/* roulang page: index */
:root{
  --brand-900:#093B3C;--brand-700:#0E4749;--brand-500:#17706C;
  --mint-400:#2E9E8F;--accent-500:#FF7A2F;--accent-100:#FFE8D9;
  --paper:#F7F5F0;--card:#FFFFFF;--ink-900:#1D2A29;--ink-600:#566462;
  --ink-400:#8A9694;--line:#E5E1D8;--ok:#2E9E8F;
  --c-bg:var(--paper);--c-surface:var(--card);--c-text:var(--ink-900);
  --c-text-2:var(--ink-600);--c-border:var(--line);--c-primary:var(--brand-700);
  --c-accent:var(--accent-500);
  --shadow-1:0 1px 2px rgba(29,42,41,.05),0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --r-card:14px;--r-img:12px;--r-btn:10px;--r-input:10px;--r-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate",Bahnschrift,ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);font-family:var(--font-cn);
  font-size:17px;line-height:1.9;letter-spacing:.01em;font-weight:400;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.02em;font-weight:700}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
@media(min-width:1440px){.container{max-width:1280px}}

/* ============ 顶部倒计时条 ============ */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.14);height:44px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;font-size:13.5px;line-height:1.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(255,122,47,.18);flex:none}
.topbar-right{display:flex;align-items:center;gap:8px}
.tcell{display:flex;align-items:center;gap:6px}
.tcell b{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.08);color:var(--accent-500);font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}
.tcell i{font-style:normal;font-size:12px;color:rgba(255,255,255,.6)}
.topbar-compact{display:none;font-family:var(--font-num);color:var(--accent-500);font-weight:700;font-size:14px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid transparent;transition:box-shadow 220ms var(--ease),border-color 220ms var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(14,71,73,.6)}
.nav-inner{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-700);display:flex;align-items:center;justify-content:center;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:16.5px;font-weight:800;color:var(--brand-900);letter-spacing:.02em}
.brand-sub{font-size:14px;font-weight:700;color:var(--brand-900);opacity:.6;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:12px;flex:1;min-width:0}
.nav-links a{position:relative;font-size:15.5px;color:var(--ink-600);padding:6px 0;white-space:nowrap;transition:color 200ms var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand-500);transition:width 220ms var(--ease)}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--brand-900);font-weight:700}
.nav-links a.is-active::after{width:20px}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.search-box{position:relative;width:200px}
.search-box svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);opacity:.5}
.search-box input{width:100%;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;padding:0 14px 0 38px;font-size:14px;outline:none;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.search-box input::placeholder{color:var(--ink-400)}
.search-box input:focus{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.14)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:background 220ms var(--ease),color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(233,106,32,.9)}
.btn-primary:hover{background:#E96A20;box-shadow:0 14px 28px -14px rgba(233,106,32,.95);transform:translateY(-2px)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:rgba(14,71,73,.08)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative;transition:background 200ms var(--ease)}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);transition:transform 220ms var(--ease)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.drawer{position:fixed;inset:0;z-index:80;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(9,59,60,.45);opacity:0;transition:opacity 220ms var(--ease)}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;padding:20px 20px 28px;display:flex;flex-direction:column;gap:18px;transform:translateX(100%);transition:transform 260ms var(--ease);overflow-y:auto}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--ink-600)}
.drawer .search-box{width:100%}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-600)}
.drawer-links a.is-active{color:var(--brand-900);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ============ Hero ============ */
.hero{position:relative;background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(14,71,73,.06) 1px,transparent 1px);background-size:22px 22px;opacity:.8;pointer-events:none}
.hero-inner{position:relative;padding:72px 0 84px;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-700);background:var(--accent-100);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:20px;font-weight:600}
.hero h1{font-size:clamp(30px,4vw,46px);font-weight:800;color:var(--brand-900);margin-bottom:18px;letter-spacing:.02em}
.hero h1 em{font-style:normal;color:var(--brand-500)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-600);max-width:36em;margin-bottom:28px}
.hero-cta{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15.5px;font-weight:600;color:var(--brand-700);border-bottom:1.5px solid rgba(14,71,73,.25);padding-bottom:3px;transition:border-color 200ms var(--ease),gap 200ms var(--ease)}
.link-arrow:hover{border-color:var(--brand-700);gap:12px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.tag-pill{font-size:13px;padding:5px 14px;border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink-600);background:#fff}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-2)}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(9,59,60,.62) 0%,rgba(9,59,60,.12) 55%,rgba(9,59,60,0) 100%)}
.hero-badge{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.94);border-radius:var(--r-img);padding:12px 16px;display:flex;align-items:center;gap:12px;max-width:78%}
.hero-badge b{font-family:var(--font-num);font-size:22px;color:var(--brand-700)}
.hero-badge span{font-size:13px;color:var(--ink-600);line-height:1.5}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:30px;color:var(--brand-900);font-weight:800}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--ink-600);max-width:52em}
.section-head .more{font-size:14.5px;font-weight:600;color:var(--brand-700);border-bottom:1.5px solid rgba(14,71,73,.25);padding-bottom:2px;transition:border-color 200ms var(--ease)}
.section-head .more:hover{border-color:var(--brand-700)}
.bg-paper{background:var(--paper)}

/* ============ 卖点错落列表 ============ */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 48px}
.feature-grid > .feature-item:nth-child(even){transform:translateY(24px)}
.feature-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.feature-no{width:56px;height:56px;flex:none;border:1.5px solid var(--brand-500);border-radius:14px;display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:19px;font-weight:700;color:var(--brand-700);background:#fff}
.feature-body h3{font-size:20px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.feature-body p{font-size:15px;line-height:1.75;color:var(--ink-600);margin:0}

/* ============ 亮点图墙 ============ */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:170px;gap:16px}
.g-item{position:relative;overflow:hidden;border-radius:var(--r-img);box-shadow:var(--shadow-1);display:block}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.g-item::after{content:"";position:absolute;inset:auto 0 0 0;height:64px;background:linear-gradient(180deg,rgba(9,59,60,0),rgba(9,59,60,.78))}
.g-cap{position:absolute;left:14px;right:14px;bottom:12px;z-index:2;color:#fff;font-size:13px;line-height:1.5;font-weight:600}
.g-desc{display:block;font-size:12.5px;font-weight:400;color:rgba(255,255,255,.82);max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);line-height:1.6}
.g-item:hover img{transform:scale(1.03)}
.g-item:hover .g-desc{max-height:44px;margin-top:4px}
.g-tall{grid-row:span 2}
.g-wide{grid-column:span 2}
.g-mid{grid-row:span 2}

/* ============ CTA 表单 ============ */
.cta-band{background:var(--brand-700);color:#fff;border-radius:0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.06) 0%,transparent 42%);pointer-events:none}
.cta-inner{position:relative;padding:64px 0;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta-copy h2{font-size:30px;font-weight:800;color:#fff;margin-bottom:14px}
.cta-copy p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:30em}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.86)}
.cta-points svg{flex:none;margin-top:5px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;color:rgba(255,255,255,.82);font-weight:600}
.field input,.field select,.field textarea{background:#fff;border:1.5px solid transparent;border-radius:var(--r-input);padding:11px 14px;font-size:15px;color:var(--ink-900);outline:none;transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);width:100%}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.22)}
.form-note{grid-column:1/-1;font-size:12.5px;color:rgba(255,255,255,.62);line-height:1.7;margin-top:2px}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow 220ms var(--ease),border-color 220ms var(--ease)}
.faq-item.is-open{box-shadow:var(--shadow-1);border-color:rgba(14,71,73,.18)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:none;border:0;padding:20px 24px;cursor:pointer;font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.6}
.faq-icon{flex:none;width:24px;height:24px;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform 220ms var(--ease),opacity 220ms var(--ease)}
.faq-icon::before{left:5px;top:11px;width:14px;height:2px}
.faq-icon::after{left:11px;top:5px;width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-600)}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform 220ms var(--ease),box-shadow 220ms var(--ease)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{display:inline-flex;align-self:flex-start;font-size:13px;line-height:1.6;padding:3px 12px;border-radius:var(--r-pill);background:var(--accent-100);color:#C25312;font-weight:600}
.news-body h3{font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14.5px;line-height:1.75;color:var(--ink-600);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-400)}
.news-meta .dot{opacity:.6}
.empty-state{grid-column:1/-1;min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);padding:32px;text-align:center}
.empty-state p{font-size:15px;color:var(--ink-600);margin:0}

