/* roulang page: index */
:root{
  --primary:#2b6cb0; --primary-dark:#1e4f82; --primary-light:#ebf4ff;
  --accent:#3182ce; --accent-soft:#dbeafe;
  --bg:#f8fafc; --surface:#ffffff;
  --text:#1e293b; --text-light:#64748b; --text-muted:#94a3b8;
  --border:#e2e8f0;
  --radius:14px; --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(30,41,59,.06);
  --shadow:0 8px 30px rgba(30,41,59,.08);
  --shadow-lg:0 16px 40px rgba(30,41,59,.12);
  --transition:all .25s ease;
  --font-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{max-width:720px;margin:0 auto 52px;text-align:center}
.eyebrow{display:inline-block;background:var(--accent-soft);color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.05em;padding:4px 14px;border-radius:20px;margin-bottom:14px}
.section-head h2{font-size:32px;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:12px}
.section-head p{color:var(--text-light);font-size:16px;line-height:1.7}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:var(--transition);text-decoration:none}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(43,108,176,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(43,108,176,.35)}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-lg{padding:15px 34px;font-size:16px}
.btn-sm{padding:8px 18px;font-size:13px}
.btn-block{width:100%}

/* Header Nav */
.site-header{background:rgba(255,255,255,.98);box-shadow:0 2px 12px rgba(30,41,59,.06);position:relative;z-index:100;border-bottom:1px solid var(--border)}
.header-main{display:flex;align-items:center;gap:28px;padding:14px 24px;max-width:1280px}
.brand-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-badge{width:42px;height:42px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;font-weight:700;box-shadow:0 4px 12px rgba(43,108,176,.3)}
.logo-text{line-height:1.2}
.logo-text strong{font-size:17px;font-weight:700;color:var(--text);display:block}
.logo-text small{font-size:12px;color:var(--text-muted);letter-spacing:.05em}
.main-nav{display:flex;gap:6px;align-items:center}
.main-nav a{padding:8px 16px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-light)}
.main-nav a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav a.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.header-search{flex:1;max-width:240px;position:relative;margin-left:auto}
.header-search input{width:100%;padding:9px 16px 9px 38px;border:1px solid var(--border);border-radius:20px;font-size:14px;background:var(--bg);transition:var(--transition);outline:none}
.header-search input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(49,130,206,.15)}
.header-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:14px}
.header-cta{margin-left:4px;flex-shrink:0}

/* Hero */
.hero{position:relative;padding:96px 0;overflow:hidden;background:linear-gradient(135deg,rgba(20,50,85,.94),rgba(43,108,176,.86)),url('/assets/images/backpic/back-1.jpg') center/cover no-repeat}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,50,85,.2),transparent 70%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero-copy .eyebrow{background:rgba(255,255,255,.14);color:#dcefff;border:1px solid rgba(255,255,255,.18)}
.hero-copy h1{color:#fff;font-size:36px;font-weight:700;line-height:1.35;margin:16px 0 18px;letter-spacing:.01em}
.hero-desc{color:#d8e4f2;font-size:16px;line-height:1.8;max-width:540px;margin-bottom:28px}
.hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-metrics{display:flex;gap:36px}
.metric-item{display:flex;flex-direction:column}
.metric-item strong{font-size:26px;font-weight:700;color:#fff}
.metric-item span{font-size:13px;color:#a8c4e0}
.hero-side{display:flex;flex-direction:column;gap:20px}
.progress-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:28px;text-align:center;backdrop-filter:blur(10px)}
.progress-card .ring-wrap{position:relative;width:140px;height:140px;margin:0 auto 14px}
.progress-ring{width:140px;height:140px}
.progress-track{fill:none;stroke:rgba(255,255,255,.14);stroke-width:10}
.progress-bar{fill:none;stroke:#6bb7ff;stroke-width:10;stroke-linecap:round;stroke-dasharray:326.7;stroke-dashoffset:49;transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset 1.2s ease}
.ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring-center strong{font-size:30px;color:#fff;font-weight:700}
.ring-center span{font-size:12px;color:#a8c4e0}
.progress-card p{color:#cfe2f5;font-size:14px;margin-top:6px}
.tier-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tier-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:20px;transition:var(--transition)}
.tier-card:hover{background:rgba(255,255,255,.2);transform:translateY(-3px)}
.tier-tag{display:inline-block;font-size:11px;font-weight:600;background:rgba(255,255,255,.2);color:#dcefff;padding:2px 10px;border-radius:10px;margin-bottom:10px}
.tier-card .price{font-size:26px;font-weight:700;color:#fff}
.tier-card .price small{font-size:13px;font-weight:400;color:#a8c4e0}
.tier-card p{font-size:13px;color:#cfe2f5;margin:8px 0 12px}
.tier-card .tier-btn{font-size:13px;color:#fff;text-decoration:underline;font-weight:500}
.tier-card .tier-btn:hover{color:#6bb7ff}

