/* DeepSeek Alpha — the public front door.
   Dark, quiet, product-led. One reading column, hairline rules, a single
   white primary action; colour is reserved for live state and links. */
:root {
  --bg: #050506;
  --bg-2: #090a0c;
  --panel: #0e1013;
  --panel-2: #13161a;
  --paper: #f1efe8;
  --paper-2: #e8e5dc;
  --text: #f3f2ee;
  --muted: #92969d;
  --muted-2: #666b73;
  --line: #24272d;
  --line-soft: #1a1d22;
  --link: #a9beff;
  --green: #36d399;
  --red: #ff7168;
  --mono: "SFMono-Regular", "IBM Plex Mono", "Roboto Mono", Consolas, monospace;
  --sans: "Helvetica Neue", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --max: 1180px;
  --r: 6px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id], main [id] { scroll-margin-top: 90px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--link); }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: #fff; color: #000; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 8px 12px; background: #fff; color: #000; }
.skip:focus { top: 12px; }

/* ── nav ─────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5, 5, 6, .82);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color .2s ease, background .2s ease;
}
.nav.is-scrolled { border-bottom-color: var(--line); background: rgba(5, 5, 6, .94); }
.nav__inner { max-width: var(--max); margin: 0 auto; height: 68px; padding: 0 28px; display: flex; align-items: center; gap: 42px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 500; letter-spacing: -.02em; white-space: nowrap; }
.brand__mark { display: grid; place-items: center; width: 26px; height: 26px; color: var(--text); border: 1px solid #3a3e45; border-radius: 7px; }
.brand__mark svg { width: 19px; height: 19px; }
.brand__name { font-size: 16px; font-weight: 600; letter-spacing: -.035em; }
.brand__name em { font-style: normal; color: var(--muted); font-weight: 400; }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a { font-size: 12.5px; color: var(--muted); transition: color .16s; }
.nav__links a:hover { color: var(--text); }
.nav__actions { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.nav__login { font-size: 12.5px; color: var(--muted); }
.nav__login:hover { color: var(--text); }
.nav__toggle { display: none; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; padding: 11px; }
.nav__toggle span { display: block; height: 1px; background: var(--text); margin: 5px 0; }
.nav__mobile { display: none; }

/* ── shared type / controls ──────────────────────────────────────────── */
.eyebrow, .kicker { margin: 0; font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; width: fit-content; padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px; }
.live-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green); display: inline-block; animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
h1, h2, h3 { margin: 0; font-family: var(--sans); font-weight: 500; letter-spacing: -.055em; line-height: 1.04; }
h1 { font-size: clamp(48px, 7vw, 92px); }
h2 { font-size: clamp(36px, 4.6vw, 64px); color: var(--text); }
h3 { font-size: 19px; letter-spacing: -.025em; line-height: 1.25; }
p { margin: 0; }
.dim { color: #777c84; }
.mono { font-family: var(--mono); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 24px; border: 1px solid transparent; border-radius: 999px;
  font-size: 13px; font-weight: 500; letter-spacing: .01em; cursor: pointer;
  transition: background .18s, color .18s, border-color .18s, transform .18s;
}
.btn:hover { color: inherit; transform: translateY(-1px); }
.btn--small { min-height: 38px; padding: 0 17px; font-size: 12px; }
.btn--accent { background: #fff; color: #08090a; border-color: #fff; }
.btn--accent:hover { background: #deddd7; color: #000; border-color: #deddd7; }
.btn--ink { background: transparent; color: var(--text); border-color: #3a3e45; }
.btn--ink:hover { border-color: #777c84; color: #fff; }
.text-link { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--muted); border-bottom: 1px solid #353941; padding-bottom: 2px; }
.text-link:hover { color: var(--text); border-color: var(--text); }

/* ── hero ────────────────────────────────────────────────────────────── */
.hero { background: var(--bg); overflow: hidden; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .22;
  background-image: linear-gradient(#14161a 1px, transparent 1px), linear-gradient(90deg, #14161a 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 4%, #000 0%, transparent 62%);
}
.hero__inner { position: relative; max-width: var(--max); margin: 0 auto; padding: 122px 28px 0; }
.hero__copy { max-width: 1000px; }
.hero .eyebrow { color: var(--muted); }
.hero h1 { margin: 27px 0 28px; color: #f6f5f1; font-weight: 500; letter-spacing: -.06em; }
.hero h1 span { display: block; color: #7b8087; font-weight: 400; }
.hero__lead { max-width: 610px; color: var(--muted); font-size: 17px; line-height: 1.8; }
.hero__actions { display: flex; align-items: center; gap: 26px; margin-top: 36px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 0; margin: 82px 0 0; border-top: 1px solid var(--line); }
.hero__facts > div { min-width: 138px; padding: 17px 28px 0 0; margin-right: 28px; border-right: 1px solid var(--line); }
.hero__facts > div:last-child { border-right: 0; margin-right: 0; }
.hero__facts dt { font-family: var(--mono); font-size: 12px; color: var(--text); letter-spacing: -.01em; }
.hero__facts dd { margin: 4px 0 0; font-size: 11px; color: var(--muted-2); }

