/* Won Tech 门户与 WonLink 官网 · 共用样式（纯静态，无外部依赖；不使用内联样式，兼容严格 CSP） */
:root {
  --bg: #f6f8fc; --bg2: #ffffff; --surface: #ffffff; --soft: #eef2f9; --line: #e2e8f3; --line2: #cdd6e6;
  --text: #0a1226; --text2: #36405c; --muted: #66718d; --faint: #98a2b9;
  --brand: #2563eb; --brand2: #0ea5e9; --brand-soft: #e8f0ff; --on-brand: #ffffff;
  --c-nm: #0ea5e9; --c-cpe: #f59e0b; --c-wl: #3b82f6; --c-pm: #6366f1; --c-ms: #14b8a6;
  --ok: #0a9b66; --warn: #c27803; --bad: #d23b2f;
  --sh1: 0 1px 2px rgba(15, 25, 60, .06); --sh2: 0 14px 34px -14px rgba(25, 40, 100, .22); --sh3: 0 40px 90px -30px rgba(25, 40, 110, .38);
  --glow: .55;
  --wb-bg: transparent; --wb-line: var(--line); --wb-fg: var(--muted); --wb-strong: var(--text); --wb-acc: var(--brand); --wb-w: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, Menlo, monospace;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #05070d; --bg2: #090d17; --surface: #0e1421; --soft: #131a2b; --line: #1d2740; --line2: #2a3656;
  --text: #eef2fb; --text2: #c0c9de; --muted: #8b96b2; --faint: #5a6684;
  --brand: #5b8cff; --brand2: #38bdf8; --brand-soft: #14213f; --on-brand: #06101f;
  --c-nm: #38bdf8; --c-cpe: #fbbf24; --c-wl: #6ea1ff; --c-pm: #8b8dff; --c-ms: #2dd4bf;
  --ok: #4ade9b; --warn: #ffb866; --bad: #ff8d84;
  --sh1: 0 1px 2px rgba(0, 0, 0, .5); --sh2: 0 16px 36px -12px rgba(0, 0, 0, .65); --sh3: 0 40px 90px -30px rgba(0, 0, 0, .9);
  --glow: 1; color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #05070d; --bg2: #090d17; --surface: #0e1421; --soft: #131a2b; --line: #1d2740; --line2: #2a3656;
    --text: #eef2fb; --text2: #c0c9de; --muted: #8b96b2; --faint: #5a6684;
    --brand: #5b8cff; --brand2: #38bdf8; --brand-soft: #14213f; --on-brand: #06101f;
    --c-nm: #38bdf8; --c-cpe: #fbbf24; --c-wl: #6ea1ff; --c-pm: #8b8dff; --c-ms: #2dd4bf;
    --ok: #4ade9b; --warn: #ffb866; --bad: #ff8d84;
    --sh1: 0 1px 2px rgba(0, 0, 0, .5); --sh2: 0 16px 36px -12px rgba(0, 0, 0, .65); --sh3: 0 40px 90px -30px rgba(0, 0, 0, .9);
    --glow: 1; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body { position: relative; margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 var(--font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
h1, h2, h3 { text-wrap: balance; letter-spacing: -.028em; line-height: 1.14; font-weight: 760; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
svg { display: block; }
.ic { width: 1.1em; height: 1.1em; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.wrap { width: min(1200px, 100% - 40px); margin-inline: auto; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 8px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-weight: 650; }
.skip:focus { top: 12px; }

/* 产品色 */
.p-nm { --pc: var(--c-nm); } .p-cpe { --pc: var(--c-cpe); } .p-wl { --pc: var(--c-wl); } .p-pm { --pc: var(--c-pm); } .p-ms { --pc: var(--c-ms); }
.grad-text { background: linear-gradient(95deg, #2563eb 0%, #0ea5e9 55%, #22d3ee 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
:root[data-theme="dark"] .grad-text { background-image: linear-gradient(95deg, #7aa2ff 0%, #4cc3f7 55%, #5eead4 100%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .grad-text { background-image: linear-gradient(95deg, #7aa2ff 0%, #4cc3f7 55%, #5eead4 100%); } }

