/* =========================================================
   达冠军体育 · 品牌官网样式
   设计：深色主题 / 活力橙 / 专业运动风
   ========================================================= */

:root {
  --brand: #ff5a2c;
  --brand-dark: #e8431a;
  --brand-glow: rgba(255, 90, 44, .45);
  --brand-soft: #fff1ec;
  --bg: #0a0a0f;
  --bg-2: #111118;
  --surface: #181822;
  --surface-2: #20202d;
  --ink: #f5f5f8;
  --ink-2: #c5c6ce;
  --muted: #8b8c99;
  --line: rgba(255,255,255,.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 44px -16px rgba(0, 0, 0, .55);
  --shadow-lg: 0 34px 70px -22px rgba(0, 0, 0, .65);
  --maxw: 1160px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 14px 28px -12px var(--brand-glow);
}
.btn--primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 18px 36px -12px var(--brand-glow); }
.btn--ghost {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  border-color: rgba(255, 255, 255, .35);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .16); }
.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--outline:hover { border-color: var(--brand); color: var(--brand); }
.btn--sm { padding: 9px 18px; font-size: 14px; background: var(--brand); color: #fff; }
.btn--sm:hover { background: var(--brand-dark); }
.btn--block { width: 100%; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: rgba(10, 10, 15, .0);
  transition: background .3s, box-shadow .3s, padding .3s;
  padding: 18px 0;
}
.nav.is-scrolled {
  background: rgba(10, 10, 15, .92);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .6);
  padding: 10px 0;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: #fff; }
.brand__mark {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--brand); color: #fff; font-weight: 800; font-size: 18px;
  overflow: hidden;
}
.brand__logo {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.nav__links { display: flex; align-items: center; gap: 26px; }
.nav__links a { color: rgba(255,255,255,.85); font-weight: 500; font-size: 15px; transition: color .2s; }
.nav__links a:hover { color: var(--brand); }
.nav__links a.btn--sm { color: #fff; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: #fff; transition: .3s; }

/* ---------- 全屏视觉区 ---------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  background: radial-gradient(120% 120% at 80% 0%, #1b2230 0%, #0f1118 55%, #0a0a0f 100%);
  color: #fff;
  overflow: hidden;
  padding: 150px 0 120px;
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.orb { position: absolute; border-radius: 50%; filter: blur(40px); opacity: .55; }
.orb--1 { width: 420px; height: 420px; background: var(--brand); top: -80px; right: -40px; animation: float 9s ease-in-out infinite; }
.orb--2 { width: 320px; height: 320px; background: #2f6bff; bottom: -100px; left: -60px; animation: float 11s ease-in-out infinite reverse; }
.ring {
  position: absolute; top: 50%; left: 50%; width: 720px; height: 720px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255,255,255,.08); border-radius: 50%;
}
.hero__ramp { position: absolute; left: 0; bottom: 0; width: 100%; height: 28%; z-index: 0; }
@keyframes float { 0%,100% { transform: translateY(0) } 50% { transform: translateY(-26px) } }

.hero__inner { position: relative; z-index: 1; }
.hero__eyebrow {
  display: inline-block; letter-spacing: 3px; font-size: 13px; font-weight: 600;
  color: var(--brand); background: rgba(255,90,44,.12); padding: 7px 16px; border-radius: 999px; margin: 0 0 32px;
}
.hero__title { margin: 0 0 34px; }
.hero__line {
  display: block;
  font-size: clamp(40px, 7.5vw, 92px);
  line-height: 1.05; font-weight: 900; letter-spacing: 1px;
}
.hero__line--brand { color: var(--brand); margin-top: 18px; }
.hero__sub { font-size: clamp(16px, 2.2vw, 22px); margin: 0 0 50px; color: rgba(255,255,255,.8); font-weight: 500; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__scroll { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); }
.hero__mouse { display: block; width: 24px; height: 40px; border: 2px solid rgba(255,255,255,.5); border-radius: 14px; position: relative; }
.hero__mouse::after { content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; background: #fff; border-radius: 4px; animation: scroll 1.6s infinite; }
@keyframes scroll { 0% { opacity: 0; top: 7px } 40% { opacity: 1 } 100% { opacity: 0; top: 20px } }

