/* ==================== CSS变量定义 ==================== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f0f0f0;
    --text-primary: #0a0a0a;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --accent-primary: #000000;
    --accent-secondary: #ff3366;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);

    /* 模态框和表单专用变量 */
    --text-color: #0a0a0a;
    --bg-color: #ffffff;
    --hover-bg: #f5f5f5;
}

[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --accent-primary: #ffffff;
    --accent-secondary: #ff3366;
    --border-color: #333333;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);

    /* 模态框和表单专用变量 - 暗色模式 */
    --text-color: #ffffff;
    --bg-color: #1a1a1a;
    --hover-bg: #2a2a2a;
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Arial", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 30px;
    }
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(25px) saturate(180%);
    z-index: 1000;
    transform: translateY(-100%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar.visible {
    transform: translateY(0);
}

[data-theme="dark"] .navbar {
    background: rgba(10, 10, 10, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px) saturate(200%);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(10, 10, 10, 0.85);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* 触发区域 - 顶部20px的隐藏触发条 */
.navbar-trigger {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    z-index: 999;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 0;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 50px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-secondary);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--accent-secondary);
}

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

/* 反馈按钮 */
.feedback-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    padding: 0;
    transition: color 0.3s ease;
}

.feedback-btn::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-secondary);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feedback-btn:hover {
    color: var(--accent-secondary);
}

.feedback-btn:hover::after {
    width: 100%;
}

/* 语言选择器 */
.language-selector {
    position: relative;
}

.language-toggle {
    min-width: 60px;
    height: 44px;
    border-radius: 22px;
    border: 2px solid var(--border-color);
    background-color: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-primary);
}

.language-toggle:hover {
    border-color: var(--accent-secondary);
    background-color: var(--bg-secondary);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px) saturate(180%);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 8px;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

[data-theme="dark"] .language-dropdown {
    background: rgba(26, 26, 26, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    width: 100%;
    padding: 10px 15px;
    border: none;
    background-color: transparent;
    color: var(--text-primary);
    font-size: 14px;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.language-option:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-secondary);
}

.language-option.active {
    background-color: var(--accent-secondary);
    color: #ffffff;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    transform: rotate(180deg);
    border-color: var(--accent-secondary);
}

.theme-icon {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    position: relative;
    transition: all 0.3s ease;
}

[data-theme="dark"] .theme-icon {
    background-color: transparent;
    box-shadow: inset 0 0 0 2px var(--accent-primary);
}

/* ==================== 英雄轮播区域 ==================== */
.hero-carousel {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
    /* 启用硬件加速，防止闪烁 */
    will-change: opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

/* 第1张 - 白色背景 + 红色装饰 */
.carousel-slide:nth-child(1) {
    background: linear-gradient(135deg, #ffffff 0%, #fff5f5 100%);
}

/* 第2张 - 蓝色背景 */
.carousel-slide:nth-child(2) {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
}

/* 第3张 - 绿色背景 */
.carousel-slide:nth-child(3) {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
}

/* 第1张装饰元素 - 增强晕染 */
.carousel-slide:nth-child(1)::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 8%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.22) 0%, rgba(255, 107, 107, 0.08) 50%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: float 8s ease-in-out infinite;
    filter: blur(40px);
    box-shadow: 0 0 120px rgba(255, 107, 107, 0.3);
}

.carousel-slide:nth-child(1)::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 5%;
    width: 400px;
    height: 400px;
    background: rgba(78, 205, 196, 0.18);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    z-index: 1;
    animation: morphShape 12s ease-in-out infinite;
    filter: blur(35px);
    box-shadow: 0 0 100px rgba(78, 205, 196, 0.25);
}

/* 第2张装饰元素 - 增强发光 */
.carousel-slide:nth-child(2)::before {
    content: '';
    position: absolute;
    top: 15%;
    right: 10%;
    width: 500px;
    height: 500px;
    background: rgba(33, 150, 243, 0.25);
    border-radius: 50%;
    z-index: 1;
    animation: pulse 6s ease-in-out infinite;
    filter: blur(50px);
    box-shadow: 0 0 150px rgba(33, 150, 243, 0.45), inset 0 0 80px rgba(33, 150, 243, 0.2);
}

.carousel-slide:nth-child(2)::after {
    content: '';
    position: absolute;
    bottom: 12%;
    left: 8%;
    width: 350px;
    height: 350px;
    background: rgba(25, 118, 210, 0.22);
    border-radius: 20px;
    transform: rotate(25deg);
    z-index: 1;
    animation: rotate360 20s linear infinite;
    filter: blur(30px);
    box-shadow: 0 0 90px rgba(25, 118, 210, 0.35);
}

/* 第3张装饰元素 - 自然光晕 */
.carousel-slide:nth-child(3)::before {
    content: '';
    position: absolute;
    top: 12%;
    left: 10%;
    width: 450px;
    height: 450px;
    background: rgba(76, 175, 80, 0.28);
    border-radius: 50%;
    z-index: 1;
    animation: float 10s ease-in-out infinite reverse;
    filter: blur(45px);
    box-shadow: 0 0 130px rgba(76, 175, 80, 0.4);
}