/* hero product window, below the fold */
.hero__stage { position: relative; max-width: 1080px; margin: 92px auto 0; }
.stage__frame { background: var(--paper); color: #16181c; border-radius: 10px 10px 0 0; border: 1px solid #32363e; border-bottom: 0; box-shadow: 0 40px 110px rgba(0,0,0,.55); overflow: hidden; }
.stage__bar { display: flex; align-items: center; gap: 12px; height: 42px; padding: 0 15px; background: #e9e6dd; border-bottom: 1px solid #d4d0c5; }
.stage__dots { display: flex; gap: 5px; }
.stage__dots i { width: 6px; height: 6px; border-radius: 50%; background: #bdb8ad; }
.stage__title { font-size: 10.5px; font-weight: 600; color: #40454d; }
.stage__stamp { margin-left: auto; font-family: var(--mono); font-size: 8px; letter-spacing: .08em; color: #85857f; border: 1px solid #d0ccc1; padding: 2px 6px; border-radius: 2px; }
.stage__body { display: grid; grid-template-columns: 190px 1fr; min-height: 390px; }
.stage__rail { background: #eeebe3; border-right: 1px solid #dbd7cc; padding: 15px 10px; font-size: 10.5px; }
.stage__rail-head { font-size: 9px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #8d8a82; padding: 2px 7px 8px; }
.stage__rail-item { display: flex; align-items: center; gap: 7px; padding: 6px 7px; border-radius: 4px; color: #464b53; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stage__rail-item.is-active { background: #dedbd2; color: #10151c; }
.stage__rail-item--pair { font-size: 9px; }
.stage__rail-label { margin: 15px 7px 4px; font-size: 8px; letter-spacing: .1em; text-transform: uppercase; color: #9b978d; }
.mini-avatar { display: inline-grid; place-items: center; width: 19px; height: 19px; flex: none; border-radius: 50%; color: #fff; font-family: var(--sans); font-size: 8px; font-weight: 700; }
.mini-avatar--red { background: #9b3d2f; }
.mini-avatar--teal { background: #2d6a60; }
.mini-avatar--blue { background: #3e4f9a; }
.mini-avatar--sand { background: #b77635; }
.stage__chat { padding: 16px 16px 12px; display: flex; flex-direction: column; }
.stage__chat-head { display: flex; align-items: center; gap: 8px; font-size: 11.5px; font-weight: 600; padding-bottom: 12px; border-bottom: 1px solid #dcd8ce; }
.stage__badge { font-size: 8px; font-family: var(--mono); color: #777b83; border: 1px solid #d2cec3; padding: 1px 5px; border-radius: 2px; }
.stage__live { margin-left: auto; color: #18794e; font-size: 8.5px; }
.stage__live::before { content: ""; display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: #18794e; margin-right: 4px; vertical-align: 1px; }
.stage__msg { display: flex; gap: 9px; padding: 12px 0 0; }
.stage__msg b { display: block; font-size: 9.5px; color: #626770; font-weight: 500; margin-bottom: 4px; }
.stage__msg p { background: #fbf9f4; border: 1px solid #e2ded4; border-radius: 4px; padding: 9px 11px; font-size: 11px; line-height: 1.6; color: #30353c; max-width: 540px; }
.stage__typing { display: flex; align-items: center; gap: 4px; margin: 18px 0 0 28px; font-size: 9.5px; color: #858991; }
.stage__typing i { width: 3px; height: 3px; border-radius: 50%; background: #9da0a6; animation: blink 1.2s infinite; }
.stage__typing i:nth-child(2) { animation-delay: .18s; }
.stage__typing i:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
.stage__composer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding: 10px 12px; border: 1px solid #d8d4ca; border-radius: 4px; font-size: 10px; color: #93929a; }
.stage__send { display: grid; place-items: center; width: 19px; height: 19px; border-radius: 3px; background: #10151c; color: #fff; font-size: 11px; }
.stage__note { display: flex; justify-content: space-between; gap: 12px; padding: 12px 2px 0; font-family: var(--mono); font-size: 8px; letter-spacing: .06em; color: #5e646d; }
.hero__ticker { position: relative; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 72px; padding: 15px 0; }
.ticker__track { display: flex; width: max-content; gap: 26px; align-items: center; animation: ticker 58s linear infinite; color: #6d727a; font-family: var(--mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.ticker__track i { width: 3px; height: 3px; border-radius: 50%; background: #43474e; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ── sections ────────────────────────────────────────────────────────── */
.section { max-width: var(--max); margin: 0 auto; padding: 152px 28px; }
.section--paper { max-width: none; background: var(--bg-2); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section--paper > .section__head, .section--paper > .deliverables, .section--paper > .trust-grid { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section--paper > .section__head { margin-bottom: 56px; }
.section--ink { max-width: none; background: var(--bg-2); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section--ink > .section__head, .section--ink > .steps, .section--ink > .workspace { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section__head { display: block; margin-bottom: 64px; }
.section__head .kicker { margin-bottom: 24px; }
.section__head h2 { max-width: 1120px; }
.section__intro { max-width: 610px; margin-top: 26px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.section--ink h2 { color: var(--text); }
.section__head--split { }

