/* ============================================
   厦门柏华网络科技 - 高端企业官网样式
   设计理念：大气 | 专业 | 现代 | 科技感
   ============================================ */

/* === CSS变量 === */
:root {
    --primary: #0a1f44;
    --primary-light: #0f2d5e;
    --primary-lighter: #153b78;
    --accent: #c8963e;
    --accent-light: #d4a853;
    --accent-dark: #a07828;
    --text: #1a1a2e;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg: #ffffff;
    --bg-light: #f7f8fb;
    --bg-lighter: #edf0f5;
    --border: #e2e8f0;
    --success: #2f855a;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
    --max-width: 1240px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* === 顶部工具栏 === */
.top-bar {
    background: #060e1f;
    color: rgba(255,255,255,0.7);
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar .top-welcome { display: flex; align-items: center; gap: 6px; }
.top-bar .top-welcome::before { content: ""; display: inline-block; width: 7px; height: 7px; background: #48bb78; border-radius: 50%; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:0.4} }
.top-contact { display: flex; gap: 24px; }
.top-contact span { display: flex; align-items: center; gap: 5px; }

/* === 头部导航 === */
.site-header {
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 0 rgba(0,0,0,0.05), 0 4px 20px rgba(0,0,0,0.04);
    transition: var(--transition);
}
.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}
.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}
.logo-img {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-lighter) 100%);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 24px; font-weight: 900;
}
.logo-text h1 { font-size: 20px; color: var(--primary); font-weight: 700; line-height: 1.2; letter-spacing: -0.3px; }
.logo-text p { font-size: 11px; color: var(--text-light); letter-spacing: 2px; text-transform: uppercase; }

/* 导航 */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--primary); margin: 5px 0; border-radius: 1px; transition: var(--transition); }
.nav-list { list-style: none; display: flex; gap: 2px; align-items: center; }
.nav-list > li { position: relative; }
.nav-list > li > a {
    display: block;
    padding: 8px 18px;
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}
.nav-list > li > a::after {
    content: "";
    position: absolute;
    bottom: 2px; left: 18px; right: 18px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.25s ease;
}
.nav-list > li > a:hover { color: var(--primary); background: rgba(10,31,68,0.04); }
.nav-list > li > a:hover::after { transform: scaleX(1); }
.nav-list > li.active > a { color: var(--primary); font-weight: 600; }
.nav-list > li.active > a::after { transform: scaleX(1); background: var(--accent); }
.nav-list > li.nav-cta { margin-left: 8px; }
.nav-list > li.nav-cta a {
    background: var(--accent);
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 24px;
    font-weight: 600;
    transition: var(--transition);
}
.nav-list > li.nav-cta a::after { display: none; }
.nav-list > li.nav-cta a:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(200,150,62,0.35); }

/* 子菜单 */
.has-submenu { position: relative; }
.has-submenu > a { cursor: pointer; }
.has-submenu .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 4px;
    background: #fff;
    min-width: 160px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    border-radius: var(--radius-sm);
    list-style: none;
    padding: 6px 0;
    border: 1px solid var(--border);
    z-index: 999;
}
/* 桌面hover + 点击均可打开 */
.has-submenu:hover .submenu,
.has-submenu.open .submenu { display: block; }
.submenu li a {
    display: block;
    padding: 9px 20px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}
.submenu li a:hover { background: var(--bg-light); color: var(--primary); }

/* === Hero区域 === */
.hero {
    position: relative;
    background: linear-gradient(160deg, #060e1f 0%, #0a1f44 30%, #0f2d5e 60%, #0a1f44 100%);
    padding: 100px 0 120px;
    overflow: hidden;
    color: #fff;
}
/* 网格背景 */
.hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
/* 光晕装饰 */
.hero::after {
    content: "";
    position: absolute;
    top: -200px; right: -200px;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(200,150,62,0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
    display: inline-block;
    background: rgba(200,150,62,0.15);
    border: 1px solid rgba(200,150,62,0.3);
    color: var(--accent-light);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 24px;
}
.hero-content { max-width: 750px; }
.hero h2 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1px;
}
.hero h2 .hl { color: var(--accent-light); position: relative; }
.hero h2 .hl::after {
    content: "";
    position: absolute;
    bottom: 4px; left: 0; right: 0;
    height: 8px;
    background: rgba(200,150,62,0.2);
    border-radius: 4px;
    z-index: -1;
}
.hero p {
    font-size: 18px;
    line-height: 1.8;
    opacity: 0.75;
    margin-bottom: 36px;
    max-width: 620px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; margin-top: 60px; }
.hero-stat { text-align: left; }
.hero-stat .num {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
    margin-bottom: 4px;
}
.hero-stat .num small { font-size: 24px; }
.hero-stat .label { font-size: 13px; opacity: 0.6; letter-spacing: 1px; }
/* Hero右侧装饰 */
.hero-visual {
    position: absolute;
    right: -40px; top: 50%;
    transform: translateY(-50%);
    width: 500px; height: 500px;
    pointer-events: none;
}
.hero-visual .orbit {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.06);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.hero-visual .orbit:nth-child(1) { width: 420px; height: 420px; }
.hero-visual .orbit:nth-child(2) { width: 300px; height: 300px; }
.hero-visual .orbit:nth-child(3) { width: 180px; height: 180px; }
.hero-visual .globe {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 100px; height: 100px;
    background: radial-gradient(circle at 40% 40%, rgba(200,150,62,0.5), rgba(10,31,68,0.8));
    border-radius: 50%;
    box-shadow: 0 0 80px rgba(200,150,62,0.25);
}

/* === 通用区块 === */
.section { padding: 90px 0; }
.section-gray { background: var(--bg-light); }
.section-dark {
    background: linear-gradient(160deg, #060e1f 0%, #0a1f44 100%);
    color: #fff;
}

/* === 区块标题 === */
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .subtitle {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.section-dark .section-header h2 { color: #fff; }
.section-header p {
    font-size: 17px;
    color: var(--text-light);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}
.section-dark .section-header p { color: rgba(255,255,255,0.6); }
.section-divider {
    width: 48px; height: 3px;
    background: var(--accent);
    margin: 16px auto;
    border-radius: 2px;
}

/* === 按钮 === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 34px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.3px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(200,150,62,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(200,150,62,0.45);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.6);
    transform: translateY(-2px);
}
.btn-white {
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow);
}
.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn-block { display: flex; width: 100%; }
.btn-sm { padding: 10px 22px; font-size: 14px; }

/* === 服务卡片 === */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px 28px 32px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.service-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: var(--bg-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    transition: var(--transition);
}
.service-card:hover .service-icon {
    background: rgba(200,150,62,0.1);
    transform: scale(1.05);
}
.service-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--primary); }
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.service-card .card-arrow {
    display: inline-block;
    margin-top: 14px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    transform: translateY(8px);
    transition: var(--transition);
}
.service-card:hover .card-arrow { opacity: 1; transform: translateY(0); }

/* === 数据统计 === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.stat-item {
    text-align: center;
    padding: 30px;
}
.stat-icon { font-size: 36px; margin-bottom: 12px; }
.stat-num { font-size: 44px; font-weight: 800; color: var(--primary); line-height: 1.1; margin-bottom: 6px; }
.stat-num .plus { color: var(--accent); }
.stat-label { font-size: 15px; color: var(--text-light); font-weight: 500; }

