/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #1b4332;
  --primary-dark: #0d2b1e;
  --primary-light: #2d6a4f;
  --accent: #b08968;
  --accent-light: #d4a574;
  --accent-dark: #8a5a3a;
  --bg: #faf9f7;
  --bg-alt: #f1ede5;
  --surface: #ffffff;
  --text: #1c1917;
  --text-muted: #78716c;
  --border: #e7e0d8;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-serif: 'Noto Serif SC', serif;
  --font-sans: 'Noto Sans SC', sans-serif;
}

/* ========== 基础重置 ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  color: var(--accent-dark);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ========== 通用容器 ========== */
.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding: 90px 0;
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(27, 67, 50, 0.08);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 30px;
  letter-spacing: 0.5px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.8;
}

/* ========== 按钮 ========== */
.btn {
  border-radius: 50px;
  font-weight: 600;
  padding: 12px 30px;
  transition: var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.3px;
}

.btn-lg {
  padding: 15px 42px;
  font-size: 17px;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover, .btn-primary:focus {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(138, 90, 58, 0.28);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.65);
  color: #fff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-primary {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline-primary:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(176, 137, 104, 0.4);
  outline-offset: 2px;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: transparent;
  padding: 18px 0;
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
  padding: 10px 0;
}

.nav-card {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  transition: var(--transition);
}

.site-header.scrolled .nav-card {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links .nav-link {
  color: var(--text);
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 15px;
  transition: var(--transition);
}

.nav-links .nav-link:hover {
  background: rgba(27, 67, 50, 0.06);
  color: var(--primary);
}

.nav-links .nav-link.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: 50px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border: none;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(176, 137, 104, 0.3);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 18px;
  align-items: center;
  justify-content: center;
}

/* ========== Hero 深色横幅 ========== */
.hero {
  position: relative;
  padding: 110px 0 100px;
  background: linear-gradient(140deg, rgba(13, 43, 30, 0.95) 0%, rgba(27, 67, 50, 0.88) 60%, rgba(45, 106, 79, 0.82) 100%), url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat, var(--primary-dark);
  color: #fff;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -40px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: rgba(212, 165, 116, 0.12);
  filter: blur(80px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212, 165, 116, 0.18);
  border: 1px solid rgba(212, 165, 116, 0.3);
  color: #e8cba8;
  font-size: 14px;
  font-weight: 500;
  padding: 7px 20px;
  border-radius: 40px;
  margin-bottom: 26px;
  letter-spacing: 0.5px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 24px;
  color: #fff;
  letter-spacing: 0.5px;
}

.hero h1 .highlight {
  color: var(--accent-light);
}

.hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
  margin-bottom: 34px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 42px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 34px;
}

.hero-point {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-point i {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--accent-light);
  flex-shrink: 0;
}

.hero-point .hp-value {
  display: block;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.3;
}

.hero-point .hp-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

/* Hero 右侧榜单 */
.hero-rank {
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 30px 28px;
  color: var(--text);
  position: relative;
}

.hero-rank::before {
  content: '';
  position: absolute;
  top: -12px;
  right: 22px;
  width: 70px;
  height: 70px;
  background: var(--accent);
  border-radius: 20px;
  transform: rotate(15deg);
  opacity: 0.1;
  z-index: 0;
}

.hero-rank .rank-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}

.hero-rank .rank-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.hero-rank .rank-badge {
  background: rgba(27, 67, 50, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 30px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #f1ede8;
}

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

.rank-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  background: var(--bg-alt);
  color: var(--text-muted);
  flex-shrink: 0;
}

.rank-item:nth-child(1) .rank-num {
  background: #f5e6d3;
  color: var(--accent-dark);
}

.rank-item:nth-child(2) .rank-num {
  background: #eef0ea;
  color: var(--primary);
}

.rank-item:nth-child(3) .rank-num {
  background: #f5eee3;
  color: #b07a4a;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-tag {
  font-size: 12.5px;
  color: var(--text-muted);
}

