/* ========================================
   易优GEO 落地页 - 宝塔风格
   主题色：#FF6600（易优橙）
======================================== */

/* === CSS Variables === */
:root {
    --primary: #FF6600;
    --primary-light: #FF8533;
    --primary-dark: #E65C00;
    --primary-glow: rgba(255, 102, 0, 0.4);
    --dark-bg: #0D1117;
    --dark-card: #161B22;
    --dark-border: #30363D;
    --text-primary: #F0F6FC;
    --text-secondary: #8B949E;
    --text-dark: #1F2328;
    --white: #FFFFFF;
    --light-bg: #F6F8FA;
    --success: #3FB950;
    --warning: #D29922;
    --danger: #F85149;
}

/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family:  "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Header (深色科技感) === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--dark-border);
    height: 70px;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 900;
    color: var(--white);
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-geo {
    color: var(--primary);
    margin-left: 2px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-demo {
    padding: 8px 20px;
    background: var(--primary);
    color: var(--white);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
}

.btn-demo:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.btn-back {
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 14px;
}

.btn-back:hover {
    color: var(--text-primary);
}

/* === Hero Section (深色科技感首屏) === */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(180deg, var(--dark-bg) 0%, #1A1F2E 100%);
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 102, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 102, 0, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.5;
    filter: blur(80px);
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 102, 0, 0.1);
    border: 1px solid rgba(255, 102, 0, 0.3);
    border-radius: 50px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 32px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 56px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

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

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.hero-demo-info {
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-bottom: 60px;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.btn-glow {
    flex-direction: column;
    padding: 16px 40px;
}

.btn-glow .btn-price {
    font-size: 13px;
    font-weight: 400;
    opacity: 0.9;
}

.btn-outline {
    background: transparent;
    color: #e7e7e7;
    border-color: var(--dark-border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-icon {
    font-size: 12px;
}

.btn-icon.iconfont {
    font-size: 14px;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 17px;
}

/* === Hero Stats === */
.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    padding: 32px 48px;
    background: rgba(22, 27, 34, 0.8);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    max-width: 800px;
    margin: 0 auto;
}

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

.stat-num {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--dark-border);
}

/* === Section Common === */
.section {
    padding: 60px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 102, 0, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* === Trend Section === */
.trend-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    margin: 0 auto;
}

.trend-card {
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.trend-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.trend-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.trend-icon .iconfont {
    font-size: 40px;
    color: var(--primary);
}

.trend-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.trend-card > p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.trend-list {
    margin-top: 16px;
}

.trend-list li {
    padding: 10px 0;
    font-size: 15px;
    color: #4B5563;
    border-bottom: 1px dashed #E5E7EB;
    position: relative;
    padding-left: 24px;
}

.trend-list li::before {
    content: '"';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-size: 20px;
    font-weight: 700;
}

.trend-card-warning {
    background: linear-gradient(135deg, #FFF7ED 0%, #FFEDD5 100%);
    border-color: rgba(255, 102, 0, 0.2);
}

.trend-highlight {
    margin-top: 20px;
    font-size: 18px;
    color: var(--text-dark);
    font-weight: 600;
}

.trend-highlight span {
    color: var(--primary);
    font-size: 24px;
    font-weight: 800;
}

/* === Pain Section === */
.section-pain {
    background: var(--white) !important;
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.pain-card {
    background: var(--light-bg);
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 24px 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.pain-card:hover {
    border-color: var(--primary);
    background: #FFF7ED;
}

.pain-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.pain-icon .iconfont {
    font-size: 36px;
    color: var(--primary);
}

.pain-card p {
    font-size: 14px;
    color: #4B5563;
    line-height: 1.6;
}

.pain-solution {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, var(--dark-bg), #1A1F2E);
    border-radius: 16px;
    padding: 40px 48px;
}

.solution-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.solution-content p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* === GEO Compare Section === */
.geo-compare {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 48px;
}

.geo-item {
    flex: 1;
    padding: 32px;
    border-radius: 16px;
    background: var(--light-bg);
    border: 2px solid #E5E7EB;
}

.geo-old {
    opacity: 0.7;
}

.geo-new {
    background: linear-gradient(135deg, #FFF7ED 0%, #FFEDD5 100%);
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(255, 102, 0, 0.15);
}

