/* ============================================
   重庆三格科技营销站点 - 明亮科技风
   ============================================ */

/* CSS变量（明亮主题） */
:root {
    --primary: #0a66ff;
    --primary-dark: #0052cc;
    --primary-light: #3d8bff;
    --accent: #00b4d8;
    --bg-page: #f5f8ff;
    --bg-white: #ffffff;
    --bg-soft: #eef3ff;
    --bg-soft2: #f8fbff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fbff;
    --text-primary: #101b33;
    --text-secondary: #4a5a78;
    --text-muted: #8a97b3;
    --border: #e3ebf7;
    --border-light: #d4e2f5;
    --gradient-primary: linear-gradient(135deg, #0a66ff 0%, #00b4d8 100%);
    --gradient-soft: linear-gradient(135deg, #e8f1ff 0%, #e6f9fd 100%);
    --gradient-hero: radial-gradient(ellipse at 80% 10%, rgba(10, 102, 255, 0.12) 0%, transparent 55%),
                     radial-gradient(ellipse at 10% 90%, rgba(0, 180, 216, 0.10) 0%, transparent 50%);
    --shadow-glow: 0 8px 40px rgba(10, 102, 255, 0.15);
    --shadow-card: 0 6px 24px rgba(23, 43, 99, 0.08);
    --shadow-card-hover: 0 16px 48px rgba(23, 43, 99, 0.14);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
    list-style: none;
}

/* 全屏容器 */
.container-full {
    width: 100%;
    max-width: 100%;
    padding: 0 5vw;
}

.container-wide {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 4vw;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   导航栏 - 全屏固定顶部（明亮）
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.2rem 5vw;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.8rem 5vw;
    box-shadow: 0 2px 20px rgba(23, 43, 99, 0.05);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-logo .logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo .logo-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.1em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    position: relative;
    cursor: pointer;
}

.nav-link:hover,
.nav-item.active .nav-link {
    color: var(--text-primary);
}

/* CTA按钮保持白色文字与渐变背景，不受active状态影响 */
.nav-item.active .nav-link.nav-cta {
    color: #ffffff;
}

.nav-item.active .nav-link.nav-cta::after {
    display: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-item.active .nav-link::after {
    width: 100%;
}

/* 下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: #ffffff;
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-card-hover);
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
    display: block;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
}

.nav-dropdown a:hover {
    background: var(--bg-soft);
    color: var(--primary);
}

.nav-cta {
    background: var(--gradient-primary);
    color: #fff !important;
    padding: 0.65rem 1.5rem !important;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 20px rgba(10, 102, 255, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(10, 102, 255, 0.45);
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
    background: none;
    border: none;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* ============================================
   Hero区域 - 全屏（左文右面板，零图片）
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, #e8f1ff 0%, #f5f9ff 40%, #eaf6fb 100%);
    padding-top: 80px;
}

/* 网格纹理装饰（纯CSS） */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        linear-gradient(rgba(10, 102, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 102, 255, 0.045) 1px, transparent 1px);
    background-size: 56px 56px;
    -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 70%);
    mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 70%);
    pointer-events: none;
}

/* 右上光斑 */
.hero::after {
    content: '';
    position: absolute;
    top: 12%;
    right: -6%;
    width: 560px;
    height: 560px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.14) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-30px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 5vw;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
    align-items: center;
}

/* 左侧文字 */
.hero-text {
    padding-bottom: 1rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(10, 102, 255, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(10, 102, 255, 0.08);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 4.6rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    max-width: 760px;
    color: var(--text-primary);
}

.hero h1 .gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p.hero-desc {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 620px;
    margin-bottom: 2.5rem;
    line-height: 1.85;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.25rem;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 24px rgba(10, 102, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px rgba(10, 102, 255, 0.5);
    color: #fff;
}

.btn-outline {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    background: var(--bg-soft);
    border-color: var(--primary-light);
    color: var(--primary);
}

/* Hero数据统计 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 760px;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.stat-item .stat-number {
    font-size: clamp(1.6rem, 2.6vw, 2.3rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-item .stat-label {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ============================================
   Hero右侧 - 数据面板（纯CSS/SVG，零图片）
   ============================================ */
.hero-panel-wrap {
    position: relative;
}

.hero-panel-wrap::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px dashed rgba(10, 102, 255, 0.25);
    animation: spin 40s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-panel {
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 1.75rem;
    box-shadow: 0 24px 64px rgba(23, 43, 99, 0.16);
    animation: panel-in 0.8s ease-out;
}

@keyframes panel-in {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.panel-title {
    font-size: 0.95rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-live {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
}