/* ── capabilities ────────────────────────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature { position: relative; min-height: 270px; padding: 30px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); transition: border-color .2s, background .2s; }
.feature:hover { border-color: #3a3f47; background: var(--panel-2); }
.feature__num { position: absolute; top: 31px; right: 28px; font-family: var(--mono); font-size: 9px; color: var(--muted-2); }
.feature h3 { margin: 0 0 12px; max-width: 88%; font-size: 21px; color: var(--text); }
.feature p { color: var(--muted); font-size: 13px; line-height: 1.75; }
.feature__mock { display: flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 26px; font-size: 10.5px; color: var(--muted); }
.feature__mock .mini-avatar { width: 24px; height: 24px; font-size: 9px; margin-right: -5px; border: 2px solid var(--panel); }
.feature__mock--room .mock-count { margin-left: 8px; font-family: var(--mono); font-size: 9px; color: var(--muted-2); }
.mock-line { margin-left: 4px; color: var(--muted); font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pair-arrow { font-size: 9px; color: var(--muted-2); }
.mock-pill { display: inline-flex; align-items: center; gap: 4px; font-family: var(--mono); font-size: 8px; letter-spacing: .05em; padding: 2px 7px; border: 1px solid #30343b; border-radius: 999px; color: var(--muted); white-space: nowrap; }
.mock-pill--live { color: var(--green); border-color: #254135; background: #0f1b16; }
.feature__mock--data { flex-wrap: wrap; gap: 8px 12px; }
.mock-up { color: var(--green); font-family: var(--mono); font-size: 10px; }
.mock-clock { font-family: var(--mono); font-size: 12px; color: var(--text); border: 1px solid #30343b; padding: 3px 7px; border-radius: 3px; }
.feature__mock--schedule .mock-pill { margin-left: auto; }
.mock-phone { display: inline-grid; place-items: center; width: 37px; height: 21px; border-radius: 3px; background: #1e8f63; color: #fff; font-size: 7px; font-weight: 700; }

/* ── process ─────────────────────────────────────────────────────────── */
.steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.step { display: grid; grid-template-columns: 90px 1fr auto; gap: 30px; align-items: start; padding: 33px 0; border-bottom: 1px solid var(--line); }
.step__num { font-family: var(--mono); font-size: 10px; color: var(--muted-2); padding-top: 6px; }
.step h3 { color: var(--text); font-size: 23px; margin-bottom: 7px; }
.step p { color: var(--muted); font-size: 13px; max-width: 690px; line-height: 1.75; }
.step__tag { font-family: var(--mono); font-size: 8px; letter-spacing: .08em; color: var(--muted-2); border: 1px solid var(--line); padding: 4px 8px; white-space: nowrap; border-radius: 999px; }

/* ── data ────────────────────────────────────────────────────────────── */
.data-board { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.data-cell { min-height: 144px; padding: 20px; background: var(--panel); display: flex; flex-direction: column; justify-content: flex-end; gap: 5px; }
.data-cell__label { font-family: var(--mono); font-size: 8.5px; letter-spacing: .12em; color: var(--muted-2); text-transform: uppercase; margin-bottom: auto; }
.data-cell strong { font-size: 13px; font-weight: 500; color: var(--text); }
.data-cell > span:last-child { font-size: 10.5px; color: var(--muted-2); }
.data-foot { display: flex; align-items: center; gap: 24px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.data-foot .mono { font-size: 8px; letter-spacing: .12em; color: var(--muted-2); margin-right: auto; }
.data-foot p { margin-right: 4px; }

/* ── deliverables ────────────────────────────────────────────────────── */
.deliverables { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 14px; }
.deliverable { padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); display: flex; flex-direction: column; min-height: 154px; }
.deliverable--wide { grid-column: span 2; grid-row: span 2; padding: 30px; }
.deliverable__type { font-family: var(--mono); font-size: 8px; letter-spacing: .14em; color: var(--link); margin-bottom: 18px; }
.deliverable h3 { font-size: 17px; margin-bottom: 6px; color: var(--text); }
.deliverable p { font-size: 12px; color: var(--muted); }
.file-mock { display: flex; align-items: center; gap: 9px; margin-top: auto; padding-top: 19px; font-family: var(--mono); font-size: 9px; color: var(--muted); }
.file-mock__icon { display: grid; place-items: center; width: 22px; height: 26px; border: 1px solid #33373e; color: var(--link); font-family: var(--sans); font-size: 9px; font-weight: 700; background: #16191d; }
.file-mock__icon--green { color: var(--green); }
.file-mock__icon--orange { color: #dda56a; }
.file-mock__icon--blue { color: var(--link); }
.doc-mock { margin-top: auto; padding: 19px 21px; background: var(--paper); color: #181a1d; border-radius: 3px; }
.doc-mock__kicker { display: block; font-family: var(--mono); font-size: 7px; letter-spacing: .1em; color: #2358c9; }
.doc-mock__title { font-size: 15px; font-weight: 600; margin-top: 10px; letter-spacing: -.02em; }
.doc-mock__rule { height: 1px; background: #181a1d; opacity: .25; margin: 10px 0; }
.doc-mock__cols { display: grid; grid-template-columns: 1fr .85fr .7fr; gap: 7px; }
.doc-mock__cols span { display: block; height: 4px; background: #d7d3c9; }
.doc-mock__chart { height: 58px; color: #2358c9; margin: 13px 0 8px; }
.doc-mock__chart svg { width: 100%; height: 100%; }
.doc-mock__foot { display: flex; justify-content: space-between; border-top: 1px solid #d7d3c9; padding-top: 7px; font-family: var(--mono); font-size: 6.5px; color: #77756e; }

/* ── workspace ───────────────────────────────────────────────────────── */
.workspace { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.workspace__copy .kicker { margin-bottom: 22px; }
.workspace__copy h2 { margin-bottom: 24px; }
.workspace__copy > p { max-width: 490px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.check-list { list-style: none; margin: 30px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 13px 22px; }
.check-list li { position: relative; padding-left: 18px; color: #b9bcc2; font-size: 11.5px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 7px; width: 6px; height: 6px; border: 1px solid #565e6a; border-radius: 50%; }
.workspace__panel { background: var(--paper); color: #16181c; border-radius: 6px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.3); }
.panel__head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid #d9d5cb; font-size: 9px; color: #5b6068; }
.panel__head .mock-pill { color: #6f726f; border-color: #d9d5cb; }
.tree { padding: 10px 0; }
.tree__row { display: flex; align-items: center; gap: 9px; min-height: 34px; padding: 0 17px; font-family: var(--mono); font-size: 10px; color: #59606a; }
.tree__row b { font-weight: 600; color: #16181c; }
.tree__row--child { padding-left: 41px; color: #777d86; }
.tree__meta { margin-left: auto; font-family: var(--sans); font-size: 8px; color: #9c9b94; }
.tree__row.is-open { background: #e8e5dc; }
.panel__foot { display: flex; justify-content: space-between; padding: 11px 16px; border-top: 1px solid #d9d5cb; font-size: 8.5px; color: #61666c; }
.panel__foot .mono { color: #2358c9; }

/* ── automation / wechat ─────────────────────────────────────────────── */
.automation { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.auto-card, .wechat-card { border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); padding: 26px; }
.auto-card__head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.auto-card__bot { display: flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 500; }
.auto-row { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line-soft); font-size: 11px; }
.auto-row span { color: var(--muted-2); }
.auto-row strong { font-weight: 400; text-align: right; color: #c4c7cc; }
.auto-log { margin-top: 18px; padding: 14px; background: #0a0c0f; border-left: 2px solid #3f444d; font-size: 10.5px; color: var(--muted); border-radius: 2px; }
.auto-log p { margin: 4px 0 10px; color: #c7cad0; }
.auto-log p:last-child { margin-bottom: 0; }
.auto-log .mono { font-size: 8px; color: var(--muted-2); }
.wechat-card { background: #0a0c0f; }
.wechat-card__top { display: flex; align-items: center; gap: 8px; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 10px; color: var(--muted); }
.wechat-card__dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green); }
.wechat-card__top .mono { margin-left: auto; font-size: 7px; color: var(--muted-2); }
.wechat-bubble { max-width: 83%; margin: 18px 0 0; padding: 10px 13px; border-radius: 7px; font-size: 11px; line-height: 1.65; }
.wechat-bubble--user { margin-left: auto; background: #20242a; color: #e7e9ec; }
.wechat-bubble--bot { display: flex; gap: 9px; background: var(--paper); color: #30353d; }
.wechat-bubble--bot .mini-avatar { margin-top: 2px; }
.wechat-typing { display: flex; align-items: center; gap: 4px; margin-top: 18px; font-size: 9px; color: var(--muted-2); }
.wechat-typing i { width: 3px; height: 3px; border-radius: 50%; background: #737983; animation: blink 1.2s infinite; }

/* ── trust ───────────────────────────────────────────────────────────── */
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.trust { padding: 28px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); }
.trust__num { display: block; font-family: var(--mono); font-size: 9px; color: var(--muted-2); margin-bottom: 46px; }
.trust h3 { font-size: 19px; margin-bottom: 10px; color: var(--text); }
.trust p { color: var(--muted); font-size: 12.5px; line-height: 1.8; }

/* ── FAQ ─────────────────────────────────────────────────────────────── */
.faq { border-top: 1px solid var(--line); max-width: 980px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 22px 38px 22px 0; cursor: pointer; list-style: none; font-size: 17px; font-weight: 400; color: #deddd8; letter-spacing: -.02em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 3px; top: 19px; font-family: var(--sans); font-size: 18px; font-weight: 300; color: var(--muted); transition: transform .18s; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 780px; padding: 0 0 24px; color: var(--muted); font-size: 13px; line-height: 1.85; }

/* ── final CTA / footer ──────────────────────────────────────────────── */
.cta { border-top: 1px solid var(--line); background: var(--bg); }
.cta__inner { max-width: var(--max); margin: 0 auto; padding: 142px 28px 150px; text-align: center; }
.cta .kicker { color: var(--muted-2); }
.cta h2 { margin: 23px 0 20px; font-size: clamp(46px, 6vw, 78px); }
.cta p { color: var(--muted); font-size: 14px; }
.cta__actions { display: flex; align-items: center; justify-content: center; gap: 30px; margin-top: 36px; }
.footer { background: #020203; color: var(--muted-2); border-top: 1px solid var(--line-soft); }
.footer__inner { max-width: var(--max); margin: 0 auto; padding: 44px 28px 36px; display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 22px 36px; align-items: start; }
.footer__brand { display: flex; align-items: center; gap: 9px; color: #e2e1dc; font-size: 13px; font-weight: 500; }
.brand__mark--small { width: 22px; height: 22px; border-radius: 6px; }
.brand__mark--small svg { width: 16px; height: 16px; }
.footer__blurb { font-size: 11px; max-width: 320px; }
.footer__links { display: flex; gap: 24px; font-size: 11px; }
.footer__links a:hover { color: var(--text); }
.footer__copy { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid var(--line-soft); font-family: var(--mono); font-size: 8px; color: #4a4f57; }

/* ── reveal ──────────────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .65s cubic-bezier(.2,.6,.2,1), transform .65s cubic-bezier(.2,.6,.2,1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ── responsive ──────────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .hero__inner { padding-top: 82px; }
  .hero h1 { letter-spacing: -.05em; }
  .hero__stage { margin-top: 64px; }
  .section { padding: 112px 24px; }
  .section__head, .section__head--split { grid-template-columns: 1fr; gap: 18px; }
  .section__intro { grid-column: 1; max-width: 620px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .data-board { grid-template-columns: repeat(2, 1fr); }
  .workspace { grid-template-columns: 1fr; gap: 42px; }
  .deliverables { grid-template-columns: 1fr 1fr; }
  .deliverable--wide { grid-column: span 2; grid-row: auto; }
  .footer__inner { grid-template-columns: 1fr; gap: 16px; }
  .footer__links { flex-wrap: wrap; gap: 14px 22px; }
}
@media (max-width: 720px) {
  .nav__inner { height: 60px; padding: 0 18px; gap: 10px; }
  .nav__links, .nav__actions { display: none; }
  .nav__toggle { display: block; }
  .nav__mobile { display: flex; flex-direction: column; padding: 8px 18px 20px; border-top: 1px solid var(--line); background: var(--bg); }
  .nav__mobile[hidden] { display: none; }
  .nav__mobile a { padding: 12px 2px; font-size: 14px; border-bottom: 1px solid var(--line-soft); color: var(--muted); }
  .nav__mobile a.btn { margin-top: 14px; border-bottom: 0; justify-content: center; color: #08090a; }
  .brand__name { font-size: 15px; }
  .hero__inner { padding: 56px 18px 0; }
  .hero .eyebrow { font-size: 8.5px; padding: 6px 10px; }
  .hero h1 { font-size: clamp(42px, 12.5vw, 62px); margin: 22px 0 22px; line-height: 1.03; }
  .hero__lead { font-size: 14.5px; line-height: 1.8; }
  .hero__actions { flex-direction: column; align-items: flex-start; gap: 18px; margin-top: 28px; }
  .hero__facts { margin-top: 50px; }
  .hero__facts > div { min-width: 0; flex: 1 1 42%; margin-right: 0; padding: 14px 8px 0 0; border-right: 0; }
  .hero__facts dd { font-size: 10px; }
  .hero__stage { margin-top: 44px; }
  .stage__body { grid-template-columns: 118px 1fr; min-height: 330px; }
  .stage__rail { padding: 10px 5px; font-size: 8.5px; }
  .stage__rail-item { padding: 4px 5px; font-size: 8px; gap: 4px; }
  .stage__rail-item--pair { display: none; }
  .stage__rail-label { font-size: 7px; margin-top: 11px; }
  .mini-avatar { width: 15px; height: 15px; font-size: 6px; }
  .stage__chat { padding: 10px; }
  .stage__msg p { font-size: 9px; padding: 6px 7px; }
  .stage__msg b { font-size: 8px; }
  .stage__chat-head { font-size: 9px; padding-bottom: 8px; }
  .stage__note { font-size: 6.5px; }
  .hero__ticker { margin-top: 44px; padding: 12px 0; }
  .section { padding: 82px 18px; }
  .section__head { margin-bottom: 38px; }
  h2 { font-size: clamp(34px, 9.5vw, 46px); }
  .section__intro { font-size: 13.5px; line-height: 1.8; }
  .feature-grid { grid-template-columns: 1fr; gap: 10px; }
  .feature { min-height: 235px; padding: 24px 21px; }
  .feature h3 { font-size: 20px; }
  .data-board { grid-template-columns: 1fr 1fr; }
  .data-cell { min-height: 128px; padding: 16px; }
  .data-cell strong { font-size: 12px; }
  .data-foot { flex-wrap: wrap; gap: 11px 18px; font-size: 10px; }
  .data-foot .mono { width: 100%; }
  .deliverables { grid-template-columns: 1fr; }
  .deliverable--wide { grid-column: auto; }
  .step { grid-template-columns: 34px 1fr; gap: 14px; padding: 24px 0; }
  .step__tag { grid-column: 2; justify-self: start; }
  .step h3 { font-size: 20px; }
  .workspace__copy > p { font-size: 13px; }
  .check-list { grid-template-columns: 1fr; }
  .automation { grid-template-columns: 1fr; }
  .auto-card, .wechat-card { padding: 21px; }
  .trust-grid { grid-template-columns: 1fr; gap: 10px; }
  .trust { padding: 22px; }
  .trust__num { margin-bottom: 20px; }
  .faq summary { font-size: 15px; padding: 19px 30px 19px 0; }
  .faq details p { font-size: 12.5px; }
  .cta__inner { padding: 84px 18px 92px; }
  .cta__actions { flex-direction: column; gap: 20px; }
  .footer__inner { padding: 30px 18px 26px; }
}

