/* roulang page: index */
:root{
    --brand-900:#0A2A24; --brand-700:#134E42; --brand-500:#1E7261; --brand-200:#BFDCD4;
    --lime-400:#B9F227; --lime-300:#CDFA5E; --amber-500:#E8A33D;
    --ink-900:#111614; --ink-600:#46504C; --ink-400:#8A938E;
    --paper:#F7F5F0; --surface:#FFFFFF; --surface-2:#EFEBE2; --line:#E0DACF;
    --r-card:16px; --r-img:12px; --r-input:10px;
    --sh-1:0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
    --sh-2:0 18px 44px -18px rgba(10,42,36,.26);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;line-height:1.8;color:var(--ink-900);
    background-color:var(--paper);
    background-image:radial-gradient(rgba(10,42,36,.035) 1px, transparent 1px);
    background-size:22px 22px;
  }
  body.is-locked{overflow:hidden}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select{font:inherit;color:inherit}
  h1,h2,h3,h4,p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  @media (min-width:1280px){.container{padding:0}}

  .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;letter-spacing:.01em}

  /* ---------- 顶部倒计时条 ---------- */
  .ticker{background:var(--brand-900);color:#fff;min-height:38px;display:flex;align-items:center}
  .ticker-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:6px 0;font-size:13px}
  .ticker-left{display:flex;align-items:center;gap:10px;min-width:0}
  .ticker-name{color:rgba(255,255,255,.86);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--lime-400);color:var(--lime-400);border-radius:999px;padding:2px 10px;font-size:12px;line-height:1.6;white-space:nowrap}
  .pill .dot{width:6px;height:6px;border-radius:50%;background:var(--lime-400);animation:pulse 1.8s infinite}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
  .ticker-time{display:flex;align-items:center;gap:2px;color:var(--lime-400);font-size:13px}
  .ticker-time .sep{color:rgba(255,255,255,.35);margin:0 2px}
  .ticker-hint{color:rgba(255,255,255,.6);font-size:12px;margin-left:10px}
  @media (max-width:767px){.ticker-hint{display:none}.ticker-name{max-width:8em}}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.92);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .3s var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 12px 30px -20px rgba(10,42,36,.55)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px}
  .logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--ink-900);white-space:nowrap}
  .logo-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-900);color:var(--lime-400);display:grid;place-items:center;font-size:13px;font-weight:800;font-family:ui-monospace,monospace}
  .logo-tag{border:1px solid var(--brand-500);color:var(--brand-700);border-radius:999px;font-size:11px;padding:1px 8px;font-weight:600;letter-spacing:.04em}
  .nav-menu{display:none;align-items:center;gap:26px}
  .nav-link{position:relative;font-size:15px;color:var(--ink-600);padding:4px 0;transition:color .2s var(--ease)}
  .nav-link::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--lime-400);transition:width .28s var(--ease)}
  .nav-link:hover{color:var(--ink-900)}
  .nav-link:hover::after{width:100%}
  .nav-link.is-active{color:var(--ink-900);font-weight:700}
  .nav-link.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-right:7px;vertical-align:middle}
  .nav-right{display:flex;align-items:center;gap:12px}
  .nav-cta{display:none}
  .burger{width:42px;height:42px;border:1px solid var(--line);background:var(--surface);border-radius:12px;display:grid;place-items:center;cursor:pointer;gap:4px}
  .burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
  .burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .burger[aria-expanded="true"] span:nth-child(2){opacity:0}
  .burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  @media (min-width:1024px){
    .nav-menu{display:flex}
    .nav-cta{display:inline-flex}
    .burger{display:none}
    .nav-inner{height:68px}
  }
  .drawer{
    position:fixed;inset:0;z-index:55;background:var(--paper);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease),transform .3s var(--ease);
    padding:86px 20px 100px;overflow:auto;
  }
  .drawer.is-open{opacity:1;transform:none;pointer-events:auto}
  .drawer a.d-item{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-900)}
  .drawer a.d-item span.arrow{color:var(--ink-400)}
  .drawer-foot{position:fixed;left:0;right:0;bottom:0;padding:14px 20px;background:var(--paper);border-top:1px solid var(--line)}
  @media (min-width:1024px){.drawer{display:none}}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 26px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:background .25s var(--ease),color .25s var(--ease),transform .2s var(--ease),box-shadow .25s var(--ease)}
  .btn-primary{background:var(--brand-700);color:#fff}
  .btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-acid{background:var(--lime-400);color:var(--ink-900)}
  .btn-acid:hover{background:var(--lime-300);transform:scale(1.02)}
  .btn-acid:active{transform:scale(.99)}
  .btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
  .btn-ghost:hover{background:rgba(19,78,66,.08)}
  .btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
  .btn-ghost-light:hover{background:rgba(255,255,255,.1)}
  .btn-sm{padding:9px 18px;font-size:14px}
  .link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid rgba(19,78,66,.3);padding-bottom:2px;transition:color .2s var(--ease),gap .2s var(--ease)}
  .link-more:hover{color:var(--brand-900);gap:10px}

  /* ---------- 通用徽章 / 标签 ---------- */
  .badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:600;padding:3px 11px;line-height:1.7;white-space:nowrap}
  .badge-line{border:1px solid var(--brand-200);color:var(--brand-700);background:rgba(191,220,212,.18)}
  .badge-acid{border:1px solid var(--lime-400);color:var(--brand-900);background:rgba(185,242,39,.22)}
  .badge-solid{background:var(--brand-900);color:var(--lime-400);border:1px solid var(--brand-900)}
  .badge-stamp{border:1px solid var(--brand-900);color:var(--brand-900);background:var(--lime-400);transform:rotate(-2deg);font-weight:800;letter-spacing:.04em}

  /* ---------- 板块 ---------- */
  .sec{padding:60px 0}
  @media (min-width:768px){.sec{padding:76px 0}}
  @media (min-width:1024px){.sec{padding:96px 0}}
  .sec-alt{background:var(--surface-2)}
  .sec-dark{background:var(--brand-900);color:#fff}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
  .eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand-500);text-transform:uppercase}
  .sec-title{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.22;letter-spacing:-.02em;font-weight:800;margin-top:10px}
  .sec-sub{color:var(--ink-600);font-size:15px;margin-top:12px;max-width:58ch}
  .sec-dark .sec-sub{color:rgba(255,255,255,.7)}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;padding:48px 0 64px}
  @media (min-width:1024px){.hero{padding:64px 0 92px}}
  .hero::after{content:"";position:absolute;right:-140px;bottom:-160px;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle, rgba(185,242,39,.08), rgba(185,242,39,0) 70%);pointer-events:none}
  .hero-grid{display:grid;gap:44px;align-items:center;position:relative;z-index:1}
  @media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px}}
  .hero-eyebrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
  .hero h1{font-size:clamp(1.9rem,4.2vw,3.25rem);line-height:1.18;letter-spacing:-.02em;font-weight:800}
  .hero h1 em{font-style:normal;color:var(--brand-700);background:linear-gradient(transparent 62%, rgba(185,242,39,.55) 0);padding:0 2px}
  .hero-sub{color:var(--ink-600);font-size:16px;margin-top:16px;max-width:44ch}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line)}
  .stat-num{font-size:clamp(1.25rem,2.4vw,1.7rem);font-weight:800;color:var(--brand-900)}
  .stat-label{font-size:13px;color:var(--ink-400);margin-top:2px}
  .hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--surface-2)}
  .hero-media img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
  .hero-media .badge-stamp{position:absolute;left:16px;top:16px}
  .hero-media figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:13px;color:#fff;background:linear-gradient(to top, rgba(10,42,36,.82), rgba(10,42,36,0))}

  /* ---------- 卖点编号条 ---------- */
  .point-list{border-top:1px solid var(--line)}
  .point-row{display:grid;grid-template-columns:56px 1fr;gap:8px 18px;align-items:start;
    padding:22px 16px;border-bottom:1px solid var(--line);transition:background .25s var(--ease),padding-left .25s var(--ease)}
  .point-row:hover{background:var(--surface-2);padding-left:22px}
  .point-no{font-family:ui-monospace,monospace;font-size:14px;font-weight:700;color:var(--brand-500);letter-spacing:.06em;padding-top:3px}
  .point-row h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
  .point-row p{color:var(--ink-600);font-size:14.5px;margin-top:6px;max-width:70ch}
  @media (min-width:768px){.point-row{grid-template-columns:80px 1fr;padding:26px 20px}}

  /* ---------- 图墙 ---------- */
  .gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
  .gallery figure{position:relative;overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);background:var(--surface-2);margin:0}
  .gallery img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
  .gallery figure:hover img{transform:scale(1.03)}
  .gallery .g-1{grid-column:span 2}
  .gallery .g-1 img{aspect-ratio:16/10}
  .gallery .g-2 img,.gallery .g-3 img,.gallery .g-4 img,.gallery .g-5 img,.gallery .g-6 img{aspect-ratio:1/1}
  .gallery .g-cap{position:absolute;left:12px;bottom:12px;background:var(--brand-900);color:var(--lime-400);
    font-size:12px;padding:3px 10px;border-radius:999px;opacity:0;transform:translateY(6px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
  .gallery figure:hover .g-cap{opacity:1;transform:none}
  @media (min-width:1024px){
    .gallery{grid-template-columns:repeat(6,1fr);gap:16px}
    .gallery .g-1{grid-column:span 3;grid-row:span 2}
    .gallery .g-1 img{aspect-ratio:auto;height:100%;min-height:320px}
    .gallery .g-2,.gallery .g-3{grid-column:span 3}
    .gallery .g-2 img,.gallery .g-3 img{aspect-ratio:3/1.06}
    .gallery .g-4,.gallery .g-5,.gallery .g-6{grid-column:span 2}
    .gallery .g-4 img,.gallery .g-5 img,.gallery .g-6 img{aspect-ratio:4/3}
  }

  /* ---------- 资讯列表 ---------- */
  .news-feature{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);overflow:hidden;box-shadow:var(--sh-1);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
  .news-feature:hover{transform:translateY(-4px);border-color:var(--brand-500);box-shadow:var(--sh-2)}
  .news-feature-link{display:grid;grid-template-columns:1fr}
  @media (min-width:900px){.news-feature-link{grid-template-columns:5fr 7fr}}
  .news-feature-media{background:var(--surface-2);overflow:hidden}
  .news-feature-media img{width:100%;height:100%;min-height:230px;object-fit:cover}
  .news-feature-body{padding:24px}
  .news-feature-body h3{font-size:clamp(1.1rem,1.8vw,1.4rem);font-weight:800;line-height:1.45;margin-top:14px;letter-spacing:-.01em;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-feature-body p{color:var(--ink-600);font-size:14.5px;margin-top:12px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-feature-body .meta{margin-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400)}
  .news-list{margin-top:14px;border-top:1px solid var(--line)}
  .news-row{display:flex;flex-direction:column;gap:10px;padding:18px 14px;border-bottom:1px solid var(--line);
    transition:background .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease)}
  .news-row:hover{background:var(--surface);transform:translateX(4px);border-bottom-color:var(--brand-500)}
  .news-row-main h4{font-size:16px;font-weight:700;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-row-main p{color:var(--ink-600);font-size:14px;margin-top:6px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-row-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--ink-400);font-size:12.5px}
  .news-row-meta .arrow{color:var(--brand-500);font-weight:700}
  @media (min-width:768px){
    .news-row{flex-direction:row;align-items:center;justify-content:space-between;gap:24px;padding:20px 18px}
    .news-row-main{flex:1;min-width:0}
    .news-row-meta{flex:0 0 auto;justify-content:flex-end}
  }
  .empty-state{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);
    padding:46px 24px;text-align:center;color:var(--ink-600);font-size:15px}

  /* ---------- 步骤 ---------- */
  .steps{display:grid;gap:26px;counter-reset:st}
  @media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:20px}}
  .step{position:relative;padding-top:26px;border-top:1px solid var(--line)}
  .step::before{content:"";position:absolute;left:0;top:-5px;width:10px;height:10px;border-radius:50%;background:var(--lime-400);box-shadow:0 0 0 4px rgba(185,242,39,.22)}
  .step-no{font-family:ui-monospace,monospace;font-size:13px;color:var(--brand-500);font-weight:700;letter-spacing:.08em}
  .step h3{font-size:17px;font-weight:700;margin-top:8px}
  .step p{color:var(--ink-600);font-size:14.5px;margin-top:8px}

  /* ---------- 反馈 ---------- */
  .feedback{display:grid;gap:18px}
  @media (min-width:1024px){.feedback{grid-template-columns:5fr 7fr;gap:24px}}
  .fb-lead{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);overflow:hidden;box-shadow:var(--sh-1)}
  .fb-lead img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .fb-lead-body{padding:24px}
  .fb-score{font-size:clamp(2rem,4vw,2.6rem);font-weight:800;color:var(--brand-900);letter-spacing:-.02em}
  .fb-lead-body p{color:var(--ink-600);font-size:14.5px;margin-top:10px}
  .fb-lines{display:grid;gap:14px;align-content:start}
  .fb-card{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);padding:22px;box-shadow:var(--sh-1);transition:transform .3s var(--ease),border-color .3s var(--ease)}
  .fb-card:hover{transform:translateY(-4px);border-color:var(--brand-500)}
  .fb-card blockquote{margin:0;font-size:15px;color:var(--ink-900)}
  .fb-card .who{margin-top:14px;font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:8px}
  .fb-card .who i{width:6px;height:6px;border-radius:50%;background:var(--brand-500);display:inline-block}

  /* ---------- 表单 CTA ---------- */
  .cta-wrap{background:var(--brand-900);color:#fff;border-radius:var(--r-card);padding:32px;display:grid;gap:32px;position:relative;overflow:hidden}
  @media (min-width:768px){.cta-wrap{padding:44px}}
  @media (min-width:1024px){.cta-wrap{grid-template-columns:6fr 6fr;gap:48px;padding:56px}}
  .cta-wrap::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
    background:radial-gradient(circle, rgba(185,242,39,.14), rgba(185,242,39,0) 70%)}
  .cta-wrap h2{font-size:clamp(1.5rem,2.8vw,2.2rem);line-height:1.25;font-weight:800;letter-spacing:-.02em;position:relative}
  .cta-wrap h2 span{color:var(--lime-400)}
  .cta-benefits{margin-top:24px;display:grid;gap:12px;position:relative}
  .cta-benefits li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86)}
  .cta-benefits li b{color:var(--lime-400);font-weight:800;line-height:1.6}
  .form-card{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:24px}
  .field{margin-bottom:16px}
  .field label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:7px}
  .field input,.field select{width:100%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
    border-radius:var(--r-input);padding:12px 14px;color:#fff;font-size:15px;transition:border-color .25s var(--ease),background .25s var(--ease)}
  .field input::placeholder{color:rgba(255,255,255,.42)}
  .field input:focus,.field select:focus{outline:none;border-color:var(--lime-400);background:rgba(255,255,255,.12)}
  .field select option{color:var(--ink-900)}
  .form-note{font-size:12.5px;color:rgba(255,255,255,.55);margin-top:12px}
  .form-alert{display:none;font-size:13px;color:var(--amber-500);border-left:3px solid var(--amber-500);padding-left:10px;margin-bottom:14px}
  .form-alert.is-show{display:block}
  .form-ok{display:none;font-size:13.5px;color:var(--lime-400);border-left:3px solid var(--lime-400);padding-left:10px;margin-bottom:14px}
  .form-ok.is-show{display:block}

  /* ---------- FAQ ---------- */
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 4px;text-align:left;cursor:pointer;font-size:16px;font-weight:700;color:var(--ink-900);transition:color .2s var(--ease)}
  .faq-q:hover{color:var(--brand-700)}
  .faq-icon{flex:0 0 auto;width:26px;height:26px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;
    font-size:15px;font-weight:700;color:var(--brand-700);transition:transform .32s var(--ease),background .32s var(--ease),border-color .32s var(--ease)}
  .faq-q[aria-expanded="true"] .faq-icon{background:var(--lime-400);border-color:var(--lime-400);transform:rotate(45deg);color:var(--ink-900)}
  .faq-a{overflow:hidden;max-height:0;transition:max-height .32s var(--ease)}
  .faq-a-inner{padding:0 4px 22px;color:var(--ink-600);font-size:15px;max-width:78ch}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:0;border-top:1px solid rgba(255,255,255,.08)}
  .footer-grid{display:grid;gap:34px;padding:56px 0 40px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding:68px 0 48px}}
  .footer-grid h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.01em}
  .footer-links li{margin-bottom:10px}
  .footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
  .footer-links a:hover{color:var(--lime-400);transform:translateX(2px)}
  .footer-brand p{font-size:14px;margin-top:14px;max-width:34ch;color:rgba(255,255,255,.66)}
  .footer-brand .logo{color:#fff}
  .footer-brand .logo-mark{background:var(--lime-400);color:var(--brand-900)}
  .footer-brand .logo-tag{border-color:rgba(185,242,39,.6);color:var(--lime-400)}
  .footer-contact li{font-size:14px;margin-bottom:10px;display:flex;gap:8px}
  .footer-contact li b{color:rgba(255,255,255,.45);font-weight:500;flex:0 0 auto}
  .sub-form{margin-top:16px;display:flex;gap:8px}
  .sub-form input{flex:1;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
    border-radius:var(--r-input);padding:11px 13px;color:#fff;font-size:14px}
  .sub-form input:focus{outline:none;border-color:var(--lime-400)}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
    align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
  .to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
  .to-top:hover{color:var(--lime-400)}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.is-visible{opacity:1;transform:none}
  @media (prefers-reduced-motion: reduce){
    *{animation:none!important;transition:none!important}
    .reveal{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }

/* roulang page: article */
:root{
  --brand-900:#0A2A24;
  --brand-700:#134E42;
  --brand-500:#1E7261;
  --brand-200:#BFDCD4;
  --lime-400:#B9F227;
  --lime-300:#CDFA5E;
  --amber-500:#E8A33D;
  --ink-900:#111614;
  --ink-600:#46504C;
  --ink-400:#8A938E;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFEBE2;
  --line:#E0DACF;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
  --shadow-2:0 18px 44px -18px rgba(10,42,36,.26);
  --mono:ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0}}

/* ---------- 倒计时条 ---------- */
.ticker{background:var(--brand-900);color:#fff;font-size:13px}
.ticker-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px;padding:6px 20px}
@media (min-width:768px){.ticker-inner{padding:6px 32px}}
@media (min-width:1280px){.ticker-inner{padding:6px 0}}
.ticker-left{display:flex;align-items:center;gap:10px;min-width:0}
.ticker-name{color:rgba(255,255,255,.85);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:.01em}
.ticker-right{display:flex;align-items:center;gap:8px;white-space:nowrap}
.ticker-label{color:rgba(255,255,255,.55);font-size:12px}
.ticker-clock{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--lime-400);letter-spacing:.06em;font-weight:600}
.ticker-clock i{font-style:normal;color:rgba(255,255,255,.35);padding:0 1px}
.ticker-clock .tick{animation:tickFlash .25s ease}
@keyframes tickFlash{0%{transform:translateY(-3px);color:#fff}100%{transform:translateY(0);color:var(--lime-400)}}
@media (max-width:640px){.ticker-name{display:none}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(10,42,36,.45)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;letter-spacing:-.02em;font-size:18px;color:var(--brand-900)}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--brand-700);color:var(--lime-400);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:0;
}
.logo-tag{
  font-size:11px;font-weight:600;letter-spacing:.08em;
  border:1px solid var(--brand-200);color:var(--brand-700);
  border-radius:999px;padding:2px 7px;background:rgba(191,220,212,.4);
}
.nav-menu{display:none;align-items:center;gap:26px}
@media (min-width:1024px){.nav-menu{display:flex}}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-600);padding:6px 0;
  transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--lime-400);
  transition:width .28s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--brand-900)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand-900);font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--lime-400);
}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  width:40px;height:40px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color .25s ease,background .25s ease;
}
.nav-toggle:hover{border-color:var(--brand-500)}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .28s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){.nav-toggle{display:none}}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:60;background:var(--paper);
  display:flex;flex-direction:column;padding:22px 20px 26px;
  visibility:hidden;opacity:0;transform:translateY(-10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.drawer.is-open{visibility:visible;opacity:1;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  cursor:pointer;font-size:18px;line-height:1;color:var(--brand-900);
}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-900);
}
.drawer a.drawer-link.is-active{color:var(--brand-700);font-weight:700}
.drawer a.drawer-link span{color:var(--ink-400);font-family:var(--mono);font-size:12px}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-weight:700;font-size:15px;padding:14px 28px;line-height:1.2;
  transition:background .25s ease,color .25s ease,transform .2s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-acid{background:var(--lime-400);color:var(--ink-900)}
.btn-acid:hover{background:var(--lime-300);transform:scale(1.02)}
.btn-acid:active{transform:scale(.99)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:rgba(19,78,66,.08)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:12px;font-weight:600;padding:4px 12px;border:1px solid transparent;letter-spacing:.02em;
}
.badge-acid{border-color:var(--lime-400);color:var(--lime-400);background:rgba(185,242,39,.08)}
.badge-brand{border-color:var(--brand-200);color:var(--brand-700);background:rgba(191,220,212,.4)}
.badge-amber{border-color:rgba(232,163,61,.6);color:#8c5c14;background:rgba(232,163,61,.12)}

/* ---------- 面包屑与文章头 ---------- */
.page-head{border-bottom:1px solid var(--line);background:var(--paper);padding:26px 0 34px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400)}
.crumbs a{color:var(--ink-400);transition:color .2s ease}
.crumbs a:hover{color:var(--brand-700)}
.crumbs span.sep{color:var(--line)}
.crumbs .current{color:var(--ink-600);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:640px){.crumbs .current{white-space:normal}}
.post-head{margin-top:20px;max-width:860px}
.post-head h1{
  font-size:clamp(1.75rem,3.6vw,2.6rem);line-height:1.22;font-weight:800;letter-spacing:-.02em;
  margin:14px 0 16px;color:var(--brand-900);
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--ink-400)}
.post-meta b{color:var(--ink-600);font-weight:600}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ---------- 正文布局 ---------- */
.post-wrap{padding:44px 0 8px}
.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
@media (max-width:1024px){.post-layout{grid-template-columns:minmax(0,1fr);gap:36px}}
.post-main{min-width:0}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-900)}
.article-body h2{position:relative;font-size:clamp(1.35rem,2.2vw,1.6rem);font-weight:800;line-height:1.4;margin:2.1em 0 .7em;padding-left:16px;color:var(--brand-900)}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:1.05em;border-radius:2px;background:var(--lime-400)}
.article-body h3{font-size:19px;font-weight:700;margin:1.7em 0 .6em;color:var(--brand-900)}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.4em}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.3em}
.article-body ul{list-style:none}
.article-body ul>li{position:relative;padding-left:20px;margin:.45em 0}
.article-body ul>li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--lime-400)}
.article-body ol{list-style:decimal}
.article-body ol>li{margin:.45em 0}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-900);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--surface-2);
  border-left:3px solid var(--brand-500);border-radius:0 10px 10px 0;color:var(--ink-600);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:auto;max-width:100%;height:auto;margin:1.7em auto;border-radius:var(--radius-img);border:1px solid var(--line)}
.article-body figure{margin:1.7em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-400);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px}
.article-body th{background:var(--surface-2);text-align:left;font-weight:700;padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body code{font-family:var(--mono);font-size:.92em;background:var(--surface-2);padding:2px 6px;border-radius:6px}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:48px 26px;text-align:center;color:var(--ink-600);
}
.empty-state strong{display:block;font-size:20px;color:var(--brand-900);margin-bottom:8px}
.empty-state .btn{margin-top:18px}

/* ---------- 标签 / 上下篇 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.tag{
  font-size:13px;color:var(--brand-700);background:rgba(191,220,212,.35);
  border:1px solid var(--brand-200);border-radius:999px;padding:5px 13px;transition:background .25s ease;
}
.tag:hover{background:rgba(191,220,212,.7)}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:32px}
@media (max-width:640px){.post-nav{grid-template-columns:minmax(0,1fr)}}
.post-nav a{
  display:block;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:20px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.post-nav a:hover{transform:translateY(-4px);border-color:var(--brand-500);box-shadow:var(--shadow-2)}
.post-nav .k{font-family:var(--mono);font-size:12px;color:var(--ink-400);letter-spacing:.08em}
.post-nav .t{display:block;margin-top:8px;font-weight:700;color:var(--brand-900);font-size:16px}
.post-nav .d{margin-top:6px;font-size:13px;color:var(--ink-600)}

/* ---------- 侧栏 ---------- */
.post-side{position:relative}
.side-sticky{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px}
@media (max-width:1024px){.side-sticky{position:static}}
.side-card{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);padding:22px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:15px;font-weight:800;color:var(--brand-900);letter-spacing:.01em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--lime-400)}
.side-links li+li{border-top:1px solid var(--line)}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--ink-600);transition:color .22s ease,transform .22s ease}
.side-links a:hover{color:var(--brand-700);transform:translateX(3px)}
.side-links a i{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--ink-400)}
.check-list li{position:relative;padding-left:22px;margin:.55em 0;font-size:14px;color:var(--ink-600);line-height:1.7}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border-radius:2px;
  background:var(--lime-400);border:1px solid rgba(10,42,36,.22);
}
.side-cta{background:var(--brand-900);border-radius:var(--radius-card);padding:24px;color:#fff}
.side-cta h3{font-size:18px;font-weight:800;margin-bottom:10px}
.side-cta h3 em{font-style:normal;color:var(--lime-400)}
.side-cta p{font-size:13px;color:rgba(255,255,255,.72);line-height:1.8;margin-bottom:16px}
.side-cta .btn{width:100%}
.side-clock{margin-top:14px;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.04em}
.side-clock b{color:var(--lime-400);font-weight:600}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;letter-spacing:-.02em;color:var(--brand-900)}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-600)}
.section-head .more{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--brand-900)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:1024px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.rel-grid{grid-template-columns:minmax(0,1fr)}}
.rel-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--brand-500);box-shadow:var(--shadow-2)}
.rel-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-card .body .k{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--ink-400)}
.rel-card .body h3{font-size:17px;font-weight:700;color:var(--brand-900);line-height:1.5}
.rel-card .body p{font-size:14px;color:var(--ink-600);line-height:1.75}
.rel-card .body .go{margin-top:auto;padding-top:12px;font-size:13px;font-weight:700;color:var(--brand-700)}

/* ---------- CTA 条 ---------- */
.cta-band{margin-top:72px;background:var(--brand-900);color:#fff}
.cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;padding:56px 0;align-items:center}
@media (max-width:1024px){.cta-inner{grid-template-columns:minmax(0,1fr);padding:44px 0}}
.cta-band h2{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:800;letter-spacing:-.02em;line-height:1.28}
.cta-band h2 em{font-style:normal;color:var(--lime-400)}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.74);max-width:56ch}
.cta-points{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 26px}
.cta-points span{font-size:14px;color:rgba(255,255,255,.86);display:inline-flex;align-items:center;gap:8px}
.cta-points span::before{content:"";width:9px;height:9px;border-radius:2px;background:var(--lime-400)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-note{margin-top:16px;font-family:var(--mono);font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.04em}
.cta-note b{color:var(--lime-400);font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#fff;margin-top:0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding:56px 0 34px}
@media (max-width:1024px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.footer-grid{grid-template-columns:minmax(0,1fr);padding:44px 0 26px}}
.site-footer .logo{color:#fff}
.site-footer .logo-mark{background:var(--lime-400);color:var(--brand-900)}
.site-footer .logo-tag{border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.8);background:transparent}
.footer-brand p{margin-top:14px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;max-width:38ch}
.footer-grid h4{font-size:14px;font-weight:700;letter-spacing:.04em;color:#fff;margin-bottom:16px}
.footer-links li+li,.footer-contact li+li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .22s ease,transform .22s ease;display:inline-block}
.footer-links a:hover{color:var(--lime-400);transform:translateX(2px)}
.footer-contact li{font-size:13px;color:rgba(255,255,255,.72);line-height:1.7}
.footer-contact b{display:inline-block;min-width:38px;color:rgba(255,255,255,.5);font-weight:600}
.sub-form{display:flex;gap:8px;margin-top:16px}
.sub-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-input);padding:11px 13px;color:#fff;font-size:14px;
  transition:border-color .25s ease,background .25s ease;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{outline:none;border-color:var(--lime-400);background:rgba(255,255,255,.12)}
.form-tip{margin-top:8px;font-size:12px;color:rgba(255,255,255,.55);min-height:16px}
.form-tip.err{color:var(--amber-500)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{color:rgba(255,255,255,.72);transition:color .22s ease}
.to-top:hover{color:var(--lime-400)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --brand-900:#0A2A24; --brand-700:#134E42; --brand-500:#1E7261; --brand-200:#BFDCD4;
  --lime-400:#B9F227; --lime-300:#CDFA5E; --amber-500:#E8A33D;
  --ink-900:#111614; --ink-600:#46504C; --ink-400:#8A938E;
  --paper:#F7F5F0; --surface:#FFFFFF; --surface-2:#EFEBE2; --line:#E0DACF;
  --radius-card:16px; --radius-img:12px; --radius-field:10px; --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
  --shadow-2:0 18px 44px -18px rgba(10,42,36,.26);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink-900);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
dl,dd,dt{margin:0}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 倒计时条 ---------- */
.countdown-bar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:13px}
.cd-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding:6px 0}
.cd-left{display:flex;align-items:center;gap:10px;min-width:0}
.cd-name{color:#fff;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.cd-right{display:flex;align-items:center;gap:8px;white-space:nowrap}
.cd-time{color:var(--lime-400);letter-spacing:.06em;font-size:13.5px}
.cd-sep{color:rgba(255,255,255,.35)}
.cd-flash{animation:cdFlash .25s var(--ease)}
@keyframes cdFlash{0%{transform:translateY(-3px);opacity:.5}100%{transform:none;opacity:1}}
@media (max-width:640px){.cd-name,.cd-d{display:none}}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1.7;padding:3px 10px;border-radius:var(--radius-pill);border:1px solid transparent;white-space:nowrap}
.badge-acid{color:var(--lime-400);border-color:rgba(185,242,39,.5);background:rgba(185,242,39,.08)}
.badge-line{color:var(--brand-700);border-color:var(--brand-200);background:var(--surface)}
.badge-soft{color:var(--brand-700);background:var(--brand-200);border-color:transparent}
.tag{display:inline-block;font-size:12.5px;line-height:1.8;padding:4px 12px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);color:var(--ink-600)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;transition:all .25s var(--ease)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(1px)}
.btn-acid{background:var(--lime-400);color:var(--ink-900);font-weight:700}
.btn-acid:hover{background:var(--lime-300);transform:scale(1.02)}
.btn-acid:active{transform:scale(.99)}
.btn-ghost{border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:rgba(19,78,66,.08);transform:translateY(-1px)}
.btn-ghost-light{border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid var(--brand-200);padding-bottom:2px;transition:color .2s,gap .2s}
.link-arrow:hover{color:var(--brand-900);gap:10px}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,240,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease)}
.site-header.is-scrolled{box-shadow:0 8px 28px -20px rgba(10,42,36,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-900);color:var(--lime-400);display:grid;place-items:center;font-size:12.5px;font-weight:800;letter-spacing:.02em;font-family:var(--font-mono)}
.logo-tag{font-size:11px;font-weight:600;padding:2px 7px;border:1px solid var(--brand-200);border-radius:var(--radius-pill);color:var(--brand-700)}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:7px;padding:10px 12px;font-size:15px;color:var(--ink-600);transition:color .22s var(--ease)}
.nav-link::after{content:'';position:absolute;left:12px;right:12px;bottom:5px;height:2px;background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
.nav-link:hover{color:var(--brand-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-900);font-weight:700}
.nav-link.is-active::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--lime-400);flex:0 0 6px}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;place-items:center;background:var(--surface)}
.burger-lines{position:relative;width:18px;height:2px;background:var(--brand-900);border-radius:2px;display:block}
.burger-lines::before,.burger-lines::after{content:'';position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px}
.burger-lines::before{top:-6px}
.burger-lines::after{top:6px}
@media (max-width:1000px){
  .nav-menu{display:none}
  .nav-burger{display:grid}
  .header-actions .btn{display:none}
}

