/**
 * ==========================================================================
 * landing.css —— 落地页专属样式
 * --------------------------------------------------------------------------
 * 说明：
 *   1. 本文件仅包含落地页特有的样式，通用组件样式在 components.css
 *   2. 遵循 mobile-first 原则，响应式断点与 components.css 一致
 *   3. 所有颜色使用 CSS 变量，方便主题定制
 * ==========================================================================
 */

/* ═══════════════════════════════════════════════════════════
   1. 通知条
   ═══════════════════════════════════════════════════════════ */
.notice-bar {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--c-bg);
  padding: 10px 0;
  font-size: 13px;
  position: relative;
  z-index: 100;
}
.notice-bar.is-hidden { display: none; }
.notice-bar__track {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
}
.notice-bar__close {
  background: rgba(255,255,255,0.2);
  border: none;
  color: var(--c-bg);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ═══════════════════════════════════════════════════════════
   2. 顶部导航
   ═══════════════════════════════════════════════════════════ */
.site-header {
  background: var(--c-bg);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 99;
  transition: var(--transition-base);
}
.site-header.is-fixed {
  padding: 8px 0;
  box-shadow: var(--shadow-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--color-text-main);
}
.logo__icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-bg);
  font-size: 18px;
}
.logo__text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
}
.logo--light .logo__text { color: var(--c-bg); }
.logo--light .logo__icon { background: rgba(255,255,255,0.2); }

.nav {
  display: flex;
  gap: 24px;
}
.nav__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-base);
  position: relative;
}
.nav__link:hover {
  color: var(--color-primary);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition-base);
}
.nav__link:hover::after { width: 100%; }

.header-tel {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.menu-btn {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--color-text-main);
  cursor: pointer;
  padding: 4px;
}

/* 抽屉菜单 */
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}
.drawer-mask.is-show {
  opacity: 1;
  visibility: visible;
}
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--c-bg);
  z-index: 1001;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.drawer.is-open { transform: translateX(0); }
.drawer__head {
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.drawer__nav {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}
.drawer__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border-light);
}
.drawer__link i {
  width: 24px;
  color: var(--color-primary);
}
.drawer__foot {
  padding: 16px;
  border-top: 1px solid var(--color-border);
}

/* ═══════════════════════════════════════════════════════════
   3. Hero 首屏
   ═══════════════════════════════════════════════════════════ */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-secondary) 100%);
  padding: 48px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: center;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  color: var(--c-bg);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.hero__title {
  font-size: 40px;
  font-weight: 800;
  color: var(--c-bg);
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero__title em {
  color: var(--color-accent);
  font-style: normal;
}

.hero__subtitle {
  font-size: 16px;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero__stats {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
}
.hero__stat {
  text-align: center;
}
.hero__stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  display: block;
}
.hero__stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}

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

/* Hero 表单卡片 */
.hero__card {
  background: var(--c-bg);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-xl);
}
.hero__card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
}

/* 倒计时 */
.countdown-box {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}
.countdown-item {
  text-align: center;
}
.countdown-num {
  display: block;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--c-bg);
  font-size: 20px;
  font-weight: 700;
  line-height: 48px;
  border-radius: var(--radius-md);
}
.countdown-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 4px;
  display: block;
}
.countdown-over {
  text-align: center;
  color: var(--color-error);
  font-weight: 600;
  padding: 12px;
  background: var(--color-error-light);
  border-radius: var(--radius-md);
}

@media (max-width: 991px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__title { font-size: 28px; }
  .hero__stats { justify-content: center; }
  .hero__cta { justify-content: center; }
}

/* ═══════════════════════════════════════════════════════════
   4. 痛点区
   ═══════════════════════════════════════════════════════════ */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.pain-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}
.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.pain-card__icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
  color: var(--color-primary);
}
.pain-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.pain-card p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

@media (max-width: 991px) {
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .pain-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   5. 提升方式对比
   ═══════════════════════════════════════════════════════════ */
.way-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.way-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  transition: var(--transition-base);
  position: relative;
}
.way-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-4px);
}
.way-card--hot {
  border-color: var(--color-accent);
}
.way-card__flag {
  position: absolute;
  top: -2px;
  right: 12px;
  background: var(--color-accent);
  color: var(--c-bg);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.way-card__icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
}
.way-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.way-card__desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.way-card__meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 12px;
  margin-bottom: 16px;
}
.way-card__meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

