@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;600;700&display=swap');

/* ==========================================================================
   现代重构版样式表 - modern.css
   高级感 Soft 风格 + 3D裸眼透视 + 全局视口淡入模糊入场动画 + 动态呼吸光效
   ========================================================================== */

:root {
    /* 柔和结构主义浅色系统 */
    --color-bg-main: #f3f3f6; /* 极富高级感的温润银灰 */
    --color-bg-section: #ffffff;
    
    /* 双层槽圈结构背景 */
    --color-bezel-outer: rgba(255, 255, 255, 0.45);
    --color-bg-card: #ffffff; 
    
    /* 品牌配色 */
    --color-primary: #cd412a; /* 定制官方 Logo 朱砂红 */
    --color-primary-hover: #de533c;
    --color-primary-muted: rgba(205, 65, 42, 0.05);
    
    /* 文字 */
    --color-text-main: #1d1d1f; /* 经典深灰色，避免纯黑死板 */
    --color-text-muted: #6e6e73; /* 经典苹果辅助文字灰 */
    --color-text-dark: #86868b;
    
    /* 边框 */
    --color-border: rgba(0, 0, 0, 0.04);
    --color-border-hover: rgba(205, 65, 42, 0.25);
    
    /* 超漫反射羽化阴影 (Ambient Shadow) */
    --shadow-ambient: 0 20px 45px -12px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.01);
    --shadow-ambient-hover: 0 30px 60px -15px rgba(205, 65, 42, 0.08), 0 1px 4px rgba(0, 0, 0, 0.02);

    /* 字体族 */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: 'JetBrains Mono', Courier, monospace;

    /* 圆角 Concentric curves 对齐体系 */
    --radius-outer: 28px;
    --radius-inner: 20px;
    --radius-sm: 8px;
    
    /* Awwwards物理弹簧运动 */
    --transition-spring: all 0.8s cubic-bezier(0.32, 0.72, 0, 1);
}

/* 页面基本重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-main);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 容器限制 */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 按钮设计：Nested Island Button 结构 */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 10px 10px 10px 24px; /* 右侧富余给嵌套的小圆圈 */
    border-radius: 100px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition-spring);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border: none;
    box-shadow: 0 10px 24px -8px rgba(205, 65, 42, 0.3);
}

.btn-primary .btn-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-spring);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: var(--color-primary-hover);
    box-shadow: 0 14px 30px -8px rgba(205, 65, 42, 0.45);
}

.btn-primary:hover .btn-icon {
    transform: translateX(3px);
    background: rgba(255, 255, 255, 0.25);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-secondary {
    background: var(--color-bezel-outer);
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(8px);
}

.btn-secondary .btn-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-spring);
}

.btn-secondary:hover {
    background: #ffffff;
    border-color: rgba(205, 65, 42, 0.25);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-secondary:hover .btn-icon {
    transform: translateX(3px);
    background: var(--color-primary-muted);
}

.btn-secondary:active {
    transform: translateY(0) scale(0.98);
}

/* ==========================================================================
   0. 全局 Entry 视口入场动画系统 (Scroll-Reveal & Stagger)
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(36px);
    filter: blur(6px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
                transform 1s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

/* 延迟 Stagger 机制：子元素依次冒出 */
.stagger-container .reveal-item {
    opacity: 0;
    transform: translateY(24px);
    filter: blur(4px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed .reveal-item {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

/* 依据 var(--index) 变量自动计算延迟时间 */
.reveal.revealed .reveal-item:nth-child(1) { transition-delay: 50ms; }
.reveal.revealed .reveal-item:nth-child(2) { transition-delay: 120ms; }
.reveal.revealed .reveal-item:nth-child(3) { transition-delay: 190ms; }
.reveal.revealed .reveal-item:nth-child(4) { transition-delay: 260ms; }
.reveal.revealed .reveal-item:nth-child(5) { transition-delay: 330ms; }
.reveal.revealed .reveal-item:nth-child(6) { transition-delay: 400ms; }
.reveal.revealed .reveal-item:nth-child(7) { transition-delay: 470ms; }
.reveal.revealed .reveal-item:nth-child(8) { transition-delay: 540ms; }
.reveal.revealed .reveal-item:nth-child(9) { transition-delay: 610ms; }

