/* WHK 科技集团 — 公司网站样式（2026-10-24 选定的方案 B）
   方向：电影感夜色。深色主题、满版城市摄影分章并在底部融入背景、衬线大标与大数字、金色细线。
   衬线字型由构建按语言裁切（fonts-*.css 定义 "WHK Serif"）；CSP 只允许同源，本文件不引用外部资源。 */

:root {
  --bg: #090f20;
  --bg-2: #0d1530;
  --panel: rgba(255, 255, 255, 0.04);
  --ink: #f2f4f8;
  --ink-2: rgba(242, 244, 248, 0.76);
  --muted: rgba(242, 244, 248, 0.58);
  --line: rgba(255, 255, 255, 0.13);
  --gold: #d6b062;
  --serif: "WHK Serif", "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
  --wrap: 1240px;
  --pad: clamp(20px, 4.5vw, 60px);
  --sec: clamp(80px, 10vw, 140px);
  --nav-h: 72px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}
:lang(zh-Hant) {
  --serif: "WHK Serif", "Noto Serif HK", "Noto Serif TC", "Source Han Serif TC", "Songti TC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang HK", "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Segoe UI", sans-serif;
}
:lang(en) {
  --serif: "WHK Serif", "Noto Serif", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.85 var(--sans); -webkit-font-smoothing: antialiased; line-break: strict; overflow-wrap: anywhere; }
body:lang(en) { line-height: 1.65; overflow-wrap: break-word; }
@media (min-width: 1024px) { body { font-size: 17px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4, p, ol, ul, dl, dd, blockquote { margin: 0; padding: 0; }
ol, ul { list-style: none; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.wrap { max-width: calc(var(--wrap) + var(--pad) * 2); margin: 0 auto; padding: 0 var(--pad); position: relative; }
section { padding: var(--sec) 0; position: relative; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.share-thumb { display: none; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--gold); color: var(--bg); font-size: 14px; }
.skip:focus { top: 12px; }
.kicker { font-size: 13px; letter-spacing: 0.24em; color: var(--gold); display: flex; align-items: center; gap: 14px; }
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--gold); flex: none; }
:lang(en) .kicker, :lang(en) .ch-kicker { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; }
.h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(32px, 4.4vw, 56px); line-height: 1.2; margin-top: 18px; text-wrap: balance; }
:lang(en) .h2 { line-height: 1.12; letter-spacing: -0.01em; }
.lead { margin-top: 24px; font-size: clamp(16px, 1.4vw, 19px); color: var(--ink-2); max-width: 40em; }
.muted { color: var(--muted); }
h3 { font-family: var(--serif); font-weight: 600; font-size: 22px; line-height: 1.4; text-wrap: balance; }
.mark { width: 50px; height: auto; }

/* 满版照片：铺满所在区块，由各区块的渐层融入背景 */
.hero > img, .chapter > img, .financing > img, .contact > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* nav */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 30; height: var(--nav-h); transition: background-color 0.4s var(--ease), border-color 0.4s; border-bottom: 1px solid transparent; }
.nav.is-solid, html:not(.js) .nav { background: rgba(9, 15, 32, 0.86); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.nav-sentinel { position: absolute; left: 0; top: 200px; width: 1px; height: 1px; pointer-events: none; }
.nav-row { height: var(--nav-h); display: flex; align-items: center; gap: 28px; position: static; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 15px; letter-spacing: 0.04em; white-space: nowrap; }
.nav-links { display: none; margin-left: auto; gap: 26px; font-size: 14px; color: var(--ink-2); }
.nav-links a:hover { color: var(--gold); }
.lang { display: flex; align-items: center; gap: 2px; font-size: 13px; color: var(--ink-2); }
.lang a { padding: 4px 7px; }
.lang a:hover { color: var(--ink); }
.lang a[aria-current="true"] { color: var(--gold); }
.lang span { opacity: 0.4; }
.nav-row > .lang { display: none; }
.mnav { margin-left: auto; }
.mnav summary { list-style: none; cursor: pointer; font-size: 14px; letter-spacing: 0.12em; padding: 8px 14px; border: 1px solid var(--line); white-space: nowrap; }
.mnav summary::-webkit-details-marker { display: none; }
.mnav[open] summary { border-color: var(--gold); color: var(--gold); }
.mnav-panel { position: absolute; left: 0; right: 0; top: var(--nav-h); padding: 8px var(--pad) 22px; background: rgba(9, 15, 32, 0.97); border-bottom: 1px solid var(--line); }
.mnav-panel nav { display: grid; }
.mnav-panel nav a { padding: 13px 0; border-top: 1px solid var(--line); font-family: var(--serif); font-size: 19px; }
.mnav-panel .lang { margin-top: 6px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 15px; }
.mnav-panel .lang a:first-child { padding-left: 0; }
@media (min-width: 1100px) {
  .nav-links { display: flex; }
  .nav-row > .lang { display: flex; padding-left: 18px; border-left: 1px solid var(--line); }
  .mnav { display: none; }
}

/* hero: full-bleed photography */
.hero { min-height: 100svh; padding: 0; display: flex; align-items: flex-end; overflow: hidden; }
.hero > img { transform-origin: 60% 40%; }
.hero-scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(9, 15, 32, 0.92) 0%, rgba(9, 15, 32, 0.55) 48%, rgba(9, 15, 32, 0.15) 100%), linear-gradient(0deg, rgba(9, 15, 32, 0.95) 0%, rgba(9, 15, 32, 0) 45%); }
.hero-inner { padding-top: 140px; padding-bottom: clamp(40px, 7vh, 72px); width: 100%; }
.hero-co { font-size: 13px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); }
.hero h1 { margin-top: 22px; font-family: var(--serif); font-weight: 600; font-size: clamp(52px, 9vw, 128px); line-height: 1.04; letter-spacing: 0.04em; }
:lang(en) .hero h1 { font-size: clamp(32px, 4.4vw, 62px); line-height: 1.12; letter-spacing: -0.01em; }
.hero h1 span { display: block; }
.hero h1 span + span { color: var(--gold); }
.hero-text { margin-top: 28px; max-width: 30em; color: var(--ink-2); font-size: clamp(16px, 1.4vw, 19px); }
:lang(en) .hero-text { max-width: 38em; }
.hero-stats { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 760px; }
.hero-stats div + div { padding-left: clamp(14px, 3vw, 36px); border-left: 1px solid var(--line); }
.hero-stats .num { font-family: var(--serif); font-size: clamp(32px, 4vw, 54px); font-weight: 600; line-height: 1; white-space: nowrap; }
.hero-stats .num b { color: var(--gold); font-weight: 600; }
.hero-stats .num small { font-family: var(--sans); font-size: 14px; color: var(--ink-2); margin-left: 4px; }
.hero-stats p:last-child { margin-top: 8px; font-size: 13px; color: var(--muted); }
@media (prefers-reduced-motion: no-preference) {
  .hero > img { animation: settle 2.4s var(--ease) both; }
  @keyframes settle { from { transform: scale(1.07); } to { transform: none; } }
  .rise { animation: rise 1s var(--ease) both; } .r2 { animation-delay: 0.15s; } .r3 { animation-delay: 0.3s; } .r4 { animation-delay: 0.45s; }
  @keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
  .js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
  .js .reveal.is-in { opacity: 1; transform: none; }
}

/* chapter bands */
.chapter { position: relative; height: clamp(360px, 62vh, 620px); display: flex; align-items: flex-end; overflow: hidden; }
.chapter::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--bg) 0%, rgba(9, 15, 32, 0.55) 45%, rgba(9, 15, 32, 0.2) 100%); }
.chapter-inner { z-index: 1; width: 100%; padding-bottom: 48px; }
.chapter.plain { height: auto; padding-top: clamp(96px, 12vw, 168px); }
.chapter.plain::after { display: none; }
.chapter.plain .chapter-inner { padding-bottom: 8px; }
.ch-no { font-family: var(--serif); font-size: clamp(56px, 8vw, 104px); line-height: 1; color: transparent; -webkit-text-stroke: 1px var(--gold); font-variant-numeric: lining-nums; letter-spacing: 0.02em; }
.ch-kicker { margin-top: 14px; font-size: 13px; letter-spacing: 0.22em; color: var(--gold); }
.chapter h2 { margin-top: 10px; font-family: var(--serif); font-weight: 600; font-size: clamp(30px, 4.4vw, 56px); line-height: 1.2; max-width: 18em; text-wrap: balance; }

