:root {
  --ink: #14110e;
  --ink-2: #221c17;
  --paper: #f4efe7;
  --paper-2: #ebe4d8;
  --gold: #c6a15b;
  --gold-2: #e7d3a4;
  --gold-deep: #8d6a32;
  --wine: #7c3034;
  --mute: #8d8174;
  --line: rgba(20, 17, 14, 0.1);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --serif: "Songti SC", "STSong", "Noto Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background:
    radial-gradient(900px 480px at 70% 10%, rgba(198, 161, 91, 0.16), transparent 60%),
    #0c0b0a;
  color: var(--paper);
  font-family: var(--sans);
}
button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; }
img, video { display: block; max-width: 100%; }

.stage {
  min-height: 100%;
  display: grid;
  grid-template-columns: 300px 1fr;
}
.brief {
  padding: 48px 36px;
  border-right: 1px solid rgba(198, 161, 91, 0.22);
}
.brief-mark {
  margin: 0;
  font-family: "Didot", "Bodoni MT", "Times New Roman", serif;
  letter-spacing: 0.42em;
  font-size: 13px;
  color: var(--gold);
}
.brief-en {
  margin: 8px 0 0;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: rgba(244, 239, 231, 0.45);
}
.brief h1 {
  margin: 22px 0 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 34px;
  letter-spacing: 0.08em;
}
.brief-lead {
  margin: 14px 0 0;
  color: rgba(244, 239, 231, 0.72);
  line-height: 1.75;
  font-size: 14px;
}
.brief-nav {
  margin-top: 28px;
  display: grid;
  gap: 6px;
}
.brief-nav button {
  text-align: left;
  border: 0;
  background: transparent;
  color: rgba(244, 239, 231, 0.78);
  padding: 8px 0;
  border-bottom: 1px solid rgba(244, 239, 231, 0.08);
  font-size: 13px;
  letter-spacing: 0.06em;
}
.brief-nav button.on { color: var(--gold-2); }
.brief-foot {
  margin-top: 28px;
  color: rgba(244, 239, 231, 0.4);
  font-size: 12px;
  line-height: 1.7;
}
.phone-wrap {
  display: grid;
  place-items: center;
  padding: 28px 16px;
}
.phone {
  width: 390px;
  height: 844px;
  background: #000;
  border: 10px solid #1c1916;
  border-radius: 40px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.screen { height: 100%; background: var(--paper); color: var(--ink); overflow: hidden; }
.app {
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--paper);
  color: var(--ink);
}
.app.ink { background: var(--ink); color: var(--paper); }

.chrome {
  position: relative;
  z-index: 8;
  flex: none;
  height: 88px;
  color: inherit;
}
.chrome.overlay {
  position: absolute;
  left: 0; right: 0; top: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent);
  color: #fff;
}
.wx-status, .wx-nav { display: flex; align-items: center; }
.wx-status {
  height: 32px;
  padding: 8px 18px 0 22px;
  justify-content: space-between;
}
.wx-time { font-size: 15px; font-weight: 700; font-variant-numeric: tabular-nums; }
.wx-sys { display: flex; gap: 6px; align-items: center; }
.wx-nav { height: 44px; position: relative; }
.wx-back, .wx-back-spacer {
  width: 44px; height: 44px;
  border: 0; background: transparent; color: inherit;
  display: grid; place-items: center;
  position: relative; z-index: 2;
}
.wx-title {
  position: absolute;
  left: 88px; right: 108px;
  text-align: center;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wx-capsule {
  position: absolute;
  right: 8px; top: 6px;
  width: 87px; height: 32px;
  border-radius: 16px;
  display: flex; align-items: center;
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.88);
  color: #1a1a1a;
  z-index: 16;
}
.chrome.overlay .wx-capsule,
.app.ink .wx-capsule {
  background: rgba(0, 0, 0, 0.28);
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
}
.wx-capsule > button {
  flex: 1; height: 100%;
  border: 0; background: transparent; color: inherit;
  display: grid; place-items: center; padding: 0;
}
.wx-capsule > button:first-of-type { border-radius: 16px 0 0 16px; }
.wx-capsule > button:last-of-type { border-radius: 0 16px 16px 0; }
.wx-capsule > button:active { background: rgba(127, 127, 127, 0.18); }
.wx-split { width: 1px; height: 18px; background: currentColor; opacity: 0.28; flex: none; }
.wx-menu {
  position: absolute;
  top: calc(100% + 8px); right: 0;
  width: 176px;
  background: #fff;
  color: var(--ink);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
  padding: 6px;
  text-align: left;
}
.wx-menu button {
  display: block; width: 100%;
  text-align: left; border: 0; background: transparent;
  border-radius: 10px; padding: 11px 12px;
  font-size: 14px; color: var(--ink);
}
.wx-menu button:active { background: #f4efe7; }

.main { flex: 1; overflow: auto; -webkit-overflow-scrolling: touch; }
.main.flush { padding-top: 0; }
.pad { padding: 0 20px 28px; }

.tabbar {
  flex: none;
  height: calc(58px + var(--safe-b));
  padding-bottom: var(--safe-b);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(198, 161, 91, 0.2);
  background: #100e0c;
  color: rgba(244, 239, 231, 0.48);
}
.app:not(.ink) .tabbar {
  background: #faf7f2;
  color: #5c5146;
  border-top-color: var(--line);
}
.tabbar button {
  border: 0; background: transparent; color: inherit;
  display: grid; place-items: center; gap: 2px;
  min-width: 0;
  font-size: 11px; letter-spacing: 0.04em;
}
.tabbar button.on { color: var(--gold-deep); }
.app.ink .tabbar button.on { color: var(--gold-2); }
.tabbar svg { width: 20px; height: 20px; }

.hero {
  position: relative;
  height: 520px;
  color: #fff;
  overflow: hidden;
}
.hero img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 10, 8, 0.15) 0%, rgba(12, 10, 8, 0.15) 40%, rgba(12, 10, 8, 0.88) 100%);
}
.hero-copy {
  position: absolute; left: 22px; right: 22px; bottom: 26px; z-index: 1;
}
.kicker {
  margin: 0;
  letter-spacing: 0.42em;
  font-size: 11px;
  color: var(--gold-2);
}
.hero h1 {
  margin: 10px 0 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 42px;
  line-height: 1.15;
  letter-spacing: 0.06em;
}
.hero-sub {
  margin: 10px 0 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.78);
}
.tc {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.14em;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
}
.sprocket {
  position: absolute; left: 0; top: 88px; bottom: 0; width: 14px; z-index: 1;
  background:
    repeating-linear-gradient(180deg, transparent 0 16px, rgba(0,0,0,.45) 16px 26px);
  opacity: 0.55;
}

.section { padding: 22px 20px 8px; }
.section h2, .block h2, .paper-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: 0.08em;
}
.lede {
  margin: 8px 0 0;
  color: var(--mute);
  font-size: 13px;
  line-height: 1.7;
}
.app.ink .lede { color: rgba(244, 239, 231, 0.62); }

.duo { display: grid; gap: 12px; padding: 8px 20px 8px; }
.duo button {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 12px;
  text-align: left;
  border: 0;
  padding: 0;
  background: #1c1814;
  color: var(--paper);
  overflow: hidden;
}
.duo img { width: 92px; height: 92px; object-fit: cover; }
.duo strong { display: block; margin-top: 14px; font-size: 16px; letter-spacing: 0.08em; }
.duo span { display: block; margin-top: 6px; color: rgba(244,239,231,.62); font-size: 12px; line-height: 1.55; }

.reasons { padding: 8px 20px 18px; display: grid; gap: 0; }
.reasons article {
  padding: 14px 0;
  border-top: 1px solid rgba(198, 161, 91, 0.22);
}
.reasons b { display: block; letter-spacing: 0.12em; font-size: 14px; color: var(--gold-2); font-weight: 600; }
.reasons p { margin: 6px 0 0; font-size: 13px; line-height: 1.65; color: rgba(244,239,231,.7); }