/* 按钮 / 文字链接 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--line2); background: var(--surface); color: var(--text); font-weight: 650; font-size: 15px; transition: transform .12s, box-shadow .2s, background .2s, border-color .2s; white-space: nowrap; }
.btn:hover { border-color: var(--faint); transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; border-color: transparent; box-shadow: 0 10px 24px -12px var(--brand); }
:root[data-theme="dark"] .btn.primary { color: #04101f; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { color: #04101f; } }
.btn.primary:hover { filter: brightness(1.06); }
.btn.lg { height: 52px; padding: 0 30px; font-size: 16px; }
.btn.sm { height: 34px; padding: 0 16px; font-size: 13.5px; }
.more { display: inline-flex; align-items: center; gap: 4px; color: var(--brand); font-weight: 650; font-size: 16px; }
.more::after { content: "›"; font-size: 1.25em; line-height: 1; transition: transform .15s; }
.more:hover::after { transform: translateX(3px); }
.more:hover { text-decoration: underline; text-underline-offset: 4px; }
.ibtn { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; color: var(--text2); transition: background .15s; }
.ibtn:hover { background: var(--soft); color: var(--text); }
.ibtn .ic { width: 19px; height: 19px; }

/* 本页导航（全局页头之下） */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 60; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: saturate(1.7) blur(18px); -webkit-backdrop-filter: saturate(1.7) blur(18px); border-bottom: 1px solid color-mix(in srgb, var(--line) 80%, transparent); transition: opacity .22s, transform .22s, visibility .22s; }
html.wb-top .nav { opacity: 0; transform: translateY(-100%); visibility: hidden; pointer-events: none; }
html.wb-top .m-menu { display: none; }
.nav .wrap { display: flex; align-items: center; gap: 6px; height: 56px; }
.nav .ttl { display: flex; align-items: center; gap: 10px; font-weight: 740; font-size: 18px; letter-spacing: -.02em; margin-right: 18px; }
.nav .ttl svg { width: 28px; height: 28px; border-radius: 8px; }
.nav .ttl.wl-ttl svg { border-radius: 0; width: 30px; height: 30px; }
.links { display: flex; gap: 2px; }
.links a { padding: 7px 13px; border-radius: 9px; color: var(--text2); font-weight: 560; font-size: 14px; transition: background .15s, color .15s; }
.links a:hover, .links a.on { background: var(--soft); color: var(--text); }
.nav .sp { flex: 1; }
.burger { display: none; }
.m-menu { display: none; }

/* Hero */
.hero { position: relative; padding: 152px 0 40px; isolation: isolate; overflow: hidden; text-align: center; }
.hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero-bg i { position: absolute; border-radius: 50%; filter: blur(100px); }
.hero-bg i:nth-child(1) { width: 620px; height: 620px; left: -160px; top: -240px; background: var(--c-nm); opacity: calc(.26 * var(--glow)); }
.hero-bg i:nth-child(2) { width: 560px; height: 560px; right: -140px; top: -200px; background: var(--c-pm); opacity: calc(.22 * var(--glow)); }
.hero-bg i:nth-child(3) { width: 460px; height: 460px; left: 36%; top: 160px; background: var(--c-ms); opacity: calc(.12 * var(--glow)); }
.hero-bg::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 56px 56px; opacity: .3; mask-image: radial-gradient(65% 55% at 50% 25%, #000 15%, transparent 75%); -webkit-mask-image: radial-gradient(65% 55% at 50% 25%, #000 15%, transparent 75%); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 12.5px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.hero h1 { font-size: clamp(36px, 7vw, 84px); line-height: 1.06; letter-spacing: -.04em; margin: 22px auto; max-width: 13em; font-weight: 800; }
.hero .lead { font-size: clamp(16px, 1.8vw, 20px); color: var(--text2); max-width: 40em; margin-inline: auto; line-height: 1.8; }
.hero .sub { margin-top: 26px; color: var(--muted); font-size: 14.5px; }

/* 产品墙 */
.wall { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 64px; }
.tile { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; padding: 26px 14px 22px; border-radius: 26px; border: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 86%, transparent); backdrop-filter: blur(10px); transition: transform .22s, box-shadow .22s, border-color .22s; }
.tile:hover { transform: translateY(-5px); box-shadow: var(--sh2); border-color: color-mix(in srgb, var(--pc) 50%, var(--line)); }
.pi { width: 64px; height: 64px; border-radius: 19px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, var(--pc), color-mix(in srgb, var(--pc) 58%, #001)); box-shadow: 0 14px 28px -12px var(--pc), inset 0 1px 0 rgba(255, 255, 255, .32); margin-bottom: 12px; flex: none; }
.pi svg { width: 32px; height: 32px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.pi.md { width: 52px; height: 52px; border-radius: 16px; margin: 0; } .pi.md svg { width: 26px; height: 26px; }
.tile b { font-size: 15.5px; font-weight: 720; letter-spacing: -.01em; }
.tile small { color: var(--muted); font-size: 12.5px; line-height: 1.45; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 56px; border-block: 1px solid var(--line); text-align: left; }
.stat { padding: 26px 26px; border-right: 1px solid var(--line); } .stat:last-child { border-right: 0; }
.stat b { display: block; font-size: 34px; font-weight: 800; letter-spacing: -.035em; line-height: 1.1; }
.stat span { display: block; color: var(--muted); font-size: 13.5px; margin-top: 6px; line-height: 1.55; }

/* 区块 */
.sec { padding: 110px 0; }
.sec.alt { background: var(--bg2); border-block: 1px solid var(--line); }
.sec-h { max-width: 760px; margin-bottom: 52px; }
.sec-h h2 { font-size: clamp(28px, 4.2vw, 48px); margin: 16px 0 14px; font-weight: 800; letter-spacing: -.035em; }
.sec-h p { color: var(--text2); font-size: 17.5px; line-height: 1.8; }
.sec-h.center { text-align: center; margin-inline: auto; } .sec-h.center .eyebrow { justify-content: center; }

/* 产品展示：左右交替 */
.show { padding: 104px 0; border-top: 1px solid var(--line); }
.show.alt { background: var(--bg2); }
.show .grid { display: grid; grid-template-columns: 1fr 1.08fr; gap: 72px; align-items: center; }
.show.rev .grid { grid-template-columns: 1.08fr 1fr; } .show.rev .txt { order: 2; }
.show .cat { display: flex; align-items: center; gap: 14px; }
.show .cat .name { font-size: 16px; font-weight: 720; letter-spacing: -.005em; line-height: 1.3; }
.show .cat .name small { display: block; font-size: 12px; color: var(--pc); letter-spacing: .12em; text-transform: uppercase; font-weight: 700; margin-bottom: 2px; }
.show h2 { font-size: clamp(30px, 4.4vw, 52px); letter-spacing: -.038em; font-weight: 800; margin: 26px 0 18px; line-height: 1.1; }
.show p.lede { color: var(--text2); font-size: 17px; line-height: 1.85; max-width: 34em; }
.feats { display: grid; gap: 16px; margin: 30px 0 28px; }
.feats li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; font-size: 15px; line-height: 1.65; color: var(--text2); }
.feats li b { color: var(--text); font-weight: 680; }
.feats li .ic { color: var(--pc); margin-top: 3px; width: 18px; height: 18px; stroke-width: 2.3; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.chip { font-size: 12.5px; font-weight: 620; padding: 5px 12px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); color: var(--text2); white-space: nowrap; }
.chip.pc { background: color-mix(in srgb, var(--pc) 11%, transparent); border-color: color-mix(in srgb, var(--pc) 28%, var(--line)); color: var(--text); }
.acts { display: flex; flex-wrap: wrap; gap: 8px 28px; align-items: center; }
.vis { position: relative; border-radius: 30px; border: 1px solid var(--line); background: var(--surface); padding: 22px; box-shadow: var(--sh2); isolation: isolate; overflow: hidden; }
.vis::before { content: ""; position: absolute; width: 440px; height: 440px; right: -170px; top: -190px; border-radius: 50%; background: var(--pc); opacity: calc(.12 * var(--glow)); filter: blur(64px); z-index: -1; }
.vis svg { width: 100%; height: auto; }
.vis .cap { font-size: 11.5px; color: var(--faint); text-align: right; margin-top: 10px; letter-spacing: .04em; }

/* 平台矩阵 */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 17px 18px; text-align: center; border-bottom: 1px solid var(--line); font-size: 14.5px; }
th { font-size: 12.5px; letter-spacing: .06em; color: var(--muted); font-weight: 650; background: var(--bg2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td:first-child, th:first-child { text-align: left; padding-left: 26px; }
td:first-child { font-weight: 700; white-space: nowrap; }
td:first-child .pdot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--pc); margin-right: 12px; box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc) 18%, transparent); }
td .y { color: var(--brand); font-weight: 800; } td .n { color: var(--faint); } td .s { color: var(--muted); font-size: 12.5px; font-weight: 650; }
.tnote { margin-top: 14px; color: var(--muted); font-size: 13.5px; line-height: 1.75; }

/* 理念 */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.pillar { border: 1px solid var(--line); border-radius: 26px; padding: 30px 26px; background: var(--surface); transition: transform .2s, box-shadow .2s; }
.pillar:hover { transform: translateY(-4px); box-shadow: var(--sh2); }
.pillar .ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); margin-bottom: 20px; }
.pillar .ico .ic { width: 22px; height: 22px; }
.pillar h3 { font-size: 19px; margin-bottom: 10px; } .pillar p { color: var(--text2); font-size: 15px; line-height: 1.8; }

/* 即将到来 */
.soon { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.soon h2 { font-size: clamp(28px, 4vw, 44px); margin: 16px 0 14px; font-weight: 800; letter-spacing: -.035em; } .soon p { color: var(--text2); font-size: 17px; line-height: 1.85; max-width: 32em; }
.slots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.slot { border: 1.5px dashed var(--line2); border-radius: 22px; padding: 22px; min-height: 120px; display: flex; flex-direction: column; justify-content: space-between; color: var(--faint); }
.slot b { font-size: 13px; letter-spacing: .12em; font-weight: 700; } .slot span { font-size: 14px; color: var(--muted); }
.slot:first-child { border-color: color-mix(in srgb, var(--brand) 45%, var(--line2)); background: color-mix(in srgb, var(--brand) 6%, transparent); } .slot:first-child b { color: var(--brand); }

/* FAQ */
.faq { max-width: 860px; margin-inline: auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 24px 4px; font-size: 18px; font-weight: 680; letter-spacing: -.015em; display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; width: 10px; height: 10px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg); transition: transform .2s; flex: none; margin-right: 6px; }
.faq details[open] summary::after { transform: rotate(-135deg); }
.faq .a { padding: 0 4px 26px; color: var(--text2); font-size: 16px; line-height: 1.85; max-width: 46em; }
.faq .a a { color: var(--brand); font-weight: 600; }

/* 页脚 */
.foot { border-top: 1px solid var(--line); background: var(--bg2); padding: 64px 0 40px; }
.foot-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 36px; }
.foot h4 { font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 16px; font-weight: 700; }
.foot ul { display: grid; gap: 11px; }
.foot ul a { color: var(--text2); font-size: 14.5px; display: inline-flex; align-items: center; gap: 8px; }
.foot ul a:hover { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.foot ul a i { width: 8px; height: 8px; border-radius: 50%; background: var(--pc); display: block; }
.foot .about .ttl { display: flex; align-items: center; gap: 10px; font-weight: 740; font-size: 18px; }
.foot .about .ttl svg { width: 28px; height: 28px; }
.foot .about p { color: var(--muted); font-size: 14px; line-height: 1.8; margin-top: 14px; max-width: 26em; }
.foot .legal { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }

/* 入场动效 */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal.d1 { transition-delay: .08s; } .js .reveal.d2 { transition-delay: .16s; } .js .reveal.d3 { transition-delay: .24s; } .js .reveal.d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .js .reveal { opacity: 1; transform: none; transition: none; } * { animation-duration: .01ms !important; } }

