12px;min-height:46px;padding:0 12px 0 16px;border-radius:6px;font-size:14px;color:rgba(255,255,255,.74);transition:background var(--t200),color var(--t200)}
.nav-item svg{flex:0 0 auto;width:17px;height:17px;opacity:.85}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{color:#fff;background:rgba(255,255,255,.11)}
.nav-item.active svg{opacity:1}
.nav-item.active::before{content:'';position:absolute;left:0;top:9px;bottom:9px;width:2px;background:var(--accent);border-radius:2px}
.side-foot{margin-top:auto;padding-top:28px}
.side-note{font-size:13px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:14px}
.side-note a{border-bottom:1px solid rgba(255,255,255,.28)}
.side-note a:hover{color:#fff;border-color:#fff}
.side-cta{width:100%;height:46px;font-size:14px}

.topbar{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:var(--brand);color:#fff;align-items:center;justify-content:space-between;padding:0 16px;z-index:70}
.topbar .logo{font-size:15px}
.burger{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid rgba(255,255,255,.24);border-radius:6px;cursor:pointer}
.burger span{display:block;width:16px;height:1.5px;background:#fff;position:relative}
.burger span::before,.burger span::after{content:'';position:absolute;left:0;width:16px;height:1.5px;background:#fff}
.burger span::before{top:-5px}
.burger span::after{top:5px}
.scrim{display:none;position:fixed;inset:0;background:rgba(8,34,29,.5);z-index:55}
.scrim.show{display:block}
body.no-scroll{overflow:hidden}

.main{margin-left:var(--sidebar-w)}
.footer{margin-left:var(--sidebar-w)}

/* ============ 通用组件 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;transition:background var(--t200),color var(--t200),transform var(--t200),box-shadow var(--t200),border-color var(--t200)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#0b2f28;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(14,58,50,.05)}
.btn-block{width:100%;height:52px}
.link-arrow{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--brand)}
.link-arrow::after{content:'';position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width var(--t200)}
.link-arrow:hover::after{width:100%}
.link-arrow svg{width:16px;height:16px;transition:transform var(--t200)}
.link-arrow:hover svg{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:var(--sand);color:var(--brand);font-size:13px;line-height:1.5}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--accent);font-weight:500}
.eyebrow::before{content:'';width:18px;height:2px;background:var(--accent);border-radius:2px}
.sec-head{max-width:680px}
.sec-head h2{font-family:var(--font-serif);font-weight:800;font-size:clamp(26px,2.8vw,36px);line-height:1.25;letter-spacing:-.02em;color:var(--brand);margin-top:12px}
.sec-head p{margin-top:14px;font-size:16px;color:#4b4741}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section{padding:96px 0}
.section--sand{background:var(--sand)}
.section--tight{padding:80px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform var(--t200),box-shadow var(--t200),border-color var(--t200)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(217,102,59,.3)}
.js .reveal{opacity:0;transform:translateY(8px);transition:opacity .5s cubic-bezier(.2,.7,.3,1),transform .5s cubic-bezier(.2,.7,.3,1)}
.js .reveal.in{opacity:1;transform:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 96px;background:var(--bg)}
.hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.15;pointer-events:none}
.hero::after{content:'';position:absolute;inset:0;background:rgba(14,58,50,.05);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:900;font-size:19px;color:var(--brand);letter-spacing:-.01em}
.hero-brand .logo-mark{width:32px;height:32px;font-size:16px}
.hero h1{margin-top:20px;font-family:var(--font-serif);font-weight:900;font-size:clamp(34px,4.2vw,56px);line-height:1.15;letter-spacing:-.02em;color:var(--brand)}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:#4b4741;max-width:560px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.hero-trust{margin-top:28px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.hero-trust span.dot{width:1px;height:12px;background:var(--line);display:inline-block}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow);background:var(--sand)}
.hero-tag{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--brand);font-weight:500}

/* ============ 痛点 ============ */
.pain-list{border-top:1px solid var(--line);margin-top:48px}
.pain-item{display:grid;grid-template-columns:120px 1fr;gap:24px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line)}
.pain-num{font-family:var(--font-mono);font-weight:700;font-size:clamp(40px,4.4vw,60px);line-height:1;color:rgba(217,102,59,.22)}
.pain-q{font-family:var(--font-serif);font-weight:700;font-size:clamp(18px,1.6vw,22px);color:var(--brand);letter-spacing:-.01em}
.pain-note{margin-top:28px;font-size:14px;color:var(--muted)}

/* ============ 方案卡 ============ */
.solutions-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:48px}
.sol-stack{display:grid;gap:24px;align-content:start}
.sol-card{padding:32px;display:flex;flex-direction:column}
.sol-large{padding:0;overflow:hidden}
.sol-large img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--sand)}
.sol-body{padding:32px}
.sol-num{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em}
.sol-card h3{margin-top:12px;font-family:var(--font-serif);font-weight:800;font-size:22px;line-height:1.4;letter-spacing:-.01em;color:var(--brand)}
.sol-points{margin-top:18px;display:grid;gap:10px}
.sol-points li{position:relative;padding-left:16px;font-size:15px;line-height:1.8;color:#4b4741}
.sol-points li::before{content:'';position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:rgba(217,102,59,.75)}
.sol-card .link-arrow{margin-top:24px}

/* ============ 数据区 ============ */
.stats{background:var(--brand-deep);color:#fff;padding:88px 0}
.stats .sec-head h2{color:#fff}
.stats .sec-head p{color:rgba(255,255,255,.66)}
.stats .eyebrow{color:var(--accent)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:52px}
.stat{padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.stat-num{font-family:var(--font-mono);font-weight:700;font-size:clamp(40px,4vw,56px);line-height:1;color:#fff;letter-spacing:-.02em}
.stat-label{margin-top:14px;font-size:16px;color:#fff}
.stat-note{margin-top:6px;font-size:13px;color:rgba(255,255,255,.55)}
.stats-actions{margin-top:48px}