/* ==========================================================================
   1. 离顶悬浮胶囊导航栏 (Detached Floating Glass Navbar)
   ========================================================================== */
.modern-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    max-width: 1180px;
    margin: 16px auto;
    width: calc(100% - 32px);
    z-index: 1000;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.03);
    border-radius: 100px;
    transition: var(--transition-spring);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.03);
}

.modern-header .nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 16px 0 24px;
}

.modern-header .logo-area img {
    height: 32px;
    display: block;
    transition: var(--transition-spring);
}

.modern-header .nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.modern-header .nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-spring);
    padding: 6px 0;
}

.modern-header .nav-links a:hover {
    color: var(--color-primary);
}

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

.modern-header .btn-login {
    padding: 6px 6px 6px 18px;
    font-size: 13.5px;
}

.modern-header .btn-login .btn-icon {
    width: 26px;
    height: 26px;
}

/* 移动端菜单开关 */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-main);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

/* ==========================================================================
   2. 主视觉区 (Hero - 柔和呼吸弥散光 & Asymmetrical 排版)
   ========================================================================== */
.hero-section {
    position: relative;
    padding-top: 140px;
    padding-bottom: 80px;
    min-height: auto;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: radial-gradient(circle at top right, rgba(205, 65, 42, 0.05) 0%, transparent 60%);
}

/* 弥散光缓缓呼吸游走动画 */
.hero-glow {
    position: absolute;
    width: 700px;
    height: 700px;
    top: 5%;
    right: -10%;
    background: radial-gradient(circle, rgba(205, 65, 42, 0.04) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 0;
    pointer-events: none;
    animation: slowFloat 22s infinite ease-in-out alternate;
}

.hero-glow-left {
    position: absolute;
    width: 500px;
    height: 500px;
    bottom: -15%;
    left: -10%;
    background: radial-gradient(circle, rgba(205, 65, 42, 0.03) 0%, rgba(255, 255, 255, 0) 75%);
    z-index: 0;
    pointer-events: none;
    animation: slowFloatLeft 18s infinite ease-in-out alternate;
}

@keyframes slowFloat {
    0% { transform: translate(0, 0) scale(1); opacity: 0.8; }
    50% { transform: translate(40px, -20px) scale(1.08); opacity: 1; }
    100% { transform: translate(-20px, 30px) scale(0.95); opacity: 0.8; }
}

@keyframes slowFloatLeft {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, 40px) scale(1.1); }
    100% { transform: translate(20px, -20px) scale(0.9); }
}

.hero-section .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr; /* 偏右侧主图非对称 */
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: left;
}

.hero-tag {
    align-self: flex-start;
    background: #ffffff;
    color: var(--color-primary);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 12.5px;
    font-weight: 600;
    border: 1px solid rgba(0, 0, 0, 0.03);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.01);
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text-main);
}

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

.hero-description {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.75;
    max-width: 52ch;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 10px;
}

/* Double-Bezel (双层槽圈) 硬核外壳体系 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-wrapper {
    position: relative;
    width: 100%;
    max-width: 620px;
    aspect-ratio: 4/3;
    background: var(--color-bezel-outer);
    border: 1px solid var(--color-border);
    padding: 8px; /* 物理外壳边距 */
    border-radius: var(--radius-outer);
    box-shadow: var(--shadow-ambient);
    transition: var(--transition-spring);
}

.visual-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-inner); /* concentric radius match */
    filter: brightness(0.95);
    transition: var(--transition-spring);
}

.visual-wrapper:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-ambient-hover);
    border-color: var(--color-border-hover);
}

