/* 得意黑 Smiley Sans —— 仅有 Oblique 字形，用作标题展示字体 */
@font-face {
  font-family: "Smiley Sans";
  src: url("smiley-sans-v2.0.1/SmileySans-Oblique.otf.woff2") format("woff2"),
    url("smiley-sans-v2.0.1/SmileySans-Oblique.ttf") format("truetype");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --font-display: "Smiley Sans", -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  --bg-soft: #f4faf5;
  --ink: #1f2937;
  --muted: rgba(31, 41, 55, 0.58);
  --line: rgba(31, 41, 55, 0.1);
  --dark: #0b2e18;
  --brand: #21a848;
  --brand-dark: #0f6b34;
  --brand-light: #6fbf44;
  --green: #21a848;
  --blue: #6fb8ff;
  --orange: #ffb27a;
  --pink: #ff9bc7;
  --lilac: #b9a8ff;
  --red: #ff8d8d;
  --amber: #ffcf7a;
  --radius: 2rem;
  --shadow: 0 30px 80px rgba(20, 30, 45, 0.14);
  --shadow-sm: 0 18px 50px rgba(20, 30, 45, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", "PingFang SC", sans-serif;
  font-size: 17px;
  line-height: 1.5;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

/* 得意黑用于标题与展示性数字 */
h1,
h2,
h3,
h4,
.brand,
.hero-title,
.members-title,
.big-stat,
.ring b {
  font-family: var(--font-display);
  font-style: normal;
}

/* ---------- 通用排版 ---------- */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.6rem;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-dark {
  color: #ffffff;
  background: linear-gradient(135deg, #34b96a 0%, var(--brand) 100%);
  box-shadow: 0 10px 26px rgba(33, 168, 72, 0.26);
}

.button-dark:hover {
  background: linear-gradient(135deg, #2fb163 0%, #1c9540 100%);
  box-shadow: 0 12px 30px rgba(33, 168, 72, 0.32);
}

.button-lg {
  min-height: 3.1rem;
  padding: 0.85rem 1.5rem;
  font-size: 1.02rem;
}

.button-ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(20, 30, 45, 0.06);
}

.button-ghost:hover {
  background: #fff;
  box-shadow: 0 10px 28px rgba(20, 30, 45, 0.1);
}

.apple-glyph {
  width: 0.95rem;
  height: 1.05rem;
  background: currentColor;
  -webkit-mask: radial-gradient(circle at 70% 8%, transparent 0 14%, #000 15%) top right / 60% 38% no-repeat,
    radial-gradient(ellipse 60% 60% at 50% 60%, #000 60%, transparent 62%) bottom / 100% 74% no-repeat;
  mask: radial-gradient(circle at 70% 8%, transparent 0 14%, #000 15%) top right / 60% 38% no-repeat,
    radial-gradient(ellipse 60% 60% at 50% 60%, #000 60%, transparent 62%) bottom / 100% 74% no-repeat;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 750;
  font-size: 1.15rem;
}

.brand-mark {
  width: 1.7rem;
  height: 1.7rem;
  object-fit: contain;
  display: block;
}

.stars {
  color: #ffb400;
  letter-spacing: 0.05em;
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  z-index: 50;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(46rem, calc(100% - 1.5rem));
  padding: 0.5rem 0.55rem 0.5rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 40px rgba(20, 30, 45, 0.12);
  backdrop-filter: blur(20px);
}

.nav-links {
  display: flex;
  gap: 1.4rem;
  margin-left: auto;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-links a[aria-current="page"] {
  color: var(--brand-dark);
  font-weight: 650;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100svh;
  padding: 9rem 1.25rem 0;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, #eaf1fb 0%, #f3f6fb 45%, #fbfcf8 100%);
}

.aurora {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.aurora-band {
  position: absolute;
  left: 50%;
  top: 52%;
  width: 150%;
  height: 34rem;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  filter: blur(46px);
  opacity: 0.65;
}

.band-1 {
  background: conic-gradient(
    from 200deg at 50% 50%,
    transparent,
    var(--green),
    var(--blue),
    var(--lilac),
    var(--pink),
    var(--orange),
    transparent
  );
  animation: drift 22s linear infinite;
}

.band-2 {
  height: 22rem;
  opacity: 0.5;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.7), transparent 60%);
}

.band-3 {
  height: 40rem;
  width: 170%;
  opacity: 0.4;
  background: linear-gradient(90deg, transparent, rgba(111, 184, 255, 0.5), rgba(255, 155, 199, 0.5), rgba(67, 217, 138, 0.5), transparent);
  animation: drift 30s linear infinite reverse;
}

@keyframes drift {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 76rem;
}

.hero-title {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 800;
}

/* 第二行「更智能、更高效、更有温度」与标题同字号，整行不换行 */
.hero-line2 {
  display: block;
  white-space: nowrap;
  letter-spacing: -0.045em;
}

.hero-sub {
  max-width: 32rem;
  margin: 1.1rem auto 1.8rem;
  color: var(--muted);
  font-size: clamp(0.92rem, 1.5vw, 1.08rem);
}

.hero-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-phone-wrap {
  position: relative;
  z-index: 1;
  margin-top: 3.8rem;
  filter: drop-shadow(0 40px 60px rgba(20, 30, 45, 0.22));
}

