/* ===== 专业网站建设作品集 V2 - 独特设计风格 ===== */

/* ===== 变量系统 ===== */
:root {
    /* 主题色 - 深紫色到粉色渐变 */
    --primary: #7C3AED;
    --primary-dark: #5B21B6;
    --primary-light: #8B5CF6;
    --accent: #EC4899;
    --accent-light: #F472B6;
    
    /* 中性色 */
    --bg-dark: #0F0A1A;
    --bg-card: #1A1425;
    --bg-card-hover: #251D35;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --border: rgba(148, 163, 184, 0.1);
    --border-light: rgba(148, 163, 184, 0.15);
    
    /* 功能色 */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    
    /* 光晕效果 */
    --glow-primary: 0 0 40px rgba(124, 58, 237, 0.4);
    --glow-accent: 0 0 40px rgba(236, 72, 153, 0.3);
    
    /* 圆角 */
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== 动态背景效果 ===== */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.aurora {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: aurora-float 20s ease-in-out infinite;
}

.aurora-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary) 0%, transparent 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.aurora-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--accent) 0%, transparent 100%);
    top: 50%;
    right: -150px;
    animation-delay: -7s;
}

.aurora-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #8B5CF6 0%, transparent 100%);
    bottom: -100px;
    left: 30%;
    animation-delay: -14s;
}

@keyframes aurora-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, 50px) scale(1.1); }
    50% { transform: translate(0, 100px) scale(1); }
    75% { transform: translate(-50px, 50px) scale(0.9); }
}

/* 网格背景 */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background-image: 
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* 粒子效果 */
.sparkles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

.sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    animation: sparkle-animation 3s ease-in-out infinite;
}

@keyframes sparkle-animation {
    0%, 100% { opacity: 0; transform: scale(0); }
    50% { opacity: 1; transform: scale(1); }
}

/* ===== 容器 ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.glass {
    background: rgba(15, 10, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.navbar.scrolled {
    background: rgba(15, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
}

.logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: var(--glow-primary);
}

.logo-text {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.8px;
    line-height: 1;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    position: relative;
    padding: 10px 18px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--radius);
}

.nav-links a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--border-light);
    border-radius: var(--radius);
    opacity: 0;
    transition: var(--transition);
}

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

.nav-links a:hover::before {
    opacity: 1;
}

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

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

/* ===== 按钮样式 ===== */
.btn-primary,
.btn-secondary,
.btn-outline {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
}

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

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

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

/* 按钮光泽效果 */
.btn-glow {
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.5);
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

.btn-primary:hover .btn-shine {
    left: 100%;
}

/* ===== 首屏区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 80px;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

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

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 64px;
    line-height: 1.05;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    letter-spacing: -2px;
}

.title-line {
    display: block;
}

.hero-title .highlight-gradient {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-features {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.feature-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-secondary);
}

.feature-pill i {
    color: var(--primary-light);
}

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

.hero-cta .btn-secondary i {
    transition: var(--transition);
}

.hero-cta .btn-secondary:hover i {
    transform: translateX(4px);
}

.trust-indicators {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.trust-indicators .indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.trust-indicators .indicator i {
    color: var(--success);
    font-size: 16px;
}

/* 首屏视觉卡片 */
.hero-visual {
    perspective: 1000px;
}

.visual-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-slow);
    transform-style: preserve-3d;
}

.visual-card:hover {
    transform: rotateY(-5deg) rotateX(5deg);
    box-shadow: var(--shadow-xl), var(--glow-primary);
}

.card-shine {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 50%
    );
    pointer-events: none;
}

.card-content {
    padding: 40px;
    position: relative;
}

.code-window {
    background: var(--bg-dark);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.window-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

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

.window-header .dot.red { background: #EF4444; }
.window-header .dot.yellow { background: #F59E0B; }
.window-header .dot.green { background: #10B981; }

.window-header .browser-url {
    margin-left: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-dark);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    flex: 1;
    max-width: 280px;
}

.window-header .browser-url i {
    font-size: 10px;
    color: var(--success);
}