.visual-wrapper:hover .visual-image {
    transform: scale(1.02);
}

/* 嵌套悬浮覆盖物 (Bezel) */
.visual-glass-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-inner);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04);
    z-index: 2;
    transition: var(--transition-spring);
}

.visual-glass-overlay:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.95);
}

.visual-glass-overlay .status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

.visual-glass-overlay .overlay-text h4 {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--color-text-main);
}

.visual-glass-overlay .overlay-text p {
    font-size: 11.5px;
    color: var(--color-text-muted);
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

/* ==========================================================================
   3. 特性 Bento Grid (白瓷质感 & 交互式动态组件)
   ========================================================================== */
.features-section {
    padding: 100px 0;
    position: relative;
    background: #ffffff;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.section-eyebrow {
    color: var(--color-primary);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.section-title {
    font-size: 38px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-text-main);
}

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

.section-subtitle {
    font-size: 15px;
    color: var(--color-text-muted);
    max-width: 580px;
    line-height: 1.6;
}

/* Bento 框架 */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bento-card {
    background: var(--color-bezel-outer);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-outer);
    padding: 8px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-spring);
    box-shadow: var(--shadow-ambient);
}

/* 内部核心 */
.bento-card .inner-core {
    background: var(--color-bg-card);
    border-radius: var(--radius-inner);
    padding: 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 2;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.8);
    transition: var(--transition-spring);
    overflow: hidden;
}

.bento-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-ambient-hover);
}

.bento-card:hover .inner-core {
    background: #ffffff;
}

/* Bento 不对称卡片 */
.bento-card.col-span-2 {
    grid-column: span 2;
}

.bento-card.col-span-2 .inner-core {
    flex-direction: row;
    align-items: center;
    gap: 36px;
}

.bento-card .icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--color-primary-muted);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    transition: var(--transition-spring);
}

.bento-card:hover .icon-wrapper {
    background: var(--color-primary);
    color: #fff;
}

.bento-card .content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    z-index: 3;
}

.bento-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--color-text-main);
}

.bento-card p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* ==========================================================================
   Bento 内部装饰用微动交互组件 (Haptic Interactive Details)
   ========================================================================== */

/* 1. 扫码动态扫描线 */
.scanner-decor {
    position: absolute;
    right: 24px;
    bottom: -10px;
    width: 80px;
    height: 80px;
    border: 2px dashed rgba(205, 65, 42, 0.15);
    border-radius: 12px;
    opacity: 0.4;
    transition: var(--transition-spring);
    display: flex;
    align-items: center;
    justify-content: center;
}

.bento-card:hover .scanner-decor {
    border-color: rgba(205, 65, 42, 0.35);
    opacity: 1;
    transform: scale(1.05);
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    box-shadow: 0 0 8px var(--color-primary);
    animation: scanning 3s infinite linear;
}

@keyframes scanning {
    0% { top: 0%; }
    50% { top: 100%; }
    100% { top: 0%; }
}

/* 2. 累充不断攀爬的发光图表线 */
.chart-decor {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 130px;
    height: 60px;
    opacity: 0.3;
    transition: var(--transition-spring);
    pointer-events: none;
}

.bento-card:hover .chart-decor {
    opacity: 0.7;
}

.chart-svg path {
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
    animation: drawPath 4s infinite linear;
}

@keyframes drawPath {
    0% { stroke-dashoffset: 400; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -400; }
}

/* 3. 动态跳动的信号小点 */
.signal-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    margin-right: 6px;
    vertical-align: middle;
    box-shadow: 0 0 6px #10b981;
    animation: signalBeat 1.5s infinite;
}

@keyframes signalBeat {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

/* ==========================================================================
   4. 设备展示区 (Showcase - 3D 裸眼视差透视旋转)
   ========================================================================== */
.showcase-section {
    padding: 100px 0;
    position: relative;
    background: radial-gradient(circle at bottom left, rgba(205, 65, 42, 0.04) 0%, transparent 60%);
}

