/* ============================================
   吃瓜社 (Gossip Club) - 主样式表
   设计风格: 报纸/小报 (Newspaper/Tabloid)
   CSS前缀: gc-
   ============================================ */

/* === 基础重置与变量 === */
:root {
  --gc-white: #FFFFFF;
  --gc-black: #000000;
  --gc-red: #FF0000;
  --gc-dark-red: #CC0000;
  --gc-text: #333333;
  --gc-link: #0000FF;
  --gc-light-gray: #F5F5F5;
  --gc-border: #DDDDDD;
  --gc-yellow: #FFF8DC;
  --gc-paper: #FAF0E6;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Songti SC', 'STSong', 'SimSun', serif;
  color: var(--gc-text);
  background-color: var(--gc-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* === 干扰标签隐藏 === */
.tabloid-jammer-block {
  display: none;
}

/* === 油墨印刷加载动画 === */
.gc-ink-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gc-black);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease;
}

.gc-ink-overlay.gc-fade-out {
  opacity: 0;
  pointer-events: none;
}

.gc-ink-text {
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  color: var(--gc-white);
  letter-spacing: 0.3em;
  animation: gc-ink-stamp 1.2s ease forwards;
}

@keyframes gc-ink-stamp {
  0% { opacity: 0; transform: scale(3) rotate(-5deg); filter: blur(10px); }
  50% { opacity: 1; transform: scale(1.1) rotate(0deg); filter: blur(0); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* === 通用排版 === */
.gc-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-weight: 900;
  line-height: 1.3;
  color: var(--gc-black);
}

a {
  color: var(--gc-link);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--gc-red);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === 导航栏 === */
#gc-header {
  background: var(--gc-white);
  border-bottom: 4px double var(--gc-black);
  padding: 0;
  z-index: 100;
}

.gc-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  max-width: 1440px;
  margin: 0 auto;
  border-bottom: 1px solid var(--gc-border);
}

.gc-logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gc-logo-img {
  width: 50px;
  height: auto;
}

.gc-site-name {
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--gc-black);
  letter-spacing: 0.1em;
}

.gc-site-name span {
  color: var(--gc-red);
}

.gc-date-line {
  font-size: 0.85rem;
  color: #666;
  font-style: italic;
}

.gc-nav {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px;
}

.gc-nav-list {
  list-style: none;
  display: flex;
  gap: 0;
  justify-content: center;
  flex-wrap: wrap;
}

.gc-nav-item {
  position: relative;
}

.gc-nav-link {
  display: block;
  padding: 12px 24px;
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--gc-black);
  text-decoration: none;
  transition: color 0.3s ease;
  position: relative;
}

.gc-nav-link::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 24px;
  right: 24px;
  height: 2px;
  background: var(--gc-red);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.gc-nav-link:hover {
  color: var(--gc-red);
  text-decoration: none;
}

.gc-nav-link:hover::after {
  transform: scaleX(1);
}

.gc-nav-link.gc-nav-hot {
  color: var(--gc-red);
}

/* 汉堡菜单 */
.gc-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 200;
}

.gc-hamburger-line {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--gc-black);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.gc-mobile-menu {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0,0,0,0.95);
  z-index: 150;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.gc-mobile-menu.gc-menu-open {
  transform: translateY(0);
}

.gc-mobile-menu a {
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gc-white);
  text-decoration: none;
  padding: 15px 30px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.gc-mobile-menu a:hover {
  color: var(--gc-red);
}

/* === 头版头条模块 === */
#gc-top-story {
  background: var(--gc-white);
  padding: 40px 0;
  border-bottom: 3px solid var(--gc-black);
  position: relative;
  overflow: hidden;
}

#gc-top-story::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, #ccc 1px, transparent 1px);
  background-size: 4px 4px;
  opacity: 0.15;
  pointer-events: none;
}

.gc-headline-badge {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 0.9rem;
  font-weight: 900;
  padding: 4px 16px;
  margin-bottom: 15px;
  letter-spacing: 0.2em;
  animation: gc-flash 1.5s infinite;
}

