/* ========================================
   南开蓝天救援队 官方网站 - 亮色调
   白背景 · 蓝色文字 · 专业救援风格
   ======================================== */

:root {
    --blue-900: #0d1b4c;
    --blue-800: #1a2e6e;
    --blue-700: #1e40af;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-400: #60a5fa;
    --blue-300: #93c5fd;
    --blue-100: #dbeafe;
    --blue-50: #eff6ff;
    --accent: #1e40af;
    --accent-light: #3b82f6;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-soft: #f1f5f9;
    --bg-card: #ffffff;
    --text-primary: #0d1b4c;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(13, 27, 76, 0.05);
    --shadow: 0 4px 12px rgba(13, 27, 76, 0.08);
    --shadow-lg: 0 12px 32px rgba(13, 27, 76, 0.12);
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
    --max-w: 1200px;

    /* 兼容组件别名 */
    --primary: var(--blue-600);
    --font-color: var(--text-primary);
    --font-muted: var(--text-secondary);
    --border-color: var(--border);
    --border-soft: var(--border-light);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

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

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    border: none;
    font-family: inherit;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--blue-800);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.3);
}
.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-outline:hover {
    background: var(--blue-50);
    transform: translateY(-2px);
}
.btn-ghost {
    background: var(--blue-50);
    color: var(--accent);
}
.btn-ghost:hover { background: var(--blue-100); }

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}
.nav-container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo-icon {
    width: 44px; height: 44px;
    background: transparent;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.nav-logo-icon .logo-img {
    width: 100%; height: 100%;
    object-fit: contain;
}
.nav-logo-text strong {
    font-size: 17px; font-weight: 700; color: var(--text-primary); display: block; line-height: 1.2;
}
.nav-logo-text small {
    font-size: 10px; color: var(--text-muted); letter-spacing: 1.5px;
}
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link {
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition);
}
.nav-link:hover { color: var(--accent); background: var(--blue-50); }
.nav-link.active { color: var(--accent); background: var(--blue-50); font-weight: 600; }
.nav-cta {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: #fff; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 14px;
    margin-left: 8px;
    animation: pulse 2s infinite;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(239, 68, 68, 0.4); }
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
}
.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-toggle span {
    display: block; width: 26px; height: 3px;
    background: var(--text-primary); border-radius: 2px; transition: all var(--transition);
}

/* ========== 轮播图 ========== */
.carousel {
    position: relative;
    margin-top: 72px;
    height: 360px; /* 原480缩小1/4 */
    overflow: hidden;
    background: var(--blue-900);
}
.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
}
.carousel-slide .slide-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
}
.carousel-slide .slide-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(13,27,76,0.75) 0%, rgba(30,64,175,0.55) 100%);
}
.slide-1 .slide-bg { background-image: url('../images/hero-1-emergency-2024.jpg'); background-size: cover; background-position: center; }
.slide-2 .slide-bg { background-image: url('../images/hero-2-multidomain-2024.jpg'); background-size: cover; background-position: center; }
.slide-3 .slide-bg { background-image: url('../images/hero-3-ai-platform-2024.jpg'); background-size: cover; background-position: center; }

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    padding: 0 24px;
    animation: fadeInUp 0.8s ease;
}
.slide-content .slide-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 13px;
    margin-bottom: 20px;
}
.slide-content h2 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}
.slide-content p {
    font-size: clamp(15px, 2vw, 18px);
    opacity: 0.9;
    margin-bottom: 28px;
    line-height: 1.7;
}
.slide-content .slide-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.slide-content .slide-btn-primary {
    background: #fff; color: var(--accent);
    padding: 14px 32px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 15px;
    display: inline-flex; align-items: center; gap: 8px;
    transition: all var(--transition);
    border: none; cursor: pointer; text-decoration: none;
}
.slide-content .slide-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.slide-content .slide-btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff; padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600; font-size: 15px;
    display: inline-flex; align-items: center; gap: 8px;
    transition: all var(--transition);
    border: 1px solid rgba(255,255,255,0.3);
    text-decoration: none;
}
.slide-content .slide-btn-secondary:hover { background: rgba(255,255,255,0.25); }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 轮播控制 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px; height: 48px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    color: #fff; font-size: 18px;
    cursor: pointer; z-index: 10;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.carousel-btn:hover { background: rgba(255,255,255,0.25); }
.carousel-btn.prev { left: 24px; }
.carousel-btn.next { right: 24px; }
.carousel-dots {
    position: absolute;
    bottom: 24px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 10px; z-index: 10;
}
.carousel-dots button {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    border: none; cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}
.carousel-dots button.active {
    background: #fff;
    width: 30px;
    border-radius: 5px;
}

/* ========== 通用 Section ========== */
.section { padding: 80px 0; }
.navbar + .section { padding-top: calc(80px + 72px); }
.navbar + main { padding-top: 112px; }
.section-alt { background: var(--bg-light); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 12px;
}
.section-title {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.section-line {
    width: 60px; height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--blue-400));
    border-radius: 2px;
    margin: 0 auto 20px;
}
.section-desc {
    color: var(--text-secondary);
    font-size: 16px;
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* 页面 Banner（二级页面用）*/
.page-banner {
    margin-top: 72px;
    padding: 60px 0 45px; /* 原80/60缩小1/4 */
    background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
    color: #fff;
    text-align: center;
}
.page-banner h1 {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 800;
    margin-bottom: 12px;
}
.page-banner p { opacity: 0.85; font-size: 16px; }
.breadcrumb {
    margin-top: 16px;
    font-size: 14px;
    opacity: 0.75;
}
.breadcrumb a { color: #fff; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 8px; }

/* ========== 首页核心救援服务 ========== */
.section-desc {
    max-width: 720px;
    margin: 16px auto 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}
.rescue-service-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 40px;
}
.rescue-svc-card {
    position: relative;
    display: block;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 36px 22px 28px;
    transition: all 0.35s ease;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}
.rescue-svc-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--blue-400) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.45s ease;
}
.rescue-svc-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.rescue-svc-card:hover::before { transform: scaleX(1); }
.svc-idx {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 14px;
    font-weight: 700;
    color: var(--blue-200);
    letter-spacing: 1px;
}
.svc-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    margin-bottom: 18px;
    box-shadow: 0 6px 18px rgba(24, 90, 188, 0.18);
}
.svc-icon.blue { background: linear-gradient(135deg, #1e88e5 0%, #0d47a1 100%); }
.svc-icon.green { background: linear-gradient(135deg, #43a047 0%, #1b5e20 100%); }
.svc-icon.orange { background: linear-gradient(135deg, #fb8c00 0%, #e65100 100%); }
.svc-icon.red { background: linear-gradient(135deg, #e53935 0%, #b71c1c 100%); }
.svc-icon.purple { background: linear-gradient(135deg, #8e24aa 0%, #4a148c 100%); }
.rescue-svc-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.rescue-svc-card > p {
    color: var(--text-secondary);
    font-size: 13.5px;
    line-height: 1.7;
    margin-bottom: 18px;
}
.svc-tags {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
}
.svc-tags li {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--blue-50);
    color: var(--accent);
    font-weight: 500;
}