/* ============ 数据与信任 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px}
.stat b{display:block;font-family:var(--font-num);font-size:32px;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-600);line-height:1.7}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:0}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-main,.footer-brand .brand-sub{color:#fff}
.footer-brand .brand-sub{opacity:.6}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-links{display:flex;flex-direction:column}
.footer-links a{font-size:14px;line-height:2.2;color:rgba(255,255,255,.72);transition:color 200ms var(--ease)}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.55);line-height:1.9}

/* ============ 响应式 ============ */
@media(max-width:1279px){
  .nav-links{gap:20px}
  .search-box{width:160px}
  .hero-inner{grid-template-columns:6fr 6fr;gap:40px}
  .gallery{grid-auto-rows:150px}
}
@media(max-width:1023px){
  .nav-links{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .search-box{display:none}
  .nav-actions .btn-outline{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:52px 0 64px}
  .hero-figure{aspect-ratio:16/9;max-height:340px}
  .section{padding:64px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-grid > .feature-item:nth-child(even){transform:none}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}
  .g-wide{grid-column:span 1}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(2){border-right:0;padding-right:0}
  .footer-col:nth-child(3){padding-left:0;border-right:1px solid rgba(255,255,255,.12)}
  .footer-col:nth-child(4){padding-right:0;border-right:0}
}
@media(max-width:767px){
  .container{padding:0 18px}
  .topbar{height:40px}
  .topbar-right{display:none}
  .topbar-compact{display:inline}
  .topbar-left{font-size:12.5px;max-width:56%}
  .nav-links{display:none}
  .nav-actions{display:none}
  .hamburger{display:flex}
  .nav-inner{justify-content:space-between}
  .hero h1{font-size:30px}
  .hero-figure{aspect-ratio:auto;height:200px}
  .hero-cta{gap:14px;flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .link-arrow{justify-content:center}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:130px;gap:12px}
  .g-tall,.g-mid{grid-row:span 1}
  .g-desc{max-height:44px;margin-top:4px}
  .form-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:14px}
  .stat b{font-size:26px}
  .cta-copy h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col{padding:0;border-right:0;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:24px}
  .footer-col:last-child{border-bottom:0;padding-bottom:0}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:0 18px 18px}
}
@media(max-width:520px){
  .hero-tags .tag-pill{font-size:12.5px;padding:4px 11px}
  .feature-item{gap:14px}
  .feature-no{width:46px;height:46px;font-size:17px}
  .stats{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --brand-900:#093B3C;
  --brand-700:#0E4749;
  --brand-500:#17706C;
  --mint-400:#2E9E8F;
  --accent-500:#FF7A2F;
  --accent-600:#E96A20;
  --accent-100:#FFE8D9;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink-900:#1D2A29;
  --ink-600:#566462;
  --ink-400:#8A9694;
  --line:#E5E1D8;
  --ok:#2E9E8F;
  --c-bg:var(--paper);
  --c-surface:var(--card);
  --c-text:var(--ink-900);
  --c-text-2:var(--ink-600);
  --c-border:var(--line);
  --c-primary:var(--brand-700);
  --c-accent:var(--accent-500);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(29,42,41,.05),0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 18px}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ===== 顶部倒计时条 ===== */
.countdown-bar{
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.82);
  font-size:13.5px;
}
.countdown-inner{
  min-height:42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.cd-label{display:flex;align-items:center;gap:8px;letter-spacing:.02em}
.cd-dot{width:7px;height:7px;border-radius:50%;background:var(--accent-500);box-shadow:0 0 0 4px rgba(255,122,47,.18)}
.cd-timer{display:flex;align-items:center;gap:8px}
.cd-unit{display:flex;align-items:center;gap:3px}
.cd-unit b{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:13.5px;
  color:var(--accent-500);
  background:rgba(255,255,255,.08);
  min-width:32px;
  height:26px;
  padding:0 5px;
  border-radius:7px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.cd-unit i{font-style:normal;font-size:12px;color:rgba(255,255,255,.6)}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -20px rgba(14,71,73,.55);
}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(150deg,var(--brand-700),var(--brand-500));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px -12px rgba(14,71,73,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:16.5px;font-weight:800;color:var(--brand-900);letter-spacing:.02em}
.brand-sub{font-size:14.3px;font-weight:700;color:var(--brand-900);opacity:.6;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;flex:1 1 auto}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--ink-600);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--brand-500);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--brand-900);font-weight:700}
.nav-links a.is-active::after{width:20px}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  position:relative;
  width:200px;
  display:flex;
  align-items:center;
}
.nav-search input{
  width:100%;
  height:40px;
  border:1px solid var(--line);
  background:#FFFFFF;
  border-radius:999px;
  padding:0 16px 0 38px;
  font-size:14px;
  color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{border-color:var(--mint-400);outline:none;box-shadow:0 0 0 3px rgba(46,158,143,.16)}
.search-icon{position:absolute;left:14px;width:15px;height:15px;stroke:var(--ink-400);fill:none;stroke-width:1.8;pointer-events:none}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  border:1.5px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent-500);
  color:#fff;
  border-radius:999px;
  box-shadow:0 10px 22px -14px rgba(255,122,47,.9);
}
.btn-primary:hover{background:var(--accent-600);box-shadow:0 16px 28px -14px rgba(255,122,47,.95);transform:translateY(-2px)}
.btn-outline{
  background:transparent;
  color:var(--brand-700);
  border-color:var(--brand-700);
  border-radius:999px;
}
.btn-outline:hover{background:rgba(23,112,108,.08)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  border-bottom:1px solid rgba(23,112,108,.3);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow:hover{color:var(--accent-500);border-color:var(--accent-500)}

/* ===== 移动抽屉 ===== */
.mobile-drawer{
  border-top:1px solid var(--line);
  background:#FFFFFF;
  padding:18px 0 22px;
  box-shadow:0 18px 30px -24px rgba(14,71,73,.6);
}
.mobile-drawer[hidden]{display:none}
.drawer-search input{
  width:100%;height:44px;border:1px solid var(--line);border-radius:999px;
  padding:0 18px;font-size:15px;background:var(--paper);
}
.drawer-search input:focus{outline:none;border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.16)}
.drawer-nav{display:flex;flex-direction:column;margin:14px 0 18px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-600);
}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:700}
.drawer-nav a::after{content:"›";color:var(--ink-400);font-size:18px}
.mobile-drawer .btn{height:48px}

/* ===== 面包屑 ===== */
.crumb-bar{padding:22px 0 0}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-400);
  line-height:1.7;
}
.crumb a{color:var(--ink-400);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink-600);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章头部 ===== */
.article-head{padding:26px 0 8px}
.article-head-inner{max-width:800px;margin:0 auto;padding:0 24px}
.article-head h1{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:800;
  color:var(--brand-900);
  letter-spacing:.015em;
  line-height:1.35;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:18px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
  font-size:13.5px;
  color:var(--ink-400);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:var(--accent-100);
  color:var(--accent-600);
}
.tag-mint{background:rgba(46,158,143,.12);color:var(--brand-500)}
.meta-views em{font-style:normal;font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink-600);font-weight:700}