/* SVG 示意图配色 */
svg text { font-family: var(--font); }
svg .t { font-size: 11px; fill: var(--text2); } svg .tm { fill: var(--muted); } svg .tb { font-weight: 700; fill: var(--text); } svg .tx { font-size: 10px; } svg .tl { font-size: 15px; font-weight: 800; fill: var(--text); } svg .tw { fill: #fff; font-weight: 700; }
svg .f-pc { fill: var(--pc); } svg .s-pc { stroke: var(--pc); fill: none; } svg .f-line { fill: var(--line); } svg .f-soft { fill: var(--soft); } svg .f-sur { fill: var(--surface); } svg .f-bg { fill: var(--bg); } svg .f-faint { fill: var(--faint); }
svg .f-ok { fill: var(--ok); } svg .f-bad { fill: var(--bad); } svg .f-warn { fill: var(--warn); } svg .s-line { stroke: var(--line); fill: none; } svg .s-faint { stroke: var(--faint); fill: none; } svg .s-ok { stroke: var(--ok); fill: none; } svg .s-bad { stroke: var(--bad); fill: none; }
svg .fo-pc { fill: var(--pc); opacity: .14; } svg .f-brand { fill: var(--brand); } svg .s-brand { stroke: var(--brand); fill: none; }
svg .bar { transform-box: fill-box; transform-origin: 50% 100%; animation: bar 2.2s ease-in-out infinite; }
@keyframes bar { 0%, 100% { transform: scaleY(1); } 50% { transform: scaleY(.55); } }
svg .bar:nth-child(3n) { animation-delay: -.7s; } svg .bar:nth-child(3n+1) { animation-delay: -1.4s; } svg .bar:nth-child(5n) { animation-duration: 1.6s; }
.pulse { animation: pulse 2s ease-in-out infinite; } @keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { svg .bar, .pulse { animation: none; } }

/* ===== WonLink ===== */
:root { --wl-cyan: #0891b2; --wl-primary: #2563eb; }
.wl { --pc: var(--c-wl); }
.wl-mark { filter: drop-shadow(0 0 8px rgba(59, 130, 246, .45)); overflow: visible; }
.wl-name { font-weight: 700; letter-spacing: .04em; background: linear-gradient(92deg, var(--text), var(--wl-primary)); -webkit-background-clip: text; background-clip: text; color: transparent; }
svg .sa { stop-color: var(--wl-cyan); } svg .sb { stop-color: var(--wl-primary); } svg .dotc { fill: var(--wl-cyan); }
:root[data-theme="dark"] { --wl-cyan: #2dd4bf; --wl-primary: #4d8dfa; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --wl-cyan: #2dd4bf; --wl-primary: #4d8dfa; } }
.wl-hero { padding: 144px 0 56px; position: relative; isolation: isolate; overflow: hidden; }
.wl-hero .hero-bg i:nth-child(1) { background: #0891b2; } .wl-hero .hero-bg i:nth-child(2) { background: #2563eb; }
.wl-hero .top { text-align: center; max-width: 880px; margin-inline: auto; }
.wl-hero h1 { font-size: clamp(34px, 6.4vw, 74px); line-height: 1.07; font-weight: 800; letter-spacing: -.04em; margin: 22px 0 20px; }
.wl-hero .lead { color: var(--text2); font-size: clamp(16px, 1.8vw, 19.5px); line-height: 1.85; max-width: 40em; margin-inline: auto; }
.wl-hero .cta { display: flex; gap: 12px 26px; flex-wrap: wrap; margin-top: 30px; justify-content: center; align-items: center; }
.wl-hero .note { margin-top: 16px; color: var(--muted); font-size: 13.5px; }
.shot { margin-top: 56px; border-radius: 26px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--sh3); overflow: hidden; }
.shot svg { width: 100%; height: auto; }
.shot-cap { margin-top: 12px; text-align: center; font-size: 12px; color: var(--faint); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.metric { padding: 30px 26px; border-right: 1px solid var(--line); } .metric:last-child { border-right: 0; }
.metric b { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.03em; line-height: 1.15; }
.metric span { display: block; color: var(--muted); font-size: 13.5px; margin-top: 6px; line-height: 1.55; }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feat { border: 1px solid var(--line); border-radius: 26px; background: var(--surface); padding: 28px; transition: transform .2s, border-color .2s, box-shadow .2s; }
.feat:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--pc) 45%, var(--line)); box-shadow: var(--sh2); }
.feat .ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: color-mix(in srgb, var(--pc) 13%, var(--soft)); color: var(--pc); margin-bottom: 18px; }
.feat .ico .ic { width: 22px; height: 22px; }
.feat h3 { font-size: 18px; margin-bottom: 8px; } .feat p { color: var(--text2); font-size: 14.5px; line-height: 1.8; }
.arch { border: 1px solid var(--line); border-radius: 28px; background: var(--surface); padding: 28px; box-shadow: var(--sh2); }
.arch svg { width: 100%; height: auto; }
.cols3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.col { border: 1px solid var(--line); border-radius: 26px; padding: 28px; background: var(--surface); }
.col .ico { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); margin-bottom: 18px; }
.col .ico .ic { width: 22px; height: 22px; }
.col h3 { font-size: 18px; margin-bottom: 8px; } .col p { color: var(--text2); font-size: 14.5px; line-height: 1.8; }
.col ul { margin-top: 14px; display: grid; gap: 8px; } .col li { font-size: 14px; color: var(--text2); display: flex; gap: 10px; } .col li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); margin-top: .62em; flex: none; }
.spec { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: 26px; overflow: hidden; background: var(--surface); margin: 0; }
.spec div { display: flex; gap: 20px; padding: 20px 26px; border-bottom: 1px solid var(--line); } .spec div:nth-child(odd) { border-right: 1px solid var(--line); } .spec div:nth-last-child(-n+2) { border-bottom: 0; }
.spec dt { width: 6.5em; flex: none; color: var(--muted); font-size: 14px; font-weight: 600; } .spec dd { margin: 0; font-size: 14.5px; font-weight: 600; line-height: 1.6; }
.endcta { text-align: center; max-width: 720px; margin-inline: auto; }
.endcta h2 { font-size: clamp(28px, 4.2vw, 48px); font-weight: 800; letter-spacing: -.035em; margin-bottom: 14px; } .endcta p { color: var(--text2); font-size: 17.5px; margin-bottom: 28px; }
.err { padding: 140px 0 120px; } .err h1 { font-size: clamp(34px, 6vw, 64px); margin: 18px 0; font-weight: 800; } .err .lead { color: var(--text2); font-size: 18px; max-width: 30em; } .err .cta { margin-top: 28px; }

