/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #1F3D2B;
  --color-primary-light: #2D5A3F;
  --color-primary-dark: #14251B;
  --color-secondary: #C9A96E;
  --color-secondary-light: #DDC08A;
  --color-bg: #F5F2ED;
  --color-surface: #FFFFFF;
  --color-text-main: #2A2A2A;
  --color-text-muted: #6E6E6E;
  --color-border: #E3DDD3;
  --color-accent: #C9A96E;
  --color-success: #3D7A5A;
  --color-danger: #B85450;
  --color-dark-bg: #14251B;
  --color-on-dark: #F5F2ED;

  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-badge: 999px;
  --radius-input: 6px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

  --spacing-section: 80px;
  --spacing-section-sm: 48px;
  --container-max: 1200px;

  --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --transition: 0.25s ease-out;
}

/* ===== Reset ===== */
*, *::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(--color-text-main);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

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

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  white-space: nowrap;
}

.logo span {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-secondary);
  display: inline-block;
  margin-left: 4px;
  background: var(--color-bg);
  padding: 2px 8px;
  border-radius: var(--radius-badge);
  vertical-align: middle;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 6px 2px;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.main-nav a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-main);
  margin: 5px auto;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== 进度步骤条 ===== */
.progress-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 12px 20px;
  background: var(--color-dark-bg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  overflow-x: auto;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition);
}

.step:hover {
  color: var(--color-secondary-light);
}

.step.active {
  color: var(--color-secondary-light);
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  transition: all var(--transition);
}

.step.active .step-num {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-dark-bg);
}

.step.done .step-num {
  background: var(--color-success);
  border-color: var(--color-success);
  color: #fff;
  content: '✓';
}

.step-line {
  width: 28px;
  height: 1px;
  background: rgba(255,255,255,0.3);
  flex-shrink: 0;
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-dark-bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  animation: heroZoom 8s ease-out forwards;
}

@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20,37,27,0.92) 0%, rgba(20,37,27,0.75) 60%, rgba(20,37,27,0.4) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary-light);
  background: rgba(201,169,110,0.15);
  border: 1px solid rgba(201,169,110,0.3);
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-on-dark);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  animation: heroFade 1s ease-out 0.2s both;
}

@keyframes heroFade {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  margin-bottom: 28px;
  max-width: 480px;
  animation: heroFade 1s ease-out 0.4s both;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  animation: heroFade 1s ease-out 0.6s both;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.btn:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-dark-bg);
  border-color: var(--color-secondary);
  box-shadow: 0 2px 8px rgba(201,169,110,0.3);
}

.btn-primary:hover {
  background: var(--color-secondary-light);
  border-color: var(--color-secondary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201,169,110,0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(201,169,110,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-on-dark);
  border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
  border-color: var(--color-secondary-light);
  color: var(--color-secondary-light);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
}

/* 优惠券墙 */
.hero-coupons {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  animation: heroFade 1s ease-out 0.8s both;
}

.coupon-main {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  box-shadow: var(--shadow-lg);
  max-width: 380px;
  width: 100%;
  position: relative;
  border: 1px solid var(--color-border);
  z-index: 2;
  transition: transform var(--transition), box-shadow var(--transition);
}

.coupon-main:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.15);
}

.coupon-badge {
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-badge);
  letter-spacing: 0.06em;
}

.coupon-main h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 16px;
  margin-top: 6px;
}

.coupon-main ul {
  list-style: none;
  margin-bottom: 20px;
}

.coupon-main li {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.5;
}

.coupon-main li:last-child {
  border-bottom: none;
}

.coupon-main li::before {
  content: '✦';
  color: var(--color-secondary);
  font-size: 12px;
  flex-shrink: 0;
}

.coupon-main .btn {
  width: 100%;
}

.coupon-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.coupon-small {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  text-align: center;
  min-width: 110px;
  transition: all var(--transition);
}

.coupon-small:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.coupon-small span {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ===== 渠道卖点 ===== */
.channel-points {
  padding: 40px 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.points-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.point-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-right: 1px solid var(--color-border);
}

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

.point-icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.point-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
  line-height: 1.4;
}

.point-text small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ===== 指标看板 ===== */
.stats {
  padding: var(--spacing-section) 0;
  background: var(--color-dark-bg);
  position: relative;
  overflow: hidden;
}

.stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.4), transparent);
}

.stats-header {
  text-align: center;
  margin-bottom: 48px;
}

.stats-header .section-tag {
  color: var(--color-secondary-light);
  border-color: rgba(201,169,110,0.3);
}

.stats-header h2 {
  color: var(--color-on-dark);
}

.stats-header p {
  color: rgba(255,255,255,0.7);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-card);
  padding: 36px 24px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: rgba(201,169,110,0.4);
  background: rgba(255,255,255,0.09);
  transform: translateY(-3px);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 46px;
  font-weight: 800;
  color: var(--color-secondary-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-top: 8px;
  letter-spacing: 0.03em;
}

.stat-trend {
  margin-top: 16px;
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.stat-trend-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-secondary));
  border-radius: 2px;
  animation: trendGrow 1.2s ease-out both;
}

@keyframes trendGrow {
  from { width: 0; }
}

/* ===== 板块通用 ===== */
.section {
  padding: var(--spacing-section) 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary);
  border: 1px solid rgba(201,169,110,0.4);
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 16px;
  background: rgba(201,169,110,0.06);
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header.light h2 {
  color: var(--color-on-dark);
}

.section-header.light p {
  color: rgba(255,255,255,0.7);
}

/* ===== 服务矩阵 ===== */
.matrix {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.matrix-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.matrix-row {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.matrix-row::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-secondary);
  opacity: 0;
  transition: opacity var(--transition);
}

.matrix-row:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.matrix-row:hover::before {
  opacity: 1;
}

.matrix-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  color: var(--color-border);
  min-width: 48px;
  text-align: center;
  transition: color var(--transition), transform var(--transition);
}

.matrix-row:hover .matrix-num {
  color: var(--color-primary);
  transform: scale(1.1);
}

.matrix-info {
  flex: 1;
}

.matrix-info h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.matrix-info p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.matrix-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.matrix-tag {
  font-size: 12px;
  font-weight: 600;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  color: var(--color-primary);
}

.matrix-arrow {
  font-size: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition), color var(--transition);
}

.matrix-row:hover .matrix-arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

.matrix-thumb {
  width: 120px;
  height: 80px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.matrix-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.matrix-row:hover .matrix-thumb img {
  transform: scale(1.05);
}

/* ===== 结果对比 ===== */
.compare {
  padding: var(--spacing-section) 0;
  background: var(--color-surface);
}

.compare-wrap {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}

.compare-side {
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid var(--color-border);
}

.compare-side.win {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, rgba(31,61,43,0.06), rgba(201,169,110,0.08));
  position: relative;
}

.compare-side.win::after {
  content: '推荐';
  position: absolute;
  top: -10px;
  right: 20px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 14px;
  border-radius: var(--radius-badge);
}

.compare-side h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-side.win h3 {
  color: var(--color-primary);
}

.compare-list {
  list-style: none;
}

.compare-list li {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-main);
  line-height: 1.6;
}

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

.compare-list li::before {
  content: attr(data-icon);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.compare-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.vs-badge {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-dark-bg);
  color: var(--color-secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.05em;
  border: 2px solid rgba(255,255,255,0.2);
  box-shadow: var(--shadow-md);
}

.compare-note {
  font-size: 12px;
  color: var(--color-text-muted);
  text-align: center;
}

/* ===== FAQ ===== */
.faq {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary-light);
}

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

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-main);
  min-height: 48px;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}

.faq-q:hover {
  background: rgba(31,61,43,0.04);
}

.faq-icon {
  font-size: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-left: 2px solid var(--color-secondary);
  margin-left: 24px;
  padding-left: 20px;
}

/* ===== 转化表单 ===== */
.contact-section {
  padding: var(--spacing-section) 0;
  background: var(--color-dark-bg);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle at bottom right, rgba(201,169,110,0.08), transparent 70%);
  pointer-events: none;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
  position: relative;
  z-index: 2;
}

.contact-info h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: var(--color-on-dark);
  margin-bottom: 12px;
}

.contact-info p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
}

.contact-detail-item .icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(201,169,110,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  color: var(--color-secondary-light);
}

.contact-note {
  margin-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  padding: 16px;
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: var(--radius-card);
  line-height: 1.6;
}