/* ---------- 通用区块 ---------- */
.section { padding: clamp(70px, 9vw, 110px) 0; }
.section--alt { background: var(--bg-2); }
.section--cta { background: var(--surface); }
.section__head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section__kicker { color: var(--brand); font-weight: 700; letter-spacing: 2px; font-size: 13px; margin: 0 0 12px; }
.section__title { font-size: clamp(30px, 4.4vw, 44px); font-weight: 800; margin: 0 0 16px; letter-spacing: .5px; }
.section__lead { color: var(--muted); font-size: 17px; margin: 0; }

/* ---------- 业务卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 28px; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  position: relative; overflow: hidden; text-align: center;
}
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card:hover::before { transform: scaleX(1); }
.card__header { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; margin-bottom: 8px; }
.card__logo { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.card__title { font-size: 26px; font-weight: 800; margin: 0; }
.card__desc { color: var(--ink-2); margin: 0 0 18px; font-size: 15px; }
.card__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.card__list li { position: relative; padding-left: 22px; font-size: 14px; color: var(--ink-2); }
.card__list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }

/* ---------- 筛选标签 ---------- */
.filter { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 40px; }
.filter__btn {
  padding: 8px 20px; border-radius: 999px; background: transparent; border: 1px solid var(--line);
  color: var(--ink-2); font-size: 14px; font-weight: 500; cursor: pointer; transition: .25s;
}
.filter__btn:hover { border-color: var(--brand); color: var(--brand); }
.filter__btn.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ---------- 运动卡片 ---------- */
.course-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 22px; }
.course-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: .35s var(--ease); display: flex; flex-direction: column;
  width: 100%; max-width: 320px; flex: 1 1 280px;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.course-card__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.course-card__tag { padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.course-card__tag--cat { background: rgba(255,90,44,.12); color: var(--brand); }
.course-card__tag--level { background: rgba(255,255,255,.06); color: var(--muted); }
.course-card__title { font-size: 20px; font-weight: 800; margin: 0 0 18px; }
.course-card__meta { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 12px; flex: 1; }
.course-card__meta li { display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; color: var(--ink-2); border-bottom: 1px dashed var(--line); padding-bottom: 10px; }
.course-card__meta li span { color: var(--muted); }
.course-card__meta li b { color: var(--ink); font-weight: 700; }
.course-card__price { color: var(--brand) !important; }

/* ---------- 学员案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.case-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: .35s var(--ease);
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(255,90,44,.25); }
.case-card__avatar { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.avatar {
  width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; font-size: 22px; color: #fff; flex-shrink: 0;
}
.avatar--girl { background: linear-gradient(135deg, #ff7eb3, #ff758c); }
.avatar--boy { background: linear-gradient(135deg, #5b8def, #2f6bff); }
.case-card__info h4 { margin: 0 0 4px; font-size: 17px; }
.case-card__tag-mini { padding: 3px 10px; border-radius: 6px; font-size: 12px; color: var(--brand); background: rgba(255,90,44,.12); }
.case-card__title { font-size: 17px; color: var(--brand); font-weight: 700; margin: 0 0 10px; }
.case-card__desc { color: var(--ink-2); font-size: 15px; margin: 0; line-height: 1.7; }

/* ---------- 门店信息 ---------- */
.store-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.store-card {
  display: flex; flex-direction: column; gap: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: .35s var(--ease);
}
.store-card:hover { box-shadow: var(--shadow-lg); border-color: transparent; }
.store-card__media { display: none; }
.store-card { padding: 24px 26px; }
.store-card__body { padding: 0; display: flex; flex-direction: column; justify-content: center; }
.store-card__title { font-size: 18px; font-weight: 800; margin: 0 0 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; line-height: 1.3; }
.store-card__rows { display: grid; gap: 10px; margin-bottom: 18px; }
.store-card__rows p { display: flex; align-items: center; gap: 10px; margin: 0; color: var(--ink-2); font-size: 14px; }
.store-card__rows p svg { color: var(--brand); flex-shrink: 0; }
.store-card__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.store-card__tags span { padding: 5px 11px; border-radius: 6px; font-size: 12px; color: var(--brand); background: rgba(255,90,44,.12); }

/* ---------- 新闻动态 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; display: flex; gap: 18px; transition: .35s var(--ease);
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(255,90,44,.25); }
.news-card__date {
  width: 60px; height: 60px; border-radius: var(--radius-sm); background: var(--brand); color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center; flex-shrink: 0;
}
.news-card__date span { font-size: 22px; font-weight: 900; line-height: 1; }
.news-card__date small { font-size: 11px; opacity: .85; }
.news-card__title { font-size: 17px; font-weight: 700; margin: 0 0 8px; }
.news-card__desc { color: var(--ink-2); font-size: 14px; margin: 0; line-height: 1.6; }

/* ---------- 关于 ---------- */
.about { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: center; margin-bottom: 44px; }
.about__media { position: relative; min-height: 340px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; }
.about__shape { position: absolute; inset: 0; background: radial-gradient(circle at 30% 20%, rgba(255,90,44,.08), transparent 45%); }
.about__logo { width: 180px; height: 180px; border-radius: 24px; object-fit: cover; box-shadow: var(--shadow-lg); position: relative; z-index: 1; }
.about__big { color: var(--ink); font-weight: 900; font-size: 30px; letter-spacing: 2px; position: relative; z-index: 1; }
.about__body p { color: var(--ink-2); margin: 0 0 16px; }
.about__points { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 26px; }
.point { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 14px; text-align: center; }
.point strong { display: block; color: var(--brand); font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.point span { font-size: 13px; color: var(--muted); }

/* ---------- 背书徽章 ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.badge { padding: 10px 18px; border-radius: 999px; background: rgba(255,255,255,.04); border: 1px solid var(--line); font-size: 14px; color: var(--ink-2); }

/* ---------- 联系区 ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.contact__intro .section__title, .contact__intro .section__kicker { text-align: left; }
.contact__intro .section__lead { text-align: left; }
.contact__direct { display: flex; align-items: center; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.direct { display: flex; flex-direction: column; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 22px; }
.direct__k { font-size: 12px; color: var(--muted); }
.direct__v { font-size: 22px; font-weight: 800; color: var(--brand); }

.form { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); display: grid; gap: 16px; }
.form__row { display: grid; gap: 7px; }
.form label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.form input, .form select, .form textarea {
  width: 100%; padding: 13px 15px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  font-size: 15px; font-family: inherit; color: var(--ink); background: var(--surface); transition: border-color .2s, box-shadow .2s;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(255,90,44,.14); }
.form textarea { resize: vertical; }
.form__hint { margin: 0; font-size: 14px; min-height: 20px; }
.form__hint.is-ok { color: #4ade80; }
.form__hint.is-err { color: #f87171; }

/* ---------- 页脚 ---------- */
.footer { background: var(--bg); color: rgba(255,255,255,.6); padding: 40px 0; border-top: 1px solid var(--line); }
.footer__inner { display: flex; flex-direction: column; gap: 12px; align-items: center; text-align: center; }
.footer__brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; font-size: 17px; }
.footer__contact { margin: 0; font-size: 14px; }
.footer__copy { margin: 0; font-size: 13px; color: rgba(255,255,255,.45); }
.footer__icp { color: rgba(255,255,255,.45); }

/* ---------- 滚动揭示动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .cards, .news-grid { grid-template-columns: 1fr; }
  .about, .contact { grid-template-columns: 1fr; gap: 32px; }
  .about__media { min-height: 240px; }
  .store-grid { grid-template-columns: 1fr; }
  .store-card { display: flex; }
  .about__points { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav__links {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-2); padding: 12px 22px 22px; box-shadow: var(--shadow); transform: translateY(-120%); transition: transform .3s var(--ease); height: auto;
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { color: var(--ink-2) !important; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links a.btn--sm { margin-top: 12px; text-align: center; border-bottom: 0; }
  .nav__toggle { display: flex; }
  .nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__actions .btn { width: 100%; max-width: 260px; }
  .case-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .orb, .hero__mouse::after { animation: none; }
}