/* roulang page: index */
:root{
  --brand-900:#0B3B37; --brand-700:#0E5A52; --brand-600:#12766C; --brand-500:#12857A;
  --brand-300:#7FC3BA; --brand-100:#DCE9E5;
  --sand-50:#F7F2E8; --sand-100:#F1EADC; --card:#FFFFFF;
  --accent:#D9663F;
  --ink:#1C2422; --ink-2:#55605D; --ink-3:#8A928F; --line:#E3E0D6;
  --r-card:16px; --r-btn:10px; --r-img:14px; --r-badge:6px;
  --sh-1:0 1px 2px rgba(12,59,55,.06);
  --sh-2:0 12px 28px -12px rgba(12,59,55,.18);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--sand-50);color:var(--ink);
  font-size:16px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .12s ease,background-color .12s ease,border-color .12s ease}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(18,133,122,.18);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-tight{padding:48px 0}
@media(min-width:768px){.section-tight{padding:64px 0}}

.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px}
.sec-title{font-size:clamp(24px,3.4vw,32px);padding-left:14px;border-left:4px solid var(--brand-500);display:inline-block}
.sec-desc{color:var(--ink-2);font-size:15px;max-width:620px;margin-top:10px}
.sec-link{color:var(--brand-700);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.sec-link:hover{text-decoration:underline;text-underline-offset:2px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,242,232,.92);border-bottom:1px solid var(--line)}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-link{padding:8px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink);position:relative}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--brand-700);border-radius:2px}
.brand{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand-mark{width:28px;height:28px;flex:0 0 28px;display:block}
.brand-name{font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900)}
.nav-cta{height:40px;padding:0 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:38px;border:1px solid var(--line);border-radius:8px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line)}
.mobile-drawer.open{display:block}
.drawer-link{display:block;height:48px;line-height:48px;padding:0 20px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink)}
.drawer-link.is-active{color:var(--brand-700);font-weight:600}
.drawer-cta{display:flex;width:calc(100% - 40px);margin:16px 20px 20px}
@media(max-width:1023px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{justify-content:space-between}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:all .12s ease;line-height:1}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-100)}
.btn-outline:active{background:var(--brand-300)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--sand-100);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.text-link{color:var(--brand-700);font-weight:600}
.text-link:hover{text-decoration:underline;text-underline-offset:2px}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;line-height:1}
.badge-accent{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.badge-solid{background:var(--brand-700);color:#fff}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--sand-100);border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='80' viewBox='0 0 240 80'%3E%3Cpath d='M0 40c30-26 60-26 90 0s60 26 90 0 60-26 90 0' fill='none' stroke='%230E5A52' stroke-opacity='.12' stroke-width='1'/%3E%3C/svg%3E");
  background-size:420px auto}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:56px}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:84px;padding-bottom:84px}
}
.hero-eyebrow{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px solid var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600}
.hero-title{font-size:clamp(30px,5vw,52px);font-weight:700;margin:18px 0 14px;color:var(--brand-900);max-width:15em}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.hero-points li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.hero-figure{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--brand-100)}
.hero-figure img{width:100%;aspect-ratio:5/4;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:rgba(11,59,55,.6)}
.hero-seal{position:absolute;right:18px;bottom:18px;z-index:2;width:76px;height:76px;border-radius:12px;
  border:1px solid rgba(255,255,255,.65);background:rgba(11,59,55,.55);color:#fff;display:flex;
  align-items:center;justify-content:center;font-size:14px;font-weight:600;letter-spacing:.08em;line-height:1.3;text-align:center}
@media(max-width:640px){.hero-seal{width:64px;height:64px;font-size:13px}}

/* ---------- 数字条 ---------- */
.stats{background:var(--sand-100);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr)}
.stats-item{padding:24px 18px;text-align:center;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-item:nth-child(2n){border-right:none}
@media(min-width:768px){
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .stats-item{border-bottom:none;padding:30px 18px}
  .stats-item:nth-child(2n){border-right:1px solid var(--line)}
  .stats-item:last-child{border-right:none}
}
.stats-num{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.stats-label{font-size:14px;color:var(--ink-2);margin-top:6px}

/* ---------- 权益对比表 ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--sh-1)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.benefit-table{min-width:880px;font-size:15px}
.benefit-table th,.benefit-table td{padding:14px 16px;text-align:center;border-bottom:1px solid var(--line);vertical-align:middle}
.benefit-table thead th{background:var(--brand-100);color:var(--ink);font-weight:600;font-size:15px}
.benefit-table tbody tr:nth-child(odd){background:var(--sand-50)}
.benefit-table tbody tr:last-child td{border-bottom:none}
.benefit-table th:first-child,.benefit-table td:first-child{
  text-align:left;position:sticky;left:0;z-index:2;background:var(--sand-100);font-weight:600;
  box-shadow:8px 0 12px -10px rgba(12,59,55,.25);min-width:170px}
.benefit-table th:nth-child(4),.benefit-table td:nth-child(4){background:#fff;border-left:2px solid var(--brand-700);border-right:2px solid var(--brand-700)}
.benefit-table thead th:nth-child(4){border-top:2px solid var(--brand-700)}
.benefit-table tbody tr:last-child td:nth-child(4){border-bottom:2px solid var(--brand-700)}
.benefit-table thead th:nth-child(4){border-radius:0;padding-top:10px;padding-bottom:10px}
.rec-tag{display:inline-block;margin-left:6px;padding:1px 8px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;vertical-align:middle}
.yes{color:var(--brand-700);font-weight:700;font-size:17px;line-height:1}
.no{color:var(--ink-3);font-size:16px;line-height:1}
.cell-text{font-size:14px;color:var(--ink-2)}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-3)}