@keyframes gc-flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.gc-headline-title {
  font-size: 2.8rem;
  font-style: italic;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--gc-black);
  text-shadow: 2px 2px 0 rgba(0,0,0,0.05);
}

.gc-headline-img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border: 3px solid var(--gc-black);
  margin: 20px 0;
  filter: contrast(1.1) grayscale(0.1);
}

.gc-headline-excerpt {
  font-size: 1.15rem;
  line-height: 2;
  column-count: 2;
  column-gap: 40px;
  column-rule: 1px solid var(--gc-border);
}

.gc-headline-meta {
  margin-top: 15px;
  font-size: 0.85rem;
  color: #888;
  border-top: 1px dashed var(--gc-border);
  padding-top: 10px;
}

/* === 爆料投稿模块 === */
#gc-submit-tip {
  background: var(--gc-black);
  color: var(--gc-white);
  padding: 60px 0;
  position: relative;
}

.gc-tip-inner {
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
}

.gc-tip-image {
  flex: 0 0 40%;
  max-width: 400px;
}

.gc-tip-image img {
  width: 100%;
  border: 2px solid var(--gc-red);
  border-radius: 4px;
}

.gc-tip-form-area {
  flex: 1;
  min-width: 280px;
}

.gc-tip-title {
  font-size: 2rem;
  color: var(--gc-red);
  margin-bottom: 10px;
}

.gc-tip-subtitle {
  font-size: 1.1rem;
  color: #ccc;
  margin-bottom: 25px;
  line-height: 1.8;
}

.gc-form-group {
  margin-bottom: 15px;
}

.gc-form-input,
.gc-form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.1);
  border: 2px solid var(--gc-red);
  color: var(--gc-white);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.3s;
}

.gc-form-input:focus,
.gc-form-textarea:focus {
  border-color: var(--gc-white);
}

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

.gc-form-input::placeholder,
.gc-form-textarea::placeholder {
  color: #888;
}

.gc-btn-submit {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  padding: 14px 40px;
  border: none;
  cursor: pointer;
  letter-spacing: 0.1em;
  transition: background 0.3s;
}

.gc-btn-submit:hover {
  background: var(--gc-dark-red);
}

/* === 热搜榜模块 === */
#gc-hot-topics {
  background: var(--gc-black);
  padding: 50px 0;
  border-top: 3px solid var(--gc-red);
  border-bottom: 3px solid var(--gc-red);
}

.gc-hot-header {
  text-align: center;
  margin-bottom: 30px;
}

.gc-hot-header h2 {
  color: var(--gc-red);
  font-size: 2rem;
  letter-spacing: 0.2em;
}

.gc-hot-header p {
  color: #aaa;
  margin-top: 8px;
}

.gc-hot-list {
  list-style: none;
  max-width: 800px;
  margin: 0 auto;
}

.gc-hot-item {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: background 0.3s;
  cursor: pointer;
}

.gc-hot-item:hover {
  background: rgba(255,0,0,0.1);
}

.gc-hot-rank {
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  width: 50px;
  text-align: center;
  color: var(--gc-red);
}

.gc-hot-rank.gc-rank-top {
  color: var(--gc-red);
  font-size: 1.8rem;
}

.gc-hot-rank.gc-rank-normal {
  color: #888;
}

.gc-hot-text {
  flex: 1;
  color: var(--gc-white);
  font-size: 1.05rem;
  padding: 0 15px;
}

.gc-hot-heat {
  font-size: 0.85rem;
  color: var(--gc-red);
  font-weight: 700;
  white-space: nowrap;
}

.gc-hot-badge {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  font-size: 0.7rem;
  padding: 2px 8px;
  margin-left: 8px;
  font-weight: 700;
}

/* === 吃瓜评论模块 === */
#gc-commentary {
  padding: 60px 0;
  background: var(--gc-paper);
  border-bottom: 2px solid var(--gc-border);
}

.gc-commentary-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.gc-commentary-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background: var(--gc-red);
  margin: 10px auto 0;
}

