/* ============================================
   锐捷NaaS网络厦门服务中心 - 主样式
   ============================================ */

:root {
    /* 色彩系统 */
    --primary: #E60033;
    --primary-dark: #B60024;
    --primary-light: #FF3366;
    --accent: #00C2D7;
    --dark: #0A1929;
    --dark-blue: #102B45;
    --mid-blue: #1E3A5F;
    --light-bg: #F7F9FC;
    --gray-50: #FAFBFC;
    --gray-100: #F2F4F7;
    --gray-200: #E4E7EB;
    --gray-300: #CBD2D9;
    --gray-500: #7B8794;
    --gray-700: #3E4C59;
    --gray-900: #102B45;
    --white: #FFFFFF;
    --black: #000000;
    
    /* 字体系统 */
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, Menlo, Consolas, "Courier New", monospace;
    
    /* 尺寸 */
    --max-width: 1280px;
    --header-height: 80px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(16, 43, 69, 0.06);
    --shadow-md: 0 4px 20px rgba(16, 43, 69, 0.08);
    --shadow-lg: 0 10px 40px rgba(16, 43, 69, 0.12);
    --shadow-red: 0 8px 24px rgba(230, 0, 51, 0.25);
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   重置和基础
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

/* ============================================
   通用布局
   ============================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: 100px 0;
}

.section-sm {
    padding: 60px 0;
}

.section-dark {
    background: var(--dark);
    color: var(--white);
}

.section-light {
    background: var(--light-bg);
}

.section-gradient {
    background: linear-gradient(135deg, #0A1929 0%, #102B45 50%, #1E3A5F 100%);
    color: var(--white);
}

/* ============================================
   标题样式
   ============================================ */
.section-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 4px 0;
    border-bottom: 2px solid var(--primary);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark);
}

.section-title-white {
    color: var(--white);
}

.section-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--gray-700);
    max-width: 720px;
}

.section-subtitle-white {
    color: rgba(255, 255, 255, 0.85);
}

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

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   顶部公告栏
   ============================================ */
.topbar {
    background: var(--dark);
    color: var(--white);
    font-size: 13px;
    height: 36px;
    display: flex;
    align-items: center;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.topbar-info {
    display: flex;
    gap: 24px;
    align-items: center;
    opacity: 0.85;
}

.topbar-info span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.topbar-info svg {
    width: 14px;
    height: 14px;
}

.topbar-tag {
    background: var(--primary);
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 12px;
}

/* ============================================
   页头导航
   ============================================ */
.header {
    position: sticky;
    top: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    height: var(--header-height);
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.95);
    max-width: 100vw;
    overflow: hidden;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-section img {
    height: 36px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.logo-text .name {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    white-space: nowrap;
    text-align: justify;
    text-align-last: justify;
    -moz-text-align-last: justify;
}

.logo-text .subtitle {
    font-size: 16px;
    color: var(--primary);
    font-weight: 700;
    margin-top: 2px;
    white-space: nowrap;
    text-align: justify;
    text-align-last: justify;
    -moz-text-align-last: justify;
}

.nav {
    display: flex;
    gap: 4px;
    align-items: center;
}

.nav a {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav a:hover {
    color: var(--primary);
    background: rgba(230, 0, 51, 0.04);
}

.nav a.active {
    color: var(--primary);
    font-weight: 600;
}

.nav a.active::after {
    content: '';
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.hotline-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.2;
    border-left: 1px solid var(--gray-200);
    padding-left: 20px;
}

.hotline-label {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.hotline-number {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-navbar {
    display: none;
    border-top: 1px solid var(--gray-100);
    background: rgba(255, 255, 255, 0.98);
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    margin: 5px 0;
    transition: var(--transition);
}

/* 移动端导航默认隐藏（桌面端不显示） */
.mobile-nav {
    display: none;
}

.mobile-overlay {
    display: none;
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
    position: relative;
    min-height: 720px;
    background: linear-gradient(135deg, #0A1929 0%, #102B45 40%, #1E3A5F 100%);
    color: var(--white);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(230, 0, 51, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 194, 215, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle, rgba(0, 194, 215, 0.4) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.15;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 80px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(230, 0, 51, 0.15);
    border: 1px solid rgba(230, 0, 51, 0.3);
    border-radius: 100px;
    color: #FF6680;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero-title .highlight {
    color: var(--primary);
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(230, 0, 51, 0.2);
    z-index: -1;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-red);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(230, 0, 51, 0.35);
}

.btn-ghost {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--white);
}

.btn-dark {
    background: var(--dark);
    color: var(--white);
}

.btn-dark:hover {
    background: var(--mid-blue);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--dark);
    border: 1px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--dark);
}

.btn-arrow::after {
    content: '→';
    margin-left: 4px;
    transition: var(--transition);
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

.hero-visual {
    position: relative;
}

.hero-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

.hero-card-title {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.hero-card .stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.hero-card .stat {
    text-align: left;
}

.hero-card .stat-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #FFFFFF 0%, #00C2D7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-card .stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.4;
}

/* ============================================
   Hero 简化版（内页用）
   ============================================ */
.page-hero {
    background: linear-gradient(135deg, #0A1929 0%, #102B45 100%);
    color: var(--white);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 70% 30%, rgba(230, 0, 51, 0.15) 0%, transparent 50%);
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 720px;
}

.breadcrumb {
    display: flex;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb .separator {
    opacity: 0.4;
}

/* ============================================
   Logo展示带
   ============================================ */
.trust-band {
    background: var(--light-bg);
    padding: 40px 0;
    border-bottom: 1px solid var(--gray-200);
}

.trust-band-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.trust-band-label {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 500;
}

.trust-metrics {
    display: flex;
    gap: 48px;
}

.trust-metric {
    display: flex;
    flex-direction: column;
}

.trust-metric .value {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.trust-metric .label {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 6px;
}

/* ============================================
   问题卡片网格
   ============================================ */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.problem-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    opacity: 0;
    transition: var(--transition);
}

.problem-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(230, 0, 51, 0.1), rgba(230, 0, 51, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
}

.problem-icon svg {
    width: 28px;
    height: 28px;
}

.problem-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.problem-desc {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   对比表格
   ============================================ */
.compare-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.compare-card {
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
}

.compare-card.old {
    background: var(--light-bg);
    border: 1px solid var(--gray-200);
    color: var(--dark);
}

.compare-card.new {
    background: linear-gradient(135deg, #0A1929 0%, #102B45 100%);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.compare-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.compare-tag.old-tag {
    background: var(--gray-200);
    color: var(--gray-700);
}

.compare-tag.new-tag {
    background: var(--primary);
    color: var(--white);
}

.compare-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
}

.compare-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 15px;
    line-height: 1.6;
}

.compare-card.old .compare-list li {
    border-bottom-color: var(--gray-200);
}

.compare-list li:last-child {
    border-bottom: none;
}

.compare-list .icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.compare-card.old .icon {
    color: var(--gray-500);
}

.compare-card.new .icon {
    color: var(--accent);
}

/* ============================================
   服务体系（四层）
   ============================================ */
.service-layer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.service-layer {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    position: relative;
    border-top: 4px solid var(--primary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-layer:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-layer-num {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 48px;
    font-weight: 900;
    color: rgba(230, 0, 51, 0.1);
    line-height: 1;
}

.service-layer-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: 24px;
    position: relative;
    z-index: 2;
}

.service-layer-icon svg {
    width: 28px;
    height: 28px;
}

.service-layer h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.service-layer .role {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-layer p {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   价值卡片
   ============================================ */
.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    border-radius: var(--radius-md);
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.value-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(230, 0, 51, 0.08), rgba(0, 194, 215, 0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.value-icon svg {
    width: 36px;
    height: 36px;
}

.value-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.value-card p {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   产品展示
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.product-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    background: linear-gradient(135deg, #FAFBFC 0%, #F2F4F7 100%);
    padding: 50px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 240px;
    position: relative;
}

.product-image img {
    max-height: 180px;
    width: auto;
}

.product-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 10px;
    background: var(--primary);
    color: var(--white);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.product-model {
    font-size: 13px;
    color: var(--gray-500);
    font-family: var(--font-mono);
    margin-bottom: 16px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.product-features span {
    padding: 3px 10px;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 100px;
    font-size: 12px;
}

.product-desc {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   案例卡片
   ============================================ */
.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.case-header {
    background: linear-gradient(135deg, var(--dark) 0%, var(--mid-blue) 100%);
    color: var(--white);
    padding: 32px;
}

.case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.case-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.case-meta {
    display: flex;
    gap: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.case-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.case-body {
    padding: 32px;
}

.case-section {
    margin-bottom: 24px;
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.case-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.case-section ul {
    list-style: none;
    padding: 0;
}

.case-section li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
}

.case-section li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary);
    font-weight: 700;
}

.case-result {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 16px;
    padding: 20px;
    background: var(--light-bg);
    border-radius: var(--radius-sm);
    margin-top: 16px;
}

.case-result .item {
    text-align: center;
}

.case-result .value {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 6px;
}

.case-result .label {
    font-size: 12px;
    color: var(--gray-700);
}

/* ============================================
   步骤流程
   ============================================ */
.process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 60px;
    position: relative;
}

.process-step {
    text-align: center;
    position: relative;
}

.process-num {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    margin: 0 auto 16px;
    box-shadow: var(--shadow-red);
    position: relative;
    z-index: 2;
}

.process-step h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 13px;
    color: var(--gray-700);
    line-height: 1.6;
}

.process-grid::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    z-index: 1;
}

/* ============================================
   数据展示
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 60px;
}

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

.stat-num {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-text {
    font-size: 15px;
    color: var(--gray-700);
}

/* ============================================
   CTA 区
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--dark) 0%, var(--mid-blue) 100%);
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(230, 0, 51, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-section h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 640px;
    margin: 0 auto 32px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: #050F1A;
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-section {
    margin-bottom: 20px;
}

.footer-brand .logo-section img {
    height: 32px;
    filter: brightness(0) invert(1);
}

.footer-brand .tagline {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 320px;
}

.footer-hotline-card {
    background: rgba(230, 0, 51, 0.1);
    border: 1px solid rgba(230, 0, 51, 0.3);
    border-radius: var(--radius-md);
    padding: 20px;
}

.footer-hotline-card .label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
    line-height: 1;
}

.footer-hotline-card .number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
    line-height: 1.1;
    margin-bottom: 4px;
}

.footer-hotline-card .time {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.3;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
    font-size: 14px;
}

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

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
}

.footer-bottom .legal {
    display: flex;
    gap: 24px;
}

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

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
    /* 中等宽度：页头压缩，避免三段内容溢出 */
    .header-inner {
        padding: 0 20px;
    }
    .logo-section {
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-section img {
        height: 28px;
    }
    .logo-text .name {
        font-size: 13px;
    }
    .logo-text .subtitle {
        font-size: 13px;
    }
    .nav {
        gap: 2px;
    }
    .nav a {
        padding: 6px 11px;
        font-size: 14px;
    }
    .hotline-section {
        padding-left: 12px;
    }
    .hotline-number {
        font-size: 20px;
    }

    .section-title {
        font-size: 32px;
    }
    
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .problem-grid,
    .value-grid,
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-layer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compare-section {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-grid::before {
        display: none;
    }
    
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .topbar {
        display: none;
    }
    
    .nav {
        display: none;
    }
    
    .header-inner {
        padding: 0 12px;
    }

    .logo-section {
        gap: 8px;
    }

    .logo-section img {
        height: 28px;
    }

    .logo-text .name {
        font-size: 13px;
        white-space: nowrap;
        text-align: justify;
        text-align-last: justify;
        -moz-text-align-last: justify;
    }

    .logo-text .subtitle {
        font-size: 14px;
        white-space: nowrap;
        text-align: justify;
        text-align-last: justify;
        -moz-text-align-last: justify;
    }

    .header {
        height: auto;
    }

    .header-inner {
        align-items: center;
    }

    .nav {
        display: none;
    }

    .mobile-toggle {
        display: none;
    }
    
    .hotline-section {
        display: flex;
        padding-left: 12px;
    }
    
    .hotline-label {
        display: none;
    }
    
    .hotline-number {
        font-size: 17px;
        letter-spacing: 0.3px;
    }
    
    /* 移动端菜单行 */
    .mobile-navbar {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-top: 1px solid var(--gray-100);
    }
    
    .mobile-navbar a {
        flex-shrink: 0;
        padding: 9px 15px;
        font-size: 14px;
        font-weight: 500;
        color: var(--gray-700);
    }
    
    .mobile-navbar a.active {
        color: var(--primary);
        font-weight: 600;
    }
    
    /* 移动端菜单（旧抽屉，改为隐藏，不再使用） */
    .mobile-nav {
        display: none !important;
    }
    
    .mobile-nav.open {
        display: flex;
        transform: translateX(0);
    }
    
    .mobile-nav a {
        padding: 16px 32px;
        font-size: 16px;
        font-weight: 500;
        color: var(--gray-700);
        border-bottom: 1px solid var(--gray-100);
        transition: var(--transition);
    }
    
    .mobile-nav a:hover,
    .mobile-nav a.active {
        color: var(--primary);
        background: rgba(230, 0, 51, 0.04);
    }
    
    .mobile-nav a.active {
        font-weight: 600;
    }
    
    .mobile-overlay {
        display: none !important;
    }
    
    .mobile-overlay.show {
        display: block;
        opacity: 1;
    }
    
    /* 汉堡按钮动画 */
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero {
        min-height: auto;
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .page-hero h1 {
        font-size: 32px;
    }
    
    .problem-grid,
    .value-grid,
    .product-grid,
    .case-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .service-layer-grid,
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .trust-band-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .trust-metrics {
        gap: 32px;
        flex-wrap: wrap;
    }
    
    .cta-section h2 {
        font-size: 28px;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease-out;
}

.pulse-dot {
    animation: pulse 2s infinite;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ============================================
   实用工具类
   ============================================ */
.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 12px !important; }
.mb-4 { margin-bottom: 16px !important; }
.mb-6 { margin-bottom: 24px !important; }
.mb-8 { margin-bottom: 32px !important; }

.mt-8 { margin-top: 32px !important; }
.mt-12 { margin-top: 48px !important; }
.mt-16 { margin-top: 64px !important; }

.text-primary { color: var(--primary) !important; }
.text-white { color: var(--white) !important; }
.text-gray { color: var(--gray-700) !important; }

.font-bold { font-weight: 700 !important; }
.font-extrabold { font-weight: 800 !important; }