/* ── hero globe ─────────────────────────────────────────────────────── */
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 34px;
  align-items: center;
  padding-top: 92px;
}
.hero__copy { max-width: 610px; padding-bottom: 52px; }
.hero h1 { font-size: clamp(46px, 5.3vw, 74px); }
.hero__visual { position: relative; min-width: 0; align-self: end; }
.globe-wrap { position: relative; width: 100%; aspect-ratio: 1; max-height: 690px; margin-left: auto; }
.globe-svg { width: 100%; height: 100%; }
.quote {
  position: absolute;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1px 13px;
  min-width: 156px;
  padding: 9px 11px;
  border: 1px solid #30343a;
  border-radius: 4px;
  background: rgba(8, 9, 11, .84);
  box-shadow: 0 12px 32px rgba(0,0,0,.28);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.quote b { grid-column: 1 / -1; font-family: var(--mono); font-size: 8px; font-weight: 400; letter-spacing: .06em; color: #8a8f97; }
.quote strong { font-family: var(--mono); font-size: 11px; font-weight: 500; color: #ecebe7; }
.quote em { align-self: end; font-style: normal; font-family: var(--mono); font-size: 8px; color: var(--green); }
.quote i { grid-column: 1 / -1; font-style: normal; font-family: var(--mono); font-size: 7px; letter-spacing: .12em; color: #676d76; }
.quote__flag { display: none; }
.quote--cn { top: 36%; left: 3%; }
.quote--sz { top: 49%; left: 13%; }
.quote--hk { top: 22%; right: 8%; }
.quote--us { top: 62%; right: 2%; }
.globe-caption { position: absolute; left: 7%; bottom: 2%; font-family: var(--mono); font-size: 8px; letter-spacing: .1em; color: #646a74; text-transform: uppercase; }
.globe-caption span { margin-left: 7px; padding: 1px 5px; border: 1px solid #2c3036; border-radius: 2px; color: #555b64; font-size: 7px; }
@media (max-width: 1000px) {
  .hero__inner { grid-template-columns: 1fr; gap: 0; padding-top: 74px; }
  .hero__copy { max-width: 700px; padding-bottom: 12px; }
  .hero__visual { width: min(100%, 620px); margin: 12px auto 0; }
  .globe-wrap { max-height: 560px; }
  .quote--cn { left: 1%; }
  .quote--sz { left: 8%; }
  .quote--hk { right: 2%; }
  .quote--us { right: 0; }
}
@media (max-width: 720px) {
  .hero__inner { padding-top: 48px; }
  .hero h1 { font-size: clamp(42px, 12.5vw, 60px); }
  .hero__visual { margin-top: 4px; }
  .globe-wrap { max-height: 420px; }
  .quote { min-width: 128px; padding: 7px 8px; gap: 0 8px; }
  .quote strong { font-size: 9px; }
  .quote em, .quote b { font-size: 7px; }
  .quote--cn { top: 34%; left: 0; }
  .quote--sz { top: 52%; left: 6%; }
  .quote--hk { top: 19%; right: 4%; }
  .quote--us { top: 64%; right: 0; }
  .globe-caption { left: 3%; bottom: 0; }
}

/* ── workflow board ─────────────────────────────────────────────────── */
.flow-board { display: grid; grid-template-columns: 1fr 1.06fr 1.06fr .9fr; gap: 26px; align-items: start; }
.flow-col { position: relative; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.flow-col:not(:last-child)::after { content: ""; position: absolute; top: 47px; right: -17px; width: 10px; border-top: 1px solid #3a3f46; }
.flow-col__label { font-family: var(--mono); font-size: 8px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); padding: 0 2px 6px; }
.flow-card { padding: 15px 15px 14px; border: 1px solid #2a2e34; border-radius: 5px; background: #111317; }
.flow-card__head { display: flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 8px; color: #858a92; margin-bottom: 12px; }
.flow-card__head em { margin-left: auto; font-style: normal; color: #66b48d; }
.flow-card__head b { font-weight: 400; color: #5e646d; font-size: 13px; }
.flow-card strong { display: block; font-size: 12.5px; font-weight: 400; color: #e2e1dc; line-height: 1.5; }
.flow-card small { display: block; margin-top: 10px; font-family: var(--mono); font-size: 8px; color: var(--muted-2); }
.flow-task { display: flex; gap: 11px; align-items: flex-start; padding: 16px; border: 1px solid #2a2e34; border-radius: 5px; background: #0b0d10; }
.flow-user { display: inline-grid; place-items: center; flex: none; width: 23px; height: 23px; border: 1px solid #3a3f46; border-radius: 50%; font-size: 8px; color: #92969d; }
.flow-task p { font-size: 12px; color: #d5d4cf; line-height: 1.6; }
.flow-plan { border: 1px solid #2a2e34; border-radius: 5px; background: #0b0d10; padding: 14px 15px; }
.flow-plan__head { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); }
.flow-plan__head .mono { font-size: 8px; color: var(--muted-2); }
.flow-plan__line { display: flex; align-items: center; gap: 0; margin: 14px 0; }
.flow-plan__line i { flex: 1; height: 1px; background: #3c4d45; }
.flow-plan__line i:first-child { flex: 0 0 5px; height: 5px; border-radius: 50%; background: #66b48d; }
.flow-plan__line i:nth-child(2), .flow-plan__line i:nth-child(3), .flow-plan__line i:nth-child(4), .flow-plan__line i:nth-child(5) { background: #4b8d6e; }
.flow-plan__line i:last-child { flex: 0 0 5px; height: 5px; border-radius: 50%; background: #66b48d; }
.flow-plan__items { display: flex; flex-direction: column; gap: 9px; }
.flow-plan__items span { font-size: 10px; color: #aeb1b7; }
.flow-plan__items i { margin-right: 9px; font-style: normal; font-family: var(--mono); font-size: 7px; color: #5b8d73; }
.flow-file { display: flex; align-items: center; gap: 9px; padding: 14px 13px; border: 1px solid #2d493c; border-radius: 5px; background: #0d1411; font-family: var(--mono); font-size: 9px; color: #d4d7d5; }
.flow-file .file-mock__icon { background: #111c16; border-color: #2d493c; }
.flow-file i { margin-left: auto; font-style: normal; font-family: var(--mono); font-size: 7px; color: #66b48d; }
.flow-foot { display: flex; align-items: center; gap: 24px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 11px; color: var(--muted); }
.flow-foot .mono { font-size: 8px; letter-spacing: .1em; color: var(--muted-2); margin-right: auto; }