@media (max-width: 991px) {
  .way-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .way-cards { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   6. 学历层次
   ═══════════════════════════════════════════════════════════ */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.level-card {
  background: var(--c-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  position: relative;
}
.level-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.level-card--hot {
  border: 2px solid var(--color-accent);
}
.level-card__flag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-accent);
  color: var(--c-bg);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  z-index: 1;
}
.level-card__top {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--c-bg);
  padding: 28px;
  text-align: center;
}
.level-card__path {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 8px;
}
.level-card__top h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.level-card__year {
  font-size: 14px;
  opacity: 0.9;
}
.level-card__body {
  padding: 24px;
}
.level-card__body ul {
  list-style: none;
  margin-bottom: 20px;
}
.level-card__body li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
}
.level-card__body li i {
  color: var(--color-success);
  margin-top: 2px;
}
.level-card__price {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.level-card__price b {
  font-size: 24px;
  color: var(--color-accent);
}

@media (max-width: 991px) {
  .levels-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   7. 专业展示
   ═══════════════════════════════════════════════════════════ */
.major-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.major-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}
.major-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.major-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.major-card__name {
  font-weight: 600;
  font-size: 15px;
}
.major-card__hot {
  background: var(--color-accent);
  color: var(--c-bg);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
}
.major-card__body {
  margin-bottom: 16px;
}
.major-card__info {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}
.major-card__prospect {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

/* ═══════════════════════════════════════════════════════════
   8. 院校展示
   ═══════════════════════════════════════════════════════════ */
.school-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.school-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  text-align: center;
}
.school-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.school-card__logo {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-secondary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
  color: var(--color-primary);
}
.school-card__name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}
.school-card__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: 12px;
}
.school-card__majors {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}
.school-tip {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-top: 24px;
}
.school-tip i {
  color: var(--color-primary);
  margin-right: 6px;
}

/* ═══════════════════════════════════════════════════════════
   9. 报名流程
   ═══════════════════════════════════════════════════════════ */
.process-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.process-item {
  text-align: center;
  color: var(--c-bg);
  position: relative;
}
.process-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 32px;
  right: -20px;
  width: 40px;
  height: 2px;
  background: rgba(255,255,255,0.3);
}
.process-item__num {
  font-size: 12px;
  opacity: 0.6;
  margin-bottom: 12px;
}
.process-item__icon {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
  backdrop-filter: blur(10px);
}
.process-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.process-item p {
  font-size: 13px;
  opacity: 0.8;
  line-height: 1.6;
}

@media (max-width: 1200px) {
  .process-list { grid-template-columns: repeat(3, 1fr); }
  .process-item:nth-child(3)::after { display: none; }
}
@media (max-width: 768px) {
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .process-item::after { display: none !important; }
}

/* ═══════════════════════════════════════════════════════════
   10. 服务保障
   ═══════════════════════════════════════════════════════════ */
.guard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.guard-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}
.guard-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.guard-card i {
  font-size: 40px;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.guard-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.guard-card p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

@media (max-width: 991px) {
  .guard-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .guard-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   11. 学员案例
   ═══════════════════════════════════════════════════════════ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.case-card {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.case-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.case-card__avatar {
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.case-card__name {
  font-weight: 600;
  font-size: 15px;
}
.case-card__tag {
  background: var(--color-success);
  color: var(--c-bg);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
}
.case-card__meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}
.case-card__edu {
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--color-border);
}
.case-card__quote {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  font-style: italic;
}

@media (max-width: 991px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .case-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════
   12. 测评工具
   ═══════════════════════════════════════════════════════════ */
.test-box {
  background: var(--c-bg);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.test-question__title {
  text-align: center;
  font-size: 20px;
  margin-bottom: 32px;
}
.test-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 480px;
  margin: 0 auto;
}
.test-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px;
  background: var(--color-bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
}
.test-option:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.test-option__icon {
  font-size: 32px;
}
.test-option__label {
  font-size: 14px;
  font-weight: 500;
}

.test-result {
  text-align: center;
}
.test-result__icon {
  font-size: 48px;
  margin-bottom: 16px;
}
.test-result__title {
  font-size: 20px;
  margin-bottom: 8px;
}
.test-result__card {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 400px;
  margin: 24px auto;
  text-align: left;
}
.test-result__row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}
.test-result__row:last-of-type { border-bottom: none; }
.test-result__divider {
  height: 1px;
  background: var(--color-border);
  margin: 16px 0;
}
.test-result__recommend {
  text-align: center;
}
.test-result__label {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
}
.test-result__value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.test-result__desc {
  font-size: 13px;
  color: var(--color-text-secondary);
}