.rank-score {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  color: var(--accent-dark);
  font-size: 16px;
  flex-shrink: 0;
}

.rank-score i {
  color: #e9a441;
  font-size: 13px;
}

/* ========== 客户案例 ========== */
.case-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(231, 224, 216, 0.7);
  height: 100%;
  transition: var(--transition);
}

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

.case-card .card-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.case-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.case-card:hover .card-img-wrap img {
  transform: scale(1.04);
}

.case-card .img-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(27, 67, 50, 0.85);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 5px 16px;
  border-radius: 30px;
  backdrop-filter: blur(6px);
}

.case-body {
  padding: 24px 24px 20px;
}

.case-body .quote {
  font-size: 15px;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 18px;
  min-height: 70px;
}

.case-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.case-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.case-user-info .name {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}

.case-user-info .role {
  font-size: 13px;
  color: var(--text-muted);
}

.case-stars {
  color: #e9a441;
  font-size: 14px;
  margin-left: auto;
}

/* ========== 数据指标 ========== */
.stat-wrap {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 60px 50px;
  position: relative;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
}

.stat-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13, 43, 30, 0.94), rgba(27, 67, 50, 0.88));
}

.stat-wrap .row {
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  padding: 20px 10px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-value {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.stat-value sup {
  font-size: 26px;
  color: var(--accent-light);
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 8px;
  letter-spacing: 0.5px;
}

/* ========== 前后对比 ========== */
.compare-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 20px;
}

.compare-col {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.compare-col-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.compare-col-title .icon-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.compare-col.traditional .icon-circle {
  background: #f5e9e3;
  color: #b0674a;
}

.compare-col.us .icon-circle {
  background: #e8f0e9;
  color: var(--primary);
}

.compare-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  border-bottom: 1px dashed #e9e2da;
}

.compare-list li:last-child {
  border-bottom: none;
}

.compare-list li i {
  margin-top: 5px;
  font-size: 15px;
  flex-shrink: 0;
}

.compare-list li .fa-xmark {
  color: #c47a5a;
}

.compare-list li .fa-check {
  color: var(--primary-light);
}

/* ========== 流程步骤 ========== */
.step-card {
  text-align: center;
  padding: 34px 28px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  height: 100%;
  transition: var(--transition);
}

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

.step-num {
  width: 60px;
  height: 60px;
  margin: 0 auto 22px;
  border-radius: 20px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  position: relative;
}

.step-card:nth-child(2) .step-num {
  background: var(--accent);
}

.step-card:nth-child(3) .step-num {
  background: #8a7a5e;
}

.step-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.step-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin: 0;
}

/* 步骤连线 */
.step-arrow {
  position: absolute;
  top: 50%;
  right: -30px;
  transform: translateY(-50%);
  color: #cfc6b8;
  font-size: 22px;
  z-index: 3;
}

/* ========== 资讯 ========== */
.news-list-item {
  display: block;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.news-list-item:hover {
  padding-left: 10px;
}

.news-list-item:first-child {
  padding-top: 0;
}

.news-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.6;
  transition: var(--transition);
}

.news-list-item:hover .news-title {
  color: var(--primary);
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: #a8a29e;
}

.news-meta i {
  margin-right: 4px;
}

.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.sidebar-card .sidebar-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card .sidebar-title i {
  color: var(--accent);
}

.top-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed #eee9e3;
  font-size: 14px;
}

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

.top-list-item .rank {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--bg-alt);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.top-list-item:nth-child(1) .rank,
.top-list-item:nth-child(2) .rank,
.top-list-item:nth-child(3) .rank {
  background: var(--primary);
  color: #fff;
}

.top-list-item .name {
  color: var(--text);
  font-weight: 500;
  flex: 1;
}

.top-list-item .score {
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 13px;
}