/* Features */
.features-section{background:var(--surface)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;transition:var(--transition)}
.feature-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:var(--accent-soft)}
.feature-icon{width:52px;height:52px;border-radius:12px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;margin-bottom:18px}
.feature-card h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}

/* Slot cards */
.slots-section{background:var(--bg)}
.slots-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.slot-card{background:var(--surface);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--border);text-align:center;transition:var(--transition);position:relative;overflow:hidden}
.slot-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--primary);opacity:0;transition:var(--transition)}
.slot-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.slot-card:hover::before{opacity:1}
.slot-time{font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);display:inline-block;padding:4px 14px;border-radius:16px;margin-bottom:14px}
.slot-card h3{font-size:20px;font-weight:600;margin-bottom:8px}
.slot-card p{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:0}

/* News */
.news-section{background:var(--surface)}
.news-layout{display:grid;grid-template-columns:1fr 360px;gap:44px;align-items:start}
.news-list{list-style:none;border-top:1px solid var(--border)}
.news-list li{border-bottom:1px solid var(--border);padding:18px 0;transition:var(--transition)}
.news-list li:hover{padding-left:8px}
.news-list li a{display:flex;justify-content:space-between;align-items:center;gap:16px}
.news-list li a span:first-child{font-size:16px;font-weight:500;color:var(--text);line-height:1.5}
.news-list li a em{font-style:normal;font-size:12px;color:var(--text-muted);background:var(--bg);padding:3px 10px;border-radius:12px;flex-shrink:0}
.news-list li a:hover span:first-child{color:var(--primary)}
.news-sidebar .sidebar-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);margin-bottom:24px}
.sidebar-card img{width:100%;height:180px;object-fit:cover}
.sidebar-card .card-body{padding:20px}
.sidebar-card h4{font-size:16px;font-weight:600;margin-bottom:8px}
.sidebar-card p{font-size:14px;color:var(--text-light);line-height:1.7}
.sidebar-card .card-link{color:var(--primary);font-weight:600;font-size:14px}
.sidebar-card .card-link:hover{text-decoration:underline}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px}
.hot-tags .tag{display:inline-block;font-size:13px;background:var(--bg);border:1px solid var(--border);padding:5px 14px;border-radius:20px;color:var(--text-light);transition:var(--transition)}
.hot-tags .tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}

/* Trust */
.trust-section{background:var(--primary);color:#fff}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.trust-item{text-align:center;padding:24px}
.trust-item i{font-size:32px;margin-bottom:14px;display:inline-block;color:#6bb7ff}
.trust-item h3{font-size:18px;font-weight:600;margin-bottom:10px}
.trust-item p{font-size:14px;color:#cfe2f5;line-height:1.7}

/* Book */
.book-section{background:var(--bg)}
.book-card{background:var(--surface);border-radius:20px;box-shadow:var(--shadow);padding:52px;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;border:1px solid var(--border)}
.book-intro h2{font-size:30px;font-weight:700;margin:12px 0 12px}
.book-intro p{color:var(--text-light);font-size:15px;line-height:1.8}
.book-intro .tips{margin-top:24px;padding:20px;background:var(--primary-light);border-radius:12px;font-size:14px;color:var(--text)}
.book-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.book-form input,.book-form select,.book-form textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:10px;background:var(--bg);font-size:15px;outline:none;transition:var(--transition)}
.book-form input:focus,.book-form select:focus,.book-form textarea:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(49,130,206,.12)}
.book-form textarea{min-height:90px;resize:vertical;margin-bottom:18px}
.book-form select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8.5L1.5 4h9z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}

