:root {
    color-scheme: dark;
    --ink: #080a0c;
    --ink-soft: #0d1013;
    --panel: #121619;
    --panel-hover: #171c20;
    --line: rgba(255, 255, 255, .09);
    --line-strong: rgba(255, 255, 255, .16);
    --text: #f4f5f5;
    --muted: #92999d;
    --quiet: #626a6f;
    --orange: #ff6b2c;
    --orange-soft: rgba(255, 107, 44, .12);
    --red: #d93635;
    --green: #78d994;
    --radius: 18px;
    --shadow: 0 24px 70px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    color: var(--text);
    background:
        radial-gradient(circle at 78% -10%, rgba(217, 54, 53, .18), transparent 30%),
        linear-gradient(180deg, #0b0e10 0, var(--ink) 36%, #07090b 100%);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}
body::before {
    position: fixed;
    z-index: -1;
    inset: 0;
    opacity: .22;
    background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
    background-size: 48px 48px;
    content: "";
    pointer-events: none;
}
a { color: inherit; }
button, summary { font: inherit; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 14px; border-radius: 8px; color: #fff; background: var(--orange); transform: translateY(-150%); }
.skip-link:focus { transform: none; }

.site-shell {
    display: grid;
    width: min(1420px, calc(100% - 48px));
    margin: 0 auto;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 36px;
}
.page-main { min-width: 0; padding: 38px 0 44px; }
.site-hero {
    position: relative;
    display: grid;
    min-height: 205px;
    padding: 34px 38px;
    overflow: hidden;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 32px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: linear-gradient(130deg, rgba(25, 29, 32, .97), rgba(12, 15, 17, .98));
    box-shadow: var(--shadow);
}
.site-hero::after {
    position: absolute;
    right: -70px;
    bottom: -150px;
    width: 350px;
    height: 350px;
    border: 58px solid rgba(217, 54, 53, .10);
    border-radius: 50%;
    content: "";
}
.site-hero-copy { position: relative; z-index: 1; }
.site-eyebrow, .section-kicker, .eyebrow { display: block; color: var(--orange); font-size: .66rem; font-weight: 850; letter-spacing: .23em; }
.site-hero h1 { margin: 13px 0 14px; font-size: clamp(2.8rem, 6vw, 5.1rem); letter-spacing: .16em; line-height: .95; }
.hero-copy { max-width: 660px; margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.8; }
.hero-stamp { position: relative; z-index: 1; width: 112px; height: 112px; padding: 18px; border: 1px solid rgba(255,107,44,.35); border-radius: 50%; color: #ff9b6b; text-align: center; font-size: .62rem; font-weight: 800; letter-spacing: .12em; line-height: 1.6; transform: rotate(8deg); }
.hero-stamp b { display: block; margin: 3px 0; color: #fff; font-size: 1.3rem; letter-spacing: .06em; }

.channel-bar-shell { position: sticky; z-index: 40; top: 12px; margin: 18px 0 30px; padding: 7px; border: 1px solid var(--line); border-radius: 14px; background: rgba(10, 13, 15, .90); box-shadow: 0 14px 36px rgba(0,0,0,.28); backdrop-filter: blur(18px); }
.channel-nav { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.channel-nav::-webkit-scrollbar { display: none; }
.channel-link { position: relative; display: flex; min-width: max-content; min-height: 42px; padding: 0 17px; align-items: center; border-radius: 9px; color: #858e93; text-decoration: none; font-size: .8rem; font-weight: 700; transition: color .2s, background .2s, transform .2s; }
.channel-link:hover { color: #fff; background: rgba(255,255,255,.05); transform: translateY(-1px); }
.channel-link.active { color: #fff; background: var(--orange-soft); }
.channel-link.active::after { position: absolute; right: 16px; bottom: 5px; left: 16px; height: 2px; border-radius: 2px; background: var(--orange); content: ""; }

.contact-rail { min-width: 0; padding: 38px 0 44px; }
.club-info { position: sticky; top: 24px; padding: 23px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(150deg, rgba(22,27,30,.98), rgba(12,15,17,.98)); box-shadow: var(--shadow); }
.club-info::after { position: absolute; right: -42px; top: -55px; width: 130px; height: 130px; border: 25px solid rgba(255,107,44,.07); border-radius: 50%; content: ""; }
.contact-kicker { position: relative; z-index: 1; color: var(--orange); font-size: .62rem; font-weight: 850; letter-spacing: .2em; }
.club-name { position: relative; z-index: 1; display: block; margin: 12px 0 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); color: #fff; font-size: 1.05rem; font-weight: 800; }
.contact-list { display: grid; gap: 14px; }
.contact-item { display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 10px; }
.contact-icon { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 9px; color: #ff9b6b; background: var(--orange-soft); font-size: .72rem; font-weight: 900; }
.contact-copy { min-width: 0; }
.contact-label { display: block; color: var(--quiet); font-size: .62rem; }
.contact-value { display: block; margin-top: 4px; overflow-wrap: anywhere; color: #cdd1d3; font-size: .72rem; line-height: 1.6; }
.contact-value b { color: #ff9b6b; font-weight: 700; }
.club-qr-wrap { margin-top: 20px; padding: 10px; border-radius: 14px; background: #fff; }
.club-qr { display: block; width: 100%; height: auto; border-radius: 8px; }
.qr-caption { display: block; margin-top: 10px; color: var(--quiet); text-align: center; font-size: .62rem; line-height: 1.5; }

.home-channel-head, .section-head { display: flex; margin: 6px 2px 20px; align-items: flex-end; justify-content: space-between; gap: 28px; }
.home-channel-head h2, .section-head h2, .video-section-head h2 { margin: 8px 0 0; font-size: clamp(1.55rem, 3vw, 2.35rem); letter-spacing: .06em; }
.home-channel-head p, .section-head p { max-width: 560px; margin: 0; color: #7f888d; font-size: .82rem; line-height: 1.75; }
.channel-preview-grid { display: grid; margin-bottom: 48px; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; }
.channel-preview { display: flex; min-width: 0; min-height: 250px; padding: 24px; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(21,25,28,.97), rgba(11,14,16,.98)); transition: border-color .22s, transform .22s, background .22s; }
.channel-preview:hover { border-color: rgba(255,107,44,.28); background: linear-gradient(145deg, rgba(27,31,34,.98), rgba(12,15,17,.98)); transform: translateY(-3px); }
.channel-preview-head { display: flex; padding-bottom: 15px; align-items: center; justify-content: space-between; gap: 15px; border-bottom: 1px solid rgba(255,255,255,.06); }
.channel-preview-head h3 { margin: 0; font-size: 1.22rem; }
.channel-more { color: #ff9160; text-decoration: none; font-size: .71rem; font-weight: 750; }
.story-list { display: grid; margin-top: 5px; }
.story-row { display: grid; padding: 13px 0; grid-template-columns: 28px minmax(0,1fr); gap: 10px; border-bottom: 1px solid rgba(255,255,255,.055); text-decoration: none; }
.story-row:last-child { border-bottom: 0; }
.story-index { color: #dc6948; font: 700 .63rem monospace; }
.story-title { display: block; color: #dfe2e3; font-size: .87rem; font-weight: 700; line-height: 1.5; }
.story-excerpt { display: -webkit-box; margin-top: 4px; overflow: hidden; color: #717a7f; font-size: .73rem; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.video-channel-preview { justify-content: space-between; background: linear-gradient(135deg, rgba(255,107,44,.12), rgba(13,16,18,.98) 62%); }
.video-channel-preview p { margin: 15px 0 24px; color: var(--muted); font-size: .82rem; line-height: 1.75; }
.primary-link { display: inline-flex; width: max-content; min-height: 40px; padding: 0 15px; align-items: center; border-radius: 9px; color: #fff; background: linear-gradient(135deg, #ff762f, #d93635); text-decoration: none; font-size: .76rem; font-weight: 750; box-shadow: 0 10px 24px rgba(217,54,53,.18); transition: transform .2s, filter .2s; }
.primary-link:hover { filter: brightness(1.08); transform: translateY(-2px); }

.knowledge-modules { margin-bottom: 48px; }
.knowledge-section { padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, rgba(19,23,26,.97), rgba(11,14,16,.98)); box-shadow: var(--shadow); }
.section-description { max-width: 600px; margin: 0; color: #858e93; font-size: .84rem; line-height: 1.75; }
.knowledge-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); align-items: start; gap: 12px; }
.knowledge-card { scroll-margin-top: 90px; overflow: hidden; border: 1px solid rgba(255,255,255,.075); border-radius: 14px; background: rgba(255,255,255,.022); transition: border-color .2s, background .2s; }
.knowledge-card[open] { border-color: rgba(255,107,44,.23); background: rgba(255,255,255,.035); }
.knowledge-card-summary { display: flex; min-height: 76px; padding: 18px; align-items: center; gap: 12px; cursor: pointer; list-style: none; }
.knowledge-card-summary::-webkit-details-marker { display: none; }
.knowledge-card-summary h3 { flex: 1; margin: 0; color: #e8eaeb; font-size: .95rem; line-height: 1.55; }
.knowledge-index { display: grid; width: 32px; height: 32px; flex: 0 0 32px; place-items: center; border-radius: 9px; color: #ff7650; background: var(--orange-soft); font-size: .64rem; font-weight: 800; }
.knowledge-toggle { color: #697277; font-size: .68rem; }
.knowledge-toggle::before { content: "展开"; }
.knowledge-card[open] .knowledge-toggle::before { content: "收起"; }
.knowledge-body { padding: 0 18px 21px 62px; }
.knowledge-cover { width: 100%; max-height: 330px; margin-bottom: 17px; border-radius: 10px; object-fit: cover; }
.knowledge-summary { margin: 0 0 11px; color: #d2d5d7; font-size: .84rem; font-weight: 650; line-height: 1.7; }
.knowledge-content { margin: 0; color: #9da3a7; font-size: .84rem; line-height: 1.95; white-space: pre-line; }
.knowledge-disclaimer, .purchase-note { margin: 18px 0 0; padding: 14px 16px; border-left: 3px solid var(--orange); border-radius: 0 9px 9px 0; color: #7b8489; background: rgba(255,107,44,.055); font-size: .74rem; line-height: 1.75; }
.knowledge-empty, .empty { padding: 42px 24px; border: 1px dashed rgba(255,255,255,.11); border-radius: 14px; color: #697277; text-align: center; font-size: .8rem; }

.video-section { margin-bottom: 48px; }
.video-section-head { margin-bottom: 20px; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.video-item { overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); transition: border-color .2s, transform .2s; }
.video-item:hover { border-color: rgba(255,107,44,.3); transform: translateY(-3px); }
.video-thumb { aspect-ratio: 16/9; background: #000; }
.video-thumb iframe { display: block; width: 100%; height: 100%; border: 0; }
.video-title { min-height: 54px; padding: 15px 17px; color: #dfe2e3; font-size: .84rem; font-weight: 700; line-height: 1.5; }

.breadcrumb { display: flex; margin: 2px 2px 20px; align-items: center; flex-wrap: wrap; gap: 8px; color: #667075; font-size: .72rem; }
.breadcrumb a { color: #a9afb2; text-decoration: none; }
.breadcrumb a:hover { color: var(--orange); }
.hero { margin-bottom: 30px; padding: 4px 2px 12px; }
.hero h1 { margin: 11px 0 14px; font-size: clamp(2.4rem, 6vw, 4.8rem); letter-spacing: .08em; line-height: 1.06; }
.hero p { max-width: 740px; margin: 0; color: var(--muted); font-size: .95rem; line-height: 1.85; }
.gym-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.gym-card { position: relative; display: flex; min-height: 330px; padding: 28px; overflow: hidden; flex-direction: column; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg,rgba(24,28,31,.98),rgba(11,14,16,.98)); text-decoration: none; box-shadow: var(--shadow); transition: border-color .24s, transform .24s; }
.gym-card:hover { border-color: rgba(255,118,47,.38); transform: translateY(-4px); }
.gym-card-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .18; transition: opacity .3s, transform .5s; }
.gym-card:hover .gym-card-photo { opacity: .25; transform: scale(1.03); }
.gym-card-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,10,12,.97), rgba(8,10,12,.7)); }
.gym-card > :not(.gym-card-photo,.gym-card-shade) { position: relative; z-index: 1; }
.gym-status { display: inline-flex; width: max-content; min-height: 27px; padding: 0 10px; align-items: center; border-radius: 20px; color: var(--green); background: rgba(69,188,98,.1); font-size: .65rem; font-weight: 800; }
.gym-card h2 { margin: auto 0 12px; padding-top: 45px; font-size: 2rem; letter-spacing: .07em; }
.gym-card p { max-width: 560px; margin: 0; color: #939a9e; font-size: .84rem; line-height: 1.75; }
.tag-row { display: flex; margin-top: 18px; flex-wrap: wrap; gap: 7px; }
.tag { padding: 6px 9px; border: 1px solid rgba(255,255,255,.08); border-radius: 7px; color: #b0b5b8; background: rgba(255,255,255,.035); font-size: .65rem; }
.card-link { margin-top: 22px; color: #ff9b68; font-size: .73rem; font-weight: 750; }

.gym-hero { position: relative; min-height: 325px; padding: 38px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(125deg,rgba(31,35,38,.98),rgba(12,15,17,.98)); box-shadow: var(--shadow); }
.gym-hero::after { position: absolute; width: 340px; height: 340px; right: -130px; top: -150px; border: 62px solid rgba(232,67,67,.08); border-radius: 50%; content: ""; }
.gym-hero > * { position: relative; z-index: 1; }
.gym-hero h1 { max-width: 720px; margin: 38px 0 15px; font-size: clamp(2.35rem,6vw,4.7rem); letter-spacing: .07em; }
.gym-intro { max-width: 700px; margin: 0; color: #a5abad; font-size: .95rem; line-height: 1.9; }
.gym-meta { display: grid; margin-top: 30px; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; color: #70797e; font-size: .7rem; }
.gym-meta span { padding-top: 13px; border-top: 1px solid rgba(255,255,255,.08); }
.gym-meta b { display: block; margin-top: 6px; color: #d8dcde; font-size: .78rem; line-height: 1.55; }
.gym-section-nav { position: sticky; z-index: 30; top: 77px; display: flex; margin: 16px 0 0; padding: 7px; gap: 5px; border: 1px solid var(--line); border-radius: 12px; background: rgba(12,15,17,.91); backdrop-filter: blur(16px); }
.gym-section-nav a { display: flex; min-height: 36px; padding: 0 13px; align-items: center; border-radius: 8px; color: #8e969a; text-decoration: none; font-size: .72rem; font-weight: 700; }
.gym-section-nav a:hover { color: #fff; background: var(--orange-soft); }
.content-section { scroll-margin-top: 130px; margin-top: 16px; padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(145deg,rgba(20,24,27,.97),rgba(11,14,16,.98)); }
.schedule-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 9px; }
.schedule-day { min-height: 145px; padding: 15px; border: 1px solid rgba(255,255,255,.065); border-radius: 12px; background: rgba(255,255,255,.022); }
.schedule-day h3 { margin: 0 0 10px; color: #ff8c5c; font-size: .76rem; }
.schedule-item { padding: 10px 0; border-top: 1px solid rgba(255,255,255,.055); }
.schedule-item:first-of-type { border-top: 0; }
.schedule-time { color: #eff1f2; font: 700 .73rem monospace; }
.schedule-name { display: block; margin-top: 5px; color: #bec3c5; font-size: .73rem; }
.schedule-coach { display: block; margin-top: 4px; color: #697277; font-size: .63rem; }
.coach-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 11px; }
.coach-card { padding: 18px; border: 1px solid rgba(255,255,255,.07); border-radius: 14px; background: rgba(255,255,255,.022); transition: border-color .2s, transform .2s; }
.coach-card:hover { border-color: rgba(255,107,44,.25); transform: translateY(-2px); }
.coach-head { display: flex; align-items: center; gap: 13px; }
.coach-avatar,.coach-avatar-fallback { width: 58px; height: 58px; flex: 0 0 58px; border-radius: 15px; object-fit: cover; background: linear-gradient(145deg,#e84343,#66202a); }
.coach-avatar-fallback { display: grid; place-items: center; color: #fff; font-size: 1.1rem; font-weight: 850; }
.coach-card h3 { margin: 0; font-size: .95rem; }
.coach-card p { margin: 7px 0 0; color: #818a8f; font-size: .71rem; line-height: 1.65; }
.coach-projects { display: flex; margin-top: 14px; flex-wrap: wrap; gap: 6px; }
.price-groups { display: grid; gap: 24px; }
.price-category-head { display: flex; margin-bottom: 12px; align-items: baseline; gap: 12px; }
.price-category-head h3 { margin: 0; font-size: .95rem; }
.price-category-head span { color: #697277; font-size: .68rem; }
.price-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.price-card { display: flex; min-height: 156px; padding: 17px; flex-direction: column; border: 1px solid rgba(255,255,255,.065); border-radius: 13px; background: rgba(255,255,255,.022); transition: border-color .2s, background .2s; }
.price-card:hover { border-color: rgba(255,107,44,.26); background: rgba(255,107,44,.035); }
.price-name { color: #dde0e2; font-size: .8rem; font-weight: 750; line-height: 1.5; }
.price-value { margin: 14px 0 10px; color: #ff8651; font-size: 1.4rem; font-weight: 850; }
.price-value small { margin-right: 2px; font-size: .68rem; }
.price-benefit { margin-top: auto; color: #747d82; font-size: .66rem; line-height: 1.55; }

.baidu-ad-shell { margin: 38px 0 0; padding-top: 24px; border-top: 1px solid var(--line); }
.ad-label { display: block; margin-bottom: 9px; color: #4f575c; font-size: .58rem; letter-spacing: .18em; }
.baidu-ad-slot { min-height: 200px; padding: 10px; overflow: hidden; border: 1px solid rgba(255,255,255,.055); border-radius: 14px; background: rgba(255,255,255,.025); text-align: center; }
.ad-state { padding: 28px 10px; color: #596166; font-size: .7rem; }
.site-footer { display: flex; padding: 28px 2px 8px; align-items: center; justify-content: space-between; gap: 18px; color: #555e63; font-size: .68rem; }
.icp { color: #737b7f; text-decoration: none; }
.icp:hover { color: #aab0b3; }

@media (max-width: 1180px) {
    .site-shell { grid-template-columns: minmax(0,1fr) 235px; gap: 24px; }
    .video-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .schedule-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
    .price-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 900px) {
    .site-shell { display: block; width: min(100% - 32px, 760px); }
    .page-main { padding-bottom: 20px; }
    .contact-rail { padding: 0 0 34px; }
    .club-info { position: static; display: grid; grid-template-columns: minmax(0,1fr) 150px; gap: 0 24px; }
    .contact-kicker,.club-name,.contact-list { grid-column: 1; }
    .club-qr-wrap { margin: 0; grid-column: 2; grid-row: 1/4; align-self: center; }
    .qr-caption { grid-column: 2; }
    .coach-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 640px) {
    .site-shell { width: calc(100% - 24px); }
    .page-main { padding-top: 12px; }
    .site-hero { min-height: 0; padding: 27px 22px; grid-template-columns: 1fr; }
    .site-hero h1 { font-size: 2.75rem; letter-spacing: .12em; }
    .hero-copy { font-size: .84rem; }
    .hero-stamp { display: none; }
    .channel-bar-shell { top: 6px; margin-right: -12px; margin-left: -12px; border-right: 0; border-left: 0; border-radius: 0; }
    .channel-link { padding: 0 13px; }
    .home-channel-head,.section-head { align-items: flex-start; flex-direction: column; gap: 8px; }
    .channel-preview-grid,.knowledge-grid,.gym-grid,.coach-grid,.price-grid { grid-template-columns: 1fr; }
    .channel-preview { min-height: 0; }
    .knowledge-section { padding: 20px 14px; }
    .knowledge-body { padding-left: 18px; }
    .video-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.65rem; }
    .gym-card { min-height: 300px; padding: 23px; }
    .gym-hero { min-height: 0; padding: 26px 20px; }
    .gym-hero h1 { margin-top: 30px; font-size: 2.7rem; }
    .gym-meta { grid-template-columns: 1fr; }
    .gym-section-nav { top: 64px; overflow-x: auto; }
    .gym-section-nav a { min-width: max-content; }
    .content-section { padding: 23px 15px; }
    .schedule-grid { display: flex; margin-right: -15px; overflow-x: auto; }
    .schedule-day { min-width: 185px; }
    .club-info { display: block; padding: 20px; }
    .club-qr-wrap { width: 150px; margin: 20px auto 0; }
    .site-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}