/* about */
.about-grid { display: grid; gap: 56px; }
.whk { display: grid; gap: 4px; margin-top: 28px; }
.whk p { font-family: var(--serif); font-size: clamp(34px, 4vw, 52px); line-height: 1.1; }
.whk b { color: var(--gold); font-weight: 600; }
.whk span { font-family: var(--sans); font-size: 14px; color: var(--muted); margin-left: 14px; letter-spacing: 0.2em; }
.point { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }
.point p { margin-top: 8px; color: var(--ink-2); }
.about .lead { margin-top: 0; }
.about .point:first-of-type { margin-top: 36px; }
@media (min-width: 1024px) { .about-grid { grid-template-columns: 1fr 1fr; gap: 96px; align-items: start; } .about .lead { margin-top: 44px; } }

/* market */
.market { padding-top: 24px; }
.m-grid { display: grid; gap: 0; border-top: 1px solid var(--line); }
.m-col { padding: 34px 0; border-bottom: 1px solid var(--line); }
.m-col h3 { font-family: var(--sans); font-size: 14px; letter-spacing: 0.14em; color: var(--gold); font-weight: 600; }
.stat { margin-top: 22px; }
.stat .num { font-family: var(--serif); font-size: clamp(48px, 5.6vw, 80px); line-height: 1; font-weight: 600; white-space: nowrap; }
.stat .num small { font-family: var(--sans); font-size: 15px; color: var(--gold); margin-left: 8px; font-weight: 500; }
.stat p:last-child { margin-top: 10px; color: var(--muted); font-size: 14px; }
.m-body { margin-top: 22px; color: var(--ink-2); font-size: 15px; }
.sources { margin-top: 26px; font-size: 12.5px; color: var(--muted); line-height: 1.7; }
@media (min-width: 900px) { .m-grid { grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); } .m-col { border-bottom: 0; padding: 40px 36px 44px 0; } .m-col + .m-col { padding-left: 36px; border-left: 1px solid var(--line); } }

/* clients */
.clients { background: var(--bg-2); }
.c-row { display: grid; gap: 0; margin-top: 52px; }
.c { padding: 30px 0; border-top: 1px solid var(--line); }
.c-no { font-family: var(--serif); font-size: 40px; color: var(--gold); line-height: 1; }
.c h3 { margin-top: 16px; font-size: 24px; }
.c p:last-child { margin-top: 10px; color: var(--ink-2); font-size: 15.5px; }
@media (min-width: 900px) { .c-row { grid-template-columns: repeat(3, 1fr); column-gap: 48px; } }

/* model */
.model { padding-top: 24px; }
.model-grid { display: grid; gap: 0; }
.engine { padding: 32px 0; border-top: 1px solid var(--line); }
.e-tag { font-size: 13px; letter-spacing: 0.18em; color: var(--gold); }
.engine h3 { margin-top: 12px; font-size: clamp(22px, 2.4vw, 30px); }
.e-role { margin-top: 6px; font-size: 14px; color: var(--muted); }
.engine p:last-child { margin-top: 14px; color: var(--ink-2); }
.loop { padding-top: 28px; border-top: 1px solid var(--gold); font-family: var(--serif); font-size: clamp(20px, 2.2vw, 28px); color: var(--gold); }
@media (min-width: 900px) { .model-grid { grid-template-columns: 1fr 1fr; column-gap: 72px; } .loop { grid-column: 1 / -1; } }

/* products */
.products { background: var(--bg-2); }
.p-grid { display: grid; gap: 40px; margin-top: 52px; }
.prod { padding-top: 28px; border-top: 1px solid var(--gold); }
.prod .p-no { margin: 0; font-family: var(--serif); font-size: 46px; line-height: 1; color: var(--gold); }
.client { margin-top: 22px; font-size: 13px; color: var(--gold); letter-spacing: 0.1em; }
.prod h3 { margin-top: 8px; }
.prod p:not(.client):not(.p-no) { margin-top: 12px; font-size: 15px; color: var(--ink-2); }
.prod b, .stage b { display: block; font-size: 13px; color: var(--muted); font-weight: 500; }
@media (min-width: 900px) { .p-grid { grid-template-columns: repeat(3, 1fr); column-gap: 48px; } }

/* financing: full-bleed photo with glass panels */
.financing { overflow: hidden; }
.fin-scrim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9, 15, 32, 0.9), rgba(9, 15, 32, 0.72) 40%, rgba(9, 15, 32, 0.92)); }
.fin-inner { z-index: 1; }
.fin-grid { display: grid; gap: 16px; margin-top: 48px; }
.fin { padding: 30px; background: rgba(13, 21, 48, 0.62); border: 1px solid var(--line); -webkit-backdrop-filter: blur(14px) saturate(1.2); backdrop-filter: blur(14px) saturate(1.2); }
.f-no { font-family: var(--serif); font-size: 44px; line-height: 1; color: var(--gold); }
.fin h3 { margin-top: 14px; }
.fin p:not(.f-no) { margin-top: 10px; font-size: 15px; color: var(--ink-2); }
@media (min-width: 900px) { .fin-grid { grid-template-columns: 1fr 1fr; } }

/* fund */
.fund { padding-top: 24px; }
blockquote { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 34px); line-height: 1.6; max-width: 34em; padding-left: 28px; position: relative; }
blockquote::before { content: ""; position: absolute; left: 0; top: 0.4em; bottom: 0.4em; width: 1px; background: var(--gold); }
:lang(en) blockquote { line-height: 1.45; }
.stages { display: grid; gap: 0; margin-top: 64px; }
.stage { padding: 30px 0; border-top: 1px solid var(--line); }
.s-phase { font-size: 13px; color: var(--gold); letter-spacing: 0.14em; }
.stage h3 { margin-top: 8px; font-size: 34px; }
.stage p:not(.s-phase) { margin-top: 12px; color: var(--ink-2); font-size: 15px; }
.process { margin-top: 72px; padding: clamp(28px, 4vw, 48px); background: var(--panel); border: 1px solid var(--line); }
.process > h3 { font-size: 28px; }
.p-model { margin-top: 12px; color: var(--ink-2); max-width: 52em; }
.process ol { display: grid; gap: 28px; margin-top: 36px; }
.process li span { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--gold); border-radius: 50%; font-family: var(--serif); color: var(--gold); }
.process h4 { margin-top: 14px; font-family: var(--serif); font-weight: 600; font-size: 20px; }
.process li p { margin-top: 8px; font-size: 14.5px; color: var(--ink-2); }
.process .path { color: var(--muted); font-size: 13.5px; }
@media (min-width: 900px) { .stages { grid-template-columns: repeat(3, 1fr); column-gap: 48px; } .process ol { grid-template-columns: repeat(4, 1fr); } }

/* values */
.values { background: var(--bg-2); }
.v-grid { display: grid; gap: 0; margin-top: 52px; }
.v { padding: 30px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 64px 1fr; gap: 4px 12px; align-content: start; }
.v-no { font-family: var(--serif); font-size: 26px; color: var(--gold); grid-row: span 2; }
.v p:last-child { color: var(--ink-2); font-size: 15px; }
@media (min-width: 760px) { .v-grid { grid-template-columns: 1fr 1fr; column-gap: 48px; } }
@media (min-width: 1100px) { .v-grid { grid-template-columns: repeat(3, 1fr); } }

