/* ================================================
   山海货运线 - 全局样式
   设计风格：毛玻璃 + Windows Aero + 现代感
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;900&display=swap');

:root {
    --primary: #e8820c;
    --primary-dark: #c4680a;
    --primary-light: #f5a045;
    --accent: #2ecc71;
    --accent-blue: #3498db;
    --danger: #e74c3c;
    --warning: #f39c12;
    --success: #27ae60;

    --bg-deep: #060a14;
    --bg-dark: #0d1525;
    --bg-card: rgba(15, 22, 40, 0.75);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --bg-glass-hover: rgba(255, 255, 255, 0.08);

    --text-primary: #e8eaf0;
    --text-secondary: #8892a4;
    --text-muted: #4a5568;

    --border-glass: rgba(255, 255, 255, 0.10);
    --border-glow: rgba(232, 130, 12, 0.35);

    --aero-blur: blur(18px) saturate(1.8);
    --aero-blur-heavy: blur(28px) saturate(2.2);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45), 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 24px rgba(232, 130, 12, 0.25);
    --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.08);

    --nav-height: 68px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 15% 20%, rgba(232, 130, 12, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 85% 70%, rgba(52, 152, 219, 0.06) 0%, transparent 55%),
        radial-gradient(ellipse 100% 80% at 50% 100%, rgba(6, 10, 20, 0.9) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: rgba(6, 10, 20, 0.72);
    backdrop-filter: var(--aero-blur);
    -webkit-backdrop-filter: var(--aero-blur);
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 1px 0 rgba(255,255,255,0.04), 0 4px 24px rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 2px 12px rgba(232,130,12,0.4);
    position: relative;
    overflow: hidden;
}

.nav-logo-icon::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-md) var(--radius-md) 50% 50%;
}

.nav-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.nav-logo-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.nav-logo-sub {
    font-size: 10px;
    color: var(--primary);
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2px;
    margin-left: 32px;
    flex: 1;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--bg-glass-hover);
}

.nav-links a.active {
    color: var(--primary);
}

.nav-badge {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: var(--radius-full);
    margin-left: 4px;
    line-height: 16px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.nav-status {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.25);
    border-radius: var(--radius-full);
    padding: 5px 12px;
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

/* ===== 毛玻璃卡片 ===== */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--aero-blur);
    -webkit-backdrop-filter: var(--aero-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card), var(--shadow-inset);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    pointer-events: none;
}

.glass-card-inner {
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-lg);
}

/* Aero 效果卡片 */
.aero-card {
    background: linear-gradient(
        135deg,
        rgba(255,255,255,0.06) 0%,
        rgba(255,255,255,0.02) 50%,
        rgba(0,0,0,0.1) 100%
    );
    backdrop-filter: var(--aero-blur-heavy);
    -webkit-backdrop-filter: var(--aero-blur-heavy);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-xl);
    box-shadow:
        var(--shadow-card),
        inset 0 1px 0 rgba(255,255,255,0.1),
        inset 0 -1px 0 rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.aero-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 40%;
    background: linear-gradient(180deg, rgba(255,255,255,0.05), transparent);
    pointer-events: none;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-md) var(--radius-md) 50% 50%;
    pointer-events: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(232,130,12,0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    box-shadow: 0 6px 24px rgba(232,130,12,0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: rgba(255,255,255,0.18);
}

.btn-danger {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(231,76,60,0.3);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12.5px;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 15px;
    border-radius: var(--radius-lg);
}

/* ===== 表单样式 ===== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 11px 16px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: all var(--transition);
    outline: none;
    backdrop-filter: blur(8px);
}

.form-control:focus {
    border-color: var(--primary);
    background: rgba(232,130,12,0.05);
    box-shadow: 0 0 0 3px rgba(232,130,12,0.12);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

select.form-control option {
    background: var(--bg-dark);
    color: var(--text-primary);
}

/* ===== 徽章 ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-success { background: rgba(39,174,96,0.18); color: #2ecc71; border: 1px solid rgba(39,174,96,0.3); }
.badge-warning { background: rgba(243,156,18,0.18); color: #f39c12; border: 1px solid rgba(243,156,18,0.3); }
.badge-danger  { background: rgba(231,76,60,0.18);  color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }
.badge-info    { background: rgba(52,152,219,0.18);  color: #3498db; border: 1px solid rgba(52,152,219,0.3); }
.badge-muted   { background: rgba(74,85,104,0.3);   color: #8892a4; border: 1px solid rgba(74,85,104,0.3); }
.badge-primary { background: rgba(232,130,12,0.18); color: var(--primary); border: 1px solid rgba(232,130,12,0.3); }

