/* roulang page: index */
:root {
  --primary: #16A34A;
  --primary-dark: #14532D;
  --accent: #A3E635;
  --bg: #F8FAF8;
  --card: #FFFFFF;
  --text: #1A2E1A;
  --text-muted: #4A5D4A;
  --border: #E2E8E2;
  --radius-lg: 24px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(20,83,45,.08);
  --shadow-hover: 0 8px 32px rgba(20,83,45,.14);
  --shadow-badge: 0 6px 16px rgba(20,83,45,.2);
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;object-fit:cover}
a{text-decoration:none;color:inherit;transition:color .2s ease}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:520px){.container{padding:0 16px}}
section{padding:88px 0}
@media(max-width:768px){section{padding:60px 0}}

/* ---------- 头部导航 ---------- */
.site-header{padding:24px 0 0;position:relative;z-index:50}
.nav-panel{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-badge{width:40px;height:40px;border-radius:12px;background:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:15px;letter-spacing:.02em}
.brand-text{font-weight:700;font-size:1.2rem;color:var(--primary-dark);letter-spacing:-.01em}
.nav-menu{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-link{font-size:.9rem;font-weight:500;color:var(--text-muted);padding:10px 18px;border-radius:14px;transition:all .2s ease;position:relative}
.nav-link:hover{background:rgba(22,163,74,.08);color:var(--primary)}
.nav-link.active{background:rgba(22,163,74,.12);color:var(--primary-dark);font-weight:600}
.nav-cta{background:var(--accent);color:var(--primary-dark);font-weight:700;font-size:.9rem;padding:10px 22px;border-radius:var(--radius-pill);transition:all .25s ease;box-shadow:0 2px 8px rgba(163,230,53,.35);white-space:nowrap}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(163,230,53,.4)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary-dark);border-radius:2px}
@media(max-width:768px){
  .nav-panel{padding:12px 14px}
  .nav-toggle{display:flex}
  .nav-menu{display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding-top:12px;border-top:1px solid var(--border);margin-top:4px}
  .nav-menu.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:12px}
  .nav-cta{margin-left:auto}
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:60px 0 88px;background:linear-gradient(135deg,#14532D,#16A34A);overflow:hidden}
@media(max-width:768px){.hero{padding:40px 0 60px}}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:24px 24px}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(163,230,53,.16) 0%,transparent 320px)}
.hero-ring{position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;border:1px solid rgba(255,255,255,.14);pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:55% 45%;gap:60px;align-items:center}
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr;gap:44px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:.8rem;font-weight:500;padding:6px 16px;border-radius:var(--radius-pill);margin-bottom:20px;backdrop-filter:blur(4px)}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero h1{font-size:clamp(2.25rem,5vw,3.75rem);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.15;margin-bottom:18px}
.hero h1 .hl{color:var(--accent);position:relative}
.hero-subtitle{font-size:1.125rem;color:rgba(255,255,255,.85);max-width:520px;margin-bottom:32px;line-height:1.8}
.hero-ctas{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:600;border-radius:var(--radius-pill);transition:all .25s ease;white-space:nowrap}
.btn-accent{background:var(--accent);color:var(--primary-dark);padding:14px 32px;font-size:1rem;box-shadow:0 4px 14px rgba(163,230,53,.3)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(163,230,53,.4);filter:brightness(1.05)}
.btn-ghost{background:transparent;color:#fff;padding:13px 30px;font-size:1rem;border:1px solid rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.hero-stats{display:flex;gap:16px;flex-wrap:wrap}
.stat-badge{background:linear-gradient(135deg,rgba(20,83,45,.7),rgba(22,163,74,.4));border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:14px 22px;text-align:center;min-width:120px;box-shadow:0 6px 16px rgba(20,83,45,.25)}
.stat-num{font-size:1.7rem;font-weight:800;color:var(--accent);font-feature-settings:"tnum";display:block;line-height:1.2}
.stat-label{font-size:.8rem;color:rgba(255,255,255,.8);margin-top:2px}
.hero-image{position:relative}
.hero-image img{width:100%;border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,.3);aspect-ratio:4/3;object-fit:cover;background:linear-gradient(135deg,#d1d5db,#f3f4f6)}
.floating-card{position:absolute;bottom:-18px;left:-18px;background:#fff;border-radius:16px;padding:14px 20px;box-shadow:var(--shadow-badge);display:flex;align-items:center;gap:12px}
.floating-card .fc-icon{width:38px;height:38px;border-radius:10px;background:rgba(22,163,74,.12);display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.floating-card .fc-text{font-size:.8rem;color:var(--text-muted);line-height:1.4}
.floating-card .fc-text strong{display:block;font-size:.95rem;color:var(--text)}
@media(max-width:640px){.floating-card{left:8px;bottom:-14px}.hero-stats{gap:10px}.stat-badge{min-width:100px;padding:10px 16px}.stat-num{font-size:1.3rem}}

/* ---------- 品牌故事 ---------- */
.story{background:var(--bg)}
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
@media(max-width:900px){.story-grid{grid-template-columns:1fr;gap:44px}}
.story-image{position:relative;min-height:360px;border-radius:var(--radius-lg);overflow:hidden;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;box-shadow:var(--shadow)}
.story-image::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,83,45,.1),rgba(20,83,45,.3))}
.story-card{position:absolute;bottom:24px;left:24px;right:24px;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-radius:16px;padding:18px 22px;border:1px solid rgba(255,255,255,.6)}
.story-card span{font-weight:700;color:var(--primary-dark);font-size:.9rem;display:block;margin-bottom:4px}
.story-card p{font-size:.85rem;color:var(--text-muted);line-height:1.6}
.story-content h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1.3;margin-bottom:18px}
.story-content p{font-size:1rem;color:var(--text-muted);margin-bottom:16px;max-width:520px}
.story-divider{width:56px;height:4px;background:var(--primary);border-radius:4px;margin:28px 0}
.story-stats{display:flex;gap:28px}
.mini-stat{text-align:left}
.mini-num{font-size:1.6rem;font-weight:800;color:var(--primary);font-feature-settings:"tnum";display:block}
.mini-label{font-size:.85rem;color:var(--text-muted)}
@media(max-width:768px){.story-image{min-height:260px}}