/* 关键数据行 */
.key-data-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}
.key-data-card {
    background: linear-gradient(135deg, #ffffff 0%, #f7faff 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 24px 22px 22px;
    position: relative;
    transition: all 0.3s ease;
}
.key-data-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}
.kd-icon {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--blue-50);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.kd-num {
    font-size: 38px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
    margin-bottom: 6px;
    font-family: "Poppins", "PingFang SC", sans-serif;
}
.kd-num span {
    font-size: 18px;
    font-weight: 600;
    margin-left: 4px;
    color: var(--blue-500);
}
.kd-lb {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.kd-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-alt);
    border-radius: 10px;
    overflow: hidden;
}
.kd-bar > i {
    display: block;
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--blue-400) 100%);
}

/* ========== 救援响应流程 ========== */
.resp-flow {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 12px;
    margin-top: 48px;
}
.resp-step {
    flex: 1;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 36px 26px 30px;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
}
.resp-step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.resp-step-num {
    position: absolute;
    top: -18px;
    left: 26px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--blue-700) 100%);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
    box-shadow: 0 6px 16px rgba(24, 90, 188, 0.25);
}
.resp-step-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--blue-50);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 12px 0 20px;
}
.resp-step h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.resp-step p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
}
.resp-time {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    background: var(--blue-50);
    padding: 5px 12px;
    border-radius: 20px;
}
.resp-arrow {
    flex: 0 0 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 20px;
    opacity: 0.6;
}

/* ========== 首页特色亮点 ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.feature-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 22px 20px 20px;
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    box-shadow: var(--shadow-sm);
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.feature-card:hover::before {
    transform: scaleX(1);
}
.feature-index {
    position: absolute;
    top: 10px;
    right: 16px;
    font-size: 26px;
    font-weight: 800;
    color: var(--bg-soft);
    letter-spacing: -1px;
    line-height: 1;
    transition: color 0.3s ease;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    -webkit-text-stroke: 1px rgba(13, 27, 76, 0.06);
}
.feature-card:hover .feature-index {
    color: rgba(26, 115, 232, 0.12);
    -webkit-text-stroke: 1px transparent;
}
.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(13, 71, 161, 0.08));
    color: var(--primary);
    transition: all 0.35s ease;
}
.feature-icon i {
    font-size: 22px;
    line-height: 1;
}
.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    transform: rotate(-6deg) scale(1.08);
    box-shadow: 0 8px 24px rgba(26, 115, 232, 0.3);
}
.feature-card h4 {
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 6px;
    color: var(--font-color);
    line-height: 1.3;
}
.feature-card p {
    margin: 0;
    font-size: 13.5px;
    color: var(--font-muted);
    line-height: 1.6;
}


/* ========== 首页队员奉献 ========== */
.contribution-wrap {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.contribution-intro {
    max-width: 880px;
}
/* 表格卡片 */
.contrib-table-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.contrib-table-head,
.contrib-table-row {
    display: grid;
    grid-template-columns: 70px 1.2fr 1.2fr 2.6fr 1.1fr;
    align-items: stretch;
}
.contrib-table-head {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}
.contrib-table-head .contrib-table-cell {
    padding: 14px 16px;
    display: flex;
    align-items: center;
}
.contrib-table-row .contrib-table-cell {
    padding: 16px;
    font-size: 14px;
    color: var(--font-color);
    line-height: 1.6;
    border-bottom: 1px solid var(--border-soft);
    display: flex;
    align-items: center;
    transition: background 0.2s ease;
}
.contrib-table-row:nth-child(even) .contrib-table-cell {
    background: var(--bg-soft);
}
.contrib-table-row:last-child .contrib-table-cell {
    border-bottom: none;
}
.contrib-table-row:hover .contrib-table-cell {
    background: rgba(26, 115, 232, 0.04);
}
.contrib-table-row .contrib-table-cell:nth-child(1) {
    font-weight: 700;
    color: var(--primary);
    font-family: 'Helvetica Neue', Arial, sans-serif;
    font-size: 15px;
}
.contrib-value {
    font-weight: 700;
    color: var(--accent);
    font-family: 'Helvetica Neue', Arial, sans-serif;
    white-space: nowrap;
}
.contrib-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
}
.contrib-badge-blue {
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary);
}
.contrib-badge-green {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
}
.contrib-badge-gray {
    background: rgba(100, 116, 139, 0.12);
    color: #475569;
}

/* 底部汇总卡 */
.contrib-summary {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    box-shadow: var(--shadow-sm);
}
.contrib-summary-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    gap: 8px;
}
.contrib-summary-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 48px;
    background: var(--border-soft);
}
.contrib-summary-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: -0.5px;
}
.contrib-summary-num span {
    font-size: 0.5em;
    font-weight: 600;
    margin-left: 4px;
    color: var(--accent);
}
.contrib-summary-label {
    font-size: 14px;
    color: var(--font-muted);
    font-weight: 500;
}

/* ========== 队员奉献 统计条 ========== */
.contrib-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.contrib-stat-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 26px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform .25s ease, box-shadow .25s ease;
    position: relative;
    overflow: hidden;
}
.contrib-stat-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity .25s ease;
}
.contrib-stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.contrib-stat-card:hover::before { opacity: 1; }
.cs-icon {
    width: 52px; height: 52px;
    margin: 0 auto 14px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
}
.cs-icon.blue { background: #eff6ff; color: var(--primary); }
.cs-icon.green { background: #f0fdf4; color: #16a34a; }
.cs-icon.purple { background: #faf5ff; color: #9333ea; }
.cs-icon.orange { background: #fff7ed; color: #ea580c; }
.cs-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: -0.5px;
}
.cs-num span { font-size: 16px; font-weight: 600; margin-left: 3px; color: var(--accent); }
.cs-label { margin-top: 8px; font-size: 14px; color: var(--font-muted); font-weight: 500; }

/* ========== 队员关怀 图文轮播 ========== */
.care-section { margin-top: 8px; }
.care-header { margin-bottom: 28px; }
.care-carousel {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--blue-900, #0d1b4c);
}
.care-track {
    display: flex;
    transition: transform .7s cubic-bezier(.4,0,.2,1);
    will-change: transform;
}
.care-slide {
    min-width: 100%;
    position: relative;
    flex-shrink: 0;
    height: 420px;
}
.care-slide .care-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}
.care-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,27,76,.72) 0%, rgba(14,116,144,.35) 50%, rgba(13,27,76,.55) 100%);
}
.care-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 44px 52px;
    color: #fff;
    max-width: 620px;
}
.care-content .care-icon {
    width: 54px; height: 54px;
    border-radius: 14px;
    background: rgba(255,255,255,.16);
    backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
}
.care-content .care-icon i { color: #fff; }
.care-content h3 { font-size: 30px; font-weight: 800; margin-bottom: 12px; }
.care-content p { font-size: 15px; line-height: 1.8; opacity: .95; color: #eef2ff; max-width: 520px; }
.care-content .care-tags { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.care-content .care-tag {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.22);
    color: #fff;
}
.care-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 46px; height: 46px;
    border-radius: 50%;
    background: rgba(255,255,255,.16);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.28);
    color: #fff;
    font-size: 17px;
    cursor: pointer;
    z-index: 5;
    transition: all .2s ease;
}
.care-arrow:hover { background: var(--primary); border-color: var(--primary); }
.care-arrow.prev { left: 20px; }
.care-arrow.next { right: 20px; }
.care-dots {
    position: absolute;
    left: 0; right: 0;
    bottom: 20px;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 5;
}
.care-dot {
    width: 26px; height: 5px;
    border-radius: 3px;
    border: none;
    background: rgba(255,255,255,.4);
    cursor: pointer;
    transition: all .25s ease;
    padding: 0;
}
.care-dot.active { width: 40px; background: #fff; }

/* ========== 奉献明细 左-右布局 ========== */
.contrib-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 28px;
    align-items: start;
}
.contrib-left { min-width: 0; }
.contrib-left .contrib-table-card { overflow: hidden; }
/* 右侧暖心瞬间 */
.warm-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.warm-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--font-color);
}
.warm-title i { color: var(--accent); }
.warm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.warm-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 128px;
    cursor: pointer;
    display: block;
    text-decoration: none;
}
.warm-item .wimg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .35s ease; }
.warm-item:hover .wimg { transform: scale(1.08); }
.warm-item::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(13,27,76,.78), rgba(13,27,76,.05) 70%); }
.warm-item .wlabel {
    position: absolute;
    left: 10px; right: 10px; bottom: 10px;
    z-index: 2;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    text-shadow: 0 1px 4px rgba(0,0,0,.4);
}
.join-card {
    margin-top: 18px;
    border-radius: 16px;
    padding: 30px 26px;
    background: #fff;
    color: var(--font-color);
    text-align: center;
    border: 1px solid #e3ebfb;
    box-shadow: 0 10px 30px rgba(13,27,76,.08);
    position: relative;
    overflow: hidden;
}
.join-card::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 4px;
    background: linear-gradient(90deg, #f87171, #fbbf24, #34d399, #3b82f6);
}
.join-card .jc-icon {
    width: 52px; height: 52px;
    margin: 0 auto 14px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    color: #fff;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
}
.join-card h4 { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.join-card p { font-size: 13.5px; color: var(--font-muted); line-height: 1.8; margin-bottom: 20px; }
.join-card .join-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), #1d4ed8);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    box-shadow: 0 8px 18px rgba(30,64,175,.28);
    transition: all .25s ease;
}
.join-card .join-btn:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 12px 26px rgba(30,64,175,.36); }
.join-card .join-btn i { color:#fff; }

@media (max-width: 992px) {
    .contrib-stats { grid-template-columns: repeat(2, 1fr); }
    .contrib-layout { grid-template-columns: 1fr; }
    .care-slide { height: 360px; }
    .care-content { padding: 32px 28px; }
}
@media (max-width: 640px) {
    .contrib-stats { grid-template-columns: 1fr 1fr; }
    .care-slide { height: 320px; }
    .care-content { padding: 26px 20px; }
    .care-content h3 { font-size: 24px; }
    .warm-grid { grid-template-columns: repeat(4, 1fr); }
    .warm-item { height: 96px; }
}

/* ========== 归属与温度 情感模块 ========== */
.belong-intro {
    max-width: 760px;
    margin: 0 auto 30px;
    text-align: center;
    color: var(--font-muted);
    font-size: 15px;
    line-height: 1.9;
}
.belong-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.empathy-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 30px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform .28s ease, box-shadow .28s ease;
}
.empathy-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #f87171, #fbbf24, #34d399, #60a5fa);
    opacity: 0;
    transition: opacity .28s ease;
}
.empathy-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.empathy-card:hover::before { opacity: 1; }
.empathy-icon {
    width: 64px; height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 26px;
    color: #fff;
}
.empathy-icon.red { background: linear-gradient(135deg, #f87171, #ef4444); }
.empathy-icon.amber { background: linear-gradient(135deg, #fbbf24, #f59e0b); }
.empathy-icon.green { background: linear-gradient(135deg, #34d399, #10b981); }
.empathy-icon.sky { background: linear-gradient(135deg, #60a5fa, #3b82f6); }
.empathy-num {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .5px;
    color: #94a3b8;
    margin-bottom: 6px;
}
.empathy-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--font-color);
    margin-bottom: 10px;
}
.empathy-desc {
    font-size: 13.5px;
    line-height: 1.8;
    color: var(--font-muted);
}
/* 队员心语 */
.voice-band {
    margin-top: 60px;
    border-radius: 20px;
    padding: 52px 40px;
    background: linear-gradient(135deg, #0d1b4c 0%, #1e3a8a 55%, #14532d 160%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.voice-band::before {
    content: '\f10d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: -30px; right: 10px;
    font-size: 190px;
    color: rgba(255,255,255,.06);
}
.voice-head {
    text-align: center;
    margin-bottom: 34px;
}
.voice-head .voice-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.2);
    margin-bottom: 14px;
}
.voice-head h3 { font-size: 28px; font-weight: 800; }
.voice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.voice-card {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 16px;
    padding: 26px 24px;
    backdrop-filter: blur(4px);
}
.voice-card .vq { font-size: 15px; line-height: 1.9; color: #eef2ff; margin-bottom: 16px; }
.voice-card .vq i { color: #fbbf24; margin-right: 6px; }
.voice-card .va { font-size: 12.5px; color: rgba(255,255,255,.7); letter-spacing: 1px; }
@media (max-width: 992px) {
    .belong-grid { grid-template-columns: repeat(2, 1fr); }
    .voice-grid { grid-template-columns: 1fr; }
    .voice-band { padding: 40px 24px; }
}
@media (max-width: 640px) {
    .belong-grid { grid-template-columns: 1fr; }
}

/* ========== 首页功能模块 ========== */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}
.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.module-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.module-icon {
    width: 56px; height: 56px;
    background: var(--blue-50);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 26px;
    margin-bottom: 20px;
}
.module-card h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.module-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}
.module-link {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition);
}
.module-card:hover .module-link { gap: 10px; }