/* === 机房方案卡片 === */
.card-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.package-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
}
.package-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.package-card.featured {
    border: 2px solid var(--accent);
    box-shadow: 0 8px 40px rgba(200,150,62,0.15);
    transform: scale(1.03);
}
.package-card.featured:hover { transform: scale(1.03) translateY(-6px); }
.package-badge {
    position: absolute;
    top: 0; right: 0;
    background: var(--accent);
    color: #fff;
    padding: 6px 20px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 0 0 0 12px;
    letter-spacing: 1px;
}
.package-header {
    padding: 32px 28px 20px;
    text-align: center;
    border-bottom: 1px solid var(--bg-lighter);
}
.package-header .flag { font-size: 36px; margin-bottom: 8px; display: block; }
.package-header h3 { font-size: 20px; font-weight: 700; color: var(--primary); }
.package-header .price { font-size: 40px; font-weight: 800; color: var(--accent); margin-top: 8px; line-height: 1; }
.package-header .price small { font-size: 15px; font-weight: 400; color: var(--text-light); }
.package-body { padding: 24px 28px; }
.package-body ul { list-style: none; }
.package-body li {
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-lighter);
    font-size: 14px;
    color: var(--text-secondary);
    display: flex; align-items: center; gap: 10px;
}
.package-body li::before {
    content: "";
    display: inline-block;
    width: 18px; height: 18px;
    background: #edf7ee; border-radius: 50%;
    flex-shrink: 0;
    position: relative;
}
.package-body li::after {
    content: "✓";
    position: absolute;
    color: var(--success);
    font-size: 10px;
    font-weight: 700;
    margin-left: -14px;
}
.package-body li:last-child { border-bottom: none; }
.package-footer { padding: 0 28px 28px; text-align: center; }

/* === 优势卡片 === */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.feature-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card .f-icon {
    width: 56px; height: 56px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, rgba(10,31,68,0.06) 0%, rgba(200,150,62,0.08) 100%);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
}
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === 流程 === */
.process-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    position: relative;
}
.process-row::before {
    content: "";
    position: absolute;
    top: 36px; left: 15%; right: 15%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent), transparent);
    z-index: 0;
}
.process-item {
    text-align: center;
    position: relative;
    z-index: 1;
}
.process-num {
    width: 72px; height: 72px;
    margin: 0 auto 16px;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; font-weight: 800;
    color: var(--primary);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.process-item:hover .process-num {
    border-color: var(--accent);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: 0 8px 28px rgba(10,31,68,0.2);
}
.process-item h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--primary); }
.process-item p { font-size: 13px; color: var(--text-light); }

/* === 面包屑 === */
.breadcrumb {
    background: var(--bg-light);
    padding: 12px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li:not(:last-child)::after { content: "›"; margin: 0 8px; color: #cbd5e0; font-size: 16px; }
.breadcrumb a { color: var(--text-light); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .active { color: var(--primary); font-weight: 600; }

/* === 页面横幅（内页Hero - 600px） === */
.page-banner {
    background: linear-gradient(160deg, #060e1f 0%, #0a1f44 55%, #0f2d5e 100%);
    color: #fff;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 45px 45px;
    pointer-events: none;
}
/* 光晕装饰 */
.page-banner::after {
    content: "";
    position: absolute;
    top: -250px; right: -150px;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(200,150,62,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.page-banner .container {
    position: relative;
    z-index: 1;
    width: 100%;
}
/* Hero 双栏布局 */
.banner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    min-height: 500px;
}
.banner-content {
    padding: 40px 0;
}
.banner-content .banner-badge {
    display: inline-block;
    background: rgba(200,150,62,0.15);
    border: 1px solid rgba(200,150,62,0.3);
    color: var(--accent-light);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
    text-transform: uppercase;
}
.banner-content h2 {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.banner-content h2 .hl { color: var(--accent-light); }
.banner-content .banner-desc {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.7;
    margin-bottom: 28px;
    max-width: 520px;
}
.banner-content .banner-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 28px;
}
.banner-content .banner-features .bf-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.85;
}
.banner-content .banner-features .bf-item .bf-icon {
    width: 28px; height: 28px;
    background: rgba(200,150,62,0.15);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}
.banner-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.banner-visual img {
    max-width: 100%;
    max-height: 420px;
    width: auto; height: auto;
    filter: drop-shadow(0 20px 60px rgba(0,0,0,0.3));
}

