:root {
  --primary: #1a4d3e;
  --primary-light: #2a6b57;
  --primary-dark: #0e332a;
  --accent: #c9a35c;
  --accent-light: #e0c58b;
  --bg: #f8f9f7;
  --bg-alt: #f0f3f0;
  --bg-deep: #e8ede8;
  --text: #24332b;
  --text-light: #5c6b63;
  --text-mute: #8a978f;
  --border: #e2e8e2;
  --white: #ffffff;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(26, 77, 62, 0.06);
  --shadow-md: 0 8px 30px rgba(26, 77, 62, 0.1);
  --shadow-lg: 0 16px 50px rgba(26, 77, 62, 0.14);
  --spacer: 80px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
.section { padding: var(--spacer) 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-head .tag { display: inline-block; padding: 6px 18px; background: rgba(201, 163, 92, 0.12); color: var(--primary); border: 1px solid rgba(201, 163, 92, 0.3); border-radius: 30px; font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 16px; }
.section-head h2 { font-size: 34px; font-weight: 700; color: var(--text); margin-bottom: 14px; line-height: 1.3; }
.section-head p { color: var(--text-light); font-size: 16px; line-height: 1.8; }

/* Header Nav */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.7); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(255,255,255,0.2); transition: all 0.4s ease; }
.site-header.scrolled { background: rgba(255,255,255,0.95); box-shadow: 0 4px 30px rgba(26,77,62,0.08); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; font-size: 17px; font-weight: 700; color: var(--primary); letter-spacing: 0.3px; }
.logo i { color: var(--accent); font-size: 20px; margin-right: 8px; }
.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; margin: 0; padding: 0; }
.nav-menu a { display: block; padding: 8px 16px; color: var(--text-light); font-size: 15px; font-weight: 500; border-radius: 30px; }
.nav-menu a:hover { color: var(--primary); background: rgba(26,77,62,0.06); }
.nav-menu a.active { color: var(--primary); background: rgba(26,77,62,0.1); font-weight: 600; }
.nav-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; padding: 9px 20px; border-radius: 30px; font-size: 14px; font-weight: 600; border: none; transition: all 0.3s ease; }
.nav-btn:hover { background: var(--primary-light); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 4px; }
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 20px 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); gap: 4px; transform: translateY(-120%); transition: transform 0.3s ease; }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 16px; }
  .nav-btn { margin-top: 8px; justify-content: center; }
}
@media (min-width: 769px) {
  .nav-menu { display: flex !important; }
}

/* Hero */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; background: linear-gradient(to bottom, rgba(10,36,28,0.35), rgba(10,36,28,0.3)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; color: #fff; padding-top: 100px; padding-bottom: 80px; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(75deg, rgba(10,36,28,0.75) 0%, rgba(10,36,28,0.25) 60%); pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25); padding: 8px 20px; border-radius: 30px; font-size: 14px; letter-spacing: 2px; backdrop-filter: blur(8px); margin-bottom: 24px; }
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.25; margin-bottom: 20px; letter-spacing: 1px; }
.hero-desc { font-size: 17px; line-height: 1.9; color: rgba(255,255,255,0.9); margin-bottom: 32px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.btn-main { display: inline-flex; align-items: center; gap: 10px; background: var(--accent); color: #fff; border: none; padding: 14px 32px; border-radius: 50px; font-size: 15px; font-weight: 600; transition: all 0.3s ease; box-shadow: 0 8px 25px rgba(201,163,92,0.35); }
.btn-main:hover { background: var(--accent-light); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(201,163,92,0.45); }
.btn-ghost { display: inline-flex; align-items: center; gap: 10px; background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.6); padding: 13px 28px; border-radius: 50px; font-size: 15px; font-weight: 500; transition: all 0.3s ease; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: #fff; }
.hero-stats { display: flex; gap: 40px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.25); }
.hero-stat { text-align: left; }
.hero-stat .num { font-size: 30px; font-weight: 700; display: block; }
.hero-stat .label { font-size: 13px; opacity: 0.8; letter-spacing: 1px; }
.hero-countdown { position: absolute; right: 40px; bottom: 60px; z-index: 2; background: rgba(255,255,255,0.15); backdrop-filter: blur(16px); border: 1px solid rgba(255,255,255,0.25); border-radius: 20px; padding: 20px 28px; color: #fff; text-align: center; }
.hero-countdown .cd-title { font-size: 13px; opacity: 0.9; margin-bottom: 8px; letter-spacing: 2px; }
.hero-countdown .cd-time { display: flex; gap: 8px; justify-content: center; }
.hero-countdown .cd-item { background: rgba(255,255,255,0.2); border-radius: 10px; padding: 8px 10px; min-width: 44px; }
.hero-countdown .cd-item strong { font-size: 20px; display: block; }
.hero-countdown .cd-item span { font-size: 11px; opacity: 0.8; }
@media (max-width: 992px) {
  .hero { min-height: auto; }
  .hero h1 { font-size: 32px; }
  .hero-countdown { position: static; margin-top: 30px; display: inline-block; }
}
@media (max-width: 768px) {
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat .num { font-size: 22px; }
  .section { padding: 55px 0; }
  .section-head h2 { font-size: 26px; }
}

