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

:root {
    /* 主题色：浅紫到深紫渐变 */
    --color-light: rgb(237, 227, 252);
    --color-light-2: rgb(220, 200, 245);
    --color-mid: rgb(170, 120, 210);
    --color-deep: rgb(103, 37, 163);
    --color-deep-2: rgb(80, 25, 130);
    
    --gradient-main: linear-gradient(135deg, rgb(237, 227, 252) 0%, rgb(103, 37, 163) 100%);
    --gradient-deep: linear-gradient(135deg, rgb(103, 37, 163) 0%, rgb(80, 25, 130) 100%);
    --gradient-soft: linear-gradient(135deg, rgb(237, 227, 252) 0%, rgb(220, 200, 245) 100%);
    
    --text-dark: #1a1030;
    --text-body: #4a4060;
    --text-light: #8a809a;
    --text-white: #ffffff;
    
    --bg-white: #ffffff;
    --bg-soft: #faf8fc;
    --bg-purple: #f7f3fb;
    
    --border-light: rgba(103, 37, 163, 0.1);
    --shadow-sm: 0 2px 8px rgba(103, 37, 163, 0.06);
    --shadow-md: 0 8px 30px rgba(103, 37, 163, 0.1);
    --shadow-lg: 0 20px 60px rgba(103, 37, 163, 0.15);
    --shadow-xl: 0 30px 80px rgba(103, 37, 163, 0.2);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-body);
    background: var(--bg-white);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

.section {
    padding: 100px 0;
    position: relative;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-deep);
    color: var(--text-white);
    box-shadow: 0 8px 24px rgba(103, 37, 163, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(103, 37, 163, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-deep);
    border: 2px solid var(--color-deep);
}

.btn-outline:hover {
    background: var(--color-deep);
    color: var(--text-white);
    transform: translateY(-2px);
}

.btn-light {
    background: var(--bg-white);
    color: var(--color-deep);
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.btn-ghost {
    background: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-white);
}

.btn-sm {
    padding: 10px 22px;
    font-size: 14px;
}

/* ===== 头部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(103, 37, 163, 0.3);
    object-fit: cover;
    display: block;
}

.logo-text {
    font-size: 20px;
    color: var(--text-dark);
    background: var(--gradient-deep);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-body);
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-deep);
    background: var(--bg-purple);
}

.nav-cta {
    margin-left: 16px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== Hero 首屏 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 120px 0 80px;
    overflow: hidden;
    background: var(--gradient-main);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(103, 37, 163, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-white);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-white);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #f0e0ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 36px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag {
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.95);
}

/* Hero 视觉卡片 */
.hero-visual {
    position: relative;
    height: 480px;
}

.hero-card {
    position: absolute;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.hero-card-main {
    top: 40px;
    left: 0;
    right: 0;
    overflow: hidden;
    animation: floatCard 6s ease-in-out infinite;
}

.card-header {
    display: flex;
    gap: 6px;
    padding: 14px 18px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border-light);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-green { background: #4ade80; }
.dot-yellow { background: #fbbf24; }
.dot-red { background: #f87171; }

.card-body {
    padding: 24px;
}

.msg-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: flex-start;
}

.msg-out {
    flex-direction: row-reverse;
}

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-deep);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.msg-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    max-width: 75%;
    line-height: 1.5;
}

.msg-in .msg-bubble {
    background: var(--bg-purple);
    color: var(--text-dark);
    border-bottom-left-radius: 4px;
}

.msg-out .msg-bubble {
    background: var(--gradient-deep);
    color: var(--text-white);
    border-bottom-right-radius: 4px;
}

.msg-stats {
    display: flex;
    gap: 24px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-light);
}

.stat-mini {
    display: flex;
    flex-direction: column;
}

.stat-mini-label {
    font-size: 12px;
    color: var(--text-light);
}

.stat-mini-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-deep);
}

.hero-card-float {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
}

.hero-card-1 {
    top: 0;
    right: -20px;
    animation: floatCard 5s ease-in-out infinite 0.5s;
}

.hero-card-2 {
    bottom: 20px;
    left: -20px;
    animation: floatCard 5s ease-in-out infinite 1s;
}

.float-icon {
    font-size: 28px;
}

.float-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
}

.float-desc {
    font-size: 12px;
    color: var(--text-light);
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ===== 数据统计 ===== */
.stats {
    background: var(--bg-white);
    padding: 80px 0;
    margin-top: -60px;
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 48px 32px;
}

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

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -12px;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--border-light);
}

.stat-number {
    display: inline-block;
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-deep);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-suffix {
    display: inline-block;
    font-size: 36px;
    font-weight: 800;
    color: var(--color-deep);
    line-height: 1;
    vertical-align: top;
}

.stat-label {
    margin-top: 12px;
    font-size: 15px;
    color: var(--text-body);
    font-weight: 500;
}

/* ===== 通用 Section Header ===== */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-purple);
    color: var(--color-deep);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 17px;
    color: var(--text-body);
    line-height: 1.7;
}

/* ===== 产品服务 ===== */
.products {
    background: var(--bg-soft);
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.product-tab {
    padding: 12px 28px;
    background: var(--bg-white);
    border: 2px solid var(--border-light);
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-body);
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-tab:hover {
    border-color: var(--color-mid);
    color: var(--color-deep);
}

.product-tab.active {
    background: var(--gradient-deep);
    border-color: transparent;
    color: var(--text-white);
    box-shadow: 0 8px 20px rgba(103, 37, 163, 0.3);
}

.product-panel {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 56px;
    box-shadow: var(--shadow-md);
}

.product-panel.active {
    display: grid;
    animation: fadeIn 0.5s ease;
}

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

.product-info h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.product-info > p {
    font-size: 16px;
    color: var(--text-body);
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-features {
    margin-bottom: 32px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-dark);
}

.check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--gradient-deep);
    color: var(--text-white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

/* 产品视觉 - 代码块 */
.code-block {
    background: #1a1030;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.05);
    color: #c8b8e8;
    font-size: 13px;
    font-family: "SF Mono", Monaco, Consolas, monospace;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-block pre {
    padding: 24px;
    overflow-x: auto;
}

.code-block code {
    color: #e0d4f5;
    font-family: "SF Mono", Monaco, Consolas, monospace;
    font-size: 14px;
    line-height: 1.7;
}

.code-response {
    padding: 14px 20px;
    background: rgba(74, 222, 128, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    gap: 16px;
    align-items: center;
    font-size: 13px;
    font-family: "SF Mono", Monaco, Consolas, monospace;
}

.status-ok {
    color: #4ade80;
    font-weight: 700;
}

.status-msg {
    color: #c8b8e8;
}

/* 产品视觉 - 营销预览 */
.marketing-preview {
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    padding: 28px;
}

.preview-tag {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.preview-card {
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.preview-from {
    font-size: 13px;
    color: var(--color-deep);
    font-weight: 700;
    margin-bottom: 8px;
}

.preview-text {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 10px;
}

.preview-time {
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
}

.preview-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.preview-stats > div {
    text-align: center;
    padding: 14px;
    background: var(--bg-white);
    border-radius: var(--radius-sm);
}

.preview-stats strong {
    display: block;
    font-size: 20px;
    color: var(--color-deep);
    margin-bottom: 4px;
}

.preview-stats span {
    font-size: 12px;
    color: var(--text-light);
}

/* 产品视觉 - 通知列表 */
.notify-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.notify-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-deep);
    transition: transform 0.2s ease;
}

.notify-item:hover {
    transform: translateX(4px);
}

.notify-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.notify-content {
    flex: 1;
}

.notify-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.notify-desc {
    font-size: 13px;
    color: var(--text-body);
}

.notify-time {
    font-size: 12px;
    color: var(--text-light);
}

/* 产品视觉 - 双向聊天 */
.twoway-chat {
    background: var(--bg-soft);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--gradient-deep);
    color: var(--text-white);
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
}

.chat-name {
    font-size: 14px;
    font-weight: 600;
}

.chat-status {
    font-size: 12px;
    opacity: 0.85;
}

.chat-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-msg {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
}

.chat-in {
    align-self: flex-start;
    background: var(--bg-white);
    color: var(--text-dark);
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.chat-out {
    align-self: flex-end;
    background: var(--gradient-deep);
    color: var(--text-white);
    border-bottom-right-radius: 4px;
}

/* ===== 消息服务 ===== */
.messaging {
    background: var(--bg-white);
}

.messaging-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.messaging-card {
    padding: 40px 32px;
    background: var(--bg-soft);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.messaging-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-white);
}

.messaging-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--text-white);
}

.messaging-icon svg {
    width: 32px;
    height: 32px;
}

.messaging-icon-1 {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
}

.messaging-icon-2 {
    background: linear-gradient(135deg, #ea4335 0%, #d33828 100%);
}

.messaging-icon-3 {
    background: var(--gradient-deep);
}

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

.messaging-card > p {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
}

.messaging-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.messaging-features li {
    padding: 6px 14px;
    background: var(--bg-purple);
    color: var(--color-deep);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
}

/* ===== 核心优势 ===== */
.advantages {
    background: var(--bg-soft);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.advantage-card {
    padding: 36px 32px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

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

.advantage-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-soft);
    color: var(--color-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

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

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

.advantage-card p {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
}

/* ===== 解决方案 ===== */
.solutions {
    background: var(--bg-white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.solution-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.solution-img {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.solution-img-1 { background: linear-gradient(135deg, #ede3fc 0%, #c9a7eb 100%); }
.solution-img-2 { background: linear-gradient(135deg, #e0d4f5 0%, #a878d2 100%); }
.solution-img-3 { background: linear-gradient(135deg, #d4c5ee 0%, #8e5bc4 100%); }
.solution-img-4 { background: linear-gradient(135deg, #c9a7eb 0%, #6725a3 100%); }

.solution-emoji {
    font-size: 64px;
    transition: transform 0.3s ease;
}

.solution-card:hover .solution-emoji {
    transform: scale(1.15) rotate(8deg);
}

.solution-body {
    padding: 24px;
}

.solution-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.solution-body p {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 16px;
}

.solution-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-deep);
    transition: gap 0.2s ease;
}

.solution-link:hover {
    opacity: 0.8;
}

/* ===== 关于我们 ===== */
.about {
    background: var(--bg-soft);
}

.about-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.about-text {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}

.about-point {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.about-point-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.about-point h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.about-point p {
    font-size: 13px;
    color: var(--text-light);
}

.about-visual {
    position: relative;
}

.about-map {
    background: var(--gradient-main);
    border-radius: var(--radius-xl);
    padding: 48px;
    position: relative;
    overflow: hidden;
    min-height: 420px;
    box-shadow: var(--shadow-lg);
}

.map-pin {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pin-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

.pin-dot {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.map-info {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-white);
}

.map-info-title {
    font-size: 24px;
    font-weight: 800;
}

.map-info-desc {
    font-size: 14px;
    opacity: 0.9;
}

.map-stats {
    position: absolute;
    bottom: 32px;
    left: 32px;
    right: 32px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.map-stats > div {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
    padding: 14px;
    text-align: center;
    color: var(--text-white);
}

.map-stats strong {
    display: block;
    font-size: 15px;
    margin-bottom: 2px;
}

.map-stats span {
    font-size: 11px;
    opacity: 0.85;
}

/* ===== CTA ===== */
.cta-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.cta-box {
    background: var(--gradient-deep);
    border-radius: var(--radius-xl);
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.cta-box::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
}

.cta-box h2 {
    position: relative;
    font-size: 36px;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 12px;
}

.cta-box p {
    position: relative;
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

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

/* ===== 页脚 ===== */
.footer {
    background: #1a1030;
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 32px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 48px;
}

.logo-footer .logo-text {
    color: var(--text-white);
    -webkit-text-fill-color: var(--text-white);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin: 20px 0;
    max-width: 320px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.contact-icon {
    font-size: 16px;
}

.footer-title {
    color: var(--text-white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.2s ease;
}

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

.footer-text {
    font-size: 14px;
    margin-bottom: 16px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 14px;
    font-weight: 700;
    transition: all 0.2s ease;
}

.social-link:hover {
    background: var(--color-deep);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-deep);
    color: var(--text-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-title { font-size: 44px; }
    .section-title { font-size: 34px; }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-visual {
        height: 400px;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .product-panel {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }
    
    .about-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .messaging-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .section { padding: 70px 0; }
    
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }
    
    .nav.open {
        transform: translateY(0);
    }
    
    .nav-cta {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-title { font-size: 34px; }
    .hero-desc { font-size: 16px; }
    
    .hero-visual {
        height: 360px;
    }
    
    .hero-card-1 { right: 0; }
    .hero-card-2 { left: 0; }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 16px;
        padding: 32px 20px;
    }
    
    .stat-item:nth-child(2)::after { display: none; }
    
    .stat-number { font-size: 38px; }
    .stat-suffix { font-size: 28px; }
    
    .section-title { font-size: 28px; }
    .section-desc { font-size: 15px; }
    
    .product-tabs {
        gap: 6px;
    }
    
    .product-tab {
        padding: 10px 18px;
        font-size: 13px;
    }
    
    .product-panel {
        padding: 28px 20px;
    }
    
    .product-info h3 { font-size: 24px; }
    
    .messaging-grid,
    .advantages-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .about-points {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        padding: 40px 24px;
    }
    
    .cta-box h2 { font-size: 26px; }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

/* ===== Contact Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 16, 48, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: relative;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 40px 36px;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-purple);
    border: none;
    color: var(--color-deep);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--color-deep);
    color: var(--text-white);
    transform: rotate(90deg);
}

.modal-header {
    text-align: center;
    margin-bottom: 28px;
}

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

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

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

.required {
    color: #e53e7e;
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--bg-soft);
    transition: all 0.2s ease;
    resize: vertical;
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-deep);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(103, 37, 163, 0.1);
}

.form-group input.invalid,
.form-group textarea.invalid {
    border-color: #e53e7e;
    background: rgba(229, 62, 126, 0.04);
}

.form-error {
    font-size: 12px;
    color: #e53e7e;
    min-height: 14px;
    line-height: 1.2;
}

.modal-submit {
    margin-top: 8px;
    width: 100%;
}

.modal-success {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 0;
}

.modal-success.show {
    display: flex;
    animation: fadeIn 0.4s ease;
}

.success-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--gradient-deep);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 20px;
    animation: popIn 0.4s ease;
}

@keyframes popIn {
    0% { transform: scale(0); }
    60% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

.modal-success h3 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.modal-success p {
    font-size: 15px;
    color: var(--text-body);
}

@media (max-width: 480px) {
    .hero-title { font-size: 28px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .stats-grid { grid-template-columns: 1fr; }
    .stat-item::after { display: none !important; }
    .modal { padding: 32px 22px; }
    .modal-header h3 { font-size: 22px; }
}