/* ---------- 手机外框 ---------- */
.phone {
  position: relative;
  width: 17rem;
  aspect-ratio: 0.485;
  padding: 0.5rem;
  border-radius: 2.8rem;
  background: linear-gradient(160deg, #2b2d33, #111216);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.08), var(--shadow);
}

.phone-hero {
  width: 19rem;
}

.phone-sm {
  width: 15.5rem;
}

.phone-notch {
  position: absolute;
  z-index: 3;
  top: 0.85rem;
  left: 50%;
  width: 5rem;
  height: 1.1rem;
  border-radius: 999px;
  background: #050506;
  transform: translateX(-50%);
}

.phone-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 2.35rem;
  background: #f6f8fb;
  color: var(--ink);
}

/* ---------- App 通用 UI ---------- */
.app {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  height: 100%;
  padding: 2.4rem 0.9rem 1rem;
  font-size: 0.8rem;
}

.app-status {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  font-weight: 600;
  opacity: 0.7;
}

.app-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
}

.app-head.light,
.app-dark .app-head {
  color: #fff;
}

.app-eyebrow {
  font-weight: 700;
  font-size: 0.95rem;
}

.temp {
  font-size: 0.72rem;
  opacity: 0.6;
}

.pill {
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 600;
  color: #1b8a4e;
  background: rgba(67, 217, 138, 0.18);
}

.pill-blue { color: #1d72b8; background: rgba(111, 184, 255, 0.22); }
.pill-orange { color: #b9621f; background: rgba(255, 178, 122, 0.24); }
.pill-green { color: #1b8a4e; background: rgba(67, 217, 138, 0.2); }

.ring-row {
  display: flex;
  justify-content: space-around;
  margin: 0.4rem 0;
}

.ring {
  display: grid;
  place-items: center;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  text-align: center;
  background: radial-gradient(circle, #fff 0 56%, transparent 57%),
    conic-gradient(var(--green) 0 var(--p, 70%), rgba(22, 24, 29, 0.1) 0);
}

.ring b {
  font-size: 0.85rem;
}

.ring span {
  position: absolute;
  margin-top: 4.4rem;
  font-size: 0.62rem;
  color: var(--muted);
}

.ring-strain { --p: 40%; background: radial-gradient(circle, #fff 0 56%, transparent 57%), conic-gradient(var(--orange) 0 40%, rgba(22,24,29,0.1) 0); }
.ring-recovery { --p: 86%; background: radial-gradient(circle, #fff 0 56%, transparent 57%), conic-gradient(var(--green) 0 86%, rgba(22,24,29,0.1) 0); }
.ring-sleep { --p: 92%; background: radial-gradient(circle, #fff 0 56%, transparent 57%), conic-gradient(var(--blue) 0 92%, rgba(22,24,29,0.1) 0); }

.big-ring {
  width: 7rem;
  height: 7rem;
  align-self: center;
  margin: 0.6rem 0 1.6rem;
}

.big-ring b { font-size: 1.4rem; }
.big-ring span { margin-top: 8.2rem; }

.app-note {
  padding: 0.6rem 0.7rem;
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: inset 0 0 0 1px var(--line);
}

.app-note.small { font-size: 0.72rem; }
.app-note p { color: var(--muted); margin-top: 0.2rem; font-size: 0.72rem; }

.app-energy { margin-top: auto; font-size: 0.7rem; color: var(--muted); }
.energy-bars { display: flex; gap: 0.18rem; align-items: end; height: 2.2rem; margin-top: 0.3rem; }
.energy-bars i { flex: 1; border-radius: 2px; background: linear-gradient(180deg, var(--green), #bdf3d6); }
.energy-bars i:nth-child(odd) { height: 60%; }
.energy-bars i:nth-child(even) { height: 90%; }
.energy-bars i:nth-child(3n) { height: 45%; background: linear-gradient(180deg, var(--orange), #ffe0c8); }

.big-stat {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.big-stat small {
  display: block;
  font-size: 0.66rem;
  font-weight: 500;
  color: var(--muted);
}

.big-stat.light { color: #fff; }
.big-stat.light small { color: rgba(255, 255, 255, 0.6); }

.line-chart svg { width: 100%; height: 3.5rem; }
.line-chart polyline { fill: none; stroke: var(--orange); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

.app-dark { background: linear-gradient(180deg, #21242c, #15171c); color: #fff; }
.hypnogram { display: flex; gap: 0.15rem; align-items: end; height: 2.6rem; }
.hypnogram i { flex: 1; border-radius: 2px; background: var(--blue); }
.hypnogram i:nth-child(3n) { height: 40%; background: var(--lilac); }
.hypnogram i:nth-child(3n+1) { height: 75%; background: #2f6fb3; }
.hypnogram i:nth-child(3n+2) { height: 95%; background: var(--blue); }

.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem; }
.mini-grid div { padding: 0.4rem 0.5rem; border-radius: 0.6rem; background: rgba(255, 255, 255, 0.08); }
.mini-grid b { font-size: 0.85rem; }
.mini-grid span { display: block; font-size: 0.62rem; color: rgba(255, 255, 255, 0.55); }

.app-scenic { background: linear-gradient(180deg, #cfe6f7 0%, #eaf3e9 100%); }
.dual-stat { display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem; }
.dual-stat div { padding: 0.5rem; border-radius: 0.7rem; background: rgba(255, 255, 255, 0.85); }
.dual-stat span { display: block; font-size: 0.62rem; color: var(--muted); }
.dual-stat b { font-size: 0.85rem; }

