/* ============================================================
   广东中城智联科技有限公司 · 安绿捷充换电服务平台
   门户网站全局样式
   ============================================================ */

:root {
  --brand-600: #1677ff;
  --brand-700: #0958d9;
  --brand-800: #003eb3;
  --brand-50: #e6f4ff;
  --brand-100: #bae0ff;
  --accent-600: #4096ff;
  --accent-700: #69b1ff;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .14);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--slate-800);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section--tint {
  background: var(--slate-50);
}

.section--brand {
  background: linear-gradient(135deg, var(--brand-700), var(--brand-600));
  color: var(--white);
}

/* ---------- 通用标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--brand-600);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: var(--brand-600);
}

.section-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  color: var(--slate-900);
  margin: 14px 0 12px;
  line-height: 1.25;
}

.section-desc {
  color: var(--slate-500);
  font-size: 17px;
  max-width: 720px;
}

.section--brand .section-title,
.section--brand .section-desc {
  color: var(--white);
}

.section--brand .eyebrow {
  color: #bae0ff;
}

.section--brand .eyebrow::before {
  background: #bae0ff;
}

.section-head {
  margin-bottom: 48px;
}

.section-head--center {
  text-align: center;
}

.section-head--center .section-desc {
  margin: 0 auto;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--brand-600);
  color: var(--white);
}

.btn--primary:hover {
  background: var(--brand-700);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(22, 119, 255, .28);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, .5);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, .14);
  border-color: var(--white);
}

.btn--outline {
  background: var(--white);
  color: var(--brand-700);
  border-color: var(--brand-600);
}

.btn--outline:hover {
  background: var(--brand-50);
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-100);
  transition: box-shadow .25s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 19px;
  color: var(--slate-900);
}

.brand__mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-600), var(--accent-600));
  display: grid;
  place-items: center;
  color: var(--white);
  flex-shrink: 0;
}

.brand__sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--slate-500);
  letter-spacing: 1px;
}

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

.nav__link {
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--slate-600);
  transition: all .2s ease;
}

.nav__link:hover {
  color: var(--brand-700);
  background: var(--brand-50);
}

.nav__link.is-active {
  color: var(--brand-700);
  background: var(--brand-100);
}

.nav__cta {
  margin-left: 10px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--slate-800);
  border-radius: 2px;
  transition: .25s;
}

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(105, 177, 255, .35), transparent 60%),
    linear-gradient(135deg, #001d66 0%, #0958d9 55%, #1677ff 100%);
  color: var(--white);
  padding: 110px 0 130px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .22);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(34px, 5.4vw, 56px);
  font-weight: 800;
  line-height: 1.16;
  margin-bottom: 22px;
}

.hero__title em {
  font-style: normal;
  color: #91caff;
}

.hero__desc {
  font-size: 18px;
  color: rgba(255, 255, 255, .88);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 48px;
}

.hero__stat {
  padding: 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(4px);
}

.hero__stat b {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: #91caff;
}

.hero__stat span {
  font-size: 13px;
  color: rgba(255, 255, 255, .82);
}

.hero__visual {
  position: relative;
}

.hero__visual img {
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, .2);
}

.hero__card {
  position: absolute;
  left: -18px;
  bottom: -24px;
  background: var(--white);
  color: var(--slate-800);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero__card-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--brand-50);
  display: grid;
  place-items: center;
  color: var(--brand-600);
  flex-shrink: 0;
}

.hero__card b {
  display: block;
  font-size: 15px;
}

.hero__card span {
  font-size: 13px;
  color: var(--slate-500);
}

/* ---------- 数据条带 ---------- */
.metrics {
  padding: 52px 0;
  background: var(--slate-900);
  color: var(--white);
}

.metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.metric {
  text-align: center;
  padding: 10px;
}

.metric b {
  display: block;
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
  color: #91caff;
}

.metric span {
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
}

/* ---------- 卡片 ---------- */
.cards {
  display: grid;
  gap: 24px;
}

.cards--3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards--4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: all .28s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-100);
}

.card__icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--brand-50);
  color: var(--brand-600);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 10px;
}

.card p {
  color: var(--slate-500);
  font-size: 15px;
}

/* ---------- 业务板块预览 ---------- */
.biz-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--slate-200);
  transition: all .28s ease;
}

.biz-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--brand-100);
}

.biz-item__num {
  font-size: 14px;
  font-weight: 800;
  color: var(--brand-600);
  background: var(--brand-50);
  border-radius: 10px;
  padding: 6px 12px;
  flex-shrink: 0;
}

/* ---------- 时间轴 ---------- */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--brand-100);
}

.timeline__item {
  position: relative;
  padding-bottom: 34px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -30px;
  top: 5px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--white);
  border: 5px solid var(--brand-600);
}

.timeline__year {
  font-weight: 800;
  font-size: 20px;
  color: var(--brand-700);
  margin-bottom: 6px;
}

.timeline__item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 6px;
}

.timeline__item p {
  color: var(--slate-500);
  font-size: 15px;
}

/* ---------- 团队 / 人物 ---------- */
.people-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.person {
  text-align: center;
  padding: 28px 18px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--slate-200);
  transition: all .25s ease;
}

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

.person__avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--brand-100), var(--accent-600));
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 26px;
  font-weight: 800;
}

.person h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
}

.person .role {
  display: inline-block;
  margin: 6px 0 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-600);
  background: var(--brand-50);
  padding: 3px 12px;
  border-radius: 999px;
}

.person p {
  font-size: 13px;
  color: var(--slate-500);
  line-height: 1.6;
}

/* ---------- 资质荣誉 ---------- */
.honor-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.honor {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 20px;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--slate-200);
}

