/* ================================
   抖音代刷服务 - 第九版金色奢华主题
   设计理念：奢华、高端、成功、璀璨
   ================================ */

/* CSS 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS 变量定义 */
:root {
    /* 金色奢华主题色彩 */
    --gold-dark: #b8860b;
    --gold-bright: #ffd700;
    --gold-light: #fff8dc;
    --gold-gradient: linear-gradient(135deg, #b8860b, #ffd700);
    --gold-radial: radial-gradient(circle, #ffd700, #b8860b);
    
    /* 背景色彩 */
    --black-primary: #1a1a1a;
    --gray-dark: #2d2d2d;
    --gray-medium: #3a3a3a;
    --white: #ffffff;
    --gray-light: #cccccc;
    
    /* 发光和阴影效果 */
    --gold-glow: rgba(255, 215, 0, 0.3);
    --gold-glow-strong: rgba(255, 215, 0, 0.6);
    --shadow-dark: rgba(0, 0, 0, 0.5);
    --shadow-black: rgba(0, 0, 0, 0.8);
    
    /* 字体系统 */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 间距系统 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    --spacing-4xl: 128px;
    
    /* 阴影系统 */
    --shadow-luxury-sm: 0 8px 24px var(--shadow-dark);
    --shadow-luxury-md: 0 16px 48px var(--shadow-dark);
    --shadow-luxury-lg: 0 24px 64px var(--shadow-black);
    --shadow-gold-glow: 0 0 30px var(--gold-glow);
    --shadow-gold-strong: 0 0 50px var(--gold-glow-strong);
    
    /* 边框半径 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* 过渡效果 */
    --transition-luxury: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-smooth: all 0.3s ease-in-out;
    --transition-glow: all 0.6s ease-in-out;
}

/* 基础HTML样式 */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--white);
    background: var(--black-primary);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* 金色粒子背景系统 */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -3;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--gold-gradient);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat linear infinite;
}

.particle-1 {
    width: 4px;
    height: 4px;
    top: -5%;
    left: 10%;
    animation-duration: 8s;
    animation-delay: 0s;
}

.particle-2 {
    width: 6px;
    height: 6px;
    top: -5%;
    left: 25%;
    animation-duration: 12s;
    animation-delay: 2s;
}

.particle-3 {
    width: 3px;
    height: 3px;
    top: -5%;
    left: 40%;
    animation-duration: 10s;
    animation-delay: 4s;
}

.particle-4 {
    width: 5px;
    height: 5px;
    top: -5%;
    left: 55%;
    animation-duration: 14s;
    animation-delay: 1s;
}

.particle-5 {
    width: 4px;
    height: 4px;
    top: -5%;
    left: 70%;
    animation-duration: 9s;
    animation-delay: 3s;
}

.particle-6 {
    width: 7px;
    height: 7px;
    top: -5%;
    left: 85%;
    animation-duration: 11s;
    animation-delay: 5s;
}

.particle-7 {
    width: 3px;
    height: 3px;
    top: -5%;
    left: 15%;
    animation-duration: 13s;
    animation-delay: 6s;
}

.particle-8 {
    width: 5px;
    height: 5px;
    top: -5%;
    left: 35%;
    animation-duration: 7s;
    animation-delay: 2.5s;
}

.particle-9 {
    width: 4px;
    height: 4px;
    top: -5%;
    left: 60%;
    animation-duration: 15s;
    animation-delay: 4.5s;
}

.particle-10 {
    width: 6px;
    height: 6px;
    top: -5%;
    left: 80%;
    animation-duration: 8.5s;
    animation-delay: 1.5s;
}

.particle-11 {
    width: 3px;
    height: 3px;
    top: -5%;
    left: 5%;
    animation-duration: 12.5s;
    animation-delay: 3.5s;
}

.particle-12 {
    width: 5px;
    height: 5px;
    top: -5%;
    left: 95%;
    animation-duration: 9.5s;
    animation-delay: 5.5s;
}