/* 首页统计 */
.stats-bar {
    background: linear-gradient(135deg, var(--accent) 0%, var(--blue-700) 100%);
    color: #fff;
    border-radius: var(--radius);
    padding: 56px 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.stats-bar .stat {
    padding: 0 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.stats-bar .stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 48px;
    width: 1px;
    background: rgba(255, 255, 255, 0.25);
}
.stats-bar .stat-num {
    font-size: clamp(40px, 6vw, 56px);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.5px;
    color: #fff;
}
.stats-bar .stat-num span {
    font-size: 0.45em;
    font-weight: 600;
    margin-left: 4px;
    vertical-align: baseline;
    opacity: 0.9;
}
.stats-bar .stat-label {
    font-size: 15px;
    opacity: 0.9;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* ========== 团队架构图 ========== */
.team-arch {
    max-width: 900px;
    margin: 0 auto;
}
.arch-root {
    text-align: center;
    margin-bottom: 48px;
}
.arch-node {
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: var(--radius);
    padding: 16px 28px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
}
.arch-node .arch-icon {
    width: 44px; height: 44px;
    background: var(--accent);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 20px;
}
.arch-node .arch-info strong {
    display: block;
    font-size: 18px;
    color: var(--text-primary);
}
.arch-node .arch-info small {
    font-size: 13px;
    color: var(--text-secondary);
}
.arch-connector {
    width: 2px;
    height: 32px;
    background: var(--blue-300);
    margin: 0 auto;
}
.arch-branches {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}
.arch-branch {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}
.arch-branch:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.arch-branch .branch-icon {
    width: 48px; height: 48px;
    background: var(--blue-50);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 22px;
    margin: 0 auto 12px;
}
.arch-branch h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.arch-branch p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 团队成员卡片 */
.team-members {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 48px;
}
.member-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: all var(--transition);
}
.member-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.member-avatar {
    width: 80px; height: 80px;
    background: linear-gradient(135deg, var(--accent), var(--blue-500));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 32px;
    margin: 0 auto 16px;
}
.member-card h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.member-card .member-role {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}
.member-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ========== 服务卡片 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.service-icon {
    width: 64px; height: 64px;
    background: var(--blue-50);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 30px;
    margin-bottom: 20px;
}
.service-card h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.service-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

/* ========== 新闻列表 ========== */
.news-list { max-width: 800px; margin: 0 auto; }
.news-item {
    display: flex;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}
.news-item:last-child { border-bottom: none; }
.news-item:hover .news-title { color: var(--accent); }
.news-tag-sm {
    flex-shrink: 0;
    width: 64px; height: 64px;
    background: var(--blue-50);
    border-radius: var(--radius);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    color: var(--accent);
}
.news-tag-sm .month { font-size: 11px; font-weight: 500; }
.news-tag-sm .day { font-size: 22px; font-weight: 800; line-height: 1; }
.news-body { flex: 1; }
.news-category {
    display: inline-block;
    padding: 2px 10px;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}
.news-category.urgent { background: #fef2f2; color: var(--danger); }
.news-title {
    font-size: 17px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    transition: color var(--transition);
}
.news-excerpt { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin-bottom: 8px; }
.news-meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-muted); }
.news-thumb {
    flex-shrink: 0;
    width: 180px; height: 110px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-soft);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); display: block; }
.news-item:hover .news-thumb img { transform: scale(1.05); }
@media (max-width: 640px) {
    .news-thumb { width: 110px; height: 75px; }
    .footer-cert-cta { padding: 26px 0; }
    .footer-cert-cta .cta-left h3 { font-size: 18px; }
    .footer-cert-cta .mini-form { grid-template-columns: 1fr 1fr; }
    .footer-cert-cta .mini-form .mini-btn { grid-column: 1 / -1; justify-content: center; }
    .footer-cert-cta .mini-form .mini-form-name { grid-column: 1 / -1; }
}

/* ========== 联系方式 ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.contact-info-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}
.contact-form-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}
.emergency-box {
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: #fff;
    border-radius: var(--radius);
    margin-bottom: 24px;
}
.emergency-box i {
    font-size: 36px;
    margin-bottom: 12px;
}
.emergency-box .hotline {
    font-size: 32px;
    font-weight: 800;
    display: block;
    margin: 8px 0;
}
.contact-row {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-row i {
    width: 40px; height: 40px;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-row h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.contact-row p {
    font-size: 14px;
    color: var(--text-secondary);
}
.social-row {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}
.social-row a {
    width: 40px; height: 40px;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.social-row a:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

.contact-form .form-field {
    margin-bottom: 18px;
}
.contact-form label {
    display: block;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 6px;
    font-weight: 500;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition);
    background: var(--bg);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* ========== 爱心企业 ========== */
.enterprises-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.enterprise-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
}
.enterprise-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.enterprise-logo {
    width: 80px; height: 80px;
    background: var(--blue-50);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 32px;
    margin: 0 auto 16px;
}
.enterprise-card h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.enterprise-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.enterprise-total {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent);
}

/* ========== 视频 ========== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
}
.video-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.video-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--bg-soft);
    position: relative;
    overflow: hidden;
}
.video-thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.video-thumb .play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.3);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 48px;
    transition: all var(--transition);
}
.video-card:hover .play-overlay {
    background: rgba(30, 64, 175, 0.5);
}
.video-info {
    padding: 16px 20px;
}
.video-info h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.video-info p {
    font-size: 13px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.video-categories {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.video-categories button {
    padding: 6px 16px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition);
}
.video-categories button.active,
.video-categories button:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ========== Footer ========== */
.footer {
    background: var(--blue-900);
    color: rgba(255,255,255,0.8);
    padding: 0 0 0;
}
/* 证书查询快捷入口（页脚顶部横条） */
.footer-cert-cta {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    padding: 36px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-cert-cta .container {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 40px;
    align-items: center;
}
.footer-cert-cta .cta-left h3 {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-cert-cta .cta-left h3 i {
    color: #fde047;
}
.footer-cert-cta .cta-left p {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}
.footer-cert-cta .cta-left .cta-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.15);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    color: #fff;
}
.footer-cert-cta .cta-right {
    background: #fff;
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: 0 10px 30px rgba(13, 27, 76, 0.3);
}
.footer-cert-cta .mini-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 10px;
    align-items: end;
}
.footer-cert-cta .mini-form label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 5px;
}
.footer-cert-cta .mini-form label .req { color: #b91c1c; }
.footer-cert-cta .mini-form input {
    width: 100%;
    padding: 9px 11px;
    font-size: 13px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    outline: none;
    transition: all .2s;
}
.footer-cert-cta .mini-form input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.footer-cert-cta .mini-btn {
    padding: 10px 18px;
    background: linear-gradient(135deg, #0d1b4c, #1e3a8a);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    transition: all .2s;
    box-shadow: 0 4px 12px rgba(13,27,76,.35);
}
.footer-cert-cta .mini-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(13,27,76,.45);
}
.footer-cert-cta .mini-form .tip {
    grid-column: 1 / -1;
    font-size: 11px;
    color: #64748b;
    margin-top: -2px;
}
.footer-main {
    padding: 56px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 2.2fr 1.2fr;
    gap: 48px;
    margin-bottom: 40px;
    align-items: start;
}
.footer-col h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h5::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 26px;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, rgba(59,130,246,0));
    border-radius: 2px;
}
.footer-col a {
    display: block;
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    padding: 4px 0;
    transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }
/* 快速链接横排 */
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px 12px;
}
.footer-col .footer-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    padding: 6px 14px;
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: 20px;
    font-size: 13px;
    color: rgba(255,255,255,0.75);
    transition: all 0.25s ease;
}
.footer-col .footer-links a:hover {
    color: #fff;
    border-color: #3b82f6;
    background: rgba(59,130,246,0.12);
}
.footer-col p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.7);
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}
.footer-brand-icon {
    width: 48px; height: 48px;
    background: transparent;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.footer-brand-icon .footer-logo-img {
    width: 100%; height: 100%;
    object-fit: contain;
}
.footer-brand h4 {
    color: #fff;
    font-size: 16px;
}
.footer-brand small {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
}
.footer-about {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.7);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}
.footer-bottom p { margin: 4px 0; }