.honor__icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand-600);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.honor b {
  display: block;
  font-size: 15px;
  color: var(--slate-900);
}

.honor span {
  font-size: 13px;
  color: var(--slate-500);
}

/* ---------- 技术/产品标签 ---------- */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--brand-50);
  color: var(--brand-700);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--brand-100);
}

/* ---------- 公示/公告列表 ---------- */
.notice-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.notice {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--slate-200);
  transition: all .2s ease;
  cursor: pointer;
}

.notice:hover {
  border-color: var(--brand-200);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.notice__date {
  flex-shrink: 0;
  text-align: center;
  min-width: 64px;
  padding: 8px 6px;
  border-radius: 10px;
  background: var(--brand-50);
  color: var(--brand-700);
}

.notice__date b {
  display: block;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
}

.notice__date span {
  font-size: 12px;
}

.notice__body {
  flex: 1;
}

.notice__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 6px;
}

.notice__tag--price { background: #fef3c7; color: #b45309; }
.notice__tag--safety { background: #fee2e2; color: #b91c1c; }
.notice__tag--service { background: #dcfce7; color: #15803d; }
.notice__tag--policy { background: #dbeafe; color: #1d4ed8; }

.notice__body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 4px;
}

.notice__body p {
  font-size: 14px;
  color: var(--slate-500);
}

.notice__arrow {
  color: var(--slate-400);
  flex-shrink: 0;
}

/* ---------- 筛选 ---------- */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--slate-200);
  background: var(--white);
  color: var(--slate-600);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s ease;
}

.filter-btn:hover,
.filter-btn.is-active {
  background: var(--brand-600);
  color: var(--white);
  border-color: var(--brand-600);
}

/* ---------- 新闻 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .28s ease;
  display: flex;
  flex-direction: column;
}

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

.news-card__cover {
  height: 180px;
  background: linear-gradient(135deg, var(--brand-100), var(--accent-600));
  display: grid;
  place-items: center;
  color: var(--white);
}

.news-card__body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-card__meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--slate-400);
  margin-bottom: 10px;
}

.news-card__meta .cat {
  color: var(--brand-600);
  font-weight: 700;
}

.news-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-card p {
  font-size: 14px;
  color: var(--slate-500);
  flex: 1;
}

.news-card a {
  margin-top: 14px;
  font-weight: 700;
  color: var(--brand-600);
  font-size: 14px;
}

/* ---------- 联系 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 22px;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--slate-200);
  margin-bottom: 16px;
}

.contact-item__icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand-600);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.contact-item b {
  display: block;
  color: var(--slate-900);
  font-size: 16px;
  margin-bottom: 2px;
}

.contact-item p {
  color: var(--slate-500);
  font-size: 15px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  transition: border .2s, box-shadow .2s;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-600);
  box-shadow: 0 0 0 3px rgba(22, 119, 255, .14);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--slate-900);
  color: rgba(255, 255, 255, .7);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 44px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  font-size: 14px;
  transition: color .2s;
}

.footer-col a:hover {
  color: #91caff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, .7);
  transition: color .2s;
}

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

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-600);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .3s ease;
}

.to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 公示详情页 ---------- */
.detail {
  max-width: 780px;
  margin: 0 auto;
}

.detail__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.detail__date {
  color: var(--slate-500);
  font-size: 14px;
}

.detail__title {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  color: var(--slate-900);
  line-height: 1.3;
  margin-bottom: 24px;
}

.article {
  color: var(--slate-600);
  font-size: 16px;
  line-height: 1.9;
}

.article p {
  margin-bottom: 16px;
}

.article ul {
  margin: 0 0 20px 22px;
  list-style: disc;
}

.article li {
  margin-bottom: 10px;
}

.detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 780px;
  margin: 40px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--slate-200);
}

.detail-nav__prev,
.detail-nav__next {
  font-size: 15px;
  color: var(--brand-700);
  font-weight: 600;
  max-width: 280px;
}

.detail-nav__prev:hover,
.detail-nav__next:hover {
  text-decoration: underline;
}

.detail-nav__next {
  text-align: right;
}

/* ---------- 附件下载 ---------- */
.attachment {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 780px;
  margin: 32px auto 0;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  background: var(--brand-50);
  border: 1px solid var(--brand-100);
}

.attachment__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--white);
  color: var(--brand-600);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.attachment__info b {
  display: block;
  font-size: 14px;
  color: var(--slate-500);
  margin-bottom: 2px;
}

.attachment__info a {
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-700);
}

.attachment__info a:hover {
  text-decoration: underline;
}

/* ---------- 页面页头（内页） ---------- */
.page-hero {
  position: relative;
  background:
    radial-gradient(800px 300px at 85% -20%, rgba(105, 177, 255, .4), transparent 60%),
    linear-gradient(135deg, #001d66, #0958d9 60%, #1677ff);
  color: var(--white);
  padding: 84px 0 96px;
}

.page-hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800;
  margin-bottom: 14px;
}

.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, .85);
  max-width: 640px;
}

.breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 20px;
}

.breadcrumb a:hover {
  color: #91caff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .cards--4,
  .people-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics__grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .cards--3,
  .cards--4,
  .news-grid,
  .honor-list,
  .contact-grid { grid-template-columns: 1fr; }
  .people-grid { grid-template-columns: 1fr; }
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--white);
    padding: 12px 20px 20px;
    box-shadow: var(--shadow-md);
    gap: 4px;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav__link { padding: 12px 14px; }
  .nav__cta { margin: 8px 0 0; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 90px; }
  .hero__card { left: 10px; bottom: -20px; }
  .notice { flex-wrap: wrap; }
  .notice__arrow { display: none; }
}

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }