/* ==========================================================================
   运达娱乐 · 官网样式表
   视觉语言：广播控制台 / 频道信号 / 浅底大字 + 电光紫 + 荧光绿
   结构：变量 → 基础 → 布局 → 组件 → 页面模块 → 动效 → 响应式
   ========================================================================== */

/* ---------- 变量 ---------- */
:root {
  --ink: #0b0e14;
  --ink-2: #242b38;
  --mute: #6b7280;
  --mute-2: #8b929e;
  --paper: #f4f5f0;
  --paper-2: #e8eae2;
  --card: #ffffff;
  --line: rgba(11, 14, 20, 0.14);
  --line-soft: rgba(11, 14, 20, 0.07);
  --acc: #2d1bf0;
  --acc-ink: #1b0fb0;
  --acc-soft: #e9e6ff;
  --lime: #c9f75a;
  --live: #ff3b30;
  --shell: 1300px;
  --pad: clamp(18px, 4vw, 56px);
  --r: 16px;
  --r-s: 10px;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  --sans: "Helvetica Neue", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--acc); }
h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.14; letter-spacing: -0.035em; font-weight: 800; }
p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.2em; }
li { margin-bottom: 0.45em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
::selection { background: var(--lime); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--acc);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  transition: top 0.2s var(--ease);
}
.skip:focus { top: 12px; color: #fff; }

/* ---------- 布局 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--pad);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.sec { padding: clamp(56px, 8vw, 108px) 0; position: relative; }
.sec--tight { padding: clamp(40px, 5vw, 70px) 0; }
.sec--paper2 { background: var(--paper-2); }
.sec--ink { background: var(--ink); color: #eef0ea; }
.sec--ink h2, .sec--ink h3, .sec--ink a { color: #fff; }
.sec--ink a:hover { color: var(--lime); }

.rule {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 28px;
}
.rule::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* 章节头：左编号 + 标题 + 右侧说明 */
.sechead {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 300px;
  gap: clamp(18px, 3vw, 48px);
  align-items: end;
  margin-bottom: clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
}
.sechead__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.sechead__no b {
  font-family: var(--sans);
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--acc);
  font-weight: 800;
}
.sechead h2 {
  font-size: clamp(26px, 3.4vw, 46px);
  margin: 0;
}
.sechead__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 顶部导航 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(244, 245, 240, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.masthead.is-stuck {
  border-bottom-color: var(--line);
  background: rgba(244, 245, 240, 0.96);
}
.masthead__in {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 74px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--lime);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.05em;
  position: relative;
  overflow: hidden;
}
.brand__mark::after {
  content: "";
  position: absolute;
  inset: auto 0 0 auto;
  width: 9px;
  height: 9px;
  background: var(--live);
  border-radius: 50% 0 0 0;
}
.brand__txt { display: flex; flex-direction: column; line-height: 1.1; }
.brand__cn { font-size: 17px; font-weight: 800; letter-spacing: -0.02em; }
.brand__en {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  color: var(--mute);
  margin-top: 4px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
}
.nav a {
  position: relative;
  font-size: 14.5px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--ink-2);
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}
.nav a:hover { background: rgba(11, 14, 20, 0.05); color: var(--ink); }
.nav a.is-on { color: var(--acc); }
.nav a.is-on::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background: var(--acc);
}