.panel-live i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 1.5s infinite;
}

.panel-chart {
    background: linear-gradient(180deg, #f2f7ff 0%, #ffffff 100%);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1rem 1rem 0.5rem;
    margin-bottom: 1.25rem;
}

.panel-chart svg {
    width: 100%;
    height: auto;
    display: block;
}

.panel-chart-meta {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0.25rem 0;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.chart-badge {
    position: absolute;
    top: 3.4rem;
    right: 2.5rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: #16a34a;
    box-shadow: 0 4px 16px rgba(23, 43, 99, 0.1);
}

.panel-channels {
    margin-bottom: 1.25rem;
}

.channel {
    display: grid;
    grid-template-columns: 76px 1fr 44px;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.7rem;
}

.channel-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.channel-bar {
    height: 8px;
    background: var(--bg-soft);
    border-radius: 100px;
    overflow: hidden;
}

.channel-bar span {
    display: block;
    height: 100%;
    border-radius: 100px;
    background: var(--gradient-primary);
    animation: bar-grow 1.2s ease-out;
}

@keyframes bar-grow {
    from { width: 0 !important; }
}

.channel-value {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: right;
}

.panel-kpis {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.panel-kpi {
    background: var(--bg-soft);
    border-radius: 12px;
    padding: 0.85rem 0.5rem;
    text-align: center;
}

.panel-kpi .kpi-value {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.panel-kpi .kpi-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* ============================================
   通用区块 - 全屏宽
   ============================================ */
.section {
    padding: 6rem 5vw;
    position: relative;
}

.section-dark {
    background: linear-gradient(180deg, #eef4ff 0%, #f5f9ff 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-header {
    text-align: center;
    max-width: 1100px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: #ffffff;
    border: 1px solid rgba(10, 102, 255, 0.22);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
    box-shadow: 0 2px 10px rgba(10, 102, 255, 0.06);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   卡片网格 - 大屏宽布局
   ============================================ */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75rem;
}

.grid-6 {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(23, 43, 99, 0.04);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(10, 102, 255, 0.1), rgba(0, 180, 216, 0.1));
    border-radius: 14px;
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   表格
   ============================================ */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg-soft);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: nowrap;
}

td {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: var(--bg-soft2);
}

/* AI测评 - 评分环与勾选组 */
.score-ring {
    width: 190px;
    height: 190px;
    margin: 0 auto;
    border-radius: 50%;
    background: conic-gradient(var(--primary) 0deg, rgba(255,255,255,0.12) 0deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}
.score-ring::after {
    content: '';
    position: absolute;
    inset: 14px;
    border-radius: 50%;
    background: var(--card-bg);
}
.score-num {
    position: relative;
    z-index: 1;
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
}
.score-label {
    position: relative;
    z-index: 1;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}
.check-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 1rem;
}
.check-item {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.35rem 0;
}
.check-item input {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
}
@media (max-width: 640px) {
    .check-group { grid-template-columns: 1fr; }
}

/* 产品矩阵全景 */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.matrix-block {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
}
.matrix-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
    border-bottom: 2px solid var(--gradient-primary);
    border-image: linear-gradient(90deg, #0a66ff, #00b4d8) 1;
    border-bottom-style: solid;
}
.matrix-title span {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}
.matrix-title small {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.matrix-cat {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0.75rem 0 0.4rem;
    letter-spacing: 0.05em;
}
.matrix-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.matrix-list li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.75;
    padding-left: 0.9rem;
    position: relative;
}
.matrix-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
}
.matrix-list a { color: var(--primary); text-decoration: none; }
.matrix-list a:hover { text-decoration: underline; }
@media (max-width: 900px) {
    .matrix-grid { grid-template-columns: 1fr; }
}

/* BI决策 - 数据驾驶舱 */
.bi-board {
    background: linear-gradient(160deg, #ffffff 0%, #f2f7ff 100%);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: var(--shadow-md);
}
.bi-board-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}
.bi-board-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
}
.bi-board-title small {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}
.bi-board-live {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.bi-board-live i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 4px rgba(34,197,94,0.18);
}
.bi-kpis {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.bi-kpi {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 1.1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}
.bi-kpi-num {
    font-size: 1.7rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.1;
}
.bi-kpi-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.3rem; }
.bi-kpi-trend { font-size: 0.78rem; font-weight: 700; margin-top: 0.4rem; }
.bi-kpi-trend.up { color: #16a34a; }
.bi-row {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}
.bi-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 1.25rem 1.4rem;
    box-shadow: var(--shadow-sm);
}
.bi-card-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}
.bi-card-title small { font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }
.bi-chart-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}
.bi-bars { display: flex; flex-direction: column; gap: 0.7rem; }
.bi-bar { display: flex; align-items: center; gap: 0.6rem; font-size: 0.82rem; }
.bi-bar-label { width: 92px; color: var(--text-secondary); flex-shrink: 0; }
.bi-bar-track { flex: 1; height: 9px; background: var(--bg-soft2); border-radius: 100px; overflow: hidden; }
.bi-bar-track span { display: block; height: 100%; border-radius: 100px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.bi-bar-val { width: 34px; text-align: right; font-weight: 700; color: var(--primary); }
.bi-funnel { display: flex; flex-direction: column; gap: 0.5rem; align-items: center; }
.bi-funnel-row {
    background: linear-gradient(90deg, rgba(10,102,255,0.85), rgba(0,212,255,0.75));
    color: #fff;
    border-radius: 8px;
    padding: 0.55rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    text-align: center;
}
.bi-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.bi-table th { text-align: left; color: var(--text-muted); font-weight: 600; padding: 0.45rem 0.5rem; border-bottom: 1px solid var(--border-light); }
.bi-table td { padding: 0.5rem; color: var(--text-secondary); border-bottom: 1px dashed var(--border-light); }
.bi-table .ok { color: #16a34a; font-weight: 700; }
.bi-table .warn { color: #d97706; font-weight: 700; }
@media (max-width: 900px) {
    .bi-kpis { grid-template-columns: repeat(2, 1fr); }
    .bi-row { grid-template-columns: 1fr; }
}

/* 五大生态 */
.ecos-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
}
.ecos-card {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 1.75rem 1.25rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s, box-shadow 0.25s;
}
.ecos-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.ecos-card.ecos-hot {
    border: 2px solid var(--primary);
    background: linear-gradient(160deg, rgba(10,102,255,0.08), rgba(0,212,255,0.04));
    position: relative;
}
.ecos-card.ecos-hot::after {
    content: '新风口';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.7rem;
    border-radius: 100px;
}
.ecos-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.ecos-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.ecos-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.8; }
@media (max-width: 1000px) {
    .ecos-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .ecos-grid { grid-template-columns: 1fr; }
}

/* 客户采购行为轨迹 */
.buy-journey {
    display: flex;
    align-items: stretch;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: center;
}
.buy-step {
    flex: 1;
    min-width: 150px;
    max-width: 190px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 1.5rem 1.1rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.buy-num {
    width: 34px;
    height: 34px;
    margin: 0 auto 0.75rem;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    font-weight: 800;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.buy-step h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.buy-step p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.7; }
.warn-text { color: #d97706; font-weight: 700; }
.ok-text { color: #16a34a; font-weight: 700; }
.buy-arrow {
    align-self: center;
    color: var(--accent);
    font-size: 1.4rem;
    font-weight: 700;
}
@media (max-width: 1000px) {
    .buy-arrow { display: none; }
}

/* 版本对比表 */
.version-table th {
    text-align: center;
    font-size: 1.05rem;
    padding: 1.25rem 1.5rem;
    background: var(--gradient-soft);
    border-bottom: 2px solid var(--border-light);
}

.version-table th.ver-hot {
    background: var(--gradient-primary);
    color: #ffffff;
    position: relative;
}

.version-table th.ver-hot::after {
    content: '推荐';
    position: absolute;
    top: -10px;
    right: 14px;
    background: #ffffff;
    color: var(--primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.6rem;
    border-radius: 100px;
    box-shadow: 0 2px 8px rgba(10, 102, 255, 0.25);
}

.version-table .ver-sub {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 0.25rem;
    color: var(--text-muted);
}

.version-table th.ver-hot .ver-sub {
    color: rgba(255, 255, 255, 0.75);
}

.version-table td {
    text-align: center;
    vertical-align: middle;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.version-table td.ver-dim {
    text-align: left;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--bg-soft2);
    white-space: nowrap;
}

.version-table td.ver-price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent);
    white-space: nowrap;
}

.version-table td.ver-hot-cell {
    background: rgba(10, 102, 255, 0.06);
    color: var(--primary);
}

/* 定制报价引导：不公开价格，留资获取专属报价 */
.quote-link {
    display: inline-block;
    padding: 5px 14px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(10, 102, 255, 0.08);
    border: 1px solid rgba(10, 102, 255, 0.35);
    border-radius: 8px;
    text-decoration: none;
    transition: all .2s ease;
    white-space: nowrap;
}
.quote-link:hover {
    background: var(--primary);
    color: #fff;
}
.quote-link.quote-hot {
    background: var(--primary);
    color: #fff;
}
.quote-link.quote-hot:hover {
    background: var(--primary-dark, #0852d0);
}
.quote-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .version-table th, .version-table td {
        padding: 0.75rem 0.6rem;
        font-size: 0.8rem;
    }
    .version-table td.ver-dim { white-space: normal; min-width: 72px; }
}