/* ===== 响应式 ===== */
@media (max-width: 1020px) {
  .links { display: none; } .burger { display: grid; }
  .m-menu { position: fixed; z-index: 55; inset: 57px 0 auto 0; max-height: calc(100vh - 57px); overflow: auto; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px 20px 20px; box-shadow: var(--sh3); }
  .m-menu.open { display: block; }
  .m-menu a { display: block; padding: 14px 6px; font-weight: 620; border-bottom: 1px solid var(--line); font-size: 16px; } .m-menu a:last-child { border-bottom: 0; }
  .wall { grid-template-columns: repeat(3, 1fr); } .stats, .metrics { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2), .metric:nth-child(2) { border-right: 0; } .stat:nth-child(-n+2), .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .show .grid, .show.rev .grid, .soon { grid-template-columns: 1fr; gap: 44px; } .show.rev .txt { order: 0; }
  .pillars { grid-template-columns: repeat(2, 1fr); } .feat-grid, .cols3 { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .sec, .show { padding: 68px 0; } .hero { padding: 104px 0 30px; } .wl-hero { padding: 100px 0 40px; }
  .wall { grid-template-columns: repeat(2, 1fr); margin-top: 44px; } .tile:last-child:nth-child(odd) { grid-column: 1 / -1; } .tile { padding: 20px 10px 18px; } .pi { width: 54px; height: 54px; border-radius: 16px; }
  .stats, .metrics { margin-top: 40px; } .stat, .metric { padding: 18px; } .stat b, .metric b { font-size: 25px; }
  .pillars, .feat-grid, .cols3, .slots { grid-template-columns: 1fr; }
  .spec { grid-template-columns: 1fr; } .spec div:nth-child(odd) { border-right: 0; } .spec div:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .vis { padding: 14px; border-radius: 24px; } .faq summary { font-size: 16.5px; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
}