/* ---------- 等级亮点 ---------- */
.tier-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.tier-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:768px){.tier-card:nth-child(2){position:relative;top:-24px}}
.tier-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;
  box-shadow:var(--sh-1);transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}
.tier-card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);transform:translateY(-2px)}
.tier-name{font-size:19px;font-weight:700;color:var(--brand-900)}
.tier-desc{font-size:14px;color:var(--ink-2);margin-top:8px;min-height:44px}
.tier-list{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.tier-list li{position:relative;padding-left:24px;font-size:15px;color:var(--ink);margin-bottom:10px}
.tier-list li:last-child{margin-bottom:0}
.tier-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand-500);font-weight:700}
.tier-foot{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3)}

/* ---------- 专属内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.preview-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.preview-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:639px){.preview-card:nth-child(n+3){display:none}}
@media(min-width:640px) and (max-width:1023px){.preview-card:nth-child(n+5){display:none}}
.preview-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease;display:block}
.preview-card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);transform:translateY(-2px)}
.preview-card:hover .preview-title{color:var(--brand-700)}
.preview-thumb{position:relative;background:var(--brand-100)}
.preview-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.preview-body{padding:18px 18px 20px}
.preview-title{font-size:17px;font-weight:600;line-height:1.5;transition:color .12s ease}
.preview-desc{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75}
.preview-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.lock{color:var(--accent);font-weight:600}

/* ---------- 最新信息列表 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}
.news-card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);transform:translateY(-2px)}
.news-card:hover .news-title{color:var(--brand-700)}
.news-thumb{background:var(--brand-100)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:18px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.news-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .12s ease}
.news-desc{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--brand-700);font-weight:600}
.news-empty{border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:#fff}
.news-empty-mark{width:44px;height:44px;margin:0 auto 14px;border-radius:12px;background:var(--brand-100);display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:20px}
.news-empty p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-list{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);transition:background-color .12s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--sand-50)}
.faq-no{flex:0 0 auto;color:var(--brand-500);font-variant-numeric:tabular-nums;font-weight:700;font-size:15px}
.faq-q{flex:1}
.faq-icon{flex:0 0 18px;width:18px;height:18px;position:relative;transition:transform .18s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open]{border-color:var(--brand-500)}
.faq-item[open] .faq-icon{transform:rotate(90deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-item[open] summary{background:var(--sand-100)}
.faq-panel{padding:0 20px 22px 52px;font-size:15px;color:var(--ink-2);background:var(--sand-50);line-height:1.9}
.faq-panel p + p{margin-top:10px}

/* ---------- CTA 条带 ---------- */
.cta-band{position:relative;background:var(--brand-900);overflow:hidden;border-radius:var(--r-card)}
.cta-band::before{content:"";position:absolute;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='80' viewBox='0 0 240 80'%3E%3Cpath d='M0 40c30-26 60-26 90 0s60 26 90 0 60-26 90 0' fill='none' stroke='%23ffffff' stroke-opacity='.12' stroke-width='1'/%3E%3C/svg%3E");
  background-size:380px auto}
.cta-inner{position:relative;text-align:center;padding:52px 24px}
@media(min-width:768px){.cta-inner{padding:64px 40px}}
.cta-title{color:#fff;font-size:clamp(22px,3vw,30px)}
.cta-sub{color:rgba(247,242,232,.82);font-size:15px;margin-top:12px}
.cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:26px;justify-content:center}
@media(min-width:640px){.cta-actions{flex-direction:row}}

/* ---------- 表单 ---------- */
.form-shell{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1)}
@media(min-width:768px){.form-shell{padding:36px 32px}}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.form-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid .field-full{grid-column:1 / -1}}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.field input,.field textarea{width:100%;height:44px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:#fff;transition:border-color .12s ease,box-shadow .12s ease}
.field textarea{height:104px;padding:10px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(18,133,122,.18)}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:14px}
.form-error{font-size:13px;color:var(--accent);margin-top:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(247,242,232,.8);margin-top:0;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(127,195,186,.35)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;padding:64px 0 44px}}
.footer-brand-name{font-size:19px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(247,242,232,.8)}
.footer-col h3{font-size:13px;font-weight:600;color:var(--brand-300);margin-bottom:14px;letter-spacing:.06em}
.footer-col li{font-size:14px;margin-bottom:10px;color:rgba(247,242,232,.8)}
.footer-col a{color:rgba(247,242,232,.8)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:2px}
.footer-bottom{border-top:1px solid rgba(127,195,186,.22);padding:18px 0 26px;font-size:13px;color:rgba(247,242,232,.65)}
@media(min-width:1024px){.footer-bottom{display:flex;align-items:center;justify-content:space-between}}

/* ---------- 通用卡片 ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}
.card:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);transform:translateY(-2px)}
.surface{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1)}
.divider{height:1px;background:var(--line);border:none;margin:0}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B37;
  --brand-700:#0E5A52;
  --brand-600:#12766C;
  --brand-500:#12857A;
  --brand-300:#7FC3BA;
  --brand-100:#DCE9E5;
  --sand-50:#F7F2E8;
  --sand-100:#F1EADC;
  --card:#FFFFFF;
  --accent:#D9663F;
  --ink:#1C2422;
  --ink-2:#55605D;
  --ink-3:#8A928F;
  --line:#E3E0D6;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(12,59,55,.06);
  --shadow-2:0 12px 28px -12px rgba(12,59,55,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.page-body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{list-style:none;padding:0;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:3px solid rgba(18,133,122,.18);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){ .container{padding:0 32px;} }

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,242,232,.92);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:36px;
  padding:0 14px;border-radius:8px;font-size:15px;color:var(--ink);
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  border-radius:2px;background:var(--brand-500);
}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);
  white-space:nowrap;
}
.brand-mark{width:28px;height:28px;flex:none;color:var(--brand-600);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:8px;border:1px solid var(--line);
  background:var(--card);color:var(--brand-700);
}
.nav-toggle:hover{background:var(--brand-100);}
.mobile-drawer{display:none;}
.mobile-drawer.is-open{
  display:block;position:absolute;left:0;right:0;top:100%;
  background:var(--card);border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.mobile-drawer a{
  display:block;padding:0 20px;height:48px;line-height:48px;
  border-bottom:1px solid var(--line);font-size:15px;
}
.mobile-drawer a:hover{background:var(--brand-100);color:var(--brand-700);}
.mobile-drawer .drawer-cta{margin:14px 20px 18px;height:46px;line-height:46px;text-align:center;border:0;}

@media (max-width:767px){
  .nav-left,.nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{height:62px;}
  .brand{font-size:17px;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-100);}
.btn-on-dark{background:#fff;color:var(--brand-900);}
.btn-on-dark:hover{background:var(--brand-100);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(127,195,186,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(127,195,186,.14);}
.text-link{color:var(--brand-700);font-weight:600;font-size:14px;}
.text-link:hover{text-decoration:underline;text-underline-offset:2px;}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
@media (min-width:768px){ .section{padding:96px 0;} }
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{
  position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,30px);
  font-weight:700;letter-spacing:-.01em;color:var(--brand-900);line-height:1.4;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:2px;background:var(--brand-500);
}
.section-head p{font-size:14px;color:var(--ink-2);}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:6px;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;
}
.badge-accent{background:transparent;border:1px solid var(--accent);color:var(--accent);}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:18px;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-2);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:48px 0 56px;
  background:var(--sand-50);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='120' viewBox='0 0 240 120'%3E%3Cpath d='M0 90 C40 60 80 120 120 90 S200 60 240 90' fill='none' stroke='%237FC3BA' stroke-width='1' opacity='0.16'/%3E%3Cpath d='M0 40 C40 10 80 70 120 40 S200 10 240 40' fill='none' stroke='%237FC3BA' stroke-width='1' opacity='0.12'/%3E%3C/svg%3E");
}
.hero-grid{position:relative;z-index:1;display:grid;gap:40px;align-items:center;}
@media (min-width:960px){ .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;} }
.hero h1{
  font-size:clamp(30px,5vw,46px);line-height:1.24;font-weight:700;
  letter-spacing:-.01em;color:var(--brand-900);margin:16px 0 18px;
}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);
}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex:none;
}
.hero-figure{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-figure img{width:100%;aspect-ratio:5/4;object-fit:cover;}
.hero-stamp{
  position:absolute;right:16px;bottom:16px;width:56px;height:56px;border-radius:8px;
  background:rgba(11,59,55,.72);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;line-height:1.3;text-align:center;letter-spacing:.04em;
}

/* ============ 交替图文 ============ */
.zig-row{display:grid;gap:28px;align-items:center;padding-bottom:48px;margin-bottom:48px;border-bottom:1px solid var(--line);}
.zig-row:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0;}
@media (min-width:900px){
  .zig-row{grid-template-columns:1fr 1fr;gap:56px;}
  .zig-row.is-reverse .zig-media{order:2;}
}
.zig-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.zig-text h3{font-size:20px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);margin-bottom:12px;}
.zig-text p{color:var(--ink-2);font-size:15.5px;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{
  position:relative;padding-left:28px;font-size:15px;color:var(--ink);
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding-top:12px;padding-bottom:12px;padding-right:16px;box-shadow:var(--shadow-1);
}
.check-list li::before{
  content:"";position:absolute;left:12px;top:19px;width:9px;height:5px;
  border-left:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(-45deg);
}