/* Explore Categories */
.explore-bar { background: var(--white); padding: 40px 0; border-bottom: 1px solid var(--border); }
.category-chips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.chip-card { border: 1.5px solid var(--border); border-radius: var(--radius-md); padding: 22px 20px; transition: all 0.35s ease; background: #fff; text-align: center; }
.chip-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.chip-card i { font-size: 24px; color: var(--primary); margin-bottom: 10px; display: block; }
.chip-card strong { display: block; color: var(--text); font-size: 16px; margin-bottom: 6px; }
.chip-card span { font-size: 13px; color: var(--text-mute); }
@media (max-width: 768px) {
  .category-chips { grid-template-columns: repeat(2, 1fr); }
}

/* Featured Showcase */
.feature-showcase { background: var(--bg); }
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: all 0.4s ease; }
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.feature-img { position: relative; height: 200px; overflow: hidden; }
.feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.feature-card:hover .feature-img img { transform: scale(1.05); }
.feature-img .badge-tag { position: absolute; top: 16px; left: 16px; background: rgba(26,77,62,0.9); color: #fff; padding: 5px 14px; border-radius: 20px; font-size: 12px; letter-spacing: 1px; }
.feature-body { padding: 24px; }
.feature-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-body p { color: var(--text-light); font-size: 14px; line-height: 1.8; margin-bottom: 16px; }
.feature-body .feature-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-mute); border-top: 1px solid var(--border); padding-top: 14px; }
.feature-body .feature-meta a { color: var(--primary); font-weight: 500; }
.feature-body .feature-meta a:hover { color: var(--accent); }
@media (max-width: 992px) {
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .showcase-grid { grid-template-columns: 1fr; }
}

/* Flow Steps */
.flow-section { background: var(--white); }
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flow-step { text-align: center; padding: 36px 24px; border-radius: var(--radius-lg); background: var(--bg); transition: all 0.3s ease; position: relative; }
.flow-step:hover { background: var(--bg-alt); transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.flow-step .step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; margin-bottom: 18px; }
.flow-step h3 { font-size: 17px; margin-bottom: 10px; }
.flow-step p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
@media (max-width: 992px) {
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .flow-grid { grid-template-columns: 1fr; }
}

/* Service List */
.service-section { background: var(--bg-alt); }
.service-row { display: flex; align-items: center; gap: 50px; background: #fff; border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); margin-bottom: 24px; transition: all 0.3s ease; }
.service-row:hover { box-shadow: var(--shadow-md); }
.service-row:nth-child(even) { flex-direction: row-reverse; }
.service-img { flex: 1; border-radius: var(--radius-md); overflow: hidden; min-height: 260px; background-size: cover; background-position: center; }
.service-info { flex: 1; }
.service-info .tag { display: inline-block; background: rgba(201,163,92,0.15); color: var(--accent); padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; margin-bottom: 12px; letter-spacing: 1px; }
.service-info h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.service-info p { color: var(--text-light); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.service-list { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.service-list li { background: var(--bg); padding: 6px 14px; border-radius: 20px; font-size: 13px; color: var(--text); border: 1px solid var(--border); }
@media (max-width: 992px) {
  .service-row, .service-row:nth-child(even) { flex-direction: column; gap: 24px; padding: 24px; }
  .service-img { width: 100%; min-height: 220px; }
}

/* Info List + Sidebar */
.info-section { background: var(--white); }
.info-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; }
.info-list-title { font-size: 14px; font-weight: 600; color: var(--primary); letter-spacing: 2px; margin-bottom: 20px; }
.info-list-item { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.info-list-item:last-child { border-bottom: none; }
.info-list-item .date { flex-shrink: 0; text-align: center; background: var(--bg); border-radius: 12px; padding: 8px 12px; font-size: 12px; color: var(--text-mute); width: 60px; }
.info-list-item .date strong { display: block; font-size: 18px; color: var(--primary); }
.info-list-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 4px; line-height: 1.5; }
.info-list-item h3 a:hover { color: var(--accent); }
.info-list-item p { color: var(--text-mute); font-size: 13px; line-height: 1.6; }
.sidebar-card { background: var(--bg); border-radius: var(--radius-lg); padding: 28px; margin-bottom: 24px; }
.sidebar-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); display: inline-block; }
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card li { padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 14px; color: var(--text-light); display: flex; justify-content: space-between; }
.sidebar-card li:last-child { border-bottom: none; }
.sidebar-card li strong { color: var(--primary); }
.sidebar-cta { position: sticky; top: 100px; text-align: center; }
.sidebar-cta .btn-main { width: 100%; justify-content: center; margin-bottom: 12px; }
.sidebar-cta p { font-size: 13px; color: var(--text-mute); }
@media (max-width: 992px) {
  .info-layout { grid-template-columns: 1fr; }
}

/* FAQ */
.faq-section { background: var(--bg-alt); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border-radius: var(--radius-md); padding: 24px 28px; margin-bottom: 16px; box-shadow: var(--shadow-sm); border-left: 4px solid var(--accent); }
.faq-item h3 { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.faq-item p { color: var(--text-light); font-size: 15px; line-height: 1.8; }

/* CTA */
.cta-section { background: linear-gradient(120deg, var(--primary-dark), var(--primary)); color: #fff; text-align: center; padding: 90px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle, rgba(201,163,92,0.2) 0%, transparent 60%); }
.cta-section h2 { font-size: 36px; font-weight: 700; margin-bottom: 16px; position: relative; }
.cta-section p { font-size: 16px; opacity: 0.9; max-width: 600px; margin: 0 auto 36px; position: relative; line-height: 1.8; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; }
@media (max-width: 768px) {
  .cta-section h2 { font-size: 26px; }
}

/* Floating CTA */
.float-bar { position: fixed; bottom: 24px; right: 24px; z-index: 999; display: flex; flex-direction: column; gap: 12px; }
.float-bar .btn-main, .float-bar .btn-ghost-float { box-shadow: var(--shadow-lg); border-radius: 50px; padding: 12px 24px; font-size: 14px; }
.btn-ghost-float { background: #fff; color: var(--primary); border: 1px solid var(--border); display: inline-flex; align-items: center; gap: 8px; }
.btn-ghost-float:hover { background: var(--bg); color: var(--primary); }

