:root {
  --primary: #059669;
  --accent: #14b8a6;
  --bg: #f0fdfa;
  --text: #134e4a;
  --text-light: #5d8a86;
  --border: #d1fae5;
  --shadow: 0 2px 12px rgba(5, 150, 105, 0.08);
  --shadow-hover: 0 6px 24px rgba(5, 150, 105, 0.14);
  --radius: 8px;
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', '思源宋体', 'Songti SC', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'Source Han Sans SC', '思源黑体', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

/* ========== 滚动进度条 ========== */
.progress-bar-top {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 9999;
  border-radius: 0 3px 3px 0;
  transition: width 0.1s linear;
}

/* ========== 导航 ========== */
.navbar-custom {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-brand {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary) !important;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-brand i {
  color: var(--accent);
  font-size: 1.4rem;
}

.nav-link {
  color: var(--text) !important;
  font-weight: 500;
  margin: 0 0.25rem;
  padding: 0.4rem 0.9rem !important;
  border-radius: var(--radius);
  transition: all 0.25s;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--primary) !important;
  background: rgba(5, 150, 105, 0.08);
}

.navbar-toggler {
  border: none;
  font-size: 1.2rem;
  color: var(--primary);
  padding: 4px 8px;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background-image: url('{随机图片}');
  background-size: cover;
  background-position: center;
  padding: 80px 20px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.72) 0%, rgba(19, 78, 74, 0.68) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: #ffffff;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: rgba(20, 184, 166, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 0.35rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
  font-weight: 500;
  backdrop-filter: blur(6px);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
  color: #ffffff;
}

.hero h1 .brand-highlight {
  color: #6ee7b7;
}

.hero p {
  font-size: 1.15rem;
  opacity: 0.92;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.btn-hero {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  border: none;
  padding: 0.8rem 2.2rem;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  transition: all 0.35s;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.35);
  text-decoration: none;
  display: inline-block;
}

.btn-hero::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 0.5s;
}

.btn-hero:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(5, 150, 105, 0.4);
  color: #ffffff;
}

.btn-hero:hover::before {
  left: 100%;
}

/* ========== 通用区块样式 ========== */
.section {
  padding: 4.5rem 0;
}

.section-label {
  display: inline-block;
  background: rgba(5, 150, 105, 0.1);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.25rem 1rem;
  border-radius: 50px;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 650px;
}

.divider-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  margin: 0.5rem 0 1.5rem;
}

/* ========== 使用说明 ========== */
.steps-section {
  background: #ffffff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.step-card {
  padding: 1.8rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: transform 0.25s, box-shadow 0.25s;
  height: 100%;
}

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

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.step-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin: 0;
}

/* ========== 特色网格 ========== */
.feature-grid .col-lg-4 {
  margin-bottom: 1.5rem;
}

.feature-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  height: 100%;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

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

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(5, 150, 105, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: rgba(5, 150, 105, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 1.2rem;
  transition: all 0.3s;
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.08);
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin: 0;
}

/* ========== 长文区块 ========== */
.long-article {
  background: #ffffff;
}

.article-content {
  max-width: 780px;
}

.article-content h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.article-content h3 {
  font-size: 1.3rem;
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  color: var(--text);
}

.article-content p {
  font-size: 1rem;
  color: var(--text);
  opacity: 0.88;
  margin-bottom: 1.2rem;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(5, 150, 105, 0.05);
  padding: 1rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  color: var(--text);
  font-style: italic;
}

.stat-highlight {
  display: inline-block;
  background: rgba(5, 150, 105, 0.1);
  color: var(--primary);
  font-weight: 700;
  padding: 0.2rem 0.8rem;
  border-radius: 6px;
  font-size: 1.1rem;
  margin: 0.2rem 0.4rem;
}

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

.accordion-item {
  border: 1px solid var(--border) !important;
  margin-bottom: 0.75rem;
  border-radius: var(--radius) !important;
  overflow: hidden;
  background: #ffffff;
}

.accordion-button {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--text);
  background: #ffffff;
  padding: 1.1rem 1.5rem;
  font-size: 1rem;
  border: none;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary) !important;
  background: rgba(5, 150, 105, 0.05);
}

.accordion-button::after {
  color: var(--primary);
}

.accordion-body {
  color: var(--text-light);
  font-size: 0.95rem;
  padding: 1.2rem 1.5rem;
  border-top: 1px solid var(--border);
  background: #fafdfc;
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(135deg, #059669 0%, #14b8a6 100%);
  color: #ffffff;
  padding: 4.5rem 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.92;
  max-width: 560px;
  margin: 0 auto 2rem;
}