/* ---------- 移动端抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:var(--paper);display:flex;flex-direction:column;
  padding:18px 20px 24px;transform:translateY(-100%);visibility:hidden;transition:transform .34s var(--ease),visibility .34s}
.drawer.is-open{transform:none;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--surface);font-size:18px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-900)}
.drawer-link.is-active{color:var(--brand-700);font-weight:700}
.drawer-link span{font-size:13px;color:var(--ink-400)}
.drawer-cta{margin-top:auto;padding-top:20px;display:grid;gap:10px}
body.nav-locked{overflow:hidden}

/* ---------- 页头 ---------- */
.page-head{position:relative;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line);padding:56px 0 48px}
.page-head::after{content:'';position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(185,242,39,.35),transparent 68%);opacity:.6;pointer-events:none}
.ph-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:end}
.ph-meta{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.code-no{font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--brand-500);background:var(--surface);
  border:1px solid var(--brand-200);padding:3px 10px;border-radius:6px}
.page-head h1{font-size:clamp(2rem,4.4vw,3.25rem);line-height:1.1;letter-spacing:-.02em;font-weight:800;color:var(--brand-900);max-width:22ch}
.ph-sub{margin-top:16px;font-size:16px;color:var(--ink-600);max-width:48ch}
.ph-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.ph-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
.ph-card-label{font-size:12.5px;letter-spacing:.12em;color:var(--ink-400);font-family:var(--font-mono)}
.ph-card-value{font-size:1.5rem;font-weight:800;color:var(--brand-700);margin-top:6px;letter-spacing:-.01em}
.ph-dl{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:grid;gap:10px}
.ph-dl > div{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-600)}
.ph-dl dt{color:var(--ink-400)}
.ph-dl dd{color:var(--brand-900);font-weight:600}
@media (max-width:900px){.ph-grid{grid-template-columns:1fr;gap:28px;align-items:start}}

/* ---------- 板块 ---------- */
.section{padding:76px 0}
.section.alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:768px){.section{padding:52px 0}}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:40px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;color:var(--brand-500)}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--brand-500)}
.section-head h2{margin-top:12px;font-size:clamp(1.6rem,2.7vw,2.25rem);line-height:1.25;letter-spacing:-.02em;font-weight:800;color:var(--brand-900)}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--ink-600);max-width:62ch}
@media (max-width:768px){.section-head{flex-direction:column;align-items:flex-start;gap:14px}}

/* ---------- 图文交替长条 ---------- */
.switch-block{display:grid;grid-template-columns:minmax(0,460px) minmax(0,1fr);gap:44px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line)}
.switch-block:first-of-type{border-top:0;padding-top:0}
.switch-block.is-rev .sb-media{order:2}
.sb-media{position:relative;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;background:var(--surface-2);
  aspect-ratio:4/3;box-shadow:var(--shadow-1)}
.sb-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.sb-media:hover img{transform:scale(1.03)}
.sb-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);color:var(--brand-700);border-color:transparent}
.sb-no{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--brand-500)}
.sb-body h3{margin-top:10px;font-size:1.35rem;line-height:1.4;font-weight:700;color:var(--brand-900)}
.sb-body p{margin-top:12px;color:var(--ink-600);font-size:15.5px}
.tick-list{margin-top:18px;display:grid;gap:10px}
.tick-list li{position:relative;padding-left:28px;font-size:14.5px;color:var(--ink-600)}
.tick-list li::before{content:'✓';position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;
  background:rgba(185,242,39,.42);color:var(--brand-900);display:grid;place-items:center;font-size:11px;font-weight:800;line-height:1}
.sb-note{margin-top:20px;padding:14px 18px;background:var(--surface-2);border-left:3px solid var(--lime-400);
  border-radius:0 10px 10px 0;font-size:14px;color:var(--ink-600)}
@media (max-width:900px){
  .switch-block{grid-template-columns:1fr;gap:24px}
  .switch-block.is-rev .sb-media{order:0}
}

/* ---------- 编号条 ---------- */
.why-list{border-top:1px solid var(--line)}
.why-list li{display:grid;grid-template-columns:68px minmax(0,1fr);gap:20px;align-items:start;
  padding:22px 12px;border-bottom:1px solid var(--line);transition:background .25s var(--ease),transform .25s var(--ease)}
.why-list li:hover{background:var(--surface);transform:translateX(4px)}
.wl-no{font-family:var(--font-mono);font-size:15px;letter-spacing:.1em;color:var(--brand-500)}
.why-list h3{font-size:17px;font-weight:700;color:var(--brand-900)}
.why-list p{margin-top:6px;font-size:14.5px;color:var(--ink-600)}
@media (max-width:560px){.why-list li{grid-template-columns:52px minmax(0,1fr);gap:14px;padding:18px 8px}}

/* ---------- 双栏内容 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease)}
.panel:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:var(--brand-500)}
.panel h3{font-size:18px;font-weight:700;color:var(--brand-900)}
.panel p{margin-top:10px;font-size:14.8px;color:var(--ink-600)}
.panel .badge{margin-bottom:14px}
@media (max-width:820px){.split{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 4px;text-align:left;
  font-size:16px;font-weight:700;color:var(--brand-900)}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-q button{color:var(--brand-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 4px 22px;font-size:15.5px;color:var(--ink-600);max-width:80ch}

/* ---------- CTA 条 ---------- */
.cta-bar{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:68px 0}
.cta-bar::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.14}
.cta-bar::after{content:'';position:absolute;left:-140px;top:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(185,242,39,.28),transparent 70%);pointer-events:none}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center}
.cta-bar h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.28;letter-spacing:-.02em;font-weight:800;color:#fff}
.cta-bar p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:60ch}
.cta-cd{margin-top:18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.7)}
.cta-cd b{font-family:var(--font-mono);color:var(--lime-400);letter-spacing:.06em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:860px){.cta-inner{grid-template-columns:1fr;gap:24px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 24px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.site-footer .logo{color:#fff}
.site-footer .logo-mark{background:var(--lime-400);color:var(--brand-900)}
.site-footer .logo-tag{border-color:rgba(255,255,255,.28);color:rgba(255,255,255,.8)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:34ch}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--lime-400);transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:10px}
.footer-contact b{flex:0 0 auto;color:rgba(255,255,255,.45);font-weight:600}
.sub-form{display:flex;gap:8px;margin-top:16px}
.sub-form input{flex:1;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-field);padding:10px 14px;color:#fff;font-size:14px}
.sub-form input::placeholder{color:rgba(255,255,255,.42)}
.sub-form input:focus{outline:none;border-color:var(--lime-400)}
.sub-msg{margin-top:8px;font-size:13px;color:var(--amber-500);min-height:18px}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}
.to-top{color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.to-top:hover{color:var(--lime-400)}
@media (max-width:960px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
    --brand-900:#0A2A24;
    --brand-700:#134E42;
    --brand-500:#1E7261;
    --brand-200:#BFDCD4;
    --lime-400:#B9F227;
    --lime-300:#CDFA5E;
    --amber-500:#E8A33D;
    --ink-900:#111614;
    --ink-600:#46504C;
    --ink-400:#8A938E;
    --paper:#F7F5F0;
    --surface:#FFFFFF;
    --surface-2:#EFEBE2;
    --line:#E0DACF;
    --sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    --radius:16px;
    --radius-sm:12px;
    --shadow: 0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
    --shadow-hover: 0 18px 44px -18px rgba(10,42,36,.26);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{
    margin:0;
    font-family:var(--sans);
    font-size:16px;
    line-height:1.85;
    color:var(--ink-900);
    background-color:var(--paper);
    background-image:
      radial-gradient(rgba(19,78,66,.045) 1px, transparent 1px);
    background-size:22px 22px;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button,input,select,textarea{ font:inherit; color:inherit; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  h1,h2,h3,h4,p{ margin:0; }
  :focus-visible{ outline:2px solid var(--lime-400); outline-offset:2px; border-radius:4px; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
  @media (min-width:768px){ .container{ padding:0 32px; } }
  @media (min-width:1280px){ .container{ padding:0; } }

  .num{ font-family:var(--mono); font-variant-numeric:tabular-nums; letter-spacing:-.01em; }

  /* ---------- 顶部倒计时条 ---------- */
  .topbar{ background:var(--brand-900); color:rgba(255,255,255,.82); font-size:13px; }
  .topbar-inner{ display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:38px; padding-top:5px; padding-bottom:5px; }
  .topbar-left{ display:flex; align-items:center; gap:10px; min-width:0; }
  .topbar-name{ white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .topbar-right{ display:flex; align-items:center; gap:8px; white-space:nowrap; }
  .topbar-label{ color:rgba(255,255,255,.55); }
  .countdown{ font-family:var(--mono); font-variant-numeric:tabular-nums; color:var(--lime-400); font-weight:700; letter-spacing:.04em; }
  .countdown .cd-sep{ color:rgba(255,255,255,.35); }
  @media (max-width:640px){
    .topbar-name,.topbar-label,.cd-days,.cd-sep-days{ display:none; }
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:rgba(247,245,240,.92);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .3s ease;
  }
  .site-header.is-scrolled{ box-shadow:0 10px 30px -18px rgba(10,42,36,.4); }
  .nav-inner{ display:flex; align-items:center; gap:18px; height:68px; }
  @media (max-width:767px){ .nav-inner{ height:56px; } }

  .logo{ display:inline-flex; align-items:center; gap:10px; font-weight:800; font-size:18px; letter-spacing:-.02em; }
  .logo-mark{
    width:34px; height:34px; border-radius:10px; flex:none;
    background:var(--brand-900); color:var(--lime-400);
    display:grid; place-items:center;
    font-family:var(--mono); font-size:12px; font-weight:800;
  }
  .logo-tag{
    font-size:11px; font-weight:700; padding:2px 8px; border-radius:999px;
    border:1px solid var(--brand-500); color:var(--brand-700); line-height:1.6;
  }