/* ============ 分类导流 ============ */
.topics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px}
.topic-card{display:flex;gap:24px;align-items:center;padding:24px}
.topic-card img{width:132px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);flex:0 0 auto;background:var(--sand)}
.topic-card h3{font-family:var(--font-serif);font-weight:800;font-size:20px;color:var(--brand);letter-spacing:-.01em}
.topic-card p{margin-top:8px;font-size:14px;color:#4b4741;line-height:1.75}
.topic-arrow{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--accent)}
.topic-arrow svg{width:16px;height:16px;transition:transform var(--t200)}
.topic-card:hover .topic-arrow svg{transform:translateX(4px)}
.topic-card:hover h3{color:var(--accent)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px}
.news-card{display:flex;flex-direction:column;padding:24px}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}
.news-meta time{font-size:13px;color:var(--muted)}
.news-card h3{margin-top:16px;font-family:var(--font-serif);font-weight:700;font-size:19px;line-height:1.5;color:var(--brand);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t200)}
.news-card:hover h3{color:var(--accent)}
.news-excerpt{margin-top:10px;font-size:15px;line-height:1.8;color:#4b4741;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px}
.news-empty{pargin:44px 0 0;padding:44px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius);background:var(--card)}
.news-empty p{font-size:16px;color:#4b4741}
.news-empty .btn{margin-top:18px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-list{margin-top:0}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:12px 4px;background:none;border:0;text-align:left;font-family:var(--font-serif);font-weight:700;font-size:17px;color:var(--brand);cursor:pointer;transition:color var(--t200)}
.faq-q:hover{color:var(--accent)}
.faq-mark{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform var(--t320)}
.faq-mark::before,.faq-mark::after{content:'';position:absolute;left:50%;top:50%;background:var(--accent);border-radius:2px}
.faq-mark::before{width:14px;height:1.5px;transform:translate(-50%,-50%)}
.faq-mark::after{width:1.5px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-mark{transform:rotate(90deg)}
.faq-item.open .faq-mark::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 40px 22px 4px;font-size:15px;line-height:1.85;color:#4b4741}

/* ============ 表单 ============ */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.form-card{padding:32px}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;color:#4b4741;margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;padding:13px 14px;font-size:15px;line-height:1.5;transition:border-color var(--t200),box-shadow var(--t200)}
.field input,.field select{height:48px;padding-top:0;padding-bottom:0}
.field textarea{min-height:118px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,58,50,.09)}
.field .err-msg{display:none;margin-top:6px;font-size:14px;color:var(--err)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err)}
.field.has-error .err-msg{display:block}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7}
.consent input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand)}
.consent a{border-bottom:1px solid var(--line);color:var(--brand)}
.form-note{margin-top:16px;font-size:14px;color:var(--ok);display:none}
.form-note.show{display:block}
.contact-side ul{margin-top:24px;display:grid;gap:14px}
.contact-side li{padding-left:18px;position:relative;font-size:15px;color:#4b4741}
.contact-side li::before{content:'';position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:var(--accent)}
.contact-side .info{margin-top:28px;padding:20px;background:var(--sand);border-radius:var(--radius);font-size:14px;color:#4b4741}

/* ============ 弹层 ============ */
.modal{position:fixed;inset:0;z-index:90;display:none;align-items:center;justify-content:center;padding:24px}
.modal.show{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(8,34,29,.55)}
.modal-card{position:relative;width:100%;max-width:520px;max-height:88vh;overflow-y:auto;background:#fff;border-radius:var(--radius);box-shadow:0 30px 70px -30px rgba(8,34,29,.55);padding:32px}
.modal-card h3{font-family:var(--font-serif);font-weight:800;font-size:22px;color:var(--brand)}
.modal-card .modal-sub{margin-top:10px;font-size:14px;color:var(--muted)}
.modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--muted);transition:border-color var(--t200),color var(--t200)}
.modal-close:hover{border-color:var(--brand);color:var(--brand)}
.modal-card form{margin-top:24px}
.modal-card .form-row{grid-template-columns:1fr}

/* ============ 页脚 ============ */
.footer{background:var(--sand);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 44px}
.footer h4{font-size:14px;color:var(--brand);font-weight:700;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:#4b4741;transition:color var(--t200)}
.footer-links a:hover{color:var(--brand)}
.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:900;font-size:17px;color:var(--brand)}
.footer-brand .logo-mark{width:32px;height:32px;font-size:16px}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:#4b4741;max-width:320px}
.footer-contact{font-size:14px;color:#4b4741;display:grid;gap:10px}
.footer-contact a{border-bottom:1px solid var(--line)}
.footer-contact a:hover{border-color:var(--brand);color:var(--brand)}
.privacy-note{margin-top:16px;font-size:13px;line-height:1.8;color:var(--muted);max-width:300px}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.to-top{position:fixed;right:28px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-hover);border:0;cursor:pointer;opacity:0;pointer-events:none;transition:opacity var(--t320),transform var(--t320);z-index:50}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 40px}
  .hero-inner{gap:40px}
}
@media (min-width:768px) and (max-width:1023px){
  :root{--sidebar-w:76px}
  .sidebar{padding:22px 12px;align-items:center}
  .logo{justify-content:center}
  .logo-text{display:none}
  .nav{width:100%;margin-top:26px}
  .nav-item{justify-content:center;padding:0}
  .nav-label{display:none}
  .side-foot{display:none}
  .container{padding:0 32px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .solutions-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .topics-grid{grid-template-columns:1fr}
  .faq-wrap,.contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  :root{--sidebar-w:0px}
  .topbar{display:flex}
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .28s cubic-bezier(.2,.7,.3,1);box-shadow:0 20px 60px -20px rgba(0,0,0,.5);padding:24px 20px}
  .sidebar.open{transform:none}
  .side-foot{display:block}
  .main{margin-left:0;padding-top:56px}
  .footer{margin-left:0}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section--tight{padding:52px 0}
  .hero{padding:44px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-actions .btn{width:100%}
  .hero-actions{gap:14px}
  .pain-item{grid-template-columns:64px 1fr;gap:14px;padding:22px 0}
  .solutions-grid{grid-template-columns:1fr}
  .sol-body,.sol-card{padding:22px}
  .stats{padding:60px 0}
  .stats-grid{grid-template-columns:1fr;gap:24px}
  .topics-grid{grid-template-columns:1fr}
  .topic-card{flex-direction:column;align-items:flex-start;gap:16px}
  .topic-card img{width:100%;aspect-ratio:16/9}
  .news-grid{grid-template-columns:1fr}
  .faq-wrap,.contact-grid{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:52px 0 32px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:14px}
  .modal-card{padding:24px}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  body{font-size:15px}
  .hero h1{font-size:30px}
  .pain-num{font-size:34px}
  .btn{height:46px;padding:0 18px;font-size:14px}
  .btn-block{height:50px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --brand:#0E3A32;
  --brand-dark:#08221D;
  --brand-mid:#14483D;
  --accent:#D9663B;
  --accent-dark:#C2562F;
  --muted:#8A857B;
  --bg:#F7F5F0;
  --sand:#EDEAE3;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --text:#23201C;
  --ok:#2E7D5B;
  --warn:#C9862B;
  --err:#B4432F;
  --r-card:8px;
  --r-btn:6px;
  --shadow-1:0 1px 2px rgba(14,58,50,.05), 0 12px 32px -18px rgba(14,58,50,.18);
  --shadow-2:0 1px 2px rgba(14,58,50,.06), 0 20px 40px -14px rgba(14,58,50,.24);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar:248px;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--brand);letter-spacing:-.015em;}
p{margin:0;}
ul,ol{margin:0;}
svg{display:block;}
.mono{font-family:var(--font-mono);letter-spacing:.02em;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 48px;}
::selection{background:rgba(217,102,59,.22);}

