/* ==========================================================
   TmSpark H5 · 品牌官网 v2
   视觉语言对齐第一季海报：深蓝黑 · 蓝色光流 · 金色城市灯光 · 玻璃面板
   粗黑居中大标题 · 关键词蓝色渐变发光 · 「—— 小字 ——」分隔 · 发光胶囊按钮
   红色 ✦ 只用于 Logo 与初始 Spark
   ========================================================== */
:root {
  --bg: #03050b;
  --bg-2: #060b18;
  --ink: #f5f7fc;
  --ink-2: #b4bdd0;
  --ink-3: #6f7a90;
  --line: rgba(150, 180, 240, .16);
  --blue: #3d86ff;
  --blue-hi: #8cc2ff;
  --blue-deep: #1b4fd6;
  --gold: #ffc977;
  --red: #ff2e45;
  --glass: linear-gradient(180deg, rgba(26, 42, 84, .5), rgba(8, 14, 32, .55));
  --glass-line: rgba(140, 185, 255, .22);

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;

  --gutter: 22px;
  --gap-title: 48px;
  --gap-qa: 36px;
  --chapter: 112px;
  --topbar: 56px;
}
@media (min-width: 900px) {
  :root { --gutter: 48px; --gap-title: 64px; --gap-qa: 52px; --chapter: 168px; --topbar: 64px; }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: var(--topbar); background: var(--bg); }
body {
  background: var(--bg); color: var(--ink); font-family: var(--font);
  font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased;
  overflow-x: hidden; -webkit-tap-highlight-color: transparent;
}
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; }
.muted { color: var(--ink-3); }
.center { text-align: center; }
.wx-share-img { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.br-d { display: none; }
@media (min-width: 900px) { .br-d { display: inline; } }

/* ---------- 字阶：粗、大、居中；行距 1.16–1.2（Miles 2026-09-23） ---------- */
.h-hero, .h-xl, .h-lg, .h-md { font-weight: 800; letter-spacing: -0.025em; line-height: 1.16; }
.h-hero { font-size: clamp(34px, 9.3vw, 104px); }
.h-xl   { font-size: clamp(40px, 11.6vw, 108px); }
.h-lg   { font-size: clamp(30px, 8.2vw, 74px); }
.h-md   { font-size: clamp(21px, 5.8vw, 38px); line-height: 1.42; font-weight: 700; }
.h-sub  { font-size: clamp(19px, 5.2vw, 32px); color: var(--ink-2); font-weight: 500; line-height: 1.4; margin-top: 18px; }
.h-xl > .muted, .h-lg > .muted { display: inline-block; margin-bottom: .14em; }
.q-answer { margin-top: var(--gap-qa); color: var(--ink-2); }
.gap-pause { margin-top: clamp(56px, 10vh, 120px); }
.wrap { padding: 0 var(--gutter); max-width: 1080px; margin: 0 auto; }

/* 关键词：海报同款蓝色渐变 + 光晕 */
.kw {
  background: linear-gradient(180deg, #f2f8ff 0%, #a9d2ff 38%, #4d95ff 78%, #2f6ff0 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 0 22px rgba(61, 134, 255, .45));
}

/* 「—— 小字 ——」分隔（海报语言） */
.eyebrow {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  font-size: 13px; letter-spacing: .32em; color: var(--ink-2); font-weight: 500;
  margin-bottom: 26px; line-height: 1.4;
}
.eyebrow i { flex: none; width: 36px; height: 1px; background: linear-gradient(90deg, transparent, rgba(160, 195, 255, .7)); }
.eyebrow i:last-child { background: linear-gradient(90deg, rgba(160, 195, 255, .7), transparent); }

/* 玻璃面板 */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: 22px;
  -webkit-backdrop-filter: blur(18px) saturate(140%); backdrop-filter: blur(18px) saturate(140%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07), 0 40px 80px -40px rgba(0, 0, 0, .9);
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: calc(var(--topbar) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) var(--gutter) 0;
  display: flex; align-items: center; justify-content: space-between;
  transition: background .4s;
}
.topbar.solid { background: rgba(3, 5, 11, .7); -webkit-backdrop-filter: blur(18px) saturate(160%); backdrop-filter: blur(18px) saturate(160%); border-bottom: 1px solid rgba(150, 180, 240, .08); }
.logo { font-weight: 800; font-size: 20px; letter-spacing: -0.01em; display: inline-flex; align-items: center; min-height: 44px; }
.logo-spark, .brand-word svg, .dash-brand svg, .ph-ok svg { fill: var(--red); filter: drop-shadow(0 0 6px rgba(255, 46, 69, .75)); }
.logo-spark { width: 11px; height: 11px; margin: -12px 0 0 2px; }
.ask-btn {
  position: relative; min-height: 40px; padding: 0 16px; border-radius: 999px; font-size: 13px; color: var(--ink);
  border: 1px solid var(--glass-line); background: rgba(20, 32, 64, .45);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.ask-btn::after { content: ""; position: absolute; inset: -4px 0; }
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--blue), var(--blue-hi)); z-index: 51; }

/* ---------- 显隐 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1); }
.reveal[data-delay="1"] { transition-delay: .18s; }
.reveal[data-delay="2"] { transition-delay: .36s; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 按钮：海报同款发光胶囊 ---------- */
.cta-glow {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 34px; border-radius: 999px;
  font-weight: 700; font-size: 17px; color: #fff; letter-spacing: .02em;
  background: linear-gradient(180deg, #4a93ff 0%, #2566ea 55%, #1b4fd6 100%);
  border: 1px solid rgba(170, 210, 255, .85);
  box-shadow: 0 0 0 1px rgba(61, 134, 255, .35), 0 0 28px rgba(61, 134, 255, .6), 0 14px 40px -12px rgba(61, 134, 255, .8), inset 0 1px 0 rgba(255, 255, 255, .45);
  transition: transform .2s, box-shadow .3s;
}
.cta-glow:active { transform: scale(.97); }
.cta-glow.big { min-height: 60px; font-size: 18px; padding: 0 40px; }
.cta-glow .arrow { font-weight: 400; }
.cta-text { min-height: 44px; padding: 0 6px; color: var(--ink-2); font-size: 15px; text-decoration: underline; text-decoration-color: rgba(150, 180, 240, .3); text-underline-offset: 6px; }

/* ==========================================================
   01 · HERO：一个很小的红色 Spark，悬在整个市场（夜景地球）之上
   ========================================================== */
.hero { position: relative; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100vh; height: 100svh; pointer-events: none; }
.hero-earth {
  position: absolute; left: 0; right: 0; top: calc(100svh - 38vh); height: 38vh; pointer-events: none; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 45%, #000 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 45%, #000 70%, transparent 100%);
  opacity: 0; animation: fadeIn 2.4s .6s forwards;
}
.hero-earth img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; transform: scale(1.08); }
.hero-screen {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end; align-items: center; text-align: center;
  padding: 0 var(--gutter) calc(30vh + env(safe-area-inset-bottom));
  max-width: 1080px; margin: 0 auto;
}
.hero-tag { opacity: 0; animation: fadeUp 1.2s .3s forwards; margin-bottom: 22px; }
.h-hero .line { display: block; opacity: 0; animation: fadeUp 1.3s forwards; text-shadow: 0 4px 40px rgba(0, 0, 0, .6); }
.h-hero .line:nth-child(1) { animation-delay: .7s; }
.h-hero .line:nth-child(2) { animation-delay: 1.05s; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { to { opacity: 1; } }
.scroll-cue { position: absolute; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom)); width: 1px; height: 44px; background: linear-gradient(rgba(160, 195, 255, .4), transparent); overflow: hidden; opacity: 0; animation: fadeIn 1s 2.2s forwards; }
.scroll-cue i { position: absolute; left: 0; top: -20px; width: 1px; height: 20px; background: #fff; animation: cue 2.2s infinite; }
@keyframes cue { to { transform: translateY(64px); } }

.hero-answer { position: relative; padding: calc(var(--chapter) * .7) var(--gutter) var(--chapter); max-width: 1080px; margin: 0 auto; text-align: center; }
.h-answer { font-size: clamp(30px, 8.4vw, 76px); font-weight: 800; line-height: 1.18; letter-spacing: -0.025em; }
.h-answer span { display: block; }
.h-answer .muted { font-weight: 700; font-size: .66em; margin-bottom: 16px; }
.h-answer .kw { display: inline; }
.support { margin: 36px auto 0; max-width: 22em; color: var(--ink-2); font-size: 16px; line-height: 1.85; }
.hero-ctas { margin-top: 48px; display: flex; flex-direction: column; align-items: center; gap: 16px; }

/* ==========================================================
   02 · SCROLL STORY（sticky）
   ========================================================== */
.story { position: relative; height: 480vh; }
.sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.story-bg, .return-bg { position: absolute; inset: 0; pointer-events: none; }
.story-bg { background: radial-gradient(ellipse 80% 60% at 50% 58%, #0b1a3a 0%, #050a17 55%, var(--bg) 100%); }
.story-bg img { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 32%; object-fit: cover; object-position: 50% 20%; opacity: .55;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 50%); mask-image: linear-gradient(to bottom, transparent, #000 50%); }
.story-canvas, .return-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.story-captions, .ret-captions { position: absolute; left: 0; right: 0; top: calc(var(--topbar) + 22px); padding: 0 var(--gutter); pointer-events: none; text-align: center; }
.cap, .rcap { position: absolute; left: var(--gutter); right: var(--gutter); opacity: 0; transform: translateY(18px); transition: opacity .7s, transform .7s; }
.cap.on, .rcap.on { opacity: 1; transform: none; }
.cap .h-xl, .rcap .h-xl { font-size: clamp(38px, min(11.6vw, 7.4vh), 96px); text-shadow: 0 4px 30px rgba(0, 0, 0, .7); }
.cap .h-lg, .rcap .h-lg { font-size: clamp(28px, min(8vw, 5.2vh), 62px); text-shadow: 0 4px 30px rgba(0, 0, 0, .7); }
.rcap .h-md { font-size: clamp(20px, min(5.8vw, 3.6vh), 36px); }
.story-counter { position: absolute; left: 0; right: 0; bottom: calc(74px + env(safe-area-inset-bottom)); display: flex; justify-content: center; align-items: baseline; gap: 8px; color: var(--ink-2); }
.story-counter b { font-size: 46px; font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; text-shadow: 0 0 24px rgba(61, 134, 255, .6); }
.story-counter span { font-size: 14px; }
.chain { position: absolute; left: var(--gutter); right: var(--gutter); bottom: calc(26px + env(safe-area-inset-bottom)); max-width: 560px; margin: 0 auto; display: flex; list-style: none; gap: 6px; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); text-align: center; }
.chain li { flex: 1; padding-top: 10px; border-top: 2px solid rgba(150, 180, 240, .15); transition: color .5s, border-color .5s, box-shadow .5s; }
.chain li.on { color: var(--ink); border-color: var(--blue); box-shadow: 0 -6px 14px -8px rgba(61, 134, 255, .9); }
.chain li:first-child.on { border-color: var(--red); box-shadow: 0 -6px 14px -8px rgba(255, 46, 69, .9); }

/* ==========================================================
   电影画面：随滚动从圆角卡片放大到铺满（Apple 式）
   ========================================================== */
.scene { position: relative; height: 210vh; }
.scene-tall { height: 240vh; }
.scene-sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.scene-media {
  position: absolute; left: 0; right: 0; top: 9svh; height: 64svh; overflow: hidden;
  transform: scale(calc(.84 + .16 * var(--z, 0)));
  border-radius: calc(26px * (1 - var(--z, 0)));
  will-change: transform;
}
.scene-media img { width: 100%; height: 100%; object-fit: cover; object-position: var(--pos, 50% 50%); transform: scale(calc(1.14 - .14 * var(--z, 0))); }
.scene-media::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(3, 5, 11, calc(.7 * var(--z, 0))) 0%, rgba(3, 5, 11, 0) 22%, rgba(3, 5, 11, 0) 55%, rgba(3, 5, 11, .88) 90%, var(--bg) 100%); }
@media (min-width: 900px) { .scene-media { top: 6vh; height: 74vh; } }
.scene-cap { position: absolute; left: 0; right: 0; bottom: calc(6svh + env(safe-area-inset-bottom)); padding: 0 var(--gutter); text-align: center; opacity: 0; transform: translateY(26px); transition: opacity .9s, transform .9s; }
.scene.cap-on .scene-cap { opacity: 1; transform: none; }
.scene-cap .h-lg { font-size: clamp(28px, min(7.8vw, 5vh), 64px); text-shadow: 0 4px 30px rgba(0, 0, 0, .8); }
.scene-cap .h-md { text-shadow: 0 4px 30px rgba(0, 0, 0, .8); }
.scene-cap .eyebrow { margin-bottom: 18px; }

/* ==========================================================
   03 · MEMBERS
   ========================================================== */
.members { position: relative; padding-bottom: var(--chapter); }
.members-hero { position: relative; min-height: 92svh; display: flex; align-items: flex-start; justify-content: center; overflow: hidden; }
.members-bg { position: absolute; left: 0; right: 0; top: 22svh; bottom: 0; width: 100%; height: calc(100% - 22svh); object-fit: cover; object-position: 50% 30%; opacity: .85;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 22%, #000 72%, transparent 100%); mask-image: linear-gradient(to bottom, transparent 0%, #000 22%, #000 72%, transparent 100%); }
.members-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, var(--bg) 0%, rgba(3, 5, 11, .55) 40%, rgba(3, 5, 11, 0) 60%); z-index: 1; }
.members-title { position: relative; z-index: 2; padding: calc(var(--chapter) * .8) var(--gutter) 0; text-align: center; max-width: 1080px; }
.members-title .h-xl, .members-title .h-md { text-shadow: 0 4px 30px rgba(0, 0, 0, .9), 0 0 60px rgba(0, 0, 0, .8); }
@media (min-width: 900px) { .members-bg { top: 40vh; height: calc(100% - 40vh); opacity: .7; } .members-hero { min-height: 100vh; } }

.net-block { margin: 24px auto 0; padding: 0 var(--gutter); max-width: 1080px; }
.net-hint { font-size: 14px; color: var(--ink-2); margin-bottom: 14px; text-align: center; }
.net { position: relative; height: 440px; max-width: 520px; margin: 0 auto; }
.net svg.links { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.net svg.links line { stroke: rgba(110, 160, 255, .28); stroke-width: 1; transition: stroke .5s; }
.net svg.links line.hot { stroke: rgba(150, 200, 255, .95); stroke-width: 1.6; filter: drop-shadow(0 0 4px rgba(61, 134, 255, .9)); }
.node {
  position: absolute; width: var(--s, 48px); height: var(--s, 48px);
  transform: translate(-50%, -50%); border-radius: 50%; padding: 0; background: #0b1224;
  box-shadow: 0 0 0 1.5px rgba(150, 195, 255, .55), 0 0 16px rgba(61, 134, 255, .35);
  transition: transform .35s, box-shadow .35s, filter .35s; filter: saturate(.85) brightness(.88);
}
.node::before { content: ""; position: absolute; left: -22%; right: -22%; bottom: -26%; height: 36%; border-radius: 50%; border: 1.5px solid rgba(110, 170, 255, .55); box-shadow: 0 0 10px rgba(61, 134, 255, .6); transform: perspective(60px) rotateX(55deg); pointer-events: none; opacity: .7; }
.node::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; }
.node img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; position: relative; }
.node.sel { transform: translate(-50%, -50%) scale(1.24); filter: none; box-shadow: 0 0 0 2px #cfe4ff, 0 0 30px 6px rgba(61, 134, 255, .7); z-index: 2; }
.node.sel::before { opacity: 1; border-color: #9cc9ff; }
.node.pulse { animation: nodePulse 2.4s ease-in-out infinite; }
@keyframes nodePulse { 50% { box-shadow: 0 0 0 1.5px rgba(150, 195, 255, .55), 0 0 0 10px rgba(61, 134, 255, .16); } }

.member-panel { margin: 30px auto 0; max-width: 520px; padding: 24px 22px; }
.mp-head { display: flex; align-items: center; gap: 16px; }
.mp-face { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; box-shadow: 0 0 0 2px var(--blue-hi), 0 0 20px rgba(61, 134, 255, .6); }
.mp-name { font-size: 24px; font-weight: 800; line-height: 1.2; }
.mp-role { color: var(--ink-2); font-size: 15px; line-height: 1.4; }
.mp-campaign { margin-top: 20px; font-size: 13px; color: var(--ink-3); letter-spacing: .04em; }
.mp-stats { margin-top: 10px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.mp-stats dt { font-size: 12px; color: var(--ink-3); line-height: 1.4; }
.mp-stats dd { font-size: clamp(26px, 7.4vw, 36px); font-weight: 800; line-height: 1.2; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.mp-stats div:nth-child(3) dd { color: var(--blue-hi); text-shadow: 0 0 18px rgba(61, 134, 255, .7); }
.mp-quote { margin-top: 22px; padding-left: 14px; border-left: 2px solid var(--blue); color: var(--ink-2); font-size: 15px; line-height: 1.85; }
.panel-swap { animation: swap .45s ease; }
@keyframes swap { from { opacity: .3; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.hammer { min-height: 100svh; margin: calc(var(--chapter) * .6) auto 0; padding: 0 var(--gutter); max-width: 1080px; text-align: center; display: flex; flex-direction: column; justify-content: center; }
.hammer-lead { font-size: clamp(17px, 4.6vw, 24px); line-height: 1.7; color: var(--ink-2); margin-bottom: 44px; font-weight: 500; }
.hammer-line { font-size: clamp(30px, 8.6vw, 76px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.3; }
.hammer-line b { font-size: 1.5em; letter-spacing: -0.04em; margin-right: .12em; font-variant-numeric: tabular-nums; }
.hammer-line + .hammer-line { margin-top: 6px; }
.hammer-last { margin-top: -6px !important; }
.entry-dots { margin: 52px auto 0; display: grid; grid-template-columns: repeat(20, 1fr); gap: 7px; max-width: 440px; width: 100%; }
.entry-dots i { aspect-ratio: 1; border-radius: 50%; background: rgba(127, 176, 255, .14); transition: background .3s, box-shadow .3s; }
.entry-dots i.on { background: radial-gradient(circle at 35% 35%, #e6f2ff, var(--blue-hi) 45%, var(--blue) 100%); box-shadow: 0 0 10px rgba(61, 134, 255, .9); }
.entry-dots i.gold.on { background: radial-gradient(circle at 35% 35%, #fff4dc, var(--gold) 55%, #d98b2b 100%); box-shadow: 0 0 10px rgba(255, 190, 90, .8); }

/* ==========================================================
   04 · PRODUCT PROOF
   ========================================================== */
.proof { position: relative; padding: var(--chapter) 0; background: radial-gradient(ellipse 90% 50% at 50% 60%, rgba(30, 70, 170, .22), transparent 70%); }
.bignums { margin: 72px auto 0; padding: 0 var(--gutter); max-width: 1000px; display: grid; gap: 34px; text-align: center; }
@media (min-width: 800px) { .bignums { grid-template-columns: repeat(3, 1fr); } }
.bignums b { display: block; font-size: clamp(60px, 18vw, 104px); font-weight: 800; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.bignums span { display: block; margin-top: 10px; font-size: 15px; color: var(--ink-2); letter-spacing: .08em; }

.devices { margin: 88px auto 0; padding: 0 12px; max-width: 1180px; display: grid; gap: 64px; align-items: end; }
@media (min-width: 1000px) { .devices { grid-template-columns: 1fr 300px; gap: 48px; padding: 0 var(--gutter); } }
.device-label { margin-top: 18px; text-align: center; font-size: 13px; letter-spacing: .18em; color: var(--ink-3); }

.laptop { max-width: 860px; margin: 0 auto; width: 100%; }
.laptop-screen {
  position: relative; padding: 16px 10px 12px; border-radius: 20px 20px 8px 8px;
  background: linear-gradient(180deg, #151b2a, #0a0e18);
  border: 1px solid rgba(255, 255, 255, .09);
  box-shadow: 0 0 0 1px #000, 0 60px 120px -40px rgba(40, 110, 255, .45), 0 0 90px -30px rgba(61, 134, 255, .5);
}
.laptop-screen::before { content: ""; position: absolute; top: 6px; left: 50%; width: 5px; height: 5px; margin-left: -2.5px; border-radius: 50%; background: #2a3242; }
.laptop-base { position: relative; height: 14px; margin: 0 -3.5%; border-radius: 2px 2px 14px 14px; background: linear-gradient(180deg, #3a4254 0%, #1a1f2b 60%, #0e1119 100%); box-shadow: 0 20px 40px -10px rgba(0, 0, 0, .8); }
.laptop-base::before { content: ""; position: absolute; top: 0; left: 50%; width: 16%; height: 5px; transform: translateX(-50%); border-radius: 0 0 8px 8px; background: #0f131c; }

.dash { border-radius: 10px; background: #080c17; padding: 16px 14px 18px; font-size: 13px; line-height: 1.5; border: 1px solid rgba(150, 180, 240, .08); }
@media (min-width: 800px) { .dash { padding: 24px; } }
.dash-top { display: flex; align-items: center; gap: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); color: var(--ink-3); }
.dash-brand { color: var(--ink); font-weight: 800; display: inline-flex; }
.dash-brand svg { width: 7px; height: 7px; margin: -2px 0 0 1px; }
.dash-crumb::before { content: "/"; margin-right: 10px; opacity: .5; }
.dash-title { margin-top: 16px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.dash-title h3 { font-size: 18px; font-weight: 800; line-height: 1.3; }
.live { flex: none; display: inline-flex; align-items: center; gap: 6px; font-size: 12px; padding: 3px 10px; border-radius: 999px; background: rgba(255, 46, 69, .12); color: #ff8e9a; }
.live i { width: 6px; height: 6px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px var(--red); animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: .25; } }
.dash-sub { color: var(--ink-3); margin-top: 4px; }
.kpis { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
@media (min-width: 800px) { .kpis { grid-template-columns: repeat(6, 1fr); } }
.kpi { padding: 11px 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kpi span { display: block; color: var(--ink-3); font-size: 12px; }
.kpi b { display: block; font-size: 21px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.3; }
.kpi.accent b { color: var(--blue-hi); text-shadow: 0 0 14px rgba(61, 134, 255, .6); }
.dash-row { display: grid; }
@media (min-width: 800px) { .dash-row { grid-template-columns: 1.3fr 1fr; gap: 24px; } }
.dash-pane { margin-top: 20px; }
.dash-pane h4 { font-size: 13px; font-weight: 700; color: var(--ink-2); margin-bottom: 10px; }
.dash-pane .dim { color: var(--ink-3); font-weight: 400; margin-left: 6px; }
.spark-chart { width: 100%; height: 72px; display: block; }
.spark-chart .line { stroke-dasharray: 400; stroke-dashoffset: 400; transition: stroke-dashoffset 1.8s ease; filter: drop-shadow(0 0 4px rgba(61, 134, 255, .8)); }
.dash.in .spark-chart .line { stroke-dashoffset: 0; }
.chart-x { display: flex; justify-content: space-between; color: var(--ink-3); font-size: 11px; margin-top: 4px; }
.bar { height: 6px; border-radius: 3px; background: rgba(255, 255, 255, .06); overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue-deep), var(--blue-hi)); border-radius: 3px; transition: width 1.6s .3s ease; }
.dash.in .bar i { width: var(--w); }
.dash-note { margin-top: 10px; color: var(--ink-3); display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.mini-btn { font-size: 12px; min-height: 32px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--glass-line); color: var(--ink); background: rgba(61, 134, 255, .12); }
.board, .leads { list-style: none; }
.board li { display: grid; grid-template-columns: 32px 1fr auto auto; align-items: center; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); }
.board img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.board .nm { font-weight: 700; line-height: 1.25; }
.board small { display: block; font-weight: 400; color: var(--ink-3); font-size: 11px; }
.board .v { text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; line-height: 1.2; min-width: 38px; }
.board .v.hl { color: var(--blue-hi); }
.leads li { display: grid; grid-template-columns: auto 1fr auto; column-gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); }
.leads b { font-weight: 700; }
.leads span { color: var(--ink-2); }
.leads em { grid-column: 1 / 3; color: var(--blue-hi); font-size: 12px; }
.leads time { grid-row: 1; grid-column: 3; color: var(--ink-3); font-size: 11px; }

/* iPhone 外框 */
.phone-wrap { display: flex; flex-direction: column; align-items: center; }
.phone {
  position: relative; width: 280px; height: 572px; border-radius: 48px; padding: 11px;
  background: linear-gradient(145deg, #4a5366, #1b2130 35%, #0c0f17 70%, #3a4252);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .12), 0 50px 100px -30px rgba(0, 0, 0, .95), 0 0 80px -20px rgba(61, 134, 255, .45);
}
.ph-screen { position: relative; height: 100%; border-radius: 38px; overflow: hidden; background: #f4f5f8; color: #0c1222; font-size: 13px; line-height: 1.5; }
.ph-screen::before { content: ""; position: absolute; top: 9px; left: 50%; width: 86px; height: 25px; transform: translateX(-50%); border-radius: 14px; background: #000; z-index: 3; }
.ph-status { display: flex; justify-content: space-between; padding: 12px 26px 0; font-weight: 700; font-size: 12px; }
.ph-dots { width: 38px; height: 10px; border-radius: 5px; background: #0c1222; opacity: .85; }
.ph-view { position: absolute; inset: 46px 0 0; padding: 12px 18px; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .45s, transform .45s; }
.ph-view.on { opacity: 1; pointer-events: auto; transform: none; }
.ph-hello { font-size: 21px; font-weight: 800; }
.ph-label { margin-top: 16px; font-size: 12px; color: #6a7285; letter-spacing: .1em; }
.ph-card { margin-top: 8px; background: #fff; border-radius: 20px; padding: 10px; box-shadow: 0 8px 28px -8px rgba(12, 18, 34, .22); }
.ph-cover { position: relative; height: 170px; border-radius: 14px; padding: 14px; color: #fff; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden;
  background: linear-gradient(to top, rgba(3, 8, 22, .92), rgba(3, 8, 22, .1) 65%), url(assets/scenes/hub.jpg) 50% 45% / cover; }
.ph-cover span { font-size: 19px; font-weight: 800; line-height: 1.2; }
.ph-cover small { opacity: .8; font-size: 11px; }
.ph-meta { margin: 10px 4px 12px; color: #6a7285; font-size: 12px; }
.ph-join { width: 100%; min-height: 46px; border-radius: 14px; background: linear-gradient(180deg, #3f8cff, #1f5fe0); color: #fff; font-weight: 700; font-size: 15px; box-shadow: 0 8px 20px -8px rgba(31, 95, 224, .8); }
.ph-join:active { transform: scale(.98); }
.ph-view[data-view="loading"] { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; color: #6a7285; }
.ph-spin { width: 34px; height: 34px; border-radius: 50%; border: 3px solid #dde2ec; border-top-color: var(--blue); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.ph-ok { font-size: 17px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.ph-ok svg { width: 14px; height: 14px; }
.ph-mine { margin-top: 12px; }
.ph-cover.mine { height: 226px; justify-content: space-between; }
.ph-host { display: flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, .14); border-radius: 12px; padding: 6px 8px; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.ph-host img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; }
.ph-host span { font-size: 13px !important; font-weight: 700; line-height: 1.25 !important; }
.ph-host small { display: block; font-weight: 400; opacity: .8; font-size: 10px; }
.ph-bind { margin-top: 10px; font-size: 12px; color: #2a5fd6; }
.ph-share { margin-top: 12px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.ph-share span { text-align: center; font-size: 11px; padding: 9px 0; background: #fff; border-radius: 10px; }
.ph-reset { margin-top: 10px; width: 100%; min-height: 36px; font-size: 12px; color: #6a7285; }
.proof-note { margin: 64px auto 0; padding: 0 var(--gutter); max-width: 1080px; color: var(--ink-2); font-size: 17px; line-height: 1.8; text-align: center; }
.proof-note b { color: var(--ink); }

/* ==========================================================
   05 · RETURN FLOW
   ========================================================== */
.return { position: relative; height: 300vh; }
.return-bg { background: radial-gradient(ellipse 80% 60% at 50% 64%, #0c1a3c 0%, #050a17 60%, var(--bg) 100%); }
.return-bg img { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 60%; object-fit: cover; object-position: 50% 60%; opacity: .16; filter: blur(2px) saturate(1.2);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 40%, #000 80%, transparent); mask-image: linear-gradient(to bottom, transparent, #000 40%, #000 80%, transparent); }
.gap-q { margin-top: var(--gap-qa); }
.ticker { list-style: none; margin: 26px auto 0; font-size: 13px; line-height: 1.5; max-width: 420px; text-align: left; }
.ticker li { display: flex; justify-content: space-between; gap: 10px; padding: 10px 14px; margin-bottom: 7px; border-radius: 12px; background: rgba(10, 18, 40, .72); border: 1px solid var(--glass-line); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); animation: tick .6s ease both; box-shadow: 0 0 20px -8px rgba(61, 134, 255, .6); }
.ticker li b { font-weight: 700; }
.ticker li span { color: var(--blue-hi); white-space: nowrap; }
@keyframes tick { from { opacity: 0; transform: translateY(-8px); } }

/* ==========================================================
   升维 · GROWTH（更纯、更安静）
   ========================================================== */
.growth { background: #000; padding-bottom: calc(var(--chapter) * .6); text-align: center; }
.quiet { padding: var(--chapter) var(--gutter) calc(var(--chapter) * .4); max-width: 1080px; margin: 0 auto; }
.growth-lead { margin: 0 var(--gutter); letter-spacing: .14em; }
.idea { padding: calc(var(--chapter) * .6) var(--gutter) 0; max-width: 1080px; margin: 0 auto; }
.idx { display: block; font-size: clamp(60px, 17vw, 132px); font-weight: 800; line-height: .9; letter-spacing: -0.05em; color: transparent; -webkit-text-stroke: 1px rgba(130, 180, 255, .45); margin-bottom: 8px; }
.idea .h-xl { font-size: clamp(38px, 10.6vw, 92px); }
.concl { margin: 44px auto 0; font-size: 18px; line-height: 1.8; color: var(--ink-2); max-width: 22em; }
.concl.big { font-size: clamp(26px, 7.2vw, 54px); font-weight: 800; line-height: 1.26; color: var(--ink); letter-spacing: -0.02em; max-width: none; }
.viz { margin: 44px auto 0; max-width: 520px; }

.viz-stack { display: grid; grid-template-columns: repeat(3, 1fr) auto; align-items: end; gap: 14px; height: 190px; text-align: left; }
.viz-stack .col { height: 100%; display: flex; flex-direction: column-reverse; gap: 3px; position: relative; padding-bottom: 26px; }
.viz-stack .col i { display: block; height: 0; border-radius: 4px; transition: height 1s cubic-bezier(.2, .7, .2, 1); }
.viz-stack.in .col i { height: var(--h); }
.viz-stack .col i:nth-child(1) { background: linear-gradient(180deg, #2552c4, #173a8f); }
.viz-stack .col i:nth-child(2) { background: linear-gradient(180deg, #3d7cf5, #2552c4); transition-delay: .15s; }
.viz-stack .col i:nth-child(3) { background: linear-gradient(180deg, #7fb4ff, #3d7cf5); transition-delay: .3s; }
.viz-stack .col i:nth-child(4) { background: linear-gradient(180deg, #ffe0a6, var(--gold)); box-shadow: 0 0 16px rgba(255, 190, 90, .5); transition-delay: .45s; }
.viz-stack .col:nth-child(2) i { transition-delay: .5s; }
.viz-stack .col:nth-child(3) i { transition-delay: 1s; }
.viz-stack .col span { position: absolute; bottom: 0; left: 0; font-size: 12px; color: var(--ink-3); }
.viz-stack .legend { list-style: none; font-size: 12px; color: var(--ink-3); padding-bottom: 26px; }
.viz-stack .legend li::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 6px; }
.viz-stack .legend li:nth-child(1)::before { background: #2552c4; }
.viz-stack .legend li:nth-child(2)::before { background: #3d7cf5; }
.viz-stack .legend li:nth-child(3)::before { background: #7fb4ff; }
.viz-stack .legend li:nth-child(4)::before { background: var(--gold); }

.viz-grid { display: grid; grid-template-columns: repeat(10, 1fr); gap: 10px; max-width: 290px; }
.viz-grid i { aspect-ratio: 1; border-radius: 50%; background: rgba(255, 255, 255, .08); transition: background .35s, box-shadow .35s; }
.viz-grid i.on { background: radial-gradient(circle at 35% 35%, #e6f2ff, var(--blue-hi) 45%, var(--blue) 100%); box-shadow: 0 0 10px rgba(61, 134, 255, .8); }
.grid-cap { margin-top: 20px; color: var(--ink-3); font-size: 15px; }
.grid-cap b { color: var(--ink); font-size: 32px; font-variant-numeric: tabular-nums; margin-right: 4px; font-weight: 800; }

.viz-scatter { position: relative; height: 210px; }
.viz-scatter svg { width: 100%; height: 100%; overflow: visible; }
.viz-scatter circle.t { fill: rgba(255, 255, 255, .24); transition: fill .8s, opacity .8s; }
.viz-scatter.in circle.t.lost { opacity: .2; }
.viz-scatter.in circle.t.kept { fill: var(--gold); filter: drop-shadow(0 0 4px rgba(255, 190, 90, .9)); }
.viz-scatter line { stroke: var(--blue); stroke-width: 1; opacity: 0; transition: opacity .8s .8s; }
.viz-scatter.in line { opacity: .75; }
.viz-scatter .own { opacity: 0; transition: opacity .8s 1.1s; }
.viz-scatter.in .own { opacity: 1; }
.viz-scatter .own circle { filter: drop-shadow(0 0 6px rgba(61, 134, 255, .9)); }
.viz-scatter .own text { fill: var(--ink-2); font-size: 11px; font-family: var(--font); }

.split { margin: 44px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 520px; text-align: center; }
.split > div { padding: 20px 18px; }
.split h4 { font-size: 13px; letter-spacing: .14em; color: var(--blue-hi); margin-bottom: 12px; font-weight: 700; }
.split .human { border-color: rgba(255, 200, 120, .35); background: linear-gradient(180deg, rgba(80, 56, 20, .35), rgba(20, 14, 6, .5)); }
.split .human h4 { color: var(--gold); }
.split ul { list-style: none; font-size: 17px; line-height: 2.1; color: var(--ink-2); }
.split .human ul { color: var(--ink); font-weight: 700; }

/* ==========================================================
   SYSTEM · 品类占位（极安静）
   ========================================================== */
.system { background: #000; padding: var(--chapter) var(--gutter) calc(var(--chapter) * 1.1); text-align: center; overflow: hidden; }
.system > * { max-width: 1080px; margin-left: auto; margin-right: auto; }
.brand-lock { position: relative; margin-top: clamp(80px, 14vh, 150px); text-align: center; }
.brand-halo { position: absolute; left: 50%; top: 42%; width: min(120vw, 900px); aspect-ratio: 1; transform: translate(-50%, -50%); pointer-events: none;
  background: radial-gradient(circle, rgba(61, 134, 255, .22) 0%, rgba(61, 134, 255, .06) 30%, transparent 60%); }
.brand-halo::before, .brand-halo::after { content: ""; position: absolute; inset: 24%; border-radius: 50%; border: 1px solid rgba(120, 170, 255, .14); }
.brand-halo::after { inset: 34%; border-color: rgba(120, 170, 255, .22); }
.brand-word { position: relative; font-size: clamp(60px, 18.5vw, 170px); font-weight: 800; letter-spacing: -0.04em; line-height: 1; display: inline-flex; text-shadow: 0 0 60px rgba(61, 134, 255, .35); }
.brand-word svg { width: .2em; height: .2em; margin: -.02em 0 0 .04em; }
.brand-pos { position: relative; margin-top: 22px; font-size: clamp(16px, 4.4vw, 26px); letter-spacing: .34em; color: var(--ink-2); }
.core-cap { position: relative; margin-top: 44px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.core-cap span { font-size: 13px; letter-spacing: .4em; color: var(--ink-3); }
.core-cap b { font-size: clamp(30px, 8.4vw, 64px); font-weight: 800; letter-spacing: -0.01em; line-height: 1.2; }
.brand-lock.small .brand-word { font-size: clamp(44px, 13vw, 100px); }
.brand-lock.small .brand-pos { font-size: 15px; margin-top: 12px; }

/* ==========================================================
   DEPLOY
   ========================================================== */
.deploy { padding: var(--chapter) 0; text-align: center; }
.modes { list-style: none; margin: 56px auto 0; padding: 0 var(--gutter); max-width: 1080px; display: grid; gap: 14px; }
@media (min-width: 800px) { .modes { grid-template-columns: repeat(3, 1fr); } }
.modes li { padding: 28px 22px; text-align: center; }
.mode-ico { width: 72px; height: 46px; margin: 0 auto 14px; display: block; }
.mode-ico rect { fill: rgba(61, 134, 255, .08); stroke: var(--blue-hi); stroke-width: 1.4; }
.mode-ico rect.ghost { fill: none; stroke: var(--ink-3); stroke-dasharray: 3 3; }
.mode-ico .s { fill: var(--red); }
.modes h3 { font-size: 22px; font-weight: 800; line-height: 1.3; }
.modes p { margin-top: 8px; color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.modes b { color: var(--ink); font-weight: 700; }
.deploy-key { margin: 72px auto 0; padding: 0 var(--gutter); }

/* ==========================================================
   FINAL CTA
   ========================================================== */
.final { position: relative; padding: var(--chapter) 0 0; overflow: hidden; text-align: center;
  background: radial-gradient(ellipse 70% 40% at 50% 78%, rgba(40, 90, 210, .28), transparent 70%); }
.final-earth { position: absolute; left: 0; right: 0; bottom: 60px; height: 44%; pointer-events: none; opacity: .75;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 50%, transparent 100%); mask-image: linear-gradient(to bottom, transparent 0%, #000 50%, transparent 100%); }
.final-earth img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.final-inner { position: relative; padding: 0 var(--gutter); max-width: 1080px; margin: 0 auto; }
.final .brand-lock { margin-top: 72px; }
.final-tag { position: relative; margin-top: 26px; font-size: clamp(17px, 4.6vw, 24px); line-height: 1.7; color: var(--ink); font-weight: 600; }
.final-chain { position: relative; margin: 64px auto 0; display: inline-flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 4px 7px; font-size: 13px; color: var(--ink); letter-spacing: .04em; padding: 10px 16px; border-radius: 999px; background: rgba(3, 5, 11, .72); border: 1px solid var(--glass-line); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.final-chain i { font-style: normal; color: var(--blue-hi); opacity: .7; }
.final-ctas { margin-top: 52px; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.foot { position: relative; margin-top: 110px; padding: 22px var(--gutter) calc(26px + env(safe-area-inset-bottom)); font-size: 12px; color: var(--ink-3); border-top: 1px solid var(--line); background: rgba(3, 5, 11, .75); }
.foot-modes { display: flex; justify-content: center; margin-bottom: 10px; color: var(--ink-2); font-size: 13px; }
.foot-modes span + span::before { content: "·"; margin: 0 12px; color: var(--ink-3); }

/* ==========================================================
   SHEETS（问题导航 / 适合度 / 预约）
   ========================================================== */
.sheet { position: fixed; inset: 0; z-index: 100; }
.sheet-mask { position: absolute; inset: 0; background: rgba(0, 0, 0, .62); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); animation: fade .3s; }
.sheet-body {
  position: absolute; left: 0; right: 0; bottom: 0; max-height: 88vh; overflow-y: auto;
  background: linear-gradient(180deg, #0f1830, #080d1b); border-radius: 24px 24px 0 0; border-top: 1px solid var(--glass-line);
  padding: 32px var(--gutter) calc(32px + env(safe-area-inset-bottom));
  animation: up .38s cubic-bezier(.2, .8, .2, 1); box-shadow: 0 -30px 80px -30px rgba(61, 134, 255, .35);
}
@media (min-width: 700px) { .sheet-body { left: 50%; right: auto; bottom: 50%; width: 560px; transform: translate(-50%, 50%); border-radius: 24px; border: 1px solid var(--glass-line); animation: fade .3s; } }
@keyframes fade { from { opacity: 0; } }
@keyframes up { from { transform: translateY(100%); } }
.sheet-x { position: absolute; top: 12px; right: 12px; width: 44px; height: 44px; font-size: 26px; color: var(--ink-3); }
.sheet-title { font-size: 24px; font-weight: 800; line-height: 1.3; padding-right: 40px; }
.sheet-sub { margin-top: 10px; color: var(--ink-2); font-size: 15px; line-height: 1.7; }
.qlist { list-style: none; margin-top: 22px; }
.qlist a { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 60px; padding: 14px 0; border-top: 1px solid var(--line); font-size: 17px; line-height: 1.45; font-weight: 600; }
.qlist a::after { content: "→"; color: var(--blue-hi); flex: none; }
.qlist a:active { color: var(--blue-hi); }

.fit fieldset { border: 0; margin-top: 22px; }
.fit legend { font-size: 13px; color: var(--ink-3); margin-bottom: 10px; letter-spacing: .06em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { min-height: 44px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--glass-line); font-size: 15px; color: var(--ink-2); background: rgba(20, 32, 64, .35); transition: all .2s; }
.chips button.on { background: linear-gradient(180deg, #4a93ff, #1f5fe0); color: #fff; border-color: rgba(170, 210, 255, .85); font-weight: 700; box-shadow: 0 0 16px rgba(61, 134, 255, .5); }
.fit-result { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); animation: fade .4s; }
.fit-result h3 { font-size: 20px; line-height: 1.4; }
.fit-result p { margin-top: 10px; color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.fit-result .cta-glow { margin-top: 22px; }

.book { margin-top: 20px; display: grid; gap: 14px; }
.book label span { display: block; font-size: 13px; color: var(--ink-3); margin-bottom: 6px; }
.book input, .book select {
  width: 100%; min-height: 48px; padding: 0 14px; border-radius: 12px;
  background: rgba(3, 6, 16, .8); border: 1px solid var(--glass-line); color: var(--ink); font: inherit; font-size: 16px;
  -webkit-appearance: none; appearance: none;
}
.book select { background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(-45deg, transparent 50%, var(--ink-3) 50%); background-position: calc(100% - 18px) 21px, calc(100% - 13px) 21px; background-size: 5px 5px; background-repeat: no-repeat; }
.book input:focus, .book select:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(61, 134, 255, .2); }
.book .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.book .cta-glow { margin-top: 8px; width: 100%; }
.form-err { color: #ff8e9a; font-size: 14px; }
.book-done { text-align: center; padding: 40px 0 20px; }
.done-spark { width: 36px; height: 36px; fill: var(--red); filter: drop-shadow(0 0 12px rgba(255, 46, 69, .8)); margin-bottom: 20px; }

.debug { position: fixed; left: 8px; right: 8px; bottom: 8px; z-index: 200; max-height: 30vh; overflow: auto; background: rgba(0, 0, 0, .85); border: 1px solid var(--line); border-radius: 8px; padding: 8px; font: 11px/1.5 ui-monospace, Menlo, Consolas, monospace; color: #9fe39f; }