.carousel-slide:nth-child(3)::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: 10%;
    width: 380px;
    height: 380px;
    background: rgba(56, 142, 60, 0.2);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    transform: rotate(-15deg);
    z-index: 1;
    animation: morphShape 15s ease-in-out infinite reverse;
    filter: blur(38px);
    box-shadow: 0 0 95px rgba(56, 142, 60, 0.32);
}

/* 暗色主题 */
[data-theme="dark"] .carousel-slide:nth-child(1) {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a1a1a 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(1)::before {
    background: radial-gradient(circle, rgba(255, 107, 107, 0.35) 0%, rgba(255, 107, 107, 0.18) 50%, transparent 70%);
    filter: blur(50px);
    box-shadow: 0 0 180px rgba(255, 107, 107, 0.45);
}

[data-theme="dark"] .carousel-slide:nth-child(1)::after {
    background: rgba(78, 205, 196, 0.28);
    filter: blur(45px);
    box-shadow: 0 0 140px rgba(78, 205, 196, 0.38);
}

[data-theme="dark"] .carousel-slide:nth-child(2) {
    background: linear-gradient(135deg, #1E3A5F 0%, #0D47A1 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(2)::before {
    background: rgba(33, 150, 243, 0.38);
    filter: blur(60px);
    box-shadow: 0 0 200px rgba(33, 150, 243, 0.55), inset 0 0 100px rgba(33, 150, 243, 0.3);
}

[data-theme="dark"] .carousel-slide:nth-child(2)::after {
    background: rgba(25, 118, 210, 0.32);
    filter: blur(40px);
    box-shadow: 0 0 120px rgba(25, 118, 210, 0.45);
}

[data-theme="dark"] .carousel-slide:nth-child(3) {
    background: linear-gradient(135deg, #1B4332 0%, #2E7D32 100%);
}

[data-theme="dark"] .carousel-slide:nth-child(3)::before {
    background: rgba(76, 175, 80, 0.4);
    filter: blur(55px);
    box-shadow: 0 0 170px rgba(76, 175, 80, 0.5);
}

[data-theme="dark"] .carousel-slide:nth-child(3)::after {
    background: rgba(56, 142, 60, 0.3);
    filter: blur(48px);
    box-shadow: 0 0 130px rgba(56, 142, 60, 0.42);
}

/* 动画关键帧 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-30px);
    }
}

@keyframes morphShape {
    0%, 100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
        transform: rotate(0deg);
    }
    25% {
        border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%;
        transform: rotate(45deg);
    }
    50% {
        border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%;
        transform: rotate(90deg);
    }
    75% {
        border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%;
        transform: rotate(135deg);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.18;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.25;
    }
}

@keyframes rotate360 {
    from {
        transform: rotate(25deg);
    }
    to {
        transform: rotate(385deg);
    }
}

/* ==================== 装饰元素容器 ==================== */
.slide-decorations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* 网格装饰 */
.decoration-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

/* 第1张 - 对角线网格 */
.carousel-slide:nth-child(1) .decoration-grid {
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 50px, rgba(255, 107, 107, 0.05) 50px, rgba(255, 107, 107, 0.05) 51px),
        repeating-linear-gradient(-45deg, transparent, transparent 50px, rgba(78, 205, 196, 0.05) 50px, rgba(78, 205, 196, 0.05) 51px);
    animation: gridMove 30s linear infinite;
}

/* 第2张 - 垂直网格 */
.carousel-slide:nth-child(2) .decoration-grid {
    background-image:
        repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(33, 150, 243, 0.08) 80px, rgba(33, 150, 243, 0.08) 81px),
        repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(33, 150, 243, 0.06) 80px, rgba(33, 150, 243, 0.06) 81px);
}

/* 第3张 - 蜂窝网格效果 */
.carousel-slide:nth-child(3) .decoration-grid {
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(76, 175, 80, 0.06) 60px, rgba(76, 175, 80, 0.06) 61px),
        repeating-linear-gradient(60deg, transparent, transparent 60px, rgba(56, 142, 60, 0.06) 60px, rgba(56, 142, 60, 0.06) 61px),
        repeating-linear-gradient(120deg, transparent, transparent 60px, rgba(76, 175, 80, 0.06) 60px, rgba(76, 175, 80, 0.06) 61px);
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

/* 点阵装饰 */
.decoration-dots {
    position: absolute;
    width: 100%;
    height: 100%;
}

.carousel-slide:nth-child(1) .decoration-dots {
    background-image: radial-gradient(circle, rgba(255, 107, 107, 0.15) 2px, transparent 2px);
    background-size: 40px 40px;
    background-position: 20px 20px;
    animation: dotsFade 8s ease-in-out infinite;
}

.carousel-slide:nth-child(2) .decoration-dots {
    background-image: radial-gradient(circle, rgba(33, 150, 243, 0.12) 2px, transparent 2px);
    background-size: 50px 50px;
    background-position: 0 0;
    animation: dotsFade 10s ease-in-out infinite;
}

.carousel-slide:nth-child(3) .decoration-dots {
    background-image: radial-gradient(circle, rgba(76, 175, 80, 0.12) 2px, transparent 2px);
    background-size: 45px 45px;
    background-position: 10px 10px;
    animation: dotsFade 9s ease-in-out infinite;
}

@keyframes dotsFade {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

/* 光晕装饰 */
.decoration-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: glowPulse 8s ease-in-out infinite;
}

/* 第1张光晕 - 红色和青色 */
.carousel-slide:nth-child(1) .decoration-glow-1 {
    top: 20%;
    right: 15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.4), rgba(255, 107, 107, 0.1), transparent);
}

.carousel-slide:nth-child(1) .decoration-glow-2 {
    bottom: 15%;
    left: 10%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.35), rgba(78, 205, 196, 0.1), transparent);
    animation-delay: 2.7s;
}

.carousel-slide:nth-child(1) .decoration-glow-3 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 182, 193, 0.25), transparent);
    animation-delay: 5.4s;
}

.carousel-slide:nth-child(1) .decoration-glow-4 {
    top: 35%;
    left: 20%;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(186, 104, 200, 0.38), rgba(186, 104, 200, 0.12), transparent);
    animation-delay: 1.8s;
}

.carousel-slide:nth-child(1) .decoration-glow-5 {
    bottom: 25%;
    right: 22%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 152, 0, 0.32), rgba(255, 152, 0, 0.1), transparent);
    animation-delay: 4.2s;
}

/* 第2张光晕 - 蓝色系 */
.carousel-slide:nth-child(2) .decoration-glow-1 {
    top: 25%;
    left: 12%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.45), rgba(33, 150, 243, 0.15), transparent);
}

.carousel-slide:nth-child(2) .decoration-glow-2 {
    bottom: 20%;
    right: 15%;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(25, 118, 210, 0.4), rgba(25, 118, 210, 0.12), transparent);
    animation-delay: 3s;
}

.carousel-slide:nth-child(2) .decoration-glow-3 {
    top: 45%;
    right: 30%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.3), transparent);
    animation-delay: 6s;
}

.carousel-slide:nth-child(2) .decoration-glow-4 {
    top: 30%;
    right: 12%;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.36), rgba(0, 188, 212, 0.11), transparent);
    animation-delay: 2.2s;
}

.carousel-slide:nth-child(2) .decoration-glow-5 {
    bottom: 28%;
    left: 25%;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(156, 39, 176, 0.34), rgba(156, 39, 176, 0.1), transparent);
    animation-delay: 4.8s;
}

/* 第3张光晕 - 绿色系 */
.carousel-slide:nth-child(3) .decoration-glow-1 {
    top: 18%;
    right: 18%;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.42), rgba(76, 175, 80, 0.14), transparent);
}

.carousel-slide:nth-child(3) .decoration-glow-2 {
    bottom: 22%;
    left: 15%;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(56, 142, 60, 0.38), rgba(56, 142, 60, 0.1), transparent);
    animation-delay: 3.5s;
}

.carousel-slide:nth-child(3) .decoration-glow-3 {
    top: 48%;
    left: 45%;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(129, 199, 132, 0.28), transparent);
    animation-delay: 7s;
}

.carousel-slide:nth-child(3) .decoration-glow-4 {
    top: 32%;
    left: 18%;
    width: 370px;
    height: 370px;
    background: radial-gradient(circle, rgba(255, 235, 59, 0.35), rgba(255, 235, 59, 0.1), transparent);
    animation-delay: 2.5s;
}

.carousel-slide:nth-child(3) .decoration-glow-5 {
    bottom: 26%;
    right: 20%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(38, 198, 218, 0.33), rgba(38, 198, 218, 0.09), transparent);
    animation-delay: 5.1s;
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.15);
    }
}

/* 圆形装饰 - 增强光晕 */
.decoration-circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid currentColor;
    animation: circleExpand 6s ease-in-out infinite;
    box-shadow: 0 0 40px currentColor, inset 0 0 30px currentColor;
    filter: blur(1px);
}

/* 第1张圆形 */
.carousel-slide:nth-child(1) .decoration-circle-1 {
    top: 20%;
    right: 15%;
    width: 180px;
    height: 180px;
    color: rgba(255, 107, 107, 0.3);
}

.carousel-slide:nth-child(1) .decoration-circle-2 {
    bottom: 25%;
    left: 20%;
    width: 140px;
    height: 140px;
    color: rgba(78, 205, 196, 0.3);
    animation-delay: 3s;
}

/* 第2张圆形 */
.carousel-slide:nth-child(2) .decoration-circle-1 {
    top: 10%;
    left: 12%;
    width: 200px;
    height: 200px;
    color: rgba(33, 150, 243, 0.35);
}

.carousel-slide:nth-child(2) .decoration-circle-2 {
    bottom: 18%;
    right: 18%;
    width: 160px;
    height: 160px;
    color: rgba(25, 118, 210, 0.35);
    animation-delay: 3s;
}

/* 第3张圆形 */
.carousel-slide:nth-child(3) .decoration-circle-1 {
    top: 15%;
    right: 20%;
    width: 190px;
    height: 190px;
    color: rgba(76, 175, 80, 0.35);
}

.carousel-slide:nth-child(3) .decoration-circle-2 {
    bottom: 20%;
    left: 15%;
    width: 150px;
    height: 150px;
    color: rgba(56, 142, 60, 0.35);
    animation-delay: 3s;
}

@keyframes circleExpand {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}

/* 暗色主题适配 */
[data-theme="dark"] .decoration-grid {
    opacity: 0.5;
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-grid {
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 50px, rgba(255, 107, 107, 0.08) 50px, rgba(255, 107, 107, 0.08) 51px),
        repeating-linear-gradient(-45deg, transparent, transparent 50px, rgba(78, 205, 196, 0.08) 50px, rgba(78, 205, 196, 0.08) 51px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-grid {
    background-image:
        repeating-linear-gradient(90deg, transparent, transparent 80px, rgba(33, 150, 243, 0.12) 80px, rgba(33, 150, 243, 0.12) 81px),
        repeating-linear-gradient(0deg, transparent, transparent 80px, rgba(33, 150, 243, 0.1) 80px, rgba(33, 150, 243, 0.1) 81px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-grid {
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(76, 175, 80, 0.1) 60px, rgba(76, 175, 80, 0.1) 61px),
        repeating-linear-gradient(60deg, transparent, transparent 60px, rgba(56, 142, 60, 0.1) 60px, rgba(56, 142, 60, 0.1) 61px),
        repeating-linear-gradient(120deg, transparent, transparent 60px, rgba(76, 175, 80, 0.1) 60px, rgba(76, 175, 80, 0.1) 61px);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-dots {
    background-image: radial-gradient(circle, rgba(255, 107, 107, 0.25) 2px, transparent 2px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-dots {
    background-image: radial-gradient(circle, rgba(33, 150, 243, 0.2) 2px, transparent 2px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-dots {
    background-image: radial-gradient(circle, rgba(76, 175, 80, 0.2) 2px, transparent 2px);
}

/* 暗色主题光晕增强 */
[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-glow-1 {
    background: radial-gradient(circle, rgba(255, 107, 107, 0.55), rgba(255, 107, 107, 0.18), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-glow-2 {
    background: radial-gradient(circle, rgba(78, 205, 196, 0.5), rgba(78, 205, 196, 0.15), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-glow-3 {
    background: radial-gradient(circle, rgba(255, 182, 193, 0.4), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-glow-4 {
    background: radial-gradient(circle, rgba(186, 104, 200, 0.52), rgba(186, 104, 200, 0.2), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-glow-5 {
    background: radial-gradient(circle, rgba(255, 152, 0, 0.48), rgba(255, 152, 0, 0.16), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-glow-1 {
    background: radial-gradient(circle, rgba(33, 150, 243, 0.6), rgba(33, 150, 243, 0.2), transparent);
    filter: blur(75px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-glow-2 {
    background: radial-gradient(circle, rgba(25, 118, 210, 0.55), rgba(25, 118, 210, 0.18), transparent);
    filter: blur(75px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-glow-3 {
    background: radial-gradient(circle, rgba(100, 181, 246, 0.45), transparent);
    filter: blur(75px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-glow-4 {
    background: radial-gradient(circle, rgba(0, 188, 212, 0.5), rgba(0, 188, 212, 0.18), transparent);
    filter: blur(75px);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-glow-5 {
    background: radial-gradient(circle, rgba(156, 39, 176, 0.48), rgba(156, 39, 176, 0.16), transparent);
    filter: blur(75px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-glow-1 {
    background: radial-gradient(circle, rgba(76, 175, 80, 0.58), rgba(76, 175, 80, 0.2), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-glow-2 {
    background: radial-gradient(circle, rgba(56, 142, 60, 0.52), rgba(56, 142, 60, 0.16), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-glow-3 {
    background: radial-gradient(circle, rgba(129, 199, 132, 0.42), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-glow-4 {
    background: radial-gradient(circle, rgba(255, 235, 59, 0.5), rgba(255, 235, 59, 0.17), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-glow-5 {
    background: radial-gradient(circle, rgba(38, 198, 218, 0.47), rgba(38, 198, 218, 0.14), transparent);
    filter: blur(70px);
}

[data-theme="dark"] .decoration-circle {
    opacity: 0.6;
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-circle-1 {
    color: rgba(255, 107, 107, 0.5);
}

[data-theme="dark"] .carousel-slide:nth-child(1) .decoration-circle-2 {
    color: rgba(78, 205, 196, 0.5);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-circle-1 {
    color: rgba(33, 150, 243, 0.55);
}

[data-theme="dark"] .carousel-slide:nth-child(2) .decoration-circle-2 {
    color: rgba(25, 118, 210, 0.55);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-circle-1 {
    color: rgba(76, 175, 80, 0.55);
}

[data-theme="dark"] .carousel-slide:nth-child(3) .decoration-circle-2 {
    color: rgba(56, 142, 60, 0.55);
}

.slide-content {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    z-index: 10;
}

.slide-title {
    font-size: clamp(60px, 12vw, 180px);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #0a0a0a;
    margin-bottom: 30px;
    line-height: 0.9;
    position: relative;
    display: inline-block;
}

[data-theme="dark"] .slide-title {
    color: #ffffff;
}

.slide-subtitle {
    font-size: clamp(16px, 3vw, 24px);
    color: rgba(0, 0, 0, 0.65);
    margin-bottom: 50px;
    font-weight: 300;
    letter-spacing: 1px;
}

[data-theme="dark"] .slide-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px) saturate(180%);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    opacity: 0;
    pointer-events: none;
}

.carousel-btn.nearby {
    opacity: 1;
    pointer-events: auto;
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(20px) saturate(180%);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3);
}

.carousel-btn-prev {
    left: 40px;
}

.carousel-btn-next {
    right: 40px;
}

.arrow {
    width: 12px;
    height: 12px;
    border-top: 2px solid #ffffff;
    border-right: 2px solid #ffffff;
}

.arrow-left {
    transform: rotate(-135deg);
}

.arrow-right {
    transform: rotate(45deg);
}

.carousel-indicators {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
    padding: 12px 24px;
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-indicators.nearby {
    opacity: 1;
    pointer-events: auto;
}

.indicator {
    width: 40px;
    height: 3px;
    background: rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 3px;
}

.indicator.active {
    background: rgba(0, 0, 0, 0.8);
    width: 60px;
}

[data-theme="dark"] .carousel-indicators {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .indicator {
    background: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .indicator.active {
    background: rgba(255, 255, 255, 0.9);
}

/* ==================== 按钮样式 ==================== */
.btn {
    padding: 18px 45px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: none;
    background-color: transparent;
    color: #ffffff;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    border: 2px solid #0a0a0a;
    color: #0a0a0a;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: #0a0a0a;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.btn-primary:hover {
    color: #ffffff;
}

.btn-primary:hover::before {
    left: 0;
}

[data-theme="dark"] .btn-primary {
    border: 2px solid #ffffff;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .btn-primary::before {
    background-color: #ffffff;
}

[data-theme="dark"] .btn-primary:hover {
    color: #000000;
}

/* 轮播图按钮容器 */
.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* ==================== 节区标题 ==================== */
.section-header {
    margin-bottom: 100px;
    position: relative;
}

.section-number {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-secondary);
    display: block;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--accent-primary);
    margin-bottom: 20px;
    line-height: 1;
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
}

/* ==================== 特性区域 - 网格轮播 ==================== */
.features {
    padding: 150px 0;
    background-color: var(--bg-primary);
}

.features-carousel-wrapper {
    margin-top: 60px;
}

.features-carousel-container {
    position: relative;
    overflow: visible; /* 改为visible以显示外部按钮 */
    padding: 0 60px; /* 为按钮留出空间 */
}

@media (max-width: 768px) {
    .features-carousel-container {
        padding: 0 20px;
    }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    transition: transform 0.6s ease;
    position: relative; /* 为按钮定位提供参考点 */
    min-height: 400px; /* 确保有足够的高度显示内容 */
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 35px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px) saturate(150%);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.6s ease,
                transform 0.6s ease;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    will-change: opacity, transform;
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

[data-theme="dark"] .feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(15px) saturate(180%);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

[data-theme="dark"] .feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--text-tertiary);
    line-height: 1;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-number {
    color: var(--accent-secondary);
    transform: scale(1.15);
}

.feature-content {
    flex: 1;
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.feature-hint {
    font-size: 13px;
    color: var(--accent-secondary);
    line-height: 1.7;
    font-weight: 500;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.feature-card:hover .feature-hint {
    opacity: 1;
}

/* 导航按钮 */
.features-btn {
    position: absolute;
    top: 200px; /* 固定距离顶部的位置，对应网格中心 */
    width: 50px;
    height: 50px;
    border: 2px solid rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
}

[data-theme="dark"] .features-btn {
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.4);
}

.features-btn.nearby {
    opacity: 1;
    pointer-events: auto;
}

.features-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 0, 0, 0.25);
    transform: scale(1.1);
}

[data-theme="dark"] .features-btn:hover {
    background: rgba(0, 0, 0, 0.6);
    border-color: rgba(255, 255, 255, 0.3);
}

.features-btn-prev {
    left: -25px;
}

.features-btn-next {
    right: -25px;
}

.features-btn .arrow {
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--text-primary);
    border-right: 2px solid var(--text-primary);
}

/* 指示器 */
.features-indicators {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.features-indicators.nearby {
    opacity: 1;
    pointer-events: auto;
}

.features-indicator {
    width: 35px;
    height: 3px;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 3px;
}

[data-theme="dark"] .features-indicator {
    background: rgba(255, 255, 255, 0.2);
}

.features-indicator.active {
    background: var(--accent-secondary);
    width: 50px;
}

.features-indicator:hover {
    background: rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .features-indicator:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* 页数显示 */
.features-page-info {
    position: absolute;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    z-index: 10;
}

.features-page-info .page-current {
    color: var(--accent-secondary);
    font-size: 18px;
    font-weight: 700;
}

.features-page-info .page-separator {
    color: var(--text-tertiary);
    font-size: 14px;
}

.features-page-info .page-total {
    color: var(--text-secondary);
    font-size: 16px;
}

/* ==================== 下载区域 ==================== */
.download {
    padding: 150px 0;
    background-color: var(--bg-secondary);
}

.download-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    padding: 80px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .download-card {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.download-card:hover {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(25px) saturate(200%);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

[data-theme="dark"] .download-card:hover {
    background: rgba(26, 26, 26, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.3);
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 60px;
}

.version-badge {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--accent-secondary);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 30px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(255, 51, 102, 0.3);
}

.version-number {
    font-size: 72px;
    font-weight: 900;
    color: var(--accent-primary);
    margin-bottom: 15px;
    line-height: 1;
    letter-spacing: -0.02em;
}

.version-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.version-description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.version-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.meta-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.meta-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.download-action-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.btn-download {
    position: relative;
    padding: 30px 60px;
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .btn-download {
    background-color: var(--accent-secondary);
    color: #ffffff;
}

.btn-download::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: var(--accent-secondary);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-download:hover::before {
    width: 400px;
    height: 400px;
}

.btn-download:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.btn-text,
.btn-icon {
    position: relative;
    z-index: 1;
}

.download-hint {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
}

.release-notes {
    background: rgba(250, 250, 250, 0.5);
    backdrop-filter: blur(10px) saturate(150%);
    padding: 40px;
    border-left: 4px solid var(--accent-secondary);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .release-notes {
    background: rgba(26, 26, 26, 0.5);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.release-notes h4 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.release-content {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
    white-space: pre-wrap;
}

/* ==================== 安装指南 ==================== */
.installation-guide {
    margin-top: 40px;
    background: rgba(250, 250, 250, 0.5);
    backdrop-filter: blur(10px) saturate(150%);
    padding: 40px;
    border-left: 4px solid var(--accent-primary);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .installation-guide {
    background: rgba(26, 26, 26, 0.5);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.installation-guide h4 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.installation-intro {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.installation-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .step-number {
    background: var(--accent-secondary);
}

.step-content {
    flex: 1;
}

.step-content h5 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.step-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

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

.command-block {
    position: relative;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    padding: 16px 50px 16px 16px;
    margin: 15px 0;
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
}

[data-theme="dark"] .command-block {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

.command-block code {
    display: block;
    font-size: 13px;
    color: var(--text-primary);
    word-break: break-all;
    white-space: pre-wrap;
}

.copy-button {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.copy-button:hover {
    background: rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 0, 0, 0.12);
    color: var(--text-primary);
}

.copy-button.copied {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

[data-theme="dark"] .copy-button {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .copy-button:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .copy-button.copied {
    background: var(--accent-secondary);
    border-color: var(--accent-secondary);
}

.step-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-top: 12px;
}

.step-note.warning {
    background: rgba(251, 146, 60, 0.08);
    border-color: rgba(251, 146, 60, 0.2);
}

[data-theme="dark"] .step-note {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .step-note.warning {
    background: rgba(251, 146, 60, 0.12);
    border-color: rgba(251, 146, 60, 0.25);
}

.note-icon {
    flex-shrink: 0;
    font-size: 16px;
    line-height: 1;
}

.installation-help {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    text-align: center;
}

[data-theme="dark"] .installation-help {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.installation-help p {
    font-size: 15px;
    color: var(--text-secondary);
}

.installation-help a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.installation-help a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

[data-theme="dark"] .installation-help a {
    color: var(--accent-secondary);
}

[data-theme="dark"] .installation-help a:hover {
    color: var(--accent-primary);
}

.installation-confirm {
    margin-top: 30px;
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .installation-confirm {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.btn-confirm-download {
    position: relative;
    padding: 18px 48px;
    background: var(--accent-primary);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-confirm-download:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-confirm-download:active {
    transform: translateY(0);
}

.btn-confirm-download.pulse {
    animation: pulseButton 2s ease-in-out infinite;
}

@keyframes pulseButton {
    0%, 100% {
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow: 0 4px 24px rgba(255, 107, 107, 0.4);
    }
}

[data-theme="dark"] .btn-confirm-download {
    background: var(--accent-secondary);
}

[data-theme="dark"] .btn-confirm-download:hover {
    background: var(--accent-primary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .installation-guide {
        padding: 24px;
    }

    .installation-step {
        gap: 15px;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .step-content h5 {
        font-size: 16px;
    }

    .step-content p {
        font-size: 14px;
    }

    .command-block {
        padding: 12px 40px 12px 12px;
    }

    .command-block code {
        font-size: 12px;
    }

    .copy-button {
        width: 28px;
        height: 28px;
        right: 8px;
    }

    .copy-button svg {
        width: 14px;
        height: 14px;
    }

    .step-note {
        font-size: 13px;
        padding: 10px 12px;
    }
}

.no-version {
    text-align: center;
    padding: 100px;
    font-size: 18px;
    color: var(--text-tertiary);
}

/* ==================== 页脚 ==================== */
.footer {
    background-color: var(--accent-primary);
    padding: 80px 0 40px;
    color: #ffffff;
}

[data-theme="dark"] .footer {
    background-color: #0a0a0a;
    color: #ffffff;
}

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

.footer-logo {
    font-size: 48px;
    font-weight: 900;
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.footer-tagline {
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 40px;
    opacity: 0.8;
}

.footer-bottom p {
    font-size: 12px;
    opacity: 0.6;
    letter-spacing: 1px;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .download-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .version-meta-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 30px;
    }

    .nav-link {
        font-size: 12px;
    }

    .hero-carousel {
        min-height: 500px;
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
    }

    .carousel-btn-prev {
        left: 20px;
    }

    .carousel-btn-next {
        right: 20px;
    }

    .features,
    .download {
        padding: 80px 0;
    }

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

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .feature-card {
        padding: 25px;
        gap: 15px;
    }

    .features-btn {
        top: 150px; /* 平板端调整按钮位置 */
    }

    .feature-number {
        font-size: 36px;
    }

    .feature-title {
        font-size: 18px;
    }

    .feature-hint {
        font-size: 12px;
    }

    .features-btn {
        width: 45px;
        height: 45px;
        /* 在平板上让按钮更容易看到 */
        opacity: 0.7;
        pointer-events: auto;
    }

    .features-btn.nearby {
        opacity: 1;
    }

    .features-btn-prev {
        left: 5px;
    }

    .features-btn-next {
        right: 5px;
    }

    /* 平板上让指示器始终可见 */
    .features-indicators {
        opacity: 0.7;
        pointer-events: auto;
    }

    .features-indicators.nearby {
        opacity: 1;
    }

    .download-card {
        padding: 40px 30px;
    }

    .version-meta-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .btn-download {
        padding: 25px 50px;
        width: 100%;
    }
}

/* 手机端 - 单列布局 */
@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        min-height: 300px; /* 手机端调整最小高度 */
    }

    .feature-card {
        padding: 20px;
    }

    .features-btn {
        top: 120px; /* 手机端调整按钮位置 */
    }

    .feature-number {
        font-size: 32px;
    }

    .feature-title {
        font-size: 16px;
    }

    .features-btn {
        width: 40px;
        height: 40px;
        /* 在手机上让按钮始终可见 */
        opacity: 0.8;
        pointer-events: auto;
    }

    .features-btn.nearby,
    .features-btn:active {
        opacity: 1;
    }

    .features-indicators {
        bottom: -50px;
        /* 在手机上让指示器始终可见 */
        opacity: 1;
        pointer-events: auto;
    }

    /* 手机端每页只显示2个特性（在JS中动态控制） */
    .features-carousel-container {
        padding: 0 10px;
    }

    .features-indicator {
        width: 25px;
    }

    .features-indicator.active {
        width: 35px;
    }
}

/* ==================== License 申请功能样式 ==================== */

/* 申请按钮组 */
.action-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-apply {
    position: relative;
    padding: 30px 60px;
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .btn-apply {
    background-color: var(--accent-secondary);
    color: #ffffff;
}

.btn-apply::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: var(--accent-secondary);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-apply:hover::before {
    width: 400px;
    height: 400px;
}

.btn-apply:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(30px);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--bg-color);
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--hover-bg);
    transform: rotate(90deg);
}

.modal-body {
    padding: 30px;
}

/* License 测试阶段提醒 */
.license-notice {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    padding: 15px 18px;
    margin-bottom: 25px;
}

.license-notice p {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(59, 130, 246, 1);
}

[data-theme="dark"] .license-notice {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .license-notice p {
    color: rgba(96, 165, 250, 1);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group .required {
    color: #ff6b6b;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-color);
    background: var(--bg-color);
    transition: all 0.3s ease;
    font-family: inherit;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Select下拉框样式 */
select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

[data-theme="dark"] select.form-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23b0b0b0' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

select.form-control option {
    background: var(--bg-color);
    color: var(--text-color);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.btn-parse {
    margin-top: 10px;
    padding: 8px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-parse:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.form-divider {
    text-align: center;
    margin: 25px 0;
    position: relative;
}

.form-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.form-divider span {
    position: relative;
    background: var(--bg-color);
    padding: 0 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 反馈标签导航 */
.feedback-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--border-color);
}

.feedback-tab {
    flex: 1;
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.feedback-tab:hover {
    color: var(--text-color);
    background: var(--hover-bg);
}

.feedback-tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

[data-theme="dark"] .feedback-tab.active {
    color: var(--accent-secondary);
    border-bottom-color: var(--accent-secondary);
}

/* 反馈面板 */
.feedback-panel {
    display: none;
}

.feedback-panel.active {
    display: block;
}

/* 查询结果容器 */
.feedback-results-wrapper {
    margin-top: 24px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(139, 92, 246, 0.03));
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .feedback-results-wrapper {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.08));
}

.feedback-results-wrapper:has(.feedback-results:empty) {
    display: none;
}

/* 查询结果滚动区域 */
.feedback-results {
    max-height: 480px;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.feedback-results::-webkit-scrollbar {
    display: none;
}

.feedback-results:empty {
    display: none;
}

/* 反馈项卡片 */
.feedback-result-item {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 12px;
    transition: all 0.25s ease;
}

.feedback-result-item:last-child {
    margin-bottom: 0;
}

.feedback-result-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.3);
}

[data-theme="dark"] .feedback-result-item:hover {
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
}

/* 反馈头部 */
.feedback-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

/* 类型和状态标签 */
.feedback-result-type,
.feedback-result-status {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.feedback-result-type.suggestion {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.15));
    color: rgb(59, 130, 246);
}

.feedback-result-type.bug {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(244, 63, 94, 0.15));
    color: rgb(239, 68, 68);
}

.feedback-result-type.question {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.15), rgba(245, 158, 11, 0.15));
    color: rgb(251, 146, 60);
}

.feedback-result-type.other {
    background: linear-gradient(135deg, rgba(107, 114, 128, 0.15), rgba(156, 163, 175, 0.15));
    color: rgb(107, 114, 128);
}

.feedback-result-status.pending {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.15), rgba(245, 158, 11, 0.15));
    color: rgb(251, 146, 60);
}

.feedback-result-status.processing {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.15));
    color: rgb(59, 130, 246);
}

.feedback-result-status.completed {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(16, 185, 129, 0.15));
    color: rgb(34, 197, 94);
}

/* 反馈内容 */
.feedback-result-content {
    margin-bottom: 14px;
}

.feedback-result-content h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
    opacity: 0.7;
}

.feedback-result-content p {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
}

/* 官方回复 */
.feedback-result-reply {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(139, 92, 246, 0.06));
    border-left: 3px solid rgb(99, 102, 241);
    padding: 14px 16px;
    border-radius: 8px;
    margin-top: 12px;
}

[data-theme="dark"] .feedback-result-reply {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.12));
}

.feedback-result-reply h4 {
    font-size: 13px;
    font-weight: 600;
    color: rgb(99, 102, 241);
    margin-bottom: 8px;
}

.feedback-result-reply p {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
}

/* 时间信息 */
.feedback-result-date {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 12px;
    opacity: 0.7;
}

/* 无结果提示 */
.feedback-no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.feedback-no-results p {
    font-size: 14px;
    margin: 0;
    opacity: 0.8;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    justify-content: flex-end;
}

.btn-cancel,
.btn-submit {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-cancel {
    background: var(--hover-bg);
    color: var(--text-color);
}

.btn-cancel:hover {
    background: var(--border-color);
}

.btn-submit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* 通知样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    color: white;
    font-size: 0.95rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10001;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.notification-error {
    background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
}

.notification-warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.notification-info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* 暗色主题适配 */
[data-theme="dark"] .modal {
    background: rgba(0, 0, 0, 0.85);
}

[data-theme="dark"] .modal-content {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .action-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-download,
    .btn-apply {
        width: 100%;
    }

    .modal-content {
        margin: 0 10px;
    }

    .modal-header,
    .modal-body {
        padding: 20px;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-cancel,
    .btn-submit {
        width: 100%;
    }

    .notification {
        left: 20px;
        right: 20px;
    }
}

/* ==================== 核心特性详情页样式 ==================== */

/* 特性卡片可点击效果 */
.feature-card {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.feature-card:active {
    transform: translateY(-2px) scale(1.01);
}

/* 较大的模态框 */
.modal-content.modal-lg {
    max-width: 80vw !important;
    width: 80vw !important;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px;
}

/* Markdown 内容渲染样式 */
.markdown-content {
    line-height: 2;
    color: var(--text-primary);
    font-size: 18px;
    max-width: 100%;
    padding: 20px;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin-top: 32px;
    margin-bottom: 20px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.markdown-content h1 {
    font-size: 2em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}

.markdown-content h2 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}

.markdown-content h3 {
    font-size: 1.25em;
}

.markdown-content h4 {
    font-size: 1em;
}

.markdown-content h5 {
    font-size: 0.875em;
}

.markdown-content h6 {
    font-size: 0.85em;
    color: var(--text-secondary);
}

.markdown-content p {
    margin-bottom: 24px;
    line-height: 2;
}

.markdown-content a {
    color: var(--accent-secondary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.markdown-content a:hover {
    border-bottom-color: var(--accent-secondary);
}

.markdown-content ul,
.markdown-content ol {
    margin-bottom: 24px;
    padding-left: 2.5em;
}

.markdown-content li {
    margin-bottom: 12px;
    line-height: 1.8;
}

.markdown-content code {
    background: var(--bg-secondary);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    font-size: 0.9em;
    color: var(--accent-secondary);
}

.markdown-content pre {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.markdown-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
    font-size: 0.9em;
}

.markdown-content blockquote {
    border-left: 4px solid var(--accent-secondary);
    padding-left: 24px;
    margin: 24px 0;
    color: var(--text-secondary);
    font-style: italic;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.markdown-content table th,
.markdown-content table td {
    padding: 16px 20px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.markdown-content table th {
    background: var(--bg-secondary);
    font-weight: 600;
}

.markdown-content table tr:nth-child(even) {
    background: var(--bg-secondary);
}

.markdown-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 32px 0;
}

.markdown-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 40px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content.modal-lg {
        max-width: 95% !important;
        width: 95% !important;
        max-height: 90vh;
        padding: 20px;
    }

    .markdown-content {
        font-size: 16px;
        padding: 10px;
    }

    .markdown-content h1 {
        font-size: 1.75em;
    }

    .markdown-content h2 {
        font-size: 1.4em;
    }

    .markdown-content h3 {
        font-size: 1.2em;
    }

    .markdown-content pre {
        padding: 12px;
        font-size: 0.85em;
    }

    .markdown-content table {
        font-size: 0.9em;
    }

    .markdown-content table th,
    .markdown-content table td {
        padding: 8px 12px;
    }
}