.masthead__act { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.burger span {
  position: absolute;
  left: 11px;
  width: 20px;
  height: 1.6px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.burger span:nth-child(1) { top: 14px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 26px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.drawer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: 66px;
  z-index: 85;
  background: var(--paper);
  padding: 26px var(--pad) 48px;
  display: none;
  overflow-y: auto;
}
.drawer.is-open { display: block; animation: fadeIn 0.22s var(--ease); }
.drawer a.drawer__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 15px 2px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.drawer a.drawer__link span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.1em;
  font-weight: 400;
}
.drawer__act { display: grid; gap: 10px; margin-top: 26px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease);
  white-space: nowrap;
}
.btn:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-1px); }
.btn--solid { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn--solid:hover { background: var(--acc); border-color: var(--acc); color: #fff; }
.btn--acc { background: var(--acc); border-color: var(--acc); color: #fff; }
.btn--acc:hover { background: var(--acc-ink); border-color: var(--acc-ink); color: #fff; }
.btn--ghost { background: transparent; }
.btn--lime { background: var(--lime); border-color: var(--lime); color: var(--ink); }
.btn--lime:hover { background: #fff; border-color: #fff; color: var(--ink); }
.btn--lg { height: 50px; padding: 0 26px; font-size: 15px; }
.btn--block { width: 100%; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  padding: clamp(46px, 7vw, 92px) 0 0;
  background:
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 25% 100%,
    var(--paper);
  overflow: hidden;
}
.hero__top {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(26px, 4vw, 60px);
  align-items: end;
}
.tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 7px 14px 7px 9px;
  margin-bottom: 26px;
}
.tagline i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 4px rgba(255, 59, 48, 0.14);
  animation: pulse 2s infinite;
}
.hero h1 {
  font-size: clamp(38px, 6.1vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  margin: 0 0 26px;
  font-weight: 800;
}
.hero h1 em {
  font-style: normal;
  white-space: nowrap;
  background: linear-gradient(transparent 64%, var(--lime) 64%, var(--lime) 92%, transparent 92%);
}
.hero__lead {
  font-size: clamp(15px, 1.35vw, 18px);
  color: var(--ink-2);
  max-width: 44em;
  line-height: 1.8;
}
.hero__act { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 0; }

.hero__meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 28px;
  margin: 40px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
}
.hero__meta b {
  display: block;
  font-family: var(--sans);
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-top: 5px;
  font-weight: 700;
}

/* 控制台卡片 */
.deck {
  background: var(--ink);
  color: #e7e9e2;
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 30px 70px -30px rgba(11, 14, 20, 0.55);
  position: relative;
  overflow: hidden;
}
.deck::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 240px at 100% 0%, rgba(45, 27, 240, 0.45), transparent 65%),
    radial-gradient(400px 200px at 0% 100%, rgba(201, 247, 90, 0.12), transparent 70%);
  pointer-events: none;
}
.deck__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  position: relative;
}
.deck__head .onair {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--lime);
}
.deck__head .onair::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  animation: pulse 1.8s infinite;
}
.deck__time { letter-spacing: 0.08em; color: rgba(255, 255, 255, 0.75); }
.deck__list { list-style: none; margin: 0; padding: 0; position: relative; }
.deck__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 13px 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  margin: 0;
  font-size: 13.5px;
}
.deck__list li:last-child { border-bottom: 0; }
.deck__no {
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 4px;
  height: 20px;
  display: grid;
  place-items: center;
}
.deck__name small {
  display: block;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 2px;
}
.eq { display: flex; align-items: flex-end; gap: 2px; height: 16px; }
.eq i {
  width: 3px;
  background: var(--lime);
  border-radius: 1px;
  animation: eq 1.1s ease-in-out infinite;
}
.eq i:nth-child(1) { height: 40%; animation-delay: 0.05s; }
.eq i:nth-child(2) { height: 78%; animation-delay: 0.28s; }
.eq i:nth-child(3) { height: 55%; animation-delay: 0.12s; }
.eq i:nth-child(4) { height: 96%; animation-delay: 0.4s; }
.eq i:nth-child(5) { height: 62%; animation-delay: 0.2s; }
.deck__foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.1em;
  padding-top: 14px;
  margin-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  position: relative;
}

/* 数据条 */
.kpi {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  margin-top: clamp(38px, 5vw, 66px);
}
.kpi div {
  padding: 26px 22px 30px 0;
  border-right: 1px solid var(--line-soft);
}
.kpi div:last-child { border-right: 0; }
.kpi b {
  display: block;
  font-size: clamp(30px, 4vw, 52px);
  letter-spacing: -0.05em;
  line-height: 1;
  font-weight: 800;
}
.kpi b span { font-size: 0.45em; letter-spacing: 0; margin-left: 3px; color: var(--acc); }
.kpi p {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mute);
  text-transform: uppercase;
}