/* ---------- 基础按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:none;border-radius:var(--r-btn);
  font-family:var(--font-sans);font-size:15px;font-weight:500;cursor:pointer;
  transition:background-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
  text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-mid);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--line);}
.btn-ghost:hover{border-color:rgba(217,102,59,.55);color:var(--accent);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn:focus-visible,.nav-item:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);
  position:relative;padding-bottom:2px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .32s var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}
.text-link:hover{color:var(--accent);}

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

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:60;
  background:var(--brand);color:#fff;padding:28px 18px 22px;
  display:flex;flex-direction:column;gap:26px;overflow-y:auto;
}
.sidebar::-webkit-scrollbar{width:6px;}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:3px;}
.logo{display:flex;align-items:center;gap:10px;padding:0 6px;}
.logo-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:8px;background:var(--accent);
  display:grid;place-items:center;font-family:var(--font-serif);font-weight:900;font-size:19px;color:#fff;
}
.logo-text{font-family:var(--font-serif);font-weight:700;font-size:16px;line-height:1.3;color:#fff;letter-spacing:-.01em;}
.nav{display:flex;flex-direction:column;gap:2px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;height:46px;
  padding:0 14px 0 20px;border-radius:6px;color:rgba(255,255,255,.72);
  font-size:14px;transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;opacity:.9;}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff;}
.nav-item.active{background:rgba(255,255,255,.1);color:#fff;font-weight:500;}
.nav-item.active::before{
  content:"";position:absolute;left:6px;top:10px;bottom:10px;width:2px;
  background:var(--accent);border-radius:2px;
}
.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding:0 6px;}
.sidebar-note{font-size:13px;line-height:1.7;color:rgba(255,255,255,.55);}
.sidebar-meta{font-size:13px;color:rgba(255,255,255,.7);}
.sidebar-meta a:hover{color:var(--accent);}
.side-cta{
  display:none;width:44px;height:44px;border-radius:50%;background:var(--accent);
  align-items:center;justify-content:center;margin:0 auto;color:#fff;
}
.side-cta:hover{background:var(--accent-dark);}
.side-cta svg{width:20px;height:20px;}

/* ---------- 主体骨架 ---------- */
.main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column;}
.topbar{display:none;}
.drawer,.overlay{display:none;}
.overlay{
  position:fixed;inset:0;background:rgba(8,34,29,.5);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.overlay.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:80;background:var(--brand);
  padding:24px 18px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(-100%);transition:transform .28s var(--ease);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:36px;height:36px;border-radius:6px;background:rgba(255,255,255,.1);border:none;color:#fff;
  display:grid;place-items:center;cursor:pointer;
}
.drawer-close:hover{background:rgba(255,255,255,.18);}

/* ---------- 面包屑 ---------- */
.crumb-wrap{background:var(--sand);border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;align-items:center;gap:8px;padding:16px 0;
  font-size:13px;color:var(--muted);overflow:hidden;white-space:nowrap;
}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:#c4bfb3;}
.breadcrumb .current{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;}

/* ---------- 文章头 ---------- */
.article-head{padding:44px 0 40px;background:var(--sand);border-bottom:1px solid var(--line);}
.article-head .inner{max-width:860px;}
.badge-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px;}
.meta-item{font-size:13px;color:var(--muted);}
.article-head h1{
  font-size:clamp(30px,3.4vw,46px);line-height:1.22;font-weight:900;color:var(--brand);
  max-width:22ch;
}
.rule{height:1px;background:var(--line);margin-top:30px;}