.geo-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.geo-new .geo-label {
    color: var(--primary);
}

.geo-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.geo-step {
    padding: 8px 14px;
    background: var(--white);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-dark);
}

.geo-new .geo-step {
    background: var(--white);
}

.geo-step.highlight {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.geo-arrow {
    color: var(--primary);
    font-weight: 700;
    font-size: 18px;
}

.geo-vs {
    font-size: 24px;
    font-weight: 900;
    color: var(--text-secondary);
    padding: 16px;
}

.geo-summary {
    text-align: center;
    font-size: 18px;
    color: var(--text-dark);
    margin: 0 auto;
}

.geo-summary strong {
    color: var(--primary);
    font-weight: 700;
}

/* === Flow Section === */
.flow-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.flow-line {
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}

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

.flow-num {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 25px var(--primary-glow);
}

.flow-card {
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 24px 20px;
    transition: all 0.3s ease;
}

.flow-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(255, 102, 0, 0.1);
}

.flow-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.flow-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === Features Section === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    display: flex;
    gap: 20px;
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 102, 0, 0.1);
}

.feature-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.feature-icon .iconfont {
    font-size: 40px;
    color: var(--primary);
}

.feature-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === Compare Table Section === */
.compare-table-wrap {
    overflow-x: auto;
    border-radius: 16px;
    border: 1px solid #E5E7EB;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

.compare-table th,
.compare-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.compare-table thead th {
    background: var(--dark-bg);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.compare-table thead th.highlight-col {
    background: var(--primary);
    position: relative;
}

.col-badge {
    position: absolute;
    right: 16px;
    background: var(--white);
    color: var(--primary);
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
}

.compare-table td.highlight-col {
    background: #FFF7ED;
}

.compare-table tbody tr:hover {
    background: var(--light-bg);
}

.compare-table .check {
    color: var(--success);
    font-weight: 700;
    margin-right: 8px;
}

.compare-table .cross {
    color: var(--danger);
    font-weight: 700;
    margin-right: 8px;
    opacity: 0.6;
}

/* === Pricing Section === */
.section-pricing {
    background: var(--light-bg) !important;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto 24px;
}

.pricing-card {
    background: var(--white);
    border: 2px solid #E5E7EB;
    border-radius: 20px;
    padding: 40px 36px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

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

.pricing-card-hot {
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(255, 102, 0, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.pricing-badge .iconfont {
    font-size: 14px;
    margin-right: 4px;
}

.pricing-header h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.pricing-header p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pricing-price {
    margin-bottom: 8px;
}

.price-symbol {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    vertical-align: top;
}

.price-num {
    font-size: 56px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.price-original {
    font-size: 16px;
    color: #9CA3AF;
    text-decoration: line-through;
    margin-left: 8px;
}

.pricing-tag {
    display: inline-block;
    background: rgba(255, 102, 0, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 24px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 24px;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    border-bottom: 1px solid #F3F4F6;
    padding-left: 28px;
    position: relative;
}

.pricing-features li.yes::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.pricing-features li.no {
    color: #9CA3AF;
}

.pricing-features li.no::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #D1D5DB;
}

/* 即将推出标签 */
.coming-soon {
    display: inline-block;
    font-size: 12px;
    padding: 2px 8px;
    margin-left: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 10px;
    font-weight: 500;
    vertical-align: middle;
}

.pricing-renew {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.pricing-upgrade {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

/* === FAQ Section === */
.faq-list {
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.faq-q {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    position: relative;
    padding-right: 50px;
}

.faq-q::after {
    content: "+";
    position: absolute;
    right: 24px;
    font-size: 24px;
    color: var(--primary);
    transition: transform 0.3s ease;
}

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

.faq-icon {
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: var(--white);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-a {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    padding: 0 24px 0 68px;
}

.faq-item.active .faq-a {
    max-height: 200px;
    padding-bottom: 20px;
}

/* === CTA Section === */
.section-cta {
    background: linear-gradient(135deg, var(--dark-bg), #1A1F2E) !important;
    padding: 100px 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.cta-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

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

.btn-white:hover {
    background: #FFF7ED;
    transform: translateY(-2px);
}

.btn-white-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-white-outline:hover {
    border-color: var(--white);
}

.cta-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-contact {
    font-size: 15px;
    color: var(--text-secondary);
}

.cta-contact strong {
    color: var(--primary);
    font-weight: 700;
}

.cta-note {
    font-size: 13px;
    opacity: 0.7;
    margin-top: 8px;
}

/* === Footer === */
.footer {
    background: var(--dark-bg);
    color: var(--text-secondary);
    padding: 48px 0 24px;
    font-size: 14px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--dark-border);
}

.footer-brand .logo {
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-secondary);
}

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

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

.footer-contact p {
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    color: var(--text-secondary);
    font-size: 13px;
}

/* === Float Button === */
.float-btn {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.float-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.float-btn-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 14px 24px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 30px var(--primary-glow);
    transition: all 0.3s ease;
}

.float-btn-trigger:hover {
    transform: scale(1.05);
}

.float-icon {
    font-size: 18px;
}

.float-icon .iconfont {
    font-size: 20px;
}

.float-btn-panel {
    position: absolute;
    bottom: 60px;
    right: 0;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    min-width: 200px;
}

.float-btn-panel.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.float-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    transition: all 0.2s ease;
    border-bottom: 1px solid #F3F4F6;
}

.float-option:last-child {
    border-bottom: none;
}

.float-option:hover {
    background: #FFF7ED;
}

.float-option-name {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 600;
}

.float-option-price {
    font-size: 15px;
    color: var(--primary);
    font-weight: 700;
}

.float-option-hot {
    background: #FFF7ED;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .nav {
        display: none;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-stats {
        gap: 24px;
        padding: 24px 32px;
    }

    .stat-num {
        font-size: 26px;
    }

    .geo-compare {
        flex-direction: column;
    }

    .geo-item {
        max-width: 100%;
    }

    .geo-vs {
        padding: 8px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 0 16px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .stat-divider {
        display: none;
    }

    .stat-item {
        width: 45%;
    }

    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .trend-grid {
        grid-template-columns: 1fr;
    }

    .pain-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .flow-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .flow-line {
        display: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        flex-direction: column;
        text-align: center;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
    }

    .footer-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .float-btn {
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 26px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 6px 14px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .pain-grid {
        grid-template-columns: 1fr;
    }

    .pain-solution {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        padding: 32px 24px;
    }

    .flow-timeline {
        grid-template-columns: 1fr;
    }

    .cta-badges {
        flex-direction: column;
        gap: 8px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 15px;
    }
}

/* === Buy Modal === */
.buy-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.buy-modal.show {
    opacity: 1;
    visibility: visible;
}

.buy-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.buy-modal-content {
    position: relative;
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    max-width: 420px;
    width: 90%;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.buy-modal.show .buy-modal-content {
    transform: scale(1) translateY(0);
}

.buy-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--light-bg);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.buy-modal-close:hover {
    background: #E5E7EB;
    transform: rotate(90deg);
}

.buy-modal-close .iconfont {
    font-size: 18px;
    color: var(--text-secondary);
}

.buy-modal-header {
    text-align: center;
    margin-bottom: 32px;
}

.buy-modal-header h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.buy-modal-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.buy-modal-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.buy-modal-qrcode {
    text-align: center;
}

.buy-modal-qrcode img {
    width: 180px;
    height: 180px;
    border-radius: 12px;
    border: 2px solid var(--light-bg);
    margin-bottom: 12px;
}

.buy-modal-qrcode p {
    font-size: 14px;
    color: var(--text-secondary);
}

.buy-modal-divider {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
}

.buy-modal-divider::before,
.buy-modal-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #E5E7EB;
}

.buy-modal-divider span {
    font-size: 14px;
    color: var(--text-secondary);
}

.buy-modal-qq {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 16px 20px;
    background: var(--light-bg);
    border-radius: 12px;
}

.qq-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #12B7F5, #0D9FD9);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qq-icon .iconfont {
    font-size: 28px;
    color: var(--white);
}

.qq-info {
    flex: 1;
}

.qq-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.qq-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.qq-copy {
    padding: 8px 16px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.qq-copy:hover {
    background: var(--primary-light);
}

.buy-modal-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #E5E7EB;
}

.buy-modal-footer p {
    font-size: 13px;
    color: var(--text-secondary);
}