  .nav-menu{ display:none; align-items:center; gap:4px; margin-left:auto; }
  @media (min-width:1024px){ .nav-menu{ display:flex; } }
  .nav-link{
    position:relative; display:inline-block;
    padding:8px 12px; font-size:15px; color:var(--ink-600);
    border-radius:8px; white-space:nowrap;
    transition:color .2s ease;
  }
  .nav-link::after{
    content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px;
    background:var(--lime-400); transform:scaleX(0); transform-origin:left;
    transition:transform .28s cubic-bezier(.22,.61,.36,1);
  }
  .nav-link:hover{ color:var(--ink-900); }
  .nav-link:hover::after{ transform:scaleX(1); }
  .nav-link.is-active{ color:var(--ink-900); font-weight:700; }
  .nav-link.is-active::after{ transform:scaleX(1); }

  .nav-cta{ display:none; margin-left:10px; }
  @media (min-width:1024px){ .nav-cta{ display:inline-flex; } }

  .hamburger{
    margin-left:auto; width:44px; height:44px; border-radius:12px;
    border:1px solid var(--line); background:var(--surface);
    display:grid; place-items:center; cursor:pointer; gap:4px;
  }
  .hamburger span{ display:block; width:18px; height:2px; background:var(--ink-900); border-radius:2px; }
  @media (min-width:1024px){ .hamburger{ display:none; } }

  /* ---------- 抽屉 ---------- */
  .drawer{
    position:fixed; inset:0; z-index:90; background:var(--paper);
    display:flex; flex-direction:column; padding:20px;
    transform:translateY(-100%); transition:transform .35s cubic-bezier(.22,.61,.36,1);
  }
  .drawer.is-open{ transform:translateY(0); }
  .drawer-head{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding-bottom:16px; border-bottom:1px solid var(--line); }
  .icon-btn{
    width:40px; height:40px; border-radius:12px; border:1px solid var(--line);
    background:var(--surface); cursor:pointer; font-size:16px; line-height:1;
  }
  .drawer-nav{ display:flex; flex-direction:column; margin-top:8px; }
  .drawer-nav a{
    display:flex; align-items:center; min-height:52px; font-size:17px; font-weight:600;
    color:var(--ink-600); border-bottom:1px solid var(--line);
  }
  .drawer-nav a.is-active{ color:var(--ink-900); }
  .drawer-foot{ margin-top:auto; padding-top:20px; }
  .drawer-foot .btn{ width:100%; justify-content:center; }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:14px 28px; border-radius:999px; font-size:15px; font-weight:700;
    border:1px solid transparent; cursor:pointer; white-space:nowrap;
    transition:background-color .25s ease, color .25s ease, transform .2s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .btn-primary{ background:var(--brand-700); color:#fff; }
  .btn-primary:hover{ background:var(--brand-900); transform:translateY(-1px); }
  .btn-primary:active{ transform:translateY(1px); }
  .btn-acid{ background:var(--lime-400); color:var(--ink-900); }
  .btn-acid:hover{ background:var(--lime-300); transform:scale(1.02); }
  .btn-acid:active{ transform:scale(.99); }
  .btn-ghost{ background:transparent; border-color:var(--brand-700); color:var(--brand-700); }
  .btn-ghost:hover{ background:rgba(19,78,66,.08); }
  .btn-sm{ padding:10px 18px; font-size:14px; }

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:4px 12px; border-radius:999px; font-size:12px; font-weight:700;
    border:1px solid var(--line); background:var(--surface); color:var(--ink-600); line-height:1.7;
  }
  .badge-acid{ border-color:var(--lime-400); color:var(--brand-900); background:rgba(185,242,39,.22); }
  .badge-sm{ padding:2px 10px; font-size:11px; }
  .tag{
    display:inline-block; padding:2px 10px; border-radius:6px; font-size:12px;
    background:var(--surface-2); color:var(--ink-600); border:1px solid var(--line);
  }

  /* ---------- 页头 ---------- */
  .page-hero{
    position:relative; overflow:hidden;
    background-color:var(--surface-2);
    background-image:linear-gradient(100deg, rgba(247,245,240,.97) 0%, rgba(247,245,240,.86) 46%, rgba(10,42,36,.72) 100%), url('/assets/images/backpic/back-1.png');
    background-size:cover; background-position:center right;
    border-bottom:1px solid var(--line);
  }
  .page-hero-inner{ padding:56px 0 60px; }
  @media (min-width:768px){ .page-hero-inner{ padding:78px 0 84px; } }
  .hero-meta{ display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-bottom:20px; }
  .cat-code{
    font-family:var(--mono); font-size:13px; font-weight:700; letter-spacing:.08em;
    padding:5px 12px; border-radius:6px; color:var(--lime-400); background:var(--brand-900);
  }
  .page-hero h1{
    font-size:clamp(2rem,5vw,3.4rem); line-height:1.12; letter-spacing:-.02em; font-weight:800;
    max-width:16em;
  }
  .page-hero .lead{ margin-top:18px; max-width:42em; font-size:17px; color:var(--ink-600); }
  .hero-stats{ display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
  .hero-stat{
    flex:1 1 150px; background:rgba(255,255,255,.86); border:1px solid var(--line);
    border-radius:var(--radius-sm); padding:14px 16px; box-shadow:var(--shadow);
  }
  .hero-stat b{ display:block; font-family:var(--mono); font-size:22px; font-weight:800; color:var(--brand-700); }
  .hero-stat span{ font-size:13px; color:var(--ink-400); }

  /* ---------- 通用板块 ---------- */
  .sec{ padding:56px 0; }
  @media (min-width:768px){ .sec{ padding:76px 0; } }
  @media (min-width:1024px){ .sec{ padding:96px 0; } }
  .sec-alt{ background:var(--surface-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .sec-head{ max-width:44em; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-family:var(--mono); font-size:12px; font-weight:700; letter-spacing:.14em;
    color:var(--brand-500); text-transform:uppercase;
  }
  .eyebrow::before{ content:""; width:22px; height:1px; background:var(--brand-500); }
  h2.sec-title{
    font-size:clamp(1.6rem,3vw,2.3rem); line-height:1.22; letter-spacing:-.02em; font-weight:800;
    margin-top:12px;
  }
  .sec-desc{ margin-top:14px; color:var(--ink-600); font-size:16px; }

  .rule-line{ height:0; border-top:1px dashed var(--line); margin:36px 0; }

  /* ---------- 编号横条 ---------- */
  .num-strip{ margin-top:36px; border-top:1px solid var(--line); }
  .num-strip-item{
    display:grid; grid-template-columns:44px 1fr; gap:14px; align-items:start;
    padding:20px 12px; border-bottom:1px solid var(--line);
    transition:background-color .25s ease, transform .25s ease;
  }
  @media (min-width:768px){
    .num-strip-item{ grid-template-columns:80px 240px 1fr; align-items:center; gap:20px; }
  }
  .num-strip-item:hover{ background-color:var(--surface); transform:translateX(4px); }
  .strip-idx{ font-family:var(--mono); font-size:14px; font-weight:800; color:var(--brand-500); }
  .strip-title{ font-size:17px; font-weight:700; }
  .strip-text{ color:var(--ink-600); font-size:15px; }

  /* ---------- 步骤流 / 时间轴 ---------- */
  .flow-head{ display:grid; gap:24px; align-items:end; }
  @media (min-width:1024px){ .flow-head{ grid-template-columns:1.15fr .85fr; gap:48px; } }
  .flow-figure{
    border-radius:var(--radius-sm); overflow:hidden; border:1px solid var(--line);
    background:var(--surface-2); box-shadow:var(--shadow); position:relative; aspect-ratio:16/10;
  }
  .flow-figure img{ width:100%; height:100%; object-fit:cover; }
  .flow-figure figcaption{
    position:absolute; left:12px; bottom:12px; font-size:12px; font-weight:700;
    background:rgba(10,42,36,.86); color:var(--lime-400); padding:5px 12px; border-radius:999px;
  }

  .timeline{ position:relative; margin-top:44px; }
  .timeline::before{
    content:""; position:absolute; left:11px; top:12px; bottom:36px; width:1px; background:var(--line);
  }
  .tl-item{ display:grid; grid-template-columns:24px 1fr; column-gap:18px; padding-bottom:26px; }
  .tl-item:last-child{ padding-bottom:0; }
  .tl-dot{
    width:11px; height:11px; border-radius:999px; margin:9px auto 0;
    background:var(--lime-400); border:2px solid var(--brand-900); position:relative; z-index:1;
  }
  .tl-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
    padding:20px; box-shadow:var(--shadow);
    transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  }
  .tl-card:hover{ transform:translateY(-4px); border-color:var(--brand-500); box-shadow:var(--shadow-hover); }
  .tl-card-head{ display:flex; flex-wrap:wrap; align-items:baseline; gap:10px; }
  .tl-idx{ font-family:var(--mono); font-size:13px; font-weight:800; color:#fff; background:var(--brand-700); padding:2px 9px; border-radius:6px; }
  .tl-card-head h3{ font-size:18px; font-weight:700; letter-spacing:-.01em; }
  .tl-time{ margin-left:auto; font-family:var(--mono); font-size:13px; color:var(--ink-400); }
  .tl-card p{ margin-top:10px; color:var(--ink-600); font-size:15px; }
  .tl-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }

  /* ---------- 参数行 ---------- */
  .spec-list{ margin-top:36px; border-top:1px solid var(--line); }
  .spec-row{
    display:grid; grid-template-columns:1fr auto; gap:16px; align-items:center;
    padding:18px 0; border-bottom:1px solid var(--line);
  }
  .spec-label{ font-size:15px; font-weight:700; }
  .spec-bar{ height:6px; border-radius:999px; background:var(--surface-2); overflow:hidden; margin-top:10px; max-width:420px; }
  .spec-bar i{ display:block; height:100%; background:var(--brand-500); border-radius:999px; }
  .spec-row:hover .spec-bar i{ background:var(--lime-400); }
  .spec-bar i{ transition:background-color .3s ease; }
  .spec-value{ font-family:var(--mono); font-size:18px; font-weight:800; color:var(--brand-700); white-space:nowrap; }
  .spec-note{ font-size:13px; color:var(--ink-400); margin-top:6px; }

  /* ---------- 深色区块 ---------- */
  .sec-dark{
    background:var(--brand-900); color:rgba(255,255,255,.8);
    border-top:1px solid rgba(255,255,255,.08);
  }
  .sec-dark h2{ color:#fff; }
  .sec-dark .eyebrow{ color:var(--lime-400); }
  .sec-dark .eyebrow::before{ background:var(--lime-400); }
  .dark-grid{ display:grid; gap:32px; align-items:start; }
  @media (min-width:1024px){ .dark-grid{ grid-template-columns:1fr 1fr; gap:64px; } }
  .dark-list{ display:flex; flex-direction:column; }
  .dark-list li{
    display:grid; grid-template-columns:22px 1fr; gap:14px;
    padding:20px 0; border-bottom:1px solid rgba(255,255,255,.12);
  }
  .dark-list li:first-child{ border-top:1px solid rgba(255,255,255,.12); }
  .dark-check{
    width:20px; height:20px; border-radius:6px; margin-top:4px;
    background:rgba(185,242,39,.16); border:1px solid var(--lime-400);
    color:var(--lime-400); display:grid; place-items:center; font-size:12px; font-weight:800;
  }
  .dark-list b{ display:block; color:#fff; font-size:16px; }
  .dark-list span{ font-size:14.5px; color:rgba(255,255,255,.7); }