/* ---------- 板块标题 ---------- */
.section-head{text-align:center;margin-bottom:52px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:var(--text);letter-spacing:-.01em;line-height:1.3}
.section-head p{font-size:1rem;color:var(--text-muted);margin-top:10px}

/* ---------- 精选卡片 ---------- */
.featured{background:#fff}
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:1024px){.featured-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.featured-grid{grid-template-columns:1fr}}
.feature-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s ease;box-shadow:var(--shadow)}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(22,163,74,.4)}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg,#e5e7eb,#f9fafb)}
.feature-card-body{padding:24px}
.card-tag{display:inline-block;background:rgba(22,163,74,.1);color:var(--primary);font-size:.78rem;font-weight:600;padding:4px 14px;border-radius:var(--radius-pill);margin-bottom:12px}
.feature-card h3{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.4}
.feature-card p{font-size:.9rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.card-link{font-size:.9rem;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease}
.card-link:hover{gap:10px;color:var(--primary-dark)}

/* ---------- 资讯列表 ---------- */
.news{background:var(--bg)}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-row{display:flex;align-items:center;gap:24px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:22px 28px;transition:all .25s ease;box-shadow:0 2px 8px rgba(20,83,45,.03)}
.news-row:hover{background:#F0FAF0;border-left:4px solid var(--primary);box-shadow:var(--shadow);transform:translateX(4px)}
.news-row-info{flex:1;min-width:0}
.news-tag{display:inline-block;background:rgba(22,163,74,.1);color:var(--primary);font-size:.75rem;font-weight:600;padding:2px 12px;border-radius:var(--radius-pill);margin-bottom:6px}
.news-row h3{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-row p{font-size:.85rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-row-date{font-size:.85rem;color:var(--text-muted);white-space:nowrap;font-feature-settings:"tnum"}
.news-row-arrow{font-size:1.1rem;color:var(--primary);transition:transform .2s ease;flex-shrink:0}
.news-row:hover .news-row-arrow{transform:translateX(4px)}
.news-empty{background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);padding:60px 24px;text-align:center}
.news-empty-icon{font-size:2.4rem;display:block;margin-bottom:12px}
.news-empty p{color:var(--text-muted);font-size:.95rem}
@media(max-width:768px){
  .news-row{flex-wrap:wrap;padding:18px 20px;gap:12px}
  .news-row-date{display:none}
  .news-row-info{flex:1 1 100%}
  .news-row-arrow{margin-left:auto}
}

/* ---------- 信任背书 ---------- */
.trust{background:linear-gradient(135deg,#14532D,#0F3D22);position:relative;overflow:hidden}
.trust::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:32px 32px}
.trust-content{position:relative;z-index:2}
.trust-head{text-align:center;margin-bottom:48px}
.trust-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:#fff;letter-spacing:-.01em}
.trust-head p{color:rgba(255,255,255,.7);margin-top:10px;font-size:1rem}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:48px}
@media(max-width:900px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.trust-grid{grid-template-columns:1fr}}
.trust-stat{background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:28px 20px;text-align:center;transition:transform .25s ease}
.trust-stat:hover{transform:translateY(-4px)}
.trust-num{font-size:2rem;font-weight:800;color:var(--accent);font-feature-settings:"tnum";display:block;line-height:1.2}
.trust-label{font-size:.88rem;color:rgba(255,255,255,.75);margin-top:6px}
.trust-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;align-items:center}
.trust-logos span{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.55);font-size:.8rem;padding:8px 18px;border-radius:var(--radius-pill);font-weight:500}

/* ---------- FAQ ---------- */
.faq{background:#fff}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item.active{box-shadow:var(--shadow);border-color:rgba(22,163,74,.35)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:22px 26px;font-size:1.05rem;font-weight:600;color:var(--text);text-align:left;transition:background .2s ease}
.faq-q:hover{background:rgba(22,163,74,.03)}
.faq-icon{font-size:1.4rem;color:var(--primary);font-weight:400;transition:transform .3s ease;flex-shrink:0;margin-left:16px}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.active .faq-a{max-height:300px}
.faq-a p{padding:0 26px 22px;font-size:.925rem;color:var(--text-muted);line-height:1.75}

/* ---------- CTA ---------- */
.cta{background:var(--bg)}
.cta-card{background:linear-gradient(135deg,#14532D,#16A34A);border-radius:32px;padding:64px 48px;position:relative;overflow:hidden}
.cta-card::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 20%,rgba(163,230,53,.14) 0%,transparent 260px)}
@media(max-width:640px){.cta-card{padding:44px 24px;border-radius:24px}}
.cta-card h2{font-size:clamp(1.4rem,2.5vw,2rem);font-weight:700;color:#fff;letter-spacing:-.01em;margin-bottom:14px}
.cta-card p{color:rgba(255,255,255,.8);font-size:1rem;margin-bottom:32px;max-width:520px}
.cta-form{display:flex;gap:12px;max-width:520px;flex-wrap:wrap}
.cta-form input{flex:1;min-width:220px;background:#fff;border:none;border-radius:var(--radius-pill);padding:14px 24px;font-size:.95rem;outline:none;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.cta-form input:focus{box-shadow:0 0 0 3px rgba(163,230,53,.4)}
.cta-form .btn-accent{padding:14px 30px}
.cta-note{font-size:.75rem;color:rgba(255,255,255,.6);margin-top:20px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.footer{background:#14532D;color:rgba(255,255,255,.7);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:48px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-brand .footer-logo{font-size:1.3rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .footer-logo .brand-badge{width:36px;height:36px;font-size:13px}
.footer-brand p{font-size:.88rem;line-height:1.7;max-width:300px}
.footer-col h4{font-size:.9rem;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col a{display:block;font-size:.88rem;padding:6px 0;color:rgba(255,255,255,.65)}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:.85rem;padding:5px 0;color:rgba(255,255,255,.65)}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social span{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:.85rem;color:rgba(255,255,255,.75);transition:background .2s ease}
.footer-social span:hover{background:rgba(163,230,53,.2);color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.45)}