/* ---------- 正文阅读区 ---------- */
.reading{padding:56px 0 0;}
.article-body{
  max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);
}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  font-size:clamp(24px,2.2vw,28px);line-height:1.35;font-weight:800;color:var(--brand);
  margin-top:48px;padding-left:14px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--brand);margin-top:34px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--brand-mid);margin-top:26px;}
.article-body p + p{margin-top:1.2em;}
.article-body > p:first-of-type{font-weight:500;color:#191713;}
.article-body ul,.article-body ol{padding-left:1.5em;}
.article-body li + li{margin-top:.45em;}
.article-body li::marker{color:var(--accent);}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--sand);
  border-left:3px solid var(--accent);border-radius:0 8px 8px 0;color:#3b352d;
}
.article-body blockquote p{margin:0;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(217,102,59,.55);transition:color .2s var(--ease);}
.article-body a:hover{color:var(--accent);}
.article-body img{border-radius:8px;margin:1.6em auto;}
.article-body figcaption,.article-body .caption{
  font-size:13px;color:var(--muted);text-align:center;margin-top:10px;
}
.article-body code{
  font-family:var(--font-mono);font-size:.88em;background:var(--sand);
  padding:2px 6px;border-radius:4px;color:#5a4032;
}
.article-body pre{
  background:var(--brand-dark);color:#e9e4da;padding:18px 20px;border-radius:8px;
  overflow-x:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  display:block;overflow-x:auto;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--sand);font-weight:700;color:var(--brand);white-space:nowrap;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;margin:0 auto;padding:48px 32px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);text-align:center;
}
.empty-state h2{font-size:24px;margin-bottom:12px;border:none;padding:0;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- 文末 CTA ---------- */
.cta-strip{
  max-width:900px;margin:64px auto 0;padding:30px 34px;background:var(--sand);
  border:1px solid var(--line);border-radius:var(--r-card);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-strip h3{font-size:20px;font-weight:800;margin-bottom:6px;}
.cta-strip p{font-size:14px;color:var(--muted);}

/* ---------- 相关阅读 ---------- */
.related{max-width:900px;margin:64px auto 0;}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px;}
.related-head h2{font-size:22px;font-weight:800;}
.related-head span{font-size:13px;color:var(--muted);}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.rcard{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(217,102,59,.35);}
.rcard h3{font-size:17px;line-height:1.5;font-weight:700;margin:12px 0 8px;transition:color .2s var(--ease);}
.rcard:hover h3{color:var(--accent);}
.rcard p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- 返回 ---------- */
.back-row{
  max-width:900px;margin:48px auto 88px;display:flex;align-items:center;
  justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:26px;
}
.back-row .text-link{font-size:14px;}
.to-top{
  position:fixed;right:28px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;border:none;display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background-color .2s var(--ease);
  z-index:50;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);}
.to-top svg{width:20px;height:20px;}

/* ---------- 页脚 ---------- */
.footer{background:var(--brand-dark);color:rgba(255,255,255,.72);margin-top:auto;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-serif);font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand .logo-mark{background:var(--accent);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:32ch;}
.footer h4{font-family:var(--font-sans);font-size:14px;color:#fff;font-weight:500;margin-bottom:16px;letter-spacing:0;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--accent);}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;}
.footer-contact a{color:#fff;}
.footer-contact a:hover{color:var(--accent);}
.footer-contact span{color:rgba(255,255,255,.6);}
.privacy-note{font-size:13px;line-height:1.8;color:rgba(255,255,255,.5);margin-top:14px;max-width:38ch;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 进入视口淡入 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar:236px;}
  .container{padding:0 32px;}
}
@media (max-width:1023px){
  :root{--sidebar:72px;}
  .container{padding:0 32px;}
  .sidebar{padding:24px 11px;align-items:center;gap:20px;}
  .logo{padding:0;}
  .logo-text{display:none;}
  .nav-item{justify-content:center;padding:0;gap:0;}
  .nav-label{display:none;}
  .nav-item.active::before{left:-5px;}
  .sidebar-foot{padding:0;}
  .sidebar-note,.sidebar-meta{display:none;}
  .side-cta{display:flex;}
  .article-head h1{max-width:none;}
}
@media (max-width:767px){
  :root{--sidebar:0px;}
  .sidebar{display:none;}
  .main{margin-left:0;}
  .container{padding:0 20px;}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:65;height:56px;padding:0 20px;
    background:var(--brand);color:#fff;
  }
  .topbar .logo-text{display:block;font-size:15px;}
  .topbar .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px;}
  .hamburger{
    width:38px;height:38px;border-radius:6px;background:rgba(255,255,255,.1);
    border:none;color:#fff;display:grid;place-items:center;cursor:pointer;
  }
  .hamburger:hover{background:rgba(255,255,255,.2);}
  .hamburger svg{width:20px;height:20px;}
  .drawer,.overlay{display:flex;}
  .overlay{display:block;}
  .article-head{padding:32px 0 28px;}
  .badge-row{gap:10px;margin-bottom:14px;}
  .reading{padding:36px 0 0;}
  .article-body{font-size:16px;}
  .article-body h2{margin-top:36px;}
  .cta-strip{margin-top:44px;padding:24px 20px;flex-direction:column;align-items:stretch;}
  .cta-strip .btn{width:100%;}
  .related{margin-top:44px;}
  .related-grid{grid-template-columns:1fr;}
  .back-row{margin:36px auto 56px;}
  .to-top{right:18px;bottom:18px;}
  .footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-about,.privacy-note{max-width:none;}
  .footer-bottom{margin-top:36px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-head h1{font-size:27px;}
  .breadcrumb{font-size:12px;}
  .breadcrumb .current{max-width:20ch;}
  .rcard{padding:18px;}
  .footer-bottom{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E3A32;
  --c-primary-deep:#08221D;
  --c-accent:#D9663B;
  --c-muted:#8A857B;
  --c-bg:#F7F5F0;
  --c-sand:#EDEAE3;
  --c-card:#FFFFFF;
  --c-line:#E3DFD6;
  --c-text:#23201C;
  --c-ok:#2E7D5B;
  --c-warn:#C9862B;
  --c-err:#B4432F;
  --radius-card:8px;
  --radius-btn:6px;
  --shadow-1:0 1px 2px rgba(14,58,50,.05),0 12px 32px -18px rgba(14,58,50,.18);
  --shadow-2:0 1px 2px rgba(14,58,50,.06),0 18px 40px -12px rgba(14,58,50,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:248px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,monospace;
}
*,*::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:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--c-primary);margin:0;letter-spacing:-.01em;font-weight:800}
h1{font-size:clamp(34px,4.2vw,56px);line-height:1.15;font-weight:900;letter-spacing:-.02em}
h2{font-size:clamp(26px,2.8vw,36px);line-height:1.25}
h3{font-size:21px;line-height:1.4;font-weight:700}
p{margin:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(217,102,59,.45);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-primary);color:#DCE7E3;
  display:flex;flex-direction:column;
  padding:26px 0 22px;
  z-index:70;
  overflow-y:auto;
}
.main{margin-left:var(--sidebar-w);min-height:100vh}
.container{max-width:1240px;margin:0 auto;padding:0 48px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-sand{background:var(--c-sand)}
.section-line{border-top:1px solid var(--c-line)}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{display:flex;align-items:center;gap:12px;padding:0 20px 26px;color:#fff}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:8px;
  background:var(--c-accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-weight:900;font-size:19px;
}
.brand-text{font-family:var(--font-serif);font-weight:700;font-size:16px;line-height:1.3;letter-spacing:-.01em}
.nav{display:flex;flex-direction:column;gap:2px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:46px;padding:0 20px;
  font-size:14px;color:rgba(220,231,227,.78);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{width:19px;height:19px;flex:0 0 19px;opacity:.9}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-item.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;
  background:var(--c-accent);border-radius:2px;
}
.sidebar-foot{margin-top:auto;padding:26px 20px 0;border-top:1px solid rgba(255,255,255,.12);margin-left:20px;margin-right:20px;padding-left:0;padding-right:0}
.sidebar-contact{display:flex;flex-direction:column;gap:4px;font-size:13px;color:rgba(220,231,227,.7);margin-top:16px}
.sidebar-contact a{color:#fff}
.sidebar-contact a:hover{color:var(--c-accent)}

/* ---------- 移动端顶部栏与抽屉 ---------- */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:75;
  height:56px;align-items:center;justify-content:space-between;
  padding:0 20px;background:var(--c-primary);color:#fff;
}
.mobile-topbar .brand{padding:0;gap:10px}
.mobile-topbar .brand-text{font-size:15px}
.hamburger{
  width:40px;height:40px;display:flex;flex-direction:column;justify-content:center;gap:5px;
  background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:6px;padding:0 10px;
}
.hamburger span{display:block;height:2px;background:#fff;border-radius:2px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,34,29,.45);z-index:78;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;
}
.drawer-mask.show{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:26px 0 22px;font-size:13px;color:var(--c-muted);
}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-line)}
.crumb .current{color:var(--c-primary);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw}

/* ---------- Hero 窄幅 ---------- */
.hero{
  position:relative;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(247,245,240,.97) 0%,rgba(247,245,240,.88) 46%,rgba(247,245,240,.38) 100%);
}
.hero-inner{position:relative;padding:84px 0 76px;max-width:720px}
.hero .kicker{
  display:inline-block;font-size:13px;letter-spacing:.04em;color:var(--c-accent);
  background:rgba(217,102,59,.1);border-radius:999px;padding:4px 12px;margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero .lead{font-size:18px;color:#3E3A33;max-width:560px}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:32px}
.hero-meta{
  display:flex;gap:14px;flex-wrap:wrap;align-items:center;
  margin-top:22px;font-size:13px;color:var(--c-muted);
}
.hero-meta span.dot{color:var(--c-line)}

/* ---------- 更新条 ---------- */
.update-bar{
  background:var(--c-primary-deep);color:#D9E4E0;
  padding:16px 0;font-size:14px;
}
.update-bar .inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.update-bar .pill{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border-radius:999px;padding:4px 12px;font-size:13px;color:#fff;
}
.update-bar .pulse{width:7px;height:7px;border-radius:50%;background:var(--c-accent)}

/* ---------- 通用按钮与文字链 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:500;
  transition:background .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:#0B2F29;transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#C4572F;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
@media (max-width:560px){.btn-block-sm{width:100%}}
.link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--c-primary);font-weight:500;padding-bottom:2px;
}
.link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--c-accent);
  transition:width .28s var(--ease);
}
.link:hover{color:var(--c-accent)}
.link:hover::after{width:100%}
.link .arrow{transition:transform .2s var(--ease)}
.link:hover .arrow{transform:translateX(4px)}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head .eyebrow{
  font-size:13px;letter-spacing:.06em;color:var(--c-muted);text-transform:uppercase;
  display:block;margin-bottom:12px;
}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:#4A453D;font-size:16px}
.bar-title{position:relative;padding-left:16px}
.bar-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:var(--c-accent);border-radius:2px;
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.split + .split{margin-top:88px}
.split__media{order:1}
.split__body{order:2}
.split--reverse .split__media{order:2}
.split__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--c-line);background:var(--c-sand);
}
.split__body .index{
  font-family:var(--font-mono);font-size:13px;color:var(--c-accent);letter-spacing:.08em;display:block;margin-bottom:12px;
}
.split__body h2{margin-bottom:16px}
.split__body p{color:#4A453D;font-size:16px}
.points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.points li{
  position:relative;padding-left:20px;font-size:15px;color:#3E3A33;
}
.points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:var(--c-accent);
}
.split .link{margin-top:24px}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;
}
.metrics .cell{background:var(--c-card);padding:28px 24px}
.metrics .num{
  font-family:var(--font-mono);font-size:32px;font-weight:600;color:var(--c-primary);line-height:1.2;
}
.metrics .label{font-size:15px;font-weight:500;color:var(--c-primary);margin-top:8px}
.metrics .note{font-size:13px;color:var(--c-muted);margin-top:4px}

/* ---------- 编号卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(217,102,59,.3)}
.card .card-num{
  font-family:var(--font-mono);font-size:40px;font-weight:600;color:rgba(217,102,59,.2);line-height:1;
  display:block;margin-bottom:16px;
}
.card h3{margin-bottom:12px}
.card p{font-size:15px;color:#4A453D}
.card .card-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.card .card-list li{position:relative;padding-left:18px;font-size:14px;color:var(--c-muted)}
.card .card-list li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:1px;background:var(--c-line)}

/* ---------- FAQ ---------- */
.faq{max-width:880px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;padding:16px 0;text-align:left;
  font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--c-primary);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-accent)}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .26s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-accent);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;transition:transform .26s var(--ease),opacity .26s var(--ease)}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s var(--ease),padding .26s var(--ease);
}
.faq-item.open .faq-a{max-height:320px;padding-bottom:22px}
.faq-a p{font-size:15px;color:#4A453D;max-width:760px}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--c-sand);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{font-size:15px;color:#4A453D;max-width:520px}
.cta-band .actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ---------- 表单 ---------- */
.form-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px;align-items:start;
}
.form-side h2{margin-bottom:16px}
.form-side p{font-size:16px;color:#4A453D;margin-bottom:24px}
.form-side .facts{display:flex;flex-direction:column;gap:14px;border-top:1px solid var(--c-line);padding-top:24px}
.form-side .facts li{font-size:14px;color:var(--c-muted);display:flex;gap:10px;align-items:flex-start}
.form-side .facts b{color:var(--c-primary);font-weight:500}
.form{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:36px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--c-primary);margin-bottom:8px}
.field .req{color:var(--c-accent)}
.input,.select,.textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:#fff;padding:13px 14px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input,.select{height:48px}
.textarea{min-height:120px;resize:vertical;line-height:1.7}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,58,50,.1);
}
.field.error .input,.field.error .select,.field.error .textarea{border-color:var(--c-err)}
.field .hint{font-size:13px;color:var(--c-muted);margin-top:6px}
.field .err-msg{display:none;font-size:13px;color:var(--c-err);margin-top:6px}
.field.error .err-msg{display:block}
.checkline{display:flex;gap:10px;align-items:flex-start;margin:6px 0 24px}
.checkline input{margin-top:5px;width:16px;height:16px;accent-color:var(--c-primary)}
.checkline span{font-size:13px;color:var(--c-muted);line-height:1.7}
.checkline a{color:var(--c-primary);text-decoration:underline;text-decoration-color:var(--c-line)}
.form-success{
  display:none;margin-top:18px;font-size:14px;color:var(--c-ok);
  background:rgba(46,125,91,.08);border:1px solid rgba(46,125,91,.25);border-radius:6px;padding:12px 14px;
}
.form-success.show{display:block}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-primary-deep);color:#C9D6D2;padding:72px 0 0;margin-top:96px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-family:var(--font-serif);font-weight:700;font-size:16px;margin-bottom:18px}
.footer-about{font-size:14px;color:rgba(201,214,210,.78);max-width:340px;line-height:1.8}
.footer h4{font-size:14px;color:#fff;margin-bottom:18px;font-family:var(--font-sans);font-weight:500}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(201,214,210,.82);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px}
.footer-contact a{color:#fff}
.footer-contact a:hover{color:var(--c-accent)}
.privacy-note{font-size:13px;color:rgba(201,214,210,.65);line-height:1.8;margin-top:16px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:13px;color:rgba(201,214,210,.6);
}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:240px}
  .container{padding:0 32px}
  .section{padding:84px 0}
}
@media (max-width:1023px){
  :root{--sidebar-w:72px}
  .sidebar{padding:20px 0}
  .sidebar .brand{justify-content:center;padding:0 0 22px}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-label{display:none}
  .nav-item svg{opacity:1}
  .nav-item:hover .nav-label{
    display:block;position:absolute;left:76px;top:50%;transform:translateY(-50%);
    background:var(--c-primary-deep);color:#fff;padding:6px 12px;border-radius:6px;
    font-size:13px;white-space:nowrap;z-index:10;box-shadow:var(--shadow-2);
  }
  .sidebar-foot{margin:auto 0 0;padding:20px 0 0}
  .sidebar-foot .btn{height:44px;padding:0;font-size:0}
  .sidebar-foot .btn::before{content:"需求";font-size:13px}
  .sidebar-contact{display:none}
  .split{gap:36px}
  .form-wrap{grid-template-columns:1fr;gap:36px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:1fr}
}
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:28px}
  .split--reverse .split__media{order:1}
  .split__body{order:2}
  .split + .split{margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sidebar-w:264px}
  .mobile-topbar{display:flex}
  .sidebar{
    width:264px;transform:translateX(-100%);z-index:80;
    transition:transform .28s var(--ease);padding:24px 0 22px;
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar .brand{justify-content:flex-start;padding:0 20px 24px}
  .brand-text{display:block}
  .nav-item{justify-content:flex-start;padding:0 20px}
  .nav-label{display:inline}
  .sidebar-foot .btn{font-size:15px;height:48px}
  .sidebar-foot .btn::before{content:none}
  .sidebar-contact{display:flex}
  .main{margin-left:0}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .hero-inner{padding:56px 0 52px}
  .hero .lead{font-size:16px}
  .update-bar{font-size:13px}
  .cta-band{padding:30px 24px}
  .form{padding:24px}
  .footer{padding-top:52px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:560px){
  body{font-size:16px}
  .metrics{grid-template-columns:1fr}
  .hero-actions{gap:14px}
  .hero-actions .btn{width:100%}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{width:100%}
  .crumb .current{max-width:70vw}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand:#0E3A32;
  --brand-deep:#08221D;
  --brand-hover:#0B2E27;
  --accent:#D9663B;
  --accent-hover:#C4572F;
  --muted:#8A857B;
  --bg:#F7F5F0;
  --bg-soft:#EDEAE3;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --text:#23201C;
  --text-2:#4B463F;
  --ok:#2E7D5B;
  --warn:#C9862B;
  --err:#B4432F;
  --r-card:8px;
  --r-btn:6px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(14,58,50,.05),0 12px 32px -18px rgba(14,58,50,.18);
  --shadow-hover:0 1px 2px rgba(14,58,50,.06),0 18px 40px -12px rgba(14,58,50,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t1:120ms;
  --t2:200ms;
  --t3:320ms;
  --sidebar-w:248px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Roboto Mono",Consolas,monospace;
}
*,*::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(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:-.015em;color:var(--brand);margin:0}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 6px 0;z-index:200}
.skip-link:focus{left:0}
.mono{font-family:var(--font-mono)}