.tip-box {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-top: 8px;
}

.tip-box p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--surface);
}

.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 20px 24px;
  background: var(--surface);
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: rgba(27, 67, 50, 0.03);
}

.accordion-button:focus {
  box-shadow: none;
  border-color: transparent;
}

.accordion-button::after {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  content: '\f078';
  background: none;
  width: auto;
  height: auto;
  color: var(--accent);
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
  color: var(--accent-dark);
}

.accordion-body {
  padding: 0 24px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.85;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

/* ========== 咨询入口 ========== */
.cta-section {
  position: relative;
  background: var(--bg-alt);
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta-info h2 {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 16px;
}

.cta-info p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 26px;
}

.cta-contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 30px;
}

.cta-contact-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  font-size: 16px;
  color: var(--text);
}

.cta-contact-list li i {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.cta-form-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.cta-form-card .form-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.cta-form-card .form-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 26px;
}

.form-control, .form-select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 15px;
  color: var(--text);
  background: #fcfbf9;
  transition: var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(176, 137, 104, 0.12);
  background: #fff;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 6px;
}

textarea.form-control {
  min-height: 110px;
  resize: vertical;
}

.privacy-note {
  font-size: 13px;
  color: #a8a29e;
  text-align: center;
  margin-top: 18px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 70px 0 0;
}

.footer-brand {
  margin-bottom: 20px;
}

.footer-brand .brand {
  justify-content: flex-start;
}

.footer-brand .brand-name {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 340px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  font-family: var(--font-serif);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
  padding-left: 6px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact i {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent-light);
}

.footer-bottom {
  margin-top: 50px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

/* ========== 移动端响应式 ========== */
@media (max-width: 1024px) {
  .section {
    padding: 70px 0;
  }
  .hero h1 {
    font-size: 34px;
  }
  .stat-value {
    font-size: 40px;
  }
  .stat-wrap {
    padding: 44px 24px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 55px 0;
  }
  .section-title {
    font-size: 28px;
  }
  .nav-card {
    padding: 10px 16px;
  }
  .brand-name {
    font-size: 16px;
  }
  .brand-sub {
    display: none;
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 28px 28px;
    box-shadow: var(--shadow-lg);
    transition: right 0.3s ease;
    z-index: 1090;
  }
  .nav-links.open {
    right: 0;
  }
  .nav-links .nav-link {
    font-size: 17px;
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }
  .nav-links .nav-link.active {
    background: transparent;
    color: var(--primary);
    font-weight: 700;
  }
  .nav-links .nav-cta {
    margin-top: 20px;
    width: 100%;
    text-align: center;
  }
  .nav-toggle {
    display: flex;
  }
  .hero {
    padding: 80px 0 70px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    gap: 10px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-points {
    gap: 14px;
    flex-direction: column;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 18px 0;
  }
  .stat-item:last-child {
    border-bottom: none;
  }
  .stat-value {
    font-size: 38px;
  }
  .compare-wrap {
    grid-template-columns: 1fr;
  }
  .step-arrow {
    display: none;
  }
  .step-card {
    margin-bottom: 16px;
  }
  .cta-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-form-card {
    padding: 28px 22px;
  }
  .footer-info {
    margin-bottom: 30px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .section {
    padding: 44px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .hero {
    padding: 65px 0 55px;
  }
  .hero h1 {
    font-size: 26px;
  }
  .hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }
  .hero-actions {
    margin-bottom: 30px;
  }
  .brand-logo {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }
  .brand-name {
    font-size: 15px;
    max-width: 210px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .hero-rank {
    padding: 24px 18px;
  }
  .rank-name {
    font-size: 14px;
  }
  .case-body .quote {
    font-size: 14px;
    min-height: auto;
  }
  .stat-wrap {
    padding: 30px 16px;
  }
  .compare-col {
    padding: 26px 20px;
  }
  .compare-col-title {
    font-size: 19px;
  }
  .step-card {
    padding: 26px 20px;
  }
}