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
  .h-hero .line, .hero-tag, .scroll-cue, .hero-earth { animation: none; opacity: 1; }
  .scene-media { transform: none; border-radius: 0; }
  .scene-cap { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================
   v4 · 审计 P0 + 新收尾
   ========================================================== */
/* 顶栏：问题 + 预约 */
.top-actions { display: flex; align-items: center; gap: 8px; }
.ask-btn { padding: 0 13px; }
.book-btn { min-height: 40px; padding: 0 16px; border-radius: 999px; font-size: 13px; font-weight: 700; color: #fff;
  background: linear-gradient(180deg, #4a93ff, #1f5fe0); border: 1px solid rgba(170, 210, 255, .8); box-shadow: 0 0 16px rgba(61, 134, 255, .5); }

/* 示例标注 */
.demo-tag { margin: 64px auto -40px; text-align: center; font-size: 12px; letter-spacing: .24em; color: var(--ink-3); }
.mp-quote b { display: block; font-size: 12px; letter-spacing: .2em; color: var(--blue-hi); font-weight: 600; margin-bottom: 4px; }

/* 痛点屏 */
.pain { padding: var(--chapter) var(--gutter); max-width: 1080px; margin: 0 auto; text-align: center; }
.pain-list { list-style: none; margin-top: 8px; }
.pain-list li { font-size: clamp(21px, 5.8vw, 48px); font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; padding: 14px 0; }
.pain-list li + li { border-top: 1px solid rgba(150, 180, 240, .1); }
.pain-list li:nth-child(2) { transition-delay: .1s; } .pain-list li:nth-child(3) { transition-delay: .2s; } .pain-list li:nth-child(4) { transition-delay: .3s; }
.pain-end { margin-top: 44px; font-size: clamp(18px, 4.8vw, 28px); line-height: 1.7; color: var(--ink-2); font-weight: 600; }

/* 接入方式（挪到产品证据后） */
.deploy-key { font-size: clamp(17px, 4.6vw, 24px); color: var(--ink-2); line-height: 1.7; max-width: 24em; }

/* 终场 A / B 分流 */
body[data-variant="a"] [data-variant="b"], body[data-variant="b"] [data-variant="a"] { display: none !important; }
.end-b { margin-bottom: 96px; }
.calc-chips { margin: 32px auto 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.calc-chips button { min-height: 48px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--glass-line); background: rgba(20, 32, 64, .45); font-size: 16px; font-weight: 700; color: var(--ink); transition: all .2s; }
.calc-chips button.on { background: linear-gradient(180deg, #4a93ff, #1f5fe0); border-color: rgba(170, 210, 255, .85); box-shadow: 0 0 18px rgba(61, 134, 255, .6); }
.calc-grid { margin: 36px auto 0; }
.calc-result { margin-top: 44px; animation: fadeUp .8s both; }
.calc-note { margin-top: 22px; font-size: 16px; color: var(--ink-3); }
.calc-next { margin-top: 26px; font-size: clamp(18px, 4.8vw, 26px); line-height: 1.7; font-weight: 700; }
.end-brand { margin-top: clamp(72px, 12vh, 130px); }
.core-cap.small { margin-top: 26px; gap: 6px; }
.core-cap.small b { font-size: clamp(18px, 4.8vw, 26px); color: var(--ink); }
.end-line { margin-top: 48px; font-size: clamp(19px, 5.3vw, 38px); font-weight: 800; line-height: 1.45; letter-spacing: -0.01em; }
.final-ctas { margin-top: 40px; }
.cta-promise { font-size: 13px; color: var(--ink-2); letter-spacing: .04em; margin-top: -4px; }
.cta-ghost { min-height: 46px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--glass-line); background: rgba(3, 5, 11, .6); color: var(--ink); font-size: 15px; font-weight: 600;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }

/* 常驻预约条 */
.book-bar { position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); z-index: 40; max-width: 560px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 8px 8px 18px; border-radius: 999px;
  background: rgba(10, 18, 40, .82); border: 1px solid var(--glass-line); -webkit-backdrop-filter: blur(16px) saturate(150%); backdrop-filter: blur(16px) saturate(150%);
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, .8), 0 0 30px -10px rgba(61, 134, 255, .5);
  font-size: 13px; line-height: 1.4; color: var(--ink-2);
  transform: translateY(140%); opacity: 0; transition: transform .45s cubic-bezier(.2, .8, .2, 1), opacity .3s; pointer-events: none; }
.book-bar.show { transform: none; opacity: 1; pointer-events: auto; }
.book-bar button { flex: none; min-height: 42px; padding: 0 20px; border-radius: 999px; font-weight: 700; color: #fff; background: linear-gradient(180deg, #4a93ff, #1f5fe0); border: 1px solid rgba(170, 210, 255, .8); }

/* 表单 */
.consent { font-size: 12px; line-height: 1.6; color: var(--ink-3); }
.book-done .cta-ghost { margin-top: 22px; }
.wx-qr { width: 230px; height: auto; margin: 20px auto 6px; border-radius: 14px; background: #fff; }
.q-book { color: var(--blue-hi); }
@media (max-width: 360px) { .ask-btn { display: none; } }
.end-a .h-xl { font-size: clamp(34px, 9.8vw, 96px); }

/* 标点悬挂：居中标题行尾的问号不参与居中，避免整行视觉偏左（Miles 2026-09-23） */
.hang { margin-right: -1em; }
.h-hero .line { white-space: nowrap; }
/* 渐变字里含放大的数字时，渐变范围要包住大号字，否则「100」上半截透明（Miles 2026-09-23） */
.hammer-last .kw { display: inline-block; padding-top: .24em; line-height: 1.2; }
/* 「全员出击」画面：AI视频营销矩阵 单独成行、放大、拉开间距（Miles 2026-09-23：突出、加深印象） */
.scene-kw { margin-top: 26px; font-size: clamp(42px, 11.4vw, 104px); font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; }
.scene-kw .kw { display: inline-block; padding-top: .08em; filter: drop-shadow(0 0 28px rgba(61, 134, 255, .7)); }
.scene-cap .h-lg { font-size: clamp(24px, min(6.6vw, 4.2vh), 54px); }
/* 字幕整体上移，给底部常驻预约条让位 */
.scene-cap { bottom: calc(6svh + 76px + env(safe-area-inset-bottom)); }
@media (max-width: 899px) { .scene-media { top: 8svh; height: 56svh; } }