/* ============ 数据条 ============ */
.stat-strip{
  background:var(--sand-100);border-radius:var(--radius-card);
  padding:30px 24px;display:grid;gap:22px;grid-template-columns:repeat(2,minmax(0,1fr));
}
@media (min-width:768px){ .stat-strip{grid-template-columns:repeat(4,minmax(0,1fr));padding:36px 32px;} }
.stat-item{padding-left:16px;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:0;padding-left:0;}
@media (max-width:767px){
  .stat-item{padding-left:14px;}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
}
.stat-num{
  display:block;font-size:clamp(24px,3vw,32px);font-weight:700;
  color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat-label{font-size:13.5px;color:var(--ink-2);margin-top:6px;}

/* ============ 要点卡网格（两列） ============ */
.point-grid{display:grid;gap:22px;}
@media (min-width:768px){ .point-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease;
}
.point-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.point-card h3{font-size:17.5px;font-weight:700;color:var(--brand-900);margin-bottom:10px;letter-spacing:-.01em;}
.point-card p{font-size:15px;color:var(--ink-2);}
.point-card .point-foot{margin-top:16px;display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.point-card:hover .point-foot{text-decoration:underline;text-underline-offset:3px;}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);
  padding:64px 0;
}
.cta-wave{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);width:100%;height:200px;pointer-events:none;}
.cta-inner{position:relative;z-index:1;text-align:center;}
.cta-inner h2{
  font-size:clamp(23px,3vw,32px);font-weight:700;letter-spacing:-.01em;color:#fff;line-height:1.4;
}
.cta-inner p{margin-top:14px;color:rgba(220,233,229,.82);font-size:15.5px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:30px;align-items:stretch;}
@media (min-width:640px){ .cta-actions{flex-direction:row;justify-content:center;align-items:center;} }

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--brand-900);color:var(--sand-100);
  padding:56px 0 26px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(127,195,186,.6),transparent);
  opacity:.5;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;} }
.footer-brand-name{font-size:20px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:-.01em;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(241,234,220,.78);max-width:32em;}
.footer-col h3{
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-300);margin-bottom:14px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:rgba(241,234,220,.78);}
.footer-col a{color:rgba(241,234,220,.8);transition:color .16s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(127,195,186,.18);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:rgba(241,234,220,.62);
}
@media (max-width:767px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{justify-content:flex-start;}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B37;
  --brand-700:#0E5A52;
  --brand-600:#12766C;
  --brand-500:#12857A;
  --brand-300:#7FC3BA;
  --brand-100:#DCE9E5;
  --sand-50:#F7F2E8;
  --sand-100:#F1EADC;
  --card:#FFFFFF;
  --accent:#D9663F;
  --accent-dark:#C2552F;
  --ink:#1C2422;
  --ink-2:#55605D;
  --ink-3:#8A928F;
  --line:#E3E0D6;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(12,59,55,.06);
  --shadow-2:0 12px 28px -12px rgba(12,59,55,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid rgba(18,133,122,.18);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:84px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-title{position:relative;padding-left:14px;font-size:24px;font-weight:700;letter-spacing:-0.01em;}
.section-title::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--brand-500);}
@media (min-width:768px){.section-title{font-size:28px;}}
.text-link{color:var(--brand-700);font-size:14px;font-weight:600;transition:color .15s;}
.text-link:hover{color:var(--brand-900);text-decoration:underline;text-underline-offset:3px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .15s ease,box-shadow .15s ease;
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-100);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 12px 28px -12px rgba(217,102,63,.5);}
.btn-on-dark{background:transparent;color:#F7F2E8;border-color:rgba(247,242,232,.42);}
.btn-on-dark:hover{background:rgba(247,242,232,.12);border-color:rgba(247,242,232,.7);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
@media (max-width:640px){.btn-block-mobile{width:100%;}}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;
}
.badge-accent{background:transparent;border:1px solid var(--accent);color:var(--accent);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,242,232,.94);
  border-bottom:1px solid var(--line);
}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;height:72px;}
.nav-side{display:none;}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--ink-2);position:relative;
  transition:color .15s ease,background-color .15s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-700);
}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:8px;color:var(--brand-700);
}
.brand-mark{display:inline-flex;width:28px;height:28px;flex:0 0 28px;align-items:center;justify-content:center;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:var(--card);
}
.nav-toggle span{display:block;height:1.6px;border-radius:2px;background:var(--brand-700);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}
.member-entry{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--brand-700);
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;height:48px;line-height:48px;padding:0 20px;font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:active{background:var(--sand-50);}
.mobile-drawer .drawer-cta{padding:16px 20px 20px;border-bottom:none;}
.mobile-drawer .drawer-cta a{height:44px;line-height:44px;text-align:center;padding:0;border-bottom:none;}
@media (min-width:1024px){
  .nav-left,.nav-right{display:flex;align-items:center;gap:4px;}
  .nav-toggle,.member-entry{display:none;}
  .mobile-drawer{display:none !important;}
}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-top:16px;}
.breadcrumb a{color:var(--ink-2);transition:color .15s;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-3);}