/* ============================================
   表单
   ============================================ */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(10, 102, 255, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

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

.form-select option {
    background: #ffffff;
    color: var(--text-primary);
}

/* ============================================
   页脚 - 深墨蓝收尾对比
   ============================================ */
.footer {
    background: #0d1b33;
    border-top: none;
    padding: 5rem 5vw 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: #ffffff;
}

.footer-col ul li {
    margin-bottom: 0.65rem;
}

.footer-col ul li a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-qrcode {
    width: 120px;
    height: 120px;
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 8px;
    margin-top: 0.5rem;
}

.footer-qrcode img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
}

/* ============================================
   悬浮联系方式
   ============================================ */
.float-contact {
    position: fixed;
    right: 1.5rem;
    bottom: 2rem;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(10, 102, 255, 0.35);
    transition: var(--transition);
    border: none;
    position: relative;
}

.float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(10, 102, 255, 0.5);
}

.float-btn .tooltip {
    position: absolute;
    right: 65px;
    top: 50%;
    transform: translateY(-50%);
    background: #0d1b33;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    color: #ffffff;
}

.float-btn:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   面包屑
   ============================================ */
.breadcrumb {
    padding: 120px 5vw 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.breadcrumb .separator {
    color: var(--text-muted);
}

.breadcrumb .current {
    color: var(--text-primary);
}

/* ============================================
   页面标题区 - 全屏
   ============================================ */
.page-header {
    padding: 2rem 5vw 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #e8f1ff 0%, #f5f9ff 100%);
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    pointer-events: none;
}

.page-header h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    position: relative;
    color: var(--text-primary);
}

.page-header p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

/* ============================================
   富文本内容样式
   ============================================ */
.rich-content {
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 1.05rem;
}

.rich-content h1,
.rich-content h2,
.rich-content h3,
.rich-content h4 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 2rem 0 1rem;
    line-height: 1.3;
}

.rich-content h1 { font-size: 2rem; }
.rich-content h2 { font-size: 1.6rem; }
.rich-content h3 { font-size: 1.3rem; }

.rich-content p {
    margin-bottom: 1.25rem;
}

.rich-content ul,
.rich-content ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.rich-content ul { list-style: disc; }
.rich-content ol { list-style: decimal; }

.rich-content li {
    margin-bottom: 0.5rem;
}

.rich-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.rich-content a {
    color: var(--primary);
    text-decoration: underline;
}

.rich-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 1.5rem 0;
}

.rich-content blockquote {
    border-left: 3px solid var(--primary);
    padding: 1rem 1.5rem;
    background: var(--bg-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.rich-content table {
    margin: 1.5rem 0;
    width: 100%;
}

.rich-content code {
    background: var(--bg-soft);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
}

.rich-content pre {
    background: #0d1b33;
    color: #e2e8f0;
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.rich-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

/* ============================================
   FAQ手风琴
   ============================================ */
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(23, 43, 99, 0.04);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 6px 24px rgba(10, 102, 255, 0.12);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-light);
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.faq-answer-inner {
    padding: 0 2rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-6 { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-content { grid-template-columns: 1fr; gap: 3rem; }
    .hero-panel-wrap { max-width: 520px; }
    .hero-stats { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 992px) {
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 300px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        border-left: 1px solid var(--border);
        z-index: 999;
        box-shadow: -8px 0 32px rgba(23, 43, 99, 0.1);
    }
    .nav-dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0.5rem 0 0 1rem;
    }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .hero-panel-wrap { display: none; }
}

@media (max-width: 768px) {
    .section { padding: 4rem 1.5rem; }
    .container, .container-wide, .container-full { padding: 0 1.5rem; }
    .navbar { padding: 1rem 1.5rem; }
    .navbar.scrolled { padding: 0.75rem 1.5rem; }
    .hero-content { padding: 2rem 1.5rem; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .grid-6 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .card { padding: 1.75rem; }
    .breadcrumb { padding: 100px 1.5rem 1rem; }
    .page-header { padding: 1rem 1.5rem 3rem; }
    .float-contact { right: 1rem; bottom: 1rem; }
    .float-btn { width: 46px; height: 46px; font-size: 1.1rem; }
    .hero-panel-wrap { display: none; }
}

/* 工具类 */
.text-center { text-align: center; }
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-4 { margin-bottom: 4rem; }