/* Footer */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col a { display: block; padding: 6px 0; color: rgba(255,255,255,0.7); font-size: 14px; }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,0.5); }
@media (max-width: 992px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Extra: Highlight Wall */
.highlight-wall { background: var(--white); }
.hl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.hl-card { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all 0.3s ease; }
.hl-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.hl-card .hl-img { height: 140px; background-size: cover; background-position: center; position: relative; }
.hl-card .hl-body { padding: 20px; }
.hl-card .hl-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.hl-card .hl-body p { color: var(--text-light); font-size: 13px; line-height: 1.6; }
@media (max-width: 992px) {
  .hl-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .hl-grid { grid-template-columns: 1fr; }
}

/* Vertical Cards */
.v-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.v-card { background: #fff; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: all 0.3s ease; }
.v-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.v-card .v-img { height: 180px; background-size: cover; background-position: center; position: relative; }
.v-card .v-badge { position: absolute; top: 12px; left: 12px; background: rgba(26,77,62,0.85); color: #fff; font-size: 12px; padding: 3px 12px; border-radius: 20px; }
.v-card .v-body { padding: 18px; }
.v-card .v-body h3 { font-size: 15px; font-weight: 600; line-height: 1.5; margin-bottom: 8px; }
.v-card .v-body .v-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-mute); }
.v-card .v-body .btn-sm { background: var(--primary); color: #fff; padding: 5px 14px; border-radius: 20px; font-size: 12px; }
.v-card .v-body .btn-sm:hover { background: var(--primary-light); }
@media (max-width: 992px) { .v-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .v-grid { grid-template-columns: 1fr; } }

/* ========== 设计变量 ========== */
        :root {
            --primary: #1a3a5c;
            --primary-dark: #102940;
            --primary-light: #28547d;
            --accent: #c8a465;
            --accent-dark: #a8894b;
            --bg: #f4f6fa;
            --white: #ffffff;
            --text-main: #182233;
            --text-soft: #5b6b7f;
            --border: #dfe6ef;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 10px 40px rgba(26, 58, 92, .08);
            --shadow-lg: 0 24px 60px rgba(26, 58, 92, .14);
            --transition: all .3s ease;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== 按钮 ========== */
        .btn {
            border-radius: 50px;
            padding: 12px 30px;
            font-weight: 600;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            font-size: 15px;
            letter-spacing: .3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 58, 92, .25);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 58, 92, .32);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, .8);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            border-color: #fff;
        }
        .btn-gold {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 18px rgba(200, 164, 101, .35);
        }
        .btn-gold:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-block {
            width: 100%;
            justify-content: center;
        }
        .btn:focus {
            outline: 4px solid rgba(200, 164, 101, .35);
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .65);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .4);
            box-shadow: 0 2px 20px rgba(26, 58, 92, .06);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, .96);
            box-shadow: 0 4px 30px rgba(26, 58, 92, .1);
            border-bottom-color: var(--border);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 22px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 32px;
        }
        .nav-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 6px 2px;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 2px;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            color: var(--primary);
        }
        .nav-menu a.active::after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            padding: 4px 8px;
            cursor: pointer;
        }
        .nav-btn {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(26, 58, 92, .22);
            transition: var(--transition);
        }
        .nav-btn:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding: 170px 0 110px;
            background: linear-gradient(135deg, rgba(16, 41, 64, .92), rgba(26, 58, 92, .82)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 164, 101, .15);
            filter: blur(60px);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 50px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: .5px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, .95);
        }
        .hero h1 {
            font-size: 42px;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 540px;
            margin-bottom: 28px;
        }
        .hero-progress {
            max-width: 500px;
            margin-bottom: 32px;
            background: rgba(255, 255, 255, .1);
            border-radius: 16px;
            padding: 20px 22px;
            border: 1px solid rgba(255, 255, 255, .15);
        }
        .hero-progress .d-flex {
            font-size: 13px;
            font-weight: 600;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 10px;
            letter-spacing: .3px;
        }
        .hero-progress .progress {
            height: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, .15);
        }
        .hero-progress .progress-bar {
            background: linear-gradient(90deg, var(--accent), #e4c58a);
            border-radius: 8px;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .invite-card {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 24px;
            padding: 36px 32px;
            backdrop-filter: blur(8px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, .15);
            position: relative;
        }
        .invite-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #e0bc7a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #fff;
            margin-bottom: 20px;
            box-shadow: 0 8px 24px rgba(200, 164, 101, .4);
        }
        .invite-card h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .invite-card p {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .invite-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
        }
        .invite-card li {
            color: rgba(255, 255, 255, .85);
            font-size: 14px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .invite-card li i {
            color: var(--accent);
            font-size: 13px;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 90px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 60px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--accent-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
        }
        .section-tag::before,
        .section-tag::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 1px;
            background: var(--accent);
            vertical-align: middle;
            margin: 0 10px;
            opacity: .5;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.8;
        }