/* 响应式 */
@media (max-width: 768px) {
    .page-banner { min-height: auto; }
    .banner-grid { grid-template-columns: 1fr; gap: 20px; min-height: auto; }
    .banner-content { padding: 30px 0 10px; text-align: center; }
    .banner-content h2 { font-size: 28px; }
    .banner-content .banner-desc { max-width: 100%; }
    .banner-content .banner-features { justify-content: center; }
    .banner-visual { padding: 10px 0 30px; }
    .banner-visual img { max-height: 260px; }
}

/* === 内容区域 === */
.content-area { padding: 40px 0; }
.content-area h2 { font-size: 26px; color: var(--primary); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--bg-lighter); }
.content-area h3 { font-size: 20px; margin: 28px 0 14px; color: var(--text); }
.content-area p { margin-bottom: 14px; line-height: 1.9; color: var(--text-secondary); }
.content-area ul, .content-area ol { margin: 10px 0 20px 22px; color: var(--text-secondary); line-height: 2; }

/* === 表格 === */
.table-wrap { overflow-x: auto; margin: 20px 0; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: var(--primary); }
thead th { color: #fff; padding: 14px 18px; text-align: left; font-weight: 600; font-size: 14px; white-space: nowrap; }
thead th:first-child { border-radius: var(--radius) 0 0 0; }
thead th:last-child { border-radius: 0 var(--radius) 0 0; }
tbody td { padding: 13px 18px; border-bottom: 1px solid var(--bg-lighter); }
tbody tr:nth-child(even) { background: var(--bg-light); }
tbody tr:hover { background: rgba(200,150,62,0.04); }
tbody tr:last-child td:first-child { border-radius: 0 0 0 var(--radius); }
tbody tr:last-child td:last-child { border-radius: 0 0 var(--radius) 0; }

/* === 表单 === */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; color: var(--text); }
.form-group .required { color: #e53e3e; }
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background: #fff;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(200,150,62,0.1); }
textarea.form-control { min-height: 120px; resize: vertical; }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23718096' stroke-width='2' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }

/* === 联系页 === */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; }
.contact-info-panel {
    background: var(--primary);
    color: #fff;
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.contact-info-panel::after {
    content: "";
    position: absolute;
    bottom: -60px; right: -60px;
    width: 200px; height: 200px;
    background: rgba(255,255,255,0.03);
    border-radius: 50%;
}
.contact-info-panel h3 { font-size: 24px; margin-bottom: 28px; position: relative; z-index: 1; }
.contact-info-item {
    display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-start;
    position: relative; z-index: 1;
}
.contact-info-item .ci-icon {
    width: 42px; height: 42px;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
}
.contact-info-item strong { display: block; font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 2px; font-weight: 400; }
.contact-info-item p { font-size: 15px; line-height: 1.6; }
.contact-form-panel h3 { font-size: 24px; margin-bottom: 6px; color: var(--primary); }
.contact-form-panel > p { color: var(--text-light); margin-bottom: 24px; }

/* === 关于页时间线 === */
.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 32px; }
.timeline::before {
    content: "";
    position: absolute;
    left: 9px; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--primary-light));
}
.timeline-item {
    position: relative;
    padding-bottom: 32px;
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: -27px; top: 4px;
    width: 14px; height: 14px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px var(--accent);
}
.timeline-item:last-child::before { background: var(--primary); box-shadow: 0 0 0 3px var(--primary); }
.timeline-year { font-size: 14px; font-weight: 700; color: var(--accent); margin-bottom: 4px; letter-spacing: 1px; }
.timeline-item h3 { font-size: 18px; color: var(--primary); margin-bottom: 4px; }
.timeline-item p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* === FAQ === */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { margin-bottom: 12px; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--accent); }
.faq-q {
    background: #fff;
    padding: 16px 24px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: var(--transition);
    color: var(--primary);
}
.faq-q::after { content: "+"; font-size: 22px; color: var(--accent); font-weight: 300; transition: var(--transition); }
.faq-item.open .faq-q { background: var(--bg-light); }
.faq-item.open .faq-q::after { content: "−"; }
.faq-a { padding: 0 24px; font-size: 14px; color: var(--text-light); line-height: 1.8; max-height: 0; overflow: hidden; transition: all 0.35s ease; }
.faq-item.open .faq-a { padding: 16px 24px; max-height: 300px; }