/* roulang page: category1 */
:root {
    --primary: #16A34A;
    --primary-dark: #14532D;
    --accent: #A3E635;
    --bg: #F8FAF8;
    --card: #FFFFFF;
    --text: #1A2E1A;
    --text-muted: #4A5D4A;
    --border: #E2E8E2;
    --radius-lg: 24px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --radius-pill: 999px;
    --shadow-default: 0 4px 20px rgba(20, 83, 45, 0.08);
    --shadow-hover: 0 8px 32px rgba(20, 83, 45, 0.14);
    --shadow-badge: 0 6px 16px rgba(20, 83, 45, 0.2);
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  .section { padding: 96px 0; }
  .section-tight { padding: 64px 0; }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 16px;
    z-index: 100;
    padding: 0 16px;
    margin-top: 16px;
  }
  .nav-panel {
    display: flex;
    align-items: center;
    gap: 32px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-md);
    padding: 12px 24px;
    box-shadow: var(--shadow-default);
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: box-shadow 0.3s ease;
  }
  .nav-panel:hover { box-shadow: var(--shadow-hover); }
  .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand-badge {
    width: 40px; height: 40px;
    background: var(--primary-dark);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 15px;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 8px rgba(20, 83, 45, 0.3);
  }
  .brand-text { font-weight: 800; font-size: 20px; letter-spacing: -0.02em; color: var(--text); }
  .nav-menu { display: flex; align-items: center; gap: 8px; margin-left: auto; }
  .nav-link {
    display: inline-flex; align-items: center;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 600;
    color: var(--text-muted);
    transition: all 0.25s ease;
  }
  .nav-link:hover { background: rgba(22, 163, 74, 0.08); color: var(--primary); }
  .nav-link.active { background: rgba(22, 163, 74, 0.12); color: var(--primary); }
  .nav-cta {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--accent);
    color: var(--primary-dark);
    font-weight: 700;
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    transition: all 0.25s ease;
  }
  .nav-cta:hover { background: #d9f26b; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(163, 230, 53, 0.4); }
  .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
  .nav-toggle span { width: 24px; height: 2.5px; background: var(--text); border-radius: 4px; transition: all 0.3s ease; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    background: linear-gradient(135deg, #14532D 0%, #16A34A 100%);
    padding: 110px 0 120px;
    overflow: hidden;
  }
  .hero::before {
    content: "";
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 24px 24px;
  }
  .hero::after {
    content: "";
    position: absolute;
    top: -120px; right: -80px;
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(163, 230, 53, 0.28) 0%, transparent 70%);
    border-radius: 50%;
  }
  .hero-ring {
    position: absolute;
    left: -220px; bottom: -280px;
    width: 560px; height: 560px;
    border: 2px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
  }
  .hero .container { position: relative; z-index: 2; }
  .hero-grid {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: 64px;
    align-items: center;
  }
  .hero-title {
    color: #fff;
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
  }
  .hero-title .highlight {
    color: var(--accent);
    position: relative;
    white-space: nowrap;
  }
  .hero-subtitle {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.125rem;
    line-height: 1.75;
    margin-bottom: 36px;
    max-width: 540px;
  }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
  .btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--accent);
    color: var(--primary-dark);
    font-weight: 700;
    padding: 14px 36px;
    border-radius: var(--radius-pill);
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
  }
  .btn-primary:hover { background: #d9f26b; transform: translateY(-2px); box-shadow: 0 8px 26px rgba(163, 230, 53, 0.35); }
  .btn-outline {
    display: inline-flex; align-items: center; justify-content: center;
    background: transparent;
    color: #fff;
    font-weight: 600;
    padding: 14px 36px;
    border-radius: var(--radius-pill);
    font-size: 16px;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
  }
  .btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
  .hero-stats { display: flex; gap: 16px; flex-wrap: wrap; }
  .stat-badge {
    background: linear-gradient(145deg, #14532D, #166534);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 18px 26px;
    min-width: 140px;
    box-shadow: var(--shadow-badge);
  }
  .stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    font-feature-settings: "tnum";
    line-height: 1.2;
  }
  .stat-label { color: rgba(255, 255, 255, 0.85); font-size: 0.875rem; font-weight: 500; margin-top: 4px; }
  .hero-visual { position: relative; }
  .hero-visual img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    object-fit: cover;
  }
  .float-badge {
    position: absolute;
    bottom: 24px; left: 24px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    border-radius: 16px;
    padding: 14px 22px;
    box-shadow: var(--shadow-hover);
    display: flex; align-items: center; gap: 10px;
  }
  .float-badge .dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 0 4px rgba(163, 230, 53, 0.25); }

  /* ===== Section title ===== */
  .section-title { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; letter-spacing: -0.01em; margin-bottom: 12px; color: var(--text); }
  .section-desc { color: var(--text-muted); font-size: 1rem; max-width: 680px; line-height: 1.75; }
  .section-head { text-align: center; margin-bottom: 56px; }
  .section-head .section-desc { margin-left: auto; margin-right: auto; }

  /* ===== Steps ===== */
  .steps-wrap { counter-reset: steps; }
  .step-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-default);
  }
  .step-item:hover { box-shadow: var(--shadow-hover); border-color: rgba(22, 163, 74, 0.4); transform: translateY(-2px); }
  .step-num {
    width: 56px; height: 56px;
    flex-shrink: 0;
    background: var(--primary-dark);
    color: var(--accent);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 800;
    font-feature-settings: "tnum";
    box-shadow: 0 6px 16px rgba(20, 83, 45, 0.2);
  }
  .step-body h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
  .step-body p { color: var(--text-muted); font-size: 0.9375rem; line-height: 1.65; }

  /* ===== Split features ===== */
  .split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 48px;
  }
  .split-grid.reverse .split-media { order: 2; }
  .split-grid.reverse .split-content { order: 1; }
  .split-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-hover); object-fit: cover; }
  .split-tag {
    display: inline-flex; align-items: center;
    background: rgba(22, 163, 74, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    font-size: 0.875rem; font-weight: 600;
    margin-bottom: 16px;
  }
  .split-content h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; letter-spacing: -0.01em; margin-bottom: 16px; color: var(--text); }
  .split-content p { color: var(--text-muted); margin-bottom: 16px; }
  .split-list { list-style: none; margin-top: 12px; }
  .split-list li {
    padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--text);
    font-size: 0.9375rem;
  }
  .split-list li::before {
    content: "";
    position: absolute; left: 0; top: 9px;
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(163, 230, 53, 0.2);
  }

  /* ===== Login method cards ===== */
  .method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .method-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-default);
  }
  .method-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(22, 163, 74, 0.4); transform: translateY(-3px); }
  .method-icon {
    width: 56px; height: 56px;
    margin: 0 auto 16px;
    background: rgba(22, 163, 74, 0.1);
    color: var(--primary);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 700;
  }
  .method-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
  .method-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; }

  /* ===== FAQ ===== */
  .faq-wrap { max-width: 820px; margin: 0 auto; }
  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    padding: 24px 28px;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    box-shadow: var(--shadow-default);
  }
  .faq-item:hover { box-shadow: var(--shadow-hover); }
  .faq-q { display: flex; align-items: center; justify-content: space-between; cursor: pointer; gap: 16px; }
  .faq-q h3 { font-size: 1.125rem; font-weight: 600; color: var(--text); }
  .faq-icon {
    width: 32px; height: 32px;
    flex-shrink: 0;
    background: rgba(22, 163, 74, 0.1);
    color: var(--primary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; font-weight: 600;
    transition: transform 0.3s ease, background 0.3s ease;
  }
  .faq-icon.open { transform: rotate(45deg); background: var(--accent); color: var(--primary-dark); }
  .faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, margin-top 0.35s ease; margin-top: 0; }
  .faq-a-inner { padding-top: 16px; color: var(--text-muted); font-size: 0.9375rem; line-height: 1.7; }

  /* ===== CTA ===== */
  .cta-box {
    background: linear-gradient(135deg, #14532D 0%, #16A34A 100%);
    border-radius: 32px;
    padding: 64px 56px;
    position: relative;
    overflow: hidden;
  }
  .cta-box::before {
    content: "";
    position: absolute; top: -80px; right: -40px;
    width: 260px; height: 260px;
    background: radial-gradient(circle, rgba(163, 230, 53, 0.25), transparent 70%);
  }
  .cta-box h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; margin-bottom: 12px; }
  .cta-box p { color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; max-width: 560px; }
  .cta-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
  .cta-input {
    padding: 14px 24px;
    border-radius: var(--radius-pill);
    border: none;
    font-size: 15px;
    min-width: 320px;
    color: var(--text);
    background: #fff;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
    outline: none;
    transition: box-shadow 0.3s ease;
  }
  .cta-input:focus { box-shadow: 0 0 0 4px rgba(163, 230, 53, 0.35); }
  .cta-note { margin-top: 20px; font-size: 0.75rem; color: rgba(255, 255, 255, 0.6); }

  /* ===== Footer ===== */
  .footer { background: #14532D; color: rgba(255, 255, 255, 0.7); padding: 72px 0 0; margin-top: 24px; }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.25rem; font-weight: 700; margin-bottom: 16px; }
  .footer-brand p { font-size: 0.9375rem; line-height: 1.7; max-width: 300px; }
  .footer-social { display: flex; gap: 10px; margin-top: 20px; }
  .footer-social span {
    width: 40px; height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.875rem; color: #fff;
    cursor: default;
    transition: all 0.3s ease;
  }
  .footer-social span:hover { background: var(--accent); color: var(--primary-dark); }
  .footer-col h4 { color: #fff; font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; }
  .footer-col a { display: block; color: rgba(255, 255, 255, 0.65); font-size: 0.9375rem; margin-bottom: 10px; transition: color 0.25s ease; }
  .footer-col a:hover { color: var(--accent); }
  .footer-col p { font-size: 0.9rem; margin-bottom: 8px; }
  .footer-bottom {
    padding: 24px 0;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 8px;
    font-size: 0.875rem;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { max-width: 560px; }
    .method-grid { grid-template-columns: repeat(2, 1fr); }
    .split-grid { grid-template-columns: 1fr; gap: 32px; }
    .split-grid.reverse .split-media { order: 1; }
    .split-grid.reverse .split-content { order: 2; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 768px) {
    .section { padding: 64px 0; }
    .nav-panel { flex-wrap: wrap; gap: 12px; }
    .nav-menu {
      display: none;
      width: 100%;
      flex-direction: column;
      align-items: stretch;
      gap: 6px;
      padding: 12px 0 4px;
      border-top: 1px solid var(--border);
      margin-top: 4px;
    }
    .nav-menu.open { display: flex; }
    .nav-link { justify-content: flex-start; padding: 12px 16px; }
    .nav-cta { margin-left: auto; }
    .nav-toggle { display: flex; }
    .hero { padding: 80px 0 80px; }
    .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; }
    .cta-box { padding: 40px 24px; border-radius: 24px; }
    .cta-input { min-width: 100%; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .step-item { flex-direction: column; gap: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
  }
  @media (max-width: 520px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .site-header { top: 8px; margin-top: 8px; }
    .method-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; }
    .stat-badge { text-align: center; }
    .brand-text { font-size: 18px; }
    .nav-panel { padding: 12px 16px; }
  }

/* roulang page: category2 */
:root {
      --primary: #16A34A;
      --primary-dark: #15803D;
      --deep: #14532D;
      --deep-2: #0F3D22;
      --accent: #A3E635;
      --bg: #F8FAF8;
      --card: #FFFFFF;
      --text: #1A2E1A;
      --text-sub: #4A5D4A;
      --border: #E2E8E2;
      --radius-lg: 24px;
      --radius-md: 20px;
      --radius-sm: 14px;
      --shadow: 0 4px 20px rgba(20, 83, 45, 0.08);
      --shadow-hover: 0 8px 32px rgba(20, 83, 45, 0.14);
      --shadow-badge: 0 6px 16px rgba(20, 83, 45, 0.2);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: #F3F7F3;
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== 导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(243, 247, 243, 0.85);
      backdrop-filter: blur(12px);
      padding: 12px 0 6px;
    }

    .nav-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-md);
      padding: 12px 20px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(226, 232, 226, 0.8);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--deep);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      letter-spacing: 1px;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--deep);
      letter-spacing: -0.01em;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #F3F6F3;
      border-radius: var(--radius-sm);
      padding: 10px 16px;
      color: var(--text);
      font-weight: 600;
      font-size: 0.875rem;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }

    .nav-link:hover {
      background: rgba(22, 163, 74, 0.1);
      color: var(--primary);
    }

    .nav-link.active {
      background: rgba(22, 163, 74, 0.12);
      color: var(--primary);
      border-color: rgba(22, 163, 74, 0.2);
    }

    .nav-link i {
      font-size: 0.875rem;
    }

    .nav-cta {
      background: var(--accent);
      color: var(--deep);
      font-weight: 800;
      font-size: 0.875rem;
      padding: 10px 24px;
      border-radius: 999px;
      transition: all 0.25s ease;
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .nav-cta:hover {
      filter: brightness(1.05);
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(163, 230, 53, 0.4);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      padding: 10px;
      cursor: pointer;
      border-radius: 10px;
    }

    .nav-toggle span {
      width: 24px;
      height: 2px;
      background: var(--deep);
      border-radius: 2px;
      transition: all 0.3s ease;
    }

    /* ===== 通用区块 ===== */
    .section {
      padding: 72px 0;
    }

    .section-title {
      font-size: clamp(1.5rem, 3vw, 2.25rem);
      font-weight: 800;
      letter-spacing: -0.01em;
      color: var(--text);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-sub {
      font-size: 1rem;
      color: var(--text-sub);
      max-width: 680px;
      margin-bottom: 40px;
      line-height: 1.7;
    }

    /* ===== Hero ===== */
    .hero {
      position: relative;
      color: #fff;
      border-radius: 32px;
      margin: 24px 0 72px;
      overflow: hidden;
      background: linear-gradient(135deg, var(--deep) 0%, var(--primary) 100%);
      box-shadow: 0 12px 48px rgba(20, 83, 45, 0.25);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
      background-size: 24px 24px;
      pointer-events: none;
    }

    .hero::after {
      content: "";
      position: absolute;
      top: -120px;
      right: -80px;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(163, 230, 53, 0.18) 0%, transparent 70%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 55% 45%;
      gap: 32px;
      align-items: center;
      padding: 56px 48px;
    }

    .hero-title {
      font-size: clamp(2.25rem, 5vw, 3.5rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.15;
      margin-bottom: 20px;
    }

    .hero-title .highlight {
      color: var(--accent);
      border-bottom: 3px solid rgba(163, 230, 53, 0.5);
    }

    .hero-sub {
      font-size: 1.125rem;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 32px;
      max-width: 520px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 700;
      font-size: 0.9375rem;
      padding: 14px 32px;
      border-radius: 999px;
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--deep);
    }

    .btn-primary:hover {
      filter: brightness(1.05);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(163, 230, 53, 0.35);
    }

    .btn-outline {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255, 255, 255, 0.5);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #fff;
    }

    .hero-stats {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .hero-stat {
      background: linear-gradient(135deg, rgba(20, 83, 45, 0.9), rgba(22, 163, 74, 0.7));
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 16px;
      padding: 14px 20px;
      min-width: 110px;
      box-shadow: var(--shadow-badge);
    }

    .hero-stat .num {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--accent);
      font-feature-settings: "tnum";
      line-height: 1.2;
    }

    .hero-stat .label {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.85);
      margin-top: 2px;
    }

    .hero-media {
      position: relative;
    }

    .hero-media img {
      width: 100%;
      height: 340px;
      object-fit: cover;
      border-radius: var(--radius-lg);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
      background: linear-gradient(145deg, #E8F5E9, #F1F8E9);
    }

    .hero-float {
      position: absolute;
      bottom: -16px;
      left: -16px;
      background: rgba(255, 255, 255, 0.96);
      color: var(--text);
      border-radius: 16px;
      padding: 12px 18px;
      font-size: 0.875rem;
      font-weight: 700;
      box-shadow: var(--shadow-hover);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hero-float i {
      color: var(--primary);
      font-size: 1.125rem;
    }

    /* ===== 核心安全特性 ===== */
    .features-section {
      background: var(--bg);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      transition: all 0.3s ease;
      box-shadow: var(--shadow);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(22, 163, 74, 0.4);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      background: rgba(22, 163, 74, 0.1);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 18px;
    }

    .feature-card h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text);
    }

    .feature-card p {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.65;
    }

    /* ===== 图文交错 ===== */
    .split-section {
      background: #fff;
      border-radius: 32px;
      padding: 72px 0;
      margin: 24px 0;
    }

    .split-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      padding: 32px 0;
    }

    .split-media img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-hover);
      background: linear-gradient(145deg, #F0F9F0, #ECFDF5);
    }

    .split-content h2 {
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 800;
      letter-spacing: -0.01em;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .split-content p {
      color: var(--text-sub);
      margin-bottom: 20px;
      line-height: 1.75;
    }

    .split-list {
      list-style: none;
    }

    .split-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 0;
      font-weight: 500;
      font-size: 0.9375rem;
    }

    .split-list li i {
      color: var(--primary);
      background: rgba(22, 163, 74, 0.1);
      border-radius: 50%;
      width: 24px;
      height: 24px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      flex-shrink: 0;
    }

    /* ===== 步骤流程 ===== */
    .steps-section {
      background: linear-gradient(180deg, #F0FAF0 0%, #F8FDF8 100%);
      border-radius: 32px;
      padding: 72px 0;
      margin: 24px 0;
    }

    .steps-wrap {
      max-width: 760px;
      margin: 0 auto;
    }

    .step-item {
      display: flex;
      gap: 20px;
      align-items: flex-start;
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 28px 28px;
      margin-bottom: 16px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: all 0.3s ease;
    }

    .step-item:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(22, 163, 74, 0.3);
    }

    .step-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--deep);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.125rem;
      flex-shrink: 0;
      box-shadow: 0 4px 12px rgba(20, 83, 45, 0.2);
    }

    .step-body h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .step-body p {
      font-size: 0.9375rem;
      color: var(--text-sub);
      line-height: 1.65;
    }

    /* ===== 适用场景 ===== */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid var(--border);
      text-align: center;
      transition: all 0.25s ease;
      box-shadow: var(--shadow);
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(22, 163, 74, 0.35);
    }

    .scenario-card i {
      font-size: 1.75rem;
      color: var(--primary);
      margin-bottom: 14px;
      background: rgba(22, 163, 74, 0.1);
      width: 56px;
      height: 56px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .scenario-card h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .scenario-card p {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 820px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 24px;
      margin-bottom: 12px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: all 0.25s ease;
    }

    .faq-item.open {
      border-color: rgba(22, 163, 74, 0.35);
      box-shadow: var(--shadow-hover);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1.0625rem;
      font-weight: 600;
      color: var(--text);
      gap: 16px;
    }

    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(22, 163, 74, 0.1);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      font-weight: 700;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }

    .faq-item.open .faq-answer {
      max-height: 320px;
    }

    .faq-answer p {
      padding-top: 16px;
      font-size: 0.9375rem;
      color: var(--text-sub);
      line-height: 1.7;
      border-top: 1px solid #F0F4F0;
    }

    /* ===== CTA ===== */
    .cta-panel {
      background: linear-gradient(135deg, var(--deep) 0%, var(--primary) 100%);
      border-radius: 32px;
      padding: 64px 48px;
      position: relative;
      overflow: hidden;
      color: #fff;
      box-shadow: 0 16px 48px rgba(20, 83, 45, 0.25);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -60px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(163, 230, 53, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }

    .cta-panel h2 {
      font-size: clamp(1.75rem, 4vw, 2.5rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 12px;
      position: relative;
      z-index: 2;
    }

    .cta-panel h2 .arrow {
      color: var(--accent);
    }

    .cta-panel p {
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 28px;
      position: relative;
      z-index: 2;
      max-width: 600px;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      position: relative;
      z-index: 2;
    }

    .cta-note {
      font-size: 0.75rem;
      color: rgba(255, 255, 255, 0.6);
      margin-top: 20px;
      position: relative;
      z-index: 2;
    }

    /* ===== 页脚 ===== */
    .footer {
      background: var(--deep);
      color: rgba(255, 255, 255, 0.7);
      margin-top: 72px;
      padding: 64px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 0.875rem;
      line-height: 1.65;
      margin-bottom: 20px;
      max-width: 300px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social span {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.08);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8125rem;
      font-weight: 600;
      color: #fff;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .footer-social span:hover {
      background: var(--accent);
      color: var(--deep);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 0.875rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col a {
      display: block;
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.875rem;
      padding: 6px 0;
      transition: color 0.2s ease;
    }

    .footer-col a:hover {
      color: var(--accent);
    }

    .footer-col p {
      font-size: 0.875rem;
      padding: 4px 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom p {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.55);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .hero-grid {
        grid-template-columns: 1fr;
        padding: 40px 32px;
      }

      .hero-media {
        max-width: 520px;
      }

      .split-row {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .split-row .split-media {
        order: 2;
      }

      .split-row:nth-child(even) .split-media {
        order: 2;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 56px 0;
      }

      .nav-toggle {
        display: flex;
      }

      .nav-menu {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 24px;
        right: 24px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(12px);
        border-radius: var(--radius-md);
        padding: 16px;
        box-shadow: var(--shadow-hover);
        flex-direction: column;
        align-items: stretch;
        border: 1px solid var(--border);
      }

