/* ============================================
   免费看片 - 主样式表
   品牌色彩：紫色 #5B21B6 | 蓝色 #0EA5E9 | 粉红 #EC4899
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Microsoft YaHei', 微软雅黑, sans-serif;
  line-height: 1.6;
  color: #1F2937;
  background-color: #FFFFFF;
  overflow-x: hidden;
}

/* ============================================
   颜色变量与主题
   ============================================ */
:root {
  --primary-purple: #5B21B6;
  --primary-blue: #0EA5E9;
  --primary-pink: #EC4899;
  --dark-gray: #1F2937;
  --light-gray: #F3F4F6;
  --border-gray: #E5E7EB;
  --text-muted: #6B7280;
  --success-green: #10B981;
  --warning-yellow: #F59E0B;
  --danger-red: #EF4444;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
  
  --transition-fast: 150ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 300ms ease-out;
}

/* ============================================
   排版系统
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Source Han Sans', 思源黑体, sans-serif;
  font-weight: 700;
  line-height: 1.3;
  color: var(--dark-gray);
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.875rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--dark-gray);
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-purple);
  text-decoration: underline;
}

/* ============================================
   容器与布局
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.col {
  padding: 0 10px;
}

.col-12 { width: 100%; }
.col-6 { width: 50%; }
.col-4 { width: 33.333%; }
.col-3 { width: 25%; }
.col-2 { width: 16.666%; }

@media (max-width: 768px) {
  .col-6 { width: 100%; }
  .col-4 { width: 50%; }
  .col-3 { width: 100%; }
  .col-2 { width: 50%; }
}

/* ============================================
   导航栏
   ============================================ */
header {
  background: linear-gradient(135deg, var(--primary-purple) 0%, #6D28D9 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: white;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

nav a:hover {
  color: var(--primary-pink);
  text-decoration: none;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-pink), var(--primary-blue));
  transition: width var(--transition-fast);
}

nav a:hover::after {
  width: 100%;
}

/* 搜索框 */
.search-box {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  padding: 0.5rem 1rem;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.search-box:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
}

.search-box input {
  background: transparent;
  border: none;
  color: white;
  outline: none;
  width: 150px;
  font-size: 0.9rem;
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.search-box button {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.search-box button:hover {
  transform: scale(1.1);
}

@media (max-width: 768px) {
  nav ul {
    gap: 1rem;
    font-size: 0.9rem;
  }
  
  .search-box {
    display: none;
  }
}

/* ============================================
   英雄区
   ============================================ */
.hero {
  background: linear-gradient(135deg, rgba(91, 33, 182, 0.9) 0%, rgba(14, 165, 233, 0.9) 100%),
              url('https://d2xsxph8kpxj0f.cloudfront.net/310519663651052426/GkRNQzKPd9u3RrXGBAR7qP/hero-background-CMoWnA9UdgSsoPA6ne8soi.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: white;
  padding: 100px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease-out;
}

.hero h1 {
  font-size: 3.5rem;
  color: white;
  margin-bottom: 1rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 2rem;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  font-size: 1rem;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue) 0%, #0284C7 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: white;
  color: var(--primary-purple);
  border: 2px solid var(--primary-purple);
}

.btn-secondary:hover {
  background: var(--primary-purple);
  color: white;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid white;
}

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

.x0j36il {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.xnpst9c {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ============================================
   卡片样式
   ============================================ */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid var(--border-gray);
}

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

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-gray);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  background: var(--light-gray);
  border-top: 1px solid var(--border-gray);
}

/* ============================================
   视频卡片
   ============================================ */
.video-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: #000;
  overflow: hidden;
}

.video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-normal);
  z-index: 10;
}

.video-card:hover .video-overlay {
  background: rgba(0, 0, 0, 0.4);
}

.play-button {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-pink) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  transform: scale(0.8);
  opacity: 0;
  transition: all var(--transition-normal);
}

.video-card:hover .play-button {
  transform: scale(1);
  opacity: 1;
}

.video-info {
  padding: 1rem;
}

.video-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.video-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.video-stat {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ============================================
   模块与分隔
   ============================================ */
.section {
  padding: 4rem 20px;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-purple), var(--primary-blue), var(--primary-pink));
  margin: 1rem auto 0;
  border-radius: 2px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

/* ============================================
   网格布局
   ============================================ */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   标签与徽章
   ============================================ */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, var(--primary-pink), #DB2777);
  color: white;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--light-gray);
  color: var(--dark-gray);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
}

.xdlz9d5qp {
  background: linear-gradient(135deg, var(--primary-blue), #0284C7);
  color: white;
}

.badge-success {
  background: var(--success-green);
  color: white;
}

/* ============================================
   表单样式
   ============================================ */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-gray);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
  margin-bottom: 1rem;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   页脚
   ============================================ */
footer {
  background: linear-gradient(135deg, var(--primary-purple) 0%, #6D28D9 100%);
  color: white;
  padding: 3rem 20px 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: white;
  margin-bottom: 1rem;
}

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

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--primary-pink);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.8);
}

.qr-codes {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin: 1.5rem 0;
}

.qr-code {
  text-align: center;
}

.qr-code img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  border: 2px solid white;
}

.qr-code p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(14, 165, 233, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.8);
  }
}

.xjdz84s1r {
  animation: fadeInUp 0.6s ease-out;
}

.xn9ve4 {
  animation: fadeIn 0.6s ease-out;
}

.xkmsps7 {
  animation: slideInLeft 0.6s ease-out;
}

.xlign48 {
  animation: slideInRight 0.6s ease-out;
}

/* ============================================
   实用类
   ============================================ */
.text-center {
  text-align: center;
}

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

.text-right {
  text-align: right;
}

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

.text-primary {
  color: var(--primary-purple);
}

.text-blue {
  color: var(--primary-blue);
}

.text-pink {
  color: var(--primary-pink);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.hidden {
  display: none;
}

.visible {
  display: block;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .hero {
    padding: 60px 20px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section {
    padding: 2rem 20px;
  }
  
  .section-title h2 {
    font-size: 1.75rem;
  }
  
  nav ul {
    gap: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  
  .hero {
    padding: 40px 15px;
  }
  
  .hero h1 {
    font-size: 1.5rem;
  }
  
  .hero p {
    font-size: 0.95rem;
  }
  
  .section {
    padding: 1.5rem 15px;
  }
  
  nav ul {
    gap: 0.5rem;
    font-size: 0.85rem;
  }
}