/* ===== 汗汗漫画 - 全局样式 ===== */
:root {
  --primary: #E63946;
  --primary-dark: #C1121F;
  --primary-light: #FF6B6B;
  --accent: #F1FAEE;
  --gradient: linear-gradient(135deg, #E63946 0%, #C1121F 100%);
  --gradient-hover: linear-gradient(135deg, #FF6B6B 0%, #E63946 100%);
  --bg: #FFFFFF;
  --bg-alt: #F8F9FA;
  --bg-card: #FFFFFF;
  --card: #FFFFFF;
  --text: #1D3557;
  --text-main: #2B2D42;
  --text-light: #6C757D;
  --text-muted: #ADB5BD;
  --border: #E9ECEF;
  --shadow: 0 4px 20px rgba(230, 57, 70, 0.08);
  --shadow-hover: 0 8px 30px rgba(230, 57, 70, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 顶部装饰条 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  z-index: 9999;
}

a {
  text-decoration: none;
  color: inherit;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 4px;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
}

.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-logo span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
  border-radius: 2px;
}

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

.nav-download {
  background: var(--gradient);
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 700 !important;
  box-shadow: 0 4px 15px rgba(230, 57, 70, 0.25);
  transition: var(--transition);
}

.nav-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
}

.nav-download::after {
  display: none !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero区域 ===== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, #FFF5F5 0%, var(--bg) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

/* 浮动装饰 */
.hero-decor {
  position: absolute;
  font-size: 28px;
  opacity: 0.6;
  animation: float-decor 4s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

.hero-decor-1 { top: 22%; left: 6%; animation-delay: 0s; }
.hero-decor-2 { top: 65%; left: 4%; animation-delay: 1s; }
.hero-decor-3 { top: 28%; right: 46%; animation-delay: 2s; }
.hero-decor-4 { bottom: 22%; right: 44%; animation-delay: 0.5s; }

@keyframes float-decor {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
  50% { transform: translateY(-15px) rotate(10deg); opacity: 1; }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-content h1 .highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-light);
  margin-bottom: 20px;
  font-weight: 500;
}

.hero-rating {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.stars {
  color: #FFB703;
  font-size: 18px;
  letter-spacing: 2px;
}

.rating-text {
  font-size: 15px;
  color: var(--text-light);
}

.rating-text strong {
  color: var(--text-main);
  font-size: 18px;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient);
  color: #fff;
  padding: 16px 36px;
  border-radius: 50px;
  font-size: 17px;
  font-weight: 700;
  box-shadow: 0 6px 25px rgba(230, 57, 70, 0.3);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 35px rgba(230, 57, 70, 0.4);
  background: var(--gradient-hover);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--primary);
  padding: 16px 36px;
  border-radius: 50px;
  font-size: 17px;
  font-weight: 700;
  border: 2px solid var(--primary);
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(230, 57, 70, 0.05);
  transform: translateY(-3px);
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-light);
  background: #fff;
  padding: 8px 16px;
  border-radius: 50px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.hero-feature .check {
  color: var(--primary);
  font-weight: bold;
}

/* Hero 截图展示 */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: #fff;
  border-radius: 40px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(230, 57, 70, 0.15);
  border: 3px solid var(--border);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 30px;
  overflow: hidden;
  position: relative;
  background: #f5f5f5;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-float {
  position: absolute;
  background: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  font-size: 14px;
  font-weight: 600;
  animation: float 3s ease-in-out infinite;
  color: var(--primary);
  border: 1px solid var(--border);
}

.phone-float-1 {
  top: 60px;
  left: -30px;
  animation-delay: 0s;
}

.phone-float-2 {
  bottom: 100px;
  right: -30px;
  animation-delay: 1.5s;
}

.phone-float .icon {
  font-size: 20px;
  margin-right: 6px;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: var(--gradient);
  color: #fff;
  padding: 6px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
  color: var(--text);
}

.section-desc {
  font-size: 17px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 核心功能 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: rgba(230, 57, 70, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient);
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== 阅读模式 ===== */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.mode-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.mode-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.mode-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #fff;
}

.mode-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.mode-info p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== 截图展示区 ===== */
.screenshots-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 50%, var(--bg) 100%);
}

.screenshots-wrap {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.screenshot-item {
  width: 220px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(230, 57, 70, 0.1);
  transition: var(--transition);
  border: 3px solid var(--border);
}

.screenshot-item:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 20px 50px rgba(230, 57, 70, 0.2);
  border-color: var(--primary);
}

.screenshot-item img {
  width: 100%;
  height: 440px;
  object-fit: cover;
}

/* ===== 漫画分类 ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.category-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  cursor: pointer;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.category-emoji {
  font-size: 36px;
  flex-shrink: 0;
}

.category-info h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.category-info p {
  font-size: 13px;
  color: var(--text-muted);
}

.hot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.hot-tag {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 14px;
  color: var(--text-light);
  transition: var(--transition);
  cursor: pointer;
}

.hot-tag:hover {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
}

/* ===== 更新日志 ===== */
.timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
  background: var(--card);
  padding: 24px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px;
  top: 28px;
  width: 14px;
  height: 14px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--card);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-version {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.timeline-version .ver {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.timeline-version .date {
  font-size: 14px;
  color: var(--text-muted);
  background: var(--bg-alt);
  padding: 4px 12px;
  border-radius: 50px;
}

.timeline-item p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== 用户评价 ===== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.review-info h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--text);
}

.review-stars {
  color: #FFB703;
  font-size: 14px;
}

.review-text {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item.active {
  border-color: var(--primary);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
  color: var(--text-main);
}

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

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(230, 57, 70, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: bold;
  transition: var(--transition);
  color: var(--primary);
}

.faq-item.active .faq-icon {
  background: var(--gradient);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== 底部CTA ===== */
.cta-section {
  background: var(--gradient);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: rgba(255, 255, 255, 0.08);
  transform: rotate(15deg);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: 40px;
  font-weight: 900;
  margin-bottom: 16px;
  color: #fff;
}

.cta-section p {
  font-size: 18px;
  color: #fff;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--primary-dark);
  padding: 18px 48px;
  border-radius: 50px;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.cta-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ===== 页脚 ===== */
.footer {
  background: #1A1A2E;
  color: var(--text-muted);
  padding: 50px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  margin-bottom: 16px;
}

.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
  color: #8B8BA5;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}

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

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

.footer-col a {
  font-size: 14px;
  color: #8B8BA5;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #8B8BA5;
}

.footer-bottom a {
  color: #B8B8D0;
  transition: var(--transition);
}

.footer-bottom a:hover {
  color: var(--primary-light);
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 968px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .hero-visual {
    order: -1;
    margin-bottom: 40px;
  }

  .hero-buttons, .hero-features {
    justify-content: center;
  }

  .modes-grid, .features-grid, .reviews-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .section-title {
    font-size: 28px;
  }

  .cta-section h2 {
    font-size: 30px;
  }

  .screenshot-item {
    width: 170px;
  }

  .screenshot-item img {
    height: 340px;
  }

  .hero-decor {
    display: none;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-content h1 {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 17px;
  }

  .section {
    padding: 60px 0;
  }

  .categories-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .phone-mockup {
    width: 240px;
    height: 480px;
  }

  .phone-float {
    display: none;
  }

  .mode-card {
    flex-direction: column;
    text-align: center;
  }

  .btn-primary, .btn-secondary {
    padding: 14px 28px;
    font-size: 15px;
  }
}