@charset "UTF-8";
/* =========================================================
   TEMPLATE-028 体育科技站 · 深空蓝 × 亮青（Navy × Cyan）
   排版语言：悬浮胶囊导航 / 居中沉浸 hero / Bento 便当网格
   50/50 分屏贴边 / 玻璃拟态卡片 / 深空资讯区 / masonry 案例
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
    --s28-navy: #0A2540;
    --s28-deep: #061829;
    --s28-cyan: #22D3EE;
    --s28-cyan-deep: #0891B2;
    --s28-ice: #E0F2FE;
    --s28-mist: #F1F7FB;
    --s28-card: #FFFFFF;
    --s28-text: #33475B;
    --s28-muted: #6B8599;
    --s28-line: #DCE9F2;
    --s28-radius: 20px;
    --s28-radius-sm: 12px;
    --s28-glass: rgba(255, 255, 255, .07);
    --s28-glass-line: rgba(255, 255, 255, .14);
    --s28-shadow: 0 18px 50px rgba(10, 37, 64, .12);
    --s28-shadow-sm: 0 8px 22px rgba(10, 37, 64, .09);
    --s28-grad: linear-gradient(135deg, #0A2540 0%, #0E3A5C 100%);
    --s28-grad-cyan: linear-gradient(120deg, #22D3EE 0%, #67E8F9 100%);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--s28-text);
    background: var(--s28-mist);
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--s28-cyan-deep); }
ul, ol { list-style: none; }
button { font: inherit; border: 0; background: none; cursor: pointer; color: inherit; }
strong, b { color: var(--s28-navy); }
em, i { font-style: normal; }

.s28-wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.s28-narrow { max-width: 920px; }

.s28-skip {
    position: absolute; left: 12px; top: -48px; z-index: 400;
    background: var(--s28-navy); color: #fff;
    padding: 10px 18px; border-radius: 999px; font-size: 14px;
    transition: top .2s ease;
}
.s28-skip:focus { top: 12px; color: #fff; }

/* ---------- 悬浮胶囊导航 ---------- */
.s28-top {
    position: sticky; top: 0; z-index: 120;
    padding: 14px 20px 6px;
    background: linear-gradient(to bottom, rgba(241, 247, 251, .95) 62%, rgba(241, 247, 251, 0));
    pointer-events: none;
}
.s28-pill-wrap { max-width: 1200px; margin: 0 auto; pointer-events: auto; }
.s28-pill {
    display: flex; align-items: center; gap: 20px;
    background: rgba(255, 255, 255, .82);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: 999px;
    padding: 10px 12px 10px 22px;
    box-shadow: var(--s28-shadow-sm);
}
.s28-logo { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.s28-logo-mark {
    width: 40px; height: 40px; border-radius: 13px;
    background: var(--s28-grad-cyan);
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 16px rgba(34, 211, 238, .4);
}
.s28-logo strong { font-size: 18px; font-weight: 800; color: var(--s28-navy); letter-spacing: .5px; }
.s28-nav { flex: 1; min-width: 0; }
.s28-menu { display: flex; justify-content: center; flex-wrap: wrap; gap: 2px; }
.s28-menu > li { position: relative; }
.s28-menu > li > a {
    display: block; padding: 9px 15px;
    border-radius: 999px;
    color: var(--s28-text); font-size: 14.5px; font-weight: 600;
    transition: all .2s ease;
}
.s28-menu > li > a:hover { color: var(--s28-cyan-deep); background: var(--s28-ice); }
.s28-menu > li.is-on > a {
    background: var(--s28-navy); color: #fff;
}
.s28-menu > li.has-sub > a::before {
    content: ""; display: inline-block; vertical-align: 2px;
    margin-left: 5px; border: 3.5px solid transparent; border-top-color: currentColor;
}
.s28-drop {
    position: absolute; top: calc(100% + 10px); left: 50%;
    transform: translateX(-50%) translateY(6px);
    min-width: 186px;
    background: rgba(10, 37, 64, .92);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 16px; padding: 8px;
    opacity: 0; visibility: hidden;
    transition: all .22s ease;
    box-shadow: 0 18px 44px rgba(6, 24, 41, .35);
}
.s28-menu > li:hover .s28-drop,
.s28-menu > li:focus-within .s28-drop {
    opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.s28-drop a {
    display: block; padding: 9px 14px; border-radius: 10px;
    font-size: 13.5px; color: rgba(255, 255, 255, .85); white-space: nowrap;
}
.s28-drop a:hover { background: rgba(34, 211, 238, .16); color: var(--s28-cyan); }
.s28-tools { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.s28-search-toggle, .s28-burger {
    width: 40px; height: 40px; border-radius: 50%;
    border: 1px solid var(--s28-line);
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--s28-navy); background: #fff;
    transition: all .2s ease;
}
.s28-search-toggle:hover { border-color: var(--s28-cyan); color: var(--s28-cyan-deep); }
.s28-cta {
    display: inline-flex; align-items: center;
    height: 40px; padding: 0 22px;
    border-radius: 999px;
    background: var(--s28-grad-cyan); color: var(--s28-deep);
    font-size: 14px; font-weight: 800;
    box-shadow: 0 6px 16px rgba(34, 211, 238, .35);
    transition: transform .2s ease, box-shadow .2s ease;
}
.s28-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(34, 211, 238, .45); color: var(--s28-deep); }
.s28-burger { display: none; flex-direction: column; gap: 4px; }
.s28-burger i { width: 16px; height: 2px; border-radius: 2px; background: currentColor; }
.s28-searchbar { margin-top: 10px; }
.s28-searchbar[hidden] { display: none; }
.s28-searchbar form { display: flex; gap: 10px; }
.s28-searchbar input {
    flex: 1; height: 48px; border-radius: 999px;
    border: 2px solid var(--s28-line); padding: 0 22px;
    font-size: 15px; color: var(--s28-navy); background: #fff;
    outline: none; transition: border-color .2s ease;
}
.s28-searchbar input:focus { border-color: var(--s28-cyan); }
.s28-searchbar button {
    height: 48px; padding: 0 30px; border-radius: 999px;
    background: var(--s28-grad); color: #fff; font-weight: 700;
}

/* 移动抽屉 */
.s28-nav-overlay {
    position: fixed; inset: 0; z-index: 300;
    background: rgba(6, 24, 41, .55); backdrop-filter: blur(2px);
}
.s28-nav-overlay[hidden] { display: none; }
.s28-drawer {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 310;
    width: min(320px, 86vw);
    background: var(--s28-deep);
    display: flex; flex-direction: column;
    transform: translateX(105%);
    transition: transform .28s ease;
    box-shadow: -18px 0 50px rgba(6, 24, 41, .4);
}
.s28-drawer.is-open { transform: translateX(0); }
.s28-drawer-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 20px; color: #fff; font-weight: 800;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.s28-drawer-head button {
    width: 38px; height: 38px; border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .18);
    color: rgba(255, 255, 255, .8); font-size: 20px;
}
.s28-drawer-nav { flex: 1; overflow-y: auto; padding: 12px; }
.s28-dlist > li { border-bottom: 1px solid rgba(255, 255, 255, .07); }
.s28-dlist > li > a, .s28-ditem > a {
    display: block; padding: 14px 12px;
    color: rgba(255, 255, 255, .88); font-weight: 600;
}
.s28-ditem { position: relative; }
.s28-ditem > a { padding-right: 54px; }
.s28-dtoggle {
    position: absolute; right: 8px; top: 9px;
    width: 34px; height: 34px; border-radius: 9px;
    border: 1px solid rgba(255, 255, 255, .16);
}
.s28-dtoggle::before {
    content: ""; position: absolute; left: 50%; top: 50%;
    width: 8px; height: 8px;
    border-right: 2px solid rgba(255, 255, 255, .6);
    border-bottom: 2px solid rgba(255, 255, 255, .6);
    transform: translate(-50%, -60%) rotate(45deg);
    transition: transform .2s ease;
}
.s28-dtoggle.is-open::before { transform: translate(-50%, -35%) rotate(225deg); }
.s28-dsub { display: none; padding: 0 12px 12px 24px; }
.s28-dsub.is-open { display: block; }
.s28-dsub a {
    display: block; padding: 9px 10px; border-radius: 8px;
    font-size: 14px; color: rgba(255, 255, 255, .7);
}
.s28-dsub a:hover { background: rgba(34, 211, 238, .14); color: var(--s28-cyan); }
.s28-drawer-tel {
    display: block; margin: 16px; padding: 14px;
    text-align: center; border-radius: 14px;
    background: var(--s28-grad-cyan); color: var(--s28-deep); font-weight: 800;
}

/* ---------- 光晕装饰 ---------- */
.s28-glow {
    position: absolute; border-radius: 50%;
    pointer-events: none; filter: blur(8px);
}
.s28-glow-a {
    width: 460px; height: 460px; right: -140px; top: -160px;
    background: radial-gradient(circle, rgba(34, 211, 238, .38), transparent 65%);
}
.s28-glow-b {
    width: 380px; height: 380px; left: -130px; bottom: -110px;
    background: radial-gradient(circle, rgba(103, 232, 249, .22), transparent 65%);
}
.s28-glow-c {
    width: 520px; height: 520px; right: -180px; bottom: -220px;
    background: radial-gradient(circle, rgba(34, 211, 238, .2), transparent 65%);
}
.s28-grid-lines {
    position: absolute; inset: 0; pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 75%);
    mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 75%);
}

/* ---------- 深空居中 hero ---------- */
.s28-hero {
    position: relative; overflow: hidden;
    background: var(--s28-grad);
    color: #fff;
    text-align: center;
    padding: 88px 0 76px;
}
.s28-hero::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 70px;
    background: var(--s28-mist);
    clip-path: ellipse(60% 100% at 50% 100%);
}
.s28-hero-in { position: relative; z-index: 1; }
.s28-hero-kicker {
    display: inline-block;
    font-size: 12.5px; font-weight: 800; letter-spacing: 4px;
    color: var(--s28-cyan);
    border: 1px solid rgba(34, 211, 238, .4);
    background: rgba(34, 211, 238, .08);
    border-radius: 999px; padding: 7px 20px;
    margin-bottom: 26px;
}
.s28-hero h1 {
    font-size: clamp(30px, 4.6vw, 54px);
    font-weight: 900; line-height: 1.26; letter-spacing: 1px;
    max-width: 16em; margin: 0 auto;
}
.s28-hero h1 em {
    font-style: normal;
    background: var(--s28-grad-cyan);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.s28-hero-sub {
    margin: 20px auto 0; max-width: 600px;
    font-size: 16.5px; color: rgba(255, 255, 255, .78);
}
.s28-hero-cta {
    display: flex; justify-content: center; flex-wrap: wrap; gap: 14px;
    margin-top: 34px;
}
.s28-hero-stats {
    display: flex; justify-content: center; flex-wrap: wrap; gap: 14px;
    margin-top: 56px;
}
.s28-hstat {
    flex: 1 1 170px; max-width: 230px;
    background: var(--s28-glass);
    border: 1px solid var(--s28-glass-line);
    border-radius: var(--s28-radius);
    padding: 20px 18px;
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.s28-hstat dt { font-size: 32px; font-weight: 900; color: var(--s28-cyan); line-height: 1.2; }
.s28-hstat dt i { font-size: 15px; font-weight: 700; margin-left: 2px; }
.s28-hstat dd { font-size: 13.5px; color: rgba(255, 255, 255, .72); margin-top: 3px; }

/* ---------- 按钮 ---------- */
.s28-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 50px; padding: 0 32px;
    border-radius: 999px;
    font-size: 15.5px; font-weight: 700; letter-spacing: .5px;
    transition: all .22s ease;
    border: 2px solid transparent;
}
.s28-btn-sm { height: 42px; padding: 0 24px; font-size: 14px; }
.s28-btn-cyan {
    background: var(--s28-grad-cyan); color: var(--s28-deep);
    box-shadow: 0 10px 26px rgba(34, 211, 238, .38);
}
.s28-btn-cyan:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(34, 211, 238, .48); color: var(--s28-deep); }
.s28-btn-navy {
    background: var(--s28-grad); color: #fff;
    box-shadow: var(--s28-shadow-sm);
}
.s28-btn-navy:hover { transform: translateY(-2px); color: #fff; box-shadow: var(--s28-shadow); }
.s28-btn-ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.s28-btn-ghost:hover { background: rgba(255, 255, 255, .12); color: #fff; }
.s28-btn-line { border-color: var(--s28-navy); color: var(--s28-navy); background: transparent; }
.s28-btn-line:hover { background: var(--s28-navy); color: #fff; }

/* ---------- 常规广告位 ---------- */
.s28-ad { min-height: 90px; margin: 26px auto; max-width: 1200px; padding: 0 20px; }
.s28-ad:empty { display: none; }

/* ---------- Section 通用 ---------- */
.s28-sec { padding: 76px 0; }
.s28-sec-line { border-top: 1px solid var(--s28-line); }
.s28-sec-head { text-align: center; max-width: 640px; margin: 0 auto 46px; }
.s28-sec-head-row {
    max-width: none; margin-bottom: 38px;
    display: flex; align-items: flex-end; justify-content: space-between;
    text-align: left; gap: 20px;
}
.s28-sec-tag {
    font-size: 12px; font-weight: 800; letter-spacing: 3.5px;
    color: var(--s28-cyan-deep); text-transform: uppercase;
    margin-bottom: 8px;
}
.s28-sec-head h2 {
    font-size: clamp(24px, 3vw, 34px); font-weight: 900;
    color: var(--s28-navy); letter-spacing: .5px;
}
.s28-sec-desc { margin-top: 12px; color: var(--s28-muted); font-size: 15.5px; }
.s28-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-weight: 700; color: var(--s28-cyan); white-space: nowrap;
}
.s28-link svg { transition: transform .2s ease; }
.s28-link:hover svg { transform: translateX(4px); }

/* ---------- Bento 便当网格 ---------- */
.s28-bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 200px;
    gap: 18px;
}
.s28-bcell {
    position: relative;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    overflow: hidden;
    padding: 26px 28px;
    transition: transform .25s ease, box-shadow .25s ease;
}
.s28-bcell:hover { transform: translateY(-5px); box-shadow: var(--s28-shadow); }
.s28-bcell-main {
    grid-column: span 2; grid-row: span 2;
    display: grid; grid-template-rows: 1fr auto;
    padding: 0;
}
.s28-bcell-main figure { overflow: hidden; margin: 0; }
.s28-bcell-main img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.s28-bcell-main:hover img { transform: scale(1.05); }
.s28-bcell-txt { padding: 22px 28px 24px; background: var(--s28-card); }
.s28-bcell-no {
    font-size: 15px; font-weight: 900; letter-spacing: 2px;
    color: var(--s28-cyan-deep);
}
.s28-bcell-txt h3 { font-size: 23px; font-weight: 900; color: var(--s28-navy); margin: 6px 0 8px; }
.s28-bcell-txt > p { font-size: 14.5px; color: var(--s28-muted); }
.s28-bcell-link {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 14px;
    font-size: 14px; font-weight: 800; color: var(--s28-cyan-deep);
}
.s28-bico {
    width: 52px; height: 52px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 15px;
    background: var(--s28-ice); color: var(--s28-cyan-deep);
    margin-bottom: 16px;
}
.s28-bcell-icon h3 { font-size: 19px; font-weight: 800; color: var(--s28-navy); margin-bottom: 6px; }
.s28-bcell-icon > p { font-size: 13.5px; color: var(--s28-muted); }
.s28-bcell-data {
    background: var(--s28-grad); color: #fff;
    display: flex; flex-direction: column; justify-content: center;
}
.s28-bcell-data strong { font-size: 38px; font-weight: 900; color: var(--s28-cyan); line-height: 1.1; }
.s28-bcell-data span { font-size: 14.5px; font-weight: 700; margin-top: 4px; }
.s28-bcell-data em { font-size: 12.5px; color: rgba(255, 255, 255, .6); margin-top: 2px; }
.s28-bcell-data .s28-bcell-link { color: var(--s28-cyan); }
.s28-bcell-pic { padding: 0; }
.s28-bcell-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.s28-bcell-pic:hover img { transform: scale(1.05); }
.s28-bcell-tag {
    position: absolute; left: 16px; bottom: 16px;
    background: rgba(6, 24, 41, .72); color: #fff;
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, .18);
    padding: 6px 16px; border-radius: 999px;
    font-size: 12.5px; font-weight: 700;
}

/* ---------- 50/50 分屏贴边 ---------- */
.s28-split { background: #fff; }
.s28-split-row {
    display: grid; grid-template-columns: 1fr 1fr;
    align-items: center;
    min-height: 460px;
}
.s28-split-pic { height: 100%; min-height: 420px; overflow: hidden; }
.s28-split-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.s28-split-row:hover .s28-split-pic img { transform: scale(1.04); }
.s28-split-txt { padding: clamp(40px, 6vw, 96px); }
.s28-split-txt h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 900; color: var(--s28-navy); margin-bottom: 14px; }
.s28-split-txt > p { color: var(--s28-muted); font-size: 15.5px; }
.s28-split-rev .s28-split-pic { order: 2; }
.s28-split-rev .s28-split-txt { order: 1; }
.s28-tick { margin-top: 20px; display: grid; gap: 11px; }
.s28-tick li {
    position: relative; padding-left: 30px;
    font-size: 15px; font-weight: 600; color: var(--s28-text);
}
.s28-tick li::before {
    content: ""; position: absolute; left: 0; top: 4px;
    width: 19px; height: 19px; border-radius: 50%;
    background: var(--s28-ice);
    border: 2px solid var(--s28-cyan);
}
.s28-tick li::after {
    content: ""; position: absolute; left: 5px; top: 9px;
    width: 8px; height: 4px;
    border-left: 2px solid var(--s28-cyan-deep);
    border-bottom: 2px solid var(--s28-cyan-deep);
    transform: rotate(-45deg);
}
.s28-split-txt .s28-btn { margin-top: 26px; }

/* ---------- 深空资讯区（玻璃卡） ---------- */
.s28-dark {
    position: relative; overflow: hidden;
    background: var(--s28-deep);
    color: #fff;
}
.s28-dark .s28-sec-head h2 { color: #fff; }
.s28-dark .s28-sec-desc { color: rgba(255, 255, 255, .6); }
.s28-gcard-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    position: relative;
}
.s28-gcard {
    background: var(--s28-glass);
    border: 1px solid var(--s28-glass-line);
    border-radius: var(--s28-radius);
    overflow: hidden;
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.s28-gcard:hover {
    transform: translateY(-6px);
    border-color: rgba(34, 211, 238, .45);
    box-shadow: 0 18px 44px rgba(34, 211, 238, .14);
}
.s28-gcard-pic { position: relative; display: block; }
.s28-gcard-pic::before {
    content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
    background: var(--s28-grad-cyan);
    z-index: 1;
}
.s28-gcard-pic img { width: 100%; aspect-ratio: 480/280; object-fit: cover; }
.s28-gcard-ph {
    display: flex; align-items: center; justify-content: center;
    aspect-ratio: 480/280;
    background: var(--s28-grad); color: rgba(255, 255, 255, .7);
    font-weight: 900; letter-spacing: 5px; font-size: 18px;
}
.s28-gcard-body { padding: 18px 22px 20px; }
.s28-gcard-meta {
    display: flex; align-items: center; gap: 12px;
    font-size: 12.5px; color: rgba(255, 255, 255, .55);
}
.s28-gcard-cat {
    color: var(--s28-deep); font-weight: 800;
    background: var(--s28-cyan);
    padding: 2px 11px; border-radius: 999px;
}
.s28-gcard-title {
    margin-top: 10px;
    font-size: 16.5px; font-weight: 800; line-height: 1.55; color: #fff;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.s28-gcard-title a:hover { color: var(--s28-cyan); }
.s28-gcard-views { margin-top: 10px; font-size: 12.5px; color: rgba(255, 255, 255, .45); }

/* ---------- masonry 案例（两列错位） ---------- */
.s28-masonry {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 24px; align-items: start;
}
.s28-mas {
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
}
.s28-mas:hover { transform: translateY(-5px); box-shadow: var(--s28-shadow); }
.s28-masonry > .s28-mas:nth-child(even) { transform: translateY(34px); }
.s28-masonry > .s28-mas:nth-child(even):hover { transform: translateY(29px); }
.s28-mas-pic { display: block; }
.s28-mas-pic img { width: 100%; object-fit: cover; }
.s28-mas:not(.s28-mas-tall) .s28-mas-pic img { aspect-ratio: 600/440; }
.s28-mas-tall .s28-mas-pic img { aspect-ratio: 600/760; }
.s28-mas-body { padding: 20px 24px 22px; }
.s28-mas-tag {
    display: inline-block; font-size: 12px; font-weight: 800;
    color: var(--s28-cyan-deep);
    background: var(--s28-ice);
    padding: 3px 13px; border-radius: 999px; margin-bottom: 9px;
}
.s28-mas-body h3 { font-size: 17.5px; font-weight: 800; color: var(--s28-navy); line-height: 1.5; }
.s28-mas-body h3 a:hover { color: var(--s28-cyan-deep); }

/* ---------- 关于（左图右文玻璃卡） ---------- */
.s28-about-wrap { background: var(--s28-card); }
.s28-about {
    display: grid; grid-template-columns: 5fr 6fr;
    gap: clamp(28px, 5vw, 60px); align-items: center;
    background: var(--s28-mist);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: clamp(24px, 4vw, 44px);
}
.s28-about-pic {
    position: relative;
    border-radius: var(--s28-radius-sm); overflow: hidden;
    box-shadow: var(--s28-shadow-sm);
}
.s28-about-pic img { width: 100%; aspect-ratio: 560/420; object-fit: cover; }
.s28-about-badge {
    position: absolute; right: 16px; bottom: 16px;
    display: flex; align-items: baseline; gap: 3px;
    background: var(--s28-grad-cyan); color: var(--s28-deep);
    border-radius: 16px; padding: 10px 18px;
    box-shadow: 0 10px 24px rgba(34, 211, 238, .4);
}
.s28-about-badge strong { font-size: 30px; font-weight: 900; color: var(--s28-deep); }
.s28-about-badge span { font-size: 13px; font-weight: 700; }
.s28-about-txt h2 { font-size: clamp(23px, 2.8vw, 30px); font-weight: 900; color: var(--s28-navy); margin-bottom: 14px; }
.s28-about-txt > p { color: var(--s28-muted); font-size: 15.5px; }
.s28-about-act { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

/* ---------- 标签精选条 / 胶囊 ---------- */
.s28-tagstrip { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.s28-tagstrip h2 {
    font-size: 19px; font-weight: 900; color: var(--s28-navy);
    white-space: nowrap;
    padding-right: 24px; border-right: 3px solid var(--s28-cyan);
}
.s28-tagstrip .s28-chips { flex: 1; }
.s28-tagstrip-plain { flex-direction: column; align-items: flex-start; gap: 18px; }
.s28-tagstrip-plain h2 { border-right: 0; padding-right: 0; }
.s28-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.s28-chip {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 8px 18px;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: 999px;
    font-size: 14px; font-weight: 600; color: var(--s28-text);
    transition: all .2s ease;
}
.s28-chip:hover {
    background: var(--s28-navy); color: #fff;
    border-color: var(--s28-navy);
    transform: translateY(-2px);
    box-shadow: var(--s28-shadow-sm);
}
.s28-chip-num {
    font-size: 12px; font-weight: 700;
    color: var(--s28-cyan-deep);
    background: var(--s28-ice);
    border-radius: 999px; padding: 1px 8px;
}
.s28-chip:hover .s28-chip-num { color: var(--s28-cyan); background: rgba(34, 211, 238, .18); }
.s28-dark .s28-chip {
    background: var(--s28-glass);
    border-color: var(--s28-glass-line);
    color: rgba(255, 255, 255, .85);
}
.s28-dark .s28-chip:hover { background: var(--s28-cyan); color: var(--s28-deep); }
.s28-dark .s28-chip:hover .s28-chip-num { color: var(--s28-deep); background: rgba(6, 24, 41, .15); }

/* ---------- 深空题头（栏目/单页/专题共用） ---------- */
.s28-chead {
    position: relative; overflow: hidden;
    background: var(--s28-grad);
    color: #fff;
    padding: 56px 0 60px;
}
.s28-chead::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 46px;
    background: var(--s28-mist);
    clip-path: ellipse(60% 100% at 50% 100%);
}
.s28-chead-in { position: relative; z-index: 1; }
.s28-chead h1 {
    font-size: clamp(26px, 3.4vw, 40px); font-weight: 900;
    letter-spacing: 1px; margin-top: 12px;
}
.s28-chead-sub { margin-top: 10px; color: rgba(255, 255, 255, .78); font-size: 15px; max-width: 640px; }
.s28-crumb {
    display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
    font-size: 13.5px; color: var(--s28-muted);
}
.s28-crumb a { color: var(--s28-muted); }
.s28-crumb a:hover { color: var(--s28-cyan-deep); }
.s28-crumb span[aria-current] { color: var(--s28-navy); font-weight: 600; }
.s28-chead .s28-crumb a { color: rgba(255, 255, 255, .72); }
.s28-chead .s28-crumb a:hover { color: var(--s28-cyan); }
.s28-chead .s28-crumb span[aria-current] { color: var(--s28-cyan); }
.s28-crumb-plain { padding: 26px 0 0; }

.s28-substrip {
    background: var(--s28-card);
    border-bottom: 1px solid var(--s28-line);
    padding: 14px 0;
}
.s28-cat-intro {
    background: var(--s28-ice);
    border: 1px solid rgba(8, 145, 178, .22);
    border-radius: var(--s28-radius-sm);
    padding: 16px 20px;
    font-size: 14.5px; color: var(--s28-text);
    margin-bottom: 28px;
}
.s28-items { display: grid; gap: 16px; }

/* 极简横条目（青色细竖条 + 圆形小图） */
.s28-item {
    display: grid; grid-template-columns: 1fr 132px;
    gap: 22px; align-items: center;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-left: 4px solid var(--s28-cyan);
    border-radius: var(--s28-radius-sm);
    padding: 20px 24px;
    transition: transform .22s ease, box-shadow .22s ease;
}
.s28-item:hover { transform: translateY(-3px); box-shadow: var(--s28-shadow-sm); }
.s28-item-body { min-width: 0; }
.s28-item-title { font-size: 17px; font-weight: 800; color: var(--s28-navy); line-height: 1.5; }
.s28-item-title a:hover { color: var(--s28-cyan-deep); }
.s28-item-desc {
    margin-top: 6px; font-size: 13.5px; color: var(--s28-muted);
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.s28-item-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 10px; font-size: 12.5px; color: var(--s28-muted); }
.s28-item-cat {
    color: var(--s28-cyan-deep); font-weight: 700;
    background: var(--s28-ice);
    padding: 2px 11px; border-radius: 999px;
}
.s28-item-pic { display: block; border-radius: 50%; overflow: hidden; width: 132px; height: 132px; }
.s28-item-pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.s28-item:hover .s28-item-pic img { transform: scale(1.08); }
.s28-item-ph {
    display: flex; align-items: center; justify-content: center;
    width: 132px; height: 132px;
    background: var(--s28-grad); color: rgba(255, 255, 255, .8);
    font-weight: 900; letter-spacing: 2px;
}

/* Widget / 榜单 / 最新动态 */
.s28-cat-foot { margin-top: 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.s28-widget {
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 24px 24px 26px;
}
.s28-widget-cap {
    font-size: 16.5px; font-weight: 800; color: var(--s28-navy);
    padding-bottom: 12px; margin-bottom: 16px;
    border-bottom: 1px solid var(--s28-line);
    position: relative;
}
.s28-widget-cap::after {
    content: ""; position: absolute; left: 0; bottom: -1px;
    width: 46px; height: 2px; background: var(--s28-cyan);
}
.s28-widget-cap-gap { margin-top: 22px; }
.s28-rank-list { display: grid; gap: 2px; }
.s28-rank-item {
    display: flex; gap: 14px; align-items: flex-start;
    padding: 10px 8px; border-radius: var(--s28-radius-sm);
    transition: background .2s ease;
}
.s28-rank-item:hover { background: var(--s28-mist); }
.s28-rank-idx {
    flex: 0 0 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    background: var(--s28-grad-cyan);
    color: var(--s28-deep);
    font-weight: 900; font-size: 14px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(34, 211, 238, .35);
}
.s28-rank-item:nth-child(n+4) .s28-rank-idx {
    background: var(--s28-line); color: var(--s28-muted); box-shadow: none;
}
.s28-rank-body { min-width: 0; }
.s28-rank-title {
    font-size: 14.5px; font-weight: 700; color: var(--s28-navy); line-height: 1.5;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.s28-rank-title a:hover { color: var(--s28-cyan-deep); }
.s28-rank-meta { display: flex; gap: 12px; margin-top: 5px; font-size: 12px; color: var(--s28-muted); }
.s28-latest { display: grid; gap: 14px; }
.s28-latest-item { display: flex; gap: 12px; }
.s28-latest-dot {
    flex: 0 0 8px; height: 8px; margin-top: 8px;
    border-radius: 50%;
    background: var(--s28-cyan);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, .2);
}
.s28-latest-body { min-width: 0; }
.s28-latest-date { font-size: 12px; color: var(--s28-muted); }
.s28-latest-title { font-size: 14px; font-weight: 600; color: var(--s28-text); line-height: 1.5; }
.s28-latest-title a:hover { color: var(--s28-cyan-deep); }

/* 分页 / 空状态 */
.s28-pagination {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
    margin-top: 36px;
}
.s28-pagination a, .s28-pagination span, .s28-pagination strong {
    min-width: 42px; height: 42px;
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0 14px;
    border-radius: 12px;
    border: 1px solid var(--s28-line);
    background: var(--s28-card);
    font-size: 14px; font-weight: 700; color: var(--s28-text);
}
.s28-pagination .is-on, .s28-pagination strong {
    background: var(--s28-grad); color: #fff; border-color: var(--s28-navy);
}
.s28-pagination a:hover { border-color: var(--s28-cyan); color: var(--s28-cyan-deep); }
.s28-empty {
    text-align: center;
    background: var(--s28-card);
    border: 1px dashed var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 60px 24px;
    margin-top: 8px;
}
.s28-empty-mark {
    width: 64px; height: 64px; margin: 0 auto 18px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--s28-ice);
    color: var(--s28-cyan-deep);
    font-size: 28px; font-weight: 900;
}
.s28-empty h2 { font-size: 19px; font-weight: 800; color: var(--s28-navy); }
.s28-empty p { color: var(--s28-muted); font-size: 14.5px; margin: 8px 0 20px; }

/* ---------- 文章详情：双栏阅读 ---------- */
.s28-art {
    display: grid; grid-template-columns: minmax(0, 1fr) 320px;
    gap: 44px; align-items: start;
    max-width: 1200px; margin: 30px auto 0; padding: 0 20px;
}
.s28-art-main { min-width: 0; }
.s28-ahead { margin-bottom: 24px; }
.s28-ahead-cat {
    display: inline-block;
    background: var(--s28-ice); color: var(--s28-cyan-deep);
    font-size: 12.5px; font-weight: 800;
    padding: 4px 15px; border-radius: 999px;
    margin-bottom: 14px;
}
.s28-ahead-cat:hover { background: var(--s28-cyan); color: var(--s28-deep); }
.s28-ahead h1 {
    font-size: clamp(23px, 3vw, 31px); font-weight: 900;
    line-height: 1.45; color: var(--s28-navy);
}
.s28-ahead-meta {
    display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
    margin-top: 16px;
    font-size: 13.5px; color: var(--s28-muted);
}
.s28-ahead-meta i { width: 4px; height: 4px; border-radius: 50%; background: var(--s28-cyan); }
.s28-read-lead {
    margin: 4px 0 22px;
    background: var(--s28-ice);
    border-left: 4px solid var(--s28-cyan);
    border-radius: 0 var(--s28-radius-sm) var(--s28-radius-sm) 0;
    padding: 16px 22px;
    font-size: 15.5px; color: var(--s28-text);
}
.s28-read-cover { margin: 0 0 26px; }
.s28-read-cover img {
    width: 100%; aspect-ratio: 820/460; object-fit: cover;
    border-radius: var(--s28-radius-sm);
    box-shadow: var(--s28-shadow-sm);
}
.s28-read-cover figcaption {
    text-align: center; font-size: 13px; color: var(--s28-muted); margin-top: 10px;
}
.s28-read-body {
    font-size: 16.5px; line-height: 1.95; color: var(--s28-text);
    word-break: break-word;
}
.s28-read-body p { margin: 0 0 1.4em; }
.s28-read-body h2, .s28-read-body h3 {
    color: var(--s28-navy); font-weight: 800; margin: 1.6em 0 .8em;
    padding-left: 14px; border-left: 4px solid var(--s28-cyan);
}
.s28-read-body h2 { font-size: 22px; }
.s28-read-body h3 { font-size: 19px; }
.s28-read-body img { border-radius: var(--s28-radius-sm); margin: 1.4em auto; }
.s28-read-body blockquote {
    margin: 1.6em 0; padding: 16px 22px;
    background: var(--s28-ice);
    border-radius: var(--s28-radius-sm);
    color: var(--s28-text);
}
.s28-read-body ul, .s28-read-body ol { margin: 0 0 1.4em 1.6em; padding-left: 1em; }
.s28-read-body ul li { list-style: disc; margin-bottom: .5em; }
.s28-read-body ol li { list-style: decimal; margin-bottom: .5em; }
.s28-art-side { position: sticky; top: 92px; }
.s28-widget-sticky { box-shadow: var(--s28-shadow-sm); }
.s28-artinfo { display: grid; gap: 12px; }
.s28-artinfo > div {
    display: flex; justify-content: space-between; gap: 12px;
    font-size: 13.5px; padding-bottom: 10px;
    border-bottom: 1px dashed var(--s28-line);
}
.s28-artinfo dt { color: var(--s28-muted); flex: 0 0 auto; }
.s28-artinfo dd { color: var(--s28-navy); font-weight: 700; text-align: right; }
.s28-artinfo dd a:hover { color: var(--s28-cyan-deep); }
.s28-side-cta {
    margin-top: 22px;
    background: var(--s28-grad);
    border-radius: var(--s28-radius-sm);
    padding: 18px;
    text-align: center;
    color: #fff;
}
.s28-side-cta p { font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.s28-read-tags {
    margin-top: 34px; padding-top: 24px;
    border-top: 1px solid var(--s28-line);
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.s28-read-tags-cap { font-weight: 800; color: var(--s28-navy); font-size: 15px; }
.s28-sibling { margin-top: 44px; }
.s28-sibling-in { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.s28-sibling-item {
    display: block;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 18px 22px;
    transition: all .2s ease;
}
.s28-sibling-item:hover {
    border-color: var(--s28-cyan);
    box-shadow: var(--s28-shadow-sm);
    transform: translateY(-2px);
}
.s28-sibling-item em {
    display: block; font-size: 12px; font-weight: 800;
    color: var(--s28-cyan-deep); margin-bottom: 6px; letter-spacing: 1px;
}
.s28-sibling-item span {
    font-size: 14.5px; font-weight: 700; color: var(--s28-navy); line-height: 1.5;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.s28-sibling-down { text-align: right; }
.s28-rel { margin-top: 56px; }

/* ---------- 沉浸式图集 ---------- */
.s28-gal {
    background: var(--s28-deep);
    color: #fff;
    padding-bottom: 70px;
}
.s28-gal-head {
    padding-top: 44px; padding-bottom: 30px;
}
.s28-gal-head .s28-crumb a { color: rgba(255, 255, 255, .6); }
.s28-gal-head .s28-crumb a:hover { color: var(--s28-cyan); }
.s28-gal-head .s28-crumb span[aria-current] { color: var(--s28-cyan); }
.s28-gal-head h1 { font-size: clamp(22px, 3vw, 30px); font-weight: 900; margin-top: 12px; }
.s28-gal-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.s28-gal-meta span { background: var(--s28-glass); border: 1px solid var(--s28-glass-line); border-radius: 999px; padding: 4px 16px; }
.s28-gal-stage {
    position: relative;
    max-width: 1280px; margin: 0 auto;
    background: #04101c;
    overflow: hidden;
}
.s28-gal-stage img { width: 100%; max-height: 680px; object-fit: contain; margin: 0 auto; }
.s28-gal-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(6, 24, 41, .6);
    color: #fff; border-radius: 50%;
    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, .18);
    transition: all .2s ease;
    z-index: 2;
}
.s28-gal-nav:hover { background: var(--s28-cyan); color: var(--s28-deep); border-color: var(--s28-cyan); }
.s28-gal-prev { left: 16px; }
.s28-gal-next { right: 16px; }
.s28-gal-count {
    position: absolute; right: 18px; bottom: 16px;
    background: rgba(6, 24, 41, .72); color: rgba(255, 255, 255, .85);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 999px; padding: 5px 16px;
    font-size: 13px; backdrop-filter: blur(4px);
}
.s28-gal-count strong { color: var(--s28-cyan); font-size: 15px; }
.s28-gal-foot { padding-top: 26px; }
.s28-gal-desc {
    text-align: center;
    font-size: 14.5px; color: rgba(255, 255, 255, .65);
}
.s28-gal-film {
    display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
    margin-top: 22px;
}
.s28-gal-film a {
    display: block; border-radius: var(--s28-radius-sm); overflow: hidden;
    border: 2px solid transparent;
    transition: all .2s ease;
}
.s28-gal-film a:hover { border-color: var(--s28-cyan); transform: translateY(-2px); }
.s28-gal-film img { width: 168px; height: 105px; object-fit: cover; }
.s28-gal-foot .s28-pagination { margin-top: 26px; }
.s28-gal-foot .s28-pagination a, .s28-gal-foot .s28-pagination span, .s28-gal-foot .s28-pagination strong {
    background: transparent; color: rgba(255, 255, 255, .8);
    border-color: rgba(255, 255, 255, .2);
}
.s28-gal-foot .s28-pagination .is-on, .s28-gal-foot .s28-pagination strong {
    background: var(--s28-cyan); color: var(--s28-deep); border-color: var(--s28-cyan);
}
.s28-gal-foot .s28-read-tags { border-top-color: rgba(255, 255, 255, .12); }
.s28-gal-foot .s28-read-tags-cap { color: #fff; }

/* ---------- 单页 ---------- */
.s28-singlecard {
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: clamp(24px, 4vw, 44px);
    box-shadow: var(--s28-shadow-sm);
}
.s28-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 26px; }
.s28-duo-card {
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 28px 26px;
}
.s28-duo-card.s28-duo-cyan { background: var(--s28-ice); border-color: rgba(8, 145, 178, .3); }
.s28-duo-no {
    width: 42px; height: 42px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 13px;
    background: var(--s28-grad-cyan); color: var(--s28-deep);
    font-weight: 900; font-size: 18px;
    margin-bottom: 14px;
}
.s28-duo-card h2 { font-size: 19px; font-weight: 800; color: var(--s28-navy); margin-bottom: 12px; }
.s28-duo-card ul { display: grid; gap: 9px; margin-bottom: 20px; }
.s28-duo-card li { position: relative; padding-left: 22px; font-size: 14px; color: var(--s28-text); }
.s28-duo-card li::before {
    content: ""; position: absolute; left: 0; top: 8px;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--s28-cyan);
}
.s28-pagecta {
    margin-top: 26px;
    background: var(--s28-grad);
    border-radius: var(--s28-radius);
    padding: 32px;
    color: #fff;
    text-align: center;
}
.s28-pagecta h2 { font-size: 20px; font-weight: 900; }
.s28-pagecta p { margin: 8px 0 18px; font-size: 14px; color: rgba(255, 255, 255, .78); }
.s28-pagecta-act { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }

/* ---------- 专题 ---------- */
.s28-tagwall { display: flex; flex-wrap: wrap; gap: 14px; }
.s28-tagwall-item {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: 999px;
    padding: 12px 26px;
    font-size: 16px; font-weight: 700; color: var(--s28-navy);
    transition: all .22s ease;
}
.s28-tagwall-item span {
    font-size: 12.5px; font-weight: 800;
    color: var(--s28-cyan-deep);
    background: var(--s28-ice);
    border-radius: 999px; padding: 1px 10px;
}
.s28-tagwall-item:hover {
    background: var(--s28-grad); color: #fff;
    border-color: var(--s28-navy);
    transform: translateY(-3px);
    box-shadow: var(--s28-shadow);
}
.s28-tagwall-item:hover span { background: rgba(34, 211, 238, .2); color: var(--s28-cyan); }

/* ---------- 搜索 / so ---------- */
.s28-ssearch {
    position: relative; overflow: hidden;
    background: var(--s28-grad);
    color: #fff;
    text-align: center;
    padding: 72px 0 66px;
}
.s28-ssearch::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 48px;
    background: var(--s28-mist);
    clip-path: ellipse(60% 100% at 50% 100%);
}
.s28-ssearch-in { position: relative; z-index: 1; }
.s28-ssearch h1 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 900; }
.s28-ssearch p { margin-top: 10px; color: rgba(255, 255, 255, .78); }
.s28-search-big {
    display: flex; align-items: center; gap: 12px;
    max-width: 620px; margin: 28px auto 0;
    background: rgba(255, 255, 255, .96);
    border: 2px solid rgba(34, 211, 238, .5);
    border-radius: 999px;
    padding: 8px 8px 8px 24px;
    box-shadow: 0 14px 40px rgba(34, 211, 238, .25);
    transition: border-color .2s ease;
}
.s28-search-big:focus-within { border-color: var(--s28-cyan); }
.s28-search-big svg { color: var(--s28-muted); flex: 0 0 auto; }
.s28-search-big input {
    flex: 1; min-width: 0; border: 0; outline: none;
    font-size: 15.5px; color: var(--s28-navy); background: transparent; height: 44px;
}
.s28-search-big button {
    height: 44px; padding: 0 30px; border-radius: 999px;
    background: var(--s28-grad); color: #fff; font-weight: 700; flex: 0 0 auto;
}
.s28-ssearch-hint { margin-top: 16px; font-size: 14px; color: rgba(255, 255, 255, .7); }
.s28-so-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.s28-so-card {
    display: flex; align-items: center; gap: 18px;
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 24px 26px;
    transition: all .22s ease;
}
.s28-so-card:hover { border-color: var(--s28-cyan); box-shadow: var(--s28-shadow-sm); transform: translateY(-3px); }
.s28-so-mark {
    flex: 0 0 46px; height: 46px;
    display: flex; align-items: center; justify-content: center;
    background: var(--s28-grad-cyan); color: var(--s28-deep);
    font-weight: 900; font-size: 17px;
    border-radius: 14px;
}
.s28-so-body { flex: 1; min-width: 0; }
.s28-so-body strong { display: block; font-size: 17px; font-weight: 800; color: var(--s28-navy); }
.s28-so-body em { display: block; margin-top: 4px; font-size: 13px; color: var(--s28-muted); }
.s28-so-arrow { color: var(--s28-cyan-deep); flex: 0 0 auto; transition: transform .2s ease; }
.s28-so-card:hover .s28-so-arrow { transform: translateX(4px); }

/* ---------- 404 ---------- */
.s28-404 { padding: 76px 0 10px; }
.s28-404-glass {
    max-width: 640px; margin: 0 auto;
    background: var(--s28-grad);
    border-radius: var(--s28-radius);
    padding: 54px 40px;
    text-align: center;
    color: #fff;
    box-shadow: var(--s28-shadow);
    position: relative; overflow: hidden;
}
.s28-404-glass::before {
    content: ""; position: absolute; right: -70px; top: -70px;
    width: 220px; height: 220px; border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, .35), transparent 65%);
}
.s28-404-num {
    font-size: 92px; font-weight: 900; line-height: 1;
    background: var(--s28-grad-cyan);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    letter-spacing: 4px;
}
.s28-404-glass h1 { font-size: 21px; font-weight: 800; margin-top: 16px; position: relative; }
.s28-404-tip { margin: 12px 0 26px; font-size: 14.5px; color: rgba(255, 255, 255, .7); position: relative; }
.s28-404-act { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; position: relative; }
.s28-err .s28-sec { padding-top: 44px; }

/* ---------- demo ---------- */
.s28-demo-sec {
    background: var(--s28-card);
    border: 1px solid var(--s28-line);
    border-radius: var(--s28-radius);
    padding: 28px 30px;
    margin-bottom: 24px;
}
.s28-demo-sec > h2 { font-size: 17px; font-weight: 800; color: var(--s28-navy); margin-bottom: 18px; }
.s28-demo-swatches { display: flex; flex-wrap: wrap; gap: 14px; }
.s28-demo-swatch {
    display: inline-flex; align-items: flex-end;
    width: 150px; height: 84px;
    border-radius: var(--s28-radius-sm);
    padding: 10px 12px;
    color: #fff; font-size: 12px; font-weight: 700;
}
.s28-demo-row { display: flex; flex-wrap: wrap; gap: 14px; }
.s28-demo-wrap .s28-sec-head { margin-bottom: 30px; }

/* ---------- Footer ---------- */
.s28-foot {
    position: relative;
    background: var(--s28-deep);
    color: rgba(255, 255, 255, .7);
    margin-top: 40px;
}
.s28-foot-glow {
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--s28-cyan) 30%, #67E8F9 50%, var(--s28-cyan) 70%, transparent);
    opacity: .8;
}
.s28-foot-grid {
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
    gap: 40px;
    padding-top: 56px; padding-bottom: 44px;
}
.s28-foot-brand { min-width: 0; }
.s28-foot-logo { font-size: 21px; font-weight: 900; color: #fff; letter-spacing: 1px; }
.s28-foot-desc { margin-top: 14px; font-size: 14px; line-height: 1.9; }
.s28-foot-col h3, .s28-foot-contact h3 {
    font-size: 15px; font-weight: 800; color: #fff;
    margin-bottom: 16px; position: relative; padding-bottom: 10px;
}
.s28-foot-col h3::after, .s28-foot-contact h3::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 30px; height: 3px; border-radius: 3px;
    background: var(--s28-cyan);
}
.s28-foot-col ul { display: grid; gap: 9px; }
.s28-foot-col a { font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.s28-foot-col a:hover { color: var(--s28-cyan); }
.s28-foot-tel a { font-size: 21px; font-weight: 900; color: var(--s28-cyan); }
.s28-foot-tel a:hover { color: #fff; }
.s28-foot-mail { margin-top: 8px; }
.s28-foot-mail a { font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.s28-foot-mail a:hover { color: var(--s28-cyan); }
.s28-foot-time { margin-top: 10px; font-size: 12.5px; color: rgba(255, 255, 255, .4); }
.s28-foot-bar { border-top: 1px solid rgba(255, 255, 255, .09); padding: 18px 0; }
.s28-foot-bar-in {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 8px;
    font-size: 12.5px; color: rgba(255, 255, 255, .42);
}
.s28-foot-bar a { color: rgba(255, 255, 255, .42); }
.s28-foot-bar a:hover { color: var(--s28-cyan); }

/* 浮动工具条 */
.s28-float {
    position: fixed; right: 18px; bottom: 24px; z-index: 90;
    display: flex; flex-direction: column; gap: 10px;
    opacity: 0; pointer-events: none;
    transform: translateY(12px);
    transition: all .25s ease;
}
.s28-float.is-show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.s28-float-item {
    width: 46px; height: 46px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--s28-grad); color: #fff;
    box-shadow: var(--s28-shadow-sm);
    transition: transform .2s ease;
}
.s28-float-item:hover { transform: translateY(-3px); color: #fff; }
.s28-float-item[aria-label="回到顶部"] {
    background: var(--s28-grad-cyan); color: var(--s28-deep);
}

/* ---------- Reveal 动画 ---------- */
.s28-reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.s28-reveal.is-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .s28-bento { grid-template-columns: repeat(2, 1fr); grid-auto-rows: auto; }
    .s28-bcell { min-height: 190px; }
    .s28-bcell-main { grid-column: span 2; grid-row: auto; display: block; }
    .s28-bcell-main figure { height: 300px; }
    .s28-gcard-grid { grid-template-columns: repeat(2, 1fr); }
    .s28-art { grid-template-columns: 1fr; }
    .s28-art-side { position: static; }
    .s28-split-row { grid-template-columns: 1fr; min-height: 0; }
    .s28-split-pic { min-height: 300px; }
    .s28-split-rev .s28-split-pic { order: 0; }
    .s28-split-rev .s28-split-txt { order: 1; }
    .s28-foot-grid { grid-template-columns: 1fr 1fr; }
    .s28-masonry > .s28-mas:nth-child(even) { transform: none; }
    .s28-masonry > .s28-mas:nth-child(even):hover { transform: translateY(-5px); }
}
@media (max-width: 768px) {
    .s28-top { padding: 10px 12px 6px; }
    .s28-nav { display: none; }
    .s28-cta { display: none; }
    .s28-burger { display: inline-flex; }
    .s28-hero { padding: 60px 0 56px; }
    .s28-hero-stats { gap: 10px; }
    .s28-hstat { flex: 1 1 42%; max-width: none; }
    .s28-sec { padding: 54px 0; }
    .s28-sec-head-row { flex-direction: column; align-items: flex-start; }
    .s28-bento { grid-template-columns: 1fr; }
    .s28-bcell-main { grid-column: auto; }
    .s28-gcard-grid { grid-template-columns: 1fr; }
    .s28-masonry { grid-template-columns: 1fr; }
    .s28-item { grid-template-columns: 1fr; }
    .s28-item-pic { display: none; }
    .s28-cat-foot { grid-template-columns: 1fr; }
    .s28-duo { grid-template-columns: 1fr; }
    .s28-so-grid { grid-template-columns: 1fr; }
    .s28-sibling-in { grid-template-columns: 1fr; }
    .s28-foot-grid { grid-template-columns: 1fr; gap: 34px; padding-top: 44px; }
    .s28-hero-cta .s28-btn { width: 100%; }
    .s28-split-txt { padding: 40px 20px; }
}
@media (max-width: 560px) {
    .s28-searchbar form { flex-direction: column; }
    .s28-searchbar button { width: 100%; }
    .s28-search-big { flex-wrap: wrap; border-radius: var(--s28-radius); padding: 14px; }
    .s28-search-big input { flex: 1 1 100%; border-radius: 999px; background: var(--s28-mist); padding: 0 16px; }
    .s28-tagwall-item { padding: 9px 18px; font-size: 14.5px; }
    .s28-gal-nav { width: 40px; height: 40px; }
    .s28-404-glass { padding: 40px 22px; }
    .s28-404-num { font-size: 68px; }
    .s28-foot-grid { grid-template-columns: 1fr; }
    .s28-demo-swatches .s28-demo-swatch { width: calc(50% - 7px); }
}

/* ---------- 动效偏好 / 打印 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
    .s28-reveal { opacity: 1; transform: none; }
}
@media print {
    .s28-top, .s28-foot, .s28-float, .s28-ad, .s28-sibling, .s28-rel, .s28-art-side { display: none !important; }
    body { background: #fff; }
    .s28-art { grid-template-columns: 1fr; }
}