/* ---------- 滚动字幕 ---------- */
.ticker {
  background: var(--ink);
  color: var(--lime);
  overflow: hidden;
  border-block: 1px solid var(--ink);
  padding: 11px 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ticker__track {
  display: inline-flex;
  gap: 40px;
  animation: slide 32s linear infinite;
  will-change: transform;
}
.ticker__track span { display: inline-flex; align-items: center; gap: 40px; }
.ticker__track span::after { content: "◆"; color: rgba(201, 247, 90, 0.45); }
.ticker:hover .ticker__track { animation-play-state: paused; }

/* ---------- 业务 Bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}
.bento__cell {
  grid-column: span 2;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px 24px 22px;
  display: flex;
  flex-direction: column;
  min-height: 236px;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.bento__cell:hover {
  transform: translateY(-3px);
  border-color: rgba(45, 27, 240, 0.35);
  box-shadow: 0 18px 40px -28px rgba(11, 14, 20, 0.5);
}
.bento__cell--wide { grid-column: span 3; }
.bento__cell--acc {
  background: var(--acc);
  border-color: var(--acc);
  color: #fff;
}
.bento__cell--acc h3, .bento__cell--acc a { color: #fff; }
.bento__cell--acc p { color: rgba(255, 255, 255, 0.8); }
.bento__cell--acc .bento__tag { color: rgba(255, 255, 255, 0.65); border-color: rgba(255, 255, 255, 0.3); }
.bento__cell--dark { background: var(--ink); border-color: var(--ink); color: #e9ebe4; }
.bento__cell--dark h3 { color: #fff; }
.bento__cell--dark p { color: rgba(255, 255, 255, 0.62); }
.bento__tag {
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 4px 8px;
  margin-bottom: 22px;
}
.bento__cell h3 { font-size: 21px; margin-bottom: 8px; }
.bento__cell p { font-size: 14px; line-height: 1.72; color: var(--mute); margin-bottom: 14px; }
.bento__cell--dark p { color: rgba(255, 255, 255, 0.62); }
.bento__more {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.bento__more::after { content: "→"; transition: transform 0.2s var(--ease); }
.bento__more:hover::after { transform: translateX(3px); }

/* ---------- 频道矩阵 ---------- */
.chan-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.chan {
  display: grid;
  grid-template-columns: 60px minmax(0, 220px) minmax(0, 1fr) 130px;
  gap: 20px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}
.chan:hover { background: rgba(255, 255, 255, 0.6); }
.chan__no { font-family: var(--mono); font-size: 11px; color: var(--acc); letter-spacing: 0.1em; }
.chan__name { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.chan__desc { font-size: 14px; color: var(--mute); margin: 0; }
.chan__stat { font-family: var(--mono); font-size: 11px; color: var(--mute); text-align: right; letter-spacing: 0.06em; }

/* ---------- 流程轨 ---------- */
.rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 2px solid var(--ink);
  margin-top: 10px;
}
.rail__step {
  padding: 24px 22px 26px 0;
  border-right: 1px solid var(--line);
  position: relative;
}
.rail__step:last-child { border-right: 0; }
.rail__step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--acc);
}
.rail__no { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; color: var(--mute); }
.rail__step h3 { font-size: 16.5px; margin: 10px 0 8px; }
.rail__step p { font-size: 13px; color: var(--mute); margin: 0; line-height: 1.65; }

/* ---------- 卡片组 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
}
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--mute); margin-bottom: 0; }
.card__ico {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--acc-soft);
  color: var(--acc);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}
.card--plain { background: transparent; }

/* 案例行 */
.work {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.work li { margin: 0; }
.work a {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 150px 30px;
  gap: 18px;
  align-items: center;
  padding: 24px 6px;
  border-bottom: 1px solid var(--line);
  transition: padding 0.22s var(--ease), background 0.22s var(--ease);
}
.work a:hover { background: #fff; padding-left: 16px; padding-right: 16px; }
.work__no { font-family: var(--mono); font-size: 11px; color: var(--mute); }
.work__t { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; display: block; }
.work__d { font-size: 13.5px; color: var(--mute); margin: 3px 0 0; }
.work__tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--acc);
  text-align: right;
  text-transform: uppercase;
}
.work__arw { font-size: 18px; color: var(--mute-2); text-align: right; }
.work a:hover .work__arw { color: var(--acc); }