/* ── data cards with line art ───────────────────────────────────────── */
.data-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.data-cell { min-height: 255px; padding: 17px 20px 20px; background: var(--panel); display: flex; flex-direction: column; }
.data-art { width: 100%; height: 112px; color: #717780; margin-bottom: auto; }
.data-cell__body { display: flex; flex-direction: column; gap: 4px; }
.data-cell__label { font-family: var(--mono); font-size: 8px; letter-spacing: .12em; color: var(--muted-2); text-transform: uppercase; }
.data-cell strong { font-size: 14px; font-weight: 500; color: #e7e6e2; }
.data-cell > .data-cell__body > span:last-child { font-size: 10.5px; color: var(--muted-2); }

/* ── workspace context pane ─────────────────────────────────────────── */
.workspace__panel-body { display: grid; grid-template-columns: .9fr 1.1fr; min-height: 330px; }
.workspace__panel .tree { padding: 12px 0; border-right: 1px solid #d9d5cb; }
.workspace-context { padding: 22px 19px; background: #f7f5ef; }
.workspace-context__head { font-size: 8.5px; color: #85857c; margin-bottom: 22px; }
.context-row { display: flex; gap: 10px; padding: 0 0 18px; font-size: 10px; line-height: 1.55; color: #4c5158; }
.context-row b { font-weight: 400; color: #9a9991; font-family: var(--mono); font-size: 11px; }
.context-row strong { font-weight: 500; color: #1b1d20; }
.workspace-context__prompt { margin-top: 24px; padding: 11px 12px; border: 1px solid #d9d5cb; border-radius: 3px; background: #fdfbf6; font-family: var(--mono); font-size: 10px; color: #77766f; }
.context-caret { display: inline-block; color: #2358c9; margin-right: 3px; }

/* ── automation table ───────────────────────────────────────────────── */
.auto-table { margin-top: 14px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); overflow: hidden; }
.auto-table__head, .auto-table__row { display: grid; grid-template-columns: 1.4fr 1fr 1fr .7fr .6fr; gap: 16px; align-items: center; padding: 13px 20px; }
.auto-table__head { font-family: var(--mono); font-size: 8px; letter-spacing: .1em; color: var(--muted-2); border-bottom: 1px solid var(--line); text-transform: uppercase; }
.auto-table__row { border-bottom: 1px solid var(--line-soft); font-size: 11px; color: #c9cbd0; }
.auto-table__row:last-child { border-bottom: 0; }
.auto-table__name { display: flex; align-items: center; gap: 8px; color: var(--text); }
.auto-table__status { justify-self: start; padding: 3px 8px; border-radius: 999px; font-family: var(--mono); font-size: 8px; border: 1px solid #2d493c; color: #66b48d; }
.auto-table__status--pause { border-color: #4b3d2a; color: #b99a6c; }
.auto-table__status--done { border-color: #30343b; color: #9a9ea6; }
@media (max-width: 1000px) {
  .flow-board { grid-template-columns: 1fr 1fr; gap: 22px; }
  .flow-col:not(:last-child)::after { display: none; }
  .data-board { grid-template-columns: repeat(2, 1fr); }
  .auto-table__head, .auto-table__row { grid-template-columns: 1.3fr 1fr .8fr .7fr; padding: 12px 16px; }
  .auto-table__head span:nth-child(3), .auto-table__row span:nth-child(3) { display: none; }
}
@media (max-width: 720px) {
  .flow-board { grid-template-columns: 1fr; gap: 20px; }
  .flow-foot { flex-wrap: wrap; gap: 9px 18px; }
  .flow-foot .mono { width: 100%; }
  .data-board { grid-template-columns: 1fr 1fr; }
  .data-cell { min-height: 210px; padding: 12px 14px 16px; }
  .data-art { height: 86px; }
  .workspace__panel-body { grid-template-columns: 1fr; }
  .workspace__panel .tree { border-right: 0; border-bottom: 1px solid #d9d5cb; }
  .workspace__context { padding: 18px 16px; }
  .auto-table { overflow-x: auto; }
  .auto-table__head, .auto-table__row { min-width: 570px; grid-template-columns: 1.3fr 1fr 1fr .7fr .6fr; padding: 12px 14px; }
  .auto-table__head span:nth-child(3), .auto-table__row span:nth-child(3) { display: block; }
}