        /* ========== 服务卡片 ========== */
        .service-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .service-card img {
            width: 100%;
            height: 230px;
            object-fit: cover;
            display: block;
        }
        .service-card-body {
            padding: 28px;
        }
        .service-card-body .card-badge {
            display: inline-block;
            background: rgba(200, 164, 101, .15);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .service-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .service-card-body p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ========== 数据区块 ========== */
        .stats-section {
            background: var(--primary);
            background-image: linear-gradient(135deg, rgba(16, 41, 64, .95), rgba(26, 58, 92, .9)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .stats-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding: 70px 0;
        }
        .stat-item {
            text-align: center;
            color: #fff;
            padding: 20px;
        }
        .stat-num {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
            color: #fff;
        }
        .stat-num span {
            font-size: 24px;
            font-weight: 600;
            margin-left: 2px;
            color: var(--accent);
        }
        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, .75);
            letter-spacing: .5px;
        }

        /* ========== 场景板块 ========== */
        .scene-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .scene-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }
        .scene-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scene-item:hover::before {
            opacity: 1;
        }
        .scene-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(200, 164, 101, .12);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 18px;
        }
        .scene-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .scene-item p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== 流程 ========== */
        .flow-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .flow-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            counter-reset: flow;
        }
        .flow-step {
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }
        .flow-step::after {
            content: '→';
            position: absolute;
            right: -20px;
            top: 50%;
            font-size: 28px;
            color: var(--accent);
            opacity: .5;
            transform: translateY(-50%);
        }
        .flow-step:last-child::after {
            display: none;
        }
        .flow-num {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(26, 58, 92, .22);
        }
        .flow-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            box-shadow: 0 4px 16px rgba(26, 58, 92, .04);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(200, 164, 101, .4);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, rgba(16, 41, 64, .94), rgba(26, 58, 92, .86)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            padding: 90px 0;
            text-align: center;
            color: #fff;
            position: relative;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }
        .cta-phone {
            font-size: 20px;
            font-weight: 700;
            color: rgba(255, 255, 255, .9);
            letter-spacing: 1px;
        }
        .cta-phone a {
            color: #fff;
        }
        .cta-phone a:hover {
            color: var(--accent);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            margin-top: 12px;
            max-width: 340px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero {
                padding: 150px 0 90px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .stats-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 60px 0;
            }
            .flow-wrap {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 40px;
            }
            .flow-step::after {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero {
                padding: 130px 0 80px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-btns .btn {
                width: 100%;
                justify-content: center;
            }
            .invite-card {
                margin-top: 30px;
                padding: 28px 24px;
            }
            .service-card img {
                height: 200px;
            }
            .scene-wrap {
                grid-template-columns: 1fr;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            /* 导航 */
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, .98);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
                gap: 18px;
                box-shadow: 0 20px 40px rgba(26, 58, 92, .12);
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-menu a {
                font-size: 16px;
                width: 100%;
            }
            .nav-menu a::after {
                display: none;
            }
            .nav-btn {
                display: none !important;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-progress {
                padding: 16px;
            }
            .stats-num {
                font-size: 36px;
            }
            .flow-wrap {
                grid-template-columns: 1fr;
            }
            .cta-btns .btn {
                width: 100%;
                justify-content: center;
            }
            .faq-item summary {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 13px;
            }
        }