.gc-comment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
}

.gc-comment-card {
  background: var(--gc-white);
  border: 1px solid var(--gc-border);
  padding: 25px;
  position: relative;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.1);
  transform: rotate(-0.5deg);
  transition: transform 0.3s;
}

.gc-comment-card:nth-child(even) {
  transform: rotate(0.5deg);
}

.gc-comment-card:hover {
  transform: rotate(0deg) scale(1.02);
}

.gc-comment-card::before {
  content: '\201C';
  position: absolute;
  top: -10px;
  left: 15px;
  font-size: 4rem;
  color: var(--gc-red);
  opacity: 0.3;
  font-family: serif;
}

.gc-comment-text {
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 15px;
}

.gc-comment-author {
  font-size: 0.85rem;
  color: #888;
  text-align: right;
  font-style: italic;
}

/* === 深度调查模块 === */
#gc-investigation {
  padding: 60px 0;
  background: var(--gc-white);
  border-bottom: 3px solid var(--gc-black);
}

.gc-invest-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 40px;
}

.gc-invest-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gc-red);
  margin: 10px auto 0;
}

.gc-invest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.gc-invest-card {
  border: 2px solid var(--gc-black);
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.gc-invest-card:hover {
  box-shadow: 5px 5px 0 var(--gc-red);
}

.gc-invest-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  filter: grayscale(0.3) contrast(1.1);
  transition: filter 0.3s;
}

.gc-invest-card:hover img {
  filter: grayscale(0) contrast(1);
}

.gc-invest-card-body {
  padding: 20px;
}

.gc-invest-card-tag {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  font-size: 0.75rem;
  padding: 3px 10px;
  font-weight: 700;
  margin-bottom: 10px;
}

.gc-invest-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.gc-invest-card p {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.8;
}

/* === 线人奖励模块 === */
#gc-rewards {
  padding: 60px 0;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d1a1a 100%);
  color: var(--gc-white);
  text-align: center;
}

.gc-reward-inner {
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.gc-reward-poster {
  flex: 0 0 300px;
  max-width: 300px;
}

.gc-reward-poster img {
  width: 100%;
  border: 3px solid var(--gc-red);
  box-shadow: 0 0 30px rgba(255,0,0,0.3);
}

.gc-reward-content {
  flex: 1;
  min-width: 280px;
  text-align: left;
}

.gc-reward-content h2 {
  font-size: 2.2rem;
  color: var(--gc-red);
  margin-bottom: 15px;
}

.gc-reward-content p {
  font-size: 1.1rem;
  line-height: 2;
  color: #ccc;
  margin-bottom: 20px;
}

.gc-reward-list {
  list-style: none;
  margin-bottom: 25px;
}

.gc-reward-list li {
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.2);
  font-size: 1rem;
  color: #ddd;
}

.gc-reward-list li::before {
  content: '\1F4B0 ';
}

/* === 订阅报纸模块 === */
#gc-subscribe {
  padding: 60px 0;
  background-color: var(--gc-paper);
  background-image: url('../images/newspaper-subscribe.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}

#gc-subscribe::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(250,240,230,0.92);
}

.gc-subscribe-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.gc-subscribe-inner h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.gc-subscribe-inner p {
  font-size: 1.05rem;
  margin-bottom: 25px;
  color: #555;
}

.gc-subscribe-form {
  display: flex;
  gap: 0;
  max-width: 500px;
  margin: 0 auto;
}

.gc-subscribe-email {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid var(--gc-black);
  border-right: none;
  font-size: 1rem;
  font-family: 'Songti SC', serif;
  outline: none;
}

.gc-subscribe-btn {
  background: var(--gc-red);
  color: var(--gc-white);
  border: 2px solid var(--gc-red);
  padding: 14px 30px;
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-weight: 900;
  font-size: 1rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.3s;
}

.gc-subscribe-btn:hover {
  background: var(--gc-dark-red);
}

/* === 广告刊登模块 === */
#gc-advertising {
  padding: 50px 0;
  background: var(--gc-light-gray);
  border-top: 2px solid var(--gc-border);
  border-bottom: 2px solid var(--gc-border);
}

