/* =========================================================
   黑鲨运动成长中心 · 全局设计系统
   依据《网站视觉设计规范.md》v1.0 实现
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 官方品牌四色（不得改动） */
  --c-blue: #003FE8;
  --c-yellow: #FFD146;
  --c-purple: #6922E5;
  --c-red: #FF0026;

  /* 派生 / 中性色 */
  --c-blue-dark: #0033C4;
  --c-blue-light: #EAF0FF;
  --c-yellow-dark: #F0BE1F;
  --c-white: #FFFFFF;
  --c-gray: #F5F7FA;
  --c-ink: #16181D;
  --c-ink-soft: #1E2027;
  --c-heading: #17191E;
  --c-body: #52565E;
  --c-muted: #8B909A;
  --c-line: #E8EAEE;
  --c-disabled-bg: #E5E7EB;
  --c-ph-bg: #EEF3FB;

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;

  /* 阴影（唯一阴影色蓝黑调） */
  --sh-1: 0 2px 8px rgba(15, 30, 70, 0.06);
  --sh-2: 0 12px 28px rgba(15, 30, 70, 0.12);

  /* 布局 */
  --container: 1200px;
  --gutter: 24px;
  --sec-y: 96px;
  --header-h: 72px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Barlow", var(--font);
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* 锚点跳转时避开 sticky 头部，避免标题被遮挡 */
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-body);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.has-bottom-bar { padding-bottom: 0; }
@media (max-width: 767px) {
  body.has-bottom-bar { padding-bottom: 76px; }
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-blue); text-decoration: none; }
a:hover { text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  color: var(--c-heading);
  font-weight: 700;
  line-height: 1.25;
}

p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }

:focus-visible {
  outline: 3px solid var(--c-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--c-blue); color: #fff;
  padding: 10px 16px; border-radius: var(--r-md);
  z-index: 2000; transition: top .2s;
}
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: var(--sec-y) 0; }
.section--gray { background: var(--c-gray); }
.section--blue { background: var(--c-blue); }
.section--ink { background: var(--c-ink); }
.section--tight { padding-top: 0; }

/* 相邻区块不同底色，避免白上白 */
.section--gray + .section--gray { border-top: 1px solid var(--c-line); }

/* ---------- 4. 区块标题范式 ---------- */
.section-head { margin-bottom: 48px; max-width: 760px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.section-head__line {
  width: 48px; height: 4px; background: var(--c-yellow);
  border-radius: 2px; margin-bottom: 18px;
}
.section-head--center .section-head__line { margin-left: auto; margin-right: auto; }

.section-head h2 {
  font-size: 40px; font-weight: 700; line-height: 1.25;
  letter-spacing: .01em;
}
.section-head__en {
  margin-top: 10px;
  font-size: 14px; font-weight: 600; line-height: 1.4;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--c-blue);
}
.section-head__desc { margin-top: 16px; color: var(--c-body); max-width: 720px; }
.section-head--center .section-head__desc { margin-left: auto; margin-right: auto; }

.on-dark .section-head h2 { color: #fff; }
.on-dark .section-head__desc { color: rgba(255,255,255,.82); }
.on-dark .section-head__en { color: var(--c-yellow); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 14px 32px;
  font-size: 16px; font-weight: 600; line-height: 1;
  border-radius: var(--r-md); border: 1.5px solid transparent;
  cursor: pointer; text-align: center; white-space: nowrap;
  transition: background-color .3s ease-out, color .3s ease-out,
    border-color .3s ease-out, transform .3s ease-out, box-shadow .3s ease-out;
}
.btn .icon { width: 20px; height: 20px; }

.btn--primary { background: var(--c-blue); color: #fff; }
.btn--primary:hover { background: var(--c-blue-dark); color: #fff; }

.btn--secondary {
  background: #fff; color: var(--c-blue);
  border-color: var(--c-blue);
}
.btn--secondary:hover { background: var(--c-blue-light); }

.btn--accent { background: var(--c-yellow); color: var(--c-heading); }
.btn--accent:hover { background: var(--c-yellow-dark); }

.btn--sm { height: 42px; padding: 10px 22px; font-size: 15px; }
.btn--block { width: 100%; }

/* 蓝色区块上的按钮（规范：蓝色区不放黄按钮，用白底蓝字实底按钮保证对比） */
.btn--on-blue { background: #fff; color: var(--c-blue); border-color: #fff; }
.btn--on-blue:hover { background: var(--c-blue-light); color: var(--c-blue); }

/* 通栏图片（Hero / 口号横幅 / 教练海报：直角、原比例、不加遮罩文字） */
.full-bleed { width: 100%; margin: 0; }
.full-bleed img { width: 100%; height: auto; display: block; }

@media (hover: hover) {
  .btn--primary:hover, .btn--accent:hover { transform: translateY(-2px); box-shadow: var(--sh-2); }
}

/* 文字链接 */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--c-blue); font-weight: 600; font-size: 15px;
}
.link-arrow .icon { width: 18px; height: 18px; transition: transform .3s ease-out; }
.link-arrow:hover { text-decoration: underline; }
.link-arrow:hover .icon { transform: translateX(4px); }

/* ---------- 6. 图标 ---------- */
.icon {
  width: 24px; height: 24px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.icon--16 { width: 16px; height: 16px; }
.icon--32 { width: 32px; height: 32px; }
.icon--48 { width: 48px; height: 48px; }

.icon-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: var(--r-lg);
  background: var(--c-blue-light); color: var(--c-blue);
}
.icon-badge .icon { width: 28px; height: 28px; }

/* ---------- 7. 徽章 ---------- */
.badge {
  display: inline-block;
  background: var(--c-yellow); color: var(--c-heading);
  font-size: 12px; font-weight: 600; line-height: 1;
  padding: 7px 10px; border-radius: var(--r-sm);
}

/* ---------- 8. 卡片 ---------- */
.card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--sh-1);
  transition: box-shadow .3s ease-out, transform .3s ease-out, border-color .3s ease-out;
}
.card__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--c-gray); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease-out; }
.card__body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.card__body h3 { font-size: 22px; font-weight: 600; }
.card__body p { color: var(--c-body); font-size: 15px; line-height: 1.7; margin: 0; }
.card__foot { margin-top: auto; padding-top: 4px; }
.card .badge { position: absolute; top: 16px; left: 16px; z-index: 2; }

@media (hover: hover) {
  .card:hover { transform: translateY(-4px); box-shadow: var(--sh-2); border-color: #dfe3ea; }
  .card:hover .card__media img { transform: scale(1.03); }
}

.card--nomedia .card__body { padding: 28px 24px; }

/* 图片占位（待补充内容统一样式） */
.media-ph {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; background: var(--c-ph-bg); color: var(--c-blue);
  width: 100%; height: 100%; text-align: center; padding: 16px;
}
.media-ph .icon { width: 44px; height: 44px; }
.media-ph span { font-size: 13px; color: var(--c-muted); }

/* kinder-fit 等内嵌文字图：contain 白底 */
.media-contain { background: #fff; }
.media-contain img { object-fit: contain; padding: 0; }

/* ---------- 9. 头部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  height: var(--header-h);
  background: #fff; border-bottom: 1px solid var(--c-line);
  transition: background-color .3s ease-out, box-shadow .3s ease-out, border-color .3s ease-out;
}
.site-header__inner {
  height: var(--header-h);
  display: flex; align-items: center; gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand__mark { height: 30px; width: auto; }
.brand__mark--light { display: none; }
.brand__name {
  font-size: 18px; font-weight: 700; color: var(--c-heading);
  letter-spacing: .02em; line-height: 1;
}

/* 首页头部（Hero 之上）默认透明 + 白字
   注意：当前首页使用实色头部（front-matter 不写 header 即默认 solid），
   该组合仅在把 Hero 上移到头部之下、并加强顶部遮罩后才可用。 */
.site-header--transparent {
  background: transparent; border-bottom-color: transparent;
}
.site-header--transparent .brand__mark--light { display: block; }
.site-header--transparent .brand__mark--dark { display: none; }
.site-header--transparent .brand__name { color: #fff; }
.site-header--transparent .nav__link { color: #fff; }
.site-header--transparent .nav__link:hover { color: var(--c-yellow); }
.site-header--transparent .nav-toggle__bar { background: #fff; }
.site-header--transparent .nav-toggle { color: #fff; }

/* 滚动后实色 */
.site-header.is-scrolled {
  background: #fff; border-bottom-color: var(--c-line);
  box-shadow: 0 6px 20px rgba(15, 30, 70, 0.08);
}
.site-header.is-scrolled .brand__mark--light { display: none; }
.site-header.is-scrolled .brand__mark--dark { display: block; }
.site-header.is-scrolled .brand__name { color: var(--c-heading); }
.site-header.is-scrolled .nav__link { color: var(--c-heading); }
.site-header.is-scrolled .nav__link:hover,
.site-header.is-scrolled .nav__link:focus-visible { color: var(--c-blue); }
.site-header.is-scrolled .nav-toggle__bar { background: var(--c-heading); }
.site-header.is-scrolled .nav-toggle { color: var(--c-heading); }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 10px 14px; font-size: 15px; font-weight: 500;
  color: var(--c-heading); border-radius: var(--r-sm);
  transition: color .2s ease-out, background-color .2s ease-out;
}
.nav__link:hover { color: var(--c-blue); }
.nav__link[aria-current="page"] { color: var(--c-blue); font-weight: 600; }
.nav__link .icon { width: 15px; height: 15px; opacity: .65; }

.nav__dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 200px; padding: 8px;
  background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--r-md); box-shadow: var(--sh-2);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .2s ease-out, transform .2s ease-out, visibility .2s;
}
.nav__item:hover .nav__dropdown,
.nav__item:focus-within .nav__dropdown { opacity: 1; visibility: visible; transform: none; }
.nav__dropdown a {
  display: block; padding: 9px 12px; font-size: 15px;
  color: var(--c-heading); border-radius: var(--r-sm);
}
.nav__dropdown a:hover { background: var(--c-blue-light); color: var(--c-blue); }

.nav__cta { margin-left: 12px; }

/* 汉堡按钮 */
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 44px; height: 44px; margin-left: auto;
  background: none; border: 0; cursor: pointer; color: var(--c-heading);
}
.nav-toggle__bars { display: flex; flex-direction: column; gap: 5px; width: 24px; }
.nav-toggle__bar {
  height: 2px; width: 100%; background: var(--c-heading);
  border-radius: 2px; transition: transform .3s ease-out, opacity .3s ease-out;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端全屏菜单 */
.mobile-menu {
  position: fixed; inset: 0; z-index: 1100;
  background: var(--c-ink);
  display: none; flex-direction: column;
  padding: 0 24px;
  transform: translateX(100%);
  transition: transform .3s ease-out;
  overflow-y: auto;
}
.mobile-menu.is-open { display: flex; transform: none; }
.mobile-menu__top {
  height: var(--header-h); display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 2; background: var(--c-ink);
}
.mobile-menu__top .brand__name { color: #fff; }
.mobile-menu__top .brand__mark--light { display: block; }
.mobile-menu__top .brand__mark--dark { display: none; }
.mobile-menu__close {
  width: 44px; height: 44px; background: none; border: 0; color: #fff;
  display: flex; align-items: center; justify-content: center; cursor: pointer; margin-left: auto;
}
.mobile-menu__close .icon { width: 26px; height: 26px; }
.mobile-menu__nav { padding: 8px 0; }
.mobile-menu__nav a {
  display: block; padding: 14px 4px; font-size: 19px; font-weight: 600;
  color: #fff; border-bottom: 1px solid rgba(255,255,255,.1);
}
.mobile-menu__nav a:hover { color: var(--c-yellow); }
.mobile-menu__sub a { font-size: 16px; font-weight: 400; padding-left: 20px; color: rgba(255,255,255,.82); }
.mobile-menu__sub { padding-left: 0; }
.mobile-menu__foot {
  margin-top: auto; padding: 20px 0;
  display: grid; gap: 12px;
  position: sticky; bottom: 0; z-index: 2;
  background: var(--c-ink);
  border-top: 1px solid rgba(255,255,255,.1);
}
.mobile-menu__phone {
  display: inline-flex; align-items: center; gap: 8px;
  color: #fff; font-size: 17px; font-weight: 600;
}
.mobile-menu__phone .icon { width: 20px; height: 20px; color: var(--c-yellow); }

/* ---------- 10. Hero ---------- */
.hero { position: relative; }
.hero__media {
  position: absolute; inset: 0; overflow: hidden; background: var(--c-ink);
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(22,24,29,.55) 0%, rgba(22,24,29,.12) 60%, rgba(22,24,29,.05) 100%);
}
.hero__inner {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; justify-content: flex-end;
  min-height: 86vh; max-height: 820px;
  padding-top: calc(var(--header-h) + 40px);
  padding-bottom: 48px;
}
.hero__eyebrow {
  font-size: 14px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-yellow); margin-bottom: 14px;
}
.hero h1 {
  color: #fff; font-size: 56px; font-weight: 800; line-height: 1.15;
  letter-spacing: .01em; max-width: 16ch;
}
.hero__sub {
  margin-top: 18px; color: rgba(255,255,255,.92);
  font-size: 17px; line-height: 1.7; max-width: 620px;
}
.hero__actions { margin-top: 28px; display: flex; gap: 16px; flex-wrap: wrap; }

.hero__facts {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  background: rgba(255,255,255,.94);
  border-top: 1px solid rgba(15,30,70,.08);
}
.hero__facts ul {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 0;
}
.hero__facts li {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 500; color: var(--c-heading);
}
.hero__facts .icon { width: 18px; height: 18px; color: var(--c-blue); }
.hero__facts li + li { padding-left: 16px; border-left: 1px solid var(--c-line); }

@media (min-width: 768px) {
  .hero__inner { padding-bottom: calc(48px + 44px); }
}

/* 内页 Banner */
.page-banner { position: relative; }
.page-banner__media { position: absolute; inset: 0; overflow: hidden; background: var(--c-ink); }
.page-banner__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.page-banner__scrim { position: absolute; inset: 0; background: linear-gradient(to top, rgba(22,24,29,.6), rgba(22,24,29,.28)); }
.page-banner__inner {
  position: relative; z-index: 2;
  min-height: 40vh; min-height: max(300px, 40vh);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-top: calc(var(--header-h) + 24px); padding-bottom: 40px;
}
.page-banner h1 { color: #fff; font-size: 36px; font-weight: 700; }
.breadcrumb { margin-top: 10px; font-size: 14px; color: rgba(255,255,255,.75); }
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { margin: 0 8px; }

/* ---------- 11. 信任数据条 ---------- */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.trust__item { display: flex; gap: 16px; align-items: flex-start; }
.trust__num {
  font-family: var(--font-num); font-size: 32px; font-weight: 700;
  color: var(--c-blue); line-height: 1.1;
}
.trust__label { font-size: 15px; color: var(--c-body); line-height: 1.5; }

/* ---------- 12. 通用网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* 6 项目卡：3×2 */
.grid--programs { grid-template-columns: repeat(3, 1fr); }

/* ---------- 13. 为什么选黑鲨 ---------- */
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px 24px; }
.why__item h3 { font-size: 18px; font-weight: 600; margin: 18px 0 8px; }
.why__item p { font-size: 15px; margin: 0; }

/* ---------- 14. 教练 ---------- */
.coach-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.coach-card { position: relative; }
.coach-card__media {
  aspect-ratio: 1 / 1; overflow: hidden; border-radius: var(--r-lg);
  background: var(--c-gray); box-shadow: var(--sh-1);
}
.coach-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease-out; }
@media (hover: hover) {
  .coach-card:hover .coach-card__media img { transform: scale(1.03); }
}
.coach-poster { border-radius: 0; max-width: 1920px; margin: 0 auto; }
.coach-poster img { width: 100%; height: auto; }
.coach-note {
  margin-top: 20px; font-size: 14px; color: var(--c-muted);
  display: flex; align-items: center; gap: 8px; justify-content: center;
}
.on-dark .link-arrow { color: var(--c-yellow); }
.on-dark .coach-note { color: rgba(255, 255, 255, .62); }
.on-dark .split p, .on-dark .why__item p { color: rgba(255, 255, 255, .78); }
.on-dark .why__item h3 { color: #fff; }
.on-dark .icon-badge { background: rgba(255, 255, 255, .1); color: var(--c-yellow); }