.window-header .title {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-muted);
    font-family: 'Monaco', 'Consolas', monospace;
}

.code-body {
    padding: 0;
    background: var(--bg-dark);
    min-height: 200px;
}

/* 网页预览样式 */
.website-preview {
    padding: 20px;
    background: #fff;
    min-height: 200px;
    color: #1a1a2e;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 20px;
}

.preview-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 16px;
    color: #7C3AED;
}

.preview-logo .logo-square {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
    border-radius: 6px;
}

.preview-nav {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #6b7280;
}

.preview-nav span {
    cursor: default;
}

.preview-hero {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 12px;
}

.preview-headline {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
}

.preview-subtext {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 16px;
}

.preview-button {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
    color: white;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
}

.stats-floating {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-stat {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    animation: float-animation 3s ease-in-out infinite;
}

.float-stat.stat-2 {
    animation-delay: -1.5s;
}

@keyframes float-animation {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.stat-icon {
    font-size: 20px;
}

.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

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

/* 滚动指示器 */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 13px;
    opacity: 0.6;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid currentColor;
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: currentColor;
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel-animation 2s ease-in-out infinite;
}

@keyframes scroll-wheel-animation {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(12px); }
}

/* ===== 通用章节样式 ===== */
section {
    position: relative;
    z-index: 10;
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 48px;
    line-height: 1.1;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -1.5px;
}

.section-title-left {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 42px;
    line-height: 1.1;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -1.5px;
    text-align: left;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 信任背书条 - 无限滚动 ===== */
.trust-bar {
    position: relative;
    z-index: 10;
    padding: 60px 0;
    overflow: hidden;
}

.trust-bar-inner {
    position: relative;
    mask-image: linear-gradient(
        to right,
        transparent,
        black 20%,
        black 80%,
        transparent
    );
    -webkit-mask-image: linear-gradient(
        to right,
        transparent,
        black 20%,
        black 80%,
        transparent
    );
}

.trust-track {
    display: flex;
    gap: 80px;
    animation: trust-scroll 40s linear infinite;
}

@keyframes trust-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.trust-logos {
    display: flex;
    gap: 80px;
    align-items: center;
    flex-shrink: 0;
}

.logo-item {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.4;
    transition: var(--transition);
    letter-spacing: -1px;
}

.logo-item:hover {
    opacity: 0.8;
    color: var(--text-primary);
}

/* ===== 痛点区域 ===== */
.pain-points {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 100%);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
    align-items: stretch;
}

.pain-card {
    position: relative;
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pain-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.pain-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
}

.pain-card:hover::before {
    opacity: 1;
}

.pain-icon-box {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(245, 158, 11, 0.05) 100%);
    border-radius: 50%;
}

.pain-icon-box i {
    position: relative;
    font-size: 36px;
    color: #EF4444;
}

.pain-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    min-height: 56px;
    line-height: 1.35;
}

.pain-card p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    min-height: 48px;
    line-height: 1.4;
}

.pain-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    width: 100%;
}

.pain-stat .stat-big {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 42px;
    font-weight: 700;
    color: var(--error);
    line-height: 1;
    letter-spacing: -1px;
}

.pain-stat .stat-desc {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    text-align: center;
}

.pain-stat .stat-source {
    font-size: 10px;
    color: var(--text-muted);
    opacity: 0.6;
    font-weight: 400;
    letter-spacing: 0.3px;
}

.pain-solution {
    position: relative;
    padding: 0;
    background: transparent;
    border-radius: var(--radius-xl);
    overflow: visible;
    margin-top: 24px;
}

.solution-wrapper {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 48px;
    overflow: hidden;
    transition: var(--transition-slow);
}

.solution-wrapper:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(124, 58, 237, 0.15);
}

.solution-glow {
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: conic-gradient(
        from 180deg,
        transparent 0deg,
        rgba(124, 58, 237, 0.08) 60deg,
        transparent 120deg,
        rgba(236, 72, 153, 0.08) 180deg,
        transparent 240deg,
        rgba(124, 58, 237, 0.08) 300deg,
        transparent 360deg
    );
    animation: glow-rotate 12s linear infinite;
    pointer-events: none;
    filter: blur(40px);
}

@keyframes glow-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.solution-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}

.solution-main {
    text-align: left;
}

.solution-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 20px;
    margin-bottom: 24px;
    box-shadow: var(--glow-primary);
}

.solution-icon-box i {
    font-size: 36px;
    color: white;
}

.solution-main h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 32px;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.solution-main p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 28px;
}

.solution-features {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.solution-feature {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.solution-feature:hover {
    border-color: var(--primary-light);
    background: rgba(124, 58, 237, 0.1);
    color: var(--text-primary);
}

.solution-feature i {
    color: var(--primary-light);
    font-size: 16px;
}

.solution-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.stat-box:hover {
    border-color: var(--primary-light);
    transform: translateY(-4px);
}

.stat-box .stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-box .stat-label {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ===== 案例展示区 - 分层展示 ===== */
.portfolio {
    background: var(--bg-dark);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

/* 背景光效 */
.portfolio-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.portfolio-glow.glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #7C3AED 0%, transparent 70%);
    top: -200px;
    left: -100px;
    animation: float-slow 15s ease-in-out infinite;
}

.portfolio-glow.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #EC4899 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation: float-slow 18s ease-in-out infinite reverse;
}

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.portfolio-showcase {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* 行布局 */
.portfolio-row {
    display: grid;
    gap: 28px;
}

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

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

.row-compact {
    grid-template-columns: repeat(4, 1fr);
}

/* 卡片基础样式 */
.showcase-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-slow);
    opacity: 0;
    transform: translateY(30px);
}

.showcase-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.showcase-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-light);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), 0 0 80px rgba(124, 58, 237, 0.15);
}

/* 图片区域 */
.showcase-image {
    position: relative;
    width: 100%;
    padding-top: 62.5%; /* 8:5 比例 */
    overflow: hidden;
    background: var(--bg-dark);
}

.featured-card .showcase-image {
    padding-top: 56.25%; /* 16:9 比例 */
}

.compact-card .showcase-image {
    padding-top: 75%; /* 4:3 比例 */
}

.showcase-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.92) contrast(1.05);
}

.showcase-card:hover .showcase-image img {
    transform: scale(1.08);
    filter: brightness(1) contrast(1.1);
}

.showcase-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 0;
    transition: var(--transition);
    background: linear-gradient(180deg, rgba(15,10,26,0.4) 0%, rgba(15,10,26,0.92) 100%);
}

.showcase-card:hover .showcase-overlay {
    opacity: 1;
}

.btn-showcase {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.98);
    color: var(--primary);
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    transform: translateY(16px);
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.showcase-card:hover .btn-showcase {
    transform: translateY(0);
}

.btn-showcase:hover {
    background: white;
    transform: translateY(-3px) !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* 内容区域 */
.showcase-content {
    padding: 24px;
}

.featured-card .showcase-content {
    padding: 28px;
}

.compact-card .showcase-content {
    padding: 20px;
}

.showcase-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.showcase-tag {
    display: inline-block;
    padding: 5px 13px;
    background: var(--bg-dark);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.tag-restaurant { color: #F59E0B; }
.tag-fitness { color: #EF4444; }
.tag-saas { color: #8B5CF6; }
.tag-law { color: #3B82F6; }
.tag-medical { color: #10B981; }
.tag-education { color: #EC4899; }
.tag-design { color: #06B6D4; }
.tag-ecommerce { color: #84CC16; }
.tag-creative { color: #F472B6; }

.showcase-year {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.showcase-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 21px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    letter-spacing: -0.5px;
    line-height: 1.3;
}

.featured-card .showcase-content h3 {
    font-size: 24px;
}

.compact-card .showcase-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

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

.compact-card .showcase-content p {
    display: none;
}

/* 技术栈标签 */
.showcase-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.showcase-tech span {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-dark);
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* 响应式 */
@media (max-width: 1200px) {
    .row-standard {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    .row-featured {
        grid-template-columns: 1fr;
    }
    
    .row-standard {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .row-compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    /* 全局移动端优化 - 防止溢出 */
    * {
        box-sizing: border-box;
    }
    
    body {
        overflow-x: hidden;
        width: 100%;
    }
    
    .container {
        padding-left: 20px !important;
        padding-right: 20px !important;
    }
    
    section {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    /* 解决方案区域移动端优化 */
    .solution-wrapper {
        padding: 32px 20px;
        width: 100%;
        max-width: 100%;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        width: 100%;
    }
    
    .solution-main h3 {
        font-size: 24px;
        word-break: break-word;
    }
    
    .solution-features {
        justify-content: center;
        width: 100%;
    }
    
    .solution-feature {
        font-size: 13px;
        padding: 8px 14px;
        white-space: nowrap;
    }
    
    .solution-stats {
        grid-template-columns: 1fr;
        gap: 16px;
        width: 100%;
    }
    
    .stat-box {
        padding: 20px 16px;
        flex-direction: row;
        justify-content: flex-start;
        gap: 16px;
        width: 100%;
    }
    
    .stat-box .stat-value {
        font-size: 32px;
        min-width: 80px;
        text-align: left;
    }
    
    .stat-box .stat-label {
        font-size: 14px;
        text-align: left;
    }
    
    /* 强制所有图片和容器不超出 */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* 修复网格布局 */
    .portfolio-row {
        grid-template-columns: 1fr;
        width: 100%;
    }
    
    .showcase-content h3 {
        font-size: 19px;
    }
    
    .featured-card .showcase-content h3 {
        font-size: 22px;
    }
}

/* ===== 服务价格 ===== */
.services {
    background: var(--bg-card);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.pricing-card {
    position: relative;
    padding: 40px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), var(--glow-primary);
}

.featured-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: white;
}

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

.card-header h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.card-price {
    text-align: center;
    margin-bottom: 40px;
}

.card-price .currency {
    font-size: 24px;
    color: var(--text-muted);
    vertical-align: top;
}

.card-price .amount {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 56px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-price .period {
    font-size: 16px;
    color: var(--text-muted);
}

.features {
    list-style: none;
    margin-bottom: 32px;
}

.features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}

.features li:last-child {
    border-bottom: none;
}

.feature-check i {
    color: var(--success);
    font-size: 16px;
}

.feature-unavailable {
    color: var(--text-muted);
    opacity: 0.5;
}

.feature-unavailable i {
    color: var(--text-muted);
}

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

.pricing-note i {
    margin-right: 6px;
}

/* ===== 工作流程 ===== */
.process {
    background: var(--bg-dark);
}

.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.process-step:hover {
    transform: translateX(8px);
    border-color: var(--border-light);
}

.step-number {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: white;
}

.step-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

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

.about-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
}

.frame-accent {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.3) 0%, rgba(236, 72, 153, 0.1) 100%);
    pointer-events: none;
}

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

.about-intro {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

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

.about-content strong {
    color: var(--text-primary);
}

.about-list {
    list-style: none;
    margin: 24px 0;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 16px;
    color: var(--text-primary);
}

.about-list li i {
    color: var(--success);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat .stat-number {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

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

/* ===== FAQ ===== */
.faq {
    background: var(--bg-dark);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-dark);
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== 联系区域 - 全新高级设计 ===== */
.contact {
    position: relative;
    padding: 140px 0;
    background: var(--bg-dark);
    overflow: hidden;
}

.contact-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.contact-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orb-float 20s ease-in-out infinite;
}

.contact-orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.4) 0%, rgba(236, 72, 153, 0.2) 100%);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.contact-orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.3) 0%, rgba(124, 58, 237, 0.1) 100%);
    bottom: -150px;
    right: -50px;
    animation-delay: -7s;
}

.contact-orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25) 0%, rgba(124, 58, 237, 0.15) 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.contact-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(124, 58, 237, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 40%, black 0%, transparent 70%);
}