/* ========== 关于我们页 ========== */
.about-hero {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
}
.about-hero-text h3 {
    font-size: clamp(24px, 3vw, 30px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}
.about-hero-text p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 16px;
}
.about-feature-list {
    list-style: none;
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.about-feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
}
.about-feature-list i { color: var(--accent); font-size: 18px; }
.about-hero-visual {
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: var(--radius);
    padding: 48px 32px;
    text-align: center;
}
.about-hero-visual .big-icon {
    width: 96px; height: 96px;
    background: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 40px;
    margin: 0 auto 24px;
    box-shadow: var(--shadow);
}
.about-hero-visual blockquote {
    font-size: 17px;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.8;
    margin-bottom: 16px;
    font-style: italic;
}
.about-hero-visual cite {
    color: var(--text-secondary);
    font-size: 14px;
    font-style: normal;
}
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 32px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 8px; top: 4px; bottom: 4px;
    width: 2px;
    background: linear-gradient(var(--blue-300), var(--blue-100));
}
.timeline-item {
    position: relative;
    padding-bottom: 32px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
    content: '';
    position: absolute;
    left: -28px; top: 6px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--accent);
}
.timeline-year {
    display: inline-block;
    color: var(--accent);
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 8px;
}
.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    transition: all var(--transition);
}
.timeline-content:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateX(4px);
}
.timeline-content h4 {
    font-size: 17px;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.timeline-content p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 救援服务页 ========== */
.service-detail {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}
.service-detail:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.service-icon-lg {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 30px;
    margin-bottom: 20px;
}
.service-detail h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.service-detail p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}
.service-list {
    list-style: none;
    margin-top: auto;
}
.service-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 4px 0;
    line-height: 1.6;
}
.service-list i {
    color: var(--success);
    font-size: 12px;
    margin-top: 4px;
    flex-shrink: 0;
}
.cta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--blue-700) 100%);
    color: #fff;
    padding: 40px 48px;
    border-radius: var(--radius);
}
.cta-bar h3 { font-size: 22px; margin-bottom: 6px; }
.cta-bar p { font-size: 15px; opacity: 0.85; }
.cta-bar .btn {
    background: #fff;
    color: var(--accent);
    font-size: 18px;
    font-weight: 700;
    padding: 14px 32px;
    flex-shrink: 0;
}
.cta-bar .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ========== 团队架构页 ========== */
.team-org { max-width: 1000px; margin: 0 auto; }
.org-chart { text-align: center; }
.org-node.top {
    display: inline-block;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: var(--radius);
    padding: 24px 40px;
    box-shadow: var(--shadow);
    min-width: 240px;
    text-align: center;
}
.org-node.top .role-title {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}
.org-node.top .role-title i { margin-right: 6px; }
.org-node.top .role-name {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.org-node.top .role-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}
.org-connector {
    width: 2px;
    height: 40px;
    background: var(--blue-300);
    margin: 0 auto;
}
.org-branches {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.org-node-sm {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}
.org-node-sm:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.org-node-sm .sm-title {
    color: var(--accent);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}
.org-node-sm .sm-title i { margin-right: 6px; }
.org-node-sm .sm-desc {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
}
.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.member-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-top: 8px;
}

/* ========== 统计数据轮播卡片 ========== */
.stats-carousel {
    position: relative;
    background: linear-gradient(135deg, var(--accent) 0%, var(--blue-700) 100%);
    border-radius: var(--radius);
    padding: 40px 56px 56px;
    box-shadow: var(--shadow-lg);
}
.stats-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 42px; height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    z-index: 5;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.stats-arrow:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: translateY(-50%) scale(1.06);
}
.stats-arrow.prev { left: 14px; }
.stats-arrow.next { right: 14px; }
.stats-viewport {
    overflow: hidden;
    padding: 8px 4px;
}
.stats-track {
    display: flex;
    gap: 20px;
    transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}
.stats-slide-card {
    flex: 0 0 calc((100% - 60px) / 4);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    padding: 32px 24px 28px;
    text-align: center;
    color: #fff;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}
.stats-slide-card:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.3);
}
.stats-card-icon {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}
.stats-card-num {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.5px;
    margin-bottom: 10px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}
.stats-card-num span {
    font-size: 0.45em;
    font-weight: 600;
    margin-left: 4px;
    opacity: 0.9;
}
.stats-card-label {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    opacity: 0.95;
}
.stats-card-desc {
    font-size: 13px;
    opacity: 0.78;
    line-height: 1.65;
    margin: 0;
}
.stats-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
}
.stats-dots button {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition);
}
.stats-dots button.active {
    background: #fff;
    width: 24px;
    border-radius: 5px;
}

/* ========== 双栏通用布局 ========== */
.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: stretch;
}
.two-col-grid.reverse .col-block:first-child { order: 2; }
.two-col-grid.reverse .col-block:last-child { order: 1; }
.col-block {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}
.block-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 8px;
}
.block-header .section-tag { margin-bottom: 6px; }
.block-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}
.block-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: gap var(--transition);
}
.block-more:hover { gap: 10px; }
.block-line {
    width: 44px; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--blue-400));
    border-radius: 2px;
    margin: 8px 0 24px;
}

/* ========== 爱心企业行列表 ========== */
.enterprise-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.enterprise-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.enterprise-row:hover {
    background: var(--blue-50);
    transform: translateX(4px);
}
.enterprise-avatar {
    flex-shrink: 0;
    width: 46px; height: 46px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.enterprise-info {
    flex: 1;
    min-width: 0;
}
.enterprise-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.enterprise-info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}
.enterprise-info p strong {
    color: var(--accent);
    font-weight: 700;
}
.enterprise-badge {
    flex-shrink: 0;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary);
}
.enterprise-badge.green {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
}
.enterprise-badge.gray {
    background: rgba(100, 116, 139, 0.12);
    color: #475569;
}

/* ========== 重要活动卡片列表 ========== */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.activity-card {
    display: flex;
    gap: 14px;
    padding: 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.activity-card:hover {
    background: var(--blue-50);
    transform: translateX(4px);
}
.activity-thumb {
    flex-shrink: 0;
    width: 128px;
    aspect-ratio: 16/10;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    position: relative;
    overflow: hidden;
}
.activity-thumb.alt-1 { background: linear-gradient(135deg, #059669, #34d399); }
.activity-thumb.alt-2 { background: linear-gradient(135deg, #7c2d12, #ea580c); }
.activity-thumb .play-icon {
    position: absolute;
    inset: 0;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 22px;
    background: rgba(0,0,0,0.22);
    transition: all var(--transition);
}
.activity-thumb .play-icon i {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    padding-left: 3px;
}
.activity-card:hover .activity-thumb .play-icon {
    background: rgba(30, 64, 175, 0.4);
}
.activity-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.activity-cat {
    align-self: flex-start;
    display: inline-block;
    padding: 2px 10px;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}
.activity-body h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.activity-meta {
    font-size: 12.5px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========== 加入我们卡片 ========== */
.join-card {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.04), rgba(59, 130, 246, 0.06));
    border: 1px solid var(--blue-100);
    border-radius: var(--radius-sm);
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.join-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}
.join-icon {
    flex-shrink: 0;
    width: 52px; height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--blue-500));
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    box-shadow: 0 6px 16px rgba(30, 64, 175, 0.25);
}
.join-card-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.join-card-header p {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}
.join-channels {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}
.join-chan {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.join-chan:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 14px rgba(30, 64, 175, 0.1);
    transform: translateX(4px);
}
.chan-icon {
    flex-shrink: 0;
    width: 40px; height: 40px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    color: #fff;
}
.chan-icon.blue { background: linear-gradient(135deg, #2563eb, #3b82f6); }
.chan-icon.green { background: linear-gradient(135deg, #059669, #10b981); }
.chan-icon.orange { background: linear-gradient(135deg, #ea580c, #f59e0b); }
.join-chan > div:nth-child(2) { flex: 1; min-width: 0; }
.join-chan strong {
    display: block;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.join-chan span {
    font-size: 12.5px;
    color: var(--text-secondary);
}
.chan-arrow {
    color: var(--text-muted);
    font-size: 12px;
    transition: all var(--transition);
}
.join-chan:hover .chan-arrow {
    color: var(--accent);
    transform: translateX(3px);
}
.join-stats {
    margin-top: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 16px 12px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.join-stat {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.join-stat-num {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}
.join-stat-num span {
    font-size: 0.55em;
    font-weight: 600;
    margin-left: 2px;
}
.join-stat-lb {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ========== 首页新闻列表 ========== */
.home-news-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.home-news-item {
    display: flex;
    gap: 14px;
    padding: 16px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.home-news-item:hover {
    background: var(--blue-50);
    transform: translateX(-4px);
}
.home-news-date {
    flex-shrink: 0;
    width: 56px;
    text-align: center;
    padding: 8px 4px;
    background: linear-gradient(135deg, var(--accent), var(--blue-500));
    border-radius: 10px;
    color: #fff;
    box-shadow: 0 4px 10px rgba(30, 64, 175, 0.18);
}
.home-news-date .day {
    font-size: 22px;
    font-weight: 800;
    line-height: 1;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}
.home-news-date .month {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.9;
    font-weight: 500;
    letter-spacing: 0.5px;
}
.home-news-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.home-news-tag {
    align-self: flex-start;
    display: inline-block;
    padding: 2px 10px;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}
.home-news-tag.urgent {
    background: #fef2f2;
    color: var(--danger);
}
.home-news-body h4 {
    font-size: 15.5px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}
.home-news-item:hover .home-news-body h4 { color: var(--accent); }
.home-news-body p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.home-news-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: auto;
}
.home-news-meta i { margin-right: 3px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .stats-slide-card { flex-basis: calc((100% - 20px) / 2); }
    .stats-carousel { padding: 32px 40px 44px; }
    .two-col-grid { grid-template-columns: 1fr; gap: 24px; }
    .two-col-grid.reverse .col-block:first-child { order: 0; }
    .two-col-grid.reverse .col-block:last-child { order: 0; }
    .col-block { padding: 28px 24px; }
    .block-title { font-size: 22px; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); padding: 40px 20px; }
    .stats-bar .stat:nth-child(2)::after { display: none; }
    /* cert cta */
    .footer-cert-cta .container { grid-template-columns: 1fr; gap: 22px; }
    .stats-bar .stat { padding: 28px 20px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .feature-card { padding: 26px 20px 22px; }
    .modules-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .contrib-table-head,
    .contrib-table-row {
        grid-template-columns: 60px 1fr 1fr 2fr 1.2fr 0.9fr;
    }
    .contrib-summary {
        grid-template-columns: repeat(2, 1fr);
        padding: 28px 24px;
        gap: 28px 20px;
    }
    .contrib-summary-stat:nth-child(2)::after { display: none; }
    .contrib-summary-stat { padding: 0 10px; }
    .rescue-service-grid { grid-template-columns: repeat(3, 1fr); }
    .key-data-row { grid-template-columns: repeat(2, 1fr); }
    .resp-flow { flex-wrap: wrap; gap: 24px 12px; }
    .resp-step { flex: 0 0 calc(50% - 26px); }
    .resp-arrow:nth-of-type(2) { display: none; }
}
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow);
        gap: 8px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-cta {
        margin-left: 0;
        justify-content: center;
    }
    .carousel { height: 285px; } /* 原380缩小1/4 */
    .section { padding: 56px 0; }
    .navbar + .section { padding-top: calc(56px + 72px); }
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        padding: 32px 16px;
        border-radius: var(--radius-sm);
    }
    .stats-bar .stat { padding: 24px 12px; gap: 8px; }
    .stats-bar .stat:nth-child(2)::after { display: none; }
    .stats-bar .stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,0.15); }
    .stats-bar .stat-num { font-size: 36px; }
    .stats-bar .stat-label { font-size: 13px; }
    .features-grid { grid-template-columns: 1fr; gap: 16px; }
    .feature-card { padding: 24px 18px 20px; }
    .feature-icon { width: 56px; height: 56px; margin-bottom: 16px; }
    .feature-icon i { font-size: 24px; }
    .feature-index { font-size: 32px; }
    .feature-card h4 { font-size: 18px; }
    .feature-card p { font-size: 14px; line-height: 1.7; }
    .modules-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }

    /* 队员奉献表格：手机端 → 横向可滚动 */
    .contrib-table-card {
        overflow-x: auto;
    }
    .contrib-table-head,
    .contrib-table-row {
        grid-template-columns: 60px 110px 140px 280px 160px 100px;
        min-width: 850px;
    }
    .contrib-table-row .contrib-table-cell,
    .contrib-table-head .contrib-table-cell {
        padding: 12px 14px;
        font-size: 13.5px;
    }
    .contrib-summary {
        grid-template-columns: repeat(2, 1fr);
        padding: 24px 16px;
        gap: 24px 16px;
    }
    .contrib-summary-stat:nth-child(2)::after { display: none; }
    .contrib-summary-stat { padding: 0; }
    .contrib-summary-stat::after { display: none; }
    .contrib-summary-stat {
        padding: 16px 8px;
        border-radius: 12px;
        background: var(--bg-soft);
    }
    .contrib-summary-num { font-size: 32px; }
    .contrib-summary-label { font-size: 13px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .arch-branches { grid-template-columns: 1fr; }
    .about-hero { grid-template-columns: 1fr; gap: 32px; }
    .about-feature-list { grid-template-columns: 1fr; }
    .cta-bar { flex-direction: column; text-align: center; padding: 32px 24px; }
    .members-grid { grid-template-columns: 1fr; }
    .org-branches { grid-template-columns: 1fr; }

    /* 统计轮播：平板 1张/页 */
    .stats-slide-card { flex-basis: 100%; }
    .stats-carousel { padding: 28px 36px 36px; border-radius: var(--radius-sm); }
    .stats-arrow { width: 36px; height: 36px; font-size: 14px; }
    .stats-arrow.prev { left: 6px; }
    .stats-arrow.next { right: 6px; }
    .stats-card-num { font-size: 40px; }
    .stats-card-icon { width: 52px; height: 52px; font-size: 22px; }

    /* 双栏：平板 → 单栏 */
    .col-block { padding: 24px 20px; }
    .block-title { font-size: 20px; }
    .activity-thumb { width: 108px; }
    .enterprise-badge { padding: 3px 10px; font-size: 11.5px; }
    .home-news-date { width: 50px; }
    .home-news-date .day { font-size: 19px; }
    .join-stat-num { font-size: 20px; }
    .rescue-service-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 32px; }
    .rescue-svc-card { padding: 30px 20px 24px; }
    .svc-icon { width: 52px; height: 52px; font-size: 22px; }
    .rescue-svc-card h3 { font-size: 18px; }
    .key-data-row { grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 36px; }
    .kd-num { font-size: 32px; }
    .resp-flow { flex-direction: column; gap: 32px; margin-top: 40px; }
    .resp-step { flex: 0 0 auto; }
    .resp-arrow {
        flex: 0 0 auto;
        width: 100%;
        height: 20px;
        transform: rotate(90deg);
        opacity: 0.5;
    }
}
@media (max-width: 480px) {
    .nav-container { padding: 0 16px; }
    .container { padding: 0 16px; }
    .carousel { height: 225px; } /* 原300缩小1/4 */
    .slide-content h2 { font-size: 24px; }
    .slide-content p { font-size: 13px; }
    .btn { padding: 10px 20px; font-size: 14px; }
    .section { padding: 40px 0; }
    .stats-bar { grid-template-columns: 1fr; padding: 24px 16px; }
    .stats-bar .stat { padding: 20px 12px; }
    .stats-bar .stat::after { display: none !important; }
    .stats-bar .stat:not(:last-child) { border-bottom: 1px solid rgba(255,255,255,0.15); }
    .stats-bar .stat-num { font-size: 32px; }
    .stats-bar .stat-label { font-size: 12px; }

    /* 统计轮播：手机 */
    .stats-carousel { padding: 24px 12px 32px; }
    .stats-arrow { display: none; }
    .stats-viewport { padding: 4px 2px; }
    .stats-slide-card { padding: 26px 20px 22px; }
    .stats-card-icon { width: 48px; height: 48px; font-size: 20px; margin-bottom: 14px; }
    .stats-card-num { font-size: 34px; }
    .stats-card-label { font-size: 14.5px; margin-bottom: 8px; }
    .stats-dots { margin-top: 20px; }

    /* 双栏：手机 */
    .col-block { padding: 20px 16px; border-radius: var(--radius-sm); }
    .block-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .block-title { font-size: 20px; }
    .enterprise-row { padding: 12px 10px; gap: 10px; }
    .enterprise-avatar { width: 40px; height: 40px; font-size: 17px; border-radius: 10px; }
    .enterprise-info h4 { font-size: 14px; }
    .enterprise-info p { font-size: 12.5px; }
    .enterprise-badge { display: none; }
    .activity-card { flex-direction: column; padding: 10px; }
    .activity-thumb { width: 100%; }
    .join-card { padding: 18px; }
    .join-card-header { flex-direction: column; text-align: center; gap: 10px; }
    .join-chan { padding: 10px 12px; gap: 10px; }
    .chan-icon { width: 36px; height: 36px; font-size: 16px; border-radius: 9px; }
    .join-chan strong { font-size: 13.5px; }
    .join-chan span { font-size: 12px; }
    .join-stats { grid-template-columns: repeat(3, 1fr); padding: 12px 8px; gap: 6px; }
    .join-stat-num { font-size: 18px; }
    .join-stat-lb { font-size: 11.5px; }
    .home-news-item { flex-direction: column; gap: 10px; padding: 14px 12px; }
    .home-news-date {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 6px 10px;
    }
    .home-news-date .day { font-size: 17px; }
    .home-news-date .month { margin-top: 0; }
    .home-news-body h4 { font-size: 14.5px; }
    .home-news-body p { font-size: 12.5px; }
    .home-news-meta { flex-wrap: wrap; gap: 10px; }
    .section-title { font-size: 26px; }
    .section-desc { font-size: 14px; }
    .rescue-service-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 28px; }
    .rescue-svc-card { padding: 26px 18px 22px; }
    .svc-icon { width: 48px; height: 48px; font-size: 20px; margin-bottom: 14px; }
    .rescue-svc-card h3 { font-size: 17px; }
    .rescue-svc-card > p { font-size: 13px; }
    .svc-tags { padding-top: 14px; }
    .key-data-row { grid-template-columns: 1fr; gap: 14px; margin-top: 32px; }
    .key-data-card { padding: 20px 18px 18px; border-radius: var(--radius-sm); }
    .kd-icon { width: 36px; height: 36px; font-size: 16px; top: 16px; right: 16px; }
    .kd-num { font-size: 30px; }
    .kd-lb { font-size: 13px; }
    .resp-flow { gap: 28px; margin-top: 36px; }
    .resp-step { padding: 24px 18px 20px; border-radius: var(--radius-sm); }
    .resp-step-icon { width: 56px; height: 56px; font-size: 22px; margin-bottom: 16px; }
    .resp-step h4 { font-size: 17px; }
    .resp-step p { font-size: 13px; }
}

/* ========== 留言簿 ========== */
.mb-layout { max-width: 1180px; margin: 0 auto; }
.mb-notice {
    display: flex; gap: 12px; align-items: flex-start;
    background: #eff6ff; border: 1px solid #bfdbfe; border-radius: 12px;
    padding: 14px 18px; margin-bottom: 24px; font-size: 13.5px; color: #1e40af;
    line-height: 1.8;
}
.mb-notice i { font-size: 18px; margin-top: 2px; }
.mb-form-card {
    background: #fff; border: 1px solid var(--border-color); border-radius: 18px;
    padding: 28px 30px; box-shadow: var(--shadow-sm); margin-bottom: 36px;
}
.mb-form-card h3 { font-size: 18px; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.mb-form-card h3 i { color: var(--primary); }
.mb-cat-tabs { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.mb-cat-tab {
    padding: 9px 18px; border-radius: 999px; cursor: pointer; font-size: 13.5px; font-weight: 600;
    border: 1px solid var(--border-color); background: #f8fafc; color: var(--text-secondary);
    display: inline-flex; align-items: center; gap: 6px; transition: all .2s ease;
}
.mb-cat-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(30,64,175,.25); }
.mb-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.mb-form .mb-field { display: flex; flex-direction: column; gap: 6px; }
.mb-form .mb-field.full { grid-column: 1 / -1; }
.mb-form label { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.mb-form label .req { color: #dc2626; }
.mb-form input, .mb-form textarea {
    padding: 10px 14px; border: 1px solid #cbd5e1; border-radius: 10px; font-size: 14px;
    font-family: inherit; background: #fff; transition: border-color .2s; box-sizing: border-box;
}
.mb-form input:focus, .mb-form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30,64,175,.08); }
.mb-form textarea { resize: vertical; min-height: 96px; }
.mb-submit {
    margin-top: 6px; display: inline-flex; align-items: center; gap: 8px; justify-content: center;
    padding: 11px 26px; border-radius: 999px; border: none; cursor: pointer;
    background: linear-gradient(135deg, var(--primary), #1d4ed8); color: #fff; font-weight: 600; font-size: 14px;
    transition: all .25s ease;
}
.mb-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(30,64,175,.3); }
.mb-tip { font-size: 12px; color: var(--text-muted); margin-top: 10px; grid-column: 1 / -1; }

/* 公开留言墙 */
.mb-wall { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.mb-col { background: #fff; border: 1px solid var(--border-color); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-sm); }
.mb-col-head { padding: 16px 20px; display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; color: #fff; }
.mb-col-head.supervision { background: linear-gradient(135deg, #1e3a8a, #2563eb); }
.mb-col-head.normal { background: linear-gradient(135deg, #0f766e, #14b8a6); }
.mb-col-head .mb-count { font-size: 12px; font-weight: 500; background: rgba(255,255,255,.18); padding: 2px 10px; border-radius: 999px; }
.mb-list { max-height: 720px; overflow-y: auto; padding: 8px 0; }
.mb-item { padding: 18px 20px; border-bottom: 1px solid var(--border-soft); }
.mb-item:last-child { border-bottom: none; }
.mb-item .mb-subj { font-size: 14.5px; font-weight: 700; color: var(--font-color); margin-bottom: 6px; }
.mb-item .mb-src { font-size: 12.5px; color: var(--text-muted); margin-bottom: 6px; }
.mb-item .mb-src i { margin-right: 6px; color: var(--accent); }
.mb-item .mb-text { font-size: 13.5px; line-height: 1.8; color: var(--font-muted); }
.mb-empty { padding: 40px 20px; text-align: center; color: var(--text-muted); font-size: 14px; }
/* ========== 发展计划 ========== */
.dev-intro { max-width: 820px; margin: 0 auto 36px; text-align: center; color: var(--font-muted); font-size: 15.5px; line-height: 1.9; }
.dev-phase { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.phase-card { background: #fff; border: 1px solid var(--border-color); border-radius: 16px; padding: 26px 22px; box-shadow: var(--shadow-sm); position: relative; }
.phase-card .ph-no { font-size: 12px; letter-spacing: 1px; color: #94a3b8; margin-bottom: 8px; font-weight: 700; }
.phase-card .ph-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; margin-bottom: 14px; background: var(--primary); }
.phase-card .ph-icon.green { background: linear-gradient(135deg,#0e7490,#14b8a6); }
.phase-card .ph-icon.orange { background: linear-gradient(135deg,#ea580c,#f59e0b); }
.phase-card .ph-icon.violet { background: linear-gradient(135deg,#7c3aed,#8b5cf6); }
.phase-card h4 { font-size: 17px; margin-bottom: 10px; }
.phase-card p { font-size: 13.5px; color: var(--font-muted); line-height: 1.8; }
.focus-head { display: flex; align-items: baseline; gap: 12px; justify-content: center; margin-bottom: 8px; }
.focus-head .focus-tip { font-size: 12px; color: #d97706; font-weight: 600; }
/* 重点社会服务 */
.key-svc { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 24px 0 8px; }
.key-svc-card { background: #fff; border: 1px solid var(--border-color); border-radius: 18px; padding: 30px 26px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden; border-top: 4px solid var(--accent); transition: transform .25s ease, box-shadow .25s ease; }
.key-svc-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.key-svc-card.highlight::after { content: '重点项目'; position: absolute; top: 14px; right: -34px; transform: rotate(45deg); background: #e11d48; color: #fff; font-size: 11px; font-weight: 700; padding: 4px 36px; }
.key-svc-card .ks-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 24px; color: #fff; margin-bottom: 16px; }
.ks-icon.community { background: linear-gradient(135deg,#0e7490,#14b8a6); }
.ks-icon.youth { background: linear-gradient(135deg,#ea580c,#f97316); }
.key-svc-card h4 { font-size: 19px; margin-bottom: 8px; }
.key-svc-card .ks-sub { font-size: 13px; color: var(--text-secondary); font-weight: 600; margin-bottom: 12px; }
.key-svc-card p { font-size: 13.5px; color: var(--font-muted); line-height: 1.85; }
.key-svc-card .ks-list { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.key-svc-card .ks-list li { list-style: none; display: flex; gap: 8px; font-size: 13px; color: var(--font-muted); line-height: 1.7; }
.key-svc-card .ks-list li i { color: #10b981; margin-top: 3px; }
/* 其它工作重点 */
.focus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.focus-card { background: #fff; border: 1px solid var(--border-color); border-radius: 16px; padding: 24px 22px; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.focus-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.focus-card .fc-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 19px; color: #fff; margin-bottom: 14px; }
.fc-icon.a { background: linear-gradient(135deg,#2563eb,#3b82f6); }
.fc-icon.b { background: linear-gradient(135deg,#0e7490,#14b8a6); }
.fc-icon.c { background: linear-gradient(135deg,#9333ea,#a855f7); }
.focus-card h4 { font-size: 16px; margin-bottom: 8px; }
.focus-card p { font-size: 13.5px; color: var(--font-muted); line-height: 1.8; }
.dev-cta { margin-top: 30px; text-align: center; }
@media (max-width: 992px) {
    .mb-form { grid-template-columns: 1fr; }
    .mb-wall { grid-template-columns: 1fr; }
    .dev-phase { grid-template-columns: repeat(2, 1fr); }
    .key-svc { grid-template-columns: 1fr; }
    .focus-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .mb-form-card { padding: 20px 18px; }
    .dev-phase { grid-template-columns: 1fr; }
    .focus-grid { grid-template-columns: 1fr; }
}