.cta-row { padding: 4px 20px 24px; display: grid; gap: 10px; }
.btn-gold, .btn-line, .btn-ink {
  height: 48px;
  border-radius: 0;
  letter-spacing: 0.2em;
  font-size: 14px;
}
.btn-gold {
  border: 0;
  background: linear-gradient(180deg, #ead7a6, #b8893e);
  color: #1a140c;
  font-weight: 700;
}
.btn-line {
  background: transparent;
  color: var(--gold-2);
  border: 1px solid rgba(198, 161, 91, 0.55);
}
.btn-ink {
  background: var(--ink);
  color: var(--gold-2);
  border: 0;
}
.btn-gold:disabled { opacity: 0.55; }

.filters { display: flex; gap: 18px; padding: 4px 20px 12px; }
.filters button {
  border: 0; background: transparent;
  color: rgba(244,239,231,.5);
  padding: 0 0 8px;
  letter-spacing: 0.12em;
  font-size: 14px;
  border-bottom: 1px solid transparent;
}
.filters button.on { color: var(--gold-2); border-bottom-color: var(--gold); }

.work-list { display: grid; gap: 18px; padding: 0 20px 24px; }
.work-card {
  border: 0; padding: 0; background: transparent; color: inherit; text-align: left; width: 100%;
}
.frame {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #000;
  overflow: hidden;
}
.frame img { width: 100%; height: 100%; object-fit: cover; }
.frame .shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.55));
}
.play-badge, .play {
  position: absolute;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.7);
  background: rgba(0,0,0,.28);
  color: #fff;
  display: grid; place-items: center;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
}
.meta-row {
  display: flex; justify-content: space-between; gap: 8px;
  margin-top: 8px; font-size: 12px; letter-spacing: 0.08em; color: rgba(244,239,231,.55);
}
.work-card h3 {
  margin: 4px 0 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.06em;
}

.player-wrap { background: #000; position: relative; }
.player-wrap video { width: 100%; aspect-ratio: 16/9; background: #000; object-fit: cover; }
.play {
  z-index: 2;
}
.detail { padding: 18px 20px 28px; background: var(--paper); color: var(--ink); }
.eyebrow {
  margin: 0;
  color: var(--gold-deep);
  letter-spacing: 0.2em;
  font-size: 12px;
}
.detail h1 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  letter-spacing: 0.06em;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chips span {
  border: 1px solid rgba(141, 106, 50, 0.35);
  color: var(--gold-deep);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 4px 8px;
}
.story { margin: 14px 0 0; line-height: 1.8; font-size: 14px; }
.quote {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  color: #5c5146;
  font-family: var(--serif);
  line-height: 1.7;
}
.chapters { margin-top: 18px; display: grid; gap: 10px; }
.chapters li {
  list-style: none;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
.chapters ol { margin: 0; padding: 0; }
.chapters b { color: var(--gold-deep); font-size: 12px; letter-spacing: 0.08em; }
.note {
  margin-top: 16px;
  padding: 12px;
  background: #f7f1e4;
  color: #6a5b48;
  font-size: 12px;
  line-height: 1.7;
}

.seg {
  display: grid; grid-template-columns: 1fr 1fr;
  margin: 16px 20px 8px;
  border: 1px solid rgba(141, 106, 50, 0.35);
}
.seg button {
  height: 40px; border: 0; background: transparent;
  letter-spacing: 0.12em; color: var(--mute);
}
.seg button.on { background: var(--ink); color: var(--gold-2); }
.plans { display: grid; gap: 12px; padding: 8px 20px 24px; }
.plan {
  border: 1px solid var(--line);
  padding: 16px;
  background: #fffdf9;
  text-align: left;
  width: 100%;
  color: inherit;
}
.plan.hot { border-color: var(--gold); background: #fffaf1; }
.plan .tag {
  font-size: 11px; letter-spacing: 0.16em; color: var(--gold-deep);
}
.plan h3 { margin: 8px 0 0; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.price { margin: 8px 0 0; font-size: 22px; letter-spacing: 0.04em; }
.price small { font-size: 12px; color: var(--mute); margin-left: 6px; }
.plan ul { margin: 10px 0 0; padding: 0 0 0 16px; color: #5e544a; font-size: 13px; line-height: 1.7; }