/* FAQ */
.faq-section{background:var(--surface)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);padding:24px 26px;transition:var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px;display:flex;gap:10px}
.faq-item h3::before{content:'Q';width:24px;height:24px;border-radius:6px;background:var(--primary-light);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.faq-item p{font-size:14px;color:var(--text-light);line-height:1.8;padding-left:34px}
.faq-item p::before{content:'A';font-weight:700;color:var(--accent);margin-right:6px}

/* CTA */
.cta-band{position:relative;background:linear-gradient(135deg,rgba(20,50,85,.96),rgba(43,108,176,.92)),url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;padding:72px 0;text-align:center;color:#fff}
.cta-band h2{font-size:32px;font-weight:700;margin-bottom:12px}
.cta-band p{color:#d8e4f2;font-size:16px;margin-bottom:28px}

/* Footer */
.site-footer{background:#0f2338;color:#a8c4e0;padding:60px 0 0;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:44px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .brand-logo{color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;display:block}
.footer-brand p{line-height:1.8;color:#8fa8c0}
.footer-links h4,.footer-contact h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-links a{display:block;color:#8fa8c0;padding:4px 0;transition:var(--transition)}
.footer-links a:hover{color:#6bb7ff;padding-left:4px}
.footer-contact p{margin-bottom:6px;color:#8fa8c0;line-height:1.8}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0;color:#6a86a0;font-size:13px;flex-wrap:wrap;gap:8px}

/* Responsive */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .slots-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .news-layout{grid-template-columns:1fr}
  .news-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .book-card{grid-template-columns:1fr;gap:32px}
  .faq-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .header-main{flex-wrap:wrap;gap:12px;padding:12px 16px}
  .header-search{display:none}
  .main-nav{order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;display:flex;gap:8px;padding-bottom:4px}
  .main-nav a{flex-shrink:0;padding:6px 14px;font-size:14px}
  .header-cta{margin-left:auto;padding:8px 16px;font-size:13px}
  .hero{padding:64px 0}
  .hero-copy h1{font-size:28px}
  .hero-metrics{flex-wrap:wrap;gap:20px}
  .hero-side{max-width:440px}
  .tier-cards{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .features-section .section-head h2{font-size:24px}
  .slot-card{padding:24px}
  .section-head h2{font-size:26px}
  .news-sidebar{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr;gap:4px}
  .book-card{padding:28px}
  .book-form .form-row{grid-template-columns:1fr}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:26px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero-copy h1{font-size:24px}
  .hero-desc{font-size:14px}
  .hero-cta-row .btn{padding:11px 20px;font-size:14px}
  .metric-item strong{font-size:22px}
  .features-section .feature-card{padding:24px}
  .news-list li a{flex-direction:column;gap:6px;align-items:flex-start}
  .faq-item{padding:20px}
  .faq-item p{padding-left:0}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --primary-lighter: #eff6ff;
  --accent: #0ea5e9;
  --accent-soft: #e0f2fe;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --text: #1e293b;
  --text-light: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.10);
  --shadow-primary: 0 8px 24px rgba(26, 86, 219, 0.25);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
/* ============ 基础 reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; margin: 0; padding: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { padding: 80px 0; position: relative; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 13px; font-weight: 600; padding: 6px 16px;
  border-radius: 100px; letter-spacing: 1px; margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800; line-height: 1.3; color: var(--text);
  margin: 0 0 16px; letter-spacing: -0.02em;
}
.section-sub {
  font-size: 1.1rem; color: var(--text-light);
  max-width: 720px; margin: 0 0 48px; line-height: 1.7;
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ============ 导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}
.header-main {
  display: flex; align-items: center; gap: 28px;
  height: 72px;
}
.brand-logo {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.logo-badge {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-primary);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong {
  font-size: 16px; font-weight: 700; color: var(--text);
  white-space: nowrap;
}
.logo-text small {
  font-size: 11px; color: var(--text-muted); letter-spacing: 0.5px;
}
.main-nav {
  display: flex; align-items: center; gap: 4px;
  margin-left: auto;
}
.main-nav a {
  padding: 8px 16px; border-radius: 8px;
  font-size: 15px; font-weight: 500; color: var(--text-light);
  transition: var(--transition);
}
.main-nav a:hover { color: var(--primary); background: var(--primary-lighter); }
.main-nav a.active {
  color: var(--primary); background: var(--primary-light);
  font-weight: 600;
}
.header-search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: 100px; padding: 0 16px; height: 38px;
  width: 220px; transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
}
.header-search i { color: var(--text-muted); font-size: 14px; }
.header-search input {
  border: none; background: transparent; outline: none;
  width: 100%; font-size: 13px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 32px; border-radius: 12px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 2px solid transparent; transition: var(--transition);
  line-height: 1.2;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(26, 86, 219, 0.35);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent; border-color: var(--primary); color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary); color: #fff; transform: translateY(-2px);
}
.btn-white {
  background: #fff; color: var(--primary-dark); box-shadow: var(--shadow);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-sm { padding: 8px 20px; font-size: 14px; border-radius: 10px; }
.header-cta { flex-shrink: 0; }

/* ============ Hero ============ */
.hero {
  position: relative; min-height: 560px;
  display: flex; align-items: center;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(26, 86, 219, 0.72)),
              url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  color: #fff; padding: 100px 0;
}
.hero-content { max-width: 640px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff; padding: 6px 16px; border-radius: 100px;
  font-size: 13px; font-weight: 500; margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800; line-height: 1.25; margin: 0 0 16px;
  letter-spacing: -0.03em;
}
.hero p {
  font-size: 1.15rem; line-height: 1.7; opacity: 0.95;
  margin: 0 0 32px; max-width: 520px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 32px; margin-top: 48px;
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.2);
}
.hero-stats .stat-num {
  font-size: 28px; font-weight: 800; line-height: 1;
}
.hero-stats .stat-label {
  font-size: 13px; opacity: 0.8; margin-top: 4px;
}

/* ============ 痛点区块 ============ */
.pain-section { background: var(--bg-alt); }
.pain-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pain-card {
  background: #fff; border-radius: var(--radius);
  padding: 32px 28px; border: 1px solid var(--border);
  box-shadow: var(--shadow); transition: var(--transition);
  text-align: center;
}
.pain-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.pain-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin: 0 auto 18px;
}
.pain-card h3 { font-size: 18px; font-weight: 700; margin: 0 0 10px; }
.pain-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; margin: 0; }

/* ============ 解决方案 / 服务卡片 ============ */
.solution-section { background: #fff; }
.solution-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.solution-card {
  border-radius: var(--radius-lg); overflow: hidden;
  background: #fff; border: 1px solid var(--border);
  box-shadow: var(--shadow); transition: var(--transition);
  display: flex; flex-direction: column;
}
.solution-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-lg);
}
.solution-card .card-img {
  height: 220px; overflow: hidden; position: relative;
}
.solution-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.solution-card:hover .card-img img { transform: scale(1.05); }
.card-img .tag {
  position: absolute; top: 16px; left: 16px;
  background: rgba(255,255,255,0.9); color: var(--text);
  backdrop-filter: blur(4px);
  padding: 4px 14px; border-radius: 100px;
  font-size: 12px; font-weight: 600;
}
.solution-card .card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.solution-card h3 { font-size: 20px; font-weight: 700; margin: 0 0 10px; }
.solution-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin: 0 0 20px; flex: 1; }
.card-features {
  margin: 0 0 20px; padding: 0;
}
.card-features li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-light);
  margin-bottom: 6px;
}
.card-features li i { color: var(--primary); font-size: 12px; }
.card-link {
  color: var(--primary); font-weight: 600; font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
}
.card-link:hover { gap: 10px; color: var(--primary-dark); }

/* ============ 适用场景 ============ */
.scene-section {
  background: linear-gradient(135deg, var(--bg-dark), #1e293b);
  color: #fff;
}
.scene-section .section-title { color: #fff; }
.scene-section .section-sub { color: rgba(255,255,255,0.7); }
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius); padding: 32px;
  backdrop-filter: blur(8px); transition: var(--transition);
}
.scene-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}
.scene-card i {
  font-size: 28px; color: var(--accent); margin-bottom: 16px;
  display: inline-block;
}
.scene-card h3 { font-size: 18px; font-weight: 700; margin: 0 0 10px; }
.scene-card p { font-size: 14px; line-height: 1.7; opacity: 0.85; margin: 0; }

/* ============ 流程 ============ */
.process-section { background: var(--bg-alt); }
.process-steps {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px; position: relative;
}
.process-step {
  text-align: center; padding: 40px 24px; position: relative;
}
.process-step .step-num {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; box-shadow: var(--shadow-primary);
}
.process-step h3 { font-size: 18px; font-weight: 700; margin: 0 0 10px; }
.process-step p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin: 0; max-width: 240px; margin-left: auto; margin-right: auto; }
.process-step::after {
  content: '→'; position: absolute; top: 50%; right: -16px;
  font-size: 22px; color: var(--primary); transform: translateY(-50%);
}
.process-step:last-child::after { display: none; }

/* ============ 数据 / 证言 ============ */
.stats-band {
  background: var(--primary); color: #fff;
  padding: 60px 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; text-align: center;
}
.stats-grid .stat-num {
  font-size: 40px; font-weight: 800; line-height: 1;
  margin-bottom: 8px;
}
.stats-grid .stat-label { font-size: 14px; opacity: 0.85; }
.testimonial-section { background: #fff; }
.testimonial-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-alt); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.testimonial-card .stars { color: #f59e0b; font-size: 14px; margin-bottom: 12px; }
.testimonial-card blockquote {
  margin: 0 0 16px; font-size: 14px; color: var(--text-light);
  line-height: 1.7; border-left: 3px solid var(--primary); padding-left: 14px;
}
.testimonial-card .author {
  font-size: 14px; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: 8px;
}
.testimonial-card .author span { color: var(--text-muted); font-weight: 400; font-size: 13px; }

/* ============ FAQ ============ */
.faq-section { background: var(--bg-alt); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 12px; overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }
.faq-question {
  width: 100%; text-align: left; padding: 20px 24px;
  background: none; border: none; cursor: pointer;
  font-size: 16px; font-weight: 600; color: var(--text);
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px;
}
.faq-question i {
  font-size: 14px; color: var(--primary); transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease;
}
.faq-answer-inner { padding: 0 24px 20px; font-size: 15px; color: var(--text-light); line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 300px; }

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 80px 0; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -50%; left: -20%;
  width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 60%);
  transform: rotate(20deg);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800; margin: 0 0 16px;
}
.cta-inner p { font-size: 1.1rem; opacity: 0.9; margin: 0 0 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-contact {
  margin-top: 32px; font-size: 15px; opacity: 0.9;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  flex-wrap: wrap;
}
.cta-contact .contact-item {
  background: rgba(255,255,255,0.15); padding: 6px 16px;
  border-radius: 100px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-dark); color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand-logo { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 12px; display: inline-flex; align-items: center; gap: 10px; }
.footer-brand .brand-logo .logo-badge { width: 36px; height: 36px; font-size: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; opacity: 0.7; max-width: 320px; margin: 0; }
.footer-links h4, .footer-contact h4 {
  font-size: 15px; font-weight: 700; color: #fff;
  margin: 0 0 16px;
}
.footer-links a {
  display: block; font-size: 14px; opacity: 0.7;
  margin-bottom: 10px; transition: var(--transition);
}
.footer-links a:hover { opacity: 1; color: var(--accent); padding-left: 4px; }
.footer-contact p {
  font-size: 14px; opacity: 0.7; margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}
.footer-contact p i { color: var(--accent); font-size: 13px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0; font-size: 13px; opacity: 0.6;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .header-search { display: none; }
  .hero { min-height: 480px; padding: 80px 0; }
  .solution-grid, .scene-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .header-main { height: 64px; gap: 12px; }
  .logo-text strong { font-size: 14px; }
  .logo-text small { display: none; }
  .main-nav { margin-left: 0; }
  .main-nav a { padding: 6px 12px; font-size: 14px; }
  .header-cta { padding: 6px 14px; font-size: 13px; }
  .hero { min-height: 420px; padding: 60px 0; }
  .hero p { font-size: 1rem; }
  .pain-grid, .solution-grid, .scene-grid, .testimonial-grid, .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .process-steps { grid-template-columns: 1fr; }
  .process-step::after { display: none; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { gap: 20px; }
  .hero-stats .stat-num { font-size: 22px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .pain-grid, .solution-grid, .scene-grid, .testimonial-grid, .stats-grid {
    grid-template-columns: 1fr;
  }
  .main-nav a { font-size: 13px; padding: 6px 10px; }
  .header-cta { display: none; }
  .hero h1 { font-size: 1.8rem; }
  .hero-stats { flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}