@media (max-width: 576px) {
  .test-options { grid-template-columns: 1fr; }
  .test-box { padding: 24px; }
}

/* ═══════════════════════════════════════════════════════════
   13. FAQ
   ═══════════════════════════════════════════════════════════ */
.faq-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-top: 32px;
}
.faq-cta > i {
  font-size: 32px;
  color: var(--color-primary);
}
.faq-cta > div { flex: 1; }

/* ═══════════════════════════════════════════════════════════
   14. 底部转化区
   ═══════════════════════════════════════════════════════════ */
.final-cta {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  padding: 64px 0;
}
.final-cta__inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: center;
}
.final-cta__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-accent);
  color: var(--c-bg);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  margin-bottom: 20px;
}
.final-cta__left h2 {
  font-size: 32px;
  color: var(--c-bg);
  margin-bottom: 16px;
}
.final-cta__left h2 em {
  color: var(--color-accent);
  font-style: normal;
  font-size: 48px;
}
.final-cta__left > p {
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 24px;
}
.final-cta__list {
  list-style: none;
}
.final-cta__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 12px;
}
.final-cta__list i {
  color: var(--color-accent);
}

.final-form {
  background: var(--c-bg);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xl);
}
.final-form__title {
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
}
.final-form__tip {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 16px;
}
.form-privacy {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 16px;
}
.form-privacy i {
  color: var(--color-success);
}

@media (max-width: 991px) {
  .final-cta__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .final-cta__left h2 { font-size: 24px; }
  .final-cta__left h2 em { font-size: 36px; }
  .final-cta__list { display: inline-block; text-align: left; }
}

/* ═══════════════════════════════════════════════════════════
   15. 页脚
   ═══════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--color-text-main);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-col h4 {
  color: var(--c-bg);
  font-size: 14px;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 10px;
  transition: var(--transition-base);
}
.footer-col a:hover {
  color: var(--c-bg);
}
.footer-slogan {
  font-size: 13px;
  margin: 12px 0;
  opacity: 0.8;
}
.footer-contact {
  font-size: 13px;
  line-height: 2;
}
.footer-contact b {
  color: var(--c-bg);
}
.footer-qr {
  text-align: center;
}
.footer-qr__img {
  width: 100px;
  height: 100px;
  background: var(--c-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--color-text-tertiary);
  margin: 0 auto 8px;
}
.footer-qr__text {
  font-size: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  margin-left: 16px;
}
.footer-links a:hover { color: var(--c-bg); }

.footer-disclaimer {
  text-align: center;
  font-size: 12px;
  opacity: 0.5;
  margin-top: 16px;
}

@media (max-width: 991px) {
  .footer-top { grid-template-columns: repeat(2, 1fr); }
  .footer-col--brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* ═══════════════════════════════════════════════════════════
   16. 悬浮组件
   ═══════════════════════════════════════════════════════════ */
.side-bar {
  position: fixed;
  right: 20px;
  bottom: 100px;
  z-index: 98;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.side-bar__item {
  width: 56px;
  height: 56px;
  background: var(--c-bg);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
}
.side-bar__item:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}
.side-bar__item i {
  font-size: 20px;
  color: var(--color-primary);
}
.side-bar__item span {
  font-size: 10px;
  color: var(--color-text-secondary);
}
.side-bar__pop {
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--c-bg);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  font-size: 14px;
}
.side-bar__pop--qr {
  text-align: center;
  padding: 16px;
}
.side-bar__item:hover .side-bar__pop {
  opacity: 1;
  visibility: visible;
}
.side-qr {
  width: 100px;
  height: 100px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
}

.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--c-bg);
  display: flex;
  padding: 8px;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
  z-index: 98;
}
.mobile-bar__btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 8px;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 11px;
  border: none;
  background: none;
}
.mobile-bar__btn i {
  font-size: 20px;
}
.mobile-bar__main {
  flex: 2;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark, var(--c-accent-dark)) 100%);
  color: var(--c-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.live-feed {
  position: fixed;
  left: 20px;
  bottom: 100px;
  background: var(--c-bg);
  padding: 10px 16px;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  z-index: 97;
  max-width: 280px;
}
.live-feed i {
  color: var(--color-accent);
}