/* ===== 正文 ===== */
.article-wrap{padding:34px 0 0}
.article-body{max-width:780px;margin:0 auto;padding:0 24px}
.article-body p{font-size:17px;line-height:1.9;margin:0 0 1.35em;color:var(--ink-900)}
.article-body h2{
  font-size:24px;
  color:var(--brand-900);
  margin:2em 0 .6em;
  padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:2px;
  background:var(--mint-400);
}
.article-body h3{font-size:20px;color:var(--brand-700);margin:1.7em 0 .5em}
.article-body h4{font-size:17px;color:var(--brand-700);margin:1.4em 0 .4em}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body ul,.article-body ol{margin:0 0 1.4em}
.article-body ul li{
  position:relative;
  padding-left:22px;
  margin:.4em 0;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:var(--mint-400);
}
.article-body ol{counter-reset:li}
.article-body ol li{
  position:relative;
  padding-left:26px;
  margin:.4em 0;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-600);
  counter-increment:li;
}
.article-body ol li::before{
  content:counter(li);
  position:absolute;
  left:0;top:.18em;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--accent-500);
}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  border-left:3px solid var(--mint-400);
  background:#FFFFFF;
  border-radius:0 12px 12px 0;
}
.article-body blockquote p{margin:0;font-size:16.5px;color:var(--ink-600)}
.article-body strong{font-weight:700;color:var(--brand-900)}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(23,112,108,.35);transition:color .2s var(--ease),border-color .2s var(--ease)}
.article-body a:hover{color:var(--accent-500);border-color:var(--accent-500)}
.article-body img{border-radius:var(--radius-img);margin:1.6em 0;width:100%}
.article-body figure{margin:1.8em 0}
.article-body figure img{margin:0}
.article-body figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--ink-400)}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;line-height:1.7}
.article-body th{background:var(--paper);color:var(--brand-900);font-weight:600}
.article-body code{
  font-family:var(--mono);
  font-size:14.5px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
}

/* ===== 空态 ===== */
.empty-card{
  max-width:780px;
  margin:0 auto;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:48px 28px;
  text-align:center;
}
.empty-card .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;
  border-radius:16px;
  background:var(--accent-100);
  display:flex;align-items:center;justify-content:center;
}
.empty-card h2{font-size:20px;color:var(--brand-900);margin-bottom:10px}
.empty-card p{font-size:15px;color:var(--ink-600);margin-bottom:22px}

/* ===== 板块通用 ===== */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:26px;color:var(--brand-900)}
.section-sub{font-size:14px;color:var(--ink-400)}
.section-head .more-link{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;gap:6px;align-items:center}
.section-head .more-link:hover{color:var(--accent-500)}

/* ===== 相关推荐 ===== */
.related{background:var(--paper);border-top:1px solid var(--line)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;
  flex-direction:column;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(46,158,143,.4)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.rel-body h3{
  font-size:16.5px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-body .meta{font-size:12.5px;color:var(--ink-400);display:flex;align-items:center;gap:8px}
.rel-body .meta time{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ===== 返回入口 ===== */
.back-row{
  padding:0 0 88px;
}
.back-row .container{display:flex;justify-content:center}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  padding:12px 24px;
  border:1.5px solid var(--line);
  border-radius:999px;
  background:#FFFFFF;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.back-link:hover{border-color:var(--brand-700);color:var(--accent-500);transform:translateY(-2px);box-shadow:var(--shadow-1)}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 26px;font-size:14px}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:0;
}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{border-left:none;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.08);box-shadow:none}
.footer-brand .brand-main{color:#FFFFFF}
.footer-brand .brand-sub{color:#FFFFFF}
.site-footer h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:14px;letter-spacing:.03em}
.site-footer p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  font-size:14px;
  line-height:2.2;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
  width:fit-content;
}
.footer-links a:hover{color:var(--accent-500);transform:translateX(3px)}
.footer-bottom{
  margin-top:46px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .nav-links{gap:20px}
  .nav-search{width:160px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col:nth-child(1){padding-left:0}
  .footer-col:nth-child(3){border-left:none;padding-left:0}
  .nav-search{display:none}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:62px;gap:12px}
  .header-actions .btn-outline{display:none}
  .countdown-inner{min-height:44px;justify-content:center}
  .cd-label{font-size:12.5px}
  .cd-unit--d,.cd-unit--h{display:none}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:22px}
  .article-head-inner{padding:0 18px}
  .article-body{padding:0 18px}
  .article-body p{font-size:16.5px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .back-row{padding-bottom:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col{border-left:none;padding:0;border-top:1px solid rgba(255,255,255,.12);padding-top:24px}
  .footer-col:first-child{border-top:none;padding-top:0}
}
@media (max-width:520px){
  .crumb .current{max-width:200px}
  .article-meta{gap:10px}
}

/* roulang page: category1 */
:root{
  --brand-900:#093B3C;
  --brand-700:#0E4749;
  --brand-500:#17706C;
  --mint-400:#2E9E8F;
  --accent-500:#FF7A2F;
  --accent-100:#FFE8D9;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink-900:#1D2A29;
  --ink-600:#566462;
  --ink-400:#8A9694;
  --line:#E5E1D8;
  --ok:#2E9E8F;

  --c-bg:var(--paper);
  --c-surface:var(--card);
  --c-text:var(--ink-900);
  --c-text-2:var(--ink-600);
  --c-border:var(--line);
  --c-primary:var(--brand-700);
  --c-accent:var(--accent-500);

  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --radius-input:10px;

  --shadow-1:0 1px 2px rgba(29,42,41,.05),0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --ease:220ms cubic-bezier(.2,.7,.3,1);

  --sec-desktop:88px;
  --sec-tablet:64px;
  --sec-mobile:48px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease)}
h1,h2,h3,h4{line-height:1.35;letter-spacing:.02em;font-weight:700;margin:0}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px}
::selection{background:var(--accent-100);color:var(--brand-900)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 顶部倒计时条 ---------- */
.countdown-bar{
  background:var(--brand-900);
  color:rgba(255,255,255,.88);
  border-bottom:1px solid rgba(255,255,255,.14);
  font-size:13.5px;
  line-height:1.6;
}
.countdown-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:42px;
  padding-top:5px;
  padding-bottom:5px;
}
.cd-label{
  margin:0;
  display:flex;
  align-items:center;
  gap:8px;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
}
.cd-label::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--accent-500);
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
  flex:0 0 auto;
}
.cd-timer{display:flex;align-items:center;gap:8px}
.cd-unit{display:flex;align-items:center;gap:5px}
.cd-unit b{
  display:grid;
  place-items:center;
  width:32px;height:32px;
  border-radius:8px;
  background:rgba(255,255,255,.08);
  color:var(--accent-500);
  font-family:var(--font-num);
  font-size:14px;
  font-variant-numeric:tabular-nums;
}
.cd-unit i{font-style:normal;font-size:12px;color:rgba(255,255,255,.58)}
.cd-compact{display:none;font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--accent-500);font-size:14px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.97);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -20px rgba(14,71,73,.55);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand-700);
  display:grid;place-items:center;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--ink-900)}
.brand-sub{font-size:14.8px;font-weight:600;opacity:.6;color:var(--ink-900)}

.nav-links{display:flex;align-items:center;gap:28px;margin-left:6px}
.nav-links a{
  position:relative;
  font-size:15.5px;
  color:var(--ink-600);
  padding:4px 0;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a.is-active{color:var(--ink-900);font-weight:700}
.nav-links a.is-active::after{
  content:"";
  position:absolute;left:0;bottom:-2px;
  width:20px;height:2px;border-radius:2px;
  background:var(--brand-500);
}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;width:200px}
.nav-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);pointer-events:none}
.nav-search input{
  width:100%;height:38px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 16px 0 38px;
  font-size:14px;
  color:var(--ink-900);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.14);outline:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border:1.5px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff}
.btn-primary:hover{background:#E96A20;box-shadow:0 12px 26px -14px rgba(233,106,32,.95);transform:translateY(-1px)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:rgba(14,71,73,.08)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:var(--accent-100);color:#C9560F}
.btn-lg{height:48px;padding:0 28px;font-size:15.5px}