.btn-cta {
  background: #ffffff;
  color: var(--primary);
  font-weight: 700;
  padding: 0.85rem 2.5rem;
  border-radius: var(--radius);
  border: none;
  font-size: 1.05rem;
  transition: all 0.35s;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(5, 150, 105, 0.1), transparent);
  transition: left 0.5s;
}

.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  color: var(--primary);
}

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

/* ========== 友情链接 ========== */
.friend-links {
  background: #ffffff;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.friend-links h4 {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 1rem;
  font-family: var(--font-sans);
  font-weight: 600;
}

/* ========== 页脚 ========== */
.footer {
  background: #0f3d38;
  color: #a7f3d0;
  padding: 2.5rem 0 1.5rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand i {
  color: #6ee7b7;
}

.footer-links a {
  color: #a7f3d0;
  text-decoration: none;
  margin: 0 0.8rem;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #ffffff;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 1.8rem;
  padding-top: 1.2rem;
  font-size: 0.85rem;
  color: rgba(167, 243, 208, 0.7);
}

/* ========== 图片懒加载渐显 ========== */
.lazy-img {
  opacity: 0;
  transition: opacity 0.5s ease;
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
}

.lazy-img.loaded {
  opacity: 1;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .hero {
    min-height: 400px;
    padding: 60px 20px;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .section {
    padding: 3rem 0;
  }
  .section-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 576px) {
  .navbar-brand {
    font-size: 1.3rem;
  }
  .hero h1 {
    font-size: 1.7rem;
  }
  .footer-links a {
    margin: 0 0.4rem;
    font-size: 0.8rem;
  }
}

/* --- 子页面追加 --- */
/* 关于页专属样式 */
    .about-hero { padding: 4rem 0 2rem; text-align: center; }
.about-hero h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 1rem; color: var(--text); }
.about-hero p.lead { font-size: 1.05rem; color: var(--text-light); max-width: 720px; margin: 0 auto 1.5rem; }
.about-section { padding: 2.5rem 0; }
.about-section .section-label { margin-bottom: 0.5rem; }
.about-section h2 { font-size: 1.6rem; font-weight: 700; color: var(--text); margin-bottom: 1.2rem; }
.about-section p { color: var(--text-light); line-height: 1.9; margin-bottom: 1rem; }
.about-section p strong { color: var(--text); font-weight: 600; }
.about-card { background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; margin-bottom: 1.5rem; box-shadow: var(--shadow); transition: box-shadow .3s ease; }
.about-card:hover { box-shadow: var(--shadow-hover); }
.about-card .icon { font-size: 2rem; color: var(--primary); margin-bottom: 1rem; }
.about-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--text); margin-bottom: 0.8rem; }
.about-card p { font-size: 0.95rem; color: var(--text-light); line-height: 1.8; margin-bottom: 0; }
.stat-row { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: center; margin: 2rem 0; }
.stat-item { background: #ffffff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem 2rem; text-align: center; box-shadow: var(--shadow); min-width: 140px; }
.stat-item .num { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.stat-item .label { font-size: 0.85rem; color: var(--text-light); margin-top: 0.3rem; }
.timeline { position: relative; padding-left: 1.8rem; margin: 1.5rem 0; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 4px; bottom: 4px; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 1.5rem; }
.timeline-item::before { content: ''; position: absolute; left: -1.8rem; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); border: 2px solid #fff; box-shadow: 0 0 0 2px var(--primary); }
.timeline-item .year { font-weight: 700; color: var(--primary); font-size: 0.95rem; }
.timeline-item .desc { color: var(--text-light); font-size: 0.95rem; line-height: 1.7; margin-top: 0.3rem; }
.value-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.value-list li { display: flex; gap: 0.8rem; align-items: flex-start; margin-bottom: 0.8rem; color: var(--text-light); font-size: 0.95rem; line-height: 1.7; }
.value-list li i { color: var(--primary); margin-top: 0.2rem; }
.cta-box { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); border-radius: var(--radius); padding: 2.5rem 2rem; text-align: center; color: #fff; margin: 2rem 0 1rem; }
.cta-box h3 { color: #fff; font-weight: 700; font-size: 1.4rem; margin-bottom: 0.8rem; }
.cta-box p { color: rgba(255,255,255,.9); font-size: 0.95rem; margin-bottom: 1.5rem; }