/* ═══════════════════════════════════════════════════════════
   17. AI 客服面板
   ═══════════════════════════════════════════════════════════ */
.ai-panel {
  position: fixed;
  right: 20px;
  bottom: 100px;
  width: 360px;
  height: 480px;
  background: var(--c-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  z-index: 999;
  transform: translateY(20px);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}
.ai-panel.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.ai-panel__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--c-bg);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}
.ai-panel__avatar {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.ai-panel__info { flex: 1; }
.ai-panel__name { font-weight: 600; }
.ai-panel__status {
  font-size: 12px;
  opacity: 0.9;
  display: flex;
  align-items: center;
  gap: 6px;
}
.live-dot {
  width: 8px;
  height: 8px;
  background: var(--c-success-soft);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.ai-panel__close {
  background: none;
  border: none;
  color: var(--c-bg);
  font-size: 20px;
  cursor: pointer;
}
.ai-panel__body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--color-bg-tertiary);
}
.ai-panel__quick {
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ai-quick__btn {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition-base);
}
.ai-quick__btn:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}
.ai-panel__foot {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
}
.ai-panel__input {
  flex: 1;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 10px 16px;
  font-size: 14px;
  outline: none;
}
.ai-panel__input:focus {
  border-color: var(--color-primary);
}
.ai-panel__send {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: var(--c-bg);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* AI 消息 */
.ai-msg {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.ai-msg--user {
  flex-direction: row-reverse;
}
.ai-msg__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.ai-msg--user .ai-msg__avatar {
  background: var(--color-primary);
  color: var(--c-bg);
}
.ai-msg__content {
  background: var(--c-bg);
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 14px;
  line-height: 1.6;
  max-width: 260px;
  box-shadow: var(--shadow-sm);
}
.ai-msg--user .ai-msg__content {
  background: var(--color-primary);
  color: var(--c-bg);
}

@media (max-width: 576px) {
  .ai-panel {
    right: 0;
    bottom: 60px;
    left: 0;
    width: auto;
    height: 60vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  }
}

/* ═══════════════════════════════════════════════════════════
   18. 成功弹窗
   ═══════════════════════════════════════════════════════════ */
.success-icon {
  font-size: 64px;
  margin-bottom: 16px;
}
.success-title {
  font-size: 24px;
  margin-bottom: 8px;
}
.success-desc {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.account-card {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
}
.account-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-border);
}
.account-row:last-child { border-bottom: none; }
.account-label {
  color: var(--color-text-secondary);
  font-size: 14px;
  width: 80px;
}
.account-value {
  flex: 1;
  font-weight: 600;
  font-size: 16px;
  font-family: monospace;
}
.copy-btn {
  background: var(--color-primary-light);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-primary);
}
.success-tips {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.success-tips p { margin-bottom: 4px; }
.success-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ═══════════════════════════════════════════════════════════
   19. 离开挽留弹窗
   ═══════════════════════════════════════════════════════════ */
.exit-icon {
  font-size: 48px;
  margin-bottom: 16px;
}
.exit-benefits {
  list-style: none;
  text-align: left;
  max-width: 280px;
  margin: 20px auto;
}
.exit-benefits li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 14px;
}
.exit-benefits i {
  color: var(--color-success);
}

/* ═══════════════════════════════════════════════════════════
   20. 优惠券
   ═══════════════════════════════════════════════════════════ */
.coupon-tip {
  font-size: 12px;
  margin-top: 4px;
}
.coupon-tip .text-success { color: var(--color-success); }
.coupon-tip .text-error { color: var(--color-error); }

/* ═══════════════════════════════════════════════════════════
   21. 响应式工具类补充
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .u-hide-mobile { display: none !important; }
}
@media (min-width: 769px) {
  .u-hide-pc { display: none !important; }
}

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.section--accent { background: linear-gradient(135deg, var(--c-teal) 0%, var(--c-info) 100%); color: var(--c-bg); }
.section--accent .sec-head__title,
.section--accent .sec-head__desc { color: var(--c-bg); }
.section--accent .sec-head__tag { background: rgba(255,255,255,.2); color: var(--c-bg); }
.skill-grid { gap: 14px; }
.skill-card {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-md, 12px);
  padding: 18px 12px;
  text-align: center;
  transition: transform .2s, background .2s;
  backdrop-filter: blur(4px);
}
.skill-card:hover { transform: translateY(-4px); background: rgba(255,255,255,.22); }
.skill-card__icon { font-size: 28px; margin-bottom: 8px; color: var(--c-warning-pale); }
.skill-card__name { font-weight: 600; font-size: 15px; line-height: 1.3; }
.skill-card__alias { font-size: 12px; opacity: .8; margin-top: 2px; }