.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.menu-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--brand-700);
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.mobile-drawer{
  display:none;
  position:fixed;
  left:0;right:0;top:68px;bottom:0;
  background:var(--paper);
  padding:18px;
  overflow-y:auto;
  opacity:0;
  transform:translateY(-8px);
  pointer-events:none;
  transition:opacity var(--ease),transform var(--ease);
  z-index:55;
}
.mobile-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-search{position:relative;margin-bottom:16px}
.drawer-search input{
  width:100%;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 16px 0 40px;
  font-size:15px;
}
.drawer-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  padding:14px 4px;
  font-size:16px;
  color:var(--ink-600);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--ink-900);font-weight:700}
.drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-cta .btn{width:100%}

/* ---------- 面包屑与分类 Hero ---------- */
.crumb{
  font-size:13px;
  color:var(--ink-400);
  padding-top:20px;
  line-height:1.7;
}
.crumb a{color:var(--ink-400)}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{margin:0 6px;color:var(--line)}
.crumb .current{color:var(--ink-600);font-weight:600}

.page-hero{
  position:relative;
  padding:36px 0 56px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(9,59,60,.06) 1px,transparent 1px);
  background-size:18px 18px;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  background:var(--accent-100);
  color:#C9560F;
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.hero-grid h1{
  font-size:clamp(30px,4vw,46px);
  font-weight:800;
  margin-bottom:18px;
  color:var(--ink-900);
}
.hero-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--ink-600);
  margin-bottom:10px;
  max-width:38em;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  font-size:13px;
  color:var(--ink-600);
}
.hero-media{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,59,60,0) 42%,rgba(9,59,60,.72) 100%);
}
.hero-media-note{
  position:absolute;
  left:22px;right:22px;bottom:18px;
  z-index:2;
  color:#fff;
  font-size:13.5px;
  line-height:1.7;
}
.hero-media-note strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:2px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-desktop) 0}
.section-white{background:#fff}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{
  font-size:30px;
  font-weight:800;
  margin-bottom:14px;
}
.section-head p{
  font-size:16px;
  color:var(--ink-600);
  line-height:1.9;
  margin:0;
}
.section-eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--mint-400);
  font-weight:600;
  margin-bottom:10px;
  text-transform:uppercase;
}

/* ---------- 时间线 ---------- */
.timeline{list-style:none;position:relative;max-width:900px}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:14px;bottom:14px;
  width:2px;
  background:linear-gradient(180deg,rgba(46,158,143,.55),rgba(229,225,216,.9));
}
.tl-item{position:relative;padding-left:44px;margin-bottom:18px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;
  left:2px;top:24px;
  width:16px;height:16px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--mint-400);
  box-shadow:0 0 0 4px rgba(46,158,143,.12);
}
.tl-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.tl-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-3px);
  border-color:rgba(46,158,143,.4);
}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-date{
  font-family:var(--font-num);
  font-size:14px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  color:var(--brand-500);
  font-weight:600;
}
.tl-card h3{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--ink-900)}
.tl-card p{
  margin:0;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-600);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-btn);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag-open{background:rgba(46,158,143,.13);color:#17706C}
.tag-running{background:var(--accent-100);color:#C9560F}
.tag-soon{background:#EFEDE7;color:var(--ink-600)}

/* ---------- 留意事项 ---------- */
.notes-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px 40px;
  max-width:980px;
}
.note{
  padding-left:18px;
  border-left:3px solid var(--mint-400);
}
.note h3{font-size:17px;font-weight:600;margin-bottom:8px}
.note p{font-size:14.5px;line-height:1.85;color:var(--ink-600);margin:0}
.notes-foot{
  margin-top:36px;
  padding:20px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  font-size:14.5px;
  color:var(--ink-600);
  display:flex;
  align-items:center;
  gap:14px;
  max-width:980px;
  box-shadow:var(--shadow-1);
}
.notes-foot svg{flex:0 0 auto}

/* ---------- 底部 CTA ---------- */
.cta-strip{
  background:var(--brand-700);
  color:#fff;
  padding:56px 0;
  position:relative;
  overflow:hidden;
}
.cta-strip::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:18px 18px;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.45fr 1fr;
  gap:32px;
  align-items:center;
}
.cta-inner h2{font-size:26px;font-weight:700;margin-bottom:12px;color:#fff}
.cta-inner p{margin:0;font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);max-width:46em}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.4);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--accent-100);border-bottom-color:var(--accent-100)}
.link-arrow .arw{transition:transform var(--ease)}
.link-arrow:hover .arw{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  font-size:14px;
  padding-top:56px;
  padding-bottom:22px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.45fr 1fr 1fr 1.25fr;
  padding-bottom:36px;
}
.footer-col{padding:6px 28px;border-left:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08)}
.footer-brand .brand-main{color:#fff;font-size:17px;font-weight:800}
.footer-brand .brand-sub{color:#fff;font-size:14.8px;font-weight:600;opacity:.6}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-col p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  margin:0;
}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  line-height:2.2;
  color:rgba(255,255,255,.72);
  font-size:14px;
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:20px;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.56);
  line-height:1.8;
}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1279px){
  .nav-links{gap:20px}
  .nav-search{width:160px}
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px}
  .section{padding:var(--sec-tablet) 0}
  .page-hero{padding:28px 0 44px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{aspect-ratio:16/9}
  .hero-media-note{left:18px;right:18px;bottom:14px}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:28px}
  .footer-col{padding:6px 20px}
  .footer-col:nth-child(3){border-left:0;padding-left:0}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-actions{justify-content:flex-start}
  .section-head h2{font-size:26px}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px}
  .section{padding:var(--sec-mobile) 0}
  body{font-size:16.5px}

  .countdown-inner{gap:12px}
  .cd-label{font-size:12.5px}
  .cd-timer{display:none}
  .cd-compact{display:inline;font-size:13.5px}

  .nav-links{display:none}
  .nav-search{display:none}
  .header-actions .btn-outline{display:none}
  .header-actions .btn-primary{height:38px;padding:0 16px;font-size:14px}
  .menu-toggle{display:inline-flex}
  .mobile-drawer{display:block}

  .hero-grid h1{margin-bottom:14px}
  .hero-media{aspect-ratio:auto;height:200px}
  .hero-media-note{font-size:12.5px}
  .hero-media-note strong{font-size:14px}
  .chip-row{margin-top:18px}

  .section-head{margin-bottom:24px}
  .section-head h2{font-size:23px}
  .section-eyebrow{font-size:12px}

  .tl-item{padding-left:34px;margin-bottom:14px}
  .timeline::before{left:7px}
  .tl-dot{left:0;top:22px;width:14px;height:14px}
  .tl-card{padding:16px 18px}
  .tl-card h3{font-size:16px}

  .notes-grid{grid-template-columns:1fr;gap:20px}
  .notes-foot{flex-direction:column;align-items:flex-start;gap:10px}

  .cta-strip{padding:44px 0}
  .cta-inner h2{font-size:21px}
  .cta-actions{flex-direction:column;align-items:stretch;gap:14px}
  .cta-actions .btn{width:100%}
  .link-arrow{justify-content:center}

  .footer-grid{grid-template-columns:1fr;row-gap:0}
  .footer-col{border-left:0;padding:18px 0;border-top:1px solid rgba(255,255,255,.12)}
  .footer-col:first-child{border-top:0;padding-top:0}
  .footer-col:last-child{padding-bottom:0}
}
@media (max-width:520px){
  .hero-grid h1{font-size:30px}
  .section-head h2{font-size:21px}
  .brand-sub{font-size:13.6px}
  .brand-main{font-size:15.6px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand-900:#093B3C;
  --brand-700:#0E4749;
  --brand-500:#17706C;
  --mint-400:#2E9E8F;
  --accent-500:#FF7A2F;
  --accent-600:#E96A20;
  --accent-100:#FFE8D9;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink-900:#1D2A29;
  --ink-600:#566462;
  --ink-400:#8A9694;
  --line:#E5E1D8;
  --ok:#2E9E8F;

  --c-bg:var(--paper);
  --c-surface:var(--card);
  --c-text:var(--ink-900);
  --c-text-2:var(--ink-600);
  --c-border:var(--line);
  --c-primary:var(--brand-500);
  --c-accent:var(--accent-500);

  --radius-card:14px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(29,42,41,.05), 0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --ease:cubic-bezier(.2,.7,.3,1);

  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  font-weight:400;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.02em;font-weight:700;color:var(--ink-900)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:6px}
::selection{background:var(--accent-100);color:var(--brand-900)}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1440px){
  .container{max-width:1280px}
}

/* ============ 顶部倒计时条 ============ */
.topbar{
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.78);
  font-size:13px;
}
.topbar-inner{
  min-height:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.topbar-note{
  display:flex;
  align-items:center;
  gap:8px;
  line-height:1.6;
}
.topbar-note::before{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent-500);
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
  flex:none;
}
.countdown{display:flex;align-items:center;gap:10px}
.cd-cell{display:flex;align-items:center;gap:6px}
.cd-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;height:32px;
  border-radius:8px;
  background:rgba(255,255,255,.08);
  color:var(--accent-500);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:15px;
  font-weight:700;
}
.cd-label{color:rgba(255,255,255,.62);font-size:13px}
.cd-compact{display:none;font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--accent-500);font-weight:700}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:var(--card);
  border-bottom:1px solid transparent;
  transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -20px rgba(14,71,73,.45);
}
.header-inner{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:11px;
  background:var(--brand-700);
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{
  font-size:16px;
  font-weight:800;
  color:var(--brand-900);
  letter-spacing:.03em;
}
.brand-sub{
  font-size:14px;
  font-weight:600;
  color:rgba(9,59,60,.6);
  letter-spacing:.04em;
}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.6)}
.site-footer .brand-mark{background:rgba(255,255,255,.1)}

.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
  font-size:15px;
  color:var(--ink-600);
}
.nav-links a{
  position:relative;
  padding:6px 0;
  line-height:1.4;
  transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:-1px;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--brand-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand-900);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
}
.search-box svg{
  position:absolute;
  left:13px;
  top:50%;
  transform:translateY(-50%);
  pointer-events:none;
}
.search-box input{
  width:200px;
  height:40px;
  padding:0 16px 0 38px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--card);
  font-size:14px;
  color:var(--ink-900);
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.search-box input::placeholder{color:var(--ink-400)}
.search-box input:focus{
  outline:none;
  border-color:var(--mint-400);
  box-shadow:0 0 0 3px rgba(46,158,143,.16);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-pill);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}
.btn-primary{
  background:var(--accent-500);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(255,122,47,.85);
}
.btn-primary:hover{background:var(--accent-600);box-shadow:0 16px 30px -16px rgba(255,122,47,.9);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  border-color:var(--brand-700);
  color:var(--brand-700);
  background:transparent;
}
.btn-outline:hover{background:rgba(14,71,73,.08)}
.btn-ghost{
  border-color:rgba(255,255,255,.5);
  color:#fff;
  background:transparent;
}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  transition:gap .22s var(--ease), color .22s var(--ease);
}
.link-arrow:hover{gap:10px;color:var(--brand-500)}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:11px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--brand-700);
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(9,59,60,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s var(--ease);
  z-index:50;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:min(88vw,340px);
  height:100%;
  background:var(--card);
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  z-index:60;
  padding:20px 20px 28px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:18px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  font-size:20px;
  line-height:1;
  color:var(--brand-700);
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-600);
  min-height:44px;
  display:flex;
  align-items:center;
}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:24px 0 0;
  font-size:13px;
  color:var(--ink-400);
}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--ink-400)}
.breadcrumb .current{color:var(--ink-600)}

/* ============ 页面头部 ============ */
.page-head{
  padding:28px 0 88px;
  position:relative;
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(23,112,108,.14) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
}
.page-head-grid{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--accent-100);
  color:var(--accent-600);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.page-head h1{
  margin:20px 0 0;
  font-size:clamp(30px,4vw,46px);
  line-height:1.32;
  letter-spacing:.02em;
}
.page-head .lead{
  margin-top:20px;
  max-width:36em;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-600);
}
.page-head .lead + .lead{margin-top:12px}
.hero-actions{
  margin-top:28px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
}
.tag-row{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
  font-size:13px;
  color:var(--ink-600);
}
.hero-media{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(9,59,60,0) 42%, rgba(9,59,60,.62) 100%);
  pointer-events:none;
}
.hero-media-caption{
  position:absolute;
  left:20px;right:20px;bottom:16px;
  z-index:2;
  color:#fff;
  font-size:14px;
  line-height:1.7;
  text-shadow:0 1px 8px rgba(9,59,60,.5);
}
.stat-row{
  margin-top:28px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px 18px;
  box-shadow:var(--shadow-1);
}
.stat b{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:24px;
  color:var(--brand-500);
  line-height:1.2;
}
.stat span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--ink-600);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--paper{background:var(--paper)}
.section--tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,30px)}
.section-head p{
  margin-top:14px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
}
.section-head--row{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
}

/* ============ 步骤流程 ============ */
.steps{display:flex;flex-direction:column}
.step{
  position:relative;
  display:grid;
  grid-template-columns:96px minmax(0,1fr);
  gap:24px;
  padding-bottom:36px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";
  position:absolute;
  left:47px;
  top:70px;
  bottom:6px;
  border-left:2px dashed var(--line);
}
.step:last-child::before{display:none}
.step-index{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:48px;
  font-weight:700;
  line-height:1;
  color:var(--brand-500);
  padding-top:6px;
}
@supports (-webkit-text-stroke:1px #000){
  .step-index{color:transparent;-webkit-text-stroke:1.5px var(--brand-500)}
}
.step-body{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.step-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.step-body h3{font-size:20px;font-weight:700}
.step-body p{
  margin-top:12px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
}
.step-meta{
  margin-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:rgba(46,158,143,.1);
  color:var(--brand-500);
  font-size:13px;
}
.chip--accent{background:var(--accent-100);color:var(--accent-600)}

/* ============ 常见阻碍贴士（两栏） ============ */
.tips-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.tip-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease);
}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.tip-card h3{
  font-size:20px;
  display:flex;
  align-items:center;
  gap:10px;
}
.tip-card h3::before{
  content:"";
  width:10px;height:10px;
  border-radius:3px;
  background:var(--mint-400);
  flex:none;
}
.tip-card p{
  margin-top:12px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}
.tip-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.tip-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
}
.tip-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:2px;
  border-radius:2px;
  background:var(--brand-500);
}

/* ============ 核对清单 ============ */
.check-split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:start;
}
.check-side p{
  margin-top:14px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-600);
}
.check-side .btn{margin-top:24px}
.checklist{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
.check-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:18px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(46,158,143,.45)}
.check-item svg{flex:none;margin-top:3px}
.check-item strong{
  display:block;
  font-size:16px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.6;
}
.check-item span{
  display:block;
  margin-top:4px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-600);
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand-700);
  background-image:linear-gradient(90deg, rgba(9,59,60,.92) 0%, rgba(9,59,60,.7) 58%, rgba(9,59,60,.55) 100%), url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  padding:72px 0;
}
.cta-inner h2{
  color:#fff;
  font-size:clamp(20px,3vw,30px);
}
.cta-inner p{
  margin-top:14px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:40em;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  justify-content:flex-end;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  font-size:14px;
  line-height:1.85;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1.2fr;
  gap:0;
  padding:64px 0 40px;
}
.footer-col{padding:0 28px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  line-height:2.2;
  color:rgba(255,255,255,.72);
  transition:color .2s var(--ease);
  min-height:34px;
  display:inline-flex;
  align-items:center;
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (min-width:1024px) and (max-width:1279px){
  .nav-links{gap:20px}
  .search-box input{width:160px}
  .page-head-grid{grid-template-columns:6fr 6fr;gap:40px}
  .cta-inner{grid-template-columns:6fr 6fr}
}

@media (max-width:1023px){
  .nav-links{
    overflow-x:auto;
    white-space:nowrap;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
    max-width:52vw;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .search-box{display:none}
  .page-head{padding-bottom:64px}
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .hero-media img{aspect-ratio:16/9}
  .section{padding:64px 0}
  .tips-grid{grid-template-columns:1fr}
  .check-split{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:48px 0 32px}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(odd){padding-left:0;border-left:0}
  .footer-col:nth-child(even){padding-right:0}
  .footer-col:nth-child(3),
  .footer-col:nth-child(4){border-top:1px solid rgba(255,255,255,.12);padding-top:24px;margin-top:24px}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .nav-links,.header-actions .btn-outline,.header-actions .btn-primary{display:none}
  .nav-toggle{display:flex}
  .topbar-inner{min-height:40px;font-size:12.5px}
  .countdown .cd-cell{display:none}
  .countdown .cd-compact{display:inline-flex;align-items:center;gap:4px}
  .topbar-note{max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block;line-height:40px}
  .topbar-note::before{display:none}
  .page-head{padding:18px 0 48px}
  .page-head h1{font-size:clamp(26px,7vw,32px)}
  .hero-media img{aspect-ratio:auto;height:200px}
  .hero-actions{gap:12px}
  .hero-actions .btn,
  .hero-actions .link-arrow{width:100%;justify-content:center}
  .stat-row{grid-template-columns:1fr;gap:12px}
  .section{padding:48px 0}
  .section-head{margin-bottom:24px}
  .step{grid-template-columns:1fr;gap:12px;padding-bottom:28px}
  .step::before{display:none}
  .step-index{font-size:38px;padding-top:0}
  .step-body{padding:20px}
  .checklist{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 24px}
  .footer-col{padding:0;border-left:0}
  .footer-col + .footer-col{
    border-top:1px solid rgba(255,255,255,.12);
    margin-top:22px;
    padding-top:22px;
  }
  .footer-col:nth-child(3),
  .footer-col:nth-child(4){margin-top:22px;padding-top:22px}
}

/* roulang page: category3 */
:root{
  --brand-900:#093B3C;
  --brand-700:#0E4749;
  --brand-500:#17706C;
  --mint-400:#2E9E8F;
  --accent-500:#FF7A2F;
  --accent-600:#E96A20;
  --accent-100:#FFE8D9;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink-900:#1D2A29;
  --ink-600:#566462;
  --ink-400:#8A9694;
  --line:#E5E1D8;
  --ok:#2E9E8F;
  --c-bg:var(--paper);
  --c-surface:var(--card);
  --c-text:var(--ink-900);
  --c-text-2:var(--ink-600);
  --c-border:var(--line);
  --c-primary:var(--brand-700);
  --c-accent:var(--accent-500);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:999px;
  --shadow-1:0 1px 2px rgba(29,42,41,.05),0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Helvetica,Arial,sans-serif;
  --font-num:"DIN Alternate",Bahnschrift,ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-500);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--accent-500);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.02em;font-weight:700;color:var(--ink-900);}
p{margin:0 0 1.25em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1440px){:root{--container:1280px;}}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.82);
}
.topbar-inner{
  min-height:42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  line-height:1.6;
}
.topbar-text{display:flex;align-items:center;gap:8px;}
.topbar-text::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--accent-500);
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
  flex:none;
}
.countdown{display:flex;align-items:center;gap:8px;}
.cd-block{
  display:flex;align-items:center;gap:5px;
  background:rgba(255,255,255,.08);
  border-radius:8px;
  padding:2px 8px;
  min-height:28px;
}
.cd-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  color:var(--accent-500);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
}
.cd-label{font-size:11px;color:rgba(255,255,255,.6);}
.cd-compact{display:none;font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--accent-500);font-weight:700;font-size:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -20px rgba(14,71,73,.55);
}
.header-inner{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.02em;}
.brand-sub{font-size:14px;font-weight:500;color:var(--brand-900);opacity:.6;letter-spacing:.02em;}
.nav-links{
  display:flex;align-items:center;gap:28px;
  margin-left:8px;
  flex:1 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--ink-600);
  padding:23px 0;
  white-space:nowrap;
  font-weight:500;
  transition:color 220ms var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;
  height:2px;width:20px;margin:0 auto;
  background:var(--brand-500);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform 220ms var(--ease);
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand-900);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.search-box:focus-within{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.14);}
.search-box svg{flex:none;}
.search-box input{
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);width:100%;font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-400);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;}
.btn-primary:hover{background:var(--accent-600);color:#fff;box-shadow:0 10px 22px -12px rgba(233,106,32,.9);transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline:hover{background:rgba(23,112,108,.08);color:var(--brand-900);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-700);
}
.link-arrow:hover{color:var(--accent-500);gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 22px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer .drawer-search{margin:0 0 14px;}
.nav-drawer .drawer-search .search-box{width:100%;}
.nav-drawer nav{display:flex;flex-direction:column;}
.nav-drawer nav a{
  padding:13px 2px;font-size:16px;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.nav-drawer nav a.is-active{color:var(--brand-700);font-weight:700;}
.nav-drawer .drawer-actions{display:flex;gap:12px;margin-top:18px;}
.nav-drawer .drawer-actions .btn{flex:1;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  padding:14px 0;
  font-size:13px;color:var(--ink-400);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#BDB8AE;}
.breadcrumb .current{color:var(--ink-600);font-weight:600;}

/* ---------- 内页 Banner ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--brand-900);
  padding:72px 0 80px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,59,60,.96) 0%,rgba(9,59,60,.78) 46%,rgba(9,59,60,.42) 100%);
}
.page-hero-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--accent-500);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px;}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:20px;
}
.page-hero .hero-desc{
  color:rgba(255,255,255,.78);
  font-size:17px;
  line-height:1.9;
  max-width:640px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  border:1px solid rgba(255,255,255,.34);
  border-radius:var(--radius-btn);
  font-size:13px;color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.06);
}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:30px;flex-wrap:wrap;}
.page-hero .link-arrow{color:#fff;}
.page-hero .link-arrow:hover{color:var(--accent-500);}
.hero-visual{margin:0;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.6);
}
.hero-visual figcaption{
  margin-top:12px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--paper{background:var(--paper);}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:30px;font-weight:800;margin-bottom:14px;}
.section-head p{color:var(--ink-600);font-size:16.5px;}
.section-head--split{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;
}

/* ---------- 安全卡片（不等高） ---------- */
.sec-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.sec-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.sec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.sec-card--wide{grid-column:span 2;}
.sec-card--visual{padding:0;border:0;box-shadow:var(--shadow-1);overflow:hidden;grid-column:span 2;position:relative;}
.sec-card--visual img{width:100%;height:100%;min-height:260px;aspect-ratio:16/7;object-fit:cover;border-radius:0;transition:transform 400ms var(--ease);}
.sec-card--visual:hover img{transform:scale(1.03);}
.sec-card--visual .visual-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 26px;
  background:linear-gradient(to top,rgba(9,59,60,.92),rgba(9,59,60,0));
  color:#fff;
}
.sec-card--visual .visual-caption strong{display:block;font-size:17px;font-weight:700;margin-bottom:4px;}
.sec-card--visual .visual-caption span{font-size:13px;color:rgba(255,255,255,.78);}
.sec-badge{
  display:inline-flex;align-items:center;gap:6px;
  align-self:flex-start;
  height:26px;padding:0 12px;margin-bottom:16px;
  border-radius:var(--radius-btn);
  background:var(--accent-100);color:var(--accent-600);
  font-size:12.5px;font-weight:600;
}
.sec-badge--mint{background:rgba(46,158,143,.12);color:var(--brand-500);}
.sec-card h3{font-size:20px;font-weight:700;margin-bottom:12px;}
.sec-card p{font-size:15px;line-height:1.78;color:var(--ink-600);}
.sec-card ul.mini{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.sec-card ul.mini li{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--ink-600);line-height:1.75;
}
.sec-card ul.mini li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--mint-400);
}
.sec-card .card-figure{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  margin-bottom:18px;
}

/* ---------- 核对清单 ---------- */
.checklist-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:8px 0;
  box-shadow:var(--shadow-1);
}
.checklist{display:grid;grid-template-columns:1fr 1fr;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:20px 28px;
  border-bottom:1px solid var(--line);
}
.checklist .check-item:nth-child(odd){border-right:1px solid var(--line);}
.checklist .check-item:nth-last-child(-n+2){border-bottom:0;}
.check-icon{flex:none;margin-top:5px;}
.check-body strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;color:var(--ink-900);}
.check-body span{display:block;font-size:14px;line-height:1.75;color:var(--ink-600);}

/* ---------- 提示条与双栏文字块 ---------- */
.notice-strip{
  display:flex;align-items:center;gap:18px;
  background:var(--accent-100);
  border:1px solid #F6D5BB;
  border-radius:var(--radius-card);
  padding:20px 26px;
  margin-bottom:32px;
}
.notice-strip .notice-mark{
  flex:none;width:38px;height:38px;border-radius:12px;
  background:#fff;display:flex;align-items:center;justify-content:center;
  color:var(--accent-600);font-weight:800;font-size:18px;
  font-family:var(--font-num);
}
.notice-strip p{margin:0;font-size:15px;color:#7A4520;line-height:1.8;}
.tips-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.tip-block{
  border-left:3px solid var(--mint-400);
  background:#fff;
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:24px 26px;
  box-shadow:var(--shadow-1);
}
.tip-block h3{font-size:17px;font-weight:700;margin-bottom:10px;}
.tip-block p{font-size:15px;line-height:1.8;color:var(--ink-600);}
.tip-block ol{margin:10px 0 0;padding-left:20px;color:var(--ink-600);font-size:15px;line-height:1.85;}
.tip-block ol li{margin-bottom:6px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--brand-700);
  color:#fff;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.5;
  pointer-events:none;
}
.cta-band-inner{
  position:relative;z-index:2;
  padding:64px 0;
  display:grid;grid-template-columns:7fr 5fr;
  gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85;margin:0;}
.cta-actions{display:flex;align-items:center;gap:18px;justify-content:flex-end;flex-wrap:wrap;}
.cta-band .link-arrow{color:#fff;}
.cta-band .link-arrow:hover{color:var(--accent-500);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:36px;
}
.footer-col{padding-right:24px;border-right:1px solid rgba(255,255,255,.12);}
.footer-col:last-child{border-right:0;padding-right:0;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.04em;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:#fff;opacity:.6;font-size:13px;}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{color:rgba(255,255,255,.72);line-height:2.2;font-size:14px;}
.footer-links a:hover{color:var(--accent-500);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:20px;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:20px;}
  .search-box{width:160px;}
  .page-hero-inner{grid-template-columns:6fr 6fr;gap:40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .page-hero{padding:56px 0 64px;}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-visual img{aspect-ratio:16/7;}
  .header-inner{flex-wrap:nowrap;}
  .nav-links{gap:20px;}
  .sec-grid{grid-template-columns:1fr 1fr;}
  .sec-card--wide,.sec-card--visual{grid-column:span 2;}
  .checklist{grid-template-columns:1fr;}
  .checklist .check-item:nth-child(odd){border-right:0;}
  .checklist .check-item:nth-last-child(-n+2){border-bottom:1px solid var(--line);}
  .checklist .check-item:last-child{border-bottom:0;}
  .tips-grid{grid-template-columns:1fr;}
  .cta-band-inner{grid-template-columns:1fr;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col:nth-child(2){border-right:0;}
  .footer-col{padding-right:0;border-right:0;}
}
@media (max-width:767px){
  body{font-size:16.5px;}
  .container{padding:0 18px;}
  .topbar-text{font-size:12.5px;}
  .cd-block{display:none;}
  .cd-compact{display:inline;}
  .nav-links{display:none;}
  .search-box{display:none;}
  .header-actions .btn-outline,.header-actions .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .section-head h2{font-size:24px;}
  .page-hero{padding:40px 0 48px;}
  .page-hero .hero-desc{font-size:16px;}
  .hero-visual img{aspect-ratio:16/9;height:200px;object-fit:cover;}
  .hero-actions{gap:16px;}
  .hero-actions .btn{width:100%;}
  .sec-grid{grid-template-columns:1fr;}
  .sec-card--wide,.sec-card--visual{grid-column:span 1;}
  .sec-card--visual img{aspect-ratio:16/9;min-height:0;}
  .check-item{padding:18px 20px;}
  .notice-strip{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-band-inner{padding:48px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand .brand-sub{font-size:12.5px;}
}

/* roulang page: category4 */
:root{
  --brand-900:#093B3C;
  --brand-700:#0E4749;
  --brand-500:#17706C;
  --mint-400:#2E9E8F;
  --accent-500:#FF7A2F;
  --accent-600:#E96A20;
  --accent-100:#FFE8D9;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --ink-900:#1D2A29;
  --ink-600:#566462;
  --ink-400:#8A9694;
  --line:#E5E1D8;
  --ok:#2E9E8F;

  --c-bg:var(--paper);
  --c-surface:var(--card);
  --c-text:var(--ink-900);
  --c-text-2:var(--ink-600);
  --c-border:var(--line);
  --c-primary:var(--brand-700);
  --c-accent:var(--accent-500);

  --radius-card:14px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(29,42,41,.05),0 12px 28px -18px rgba(14,71,73,.35);
  --shadow-2:0 18px 36px -20px rgba(14,71,73,.42);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--accent-600)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.02em;font-weight:800;color:var(--ink-900)}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 顶部倒计时条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);border-bottom:1px solid rgba(255,255,255,.12)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:42px;padding:6px 32px;max-width:1200px;margin:0 auto}
@media (min-width:1440px){.topbar-inner{max-width:1280px}}
.topbar-text{font-size:13.5px;display:flex;align-items:center;gap:10px;letter-spacing:.02em}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-500);display:inline-block}
.topbar-timer{display:flex;align-items:center;gap:10px;font-family:var(--font-num);font-variant-numeric:tabular-nums}
.timer-unit{display:flex;align-items:center;gap:6px;font-size:12.5px;color:rgba(255,255,255,.66)}
.timer-box{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.08);color:var(--accent-500);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.timer-compact{display:none;font-size:13.5px;color:var(--accent-500);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid transparent;transition:box-shadow var(--ease),border-color var(--ease)}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(14,71,73,.6)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--brand-700);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-main{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.02em}
.brand-sub{font-size:14.8px;font-weight:700;color:var(--brand-900);opacity:.6;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-links a{position:relative;font-size:15.5px;color:var(--ink-600);font-weight:500;padding:6px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-2px;width:0;height:2px;background:var(--brand-500);border-radius:2px;transition:width var(--ease)}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:var(--brand-900);font-weight:700}
.nav-links a.is-active::after{width:20px}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.nav-search{position:relative;width:200px}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.5}
.nav-search input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;padding:0 16px 0 38px;font-size:14px;color:var(--ink-900);transition:border-color var(--ease),box-shadow var(--ease)}
.nav-search input::placeholder{color:var(--ink-400)}
.nav-search input:focus{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.14);outline:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;font-size:15px;font-weight:700;padding:0 20px;height:44px;letter-spacing:.02em;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(233,106,32,.9)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 16px 28px -16px rgba(233,106,32,.95)}
.btn-outline{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-700)}
.btn-outline:hover{background:rgba(14,71,73,.08);color:var(--brand-700)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-block{width:100%}
.btn-sm{height:40px;font-size:14px;padding:0 16px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:18px 0 24px}
.mobile-drawer.is-open{display:block}
.drawer-search{position:relative;margin:0 0 16px}
.drawer-search input{width:100%;height:44px;border-radius:999px;border:1px solid var(--line);padding:0 16px;background:#fff}
.drawer-links{display:flex;flex-direction:column;margin-bottom:16px}
.drawer-links a{padding:12px 2px;font-size:16px;color:var(--ink-600);border-bottom:1px solid var(--line);min-height:44px;display:flex;align-items:center}
.drawer-links a.is-active{color:var(--brand-900);font-weight:700}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-paper{background:var(--paper)}
.section-head{max-width:820px;margin-bottom:32px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-500);background:rgba(23,112,108,.08);border-radius:999px;padding:4px 12px;margin-bottom:14px;letter-spacing:.04em}
.section-title{font-size:clamp(24px,2.6vw,30px);margin-bottom:14px}
.section-desc{color:var(--ink-600);font-size:16.5px;line-height:1.85;max-width:760px}
.muted{color:var(--ink-400);font-size:13.5px;line-height:1.7}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 分类页头 ---------- */
.crumb{font-size:13px;color:var(--ink-400);padding-top:26px}
.crumb a{color:var(--ink-400)}
.crumb a:hover{color:var(--brand-700)}
.crumb span.sep{margin:0 8px}
.page-hero{padding:22px 0 64px}
.page-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.page-hero h1{font-size:clamp(30px,4vw,42px);margin:16px 0 18px}
.page-hero-lead{font-size:16.5px;color:var(--ink-600);line-height:1.9;max-width:640px}
.page-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--brand-700);border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;min-height:36px;transition:border-color var(--ease),color var(--ease),background-color var(--ease),transform var(--ease)}
.pill:hover{border-color:var(--brand-500);color:var(--brand-900);background:rgba(23,112,108,.06);transform:translateY(-2px)}
.page-hero-figure{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-1)}
.page-hero-figure img{width:100%;height:100%;object-fit:cover}
.page-hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(9,59,60,.10) 0%,rgba(9,59,60,.72) 100%)}
.figure-note{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff}
.figure-note strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px}
.figure-note span{font-size:13px;color:rgba(255,255,255,.8)}

/* ---------- 锚点胶囊组 ---------- */
.anchor-bar{display:flex;flex-wrap:wrap;gap:12px;padding:0 0 8px}
.anchor-bar .pill{background:#fff;border-color:var(--line)}
.anchor-bar .pill strong{font-family:var(--font-num);color:var(--accent-500);font-size:13px}

/* ---------- 问题索引 ---------- */
.index-rail{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--line)}
.index-item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.idx-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--mint-400);flex:0 0 auto;line-height:1.2;min-width:44px;padding-top:2px}
.index-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.index-item p{font-size:14.5px;color:var(--ink-600);line-height:1.75;margin:0}

/* ---------- FAQ ---------- */
.faq-group{max-width:860px;margin:0 auto}
.faq-group-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.faq-group-head h2{font-size:24px}
.faq-group-head .group-tag{font-size:13px;font-weight:700;color:var(--brand-500);background:rgba(23,112,108,.08);border-radius:999px;padding:4px 12px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item.is-open{border-color:rgba(46,158,143,.5);box-shadow:var(--shadow-1)}
.faq-q{margin:0;font-size:17px;font-weight:700}
.faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:transparent;border:none;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);letter-spacing:.01em;min-height:44px}
.faq-btn:hover{color:var(--brand-700)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s cubic-bezier(.2,.7,.3,1)}
.faq-item.is-open .faq-a{max-height:640px}
.faq-a-inner{padding:0 22px 22px 38px;border-top:1px solid var(--line);margin-top:0;padding-top:16px}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0 0 10px}
.faq-a-inner p:last-child{margin-bottom:0}
.faq-a-inner .qa-tag{font-weight:700;color:var(--ink-900)}

/* ---------- 仍未解决引导条 ---------- */
.help-bar{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 30px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow-1)}
.help-bar h2{font-size:20px;margin-bottom:8px}
.help-bar p{font-size:15px;color:var(--ink-600);margin:0}
.help-bar-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand-700)}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- CTA 表单 ---------- */
.cta-band{background:var(--brand-700);color:#fff;padding:88px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.12}
.cta-band .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.85)}
.cta-points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent-500);margin-top:9px;flex:0 0 auto}
.cta-form{background:#fff;border-radius:14px;padding:28px;box-shadow:0 24px 48px -30px rgba(0,0,0,.6)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field-wide{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--radius-input);padding:12px 14px;background:#fff;color:var(--ink-900);transition:border-color var(--ease),box-shadow var(--ease)}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.field input:focus,.field textarea:focus{border-color:var(--mint-400);box-shadow:0 0 0 3px rgba(46,158,143,.14);outline:none}
.form-foot{display:flex;align-items:center;gap:16px;margin-top:20px;flex-wrap:wrap}
.form-tip{font-size:12px;color:var(--ink-400);line-height:1.7;margin:0}
.form-msg{font-size:13.5px;color:var(--brand-500);font-weight:600;margin:12px 0 0;display:none}
.form-msg.is-on{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.footer-col:first-child{border-left:none;padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.brand-mark{background:rgba(255,255,255,.10)}
.footer-brand .brand-main,.footer-brand .brand-sub{color:#fff}
.footer-brand .brand-sub{opacity:.6}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.04em}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72)}
.footer-links{display:flex;flex-direction:column}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;line-height:2.2}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);text-align:center;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .header-inner{gap:20px}
  .nav-links{gap:20px}
  .nav-search{width:160px}
  .page-hero-grid{grid-template-columns:6fr 6fr;gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-search{display:none}
  .header-actions .btn-outline,.header-actions .btn-primary{display:none}
  .nav-toggle{display:flex}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .section{padding:64px 0}
  .cta-band{padding:64px 0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col:nth-child(3){border-left:none;padding-left:0}
  .index-rail{grid-template-columns:1fr}
  .help-bar{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .container{padding:0 18px}
  .topbar-timer{display:none}
  .timer-compact{display:inline}
  .topbar-inner{padding:6px 18px}
  .topbar-text{font-size:12.8px}
  .section{padding:48px 0}
  .cta-band{padding:48px 0}
  .page-hero{padding:16px 0 48px}
  .page-hero-figure{aspect-ratio:16/9;height:200px}
  .page-hero-figure img{height:200px}
  .page-hero h1{font-size:30px}
  .anchor-bar{gap:8px}
  .faq-btn{padding:16px 16px;font-size:16px}
  .faq-a-inner{padding:14px 16px 18px 26px}
  .form-grid{grid-template-columns:1fr}
  .cta-form{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:32px 0}
  .footer-col{border-left:none;padding:0}
  .help-bar{padding:22px 18px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .help-bar-actions{width:100%;flex-direction:column;align-items:stretch;gap:10px}
  .help-bar-actions .btn{width:100%}
}
@media (max-width:519px){
  .index-item{gap:14px}
  .idx-num{font-size:19px;min-width:36px}
  .faq-group-head{flex-wrap:wrap}
}