/* ---------- 分栏：账户 / 登录 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--card);
}
.split__col { padding: clamp(28px, 3.4vw, 46px); }
.split__col + .split__col { border-left: 1px solid var(--line); }
.split__col--tint { background: var(--paper-2); }
.split__col h3 { font-size: clamp(20px, 2vw, 26px); }
.split__col p { font-size: 14.5px; color: var(--mute); }
.split__list {
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
  font-size: 14px;
}
.split__list li {
  padding: 10px 0 10px 22px;
  border-bottom: 1px dashed var(--line);
  position: relative;
  margin: 0;
}
.split__list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--acc);
  font-size: 11px;
  top: 12px;
}

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--card);
  margin: 26px 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 560px;
}
caption {
  text-align: left;
  padding: 16px 20px 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mute);
  text-transform: uppercase;
}
th, td {
  text-align: left;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
thead th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  background: rgba(11, 14, 20, 0.03);
  font-weight: 500;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(45, 27, 240, 0.035); }
td strong { font-weight: 700; }

/* ---------- 侧栏提示 ---------- */
.note {
  border-left: 3px solid var(--acc);
  background: var(--acc-soft);
  padding: 18px 22px;
  border-radius: 0 var(--r-s) var(--r-s) 0;
  font-size: 13.5px;
  color: var(--ink-2);
  margin: 26px 0;
}
.note strong { color: var(--acc-ink); }
.note--warn { border-left-color: var(--live); background: #fff2f0; }
.note--warn strong { color: #b3261e; }
.note p:last-child { margin-bottom: 0; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 44px 20px 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.015em;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 18px;
  font-family: var(--mono);
  font-size: 20px;
  color: var(--mute);
  font-weight: 400;
  transition: transform 0.2s var(--ease);
}
.faq details[open] summary::after { content: "–"; color: var(--acc); }
.faq details p {
  margin: 0 0 22px;
  font-size: 14px;
  color: var(--mute);
  max-width: 62em;
}
.faq details p:last-child { margin-bottom: 22px; }

/* ---------- CTA ---------- */
.cta {
  background: var(--ink);
  color: #fff;
  padding: clamp(56px, 8vw, 100px) 0;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 320px at 85% 10%, rgba(45, 27, 240, 0.55), transparent 60%),
    radial-gradient(500px 260px at 10% 100%, rgba(201, 247, 90, 0.16), transparent 65%);
  pointer-events: none;
}
.cta__in { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.cta h2 {
  color: #fff;
  font-size: clamp(28px, 4vw, 54px);
  margin-bottom: 14px;
  max-width: 18em;
}
.cta p { color: rgba(255, 255, 255, 0.66); margin: 0; max-width: 46em; font-size: 15px; }
.cta__act { display: flex; gap: 10px; flex-wrap: wrap; }
.cta .btn { border-color: rgba(255, 255, 255, 0.28); color: #fff; }
.cta .btn:hover { border-color: var(--lime); color: var(--lime); }

/* ---------- 页脚 ---------- */
.foot {
  background: #070910;
  color: rgba(255, 255, 255, 0.62);
  padding: clamp(44px, 6vw, 72px) 0 26px;
  font-size: 13.5px;
}
.foot a { color: rgba(255, 255, 255, 0.72); }
.foot a:hover { color: var(--lime); }
.foot__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 56px);
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.foot__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.foot__brand .brand__mark { background: var(--lime); color: var(--ink); }
.foot__brand .brand__mark::after { background: var(--acc); }
.foot__brand b { color: #fff; font-size: 18px; letter-spacing: -0.02em; }
.foot p { color: rgba(255, 255, 255, 0.52); line-height: 1.75; }
.foot h4 {
  color: #fff;
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 6px 0 16px;
  font-weight: 500;
}
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 9px; }
.foot__kw {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.42);
  line-height: 2;
}
.foot__bot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding-top: 22px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- 页头（内页） ---------- */
.pagehead {
  padding: clamp(42px, 6vw, 78px) 0 clamp(28px, 3.5vw, 44px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 25% 100%,
    var(--paper);
}
.crumb {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--mute);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.crumb a { color: var(--mute); }
.crumb a:hover { color: var(--acc); }
.pagehead h1 {
  font-size: clamp(32px, 4.8vw, 64px);
  margin-bottom: 16px;
  max-width: 22em;
}
.pagehead p {
  max-width: 52em;
  color: var(--ink-2);
  font-size: clamp(15px, 1.3vw, 17px);
  margin: 0;
}
.pagehead__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
  text-transform: uppercase;
}
.pagehead__meta span {
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 5px 11px;
  background: #fff;
}

/* ---------- 正文排版 ---------- */
.prose { max-width: 74ch; }
.prose h2 { font-size: clamp(23px, 2.6vw, 32px); margin: 46px 0 16px; }
.prose h3 { font-size: clamp(18px, 1.9vw, 22px); margin: 34px 0 12px; }
.prose p, .prose li { font-size: 15.5px; color: var(--ink-2); line-height: 1.85; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose ul li::marker { color: var(--acc); }
.prose blockquote {
  margin: 30px 0;
  padding: 22px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--acc);
  border-radius: 0 var(--r-s) var(--r-s) 0;
  font-size: 15.5px;
  color: var(--ink-2);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose figure { margin: 32px 0; }
.prose figcaption {
  font-size: 12px;
  color: var(--mute);
  margin-top: 10px;
  font-family: var(--mono);
}
.prose table { min-width: 0; }
.prose .table-wrap { margin: 30px 0; }

/* 文章页布局：正文 + 粘性目录 */
.article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
  padding: clamp(40px, 6vw, 74px) 0;
}
.toc {
  position: sticky;
  top: 100px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px;
  background: #fff;
  font-size: 13px;
}
.toc h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 14px;
}
.toc ol { margin: 0; padding-left: 1.1em; }
.toc li { margin-bottom: 8px; }
.toc a { color: var(--ink-2); }
.toc a:hover { color: var(--acc); }
.toc__cta { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line-soft); }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  padding: 12px 13px;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.field textarea { min-height: 128px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--acc);
  box-shadow: 0 0 0 3px rgba(45, 27, 240, 0.12);
}
.field--row { grid-template-columns: 1fr 1fr; gap: 14px; }
.form__note { font-size: 12.5px; color: var(--mute); margin: 0; }
.form__ok {
  display: none;
  border: 1px solid #b7e07a;
  background: #f2ffe0;
  color: #2f5c00;
  border-radius: 9px;
  padding: 12px 14px;
  font-size: 13.5px;
}
.form__ok.is-show { display: block; }

/* ---------- 账号 / 登录页 ---------- */
.auth {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth__side {
  background: var(--ink);
  color: #fff;
  padding: clamp(36px, 5vw, 80px);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.auth__side::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(560px 280px at 100% 0%, rgba(45, 27, 240, 0.6), transparent 62%),
    radial-gradient(420px 240px at 0% 100%, rgba(201, 247, 90, 0.14), transparent 70%);
}
.auth__side > * { position: relative; }
.auth__side h1 { color: #fff; font-size: clamp(30px, 3.4vw, 48px); max-width: 12em; }
.auth__side p { color: rgba(255, 255, 255, 0.6); max-width: 34em; font-size: 14.5px; }
.auth__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
}
.auth__facts b {
  display: block;
  font-family: var(--sans);
  font-size: 24px;
  letter-spacing: -0.03em;
  color: var(--lime);
  margin-bottom: 3px;
}
.auth__main {
  padding: clamp(32px, 5vw, 80px);
  display: flex;
  align-items: center;
  background: var(--paper);
}
.auth__box { width: min(100%, 420px); margin-inline: auto; }
.auth__box h2 { font-size: 26px; margin-bottom: 8px; }
.auth__box > p { font-size: 14px; color: var(--mute); margin-bottom: 26px; }
.switch {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 3px;
  margin-bottom: 22px;
  background: #fff;
}
.switch button {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 9px;
  border-radius: 7px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--mute);
  cursor: pointer;
}
.switch button.is-on { background: var(--ink); color: #fff; }
.auth__help {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--mute);
}

/* ---------- 404 ---------- */
.err {
  min-height: calc(100vh - 74px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 60px var(--pad);
  background:
    radial-gradient(700px 400px at 50% 0%, rgba(45, 27, 240, 0.12), transparent 65%),
    var(--paper);
}
.err__code {
  font-size: clamp(96px, 20vw, 220px);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.07em;
  color: var(--ink);
  margin: 0;
}
.err__code span { color: var(--acc); }
.err h1 { font-size: clamp(22px, 3vw, 32px); margin: 18px 0 10px; }
.err p { color: var(--mute); max-width: 34em; margin: 0 auto 26px; }

/* ---------- 回到顶部 ---------- */
.top-btn {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  box-shadow: 0 10px 30px -14px rgba(11, 14, 20, 0.5);
}
.top-btn.is-show { opacity: 1; pointer-events: auto; transform: none; }

/* ---------- 动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@keyframes eq {
  0%, 100% { transform: scaleY(0.5); }
  50% { transform: scaleY(1); }
}
@keyframes slide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .masthead__in { gap: 18px; }
  .nav a { padding: 9px 9px; font-size: 13.5px; }
  .masthead__act .btn--ghost { display: none; }
}

@media (max-width: 1080px) {
  .nav { gap: 0; }
  .nav a { padding: 9px 8px; font-size: 13.5px; }
  .sechead { grid-template-columns: 110px minmax(0, 1fr); }
  .sechead__note { grid-column: 2; max-width: 46em; }
  .cta__in { grid-template-columns: 1fr; align-items: start; }
  .foot__top { grid-template-columns: 1fr 1fr; }
  .chan { grid-template-columns: 48px minmax(0, 200px) minmax(0, 1fr); }
  .chan__stat { display: none; }
  .rail { grid-template-columns: repeat(3, 1fr); }
  .rail__step:nth-child(3) { border-right: 0; }
  .rail__step:nth-child(n+4) { border-top: 1px solid var(--line); padding-top: 22px; }
}

@media (max-width: 960px) {
  .masthead__in { height: 66px; gap: 12px; }
  .nav { display: none; }
  .burger { display: block; margin-left: auto; }
  .hero__top { grid-template-columns: 1fr; }
  .deck { max-width: 560px; }
  .hero__meta { gap: 20px; }
  .kpi { grid-template-columns: 1fr 1fr; }
  .kpi div:nth-child(2) { border-right: 0; }
  .kpi div:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
  .grid-2 { grid-template-columns: 1fr; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento__cell, .bento__cell--wide { grid-column: span 1; }
  .split { grid-template-columns: 1fr; }
  .split__col + .split__col { border-left: 0; border-top: 1px solid var(--line); }
  .article { grid-template-columns: 1fr; }
  .toc { position: static; order: -1; }
  .auth { grid-template-columns: 1fr; min-height: 0; }
  .auth__side { padding: 40px var(--pad); }
  .auth__side h1 { font-size: 30px; }
  .auth__main { padding: 38px var(--pad) 60px; }
  .rail { grid-template-columns: 1fr 1fr; }
  .rail__step:nth-child(2n) { border-right: 0; }
  .rail__step:nth-child(3) { border-right: 1px solid var(--line); }
  .rail__step:nth-child(n+3) { border-top: 1px solid var(--line); padding-top: 22px; }
  .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .hero h1 { font-size: clamp(34px, 10vw, 48px); }
  .hero__meta { grid-template-columns: 1fr 1fr; }
  .hero__act .btn { flex: 1 1 auto; }
  .sechead { grid-template-columns: 1fr; gap: 12px; align-items: start; }
  .sechead__no b { font-size: 30px; }
  .sechead__note { grid-column: 1; }
  .kpi { grid-template-columns: 1fr 1fr; }
  .kpi div { padding: 20px 14px 22px 0; }
  .bento { grid-template-columns: 1fr; }
  .chan { grid-template-columns: 34px minmax(0, 1fr); gap: 10px 14px; }
  .chan__desc { grid-column: 2; }
  .work a { grid-template-columns: 34px minmax(0, 1fr) 20px; gap: 12px; }
  .work__tag { display: none; }
  .foot__top { grid-template-columns: 1fr; gap: 28px; }
  .field--row { grid-template-columns: 1fr; }
  .rail { grid-template-columns: 1fr; }
  .rail__step { border-right: 0 !important; border-top: 1px solid var(--line); padding: 20px 0; }
  .rail__step:first-child { border-top: 0; }
  .pagehead__meta { gap: 6px; }
  .cta__act .btn { flex: 1 1 100%; }
  .auth__facts { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; }
}