/* The hero's globe sits behind the copy on wide screens, like a market atlas
   laid under the page rather than a separate illustration column. */
.hero__inner { position: relative; display: block; padding-top: 96px; }
.hero__copy { position: relative; z-index: 2; max-width: 700px; padding-bottom: 46px; }
.hero h1 { font-size: clamp(44px, 4.7vw, 64px); letter-spacing: -.06em; max-width: 680px; }
.hero__visual { position: absolute; z-index: 1; top: 22px; right: -34px; width: 57%; max-width: 700px; opacity: .92; }
.globe-wrap { max-height: 670px; }
.hero__facts { max-width: 660px; }
@media (max-width: 1000px) {
  .hero__inner { display: block; padding-top: 74px; }
  .hero__copy { max-width: 720px; padding-bottom: 10px; }
  .hero__visual { position: relative; top: auto; right: auto; width: min(100%, 620px); margin: 10px auto 0; opacity: 1; }
}
@media (max-width: 720px) {
  .hero__inner { padding-top: 48px; }
  .hero h1 { font-size: clamp(40px, 11.6vw, 56px); max-width: none; }
  .hero__visual { margin-top: 6px; }
}

/* Readability over the atlas: the copy column owns its width, the globe is
   pushed right and only meets the text at its edge. */
.hero__copy { max-width: 660px; }
.hero h1 { font-size: clamp(44px, 4.45vw, 60px); max-width: 650px; }
.hero__lead { max-width: 560px; }
.hero__visual { right: -110px; width: 55%; max-width: 690px; top: 38px; }
.quote--cn { top: 34%; left: 0; }
.quote--sz { top: 53%; left: 8%; }
.quote--hk { top: 20%; right: 0; }
.quote--us { top: 64%; right: -1%; }
@media (max-width: 1000px) {
  .hero__copy { max-width: 720px; }
  .hero h1 { font-size: clamp(42px, 5.6vw, 58px); max-width: 720px; }
  .hero__visual { position: relative; right: auto; top: auto; width: min(100%, 620px); max-width: none; }
}
@media (max-width: 720px) {
  .hero h1 { font-size: clamp(38px, 11.2vw, 54px); max-width: none; }
}

/* Line art needs a little more light than body copy on the black page. */
.data-art { color: #8f959f; }
.data-art circle { fill: #d5d3cc; }

/* A little more presence for the places the reference gives a full plate:
   the data drawings, the workspace window and the automation ledger. */
.data-art { height: 152px; color: #b0b6bf; }
.data-cell { min-height: 300px; }
.data-cell strong { font-size: 15px; }
.workspace { grid-template-columns: .82fr 1.18fr; gap: 66px; }
.workspace__panel-body { min-height: 390px; }
.auto-table__head, .auto-table__row { padding: 15px 22px; }
.auto-table__row { font-size: 12px; }
@media (max-width: 1000px) {
  .workspace { grid-template-columns: 1fr; }
  .data-art { height: 130px; }
  .data-cell { min-height: 260px; }
}
@media (max-width: 720px) {
  .data-art { height: 100px; }
  .data-cell { min-height: 215px; }
  .data-cell strong { font-size: 13px; }
}

.quote em.is-down { color: var(--red); }
@media (max-width: 1100px) {
  .hero__inner { display: block; padding-top: 74px; }
  .hero__copy { max-width: 720px; }
  .hero__visual { position: relative; right: auto; top: auto; width: min(100%, 620px); max-width: none; margin: 10px auto 0; opacity: 1; }
  .hero h1 { font-size: clamp(42px, 5.6vw, 58px); max-width: 720px; }
}

/* spreadsheet window inside the wide deliverable */
.sheet-mock { margin-top: auto; padding: 11px 12px 12px; border: 1px solid #30343a; border-radius: 4px; background: #08090b; }
.sheet-mock__bar { display: flex; align-items: center; gap: 7px; padding-bottom: 9px; border-bottom: 1px solid #23272d; font-family: var(--mono); font-size: 8px; color: #7c818a; }
.sheet-mock__bar .mono { margin-left: auto; font-size: 7px; color: #565c65; }
.sheet-mock__dots { display: flex; gap: 3px; margin-right: 2px; }
.sheet-mock__dots i { width: 4px; height: 4px; border-radius: 50%; background: #3a3f46; }
.sheet-mock__formula { display: flex; align-items: center; gap: 8px; padding: 8px 9px; margin: 9px 0; border: 1px solid #2a2e34; border-radius: 3px; font-family: var(--mono); font-size: 8.5px; color: #babdc2; }
.sheet-mock__formula span { color: #6e747d; font-size: 8px; }
.sheet-mock__grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr .8fr; border-top: 1px solid #23272d; border-left: 1px solid #23272d; }
.sheet-cell { padding: 6px 8px; border-right: 1px solid #23272d; border-bottom: 1px solid #23272d; font-family: var(--mono); font-size: 8.5px; color: #aeb2b8; }
.sheet-head { font-size: 7px; color: #5f656f; background: #0d0f12; }
.sheet-label { color: #d3d4d2; font-family: var(--sans); font-size: 9px; }
.sheet-ok { color: #66b48d; }
.sheet-muted { color: #646a73; }
.sheet-mock__foot { display: flex; justify-content: space-between; gap: 12px; padding-top: 8px; font-size: 8px; color: #6f757d; }
@media (max-width: 720px) {
  .sheet-cell { padding: 5px 6px; font-size: 7.5px; }
  .sheet-mock__foot { font-size: 7px; }
}