/* 文章头 */
.article-top{padding:36px 0 0;}
.article-title{
  font-size:clamp(26px,4.4vw,40px);font-weight:700;letter-spacing:-0.01em;line-height:1.34;color:var(--ink);
}
.title-rule{width:48px;height:4px;border-radius:2px;background:var(--brand-500);margin:22px 0 0;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--ink-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* 正文布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:28px 0 8px;}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,820px) 260px;gap:56px;justify-content:center;}
}
.article-surface{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:26px 20px;}
@media (min-width:768px){.article-surface{padding:40px 44px;}}
.article-body{font-size:16px;line-height:1.9;color:var(--ink);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{position:relative;font-size:22px;font-weight:700;letter-spacing:-0.01em;margin:40px 0 16px;padding-left:14px;line-height:1.5;}
@media (min-width:768px){.article-body h2{font-size:26px;}}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand-500);}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-900);}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{position:relative;margin-bottom:8px;list-style:none;}
.article-body ul li::before{content:"";position:absolute;left:-16px;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--brand-500);}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:8px;}
.article-body blockquote{
  margin:24px 0;padding:14px 20px;border-left:3px solid var(--brand-300);
  background:var(--sand-100);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body img{border-radius:var(--radius-img);margin:20px 0 8px;}
.article-body figure{margin:20px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:20px 0;}
.article-body th{background:var(--brand-100);font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body pre{
  background:var(--sand-100);border-radius:12px;padding:16px;overflow:auto;margin:20px 0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
  background:var(--sand-100);padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;}

/* 文末标签 */
.article-foot{margin-top:32px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.article-foot .foot-label{font-size:13px;color:var(--ink-3);}

/* 文章侧栏 */
.article-side{display:none;}
@media (min-width:1280px){.article-side{display:block;}}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-1);}
.side-title{font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.04em;margin-bottom:12px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;background:var(--sand-100);color:var(--ink-2);font-size:13px;}
.side-links li + li{margin-top:6px;}
.side-links a{display:block;font-size:14px;color:var(--ink-2);padding:6px 0;transition:color .15s,padding-left .15s;}
.side-links a:hover{color:var(--brand-700);padding-left:4px;}
.side-tip{background:var(--sand-100);border-color:var(--line);}
.side-tip p{font-size:13px;color:var(--ink-2);line-height:1.8;}

/* 空状态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--card);
  padding:48px 24px;text-align:center;
}
.empty-mark{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--ink-2);margin-bottom:20px;}

/* 继续了解卡片 */
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.mini-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease;
}
.mini-card:hover{border-color:var(--brand-500);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.mini-cover{aspect-ratio:16/10;background:var(--brand-100);overflow:hidden;}
.mini-cover img{width:100%;height:100%;object-fit:cover;}
.mini-body{padding:18px;display:flex;flex-direction:column;gap:10px;}
.mini-body h3{font-size:17px;font-weight:600;line-height:1.55;transition:color .15s;}
.mini-card:hover .mini-body h3{color:var(--brand-700);}
.mini-body p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* CTA 条带 */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:#F7F2E8;margin-top:56px;}
@media (min-width:768px){.cta-band{margin-top:84px;}}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='48' viewBox='0 0 160 48'%3E%3Cpath d='M0 34c18 0 24-14 36-14s18 14 36 14 24-14 36-14 18 14 36 14' fill='none' stroke='%23DCE9E5' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat:repeat;
}
.cta-inner{position:relative;padding:48px 0;text-align:center;}
@media (min-width:768px){.cta-inner{padding:64px 0;}}
.cta-band h2{font-size:clamp(22px,3.4vw,30px);font-weight:700;letter-spacing:-0.01em;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(247,242,232,.78);}
.cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:26px;justify-content:center;}
@media (min-width:640px){.cta-actions{flex-direction:row;}}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(247,242,232,.8);position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:rgba(220,233,229,.24);
}
.site-footer::after{
  content:"";position:absolute;inset:0;opacity:.1;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='48' viewBox='0 0 160 48'%3E%3Cpath d='M0 34c18 0 24-14 36-14s18 14 36 14 24-14 36-14 18 14 36 14' fill='none' stroke='%23DCE9E5' stroke-width='1'/%3E%3C/svg%3E");
  background-repeat:repeat;
}
.footer-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand-name{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:-0.01em;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(247,242,232,.72);}
.footer-col h3{font-size:13px;font-weight:600;color:var(--brand-300);letter-spacing:.04em;margin-bottom:14px;}
.footer-col li{font-size:14px;line-height:1.8;color:rgba(247,242,232,.8);}
.footer-col li + li{margin-top:8px;}
.footer-col a{color:rgba(247,242,232,.8);transition:color .15s;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  position:relative;border-top:1px solid rgba(220,233,229,.18);
  padding:20px 0 28px;display:flex;flex-direction:column;gap:8px;
  font-size:13px;color:rgba(247,242,232,.6);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* roulang page: category2 */
:root{
    --brand-900:#0B3B37;
    --brand-700:#0E5A52;
    --brand-600:#12766C;
    --brand-500:#12857A;
    --brand-300:#7FC3BA;
    --brand-100:#DCE9E5;
    --sand-50:#F7F2E8;
    --sand-100:#F1EADC;
    --card:#FFFFFF;
    --accent:#D9663F;
    --ink:#1C2422;
    --ink-2:#55605D;
    --ink-3:#8A928F;
    --line:#E3E0D6;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-img:14px;
    --shadow-1:0 1px 2px rgba(12,59,55,.06);
    --shadow-2:0 12px 28px -12px rgba(12,59,55,.18);
    --font-sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background-color:var(--sand-50);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;font-size:inherit}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.32}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  figure{margin:0}
  summary{list-style:none;cursor:pointer}
  summary::-webkit-details-marker{display:none}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
    outline:3px solid rgba(18,133,122,.18);
    outline-offset:2px;
    border-radius:8px;
  }
  .brand-900-bg input:focus-visible,.page-hero input:focus-visible{outline-color:rgba(127,195,186,.55)}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .container{padding:0 32px} }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(247,242,232,.94);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    height:74px;
    gap:16px;
  }
  .nav-side{display:flex;align-items:center;gap:4px}
  .nav-left{justify-content:flex-start}
  .nav-right{justify-content:flex-end;gap:12px}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--ink-2);
    padding:8px 14px;
    border-radius:8px;
    transition:color .18s ease,background-color .18s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--brand-700);background:var(--brand-100)}
  .nav-link.is-active{color:var(--brand-700);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
    background:var(--brand-700);border-radius:2px;
  }
  .brand{display:flex;align-items:center;gap:8px;justify-self:center}
  .brand-mark{width:28px;height:28px;flex:0 0 28px;color:var(--brand-600)}
  .brand-name{font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:-0.01em;white-space:nowrap}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;
    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-primary{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
  .btn-ghost:hover{background:var(--brand-100)}
  .btn-on-dark{background:#fff;color:var(--brand-900)}
  .btn-on-dark:hover{background:var(--brand-100);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.14)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
  .btn-block{width:100%}