.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 0 14px;
  font-size: 15px;
  color: var(--color-text-main);
  background: var(--color-bg);
  transition: all var(--transition);
  appearance: none;
}

.form-group textarea {
  height: 90px;
  resize: vertical;
  padding: 12px 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31,61,43,0.1);
  background: var(--color-surface);
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6E6E' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.form-group .hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

/* ===== 资讯区 ===== */
.news {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.news-wrap {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: all var(--transition);
}

.news-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.news-badge {
  font-size: 12px;
  font-weight: 600;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 2px 10px;
  border-radius: var(--radius-badge);
  color: var(--color-primary);
  flex-shrink: 0;
}

.news-badge.hot {
  background: rgba(184,84,80,0.1);
  border-color: rgba(184,84,80,0.3);
  color: var(--color-danger);
}

.news-badge.new {
  background: rgba(61,122,90,0.1);
  border-color: rgba(61,122,90,0.3);
  color: var(--color-success);
}

.news-item-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-main);
  transition: color var(--transition);
  line-height: 1.4;
}

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

.news-date {
  font-size: 13px;
  color: var(--color-text-muted);
  flex-shrink: 0;
  font-family: var(--font-mono);
}

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

.news-side-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.news-side-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.side-list {
  list-style: none;
}

.side-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}

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

.side-list li:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.side-list .rank {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-secondary);
  min-width: 24px;
}

.side-list li:nth-child(1) .rank { color: var(--color-danger); }
.side-list li:nth-child(2) .rank { color: var(--color-danger); }
.side-list li:nth-child(3) .rank { color: var(--color-danger); }

.side-contact {
  background: var(--color-primary);
  color: var(--color-on-dark);
  border: none;
}

.side-contact h3 {
  color: var(--color-on-dark);
  border-bottom-color: rgba(255,255,255,0.2);
}

.side-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 16px;
}

.side-contact .btn {
  background: var(--color-surface);
  color: var(--color-primary);
}

.side-contact .btn:hover {
  background: rgba(255,255,255,0.9);
}

/* ===== 隐私说明 ===== */
.privacy {
  padding: var(--spacing-section) 0;
  background: var(--color-surface);
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.privacy-item {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: all var(--transition);
}

.privacy-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.privacy-icon {
  font-size: 28px;
  margin-bottom: 16px;
  display: inline-block;
}

.privacy-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-main);
}

.privacy-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-dark-bg);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

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

.footer-brand .logo {
  color: var(--color-on-dark);
  font-size: 22px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-on-dark);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

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

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

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

.footer-col ul a:hover {
  color: var(--color-secondary-light);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .points-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .point-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .compare-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .compare-center {
    order: -1;
  }

  .vs-badge {
    width: 44px;
    height: 44px;
    font-size: 14px;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .news-wrap {
    grid-template-columns: 1fr;
  }

  .privacy-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    gap: 0;
  }

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

  .main-nav a {
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
  }

  .main-nav a:last-child {
    border-bottom: none;
  }

  .main-nav a::after {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .progress-steps {
    padding: 8px 16px;
    justify-content: flex-start;
  }

  .step {
    font-size: 12px;
    padding: 4px 8px;
  }

  .step-line {
    width: 16px;
  }

  .hero {
    min-height: auto;
  }

  .hero h1 {
    font-size: 28px;
    line-height: 1.25;
  }

  .hero-sub {
    font-size: 15px;
  }

  .hero-coupons {
    flex-direction: column;
    align-items: stretch;
  }

  .coupon-side {
    flex-direction: row;
    justify-content: center;
  }

  .btn {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
  }

  .matrix-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px;
  }

  .matrix-num {
    font-size: 22px;
  }

  .matrix-meta {
    width: 100%;
    justify-content: space-between;
  }

  .matrix-thumb {
    width: 100%;
    height: 140px;
  }

  .section {
    padding: var(--spacing-section-sm) 0;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .section-header h2 {
    font-size: 26px;
  }

  .faq-q {
    font-size: 15px;
    padding: 14px 16px;
  }

  .faq-a-inner {
    margin-left: 16px;
    padding-left: 16px;
  }

  .contact-form {
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .points-grid {
    grid-template-columns: 1fr;
  }

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

  .coupon-main {
    padding: 20px;
  }
}

/* ===== 动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}