.gc-ad-inner {
  text-align: center;
}

.gc-ad-inner h2 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.gc-ad-inner p {
  max-width: 700px;
  margin: 0 auto 25px;
  color: #555;
  line-height: 1.8;
}

.gc-ad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.gc-ad-box {
  background: var(--gc-white);
  border: 2px solid var(--gc-black);
  padding: 25px 15px;
  text-align: center;
  transition: box-shadow 0.3s;
}

.gc-ad-box:hover {
  box-shadow: 4px 4px 0 var(--gc-red);
}

.gc-ad-box h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.gc-ad-box .gc-price {
  font-size: 1.5rem;
  color: var(--gc-red);
  font-weight: 900;
}

.gc-ad-box p {
  font-size: 0.85rem;
  color: #888;
  margin-top: 5px;
}

/* === APP下载模块 === */
#gc-app-download {
  padding: 60px 0;
  background: var(--gc-black);
  color: var(--gc-white);
  text-align: center;
}

.gc-app-inner h2 {
  font-size: 2rem;
  color: var(--gc-white);
  margin-bottom: 10px;
}

.gc-app-inner p {
  color: #aaa;
  margin-bottom: 25px;
  font-size: 1.05rem;
}

.gc-app-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.gc-app-btn {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  padding: 14px 35px;
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.3s;
}

.gc-app-btn:hover {
  background: var(--gc-dark-red);
  color: var(--gc-white);
  text-decoration: none;
}

/* === 编辑部声明模块 === */
#gc-editor-statement {
  padding: 30px 0;
  background: var(--gc-light-gray);
  border-top: 1px solid var(--gc-border);
}

.gc-statement-text {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  font-size: 0.85rem;
  color: #888;
  line-height: 1.8;
  font-family: 'Songti SC', serif;
}

/* === 页脚 === */
#gc-footer {
  background: var(--gc-black);
  color: #ccc;
  padding: 50px 0 20px;
}

.gc-footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.gc-footer-col h3 {
  color: var(--gc-white);
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gc-red);
}

.gc-footer-col ul {
  list-style: none;
}

.gc-footer-col li {
  margin-bottom: 10px;
}

.gc-footer-col a {
  color: #aaa;
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.3s;
}

.gc-footer-col a:hover {
  color: var(--gc-red);
}

.gc-social-links {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
}

.gc-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid #555;
  color: #aaa;
  font-size: 0.8rem;
  text-decoration: none;
  transition: all 0.3s;
}

.gc-social-link:hover {
  border-color: var(--gc-red);
  color: var(--gc-red);
}

.gc-footer-bottom {
  text-align: center;
  padding: 20px;
  margin-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  color: #666;
}

.gc-footer-bottom p {
  margin-bottom: 5px;
}

.gc-geja-badge {
  display: inline-block;
  border: 1px solid #555;
  padding: 5px 15px;
  margin-bottom: 10px;
  font-size: 0.75rem;
  color: #888;
  letter-spacing: 0.1em;
}

/* === 内页通用样式 === */
.gc-page-hero {
  background: var(--gc-black);
  color: var(--gc-white);
  padding: 60px 0;
  text-align: center;
  border-bottom: 4px solid var(--gc-red);
}

.gc-page-hero h1 {
  font-size: 2.5rem;
  color: var(--gc-white);
  margin-bottom: 10px;
}

.gc-page-hero p {
  color: #aaa;
  font-size: 1.1rem;
}

.gc-page-content {
  padding: 50px 0;
}

.gc-article-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.gc-article-card {
  border: 2px solid var(--gc-black);
  overflow: hidden;
  background: var(--gc-white);
  transition: box-shadow 0.3s, transform 0.3s;
}

.gc-article-card:hover {
  box-shadow: 5px 5px 0 var(--gc-red);
  transform: translateY(-3px);
}

.gc-article-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.gc-article-card-body {
  padding: 20px;
}

.gc-article-card-tag {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  font-size: 0.75rem;
  padding: 2px 10px;
  font-weight: 700;
  margin-bottom: 8px;
}

.gc-article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.gc-article-card p {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.7;
}

.gc-article-card-meta {
  margin-top: 12px;
  font-size: 0.8rem;
  color: #999;
  padding-top: 10px;
  border-top: 1px dashed var(--gc-border);
}

/* === 文章详情页 === */
.gc-article-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.gc-article-detail h1 {
  font-size: 2.2rem;
  margin-bottom: 15px;
  font-style: italic;
}

.gc-article-detail-meta {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--gc-black);
}

.gc-article-detail-img {
  width: 100%;
  margin: 25px 0;
  border: 2px solid var(--gc-black);
}

.gc-article-detail p {
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 20px;
  text-indent: 2em;
}

.gc-article-detail blockquote {
  border-left: 4px solid var(--gc-red);
  padding: 15px 20px;
  margin: 25px 0;
  background: var(--gc-light-gray);
  font-style: italic;
}

/* === APP下载页 === */
.gc-app-page {
  min-height: 100vh;
  background: var(--gc-black);
  color: var(--gc-white);
  position: relative;
  overflow: hidden;
}

.gc-app-page-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.gc-app-page-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 60px 20px;
  text-align: center;
}

.gc-app-page-content h1 {
  font-size: 3rem;
  color: var(--gc-white);
  margin-bottom: 15px;
}

.gc-app-page-content .gc-app-subtitle {
  font-size: 1.3rem;
  color: #aaa;
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.gc-app-download-btns {
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
  justify-content: center;
}

.gc-app-store-btn {
  display: inline-block;
  background: var(--gc-red);
  color: var(--gc-white);
  padding: 18px 45px;
  font-size: 1.2rem;
  font-family: 'Heiti SC', 'Microsoft YaHei', sans-serif;
  font-weight: 900;
  text-decoration: none;
  transition: all 0.3s;
  border: 2px solid var(--gc-red);
}

.gc-app-store-btn:hover {
  background: transparent;
  color: var(--gc-red);
  text-decoration: none;
}

.gc-app-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  max-width: 800px;
  margin-top: 50px;
}

.gc-app-feature {
  text-align: center;
}

.gc-app-feature h3 {
  color: var(--gc-red);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.gc-app-feature p {
  color: #aaa;
  font-size: 0.9rem;
}

/* === 响应式断点 === */

/* 1440px */
@media (max-width: 1440px) {
  .gc-container {
    max-width: 1200px;
  }
}

/* 1024px */
@media (max-width: 1024px) {
  .gc-headline-title {
    font-size: 2.2rem;
  }
  .gc-headline-excerpt {
    column-count: 1;
  }
  .gc-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px - 平板 */
@media (max-width: 768px) {
  .gc-nav {
    display: none;
  }
  .gc-hamburger {
    display: block;
  }
  .gc-mobile-menu {
    display: flex;
  }
  .gc-headline-title {
    font-size: 1.8rem;
  }
  .gc-tip-inner {
    flex-direction: column;
  }
  .gc-tip-image {
    flex: none;
    max-width: 100%;
  }
  .gc-reward-inner {
    flex-direction: column;
  }
  .gc-reward-poster {
    flex: none;
  }
  .gc-invest-grid {
    grid-template-columns: 1fr;
  }
  .gc-article-list {
    grid-template-columns: 1fr;
  }
  .gc-footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .gc-subscribe-form {
    flex-direction: column;
  }
  .gc-subscribe-email {
    border-right: 2px solid var(--gc-black);
  }
  .gc-app-page-content h1 {
    font-size: 2rem;
  }
  .gc-page-hero h1 {
    font-size: 1.8rem;
  }
}

/* 360px - 手机 */
@media (max-width: 360px) {
  html {
    font-size: 14px;
  }
  .gc-headline-title {
    font-size: 1.5rem;
  }
  .gc-site-name {
    font-size: 1.3rem;
  }
  .gc-comment-grid {
    grid-template-columns: 1fr;
  }
  .gc-ad-grid {
    grid-template-columns: 1fr;
  }
}

/* === 打印样式 === */
@media print {
  #gc-header, #gc-footer, .gc-hamburger, .gc-mobile-menu {
    display: none;
  }
  body {
    color: #000;
    background: #fff;
  }
}