  .mobile-bar{display:none;align-items:center;justify-content:space-between;height:62px}
  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--brand-900);
    cursor:pointer;transition:border-color .18s ease,background-color .18s ease;
  }
  .menu-toggle:hover{border-color:var(--brand-500);background:var(--brand-100)}
  .mobile-brand{display:flex;align-items:center;gap:7px}
  .mobile-brand .brand-mark{width:24px;height:24px;flex:0 0 24px}
  .mobile-brand .brand-name{font-size:17px}
  .member-icon{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:10px;color:var(--brand-700);
    border:1px solid var(--line);background:#fff;
  }
  .member-icon:hover{border-color:var(--brand-500);background:var(--brand-100)}
  .mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line)}
  .mobile-drawer.is-open{display:block}
  .mobile-drawer a.drawer-link{
    display:block;padding:0 20px;height:48px;line-height:48px;
    font-size:15px;color:var(--ink-2);border-top:1px solid var(--line);
  }
  .mobile-drawer a.drawer-link:hover{color:var(--brand-700);background:var(--brand-100)}
  .mobile-drawer a.drawer-link.is-active{color:var(--brand-700);font-weight:600}
  .drawer-cta{padding:16px 20px 20px;border-top:1px solid var(--line)}

  @media (max-width:900px){
    .header-inner{display:none}
    .mobile-bar{display:flex}
  }
  @media (min-width:901px){
    .mobile-drawer{display:none !important}
  }

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;
    background-color:var(--brand-900);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    color:#fff;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;background:rgba(11,59,55,.88);
  }
  .page-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:90px;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='60' viewBox='0 0 240 60'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='1' stroke-opacity='0.12'%3E%3Cpath d='M0 30c15 0 15-12 30-12s15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12'/%3E%3C/g%3E%3C/svg%3E");
    background-repeat:repeat-x;
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;padding:64px 0 72px;max-width:820px}
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--brand-300);margin-bottom:22px;
  }
  .breadcrumb a{color:var(--brand-300);transition:color .18s ease}
  .breadcrumb a:hover{color:#fff}
  .breadcrumb .sep{color:rgba(127,195,186,.5)}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(127,195,186,.16);
    border:1px solid rgba(127,195,186,.42);
    color:#DFF1ED;font-size:13px;font-weight:600;letter-spacing:.02em;
    margin-bottom:20px;
  }
  .page-hero h1{
    font-size:clamp(28px,4.6vw,44px);
    color:#fff;
    margin-bottom:20px;
  }
  .hero-lead{
    font-size:17px;line-height:1.9;color:rgba(241,234,220,.86);
    max-width:700px;margin-bottom:30px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px}
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:28px;
    margin-top:38px;padding-top:24px;
    border-top:1px solid rgba(127,195,186,.26);
    font-size:13px;color:rgba(241,234,220,.75);
  }
  .hero-meta strong{display:block;font-size:20px;color:#fff;font-variant-numeric:tabular-nums;font-weight:700}

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0}
  @media (min-width:768px){ .section{padding:80px 0} }
  .section-head{margin-bottom:34px;max-width:760px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:13px;font-weight:600;color:var(--brand-600);
    letter-spacing:.04em;margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand-500)}
  .section-head h2, .h2{
    font-size:clamp(22px,3vw,30px);color:var(--brand-900);
  }
  .section-head p{margin-top:12px;color:var(--ink-2);font-size:15px}