/* ---------- 侧边 App Shell ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--brand);color:rgba(233,239,236,.8);
  display:flex;flex-direction:column;
  padding:28px 0 24px;z-index:60;
}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 20px 22px;border-bottom:1px solid rgba(255,255,255,.1)}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:8px;background:var(--accent);
  color:#fff;display:grid;place-items:center;font-family:var(--font-serif);
  font-weight:700;font-size:18px;line-height:1;
}
.brand-text{font-size:15px;font-weight:700;color:#fff;line-height:1.35;letter-spacing:-.01em}
.nav{display:flex;flex-direction:column;gap:2px;padding:18px 12px;flex:1;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:46px;padding:0 20px;border-radius:6px;
  font-size:14px;color:rgba(233,239,236,.78);
  transition:background var(--t2) var(--ease),color var(--t2) var(--ease);
}
.nav-item svg{width:18px;height:18px;flex:none;opacity:.85}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-item.active{background:rgba(255,255,255,.1);color:#fff}
.nav-item.active::before{
  content:'';position:absolute;left:-12px;top:12px;bottom:12px;width:2px;
  background:var(--accent);border-radius:2px;
}
.nav-label{white-space:nowrap}
.sidebar-foot{padding:18px 20px 0;border-top:1px solid rgba(255,255,255,.1)}
.foot-mail{display:block;font-size:13px;color:rgba(233,239,236,.65);margin-bottom:12px;word-break:break-all}

/* ---------- 顶部栏（移动） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:56px;
  background:var(--brand);color:#fff;
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:#fff}
.topbar-brand .logo-mark{width:30px;height:30px;font-size:16px;border-radius:7px}
.burger{
  width:42px;height:42px;display:grid;place-items:center;background:transparent;
  border:1px solid rgba(255,255,255,.25);border-radius:6px;color:#fff;cursor:pointer;
  transition:background var(--t2) var(--ease);
}
.burger:hover{background:rgba(255,255,255,.12)}
.burger svg{width:20px;height:20px}
.scrim{
  position:fixed;inset:0;background:rgba(8,34,29,.45);opacity:0;pointer-events:none;
  transition:opacity 240ms var(--ease);z-index:55;
}
.scrim.show{opacity:1;pointer-events:auto}

/* ---------- 主区 ---------- */
.shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 48px}

.crumb{padding:28px 0 0;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center}
.crumb a{color:var(--muted);transition:color var(--t2) var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{margin:0 8px;opacity:.6}
.crumb .cur{color:var(--text)}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:22px;border-radius:10px;overflow:hidden;
  padding:60px 48px 56px;color:#fff;
  background-image:linear-gradient(100deg,rgba(8,34,29,.9) 0%,rgba(8,34,29,.72) 48%,rgba(8,34,29,.42) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:13px;letter-spacing:.02em;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);color:#fff;
}
.hero h1{
  color:#fff;font-size:clamp(32px,3.6vw,48px);line-height:1.18;font-weight:900;
  max-width:760px;letter-spacing:-.02em;
}
.hero-lead{margin:18px 0 0;font-size:17px;line-height:1.8;color:rgba(255,255,255,.85);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px}
.hero .text-link{color:#fff}
.hero .text-link:hover{color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;font-family:var(--font-sans);cursor:pointer;
  transition:background var(--t2) var(--ease),border-color var(--t2) var(--ease),
             color var(--t2) var(--ease),transform var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(14,58,50,.05)}
.btn-light{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-light:hover{border-color:var(--brand);transform:translateY(-1px)}
.btn-block{width:100%;height:52px}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn:active{transform:translateY(0)}

.text-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.text-link::after{
  content:'';position:absolute;left:0;right:100%;bottom:-2px;height:1px;
  background:currentColor;transition:right var(--t2) var(--ease);
}
.text-link:hover::after{right:0}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section.soft{background:var(--bg-soft)}
.section.tight{padding:72px 0}
.sec-title{
  position:relative;padding-left:16px;font-size:clamp(25px,2.6vw,34px);
  line-height:1.28;font-weight:800;
}
.sec-title::before{
  content:'';position:absolute;left:0;top:.2em;bottom:.2em;width:2px;
  background:var(--accent);border-radius:2px;
}
.sec-lead{margin:14px 0 0;font-size:16px;color:var(--text-2);max-width:660px}

/* ---------- 时间轴 ---------- */
.timeline{margin-top:46px;display:flex;flex-direction:column}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:0 28px;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-axis{position:relative}
.tl-axis::before{
  content:'';position:absolute;left:50%;top:8px;bottom:-40px;width:1px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item:last-child .tl-axis::before{display:none}
.tl-dot{
  position:absolute;left:50%;top:6px;width:14px;height:14px;margin-left:-7px;
  border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(217,102,59,.16);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow);
  transition:transform var(--t2) var(--ease),border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(217,102,59,.32);box-shadow:var(--shadow-hover)}
.tl-num{font-family:var(--font-mono);font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--accent)}
.tl-card h3{font-size:20px;line-height:1.4;margin:8px 0 10px}
.tl-card p{font-size:15.5px;line-height:1.85;color:var(--text-2);margin:0 0 16px}
.tl-points{list-style:none;display:flex;flex-direction:column;gap:8px}
.tl-points li{position:relative;padding-left:16px;font-size:14.5px;color:var(--text-2)}
.tl-points li::before{
  content:'';position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:1px;
  background:var(--brand);opacity:.5;
}

/* ---------- 对照表 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;margin-top:40px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);
}
.compare-head{padding:16px 24px;font-size:14px;font-weight:700;letter-spacing:.02em;background:var(--brand);color:#fff}
.compare-head.alt{background:var(--bg-soft);color:var(--brand)}
.compare-cell{padding:18px 24px;border-top:1px solid var(--line);font-size:15px;line-height:1.8;color:var(--text-2)}
.compare-cell:nth-child(odd){border-right:1px solid var(--line)}
.compare-cell:first-of-type{border-top:1px solid var(--line)}

/* ---------- 自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-top:44px}
.check-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-soft);box-shadow:var(--shadow);
}
.check-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{list-style:none;display:flex;flex-direction:column;gap:0}
.check-list li{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.check-list li:first-child{padding-top:0}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-idx{font-family:var(--font-mono);font-size:22px;font-weight:700;color:rgba(217,102,59,.55);line-height:1.2}
.check-list h3{font-size:17px;margin-bottom:6px}
.check-list p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8}

/* ---------- FAQ ---------- */
.faq{margin-top:40px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-family:var(--font-sans);font-size:16.5px;font-weight:600;color:var(--text);
  transition:color var(--t2) var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-ico{flex:none;width:20px;height:20px;color:var(--accent);transition:transform 260ms var(--ease)}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a p{margin:0;padding:0 40px 20px 0;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 40px;
}
.cta-strip h2{font-size:clamp(21px,2vw,26px);line-height:1.4}
.cta-sub{margin:10px 0 0;font-size:15px;color:var(--text-2)}

/* ---------- 表单 ---------- */
.contact-block{margin-top:44px;display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.contact-side h3{font-size:20px;margin-bottom:12px}
.contact-side p{font-size:15px;color:var(--text-2)}
.contact-side ul{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:18px}
.contact-side li{position:relative;padding-left:16px;font-size:14.5px;color:var(--text-2)}
.contact-side li::before{content:'';position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:1px;background:var(--brand);opacity:.5}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow);
}
.form-title{font-size:20px;margin-bottom:8px}
.form-sub{font-size:14px;color:var(--muted);margin:0 0 22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#FCFBF8;font-size:15px;line-height:1.6;color:var(--text);
  transition:border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease),background var(--t2) var(--ease);
}
.field textarea{min-height:116px;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%238A857B' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(14,58,50,.1);
}
.field.error input,.field.error textarea,.field.error select{border-color:var(--err)}
.err-msg{display:none;margin-top:6px;font-size:14px;color:var(--err)}
.field.error .err-msg{display:block}
.privacy-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.75;margin:4px 0 22px}
.privacy-row input[type="checkbox"]{width:16px;height:16px;flex:none;margin-top:4px;accent-color:var(--brand)}
.privacy-row a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.form-msg{margin:14px 0 0;font-size:14px;min-height:0}
.form-msg.err{color:var(--err)}
.form-msg.ok{color:var(--ok)}

/* ---------- 页脚 ---------- */
.footer{background:var(--brand-deep);color:rgba(233,239,236,.76);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:15px;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.85;margin:0;max-width:330px}
.footer h4{font-size:14px;color:#fff;margin:0 0 16px;font-weight:700;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{transition:color var(--t2) var(--ease)}
.footer-links a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px}
.footer-contact a:hover{color:#fff}
.privacy-note{font-size:13px;color:var(--muted);line-height:1.8;margin:16px 0 0}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;
  font-size:13px;color:var(--muted);
}
.footer-bottom .mono{letter-spacing:.02em}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(8px);transition:opacity var(--t3) var(--ease),transform var(--t3) var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 40px}
}
@media (max-width:1023px){
  :root{--sidebar-w:72px}
  .sidebar{padding:20px 0}
  .sidebar-brand{justify-content:center;padding:0 0 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .brand-text{display:none}
  .nav{padding:14px 10px}
  .nav-item{justify-content:center;padding:0;height:46px}
  .nav-item.active::before{left:-10px}
  .nav-label{
    position:absolute;left:60px;top:50%;transform:translateY(-50%);
    background:var(--brand-deep);color:#fff;padding:6px 12px;border-radius:6px;
    font-size:13px;opacity:0;pointer-events:none;white-space:nowrap;
    transition:opacity var(--t2) var(--ease);z-index:80;
  }
  .nav-item:hover .nav-label{opacity:1}
  .sidebar-foot{display:flex;flex-direction:column;align-items:center;padding:16px 0 0}
  .foot-mail{display:none}
  .sidebar-foot .btn{width:44px;height:44px;padding:0;border-radius:8px}
  .sidebar-foot .btn span{display:none}
  .container{padding:0 32px}
  .check-grid{gap:36px}
  .contact-block{gap:36px}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .check-grid{grid-template-columns:1fr;gap:32px}
  .contact-block{grid-template-columns:1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sidebar-w:0px}
  .topbar{display:flex}
  .sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform 280ms var(--ease);padding:24px 0;
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-brand{justify-content:flex-start;padding:0 20px 20px}
  .sidebar .brand-text{display:block}
  .nav{padding:16px 12px}
  .nav-item{justify-content:flex-start;padding:0 20px}
  .nav-label{
    position:static;transform:none;opacity:1;pointer-events:auto;
    background:none;padding:0;font-size:14px;color:inherit;
  }
  .nav-item.active::before{left:-12px}
  .sidebar-foot{display:block;padding:18px 20px 0}
  .sidebar-foot .foot-mail{display:block}
  .sidebar-foot .btn{width:100%;height:44px;padding:0 16px;border-radius:6px}
  .sidebar-foot .btn span{display:inline}
  .shell{margin-left:0}
  .container{padding:0 20px}
  .hero{margin-top:16px;padding:40px 24px 40px;border-radius:8px}
  .hero-lead{font-size:15.5px}
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .timeline{margin-top:32px}
  .tl-item{grid-template-columns:32px 1fr;gap:0 16px;padding-bottom:28px}
  .tl-axis::before{bottom:-28px}
  .tl-card{padding:20px}
  .compare{grid-template-columns:1fr;margin-top:28px}
  .compare-head{display:none}
  .compare-cell{border-right:0!important;padding:16px 20px}
  .compare-cell::before{
    content:attr(data-k);display:block;font-size:12px;letter-spacing:.06em;
    color:var(--muted);margin-bottom:6px;
  }
  .check-list li{grid-template-columns:44px 1fr;gap:14px}
  .cta-strip{padding:26px 22px;gap:20px}
  .form-card{padding:24px 20px}
  .footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .hero h1{font-size:29px}
  .hero-actions .btn{width:100%}
  .hero-actions .text-link{width:100%;justify-content:center}
  .sec-title{font-size:23px}
  .tl-card h3{font-size:18px}
  .faq-q{font-size:15.5px}
  .btn{padding:0 18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .js .reveal{opacity:1;transform:none}
}