.contact-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    position: relative;
    background: rgba(26, 20, 37, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 24px;
    padding: 60px 48px;
    text-align: center;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(124, 58, 237, 0.5), transparent);
}

.card-shine {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.contact-card:hover .card-shine {
    opacity: 1;
}

.contact-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 100px;
    font-size: 13px;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 32px;
}

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

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

.contact-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1.15;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -1.5px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 50%, var(--primary-light) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 5s linear infinite;
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.contact-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.6;
}

.contact-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.action-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: 16px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    cursor: pointer;
}

.action-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(236, 72, 153, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.action-btn:hover::before {
    opacity: 1;
}

.action-btn:hover {
    border-color: rgba(124, 58, 237, 0.4);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2);
}

.action-btn-primary {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-color: rgba(124, 58, 237, 0.4);
}

.action-btn-primary:hover {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.3) 0%, rgba(236, 72, 153, 0.15) 100%);
    border-color: rgba(124, 58, 237, 0.6);
    box-shadow: 0 25px 50px rgba(124, 58, 237, 0.3);
}

.btn-icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(124, 58, 237, 0.15);
    border-radius: 12px;
    color: var(--primary-light);
    font-size: 18px;
    transition: all 0.3s ease;
}

.action-btn:hover .btn-icon {
    background: var(--primary);
    color: white;
    transform: rotate(-10deg) scale(1.1);
}

.btn-text {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    text-align: left;
}

.btn-text strong {
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.3;
}

.btn-text small {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 400;
    margin-top: 2px;
}

.btn-arrow {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.action-btn:hover .btn-arrow {
    color: var(--primary-light);
    transform: translateX(6px);
}

.contact-trust {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
}

.trust-item i {
    color: var(--success);
    font-size: 16px;
}

.contact-floating {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.float-item {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(26, 20, 37, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: float-bounce 6s ease-in-out infinite;
}

.float-item i {
    color: var(--accent);
    font-size: 14px;
}

.float-1 {
    top: 20%;
    left: -5%;
    animation-delay: 0s;
}

.float-2 {
    bottom: 25%;
    right: -5%;
    animation-delay: -3s;
}

@keyframes float-bounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

/* 移动端适配 */
@media (max-width: 768px) {
    /* 解决方案区域平板优化 */
    .solution-wrapper {
        padding: 40px 24px;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .solution-main h3 {
        font-size: 26px;
    }
    
    .solution-features {
        justify-content: flex-start;
    }
    
    .solution-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stat-box {
        padding: 20px 16px;
    }
    
    .stat-box .stat-value {
        font-size: 28px;
    }
    
    .stat-box .stat-label {
        font-size: 13px;
    }
    
    /* 联系区域 */
    .contact {
        padding: 80px 0;
    }
    
    .contact-card {
        padding: 40px 24px;
    }
    
    .contact-actions {
        grid-template-columns: 1fr;
    }
    
    .contact-trust {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    .contact-floating {
        display: none;
    }
}

/* ===== 页脚 ===== */
.footer {
    position: relative;
    z-index: 10;
    padding: 80px 0 40px;
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.footer-speed {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-secondary);
}

.speed-score {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--success);
}

.footer-links h4,
.footer-contact h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-muted);
}

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

.footer-legal a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

/* ===== 动画效果 ===== */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
    animation-delay: var(--delay, 0s);
}

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

.reveal-card,
.reveal-step {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-card.revealed,
.reveal-step.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .bento-large {
        grid-column: span 2;
    }
}

@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .trust-indicators {
        justify-content: center;
    }
    
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bento-large {
        grid-column: span 2;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .about-content .section-title-left {
        text-align: center;
    }
    
    .about-content .section-tag {
        text-align: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 640px) {
    section {
        padding: 80px 0;
    }
    
    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .section-title-left {
        font-size: 28px;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-large,
    .bento-medium,
    .bento-small {
        grid-column: span 1;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pain-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .trust-logos {
        gap: 40px;
    }
    
    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}