  /* ---------- 等级速览条 ---------- */
  .tier-strip{
    background:var(--sand-100);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .tier-strip-inner{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:0;
  }
  .tier-cell{
    padding:28px 22px 26px;
    border-left:1px solid var(--line);
  }
  .tier-cell:first-child{border-left:0}
  .tier-cell .tier-name{
    font-size:16px;font-weight:700;color:var(--brand-900);margin-bottom:6px;
  }
  .tier-cell .tier-desc{font-size:13.5px;color:var(--ink-2);line-height:1.75}
  .tier-cell .tier-tag{
    display:inline-block;margin-top:12px;
    font-size:12px;font-weight:600;color:var(--brand-700);
    background:var(--brand-100);border-radius:6px;padding:3px 9px;
  }
  @media (max-width:1023px){
    .tier-strip-inner{grid-template-columns:repeat(2,1fr)}
    .tier-cell{border-top:1px solid var(--line)}
    .tier-cell:nth-child(1),.tier-cell:nth-child(2){border-top:0}
    .tier-cell:nth-child(3){border-left:0}
  }
  @media (max-width:560px){
    .tier-strip-inner{grid-template-columns:1fr}
    .tier-cell{border-left:0;border-top:1px solid var(--line)}
    .tier-cell:first-child{border-top:0}
  }

  /* ---------- 目录 + 编号条目 ---------- */
  .cat-layout{
    display:grid;
    grid-template-columns:250px minmax(0,1fr);
    gap:56px;
    align-items:start;
  }
  .toc{
    position:sticky;top:100px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px 18px;
    box-shadow:var(--shadow-1);
  }
  .toc-title{
    font-size:13px;font-weight:600;color:var(--ink-3);
    letter-spacing:.06em;margin-bottom:12px;
  }
  .toc-list{display:flex;flex-direction:column;gap:2px}
  .toc-link{
    display:flex;gap:10px;align-items:baseline;
    padding:9px 12px;border-radius:9px;
    font-size:14px;color:var(--ink-2);line-height:1.6;
    transition:color .18s ease,background-color .18s ease;
  }
  .toc-link span.num{font-size:12px;color:var(--brand-300);font-variant-numeric:tabular-nums;font-weight:700}
  .toc-link:hover{color:var(--brand-700);background:var(--brand-100)}
  .toc-link.is-active{color:var(--brand-700);background:var(--brand-100);font-weight:600}
  .toc-link.is-active span.num{color:var(--brand-600)}
  .toc-foot{
    margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
    font-size:13px;color:var(--ink-3);line-height:1.7;
  }

  .steps{display:flex;flex-direction:column}
  .step{
    padding:0 0 40px;
    margin-bottom:40px;
    border-bottom:1px solid var(--line);
  }
  .step:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
  .step-head{display:flex;align-items:baseline;gap:16px;margin-bottom:14px}
  .step-num{
    font-size:clamp(30px,4vw,40px);
    font-weight:700;line-height:1;
    color:var(--brand-300);
    font-variant-numeric:tabular-nums;
    letter-spacing:-0.03em;
  }
  .step-title{font-size:clamp(20px,2.4vw,24px);color:var(--brand-900)}
  .step-text{color:var(--ink);font-size:16px;line-height:1.9;max-width:44em}
  .step-text + .step-text{margin-top:14px}
  .list-check{margin-top:18px;display:flex;flex-direction:column;gap:10px}
  .list-check li{
    position:relative;padding-left:30px;font-size:15px;color:var(--ink-2);line-height:1.8;
  }
  .list-check li::before{
    content:"";position:absolute;left:0;top:9px;
    width:18px;height:18px;border-radius:50%;
    background:var(--brand-100);
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 6.2l2.2 2.2L9.5 3.6' fill='none' stroke='%230E5A52' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:center;
  }

  .step-figure{margin-top:26px}
  .step-figure img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:var(--radius-img);border:1px solid var(--line);
  }
  .step-figure figcaption{
    margin-top:10px;font-size:13px;color:var(--ink-3);line-height:1.7;
  }

  /* ---------- 清单对比卡 ---------- */
  .check-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);
    padding:26px;
    margin:34px 0 0;
  }
  .check-card h3{font-size:18px;color:var(--brand-900);margin-bottom:6px}
  .check-card .check-note{font-size:13.5px;color:var(--ink-2);margin-bottom:20px}
  .check-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
  .check-col-title{
    display:flex;align-items:center;gap:8px;
    font-size:14px;font-weight:700;color:var(--brand-700);
    margin-bottom:12px;
  }
  .check-col-title .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-500)}
  .check-col-title.muted{color:var(--ink-3)}
  .check-col-title.muted .dot{background:var(--ink-3)}
  .check-list{display:flex;flex-direction:column;gap:10px}
  .check-list li{
    font-size:14.5px;color:var(--ink-2);line-height:1.75;
    padding:12px 14px;border-radius:10px;background:var(--sand-50);
    border:1px solid var(--line);
  }
  .check-list.muted li{background:transparent;color:var(--ink-3)}
  @media (max-width:640px){ .check-grid{grid-template-columns:1fr;gap:20px} }

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px}
  .faq{
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--card);
    overflow:hidden;
    box-shadow:var(--shadow-1);
  }
  .faq-item{border-top:1px solid var(--line)}
  .faq-item:first-child{border-top:0}
  .faq-item summary{
    display:flex;align-items:center;gap:14px;
    padding:18px 22px;
    font-size:16px;font-weight:600;color:var(--brand-900);
    transition:background-color .18s ease,color .18s ease;
  }
  .faq-item summary:hover{background:var(--sand-50)}
  .faq-item summary .q-num{
    font-size:13px;font-weight:700;color:var(--brand-500);
    font-variant-numeric:tabular-nums;flex:0 0 26px;
  }
  .faq-item summary .q-text{flex:1;min-width:0}
  .faq-item summary .q-icon{
    flex:0 0 18px;width:18px;height:18px;position:relative;
    transition:transform .22s ease;
  }
  .faq-item summary .q-icon::before,
  .faq-item summary .q-icon::after{
    content:"";position:absolute;background:var(--brand-600);border-radius:2px;
  }
  .faq-item summary .q-icon::before{left:0;top:8px;width:18px;height:1.6px}
  .faq-item summary .q-icon::after{left:8px;top:0;width:1.6px;height:18px}
  .faq-item[open] summary{color:var(--brand-700);border-bottom:1px solid var(--line)}
  .faq-item[open] summary .q-icon{transform:rotate(90deg)}
  .faq-item[open]{border-color:var(--brand-500)}
  .faq-answer{
    padding:18px 22px 22px 62px;
    font-size:15px;color:var(--ink-2);line-height:1.9;
    background:var(--sand-50);
  }
  @media (max-width:640px){
    .faq-answer{padding:16px 18px 20px 18px}
    .faq-item summary{padding:16px 16px;gap:10px;font-size:15px}
  }

  /* ---------- CTA 条带 ---------- */
  .cta-band{
    position:relative;
    background:var(--brand-900);
    color:#fff;
    overflow:hidden;
    padding:56px 0;
  }
  .cta-band::before{
    content:"";position:absolute;top:0;left:0;right:0;height:70px;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='60' viewBox='0 0 240 60'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='1' stroke-opacity='0.12'%3E%3Cpath d='M0 30c15 0 15-12 30-12s15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12'/%3E%3C/g%3E%3C/svg%3E");
    background-repeat:repeat-x;pointer-events:none;
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
  }
  .cta-copy{max-width:640px}
  .cta-title{font-size:clamp(22px,3vw,30px);color:#fff;font-weight:700;line-height:1.35}
  .cta-sub{margin-top:10px;font-size:15px;color:rgba(241,234,220,.82)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}
  @media (max-width:900px){
    .cta-inner{flex-direction:column;align-items:flex-start}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 200px}
  }
  @media (max-width:520px){
    .cta-actions{flex-direction:column}
    .cta-actions .btn{width:100%;flex:none}
  }

  /* ---------- Footer ---------- */
  .site-footer{
    position:relative;
    background:var(--brand-900);
    color:var(--sand-100);
    padding:56px 0 26px;
    overflow:hidden;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:60px;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='60' viewBox='0 0 240 60'%3E%3Cg fill='none' stroke='%237FC3BA' stroke-width='1' stroke-opacity='0.18'%3E%3Cpath d='M0 30c15 0 15-12 30-12s15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12 15-12 30-12 15 12 30 12'/%3E%3C/g%3E%3C/svg%3E");
    background-repeat:repeat-x;pointer-events:none;
  }
  .footer-grid{
    position:relative;z-index:2;
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:36px;
    padding-bottom:36px;
    border-bottom:1px solid rgba(127,195,186,.22);
  }
  .footer-brand-name{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px}
  .footer-col p{font-size:13.5px;color:rgba(241,234,220,.78);line-height:1.85;max-width:34em}
  .footer-col h3{
    font-size:13px;font-weight:600;color:var(--brand-300);
    letter-spacing:.08em;margin-bottom:14px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col ul li{font-size:13.5px;color:rgba(241,234,220,.8);line-height:1.7}
  .footer-col ul li a{color:rgba(241,234,220,.8);transition:color .18s ease}
  .footer-col ul li a:hover{color:#fff}
  .footer-bottom{
    position:relative;z-index:2;
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
    padding-top:22px;
    font-size:13px;color:rgba(241,234,220,.66);
  }
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr}
    .footer-brand{grid-column:1 / -1}
  }
  @media (max-width:767px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  }
  @media (max-width:520px){
    .footer-bottom{flex-direction:column;gap:6px}
  }

  /* ---------- 目录响应式 ---------- */
  @media (max-width:1023px){
    .cat-layout{grid-template-columns:1fr;gap:28px}
    .toc{
      position:sticky;top:62px;z-index:20;
      padding:12px;border-radius:14px;
      box-shadow:var(--shadow-1);
    }
    .toc-title{display:none}
    .toc-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:2px;scrollbar-width:thin}
    .toc-link{
      flex:0 0 auto;white-space:nowrap;
      background:var(--sand-50);border:1px solid var(--line);
      padding:7px 14px;border-radius:999px;font-size:13px;
    }
    .toc-link span.num{display:none}
    .toc-foot{display:none}
  }