/* org + team */
.org { padding-top: 24px; }
.tree { text-align: center; }
.root { display: inline-block; padding: 16px 32px; border: 1px solid var(--gold); font-family: var(--serif); font-size: 22px; }
.units { display: grid; gap: 16px; margin-top: 36px; text-align: left; }
.unit { padding: 26px; background: var(--panel); border-top: 1px solid var(--gold); }
.unit .note { margin-top: 4px; font-size: 13px; color: var(--gold); }
.unit ul { margin-top: 14px; display: grid; gap: 6px; font-size: 14.5px; color: var(--ink-2); }
.roles { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 10px 36px; font-size: 15px; color: var(--ink-2); }
.roles b { color: var(--gold); font-weight: 500; margin-right: 10px; }
@media (min-width: 900px) { .units { grid-template-columns: repeat(4, 1fr); } }
.team { padding-top: 0; }
.people { display: grid; gap: 0; }
.person { padding: 32px 0; border-top: 1px solid var(--line); }
.person .role { font-size: 13px; color: var(--gold); letter-spacing: 0.2em; }
.person h3 { margin-top: 6px; font-size: 34px; letter-spacing: 0.08em; }
:lang(en) .person h3 { letter-spacing: 0.01em; }
.person dl { margin-top: 18px; display: grid; gap: 10px; }
.person dl div { display: grid; grid-template-columns: 4.4em 1fr; gap: 14px; }
:lang(en) .person dl div { grid-template-columns: 8.4em 1fr; }
.person dt { font-size: 13px; color: var(--muted); padding-top: 2px; }
.person dd { font-size: 15px; color: var(--ink-2); }
@media (max-width: 520px) { :lang(en) .person dl div { grid-template-columns: 1fr; gap: 2px; } }
@media (min-width: 960px) { .people { grid-template-columns: 1fr 1fr; column-gap: 72px; } }

/* advisors */
.a-grid { display: grid; gap: 0; margin-top: 52px; border-top: 1px solid var(--line); }
.ag { padding: 30px 0; border-bottom: 1px solid var(--line); }
.ag .sub { font-size: 13px; color: var(--muted); margin-top: 2px; }
.ag ul { margin-top: 18px; display: grid; gap: 6px; font-family: var(--serif); font-size: 19px; }
@media (min-width: 900px) { .a-grid { grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); } .ag { border-bottom: 0; padding-right: 28px; } .ag + .ag { padding-left: 28px; border-left: 1px solid var(--line); } }

/* contact: one city photo, faded in from the page above */
.contact { padding: 0; min-height: 76vh; display: flex; align-items: center; overflow: hidden; }
.contact-scrim { position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(9, 15, 32, 0.55) 30%, rgba(9, 15, 32, 0.45) 60%, rgba(9, 15, 32, 0.9) 100%), linear-gradient(90deg, rgba(9, 15, 32, 0.85) 0%, rgba(9, 15, 32, 0.2) 70%); }
.contact-inner { z-index: 1; padding-top: var(--sec); padding-bottom: var(--sec); width: 100%; }
.phone { display: inline-block; margin-top: 30px; font-family: var(--serif); font-size: clamp(40px, 7vw, 92px); color: var(--gold); line-height: 1; white-space: nowrap; }
.contact .muted { margin-top: 14px; }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 40px 0 30px; font-size: 13.5px; color: var(--ink-2); }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 32px; }
.foot-brand { display: flex; align-items: center; gap: 14px; }
.foot-brand .mark { width: 44px; }
.foot-brand span { display: block; font-size: 12.5px; color: var(--muted); }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.foot-links a:hover { color: var(--gold); }
.foot-legal { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px; font-size: 12.5px; color: var(--muted); }

/* 404 */
.nf { min-height: 100svh; display: flex; align-items: center; padding: 64px 0; }
.nf img { width: 104px; }
.nf h1 { margin-top: 28px; font-family: var(--serif); font-weight: 600; font-size: clamp(32px, 5vw, 52px); line-height: 1.2; }
.nf p { margin-top: 12px; color: var(--ink-2); }
.nf ul { margin-top: 28px; display: grid; gap: 10px; }
.nf a { border-bottom: 1px solid var(--line); }
.nf a:hover { color: var(--gold); border-color: var(--gold); }