.showcase-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

/* 3D 旋转透视空间 */
.showcase-visual {
    position: relative;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1200px; /* 3D 空间纵深深度 */
}

.pc-mockup {
    position: absolute;
    width: 82%;
    left: 0;
    top: 5%;
    z-index: 1;
    background: var(--color-bezel-outer);
    border: 1px solid var(--color-border);
    padding: 6px;
    border-radius: var(--radius-outer);
    box-shadow: 0 25px 50px -15px rgba(0, 0, 0, 0.06);
    /* 初始左侧稍微倾斜 */
    transform: rotateY(15deg) rotateX(5deg) translateZ(0);
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.pc-mockup img {
    border-radius: var(--radius-inner);
    display: block;
    width: 100%;
}

.mobile-mockup {
    position: absolute;
    width: 38%;
    right: 5%;
    bottom: -2%;
    z-index: 2;
    background: var(--color-bezel-outer);
    border: 1px solid var(--color-border);
    padding: 6px;
    border-radius: 30px;
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.1);
    /* 初始向相反方向倾斜并稍微推前 */
    transform: rotateY(-12deg) rotateX(4deg) translateZ(40px);
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-mockup img {
    border-radius: 24px;
    display: block;
    width: 100%;
}

/* 鼠标划过时触发 3D 裸眼反转视差，形成强烈的空间扭动感 */
.showcase-visual:hover .pc-mockup {
    transform: rotateY(4deg) rotateX(1deg) translateZ(20px);
    box-shadow: 0 35px 70px -20px rgba(0, 0, 0, 0.1);
}

.showcase-visual:hover .mobile-mockup {
    transform: rotateY(-3deg) rotateX(1deg) translateZ(70px) translateY(-5px);
    box-shadow: 0 45px 80px -25px rgba(0, 0, 0, 0.16);
}

.showcase-content {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.showcase-content .description-text {
    font-size: 15.5px;
    color: var(--color-text-muted);
    line-height: 1.75;
}

.showcase-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mini-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-inner);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition-spring);
    box-shadow: var(--shadow-ambient);
}

.mini-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-ambient-hover);
}

.mini-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.mini-card h4 i {
    color: var(--color-primary);
}

.mini-card p {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ==========================================================================
   5. 定价套餐区 (Pricing - Bezel 外盒框架)
   ========================================================================== */
.pricing-section {
    padding: 100px 0;
    position: relative;
    background: #ffffff;
    border-top: 1px solid var(--color-border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
    align-items: stretch;
}

.pricing-card {
    background: var(--color-bezel-outer);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-outer);
    padding: 8px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-spring);
    box-shadow: var(--shadow-ambient);
}

/* 推荐套餐突出 */
.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: 0 25px 50px -15px rgba(205, 65, 42, 0.15);
    transform: translateY(-8px);
}

.pricing-card.featured::after {
    content: 'RECOMMENDED';
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--color-primary);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    letter-spacing: 0.05em;
    z-index: 3;
}

.pricing-card:hover:not(.featured) {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-ambient-hover);
}

/* 内部核心 */
.pricing-card .inner-core {
    background: var(--color-bg-card);
    border-radius: var(--radius-inner);
    padding: 36px 28px;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    z-index: 2;
    transition: var(--transition-spring);
}

.pricing-card.featured .inner-core {
    background: #ffffff;
}

.pricing-card .badge-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
}

.pricing-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text-main);
}

.pricing-card .fee-note {
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 20px;
    background: var(--color-primary-muted);
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid rgba(205, 65, 42, 0.12);
}

.pricing-card .price-row {
    margin-bottom: 24px;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.pricing-card .price-amount {
    font-family: var(--font-mono);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text-main);
}

.pricing-card .price-period {
    color: var(--color-text-muted);
    font-size: 13.5px;
}

.pricing-card .features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 36px;
    flex-grow: 1;
}

.pricing-card .features-list li {
    font-size: 13.5px;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-card .features-list li i {
    color: var(--color-primary);
    font-size: 14px;
    flex-shrink: 0;
}

.pricing-card .btn-pricing {
    width: 100%;
}

/* ==========================================================================
   6. 数据里程碑 (Stats - 极简白瓷)
   ========================================================================== */
.stats-section {
    padding: 80px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-main);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 48px;
    font-weight: 700;
    color: var(--color-text-main);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-number span {
    color: var(--color-primary);
}

.stat-label {
    font-size: 14.5px;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ==========================================================================
   7. 呼吁行动 (CTA Banner - 离框岛屿 & 缓动发光呼吸)
   ========================================================================== */
.bottom-cta-section {
    padding: 100px 0;
    position: relative;
}

.bottom-cta-wrapper {
    position: relative;
    z-index: 1;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-outer);
    padding: 8px; /* Bezel 外框 */
    max-width: 960px;
    margin: 0 auto;
    box-shadow: var(--shadow-ambient);
    transition: var(--transition-spring);
}

.bottom-cta-wrapper:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-ambient-hover);
    border-color: var(--color-border-hover);
}

.bottom-cta-inner {
    background: var(--color-bg-card);
    border-radius: var(--radius-inner);
    padding: 56px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

/* 底部 CTA 呼吸发光 orb */
.bottom-cta-inner::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    bottom: -150px;
    left: 30%;
    background: radial-gradient(circle, rgba(205, 65, 42, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
    z-index: 0;
    animation: slowFloat 15s infinite ease-in-out alternate;
}

.bottom-cta-wrapper h2 {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-main);
    position: relative;
    z-index: 2;
}

.bottom-cta-wrapper h2 span {
    color: var(--color-primary);
}

.bottom-cta-wrapper p {
    font-size: 15.5px;
    color: var(--color-text-muted);
    max-width: 600px;
    margin-bottom: 10px;
    position: relative;
    z-index: 2;
}

/* ==========================================================================
   8. 页脚 (Footer)
   ========================================================================== */
.modern-footer {
    background: #ffffff;
    border-top: 1px solid var(--color-border);
    padding: 80px 0 40px 0;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-brand img {
    height: 36px;
    align-self: flex-start;
}

.footer-brand p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 320px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-col h4 {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--color-text-main);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 13.5px;
    transition: var(--transition-spring);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-links a img {
    border-radius: 2px;
}

.footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(2px);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.footer-bottom a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-spring);
}

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

/* ==========================================================================
   9. 响应式布局自适应 (Responsive Queries)
   ========================================================================== */

@media (max-width: 1024px) {
    .modern-header {
        width: calc(100% - 24px);
        margin: 12px auto;
    }
    
    .hero-section .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .hero-tag {
        align-self: center;
    }
    .hero-description {
        max-width: 100%;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-visual {
        order: -1;
    }
    
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-card.col-span-2 {
        grid-column: span 2;
    }
    
    .showcase-section .container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .showcase-visual {
        height: 380px;
        perspective: none; /* 移动端去掉 3D 倾斜，避免渲染消耗和截断 */
    }
    .pc-mockup, .mobile-mockup {
        transform: none !important;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 440px;
        margin: 40px auto 0 auto;
    }
    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 768px) {
    .modern-header .nav-links {
        display: none;
    }
    .mobile-nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 38px;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .bento-card.col-span-2 {
        grid-column: span 1;
    }
    .bento-card.col-span-2 .inner-core {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .bottom-cta-wrapper h2 {
        font-size: 28px;
    }
}

/* 移动端菜单激活状态 */
.modern-header.mobile-open {
    border-radius: 24px;
}
.modern-header.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: #ffffff;
    padding: 30px 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 24px;
    border-radius: 0 0 24px 24px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}