/* === CTA区块 === */
.cta-section {
    background: linear-gradient(160deg, #060e1f 0%, #0a1f44 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    top: -150px; left: calc(50% - 300px);
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(200,150,62,0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-section .container { position: relative; z-index: 1; }
.cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { font-size: 17px; opacity: 0.7; margin-bottom: 28px; }

/* === 提示消息 === */
.alert { padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 14px; }
.alert-success { background: #f0fff4; color: #22543d; border: 1px solid #c6f6d5; }
.alert-error { background: #fff5f5; color: #9b2c2c; border: 1px solid #fed7d7; }

/* === 页脚 === */
.site-footer {
    background: #060e1f;
    color: rgba(255,255,255,0.55);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1.5fr;
    gap: 40px;
}
.site-footer h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
    padding-bottom: 10px;
    position: relative;
}
.site-footer h4::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0;
    width: 28px; height: 2px;
    background: var(--accent);
    border-radius: 1px;
}
.site-footer p { font-size: 14px; line-height: 1.8; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a {
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}
.site-footer ul li a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-contact li { font-size: 14px; margin-bottom: 10px; display: flex; align-items: flex-start; gap: 8px; }
.footer-bottom {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.35);
}
.footer-bottom p { margin-bottom: 4px; }

/* === 回到顶部 === */
.back-to-top {
    position: fixed;
    bottom: 40px; right: 28px;
    width: 46px; height: 46px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 46px;
    font-size: 22px;
    text-decoration: none;
    box-shadow: 0 8px 24px rgba(10,31,68,0.3);
    opacity: 0; visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--accent); transform: translateY(-3px); }

/* === 响应式 === */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero h2 { font-size: 38px; }
    .hero-visual { display: none; }
    .card-grid-3 { grid-template-columns: 1fr; }
    .package-card.featured { transform: none; }
    .package-card.featured:hover { transform: translateY(-6px); }
    .contact-grid { grid-template-columns: 1fr; }
    .process-row { grid-template-columns: repeat(3, 1fr); }
    .process-row::before { display: none; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-list {
        display: none;
        position: absolute;
        top: 72px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        box-shadow: var(--shadow-lg);
        padding: 12px 0;
        border-top: 1px solid var(--border);
    }
    .nav-list.open { display: flex; }
    .nav-list > li > a { padding: 12px 28px; border-radius: 0; }
    .nav-list > li > a::after { display: none; }
    .nav-list > li.nav-cta { margin-left: 0; padding: 8px 28px; }
    .nav-list > li.nav-cta a { border-radius: var(--radius-sm); text-align: center; }
    .submenu { position: static; box-shadow: none; transform: none; padding-left: 20px; border: none; }
    .has-submenu:hover .submenu { display: none; }
    .has-submenu.open .submenu { display: block; }

    .hero { padding: 60px 0 80px; }
    .hero h2 { font-size: 30px; }
    .hero p { font-size: 16px; }
    .hero-stats { gap: 28px; flex-wrap: wrap; }
    .hero-stat .num { font-size: 28px; }
    .section { padding: 56px 0; }
    .section-header h2 { font-size: 26px; }
    .service-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .process-row { grid-template-columns: repeat(2, 1fr); }
    .page-banner h2 { font-size: 28px; }
    .top-bar .container { justify-content: center; }
    .top-contact { gap: 14px; }
}
@media (max-width: 480px) {
    .hero h2 { font-size: 26px; }
    .service-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .process-row { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .section-header h2 { font-size: 22px; }
    .logo-text h1 { font-size: 17px; }
}