.tabs { display: flex; gap: 0.3rem; font-size: 0.66rem; }
.tabs span { padding: 0.2rem 0.5rem; border-radius: 999px; background: rgba(22, 24, 29, 0.06); }
.tabs span.on { color: #fff; background: #15161a; }
.record { display: flex; justify-content: space-between; padding: 0.5rem 0.6rem; border-radius: 0.7rem; background: rgba(255, 255, 255, 0.85); box-shadow: inset 0 0 0 1px var(--line); }
.record b { font-size: 0.72rem; }
.record span { font-size: 0.62rem; color: var(--muted); }

/* chat */
.app-chat { background: linear-gradient(180deg, #eef1f7, #f6f3f7); }
.chat-head { display: flex; align-items: center; gap: 0.4rem; font-size: 0.72rem; color: var(--muted); justify-content: center; }
.bubble { max-width: 80%; padding: 0.5rem 0.7rem; border-radius: 1rem; font-size: 0.72rem; }
.bubble.user { align-self: flex-end; color: #fff; background: #3c9bff; border-bottom-right-radius: 0.3rem; }
.bubble.bot { align-self: flex-start; background: #fff; box-shadow: inset 0 0 0 1px var(--line); border-bottom-left-radius: 0.3rem; }
.think { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.66rem; color: var(--muted); }
.chat-input { margin-top: auto; padding: 0.55rem 0.8rem; border-radius: 999px; background: #fff; color: var(--muted); font-size: 0.7rem; box-shadow: inset 0 0 0 1px var(--line); }
.source { padding: 0.45rem 0.6rem; border-radius: 0.7rem; background: #fff; box-shadow: inset 0 0 0 1px var(--line); }
.source b { font-size: 0.7rem; }
.source span { display: block; font-size: 0.6rem; color: var(--muted); }
.mock-button { margin-top: auto; align-self: flex-end; padding: 0.45rem 1.1rem; border: 0; border-radius: 999px; background: #15161a; color: #fff; font: inherit; font-size: 0.72rem; font-weight: 600; }

/* ---------- Works with ---------- */
.works {
  padding: 4rem 1.25rem 5rem;
  text-align: center;
}

.awards {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 2.4rem;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.2;
}

.works-label {
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 1.4rem;
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2.6rem;
  color: rgba(22, 24, 29, 0.55);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ---------- 百万会员 ---------- */
.members {
  padding: 2rem 0 6rem;
  text-align: center;
}

.members-title {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
  font-weight: 800;
  margin-bottom: 3rem;
  padding: 0 1rem;
}

.photo-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.photo-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  padding: 0 1rem;
  animation: marquee 40s linear infinite;
}

.ph {
  width: 12rem;
  height: 16rem;
  border-radius: 1.4rem;
  flex: none;
  box-shadow: var(--shadow-sm);
}

.ph-a { background: linear-gradient(135deg, #c9d8e8, #aab9cc); }
.ph-b { background: linear-gradient(135deg, #d8c9b0, #b59c7e); height: 13rem; align-self: center; }
.ph-c { background: linear-gradient(135deg, #b7d4c0, #8db59c); }
.ph-d { background: linear-gradient(135deg, #c7c0d8, #9b8db5); height: 14rem; align-self: center; }
.ph-e { background: linear-gradient(135deg, #d8c0c9, #b58d9c); }
.ph-f { background: linear-gradient(135deg, #c0cdd8, #8da3b5); height: 13rem; align-self: center; }

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- 区块标题 ---------- */
.section-head {
  max-width: 60rem;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.section-head.left { text-align: left; margin-left: 0; padding: 0 1.5rem; }
.section-head.center { text-align: center; }

.section-head h2,
.confidence h2,
.feature-copy h2,
.intel-head h2,
.privacy-card h2,
.cta h2 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  font-weight: 800;
}

.section-head p {
  margin-top: 1rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
}

/* ---------- Start the day ---------- */
.confidence {
  padding: 5rem 1.25rem 6rem;
  max-width: 76rem;
  margin: 0 auto;
}

.metric-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.metric-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2rem 1.6rem 0;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #eef2f9, #e6ebf4);
  overflow: hidden;
}

.metric-copy h3 { font-size: 1.5rem; letter-spacing: -0.02em; }
.metric-copy p { margin-top: 0.6rem; color: var(--muted); font-size: 0.98rem; }

.metric-card .phone {
  align-self: center;
  margin-top: auto;
  margin-bottom: -3rem;
}

/* ---------- 大功能块 ---------- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 2rem;
  margin-top: 1.25rem;
  padding: 3.5rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eaf0fa, #efeaf7);
  overflow: hidden;
}

.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }

.feature-copy h2 { font-size: clamp(2rem, 3.6vw, 3.4rem); }
.feature-copy p { margin-top: 1rem; color: var(--muted); font-size: 1.1rem; }
.feature-copy.light h3 { font-size: 1.8rem; color: #fff; letter-spacing: -0.02em; }
.feature-copy.light p { margin-top: 0.8rem; color: rgba(255, 255, 255, 0.6); }

.feature-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 22rem;
}

/* nutrition */
.nutrition-visual { gap: 1rem; flex-wrap: wrap; }
.nutri-list { display: flex; flex-direction: column; gap: 0.5rem; width: 16rem; }
.nutri-row { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.7rem; border-radius: 0.8rem; background: #fff; box-shadow: var(--shadow-sm); font-size: 0.82rem; }
.nutri-row .bar { flex: 1; height: 0.4rem; border-radius: 999px; background: linear-gradient(90deg, var(--green) 70%, rgba(0,0,0,0.08) 0); }
.nutri-row .bar.mid { background: linear-gradient(90deg, var(--green) 55%, rgba(0,0,0,0.08) 0); }
.nutri-row .bar.warn { background: linear-gradient(90deg, var(--orange) 40%, rgba(0,0,0,0.08) 0); }
.nutri-row .bar.warn.low { background: linear-gradient(90deg, var(--orange) 25%, rgba(0,0,0,0.08) 0); }
.nutri-card { width: 14rem; padding: 1rem; border-radius: 1.1rem; background: #fff; box-shadow: var(--shadow-sm); }
.macro { display: flex; gap: 0.5rem; margin-top: 0.7rem; font-weight: 700; }
.macro span:nth-child(1) { color: var(--blue); }
.macro span:nth-child(2) { color: var(--orange); }
.macro span:nth-child(3) { color: var(--pink); }
.macro-label { display: flex; gap: 0.5rem; font-size: 0.68rem; color: var(--muted); }
.macro span, .macro-label span { flex: 1; }
.kcal { margin-top: 0.8rem; font-size: 0.72rem; color: var(--muted); }

/* records 同心圆涟漪轨道（参考 Bevel「Connect your health records」）
   桌面：圆心锚在左侧，仅露右半圆；外圈直径依次增大形成涟漪。
   移动端：圆心移到底部、半径加大，仅露顶部弧，像彩虹罩在手机上方。 */
.records-visual {
  min-height: 30rem;
  overflow: hidden;
  justify-content: flex-start;
}

/* 轨道层：铺满可视区；圆心由 --cx/--cy 控制，直径由 --d1..4 控制。
   圆心锚在手机右缘附近，整层都在手机之后，手机挡住左半圆，仅露右半圆。 */
.orbit {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  --cx: 16rem;
  --cy: 50%;
  --d1: 16rem;
  --d2: 23rem;
  --d3: 30rem;
  --d4: 37rem;
}

/* 同心圆环：以 (--cx,--cy) 为共同圆心，直径递增叠出涟漪，图标恰好骑在环线上 */
.orbit-ring {
  position: absolute;
  left: var(--cx);
  top: var(--cy);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(33, 168, 72, 0.16);
}
/* 内两层承载图标（线略明显，图标压在线上）；外两层为纯装饰涟漪线条 */
.orbit-ring-1 { width: var(--d1); border-color: rgba(33, 168, 72, 0.24); }
.orbit-ring-2 { width: var(--d2); border-color: rgba(33, 168, 72, 0.2); }
.orbit-ring-3 { width: var(--d3); border-color: rgba(33, 168, 72, 0.12); }
.orbit-ring-4 { width: var(--d4); border-color: rgba(33, 168, 72, 0.08); }

/* 旋转层：GSAP 只转这一层，图标作为子元素跟着公转 */
.orbit-inner {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  transform-origin: 50% 50%;
  will-change: transform;
}

/* 辐条：铺满父圆，用内联 transform: rotate(angle) 固定方位 */
.orbit-slot {
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 50%;
  transform-origin: bottom center;
}

/* 图标：挂在辐条顶端，JS/GSAP 反向自转保持正向 */
.orbit-icon {
  position: absolute;
  top: 0;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  margin: -1.3rem 0 0 -1.3rem;
  border-radius: 0.85rem;
  background: #fff;
  box-shadow: 0 8px 20px -10px rgba(20, 30, 45, 0.35);
  font-size: 1.2rem;
  line-height: 1;
  transform-origin: 50% 50%;
  will-change: transform;
}

/* 手机始终在所有圆环之上：挡住左半圆，仅露右半（移动端为顶部）弧 */
.orbit-phone { position: relative; z-index: 2; }

/* 移动端：固定可视区高度，手机下移并裁掉底部，顶部腾出更大留白带；
   圆心移到底部、半径加大，旋转图标完整露在手机上方，不被遮挡 */
@media (max-width: 920px) {
  .records-visual {
    height: 30rem;
    min-height: 0;
    justify-content: center;
    align-items: flex-start;
  }
  .orbit-phone { margin-top: 12rem; }
  /* 半径与桌面相近，图标间距一致（不再因大圆而拉开）；圆心上移让弧顶露在手机上方 */
  .orbit {
    --cx: 50%;
    --cy: 14rem;
    --d1: 16rem;
    --d2: 23rem;
    --d3: 30rem;
    --d4: 37rem;
  }
  .orbit-icon {
    width: 2.1rem;
    height: 2.1rem;
    margin: -1.05rem 0 0 -1.05rem;
    font-size: 1rem;
    border-radius: 0.65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-inner { transform: none !important; }
}

/* ---------- LiveKY Intelligence ---------- */
.intelligence {
  margin: 5rem 0;
  padding: 5rem 1.25rem 6rem;
  background: radial-gradient(120% 90% at 50% 0%, #155a36 0%, #0f4a2c 42%, #0c3a23 100%);
  color: #fff;
}

.intel-head {
  max-width: 50rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.avatars {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.avatar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.avatar.is-active { opacity: 1; transform: translateY(-4px); }
.avatar.is-active .blob { box-shadow: 0 0 40px 6px currentColor; }

.blob {
  position: relative;
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50% 50% 48% 52% / 55% 55% 45% 45%;
  animation: blobMorph 6s ease-in-out infinite;
}

.blob::before,
.blob::after {
  content: "";
  position: absolute;
  top: 38%;
  width: 0.5rem;
  height: 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
}
.blob::before { left: 30%; }
.blob::after { right: 30%; }

.blob-red { background: radial-gradient(circle at 40% 35%, #ff8d8d, #b94b4b); color: #ff8d8d; }
.blob-blue { background: radial-gradient(circle at 40% 35%, #cfe0ff, #6f8dff); color: #8da8ff; }
.blob-amber { background: radial-gradient(circle at 40% 35%, #ffcf7a, #c8923f); color: #ffcf7a; }
.blob-green { background: radial-gradient(circle at 40% 35%, #9af0c2, #3fb57e); color: #6fe0a6; }
.blob.tiny { width: 1.1rem; height: 1.1rem; animation: none; }
.blob.tiny::before, .blob.tiny::after { width: 0.13rem; height: 0.24rem; top: 35%; }

@keyframes blobMorph {
  0%, 100% { border-radius: 50% 50% 48% 52% / 55% 55% 45% 45%; }
  50% { border-radius: 48% 52% 55% 45% / 50% 48% 52% 50%; }
}

.avatar em { font-style: normal; font-size: 0.8rem; padding: 0.3rem 0.7rem; border-radius: 999px; background: rgba(255, 255, 255, 0.1); }

.intel-head .muted { color: rgba(255, 255, 255, 0.45); }
.intel-head p { margin-top: 1rem; color: rgba(255, 255, 255, 0.55); font-size: 1.2rem; }

/* 滚动场景：滚动距离由 GSAP ScrollTrigger 的 pin 提供 */
.intel-scene {
  position: relative;
}

/* 手机舞台：由 GSAP pin 钉住（不再使用 CSS sticky） */
.intel-sticky {
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.intel-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 2rem;
  width: min(76rem, calc(100% - 2.5rem));
  margin: 0 auto;
}

/* 左侧文案：4 段叠在同一位置，按进度切换 */
.intel-texts {
  position: relative;
  min-height: 18rem;
}

.intel-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
}

.intel-index {
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.intel-text h3 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.intel-text p {
  margin-top: 1rem;
  max-width: 26rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.15rem;
}

/* 右侧手机：唯一一台，居中 */
.intel-phone {
  justify-self: center;
  margin: 0;
}

/* 4 屏叠放，crossfade 切换 */
.intel-screen {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.intel-screen.is-active {
  pointer-events: auto;
}

.intel-screen .app {
  color: var(--ink);
}

/* 进度点 */
.intel-dots {
  position: absolute;
  left: 50%;
  bottom: -3rem;
  display: flex;
  gap: 0.5rem;
  transform: translateX(-50%);
}

.intel-dots span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
  transition: background 0.3s ease, width 0.3s ease;
}

.intel-dots span.is-active {
  width: 1.6rem;
  background: rgba(255, 255, 255, 0.85);
}

/* ---------- And that's not all（Tab 轮播） ---------- */
.more {
  padding: 5rem 1.25rem 6rem;
  max-width: 76rem;
  margin: 0 auto;
}

.more-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.more-left .section-head { margin-bottom: 2.5rem; }

/* Tab 列表：固定高度可滚动 + 上下渐隐遮罩（参考 Bevel「And that's not all」）*/
.feature-tabs {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 30rem;
  overflow-y: auto;
  padding: 0.75rem 0.4rem;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0, #000 9%, #000 91%, transparent 100%);
}

.feature-tabs::-webkit-scrollbar { display: none; }

.feature-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.15rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 1.25rem;
  background: var(--bg-soft);
  text-align: left;
  cursor: pointer;
  transform-origin: center;
  transition: transform 0.25s ease, background 0.25s ease,
    box-shadow 0.25s ease, border-color 0.25s ease, opacity 0.25s ease;
}

.feature-tab:not(.is-active) { opacity: 0.7; }

.feature-tab:hover {
  opacity: 1;
  transform: scale(1.025);
  box-shadow: 0 16px 34px -18px rgba(20, 30, 45, 0.45);
}

.feature-tab:active { transform: scale(0.99); }

.feature-tab.is-active {
  opacity: 1;
  background: #fff;
  border-color: var(--line);
  box-shadow: 0 18px 42px -22px rgba(20, 30, 45, 0.5);
}

.tab-copy {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;
}

.tab-copy b {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tab-copy i {
  font-style: normal;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

/* 环形进度按钮 */
.tab-ring {
  position: relative;
  flex: none;
  width: 2.8rem;
  height: 2.8rem;
}

.tab-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-track {
  fill: none;
  stroke: #c2c6ce;
  stroke-width: 6;
}

.ring-progress {
  fill: none;
  stroke: var(--ink);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: none;
}

.feature-tab.is-active .ring-progress {
  stroke: var(--brand);
}

.ring-icon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.feature-tab.is-active .ring-icon.icon-pause {
  opacity: 1;
}

.feature-tabs.is-paused .feature-tab.is-active .ring-icon.icon-pause {
  opacity: 0;
}

.feature-tabs.is-paused .feature-tab.is-active .ring-icon.icon-play {
  opacity: 1;
}

.icon-pause::before,
.icon-pause::after {
  content: "";
  position: absolute;
  width: 0.22rem;
  height: 0.7rem;
  border-radius: 1px;
  background: var(--ink);
}

.icon-pause::before { transform: translateX(-0.18rem); }
.icon-pause::after { transform: translateX(0.18rem); }

.icon-play::before {
  content: "";
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0.35rem 0 0.35rem 0.55rem;
  border-color: transparent transparent transparent var(--ink);
  margin-left: 0.1rem;
}

/* 右侧手机 */
.more-right {
  display: flex;
  justify-content: center;
  align-items: center;
  position: sticky;
  top: 6rem;
}

.more-phone {
  width: 16.5rem;
  filter: drop-shadow(0 30px 60px rgba(20, 30, 45, 0.18));
}

/* 9 层画面叠放 */
.tab-media {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: none;
}

.tab-media.is-active {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.tab-media .app { color: var(--ink); }

/* 各屏 mock UI 补充 */
.cycle-ring {
  align-self: center;
  width: 8rem;
  height: 8rem;
  margin: 0.5rem 0;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 0 58%, transparent 59%),
    conic-gradient(var(--pink) 0 55%, rgba(22, 24, 29, 0.08) 0);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--pink);
}

.status-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.status-chips .chip {
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  background: rgba(22, 24, 29, 0.06);
  color: var(--muted);
}

.status-chips .chip.on {
  background: rgba(67, 217, 138, 0.18);
  color: #1b8a4e;
  font-weight: 600;
}

.water-row {
  display: flex;
  gap: 0.35rem;
  justify-content: center;
  margin-top: 0.5rem;
}

.water-row i {
  width: 1.4rem;
  height: 2rem;
  border-radius: 0.3rem 0.3rem 0.5rem 0.5rem;
  background: linear-gradient(180deg, var(--blue), #a8d4ff);
}

.water-row i.off {
  background: rgba(22, 24, 29, 0.08);
}

.widget-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.wg {
  padding: 0.7rem;
  border-radius: 0.9rem;
  text-align: center;
}

.wg b { display: block; font-size: 1.1rem; }
.wg span { font-size: 0.62rem; color: var(--muted); }

.wg-a { background: linear-gradient(135deg, rgba(67, 217, 138, 0.2), rgba(67, 217, 138, 0.08)); }
.wg-b { background: linear-gradient(135deg, rgba(111, 184, 255, 0.2), rgba(111, 184, 255, 0.08)); }
.wg-c { background: linear-gradient(135deg, rgba(255, 178, 122, 0.2), rgba(255, 178, 122, 0.08)); }
.wg-d { background: linear-gradient(135deg, rgba(185, 168, 255, 0.2), rgba(185, 168, 255, 0.08)); }

.pill-pink { color: #a12662; background: rgba(255, 148, 196, 0.24); }

/* ---------- Privacy ---------- */
.privacy {
  padding: 2rem 1.25rem 6rem;
  max-width: 76rem;
  margin: 0 auto;
}

.privacy-card {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 26rem;
  padding: 4rem 2rem;
  border-radius: var(--radius);
  text-align: center;
  color: #fff;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 120%, #2f8a55 0%, #155a36 42%, #0c3a23 100%);
}

.lock-watermark {
  position: absolute;
  width: 22rem;
  height: 22rem;
  border-radius: 3rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  -webkit-mask: radial-gradient(circle at 50% 34%, transparent 0 22%, #000 23% 30%, transparent 31%) top / 100% 60% no-repeat,
    linear-gradient(#000, #000) bottom / 66% 64% no-repeat;
  mask: radial-gradient(circle at 50% 34%, transparent 0 22%, #000 23% 30%, transparent 31%) top / 100% 60% no-repeat,
    linear-gradient(#000, #000) bottom / 66% 64% no-repeat;
}

.privacy-card h2,
.privacy-card p { position: relative; z-index: 2; }
.privacy-card p { max-width: 32rem; margin-top: 1.2rem; color: rgba(255, 255, 255, 0.62); font-size: 1.15rem; }

/* ---------- About 页面 ---------- */
.about-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72svh;
  padding: 9rem 1.25rem 5rem;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, #eaf1fb 0%, #f3f6fb 45%, #fbfcf8 100%);
}

.about-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 42rem;
}

.about-eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(33, 168, 72, 0.1);
  color: var(--brand-dark);
  font-size: 0.82rem;
  font-weight: 650;
}

.about-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 800;
}

.about-lead {
  max-width: 34rem;
  margin: 1.2rem auto 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.6vw, 1.12rem);
}

.about-story {
  max-width: 76rem;
  margin: 0 auto;
  padding: 4rem 1.25rem 5rem;
}

.about-story-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.about-story-copy h2,
.about-section-head h2,
.about-team-inner h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  font-weight: 800;
}

.about-story-copy p,
.about-section-head p,
.about-team-inner p {
  color: var(--muted);
}

.about-story-copy p + p {
  margin-top: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.about-stat {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.4rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--bg-soft);
}

.about-stat strong {
  font-family: var(--font-display);
  font-size: 1.8rem;
  line-height: 1;
  color: var(--brand-dark);
}

.about-stat span {
  color: var(--muted);
  font-size: 0.88rem;
}

.about-values,
.about-build,
.about-team {
  max-width: 76rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 5rem;
}

.about-section-head {
  max-width: 36rem;
  margin-bottom: 2rem;
}

.about-section-head p {
  margin-top: 0.8rem;
}

.about-value-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.about-value-card {
  padding: 1.6rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.about-value-icon {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1rem;
  border-radius: 0.8rem;
  font-size: 1rem;
  font-weight: 700;
}

.about-value-icon-smart {
  color: var(--brand-dark);
  background: rgba(33, 168, 72, 0.12);
}

.about-value-icon-fast {
  color: #2563eb;
  background: rgba(111, 184, 255, 0.18);
}

.about-value-icon-warm {
  color: #be185d;
  background: rgba(255, 155, 199, 0.18);
}

.about-value-card h3 {
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
  font-weight: 750;
}

.about-value-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.about-feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-feature-list li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.2rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff;
}

.about-feature-list strong {
  font-size: 0.98rem;
}

.about-feature-list span {
  color: var(--muted);
  font-size: 0.88rem;
}

.about-privacy {
  max-width: 76rem;
  margin: 0 auto;
  padding: 0 1.25rem 5rem;
}

.about-team-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 34rem;
  margin: 0 auto;
  padding: 3rem 2rem;
  border-radius: var(--radius);
  text-align: center;
  background: var(--bg-soft);
}

.about-team-logo {
  width: 5rem;
  height: 5rem;
  margin-bottom: 1.2rem;
  object-fit: contain;
}

.about-team-inner p + p {
  margin-top: 0.8rem;
}

.about-team-note {
  margin-top: 1.2rem !important;
  font-size: 0.85rem;
}

.about-cta .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.page-about .cta {
  padding-bottom: 5rem;
}

.about-heartfelt {
  max-width: 76rem;
  margin: 0 auto;
  padding: 0 1.25rem 5rem;
}

.about-heartfelt-card {
  position: relative;
  margin: 0;
  padding: 2.4rem 2rem 2rem;
  border: 1px solid rgba(33, 168, 72, 0.18);
  border-radius: 1.6rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(244, 250, 245, 0.98)),
    radial-gradient(circle at 0% 0%, rgba(111, 191, 68, 0.12), transparent 42%);
  box-shadow: var(--shadow-sm);
}

.about-heartfelt-mark {
  position: absolute;
  top: 0.6rem;
  left: 1.4rem;
  color: rgba(33, 168, 72, 0.22);
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 1;
  pointer-events: none;
}

.about-heartfelt-body {
  position: relative;
  z-index: 1;
  width: 100%;
}

.about-heartfelt-body p {
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.85;
}

.about-heartfelt-body p + p {
  margin-top: 1rem;
}

.about-heartfelt-sign {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px dashed rgba(33, 168, 72, 0.22);
}

.about-heartfelt-sign cite {
  font-family: var(--font-display);
  font-style: normal;
  font-size: 1.15rem;
  font-weight: 750;
  color: var(--brand-dark);
}

.about-heartfelt-sign span {
  color: var(--muted);
  font-size: 0.88rem;
}

/* ---------- Loved everywhere ---------- */
.loved {
  position: relative;
  padding: 5rem 1.25rem 6rem;
  text-align: center;
}

.loved-collage {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 1rem;
  height: 20rem;
  margin-bottom: -6rem;
  mask-image: linear-gradient(180deg, #000 55%, transparent);
}

.cl {
  width: 7rem;
  border-radius: 1.2rem;
  box-shadow: var(--shadow-sm);
}
.cl-1 { height: 11rem; background: linear-gradient(135deg, #c9d8e8, #98acc4); }
.cl-2 { height: 15rem; align-self: flex-start; background: linear-gradient(135deg, #d8c9b0, #b59c7e); }
.cl-3 { height: 13rem; align-self: flex-end; background: linear-gradient(135deg, #b7d4c0, #8db59c); }
.cl-4 { height: 17rem; background: linear-gradient(135deg, #a9c4d8, #7a9cb5); }
.cl-5 { height: 12rem; align-self: flex-end; background: linear-gradient(135deg, #d8c0c9, #b58d9c); }
.cl-6 { height: 15rem; align-self: flex-start; background: linear-gradient(135deg, #c7c0d8, #9b8db5); }
.cl-7 { height: 13rem; background: linear-gradient(135deg, #c0cdd8, #8da3b5); }
.cl-8 { height: 11rem; align-self: flex-end; background: linear-gradient(135deg, #c9d8c0, #9cb58d); }

.loved .section-head { position: relative; z-index: 2; margin-top: 3rem; }

.review-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.review-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  padding: 1rem;
  animation: marquee 36s linear infinite;
}

.review-track article {
  width: 20rem;
  flex: none;
  padding: 1.4rem;
  border-radius: 1.4rem;
  text-align: left;
  background: linear-gradient(180deg, #eef2f9, #e7ecf4);
}

.review-track h4 { margin-top: 0.6rem; font-size: 1.05rem; }
.review-track p { margin-top: 0.5rem; color: var(--muted); font-size: 0.92rem; }
.review-track strong { display: block; margin-top: 1rem; color: var(--muted); font-size: 0.82rem; font-weight: 600; }

/* ---------- CTA ---------- */
.cta {
  padding: 6rem 1.25rem 0;
  text-align: center;
  overflow: hidden;
}

.cta p { max-width: 34rem; margin: 1.2rem auto 2rem; color: var(--muted); font-size: 1.2rem; }

.cta-collage {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 2rem;
  margin-top: 4rem;
  height: 14rem;
}

.cc { width: 9rem; height: 9rem; border-radius: 1.4rem; box-shadow: var(--shadow-sm); }
.cc-1 { background: linear-gradient(135deg, #e4e8ec, #c4ccd4); }
.cc-2 { height: 11rem; background: linear-gradient(135deg, #2a2d33, #4a4f5a); }
.cc-3 { height: 12rem; border-radius: 2rem; background: linear-gradient(135deg, #cfe0f0, #aebfd2); }
.cc-4 { background: linear-gradient(135deg, #d8c9b0, #b59c7e); }

/* ---------- 页脚 ---------- */
.footer {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem 4rem;
  justify-content: space-between;
  max-width: 76rem;
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* 背景铺满整屏宽度，内容仍限宽居中 */
.footer::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: 50%;
  width: 100vw;
  height: 100%;
  background: #f4f6f8;
  border-top: 1px solid var(--line);
  transform: translateX(-50%);
}

.footer-brand p { margin-top: 0.5rem; color: var(--muted); font-size: 0.82rem; }
.socials { display: flex; gap: 0.6rem; margin-top: 1.2rem; }
.socials a {
  display: grid; place-items: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: rgba(22, 24, 29, 0.06); font-size: 0.7rem; color: var(--muted);
}

.footer-qr {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1.4rem;
}
.footer-qr img {
  width: 7rem;
  height: 7rem;
  object-fit: contain;
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: #fff;
}
.footer-qr span { color: var(--muted); font-size: 0.78rem; }

/* ---------- 404 页面 ---------- */
.error-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92svh;
  padding: 9rem 1.25rem 5rem;
  overflow: hidden;
  text-align: center;
  background: linear-gradient(180deg, #eaf1fb 0%, #f3f6fb 45%, #fbfcf8 100%);
}

.error-inner {
  position: relative;
  z-index: 2;
  max-width: 42rem;
}

.error-code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 18vw, 11rem);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--brand-light) 0%, var(--brand) 45%, var(--brand-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-title {
  margin-top: 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.error-sub {
  max-width: 32rem;
  margin: 1.1rem auto 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-top: 1.8rem;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.error-links a { color: var(--brand-dark); }
.error-links a:hover { text-decoration: underline; }

.footer-cols { display: flex; flex: 1 1 30rem; flex-wrap: wrap; gap: 2rem 3rem; justify-content: space-between; }
.footer-cols h5 { margin-bottom: 0.8rem; font-size: 0.92rem; color: var(--muted); }
.footer-cols a { display: block; margin-bottom: 0.5rem; font-size: 0.92rem; }
.footer-cols a:hover { color: var(--ink); }

/* ---------- 滚动入场动画（初始隐藏，由 GSAP 接管）---------- */
.reveal {
  opacity: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .about-story-grid,
  .about-value-cards,
  .about-feature-list {
    grid-template-columns: 1fr;
  }

  .metric-cards { grid-template-columns: 1fr; }
  .feature-block { grid-template-columns: 1fr; text-align: center; }
  .feature-block.reverse { direction: ltr; }
  .feature-copy p { margin-inline: auto; }
  .more-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .more-right { position: static; }
  .feature-visual { min-height: 20rem; }

  /* 「还远不止于此」移动端：左侧 Tab 改为横向滑动（遮罩转为左右渐隐）*/
  .more-left { min-width: 0; }
  .feature-tabs {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 0.85rem;
    max-height: none;
    overflow-x: auto;
    overflow-y: visible;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin: 0 -1.25rem;
    padding: 0.25rem 1.25rem 1rem;
    -webkit-mask-image: linear-gradient(to right, transparent 0, #000 8%, #000 92%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0, #000 8%, #000 92%, transparent 100%);
  }
  .feature-tabs::-webkit-scrollbar { display: none; }

  .feature-tab {
    flex: 0 0 auto;
    width: 15rem;
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.1rem 1.2rem;
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: #fff;
    scroll-snap-align: start;
  }
  .feature-tab:hover { transform: none; box-shadow: none; }
  .feature-tab.is-active {
    border-color: var(--brand);
    box-shadow: 0 10px 26px rgba(22, 24, 29, 0.08);
  }
  .feature-tab .tab-copy { width: 100%; }

  /* Intelligence 区改为上文案下手机的竖排 */
  .intel-stage {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 2.5rem;
    text-align: center;
  }
  .intel-texts { min-height: 11rem; width: 100%; }
  .intel-text { justify-content: flex-start; align-items: center; }
  .intel-text p { margin-inline: auto; }
  .intel-dots { bottom: -2rem; }
}

/* 窄屏放不下整行大字时，恢复换行（字号不变） */
@media (max-width: 700px) {
  .hero-line2 { white-space: normal; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .nav { gap: 0.8rem; padding-left: 1rem; }
  .nav-links { display: none; }
  .feature-tab { width: 13.5rem; padding: 1rem 1.1rem; }
  .feature-block { padding: 2.2rem 1.5rem; }
  .avatars { gap: 0.6rem; }
  .blob { width: 3.4rem; height: 3.4rem; }
  .avatar em { font-size: 0.68rem; }
  .cta-collage { gap: 0.8rem; }
  .cc { width: 5rem; height: 5rem; }
  .cc-2 { height: 6rem; }
  .cc-3 { height: 7rem; }
  .loved-collage .cl { width: 4.5rem; }
}

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