      .nav-menu.open {
        display: flex;
      }

      .nav-cta {
        margin-left: auto;
        margin-right: 12px;
      }

      .hero-grid {
        padding: 32px 24px;
      }

      .hero-title {
        font-size: 2rem;
      }

      .hero-stats {
        flex-direction: column;
        width: 100%;
      }

      .hero-stat {
        width: 100%;
      }

      .split-section {
        padding: 48px 0;
      }

      .steps-section {
        padding: 48px 0;
      }

      .cta-panel {
        padding: 40px 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .nav-panel {
        padding: 10px 14px;
      }

      .brand-text {
        font-size: 1.0625rem;
      }

      .nav-cta {
        font-size: 0.8125rem;
        padding: 8px 16px;
      }

      .hero {
        margin-top: 16px;
        border-radius: 24px;
      }

      .hero-grid {
        padding: 28px 20px;
      }

      .hero-title {
        font-size: 1.75rem;
      }

      .hero-actions {
        flex-direction: column;
        width: 100%;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .feature-grid {
        grid-template-columns: 1fr;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
      }

      .step-item {
        padding: 20px;
        flex-direction: column;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .cta-actions {
        flex-direction: column;
        width: 100%;
      }

      .cta-actions .btn {
        width: 100%;
      }

      .split-media img {
        height: 240px;
      }
    }

/* roulang page: article */
:root {
            --primary: #16A34A;
            --primary-dark: #15803D;
            --deep-green: #14532D;
            --accent: #A3E635;
            --bg: #F8FAF8;
            --card-bg: #FFFFFF;
            --text: #1A2E1A;
            --text-secondary: #4A5D4A;
            --border: #E2E8E2;
            --radius-lg: 24px;
            --radius-md: 20px;
            --radius-sm: 14px;
            --shadow: 0 4px 20px rgba(20, 83, 45, 0.08);
            --shadow-hover: 0 8px 32px rgba(20, 83, 45, 0.14);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        /* 容器 */
        div.container {
            max-width: 1200px;
            width: 100%;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 768px) {
            div.container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 顶部导航 ============ */
        .site-header {
            padding: 16px 0;
            background: transparent;
        }

        .nav-panel {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 12px 16px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            background: var(--deep-green);
            color: #fff;
            font-weight: 800;
            border-radius: 12px;
            padding: 6px 12px;
            font-size: 1.125rem;
            letter-spacing: 0.02em;
        }

        .brand-text {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--deep-green);
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 14px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            background: rgba(22, 163, 74, 0.08);
            color: var(--primary);
        }

        .nav-link.active {
            background: rgba(22, 163, 74, 0.12);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--accent);
            color: var(--deep-green);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(163, 230, 53, 0.4);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 8px;
            border-radius: 10px;
            background: rgba(22, 163, 74, 0.06);
            transition: background 0.2s;
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(22, 163, 74, 0.12);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--deep-green);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        @media (max-width: 768px) {
            .nav-panel {
                padding: 10px 12px;
                flex-wrap: nowrap;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: #fff;
                border: 1px solid var(--border);
                border-radius: 20px;
                padding: 12px;
                box-shadow: var(--shadow-hover);
                z-index: 50;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-link {
                text-align: center;
                padding: 12px 16px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 0.8125rem;
            }

            .brand-text {
                font-size: 1.0625rem;
            }

            .nav-toggle {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .brand-badge {
                font-size: 0.9375rem;
                padding: 4px 8px;
                border-radius: 10px;
            }

            .brand-text {
                font-size: 0.9375rem;
            }

            .nav-cta {
                font-size: 0.75rem;
                padding: 6px 12px;
            }

            .nav-toggle {
                padding: 6px;
            }
        }

        /* ============ 面包屑 ============ */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            padding: 36px 0 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--primary-dark);
        }

        .breadcrumb .crumb-sep {
            color: var(--border);
        }

        .breadcrumb .crumb-current {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }

        /* ============ 文章头部 ============ */
        .article-header {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 48px;
            margin: 24px 0 32px;
            box-shadow: var(--shadow);
        }

        .article-tag {
            display: inline-block;
            background: rgba(22, 163, 74, 0.1);
            color: var(--primary);
            border-radius: 999px;
            padding: 4px 16px;
            font-size: 0.8125rem;
            font-weight: 500;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .meta-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-feature-settings: "tnum";
        }

        .meta-source {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-summary {
            margin-top: 28px;
            background: #F0FAF0;
            border-radius: 16px;
            padding: 20px 24px;
            font-size: 0.9375rem;
            line-height: 1.75;
            color: var(--text);
            border-left: 4px solid var(--primary);
        }

        /* ============ 正文阅读区 ============ */
        .article-content {
            max-width: 760px;
            margin: 0 auto 48px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 48px;
            font-size: 1rem;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 2em 0 1em;
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.75em 0 0.75em;
        }

        .article-content p {
            margin: 1.5em 0;
            line-height: 1.8;
        }

        .article-content ul,
        .article-content ol {
            margin: 1.5em 0;
            padding-left: 1.5em;
        }

        .article-content li {
            margin: 0.5em 0;
            line-height: 1.8;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: #F0FAF0;
            padding: 16px 24px;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: var(--text-secondary);
        }

        .article-content img {
            border-radius: 16px;
            margin: 1.5em 0;
            background: linear-gradient(135deg, #F0FAF0, #E8F5E9);
        }

        .article-content pre {
            background: #1A2E1A;
            color: #E8F5E9;
            border-radius: 16px;
            padding: 20px 24px;
            overflow-x: auto;
            margin: 1.5em 0;
            font-family: "SF Mono", "Fira Code", Consolas, monospace;
            font-size: 0.875rem;
            line-height: 1.7;
        }