/* --- 子页面追加 --- */
/* 本页专属少量样式 */
    .disclaimer-content { max-width: 900px; margin: 0 auto; }
.disclaimer-content h2 { margin-top: 2.5rem; margin-bottom: 1rem; }
.disclaimer-content p { line-height: 1.8; margin-bottom: 1.2rem; }
.disclaimer-content ul { margin-bottom: 1.5rem; padding-left: 1.5rem; }
.disclaimer-content li { margin-bottom: 0.6rem; line-height: 1.7; }
.disclaimer-box { background: rgba(255,255,255,0.7); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem 2rem; margin-bottom: 2rem; box-shadow: var(--shadow); }
.disclaimer-box strong { color: var(--primary); }
.last-updated { color: var(--text-light); font-size: 0.9rem; margin-top: 0.5rem; }
.highlight-tag { display: inline-block; background: rgba(5,150,105,0.1); color: var(--primary); padding: 0.2rem 0.8rem; border-radius: 20px; font-size: 0.85rem; font-weight: 500; margin-bottom: 1rem; }

/* --- 子页面追加 --- */
/* 阅读指南页专属微调样式 */
        .guide-hero { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); }
.guide-hero .hero-badge { background: rgba(255,255,255,.2); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.guide-hero .hero-content h1 { color: #fff; }
.guide-hero .hero-content p { color: rgba(255,255,255,.9); }
.guide-hero .btn-hero { background: #fff; color: var(--primary); }
.guide-hero .btn-hero:hover { background: var(--bg); }
.guide-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow); transition: all .3s ease; height: 100%; }
.guide-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.guide-card .card-icon { width: 56px; height: 56px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: var(--primary); margin-bottom: 1.2rem; }
.guide-card h3 { color: var(--text); font-weight: 700; font-size: 1.1rem; margin-bottom: .8rem; }
.guide-card p { color: var(--text-light); font-size: .92rem; line-height: 1.7; margin-bottom: 0; }
.step-guide { position: relative; padding-left: 3rem; margin-bottom: 2rem; }
.step-guide::before { content: ''; position: absolute; left: 1rem; top: 2.2rem; bottom: -1rem; width: 2px; background: var(--border); }
.step-guide:last-child::before { display: none; }
.step-guide .step-num { position: absolute; left: 0; top: 0; width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .9rem; }
.step-guide h4 { color: var(--text); font-weight: 700; font-size: 1rem; margin-bottom: .5rem; }
.step-guide p { color: var(--text-light); font-size: .92rem; line-height: 1.7; margin-bottom: .5rem; }
.step-guide .step-tip { display: inline-block; background: var(--bg); color: var(--primary); border-radius: 4px; padding: .2rem .6rem; font-size: .8rem; font-weight: 600; }
.device-tab { border: 1px solid var(--border); border-radius: var(--radius); padding: .6rem 1.2rem; font-size: .9rem; color: var(--text-light); cursor: pointer; transition: all .3s ease; background: transparent; }
.device-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.device-tab:hover { border-color: var(--primary); color: var(--primary); }
.device-tab.active:hover { color: #fff; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1rem; }
.faq-item h4 { color: var(--text); font-weight: 700; font-size: .98rem; margin-bottom: .6rem; }
.faq-item p { color: var(--text-light); font-size: .9rem; line-height: 1.7; margin-bottom: 0; }
.tips-list { list-style: none; padding: 0; margin: 0; }
.tips-list li { position: relative; padding-left: 1.8rem; margin-bottom: .8rem; color: var(--text-light); font-size: .92rem; line-height: 1.7; }
.tips-list li::before { content: '\f0da'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: .1rem; color: var(--primary); font-size: .9rem; }
.table-guide { width: 100%; border-collapse: collapse; }
.table-guide th, .table-guide td { padding: .8rem 1rem; text-align: left; border-bottom: 1px solid var(--border); font-size: .9rem; }
.table-guide th { background: var(--bg); color: var(--text); font-weight: 700; }
.table-guide td { color: var(--text-light); }
.table-guide tr:last-child td { border-bottom: none; }
.btn-guide { display: inline-block; padding: .7rem 1.8rem; border-radius: var(--radius); font-weight: 600; font-size: .9rem; transition: all .3s ease; text-decoration: none; }
.btn-guide-primary { background: var(--primary); color: #fff; }
.btn-guide-primary:hover { background: var(--accent); color: #fff; }
.btn-guide-outline { border: 2px solid var(--primary); color: var(--primary); }
.btn-guide-outline:hover { background: var(--primary); color: #fff; }
.text-primary-custom { color: var(--primary) !important; }
.bg-primary-soft { background: var(--bg) !important; }