/* ---------- 15. 场馆与设备 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split--reverse .split__media { order: 2; }
.split__media img { border-radius: var(--r-lg); width: 100%; height: auto; display: block; }
.split__media .media-ph { border-radius: var(--r-lg); min-height: 320px; }
.split h2 { font-size: 34px; margin-bottom: 18px; }
.split p { font-size: 16px; }
.split ul.checks { display: grid; gap: 12px; margin-top: 20px; }
.split ul.checks li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--c-body); }
.split ul.checks .icon { width: 20px; height: 20px; color: var(--c-blue); flex: none; margin-top: 3px; }

.device-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.device-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg); box-shadow: var(--sh-1); overflow: hidden; }
.device-card__media { padding: 16px; height: 168px; display: flex; align-items: center; justify-content: center; background: #fff; }
.device-card__media img { max-height: 100%; width: auto; max-width: 100%; object-fit: contain; }
.device-card__body { padding: 0 16px 20px; }
.device-card__body h3 { font-size: 16px; font-weight: 600; }
.device-card__body p { font-size: 13px; color: var(--c-muted); margin: 6px 0 0; line-height: 1.6; }

/* ---------- 16. 评价占位 ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg);
  box-shadow: var(--sh-1); padding: 28px 24px; display: flex; flex-direction: column; gap: 16px;
}
.quote-card .icon { width: 30px; height: 30px; color: var(--c-yellow); }
.ph-lines { display: grid; gap: 10px; }
.ph-line { display: block; height: 12px; border-radius: 6px; background: var(--c-gray); }
.u-flex { flex: 1; }
.ph-line--80 { width: 80%; }
.ph-line--60 { width: 60%; }
.ph-line--90 { width: 90%; }
.quote-card__foot { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.ph-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--c-gray); flex: none; }

/* ---------- 17. 动态占位 ---------- */
.news-list { display: grid; gap: 16px; }
.news-item {
  display: flex; align-items: center; gap: 20px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg);
  padding: 20px 24px; box-shadow: var(--sh-1);
}
.news-item__tag {
  flex: none; font-size: 13px; font-weight: 600; color: var(--c-blue);
  background: var(--c-blue-light); border-radius: var(--r-sm); padding: 6px 10px;
}
.news-item__title { flex: 1; font-size: 16px; color: var(--c-muted); }
.news-item__date { flex: none; font-size: 14px; color: var(--c-muted); }

/* ---------- 18. 尾区 CTA ---------- */
.cta-band { background: var(--c-blue); color: #fff; }
.cta-band .container { text-align: center; }
.cta-band h2 { color: #fff; font-size: 40px; }
.cta-band p { color: rgba(255,255,255,.85); margin-top: 14px; }
.cta-band__phone {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 28px 0 8px; color: #fff; font-size: 38px; font-weight: 700;
  font-family: var(--font-num); letter-spacing: .02em;
}
.cta-band__phone .icon { width: 32px; height: 32px; color: var(--c-yellow); }
.cta-band__actions { margin-top: 24px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-band__meta { margin-top: 22px; font-size: 14px; color: rgba(255,255,255,.8); }

/* ---------- 19. 页脚 ---------- */
.site-footer { background: var(--c-ink); color: rgba(255,255,255,.72); }
.site-footer__top {
  display: grid; grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 40px; padding: 72px 0 48px;
}
.site-footer .brand__name { color: #fff; }
.site-footer .brand__mark--light { display: block; }
.site-footer .brand__mark--dark { display: none; }
.site-footer__slogan {
  margin-top: 18px; font-size: 14px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--c-yellow);
}
.site-footer__intro { margin-top: 10px; font-size: 15px; line-height: 1.7; max-width: 34ch; }
.site-footer h3 {
  color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px;
  letter-spacing: .02em;
}
.site-footer ul { display: grid; gap: 12px; }
.site-footer a { color: rgba(255,255,255,.72); font-size: 15px; }
.site-footer a:hover { color: var(--c-yellow); }
.site-footer__contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.site-footer__contact .icon { width: 18px; height: 18px; color: var(--c-yellow); flex: none; margin-top: 4px; }
.site-footer__contact a { font-size: 15px; }
.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255,255,255,.55);
}
.site-footer__bottom a { font-size: 13px; color: rgba(255,255,255,.55); }