/* 璀璨星光效果 */
.starlight-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -2;
    overflow: hidden;
}

.starlight {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--white);
    border-radius: 50%;
    animation: starTwinkle 2s ease-in-out infinite;
}

.starlight::before,
.starlight::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: var(--white);
    border-radius: 50%;
}

.starlight::before {
    width: 20px;
    height: 1px;
    transform: translate(-50%, -50%);
}

.starlight::after {
    width: 1px;
    height: 20px;
    transform: translate(-50%, -50%);
}

.star-1 {
    top: 15%;
    left: 20%;
    animation-delay: 0s;
}

.star-2 {
    top: 25%;
    right: 30%;
    animation-delay: 0.5s;
}

.star-3 {
    top: 40%;
    left: 10%;
    animation-delay: 1s;
}

.star-4 {
    top: 60%;
    right: 20%;
    animation-delay: 1.5s;
}

.star-5 {
    top: 35%;
    left: 60%;
    animation-delay: 2s;
}

.star-6 {
    top: 70%;
    left: 40%;
    animation-delay: 2.5s;
}

.star-7 {
    top: 20%;
    left: 80%;
    animation-delay: 3s;
}

.star-8 {
    top: 80%;
    right: 10%;
    animation-delay: 3.5s;
}

/* 光芒四射背景 */
.radiant-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.radiant-rays {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg,
        var(--gold-glow) 10deg,
        transparent 20deg,
        transparent 40deg,
        var(--gold-glow) 50deg,
        transparent 60deg,
        transparent 80deg,
        var(--gold-glow) 90deg,
        transparent 100deg,
        transparent 120deg,
        var(--gold-glow) 130deg,
        transparent 140deg,
        transparent 160deg,
        var(--gold-glow) 170deg,
        transparent 180deg,
        transparent 200deg,
        var(--gold-glow) 210deg,
        transparent 220deg,
        transparent 240deg,
        var(--gold-glow) 250deg,
        transparent 260deg,
        transparent 280deg,
        var(--gold-glow) 290deg,
        transparent 300deg,
        transparent 320deg,
        var(--gold-glow) 330deg,
        transparent 340deg,
        transparent 360deg
    );
    transform: translate(-50%, -50%);
    animation: radiateGlow 20s linear infinite;
    opacity: 0.1;
}

.golden-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        var(--gold-glow) 0%,
        transparent 50%
    );
    opacity: 0.05;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--gold-dark);
    z-index: 1000;
    transition: var(--transition-luxury);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-logo {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1) sepia(1) saturate(10000%) hue-rotate(45deg);
    animation: logoGlow 3s ease-in-out infinite;
}

.brand-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px var(--gold-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition-luxury);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: var(--transition-luxury);
}

.nav-link:hover {
    color: var(--gold-bright);
    text-shadow: 0 0 10px var(--gold-glow);
}

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

.nav-cta {
    background: var(--gold-gradient);
    color: var(--black-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition-luxury);
    box-shadow: var(--shadow-gold-glow);
    position: relative;
    overflow: hidden;
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.nav-cta:hover::before {
    left: 100%;
}

.nav-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold-strong);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--gold-gradient);
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* 主要内容区域 */
.main-content {
    position: relative;
    z-index: 1;
    margin-top: 80px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 英雄区域样式 */
.hero-section {
    padding: var(--spacing-4xl) 0;
    text-align: center;
    position: relative;
    background: radial-gradient(
        ellipse at center,
        rgba(255, 215, 0, 0.1) 0%,
        transparent 70%
    );
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    animation: heroFadeIn 1.5s ease-out;
}

.hero-crown {
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: center;
}

.crown-jewel {
    width: 60px;
    height: 40px;
    background: var(--gold-gradient);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    position: relative;
    animation: crownFloat 3s ease-in-out infinite;
}

.crown-jewel::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 10px;
    background: var(--gold-bright);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--gold-glow);
}

.hero-logo-container {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.hero-logo {
    width: 150px;
    height: 150px;
    filter: brightness(0) invert(1) sepia(1) saturate(10000%) hue-rotate(45deg);
    animation: logoFloat 4s ease-in-out infinite;
    position: relative;
    z-index: 3;
}

.logo-golden-aura {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--gold-glow-strong) 0%, transparent 70%);
    border-radius: 50%;
    animation: auraPulse 2s ease-in-out infinite;
    z-index: 1;
}

.logo-sparkles {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    z-index: 2;
}

.sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--white);
    border-radius: 50%;
    animation: sparkleGlow 1.5s ease-in-out infinite;
}

.sparkle::before,
.sparkle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: var(--white);
    border-radius: 50%;
}

.sparkle::before {
    width: 12px;
    height: 1px;
    transform: translate(-50%, -50%);
}

.sparkle::after {
    width: 1px;
    height: 12px;
    transform: translate(-50%, -50%);
}

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

.sparkle-2 {
    top: 20%;
    right: 20%;
    animation-delay: 0.5s;
}

.sparkle-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 1s;
}

.sparkle-4 {
    bottom: 20%;
    right: 20%;
    animation-delay: 1.5s;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    margin-bottom: var(--spacing-xl);
    position: relative;
    line-height: 1.1;
}

.title-main {
    display: block;
    font-size: clamp(3rem, 8vw, 5rem);
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    animation: titleShimmer 3s ease-in-out infinite;
}

.title-sub {
    display: block;
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--white);
    font-weight: 700;
    text-shadow: 0 0 30px var(--gold-glow);
}

.title-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse, var(--gold-glow) 0%, transparent 70%);
    z-index: -1;
    animation: titleGlowPulse 4s ease-in-out infinite;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--gray-light);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.125rem;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: var(--transition-luxury);
    position: relative;
    overflow: hidden;
    min-width: 200px;
    justify-content: center;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.8s ease;
}

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

.btn-primary {
    background: var(--gold-gradient);
    color: var(--black-primary);
    box-shadow: var(--shadow-gold-glow);
    border-color: var(--gold-bright);
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-gold-strong);
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--gold-bright);
    box-shadow: var(--shadow-luxury-sm);
}

.btn-secondary:hover {
    background: var(--gold-gradient);
    color: var(--black-primary);
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-gold-strong);
}

.btn-diamond,
.btn-crown {
    font-size: 1.25rem;
    animation: iconRotate 2s ease-in-out infinite;
}

/* 服务优势区域 */
.features-section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.title-ornament {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.ornament-line {
    width: 60px;
    height: 2px;
    background: var(--gold-gradient);
}

.ornament-gem {
    font-size: 1.5rem;
    animation: gemSparkle 2s ease-in-out infinite;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-light);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--gray-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-luxury);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(50px);
}

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

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gold-gradient);
    opacity: 0;
    transition: var(--transition-luxury);
}

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

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--gold-dark);
    box-shadow: var(--shadow-luxury-lg), var(--shadow-gold-glow);
}

.feature-icon {
    margin-bottom: var(--spacing-lg);
}

.icon-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--gold-gradient);
    border-radius: 50%;
    margin: 0 auto;
}

.icon-symbol {
    font-size: 2rem;
    filter: sepia(1) saturate(0) brightness(0);
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--gold-glow) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition-glow);
}

.feature-card:hover .icon-glow {
    opacity: 1;
    animation: iconGlowPulse 1.5s ease-in-out infinite;
}

.feature-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--gray-light);
    font-size: 1rem;
    line-height: 1.6;
}

/* 套餐区域样式 */
.packages-section {
    padding: var(--spacing-4xl) 0;
    background: radial-gradient(
        ellipse at center,
        rgba(184, 134, 11, 0.05) 0%,
        transparent 70%
    );
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1300px;
    margin: 0 auto;
}

/* 套餐卡片样式 */
.package-card {
    background: var(--gray-dark);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    transition: var(--transition-luxury);
    border: 2px solid var(--gold-dark);
    overflow: hidden;
    opacity: 0;
    transform: translateY(50px);
}

.package-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.package-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gold-gradient);
    opacity: 0;
    transition: var(--transition-luxury);
}

.package-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 1s ease;
}

.package-card:hover .package-glow {
    opacity: 1;
}

.package-card:hover .package-shine {
    left: 100%;
}

.package-card:hover {
    transform: translateY(-15px);
    border-color: var(--gold-bright);
    box-shadow: var(--shadow-luxury-lg), var(--shadow-gold-strong);
}

/* 热门套餐特殊样式 */
.popular-package {
    border-color: var(--gold-bright);
    box-shadow: var(--shadow-luxury-md), var(--shadow-gold-glow);
    background: linear-gradient(145deg, var(--gray-dark), var(--gray-medium));
}

.popular-crown {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    animation: crownBounce 2s ease-in-out infinite;
    z-index: 10;
}

.popular-badge {
    position: absolute;
    top: -1px;
    right: var(--spacing-lg);
    background: var(--gold-gradient);
    color: var(--black-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 10;
    box-shadow: var(--shadow-gold-glow);
}

.package-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.package-badge {
    display: inline-block;
    background: rgba(255, 215, 0, 0.2);
    color: var(--gold-bright);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.package-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 2rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.package-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: var(--spacing-md);
}

.price-symbol {
    font-size: 1.5rem;
    color: var(--gold-bright);
    font-weight: 600;
}

.price-amount {
    font-family: var(--font-display);
    font-size: clamp(3rem, 5vw, 4rem);
    font-weight: 900;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 1rem;
    color: var(--gray-light);
    font-weight: 500;
}

.package-description {
    color: var(--gray-light);
    font-size: 1rem;
    line-height: 1.6;
}

.package-features {
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-icon-small {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
    filter: sepia(1) saturate(5) hue-rotate(45deg);
}

.feature-details {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.feature-name {
    color: var(--gray-light);
    font-size: 1rem;
    font-weight: 500;
}

.feature-value {
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
}

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

.package-btn {
    display: inline-block;
    width: 100%;
    padding: var(--spacing-md);
    background: var(--gold-gradient);
    color: var(--black-primary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition-luxury);
    box-shadow: var(--shadow-luxury-sm);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.package-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold-strong);
}

.featured-btn {
    background: linear-gradient(135deg, var(--gold-bright), var(--gold-dark));
    box-shadow: var(--shadow-gold-glow);
}

/* 友情链接区域样式 */
.links-section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.link-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--gray-dark);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-luxury);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.link-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.link-item:hover {
    transform: translateY(-5px);
    border-color: var(--gold-dark);
    box-shadow: var(--shadow-luxury-md), var(--shadow-gold-glow);
}

.link-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gold-gradient);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.link-icon-img {
    width: 28px;
    height: 28px;
    filter: brightness(0);
}

.icon-placeholder {
    font-size: 1.75rem;
    filter: brightness(0);
}

.icon-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.link-item:hover .icon-shine {
    left: 100%;
}

.link-content {
    flex: 1;
}

.link-title {
    font-weight: 600;
    color: var(--white);
    margin-bottom: 4px;
    font-size: 1.125rem;
}

.link-url {
    color: var(--gold-bright);
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition-smooth);
    position: relative;
}

.link-url::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: var(--transition-smooth);
}

.link-url:hover {
    color: var(--white);
    text-shadow: 0 0 10px var(--gold-glow);
}

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

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, var(--black-primary), var(--gray-dark));
    border-top: 3px solid var(--gold-gradient);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
}

.footer-luxury-line {
    width: 200px;
    height: 2px;
    background: var(--gold-gradient);
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 0 20px var(--gold-glow);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.copyright {
    color: var(--gray-light);
    font-size: 1rem;
    font-weight: 300;
}

.timestamp {
    color: var(--white);
    font-size: 1rem;
    font-weight: 500;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-decorations {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    font-size: 1.5rem;
}

.footer-gem,
.footer-crown {
    animation: footerSparkle 3s ease-in-out infinite;
}

.footer-crown {
    animation-delay: 1.5s;
}

/* 动画关键帧 */
@keyframes particleFloat {
    0% {
        transform: translateY(-5vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(105vh) rotate(360deg);
        opacity: 0;
    }
}

@keyframes starTwinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

@keyframes radiateGlow {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes logoGlow {
    0%, 100% {
        filter: brightness(0) invert(1) sepia(1) saturate(10000%) hue-rotate(45deg) drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
    }
    50% {
        filter: brightness(0) invert(1) sepia(1) saturate(10000%) hue-rotate(45deg) drop-shadow(0 0 20px rgba(255, 215, 0, 0.8));
    }
}

@keyframes heroFadeIn {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes crownFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
    }
}

@keyframes auraPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes sparkleGlow {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.3);
    }
}

@keyframes titleShimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes titleGlowPulse {
    0%, 100% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes iconRotate {
    0%, 100% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(10deg) scale(1.1);
    }
}

@keyframes gemSparkle {
    0%, 100% {
        transform: scale(1) rotate(0deg);
    }
    50% {
        transform: scale(1.2) rotate(180deg);
    }
}

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

@keyframes crownBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0px);
    }
    50% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes footerSparkle {
    0%, 100% {
        transform: scale(1) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.3) rotate(180deg);
        opacity: 1;
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .packages-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 32px;
        --spacing-2xl: 48px;
        --spacing-3xl: 64px;
        --spacing-4xl: 96px;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-2xl);
        gap: var(--spacing-lg);
        transform: translateX(-100%);
        transition: var(--transition-luxury);
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .links-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .link-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .footer-info {
        gap: var(--spacing-md);
    }
    
    .hero-logo {
        width: 120px;
        height: 120px;
    }
    
    .logo-golden-aura {
        width: 160px;
        height: 160px;
    }
    
    .particle {
        display: none;
    }
    
    .starlight {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .package-card {
        padding: var(--spacing-lg);
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
        min-width: 160px;
    }
    
    .hero-logo {
        width: 100px;
        height: 100px;
    }
    
    .logo-golden-aura {
        width: 140px;
        height: 140px;
    }
    
    .crown-jewel {
        width: 40px;
        height: 25px;
    }
    
    .icon-wrapper {
        width: 60px;
        height: 60px;
    }
    
    .icon-symbol {
        font-size: 1.5rem;
    }
}

/* 高分辨率显示器优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1600px;
    }
    
    .packages-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1400px;
    }
    
    .hero-logo {
        width: 180px;
        height: 180px;
    }
    
    .logo-golden-aura {
        width: 240px;
        height: 240px;
    }
}

/* 打印样式 */
@media print {
    .particles-container,
    .starlight-container,
    .radiant-background,
    .navbar {
        display: none;
    }
    
    .main-content {
        margin-top: 0;
    }
    
    * {
        animation: none !important;
        transition: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero-title,
    .section-title,
    .package-title {
        color: #333 !important;
        -webkit-text-fill-color: #333 !important;
    }
    
    .btn,
    .package-btn {
        background: #f0f0f0 !important;
        color: #333 !important;
        box-shadow: none !important;
    }
}

/* 减少动画（用户偏好设置） */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .particles-container,
    .starlight-container,
    .radiant-background {
        display: none;
    }
    
    .btn:hover,
    .package-card:hover,
    .feature-card:hover,
    .link-item:hover {
        transform: none;
    }
}