.form { padding: 8px 20px 28px; display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field span, .check span { font-size: 12px; letter-spacing: 0.08em; color: #7a6d60; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid rgba(20, 17, 14, 0.16);
  background: transparent;
  padding: 10px 0;
  font-size: 16px;
  color: var(--ink);
  border-radius: 0;
}
.field textarea { min-height: 88px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-bottom-color: var(--gold-deep);
}
.err { color: var(--wine); font-size: 12px; min-height: 16px; }
.check {
  display: flex; gap: 8px; align-items: flex-start;
  font-size: 13px; line-height: 1.55; color: #4e453c;
}
.check input { margin-top: 3px; }
.steps { display: flex; gap: 8px; padding: 0 20px; }
.steps i { flex: 1; height: 2px; background: #e4dccf; }
.steps i.on { background: var(--gold-deep); }
.file-row { font-size: 13px; color: #5e544a; }
.thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.thumbs img { width: 64px; height: 64px; object-fit: cover; }

.list { display: grid; gap: 10px; padding: 8px 20px 24px; }
.rec {
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #fffdf9;
}
.rec b { display: block; letter-spacing: 0.06em; }
.rec p { margin: 6px 0 0; color: #6d6258; font-size: 13px; line-height: 1.55; }
.badge {
  display: inline-block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.channel-hero {
  padding: 8px 20px 0;
}
.support { display: grid; gap: 0; padding: 8px 20px 12px; }
.support article {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.support b { letter-spacing: 0.08em; }
.support p { margin: 4px 0 0; color: #6d6258; font-size: 13px; line-height: 1.6; }

.mine-head {
  padding: 12px 20px 8px;
}
.mine-head .mark {
  font-family: "Didot", "Times New Roman", serif;
  letter-spacing: 0.36em;
  color: var(--gold-deep);
  font-size: 13px;
}
.links { display: grid; padding: 8px 8px 20px; }
.links button {
  text-align: left;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  margin: 0 12px;
  padding: 14px 0;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--ink);
  display: flex; justify-content: space-between;
}

.legal { padding: 8px 20px 28px; }
.legal p { line-height: 1.8; font-size: 14px; color: #3f3832; }
.legal h2 { font-family: var(--serif); font-weight: 500; font-size: 22px; margin: 18px 0 8px; }

.sheet, .toast-wrap { position: absolute; inset: 0; z-index: 30; }
.sheet { background: rgba(0,0,0,.45); display: grid; align-items: end; }
.sheet-card {
  background: #fffdf9;
  color: var(--ink);
  padding: 22px 20px calc(20px + var(--safe-b));
}
.sheet-card h3 { margin: 0; font-family: var(--serif); font-weight: 500; font-size: 24px; }
.sheet-card p { color: #6d6258; line-height: 1.7; font-size: 14px; }
.toast {
  position: absolute;
  left: 50%; top: 46%;
  transform: translate(-50%, -50%);
  background: rgba(20, 16, 12, 0.88);
  color: #fff;
  padding: 12px 16px;
  font-size: 13px;
  letter-spacing: 0.06em;
  max-width: 240px;
  text-align: center;
  z-index: 40;
}
.empty { padding: 28px 20px; color: var(--mute); line-height: 1.7; font-size: 14px; }

@media (max-width: 860px) {
  .stage { display: block; }
  .brief { display: none; }
  .phone-wrap { padding: 0; min-height: 100%; }
  .phone {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
}