        .article-content code {
            background: rgba(22, 163, 74, 0.1);
            color: #15803D;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: 0.875em;
            font-family: "SF Mono", "Fira Code", Consolas, monospace;
        }

        .article-content pre code {
            background: none;
            color: inherit;
            padding: 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 0.9375rem;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--border);
            padding: 12px 14px;
            text-align: left;
        }

        .article-content th {
            background: #F0FAF0;
            font-weight: 600;
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(22, 163, 74, 0.3);
            transition: border-color 0.2s;
        }

        .article-content a:hover {
            border-bottom-color: var(--primary);
        }

        /* ============ 文章尾部 ============ */
        .article-footer {
            max-width: 760px;
            margin: 0 auto 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .tag-group {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-block;
            background: rgba(22, 163, 74, 0.08);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 0.8125rem;
            font-weight: 500;
        }

        .btn-outline {
            display: inline-block;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 999px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(22, 163, 74, 0.08);
            transform: translateY(-2px);
        }

        .btn-solid {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
        }

        .btn-solid:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            padding: 48px 0;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 32px;
            letter-spacing: -0.01em;
            color: var(--text);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s ease;
            display: block;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(22, 163, 74, 0.4);
        }

        .related-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            background: linear-gradient(135deg, #F0FAF0, #E8F5E9);
        }

        .related-body {
            padding: 24px;
        }

        .related-body .article-tag {
            margin-bottom: 12px;
        }

        .related-body h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text);
        }

        .related-body p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-more {
            display: inline-block;
            margin-top: 16px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.875rem;
            transition: transform 0.2s ease;
        }

        .related-card:hover .related-more {
            transform: translateX(4px);
        }

        /* ============ CTA 区块 ============ */
        .cta-section {
            padding: 48px 0 72px;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--deep-green), var(--primary));
            border-radius: 32px;
            padding: 56px 48px;
            color: #fff;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(163, 230, 53, 0.2), transparent 70%);
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            left: -60px;
            bottom: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            pointer-events: none;
        }

        .cta-left {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2.125rem);
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .cta-sub {
            opacity: 0.85;
            font-size: 0.9375rem;
            margin-bottom: 0;
        }

        .cta-right {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 380px;
            position: relative;
            z-index: 1;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            align-items: center;
            width: 100%;
            max-width: 380px;
        }

        .cta-form input {
            border-radius: 999px;
            border: none;
            padding: 12px 24px;
            font-size: 0.9375rem;
            width: 100%;
            outline: none;
            background: #fff;
            color: var(--text);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            transition: box-shadow 0.2s;
        }

        .cta-form input:focus {
            box-shadow: 0 0 0 3px rgba(163, 230, 53, 0.4);
        }

        .cta-form input::placeholder {
            color: var(--text-secondary);
        }

        .cta-form button {
            background: var(--accent);
            color: var(--deep-green);
            border: none;
            border-radius: 999px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .cta-form button:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(163, 230, 53, 0.4);
        }

        .cta-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.8125rem;
            margin-top: 14px;
            display: inline-block;
            transition: color 0.2s;
        }

        .cta-link:hover {
            color: var(--accent);
        }

        /* ============ 页脚 ============ */
        .footer {
            background: var(--deep-green);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand {
            max-width: 320px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            max-width: 280px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social span {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8125rem;
            transition: all 0.2s ease;
            color: rgba(255, 255, 255, 0.8);
        }

        .footer-social span:hover {
            background: var(--accent);
            color: var(--deep-green);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.875rem;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col a {
            display: block;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 12px;
            line-height: 1.6;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-col p {
            font-size: 0.875rem;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ============ 空态提示 ============ */
        .not-found {
            max-width: 720px;
            margin: 48px auto;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 64px 48px;
            text-align: center;
            box-shadow: var(--shadow);
        }

        .not-found-icon {
            width: 72px;
            height: 72px;
            border-radius: 24px;
            background: rgba(22, 163, 74, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 2rem;
        }

        .not-found h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--deep-green);
        }

        .not-found p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .cta-card {
                padding: 44px 32px;
            }

            .cta-right {
                min-width: 320px;
            }
        }

        @media (max-width: 768px) {
            .article-header {
                padding: 32px 24px;
                margin-bottom: 24px;
            }

            .article-content {
                padding: 32px 24px;
                margin-bottom: 32px;
            }

            .related-section {
                padding: 36px 0;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .cta-section {
                padding: 36px 0 56px;
            }

            .cta-card {
                flex-direction: column;
                padding: 40px 24px;
                text-align: center;
                gap: 24px;
            }

            .cta-right {
                min-width: 0;
                width: 100%;
                align-items: stretch;
            }

            .cta-form {
                flex-direction: column;
                max-width: 100%;
            }

            .cta-form input {
                width: 100%;
                text-align: center;
            }

            .cta-form button {
                width: 100%;
                text-align: center;
            }

            .cta-link {
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer {
                padding: 48px 0 24px;
            }

            .article-footer {
                margin-bottom: 36px;
            }

            .breadcrumb {
                padding-top: 24px;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 1.5rem;
            }

            .article-header {
                padding: 24px 20px;
                border-radius: 20px;
            }

            .article-content {
                padding: 24px 20px;
                border-radius: 20px;
            }

            .article-meta {
                gap: 10px;
                font-size: 0.8125rem;
            }

            .section-title {
                font-size: 1.375rem;
                margin-bottom: 24px;
            }

            .not-found {
                padding: 48px 24px;
                margin: 32px auto;
            }

            .related-card img {
                height: 140px;
            }

            .breadcrumb .crumb-current {
                max-width: 180px;
            }
        }