/* ===== 进度条 ===== */
.progress-bar-wrap {
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius-full);
    height: 8px;
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--primary-light));
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 40px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4));
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { opacity: 0; transform: translateX(-20px); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: translateX(0); }
}

/* ===== 页面主体 ===== */
.page-main {
    padding-top: var(--nav-height);
    position: relative;
    z-index: 1;
}

/* ===== Hero 区块 ===== */
.hero {
    position: relative;
    min-height: 540px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(6,10,20,0.4) 0%, rgba(6,10,20,0.85) 70%, var(--bg-deep) 100%),
        linear-gradient(135deg, rgba(232,130,12,0.08) 0%, transparent 50%),
        url('') center/cover no-repeat;
    background-color: var(--bg-dark);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(232,130,12,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(232,130,12,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.5) 30%, rgba(0,0,0,0.5) 70%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1360px;
    margin: 0 auto;
    padding: 80px 24px 60px;
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-title {
    font-size: clamp(28px, 4vw, 46px);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.hero-title span {
    display: block;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 15.5px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    display: block;
}

.hero-stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== 章节标题 ===== */
.section {
    padding: 64px 0;
}

.section-inner {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-header {
    margin-bottom: 40px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-label::before {
    content: '';
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(22px, 3vw, 32px);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.3;
}

.section-desc {
    margin-top: 10px;
    font-size: 14.5px;
    color: var(--text-secondary);
    max-width: 560px;
}

/* ===== 网格布局 ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-asymm { display: grid; grid-template-columns: 3fr 2fr; gap: 32px; }

/* ===== 新闻卡片 ===== */
.news-card {
    transition: transform var(--transition), box-shadow var(--transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
    color: inherit;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card), 0 0 32px rgba(232,130,12,0.15);
}

.news-card-featured {
    grid-column: span 2;
}

.news-card-img {
    width: 100%;
    aspect-ratio: 16/7;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, rgba(232,130,12,0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--text-muted);
}

.news-card-body {
    padding: 20px 24px 24px;
}

.news-card-date {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.news-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 10px;
}

.news-card-excerpt {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Bug 列表 ===== */
.bug-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 16px;
    align-items: start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
    transition: background var(--transition);
}

.bug-item:last-child { border-bottom: none; }
.bug-item:hover { background: var(--bg-glass); }

.bug-id {
    font-size: 12px;
    font-family: 'Courier New', monospace;
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-glass);
    white-space: nowrap;
}

.bug-title {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.bug-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.bug-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    display: flex;
    gap: 12px;
}

/* ===== 成员卡片 ===== */
.member-card {
    padding: 28px 24px;
    text-align: center;
    transition: transform var(--transition);
}

.member-card:hover { transform: translateY(-4px); }

.member-avatar {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-lg);
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-dark), var(--bg-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    border: 2px solid rgba(232,130,12,0.3);
    box-shadow: 0 4px 16px rgba(232,130,12,0.2);
}

.member-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.member-role {
    font-size: 12.5px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 6px;
}

.member-dept {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.member-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 运营单位 ===== */
.operator-card {
    padding: 24px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: transform var(--transition);
}

.operator-card:hover { transform: translateY(-3px); }

.operator-logo {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    color: var(--primary);
}

.operator-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.operator-type {
    font-size: 11.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.operator-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 页脚 ===== */
.footer {
    background: rgba(6,10,20,0.95);
    border-top: 1px solid var(--border-glass);
    padding: 48px 0 24px;
    position: relative;
    z-index: 1;
}

.footer-inner {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.footer-brand-desc {
    font-size: 13.5px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-top: 14px;
    max-width: 280px;
}

.footer-col-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 13.5px;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-links a:hover { color: var(--primary); }

.footer-divider {
    border: none;
    border-top: 1px solid var(--border-glass);
    margin-bottom: 20px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12.5px;
    color: var(--text-muted);
}

/* ===== 提示消息 ===== */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(8px);
}

.alert-success { background: rgba(39,174,96,0.12); border: 1px solid rgba(39,174,96,0.3); color: #2ecc71; }
.alert-error   { background: rgba(231,76,60,0.12); border: 1px solid rgba(231,76,60,0.3); color: #e74c3c; }
.alert-warning { background: rgba(243,156,18,0.12); border: 1px solid rgba(243,156,18,0.3); color: #f39c12; }
.alert-info    { background: rgba(52,152,219,0.12); border: 1px solid rgba(52,152,219,0.3); color: #3498db; }

/* ===== 分割线装饰 ===== */
.divider-glow {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-glow) 40%, var(--border-glow) 60%, transparent 100%);
    margin: 48px 0;
}

/* ===== 图标风格数字 ===== */
.stat-widget {
    padding: 24px;
    text-align: center;
}

.stat-widget-num {
    font-size: 36px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1.1;
}

.stat-widget-label {
    font-size: 12.5px;
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 500;
}

/* ===== 不对称版式 ===== */
.asymm-section {
    display: grid;
    grid-template-columns: 5fr 4fr;
    gap: 40px;
    align-items: start;
}

.asymm-section.reverse {
    grid-template-columns: 4fr 5fr;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(232,130,12,0.4); }

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.anim-fadeInUp { animation: fadeInUp 0.55s ease both; }
.anim-delay-1  { animation-delay: 0.1s; }
.anim-delay-2  { animation-delay: 0.2s; }
.anim-delay-3  { animation-delay: 0.3s; }
.anim-delay-4  { animation-delay: 0.4s; }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-asymm, .asymm-section { grid-template-columns: 1fr; }
    .news-card-featured { grid-column: span 1; }
    .nav-links { display: none; }
    .hero-stats { gap: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ===== 选项卡 ===== */
.tab-nav {
    display: flex;
    gap: 4px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 5px;
    margin-bottom: 28px;
    width: fit-content;
}

.tab-btn {
    padding: 8px 20px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    transition: all var(--transition);
    font-family: inherit;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 2px 12px rgba(232,130,12,0.3);
}

.tab-btn:hover:not(.active) {
    color: var(--text-primary);
    background: var(--bg-glass);
}

/* ===== 表格 ===== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 11.5px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-glass);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    color: var(--text-secondary);
    vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-glass); color: var(--text-primary); }

/* ===== 3D 旋转车辆展示 ===== */
.hero-3d-wrap {
    position: relative;
    width: 460px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    perspective: 900px;
    perspective-origin: 50% 52%;
    margin-right: 12px;
}

/* 场景容器 */
.scene-3d {
    width: 440px;
    height: 240px;
    position: relative;
    perspective: 900px;
    transform-style: preserve-3d;
}

/* 立方体 */
.cube-3d {
    width: 440px;
    height: 240px;
    position: relative;
    transform-style: preserve-3d;
    animation: cube-auto-rotate 14s linear infinite;
    will-change: transform;
}

/* 暂停旋转（鼠标悬停） */
.hero-3d-wrap:hover .cube-3d {
    animation-play-state: paused;
}

@keyframes cube-auto-rotate {
    0%   { transform: rotateX(-8deg) rotateY(0deg); }
    100% { transform: rotateX(-8deg) rotateY(360deg); }
}

/* 面通用 */
.face {
    position: absolute;
    width: 440px;
    height: 240px;
    overflow: hidden;
    border-radius: 12px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.face img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 10px;
    user-select: none;
    pointer-events: none;
}

/* 正面 */
.face-front  { transform: translateZ(220px); }
/* 背面 */
.face-back   { transform: rotateY(180deg) translateZ(220px); }
/* 左侧 */
.face-left   {
    width: 440px;
    height: 240px;
    transform: rotateY(-90deg) translateZ(220px);
    opacity: 0.5;
}
/* 右侧 */
.face-right  {
    width: 440px;
    height: 240px;
    transform: rotateY(90deg) translateZ(220px);
    opacity: 0.5;
}
/* 顶面 */
.face-top {
    transform: rotateX(90deg) translateZ(120px);
    background: linear-gradient(180deg, rgba(232,130,12,0.06) 0%, rgba(13,21,37,0.85) 100%);
    border: 1px solid rgba(232,130,12,0.12);
}
.face-top-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255,255,255,0.04) 30%,
        rgba(255,255,255,0.07) 50%,
        rgba(255,255,255,0.04) 70%,
        transparent 100%
    );
}
/* 底面 */
.face-bottom {
    transform: rotateX(-90deg) translateZ(120px);
    background: rgba(6,10,20,0.9);
    border: 1px solid rgba(255,255,255,0.04);
}
.face-bottom-inner {
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center,
        rgba(232,130,12,0.1) 0%,
        transparent 70%
    );
}

/* 地面反射 */
.ground-reflect {
    position: absolute;
    bottom: -56px;
    left: 50%;
    transform: translateX(-50%);
    width: 380px;
    height: 80px;
    overflow: hidden;
    border-radius: 0 0 8px 8px;
    opacity: 0.22;
    pointer-events: none;
}

.ground-reflect img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    object-position: bottom;
    transform: scaleY(-1) translateY(-50%);
    filter: blur(3px) brightness(0.6);
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
    display: block;
    user-select: none;
    pointer-events: none;
}

/* 光晕环 */
.hero-glow-ring {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 320px;
    height: 28px;
    background: radial-gradient(ellipse at center,
        rgba(232,130,12,0.35) 0%,
        rgba(232,130,12,0.08) 55%,
        transparent 80%
    );
    border-radius: 50%;
    pointer-events: none;
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.7; transform: translateX(-50%) scaleX(1); }
    50%       { opacity: 1;   transform: translateX(-50%) scaleX(1.08); }
}

/* 悬浮徽标 */
.float-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 13px;
    border-radius: 20px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 0.3px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    white-space: nowrap;
    pointer-events: none;
    animation: badge-float 4s ease-in-out infinite;
}

.float-badge-1 {
    top: 10px;
    right: 0;
    background: rgba(232,130,12,0.18);
    border: 1px solid rgba(232,130,12,0.35);
    color: var(--primary-light);
    animation-delay: 0s;
}

.float-badge-2 {
    bottom: 40px;
    left: 0;
    background: rgba(52,152,219,0.16);
    border: 1px solid rgba(52,152,219,0.3);
    color: #5dade2;
    animation-delay: 1.8s;
}

@keyframes badge-float {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-7px); }
}

/* 响应式：小屏隐藏 3D 模块 */
@media (max-width: 1100px) {
    .hero-3d-wrap { display: none; }
}

/* ===== 备案信息栏 ===== */
.beian-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px 20px;
    padding: 12px 0 16px;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-bottom: 14px;
}

.beian-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
}

.beian-icon {
    width: 16px;
    height: 16px;
    object-fit: contain;
    opacity: 0.75;
    flex-shrink: 0;
    vertical-align: middle;
}

.beian-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 12px;
    transition: color var(--transition);
    white-space: nowrap;
}

.beian-link:hover {
    color: var(--primary);
}

.beian-divider {
    width: 1px;
    height: 12px;
    background: rgba(255,255,255,0.12);
    flex-shrink: 0;
}

/* ===== 第一期制作路线区域 ===== */
.route-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 28px;
    align-items: start;
}

/* 左侧信息面板 */
.route-info-panel {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* 起终点行 */
.route-point {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.route-point-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 3px;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.06);
}

.route-dot-start { background: #e8820c; box-shadow: 0 0 0 3px rgba(232,130,12,0.2); }
.route-dot-end   { background: #27ae60; box-shadow: 0 0 0 3px rgba(39,174,96,0.2);  }

.route-point-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.route-point-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.route-point-coord {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
    margin-top: 3px;
}

/* 连接线 */
.route-line-connector {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0 4px 4px;
}

.route-connector-track {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-left: 2px;
}

.route-connector-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.15);
}

.route-distance-badge {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(232,130,12,0.1);
    border: 1px solid rgba(232,130,12,0.2);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* 路段步骤列表 */
.route-step-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 11px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: background var(--transition);
}

.route-step-item:last-child { border-bottom: none; }
.route-step-item:hover { background: var(--bg-glass); }

.route-step-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(232,130,12,0.12);
    border: 1px solid rgba(232,130,12,0.25);
    color: var(--primary);
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}

.route-step-inst {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.route-step-dist {
    font-size: 11.5px;
    color: var(--text-muted);
    margin-top: 3px;
    font-family: 'Courier New', monospace;
}

/* 地图容器 */
.route-map-wrap {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-glass);
    background: var(--bg-dark);
    box-shadow: var(--shadow-card);
}

.route-map-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: rgba(13,21,37,0.9);
    border-bottom: 1px solid var(--border-glass);
    backdrop-filter: blur(12px);
}

.map-live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #27ae60;
    box-shadow: 0 0 0 3px rgba(39,174,96,0.2);
    animation: live-blink 2s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes live-blink {
    0%, 100% { box-shadow: 0 0 0 3px rgba(39,174,96,0.2); }
    50%       { box-shadow: 0 0 0 5px rgba(39,174,96,0.05); }
}

.map-ctrl-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.map-ctrl-btn:hover {
    background: rgba(232,130,12,0.12);
    border-color: rgba(232,130,12,0.3);
    color: var(--primary);
}

/* 加载遮罩 */
.map-overlay-loader {
    position: absolute;
    inset: 52px 0 0 0;
    background: rgba(6,10,20,0.75);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    font-size: 13px;
    color: var(--text-muted);
    backdrop-filter: blur(4px);
    z-index: 10;
    pointer-events: none;
}

.map-loader-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255,255,255,0.06);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 百度地图 logo 深色适配 */
#bmap-container .BMap_cpyCtrl,
#bmap-container .anchorBL {
    filter: brightness(0.6) !important;
}

/* 响应式 */
@media (max-width: 1000px) {
    .route-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    #bmap-container { height: 340px !important; }
}