  /* ---------- FAQ ---------- */
  .faq-wrap{ margin-top:32px; border-top:1px solid var(--line); }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:18px;
    padding:20px 4px; background:none; border:0; cursor:pointer; text-align:left;
    font-size:16px; font-weight:700; color:var(--ink-900);
    transition:color .2s ease, padding-left .2s ease;
  }
  .faq-q:hover{ color:var(--brand-700); padding-left:8px; }
  .faq-icon{
    flex:none; width:26px; height:26px; border-radius:8px; border:1px solid var(--line);
    display:grid; place-items:center; font-family:var(--mono); font-size:15px; font-weight:700;
    color:var(--brand-700); background:var(--surface);
  }
  .faq-item.is-open .faq-icon{ background:var(--lime-400); border-color:var(--lime-400); color:var(--ink-900); }
  .faq-a{ max-height:0; overflow:hidden; transition:max-height .32s cubic-bezier(.22,.61,.36,1); }
  .faq-a p{ padding:0 4px 22px; color:var(--ink-600); font-size:15.5px; max-width:60em; }

  /* ---------- 底部 CTA ---------- */
  .cta-bar{
    background:var(--brand-900); color:rgba(255,255,255,.78);
    background-image:radial-gradient(circle at 92% 18%, rgba(185,242,39,.14), transparent 42%);
    border-top:1px solid rgba(255,255,255,.08);
  }
  .cta-inner{
    display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
    gap:24px; padding:48px 0;
  }
  @media (min-width:768px){ .cta-inner{ padding:60px 0; } }
  .cta-inner h2{ color:#fff; font-size:clamp(1.4rem,2.6vw,2rem); font-weight:800; letter-spacing:-.02em; line-height:1.3; max-width:22em; }
  .cta-inner p{ margin-top:10px; font-size:15px; }
  .cta-actions{ display:flex; flex-wrap:wrap; align-items:center; gap:14px; }
  .cta-timer{ font-family:var(--mono); font-size:13px; color:var(--lime-400); }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900); color:rgba(255,255,255,.72);
    border-top:1px solid rgba(255,255,255,.08);
    font-size:14.5px;
  }
  .footer-grid{
    display:grid; gap:32px; padding:52px 0 34px;
  }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1.4fr; gap:40px; } }
  .footer-brand .logo{ color:#fff; }
  .footer-brand .logo-mark{ background:var(--lime-400); color:var(--brand-900); }
  .footer-brand .logo-tag{ border-color:rgba(255,255,255,.35); color:rgba(255,255,255,.75); }
  .footer-brand p{ margin-top:14px; font-size:14px; color:rgba(255,255,255,.66); max-width:30em; }
  .site-footer h4{ color:#fff; font-size:15px; font-weight:700; margin-bottom:14px; }
  .footer-links li{ margin-bottom:10px; }
  .footer-links a, .footer-contact li{ color:rgba(255,255,255,.72); transition:color .22s ease, transform .22s ease; display:inline-block; }
  .footer-links a:hover{ color:var(--lime-400); transform:translateX(2px); }
  .footer-contact li{ display:block; margin-bottom:10px; }
  .footer-contact b{ color:#fff; font-weight:700; margin-right:8px; }
  .sub-form{ display:flex; gap:8px; margin-top:16px; flex-wrap:wrap; }
  .sub-form input{
    flex:1 1 160px; min-width:0; padding:11px 14px; border-radius:10px;
    background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18);
    color:#fff; font-size:14px;
  }
  .sub-form input::placeholder{ color:rgba(255,255,255,.45); }
  .sub-form input:focus{ outline:none; border-color:var(--lime-400); }
  .sub-msg{ font-size:13px; margin-top:10px; color:var(--amber-500); }
  .footer-bottom{
    display:flex; flex-wrap:wrap; gap:10px 24px; align-items:center; justify-content:space-between;
    padding:20px 0 32px; border-top:1px solid rgba(255,255,255,.08);
    font-size:13px; color:rgba(255,255,255,.55);
  }
  .to-top{ color:rgba(255,255,255,.72); transition:color .22s ease; }
  .to-top:hover{ color:var(--lime-400); }

  /* ---------- 入场动效 ---------- */
  .reveal{ opacity:0; transform:translateY(10px); transition:opacity .5s cubic-bezier(.22,.61,.36,1), transform .5s cubic-bezier(.22,.61,.36,1); }
  .reveal.is-visible{ opacity:1; transform:none; }

  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{ animation:none !important; transition:none !important; }
    .reveal{ opacity:1; transform:none; }
    html{ scroll-behavior:auto; }
  }

/* roulang page: category3 */
:root{
    --brand-900:#0A2A24;
    --brand-700:#134E42;
    --brand-500:#1E7261;
    --brand-200:#BFDCD4;
    --lime-400:#B9F227;
    --lime-300:#CDFA5E;
    --amber-500:#E8A33D;
    --ink-900:#111614;
    --ink-600:#46504C;
    --ink-400:#8A938E;
    --paper:#F7F5F0;
    --surface:#FFFFFF;
    --surface-2:#EFEBE2;
    --line:#E0DACF;
    --radius-card:16px;
    --radius-img:12px;
    --radius-input:10px;
    --radius-pill:999px;
    --shadow-1:0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
    --shadow-2:0 18px 44px -18px rgba(10,42,36,.26);
    --font-sans: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --nav-h:68px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-900);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
  input{font-family:inherit;font-size:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;font-weight:800}
  p{margin:0}
  .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:768px){ .container{padding:0 32px} }
  @media (min-width:1280px){ .container{padding:0} }

  :focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}

  /* ---------- 倒计时条 ---------- */
  .countdown-bar{
    background:var(--brand-900);
    color:#fff;
    height:40px;
    display:flex;
    align-items:center;
    font-size:13px;
  }
  .cd-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .cd-left{display:flex;align-items:center;gap:10px;min-width:0}
  .cd-name{letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .cd-right{display:flex;align-items:center;gap:10px;white-space:nowrap}
  .cd-label{color:rgba(255,255,255,.6)}
  .cd-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--lime-400);letter-spacing:.04em}
  .cd-sep{color:rgba(255,255,255,.35)}
  .cd-flash{animation:cdFlash .25s ease}
  @keyframes cdFlash{
    0%{transform:translateY(0);opacity:1}
    50%{transform:translateY(-3px);opacity:.45}
    100%{transform:translateY(0);opacity:1}
  }
  @media (max-width:640px){
    .cd-name,.cd-label{display:none}
    .cd-day,.cd-daysep{display:none}
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(247,245,240,.92);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .3s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(10,42,36,.5)}
  .header-inner{
    height:var(--nav-h);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
  }
  .logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--brand-900)}
  .logo-mark{
    width:32px;height:32px;border-radius:9px;
    background:var(--brand-900);color:var(--lime-400);
    display:inline-flex;align-items:center;justify-content:center;
    font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:-.03em;
  }
  .logo-tag{
    font-size:11px;font-weight:600;letter-spacing:.06em;
    color:var(--brand-700);
    border:1px solid var(--brand-200);
    background:rgba(30,114,97,.06);
    padding:2px 7px;border-radius:var(--radius-pill);
  }
  .nav-menu{display:flex;align-items:center;gap:26px}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--ink-600);
    padding:6px 0;
    transition:color .22s ease;
  }
  .nav-link::after{
    content:"";
    position:absolute;left:0;bottom:0;
    height:2px;width:0;
    background:var(--lime-400);
    transition:width .28s cubic-bezier(.22,.61,.36,1);
  }
  .nav-link:hover{color:var(--brand-900)}
  .nav-link:hover::after{width:100%}
  .nav-link:active{transform:translateY(1px)}
  .nav-link.is-active{color:var(--brand-900);font-weight:700;padding-left:12px}
  .nav-link.is-active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:6px;height:6px;border-radius:50%;background:var(--brand-500);
  }
  .nav-link.is-active::after{width:100%}
  .header-actions{display:flex;align-items:center;gap:12px}
  .menu-toggle{
    display:none;
    width:42px;height:38px;border-radius:10px;
    border:1px solid var(--line);background:var(--surface);
    flex-direction:column;align-items:center;justify-content:center;gap:4px;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  @media (max-width:1024px){
    .nav-menu{display:none}
    .menu-toggle{display:inline-flex}
  }
  @media (max-width:420px){
    .header-actions .btn-primary{display:none}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;
    border-radius:var(--radius-pill);
    font-size:15px;font-weight:700;letter-spacing:.01em;
    transition:background-color .22s ease,color .22s ease,transform .18s ease,box-shadow .22s ease,border-color .22s ease;
    border:1px solid transparent;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
  .btn-ghost:hover{background:rgba(19,78,66,.08);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-acid{background:var(--lime-400);color:var(--ink-900)}
  .btn-acid:hover{background:var(--lime-300);transform:scale(1.02)}
  .btn-acid:active{transform:scale(.99)}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
  .btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55)}
  .btn-sm{padding:10px 20px;font-size:14px}
  .btn-block{width:100%}

  /* ---------- 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:3px 11px;border-radius:var(--radius-pill);
    font-size:12px;font-weight:600;line-height:1.7;
  }
  .badge-acid{color:var(--lime-400);border:1px solid rgba(185,242,39,.55)}
  .badge-line{color:var(--brand-700);border:1px solid var(--brand-200);background:rgba(30,114,97,.06)}
  .badge-solid{background:var(--surface-2);color:var(--ink-600)}
  .mono-tag{
    font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.08em;
    color:var(--brand-700);
    background:var(--surface);
    border:1px solid var(--line);
    padding:3px 10px;border-radius:6px;
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;
    background:var(--paper);
    transform:translateX(100%);
    transition:transform .32s cubic-bezier(.22,.61,.36,1);
    display:flex;flex-direction:column;
    visibility:hidden;
  }
  .drawer.is-open{transform:translateX(0);visibility:visible}
  .drawer-inner{flex:1;display:flex;flex-direction:column;padding:calc(var(--nav-h) + 16px) 22px 0}
  .drawer-link{
    display:flex;align-items:center;height:52px;
    font-size:16px;color:var(--ink-600);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.is-active{color:var(--brand-900);font-weight:700}
  .drawer-link.is-active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);margin-right:10px}
  .drawer-foot{padding:16px 22px 28px;border-top:1px solid var(--line);background:var(--paper)}

  /* ---------- 页头 ---------- */
  .page-head{background:var(--surface-2);border-bottom:1px solid var(--line);padding:56px 0 48px}
  .page-head-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:48px;align-items:end}
  .head-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:20px}
  .page-head h1{
    font-size:clamp(2rem,4.2vw,3.15rem);
    line-height:1.12;
    color:var(--brand-900);
    max-width:15em;
  }
  .page-lead{margin-top:18px;font-size:17px;color:var(--ink-600);max-width:38em}
  .head-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
  .page-head-aside{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px 24px;
    box-shadow:var(--shadow-1);
  }
  .quick-list li{
    display:flex;align-items:baseline;justify-content:space-between;gap:16px;
    padding:11px 0;border-bottom:1px dashed var(--line);
    font-size:14px;
  }
  .quick-list li:last-child{border-bottom:0;padding-bottom:0}
  .quick-list li:first-child{padding-top:0}
  .quick-list span{color:var(--ink-400)}
  .quick-list b{font-weight:700;color:var(--brand-900);text-align:right}

  /* ---------- 通用板块 ---------- */
  .section{padding:72px 0}
  .section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  @media (min-width:768px){ .section{padding:96px 0} }
  .sec-head{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:end;margin-bottom:44px}
  .sec-kicker{
    display:inline-block;
    font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.14em;
    color:var(--brand-500);text-transform:uppercase;margin-bottom:12px;
  }
  .sec-head h2{font-size:clamp(1.6rem,3vw,2.35rem);color:var(--brand-900)}
  .sec-note{font-size:14px;color:var(--ink-400);max-width:34em}

  /* ---------- 数据行 ---------- */
  .data-list{border-top:1px solid var(--line)}
  .data-row{
    display:grid;
    grid-template-columns:minmax(140px,230px) 1fr 132px;
    gap:20px;align-items:center;
    padding:17px 14px;
    border-bottom:1px solid var(--line);
    border-radius:10px;
    transition:background-color .22s ease,transform .22s ease;
  }
  .data-row:hover{background:var(--surface-2);transform:translateX(4px)}
  .data-label{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:700;color:var(--ink-900)}
  .data-idx{font-family:var(--font-mono);font-size:12px;color:var(--ink-400);font-weight:700}
  .data-bar{height:6px;border-radius:var(--radius-pill);background:var(--surface-2);overflow:hidden}
  .data-row:hover .data-bar{background:#E4DFD4}
  .bar-fill{display:block;height:100%;border-radius:var(--radius-pill);background:var(--brand-500)}
  .bar-fill.is-warn{background:var(--amber-500)}
  .data-value{font-family:var(--font-mono);font-size:14px;font-weight:700;text-align:right;color:var(--brand-700)}
  .data-value small{display:block;font-family:var(--font-sans);font-size:12px;font-weight:500;color:var(--ink-400)}
  .data-foot{
    margin-top:32px;display:grid;grid-template-columns:1.6fr auto;gap:28px;align-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 28px;box-shadow:var(--shadow-1);
  }
  .data-foot p{font-size:15px;color:var(--ink-600);max-width:52em}

  /* ---------- 对比行 ---------- */
  .compare{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface)}
  .compare-head,.compare-row{display:grid;grid-template-columns:1.05fr 1.35fr 1fr 1.35fr;gap:18px;align-items:center}
  .compare-head{
    background:var(--surface-2);
    padding:14px 22px;
    font-size:13px;font-weight:700;color:var(--ink-600);letter-spacing:.02em;
  }
  .compare-row{padding:18px 22px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-600);transition:background-color .22s ease}
  .compare-row:hover{background:rgba(239,235,226,.55)}
  .compare-name{font-weight:700;color:var(--ink-900)}
  .compare-row .mono{font-size:14px;color:var(--brand-700);font-weight:700}

  /* ---------- 图文分栏 ---------- */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
  .split-media img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border-radius:var(--radius-img);border:1px solid var(--line);
    background:var(--surface-2);
    transition:transform .6s cubic-bezier(.22,.61,.36,1);
  }
  .split-media{overflow:hidden;border-radius:var(--radius-img)}
  .split-media:hover img{transform:scale(1.03)}
  .split-body h2{font-size:clamp(1.5rem,2.6vw,2.1rem);color:var(--brand-900);margin-bottom:16px}
  .split-body > p{font-size:15px;color:var(--ink-600);margin-bottom:22px}
  .check-list li{
    display:flex;gap:14px;align-items:flex-start;
    padding:15px 0;border-bottom:1px solid var(--line);
    font-size:15px;color:var(--ink-600);
  }
  .check-list li:last-child{border-bottom:0}
  .check-list b{color:var(--ink-900);font-weight:700}
  .check-list .tick{
    flex:0 0 auto;margin-top:3px;
    width:18px;height:18px;border-radius:5px;
    background:rgba(185,242,39,.35);
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--brand-900);font-size:11px;font-weight:900;
  }

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:start}
  .accordion{border-top:1px solid var(--line)}
  .acc-item{border-bottom:1px solid var(--line)}
  .acc-head{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:20px 4px;text-align:left;
    font-size:16px;font-weight:700;color:var(--ink-900);
    transition:color .22s ease,padding-left .22s ease;
  }
  .acc-head:hover{color:var(--brand-700);padding-left:8px}
  .acc-icon{
    position:relative;flex:0 0 auto;width:16px;height:16px;
  }
  .acc-icon::before,.acc-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);border-radius:2px;
    transform:translate(-50%,-50%);transition:transform .32s ease,opacity .32s ease;
  }
  .acc-icon::before{width:14px;height:2px}
  .acc-icon::after{width:2px;height:14px}
  .acc-item.is-open .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .acc-panel{max-height:0;overflow:hidden;transition:max-height .32s cubic-bezier(.22,.61,.36,1)}
  .acc-panel-inner{padding:0 4px 22px;font-size:15px;color:var(--ink-600);max-width:56em}

  /* ---------- CTA 条 ---------- */
  .cta-band{background:var(--brand-900);color:#fff;padding:64px 0}
  .cta-inner{display:grid;grid-template-columns:1.5fr auto;gap:40px;align-items:center}
  .cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);color:#fff;margin-bottom:14px}
  .cta-band p{font-size:15px;color:rgba(255,255,255,.72);max-width:44em}
  .cta-count{margin-top:16px;font-size:13px;color:rgba(255,255,255,.6)}
  .cta-count .mono{color:var(--lime-400);font-weight:700}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900);color:rgba(255,255,255,.72);
    border-top:1px solid rgba(255,255,255,.08);
    padding:64px 0 28px;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px}
  .footer-brand p{font-size:14px;margin-top:14px;max-width:32em;line-height:1.8}
  .site-footer .logo{color:#fff}
  .site-footer .logo-mark{background:var(--lime-400);color:var(--brand-900)}
  .site-footer .logo-tag{color:var(--lime-400);border-color:rgba(185,242,39,.4);background:transparent}
  .site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
  .footer-links li{margin-bottom:11px}
  .footer-links a{font-size:14px;transition:color .22s ease,transform .22s ease;display:inline-block}
  .footer-links a:hover{color:var(--lime-400);transform:translateX(2px)}
  .footer-contact li{font-size:14px;margin-bottom:11px}
  .footer-contact b{display:block;color:rgba(255,255,255,.45);font-size:12px;font-weight:600;letter-spacing:.04em}
  .sub-form{display:flex;gap:9px;margin-top:16px}
  .sub-form input{
    flex:1;min-width:0;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.18);
    border-radius:var(--radius-input);
    padding:11px 14px;color:#fff;font-size:14px;
    transition:border-color .22s ease,background-color .22s ease;
  }
  .sub-form input::placeholder{color:rgba(255,255,255,.42)}
  .sub-form input:focus{border-color:var(--lime-400);background:rgba(255,255,255,.12);outline:none}
  .sub-msg{margin-top:10px;font-size:13px;color:var(--amber-500);min-height:18px}
  .sub-msg.is-ok{color:var(--lime-400)}
  .footer-bottom{
    margin-top:48px;padding-top:22px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.5);
  }
  .to-top{color:rgba(255,255,255,.72);transition:color .22s ease}
  .to-top:hover{color:var(--lime-400)}

  /* ---------- 动效 ---------- */
  .reveal{opacity:0;transform:translateY(10px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1)}
  .reveal.is-visible{opacity:1;transform:none}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important}
    .reveal{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .page-head-grid{grid-template-columns:1fr;gap:32px;align-items:start}
    .sec-head{grid-template-columns:1fr;gap:14px;align-items:start;margin-bottom:32px}
    .split{grid-template-columns:1fr;gap:32px}
    .faq-wrap{grid-template-columns:1fr;gap:24px}
    .cta-inner{grid-template-columns:1fr;gap:28px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
    .data-row{grid-template-columns:minmax(120px,200px) 1fr 118px;gap:16px}
  }
  @media (max-width:768px){
    .section{padding:56px 0}
    .page-head{padding:40px 0 34px}
    .data-row{
      grid-template-columns:1fr auto;
      grid-template-areas:"label value" "bar bar";
      gap:10px 14px;
      padding:16px 4px;
    }
    .data-label{grid-area:label}
    .data-value{grid-area:value}
    .data-bar{grid-area:bar}
    .data-foot{grid-template-columns:1fr}
    .compare-head{display:none}
    .compare-row{
      grid-template-columns:1fr;
      gap:8px;
      padding:18px 18px 20px;
    }
    .compare-row > span:not(.compare-name){font-size:13.5px}
    .compare-name{font-size:16px;margin-bottom:2px}
    .cta-band{padding:48px 0}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  }
  @media (max-width:520px){
    body{font-size:15.5px}
    .page-head h1{font-size:1.85rem}
    .head-cta .btn{flex:1 1 auto;justify-content:center}
    .acc-head{font-size:15px;padding:17px 2px}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .sub-form{flex-direction:column}
    .sub-form .btn{width:100%}
  }

/* roulang page: category4 */
:root{
  --brand-900:#0A2A24;
  --brand-700:#134E42;
  --brand-500:#1E7261;
  --brand-200:#BFDCD4;
  --lime-400:#B9F227;
  --lime-300:#CDFA5E;
  --amber-500:#E8A33D;
  --ink-900:#111614;
  --ink-600:#46504C;
  --ink-400:#8A938E;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#EFEBE2;
  --line:#E0DACF;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(17,22,20,.04), 0 12px 32px -16px rgba(10,42,36,.18);
  --sh-2:0 18px 44px -18px rgba(10,42,36,.26);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
input,select{font:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0}}

/* ============ 顶部倒计时条 ============ */
.ticker{background:var(--brand-900);color:#fff;font-size:13px}
.ticker-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:12px}
.ticker-left{display:flex;align-items:center;gap:10px;min-width:0}
.ticker-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.82)}
.badge-dot{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border:1px solid var(--lime-400);border-radius:var(--r-pill);color:var(--lime-400);font-size:12px;line-height:1.6;white-space:nowrap}
.badge-dot i{width:6px;height:6px;border-radius:50%;background:var(--lime-400);display:inline-block}
.ticker-right{display:flex;align-items:center;gap:8px;white-space:nowrap}
.ticker-right b{color:var(--lime-400);font-weight:600;letter-spacing:.04em}
.ticker-right em{font-style:normal;color:rgba(255,255,255,.5);font-size:12px}
.cd-hide-sm{display:none}
@media (min-width:768px){.cd-hide-sm{display:inline}.cd-hide-lg{display:none}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(10,42,36,.45)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:56px}
@media (min-width:1024px){.nav-inner{height:68px}}
.logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;letter-spacing:-.02em;font-size:17px;color:var(--brand-900)}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand-700);color:var(--lime-400);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;letter-spacing:.02em;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.logo-tag{font-size:11px;font-weight:600;color:var(--brand-700);border:1px solid var(--brand-200);background:rgba(191,220,212,.35);border-radius:var(--r-pill);padding:1px 7px;letter-spacing:.02em}
.nav-menu{display:none}
@media (min-width:1024px){
  .nav-menu{display:flex;align-items:center;gap:4px}
  .nav-link{
    position:relative;padding:8px 12px;font-size:15px;color:var(--ink-600);
    border-radius:8px;transition:color .25s var(--ease);white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
  }
  .nav-link:hover{color:var(--brand-900)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--brand-900);font-weight:700}
  .nav-link.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime-400);margin-right:7px;vertical-align:middle}
  .nav-link.is-active::after{transform:scaleX(1)}
}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-cta{display:none}
@media (min-width:640px){.nav-cta{display:inline-flex}}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
}
.burger span{display:block;width:16px;height:2px;background:var(--brand-900);margin:0 auto;border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

.drawer{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line);padding:0 20px}
.drawer nav{padding:12px 12px 0;flex:1;overflow:auto}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 12px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-600)}
.drawer-link.is-active{color:var(--brand-900);font-weight:700}
.drawer-link.is-active span.mk{width:6px;height:6px;border-radius:50%;background:var(--lime-400)}
.drawer-cta{padding:16px 20px 28px;border-top:1px solid var(--line);background:var(--surface)}
body.no-scroll{overflow:hidden}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  transition:background .25s var(--ease),color .25s var(--ease),transform .18s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-acid{background:var(--lime-400);color:var(--ink-900)}
.btn-acid:hover{background:var(--lime-300);transform:scale(1.02)}
.btn-acid:active{transform:scale(.99)}
.btn-ghost{background:transparent;color:var(--brand-700);border:1px solid var(--brand-700)}
.btn-ghost:hover{background:rgba(19,78,66,.08)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-outline-light:hover{border-color:var(--lime-400);color:var(--lime-400)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:var(--r-pill);font-size:12px;font-weight:600;border:1px solid var(--brand-200);color:var(--brand-700);background:rgba(191,220,212,.28);white-space:nowrap}
.badge-acid{border-color:var(--lime-400);color:var(--brand-900);background:rgba(185,242,39,.35)}
.badge-lime-outline{border-color:var(--lime-400);color:var(--lime-400);background:transparent}
.badge-amber{border-color:var(--amber-500);color:#8a5c14;background:rgba(232,163,61,.16)}
.tag-label{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;background:var(--surface-2);color:var(--ink-600);border:1px solid var(--line)}

/* ============ 页头 ============ */
.page-head{background:var(--surface-2);border-bottom:1px solid var(--line);padding:48px 0 44px;position:relative;overflow:hidden}
.page-head::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle, rgba(185,242,39,.22), rgba(185,242,39,0) 70%);
}
@media (min-width:1024px){.page-head{padding:72px 0 64px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:20px}
.crumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:var(--line)}
.crumb .now{color:var(--ink-600)}
.head-code{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;letter-spacing:.14em;color:var(--brand-500);
  display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;
}
.head-code::before{content:"";width:24px;height:2px;background:var(--lime-400);display:inline-block}
.page-head h1{
  font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.12;letter-spacing:-.02em;font-weight:800;
  color:var(--brand-900);max-width:20em;
}
.head-sub{margin-top:14px;font-size:17px;color:var(--ink-600);max-width:44em}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;align-items:center}

/* ============ 板块通用 ============ */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:92px 0}}
.section-alt{background:var(--surface)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.24;letter-spacing:-.01em;font-weight:800;color:var(--brand-900)}
.section-head p{margin-top:8px;font-size:15px;color:var(--ink-600);max-width:46em}
.more-link{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;transition:gap .25s var(--ease),color .25s var(--ease)}
.more-link:hover{color:var(--brand-900);gap:10px}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:1fr;gap:14px;grid-auto-rows:180px}
@media (min-width:640px){.wall{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){
  .wall{grid-template-columns:repeat(6,1fr);gap:16px;grid-auto-rows:168px}
  .wall-item.w-a{grid-column:span 3;grid-row:span 2}
  .wall-item.w-b{grid-column:span 3}
  .wall-item.w-c{grid-column:span 3}
  .wall-item.w-d{grid-column:span 2}
  .wall-item.w-e{grid-column:span 2}
  .wall-item.w-f{grid-column:span 2}
}
@media (max-width:1023px){
  .wall-item:first-child{grid-column:span 1}
}
@media (min-width:640px) and (max-width:1023px){
  .wall-item:first-child{grid-column:span 2}
}
.wall-item{
  position:relative;overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);
  background:var(--surface-2);min-height:180px;
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.wall-item:hover img{transform:scale(1.03)}
.wall-cap{
  position:absolute;inset:auto 10px 10px 10px;display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:8px 12px;border-radius:10px;background:rgba(10,42,36,.78);backdrop-filter:blur(4px);color:#fff;
}
.wall-cap b{font-size:14px;font-weight:600;letter-spacing:-.01em}
.wall-cap span{font-size:11px;color:var(--lime-400);font-family:ui-monospace,Menlo,Consolas,monospace}
.wall-cap.w-plain{background:var(--surface);border:1px solid var(--line);color:var(--ink-900)}
.wall-cap.w-plain span{color:var(--brand-500)}
.wall-item .corner{
  position:absolute;top:10px;left:10px;padding:3px 10px;border-radius:var(--r-pill);
  font-size:11px;font-weight:600;background:var(--lime-400);color:var(--ink-900);
}
.wall-item .corner.c-dark{background:rgba(10,42,36,.82);color:#fff}

/* ============ 公告速览列表 ============ */
.log-list{border-top:1px solid var(--line)}
.log-row{
  display:grid;grid-template-columns:1fr;gap:6px;padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),padding .25s var(--ease);
}
@media (min-width:768px){
  .log-row{grid-template-columns:110px 1fr auto;align-items:center;gap:20px}
}
.log-row:hover{background:var(--surface-2);padding-left:10px;padding-right:10px}
.log-date{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:var(--ink-400);letter-spacing:.02em}
.log-main b{display:block;font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:4px;letter-spacing:-.01em}
.log-main p{font-size:14px;color:var(--ink-600);line-height:1.7}
.log-side{display:flex;align-items:center;gap:10px;justify-content:flex-start}
@media (min-width:768px){.log-side{justify-content:flex-end}}
.log-arrow{color:var(--brand-500);font-size:16px;transition:transform .25s var(--ease)}
.log-row:hover .log-arrow{transform:translateX(4px)}

/* ============ 编号条 ============ */
.num-list{border-top:1px solid var(--line)}
.num-item{
  display:grid;grid-template-columns:52px 1fr;gap:16px;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),padding .25s var(--ease);
}
.num-item:hover{background:var(--surface-2);padding-left:10px;padding-right:10px}
.num-item .idx{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;color:var(--brand-500);letter-spacing:.08em;padding-top:3px}
.num-item h3{font-size:17px;font-weight:700;color:var(--brand-900);margin-bottom:6px;letter-spacing:-.01em}
.num-item p{font-size:15px;color:var(--ink-600);line-height:1.8}
@media (min-width:768px){
  .num-item{grid-template-columns:80px 1fr;gap:24px}
}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;text-align:left;font-size:16px;font-weight:700;color:var(--brand-900);
  transition:color .25s var(--ease),padding .25s var(--ease);
}
.faq-q:hover{color:var(--brand-500)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:15px;line-height:1;
  transition:transform .32s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--lime-400);border-color:var(--lime-400);color:var(--ink-900);transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease)}
.faq-a > div{overflow:hidden}
.faq-a p{font-size:15px;color:var(--ink-600);padding:0 4px 22px;max-width:60em;line-height:1.85}
.faq-item.is-open .faq-a{grid-template-rows:1fr}

/* ============ CTA 条 ============ */
.cta-band{background:var(--brand-900);color:#fff;padding:44px 0}
@media (min-width:1024px){.cta-band{padding:60px 0}}
.cta-flex{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-flex h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;letter-spacing:-.01em;line-height:1.3}
.cta-flex h2 em{font-style:normal;color:var(--lime-400)}
.cta-flex p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.cta-clock{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
.cta-clock b{color:var(--lime-400);font-family:ui-monospace,Menlo,Consolas,monospace;letter-spacing:.04em}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.site-footer .logo{color:#fff}
.site-footer .logo-tag{color:var(--lime-400);border-color:rgba(185,242,39,.4);background:rgba(185,242,39,.1)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:30em}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:-.01em}
.footer-links li{margin-bottom:10px}
.footer-contact li{margin-bottom:10px;font-size:14px;display:flex;gap:8px;line-height:1.7}
.footer-contact b{color:rgba(255,255,255,.45);font-weight:500;flex:none;min-width:34px}
.footer-links a,.footer-bottom a,.link-f{
  color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-links a:hover,.footer-bottom a:hover,.link-f:hover{color:var(--lime-400);transform:translateX(2px)}
.sub-form{display:flex;gap:8px;margin-top:16px}
.sub-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-input);padding:10px 12px;color:#fff;font-size:14px;transition:border-color .25s var(--ease);
}
.sub-form input::placeholder{color:rgba(255,255,255,.45)}
.sub-form input:focus{border-color:var(--lime-400);outline:none}
.sub-form input.is-error{border-color:var(--amber-500);box-shadow:inset 3px 0 0 var(--amber-500)}
.form-note{margin-top:8px;font-size:12.5px;color:var(--amber-500);min-height:18px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
.to-top{font-weight:600}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition-duration:.01ms!important}
}