/* ---------- 20. 移动端底部常驻 CTA ---------- */
.bottom-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 900;
  background: #fff; border-top: 1px solid var(--c-line);
  box-shadow: 0 -6px 20px rgba(15,30,70,.08);
  padding: 12px 16px; gap: 12px;
  align-items: center;
  /* 与 body.has-bottom-bar 预留高度保持一致，避免页脚与底栏之间出现缝隙 */
  min-height: 76px;
}
.bottom-bar .btn { flex: 1; }
@media (max-width: 767px) { .bottom-bar { display: flex; } }

/* ---------- 21. 联系信息（无在线表单，统一电话预约） ---------- */
.info-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 56px; }
.info-list li { display: flex; gap: 14px; align-items: flex-start; }
.info-list .icon-badge { flex: none; width: 48px; height: 48px; }
.info-list .icon-badge .icon { width: 24px; height: 24px; }
.info-list h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.info-list p, .info-list a { font-size: 15px; color: var(--c-body); margin: 0; }
.info-list a.big { font-size: 20px; font-weight: 700; color: var(--c-blue); }

/* 小号说明文字（占位说明、补充提示等） */
.note { font-size: 14px; color: var(--c-muted); }

/* ---------- 22. 地图 ---------- */
.map-embed { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--c-line); box-shadow: var(--sh-1); }
.map-embed iframe { display: block; width: 100%; height: 380px; border: 0; }
.map-link {
  display: flex; align-items: center; gap: 16px;
  min-height: 200px; padding: 28px;
  color: var(--c-heading); text-decoration: none;
  transition: background-color .2s ease-out;
}
.map-link:hover { background: var(--c-gray); }
.map-link__badge { flex: none; }
.map-link__title { display: block; font-size: 18px; margin-bottom: 4px; }
.map-link__hint { color: var(--c-blue); font-size: 15px; }

/* ---------- 23. 内容排版（详情页正文） ---------- */
.lead { font-size: 19px; line-height: 1.75; color: var(--c-heading); margin-bottom: 18px; }
.prose { max-width: 720px; }
.prose h2 { font-size: 26px; margin: 40px 0 16px; }
.prose h3 { font-size: 20px; margin: 28px 0 12px; }
.prose p { margin-bottom: 14px; }
.prose ul { display: grid; gap: 10px; margin: 16px 0; }
.prose ul li { position: relative; padding-left: 22px; }
.prose ul li::before {
  content: ""; position: absolute; left: 2px; top: 11px;
  width: 8px; height: 8px; border-radius: 2px; background: var(--c-blue);
}
.prose img { border-radius: var(--r-lg); margin: 20px 0; }

/* ---------- 24. 锚点导航（关于页） ---------- */
.anchor-nav { display: flex; gap: 8px; flex-wrap: wrap; }
.anchor-nav a {
  padding: 8px 16px; border-radius: var(--r-md); border: 1px solid var(--c-line);
  background: #fff; color: var(--c-heading); font-size: 15px; font-weight: 500;
}
.anchor-nav a:hover { border-color: var(--c-blue); color: var(--c-blue); background: var(--c-blue-light); }

/* ---------- 25. 动效 ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease-out, transform .6s ease-out; }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal-group > * { opacity: 0; transform: translateY(24px); transition: opacity .6s ease-out, transform .6s ease-out; }
.js .reveal-group.is-visible > * { opacity: 1; transform: none; }
.js .reveal-group.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.js .reveal-group.is-visible > *:nth-child(2) { transition-delay: 80ms; }
.js .reveal-group.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.js .reveal-group.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.js .reveal-group.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.js .reveal-group.is-visible > *:nth-child(6) { transition-delay: 400ms; }

.hero__media img { will-change: transform; }
@media (min-width: 768px) and (prefers-reduced-motion: no-preference) {
  .kenburns .hero__media img { animation: kenburns 24s ease-out forwards; }
}
@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.06); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal, .js .reveal-group > * {
    opacity: 1 !important; transform: none !important; transition: none !important;
  }
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}

/* ---------- 26. 响应式 ---------- */
@media (max-width: 1024px) {
  :root { --container: 100%; --sec-y: 80px; }
  .nav__list { display: none; }
  .nav-toggle { display: flex; }
  .nav__cta { display: none; }
  .hero h1 { font-size: 46px; }
  .split { gap: 40px; }
  .device-grid, .why { grid-template-columns: repeat(2, 1fr); }
  .coach-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .grid--programs, .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .quote-grid { grid-template-columns: 1fr; }
  .trust { grid-template-columns: repeat(2, 1fr); gap: 28px 24px; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split--reverse .split__media { order: 0; }
  .site-footer__top { grid-template-columns: 1fr 1fr; gap: 32px; padding: 56px 0 36px; }
}

@media (max-width: 767px) {
  :root { --sec-y: 56px; --gutter: 16px; --header-h: 56px; }

  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 26px; }
  .section-head__en { font-size: 12px; }

  .brand__mark { height: 26px; }
  .brand__name { font-size: 16px; }

  .hero__inner {
    min-height: 70vh; max-height: none;
    padding-top: calc(var(--header-h) + 32px); padding-bottom: 20px;
  }
  .hero h1 { font-size: 32px; }
  .hero__sub { font-size: 15px; }
  .hero__actions { flex-direction: column; gap: 12px; }
  .hero__actions .btn { width: 100%; }
  .hero__facts { position: static; background: transparent; border-top: 0; }
  .hero__facts ul {
    flex-wrap: wrap; justify-content: flex-start; gap: 8px 16px; padding: 16px 0 0;
  }
  .hero__facts li { font-size: 13px; }
  .hero__facts li + li { padding-left: 0; border-left: 0; }

  .page-banner__inner { min-height: 260px; padding-top: calc(var(--header-h) + 16px); padding-bottom: 28px; }
  .page-banner h1 { font-size: 26px; }

  .grid { gap: 16px; }
  .grid--2, .grid--3, .grid--4, .grid--programs { grid-template-columns: 1fr; }
  .why { grid-template-columns: 1fr; gap: 28px; }
  .trust { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
  .trust__num { font-size: 26px; }
  .device-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .coach-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .card__body { padding: 16px; }
  .card__body h3 { font-size: 18px; }
  .card__body p { font-size: 14px; }

  .cta-band h2 { font-size: 26px; }
  .cta-band__phone { font-size: 30px; }
  .cta-band__actions { flex-direction: column; }
  .cta-band__actions .btn { width: 100%; }

  .site-footer__top { grid-template-columns: 1fr; gap: 28px; padding: 48px 0 28px; }
  .site-footer__bottom { flex-direction: column; gap: 8px; }

  .info-list { grid-template-columns: 1fr; gap: 22px; }
  .map-embed iframe { height: 300px; }

  .coach-note { text-align: center; }

  .split h2 { font-size: 24px; }
  .news-item { flex-wrap: wrap; gap: 10px 16px; }
  .news-item__title { flex: 1 1 100%; order: 3; }
}

@media (max-width: 380px) {
  .trust { grid-template-columns: 1fr; }
  .device-grid, .coach-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- 27. 工具类 ---------- */
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }
.link-center { margin-top: 8px; text-align: center; }
.quote-mark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 46px; line-height: .7; font-weight: 700; color: var(--c-yellow);
}
.news-empty {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 10px; background: var(--c-gray); border: 1px solid var(--c-line);
  border-radius: var(--r-lg); padding: 40px 24px; color: var(--c-body);
}
.news-empty .icon { color: var(--c-blue); }
.news-empty p { margin: 0; max-width: 560px; }
/* 404 页把提示语作为页面 h1（全站验收要求每页单 h1） */
.news-empty h1 { margin: 0; max-width: 560px; font-size: 20px; }