/* --- 子页面追加 --- */
/* 排行榜页面专属样式 */
        .rank-section {
            padding: 40px 0;
        }
.rank-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--border);
        }
.rank-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
.rank-header h2 i {
            color: var(--primary);
        }
.rank-badge {
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 600;
        }
.rank-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 15px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow);
        }
.rank-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
.rank-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 50px;
            text-align: center;
            font-family: var(--font-serif);
        }
.rank-number.top-1 {
            color: #f59e0b;
            font-size: 2.2rem;
        }
.rank-number.top-2 {
            color: #94a3b8;
            font-size: 2rem;
        }
.rank-number.top-3 {
            color: #d97706;
            font-size: 1.9rem;
        }
.rank-cover {
            width: 70px;
            height: 95px;
            border-radius: 6px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--border);
        }
.rank-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
.rank-info {
            flex: 1;
        }
.rank-info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 5px;
        }
.rank-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }
.rank-stats {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 8px;
            font-size: 0.8rem;
            color: var(--text-light);
        }
.rank-stats i {
            color: var(--accent);
            margin-right: 3px;
        }
.rank-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
.rank-tag {
            background: var(--bg);
            color: var(--primary);
            font-size: 0.75rem;
            padding: 2px 10px;
            border-radius: 12px;
            border: 1px solid var(--border);
        }
.rank-tag.hot {
            background: #fef3c7;
            color: #92400e;
            border-color: #fcd34d;
        }
.rank-tag.new {
            background: #d1fae5;
            color: #065f46;
            border-color: #6ee7b7;
        }
.tabs-wrapper {
            display: flex;
            gap: 10px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
.tab-btn {
            background: #fff;
            border: 2px solid var(--border);
            color: var(--text-light);
            padding: 8px 20px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
.tab-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
.tab-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
.rank-note {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            margin-top: 30px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }
.rank-note i {
            color: var(--primary);
            font-size: 1.5rem;
            margin-top: 2px;
        }
.rank-note p {
            color: var(--text);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }
.rank-card {
                flex-wrap: wrap;
                gap: 10px;
            }
.rank-number {
                min-width: 35px;
                font-size: 1.4rem;
            }
.rank-cover {
                width: 60px;
                height: 85px;
            }
.rank-info {
                min-width: calc(100% - 130px);
            }

/* --- 子页面追加 --- */
.feedback-hero {
            background: linear-gradient(135deg, #059669 0%, #14b8a6 100%);
            color: #fff;
            padding: 80px 0 60px;
            text-align: center;
        }
.feedback-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }
.feedback-hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }
.feedback-section {
            padding: 60px 0;
        }
.feedback-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px;
            border: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }
.feedback-card:hover {
            box-shadow: var(--shadow-hover);
        }
.feedback-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: var(--primary);
            color: #fff;
            margin-bottom: 20px;
        }
.feedback-card h3 {
            color: var(--text);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
.feedback-card p {
            color: var(--text-light);
            line-height: 1.8;
        }
.feedback-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
.feedback-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-light);
            line-height: 1.7;
        }
.feedback-list li:last-child {
            border-bottom: none;
        }
.feedback-list i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 0.9rem;
        }
.form-section {
            background: var(--bg);
            padding: 60px 0;
        }
.form-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            border: 1px solid var(--border);
        }
.form-label {
            color: var(--text);
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }
.form-control, .form-select {
            background: #f8fafc;
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: var(--radius);
            padding: 12px 16px;
            width: 100%;
            margin-bottom: 20px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
.form-control:focus, .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
            outline: none;
        }
.form-control::placeholder {
            color: #9ca3af;
        }
.btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
.btn-submit:hover {
            background: #047857;
            transform: translateY(-2px);
        }
.notice-box {
            background: #ecfdf5;
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin-top: 24px;
        }
.notice-box p {
            color: var(--text);
            margin: 0;
            line-height: 1.7;
        }
.notice-box i {
            color: var(--primary);
            margin-right: 8px;
        }
.contact-info {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            color: var(--text-light);
        }
.contact-info i {
            color: var(--primary);
            width: 24px;
            text-align: center;
        }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }