/* ============================================================
   流韵星河 · 官网样式
   视觉基调：深空夜幕 + 极光云霞 + 玻璃拟态 + 衬线大标题
   纯 CSS 绘制背景，无外部图片依赖（仅 assets/star.svg 与可选二维码）
   ============================================================ */

:root {
  --bg: #0a0714;
  --bg-2: #140d26;

  --ink: #f5f0ff;
  --ink-2: #c6bcdd;
  --ink-3: #8e85a9;

  --line: rgba(255, 255, 255, 0.12);
  --line-soft: rgba(255, 255, 255, 0.07);
  --glass: rgba(255, 255, 255, 0.055);
  --glass-strong: rgba(255, 255, 255, 0.09);

  --pink: #ff8ec7;
  --violet: #a98cff;
  --cyan: #7fd8ff;
  --gold: #ffcf9b;

  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong",
    "SimSun", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;

  --pad: clamp(20px, 5vw, 72px);
  --maxw: 1220px;
  --radius: 26px;
  --radius-s: 14px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { list-style: none; padding: 0; }
::selection { background: rgba(255, 142, 199, 0.35); }

/* ---------- 极光背景 ---------- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 12% 8%, rgba(84, 36, 122, 0.55), transparent 60%),
    radial-gradient(100% 70% at 88% 0%, rgba(24, 62, 104, 0.5), transparent 62%),
    radial-gradient(120% 90% at 50% 100%, rgba(96, 26, 74, 0.45), transparent 65%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 45%, #09060f 100%);
}

.aurora__blob {
  position: absolute;
  display: block;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}
.aurora__blob--pink {
  width: 46vw; height: 46vw; left: -8vw; top: 6vh;
  background: radial-gradient(circle, rgba(255, 128, 190, 0.75), transparent 68%);
  animation: drift 26s var(--ease) infinite alternate;
}
.aurora__blob--violet {
  width: 52vw; height: 52vw; right: -10vw; top: -6vh;
  background: radial-gradient(circle, rgba(150, 118, 255, 0.7), transparent 68%);
  animation: drift 32s var(--ease) infinite alternate-reverse;
}
.aurora__blob--cyan {
  width: 42vw; height: 42vw; left: 32vw; bottom: -16vh;
  background: radial-gradient(circle, rgba(110, 205, 255, 0.45), transparent 70%);
  animation: drift 38s var(--ease) infinite alternate;
}

.aurora__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 55% at 50% 42%, rgba(255, 214, 240, 0.16), transparent 70%),
    linear-gradient(180deg, rgba(10, 7, 20, 0.5) 0%, rgba(10, 7, 20, 0.86) 78%);
}

.aurora__grain {
  position: absolute;
  inset: -20%;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(6vw, 5vh, 0) scale(1.15); }
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 18px var(--pad);
  transition: background 0.35s ease, backdrop-filter 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(10, 7, 20, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line-soft);
}

.nav__links { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav__links--right { justify-content: flex-end; }
.nav__links a {
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  transition: color 0.25s ease;
  white-space: nowrap;
}
.nav__links a:hover { color: var(--ink); }

.nav__cta {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink) !important;
  background: var(--glass);
}
.nav__cta:hover { background: var(--glass-strong); }

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 0.22em;
  padding-left: 0.22em;
}

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--glass);
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 16px; height: 1.5px;
  margin: 4px auto;
  background: var(--ink);
}

/* ---------- 复用排版 ---------- */
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 18px;
}

.display {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(44px, 7.4vw, 96px);
  line-height: 1.06;
  letter-spacing: 0.02em;
}
.display em {
  font-style: normal;
  background: linear-gradient(100deg, var(--gold), var(--pink) 42%, var(--violet) 78%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.display__mark {
  display: inline-block;
  margin: 0 0.18em;
  font-size: 0.5em;
  vertical-align: 0.28em;
  color: var(--pink);
}

.headline {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.25;
  letter-spacing: 0.01em;
}

.lede {
  margin-top: 22px;
  max-width: 52ch;
  color: var(--ink-2);
  font-size: clamp(15px, 1.15vw, 17px);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 14.5px;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s ease, box-shadow 0.3s ease;
}
.btn--primary {
  color: #1a0f22;
  background: linear-gradient(100deg, #ffd7a8, #ff9ecd 48%, #b79bff);
  box-shadow: 0 14px 40px rgba(255, 158, 205, 0.28);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 48px rgba(255, 158, 205, 0.36); }
.btn--ghost {
  color: var(--ink);
  border-color: var(--line);
  background: var(--glass);
}
.btn--ghost:hover { background: var(--glass-strong); transform: translateY(-2px); }

.pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  font-size: 12px;
  color: var(--ink-2);
  white-space: nowrap;
}
.pill--live { color: #9ef5c0; border-color: rgba(120, 240, 170, 0.3); background: rgba(60, 200, 130, 0.12); }
.pill--solo { color: #9ef0c8; border-color: rgba(110, 230, 180, 0.28); background: rgba(50, 190, 150, 0.12); }
.pill--status { color: #ffc48a; border-color: rgba(255, 170, 90, 0.3); background: rgba(255, 150, 60, 0.12); }
.pill--star { color: #ffd98f; border-color: rgba(255, 205, 110, 0.3); background: rgba(255, 190, 70, 0.12); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-content: center;
  align-content: safe center;
  padding: 118px var(--pad) 86px;
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  column-gap: clamp(24px, 4vw, 56px);
  row-gap: clamp(26px, 3.4vw, 44px);
}

.hero__copy { position: relative; z-index: 3; }
.hero__copy .lede { max-width: 40ch; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

/* ---------- 铺满首屏的星空：无边框，与背景融为一体 ---------- */
.starscape {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
/* 星野：三层亮度与节奏，忽明忽暗地闪烁 */
/* 第一层：细碎暗星，快速呼吸 */
.starscape__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.2px 1.2px at 16% 52%, rgba(255, 224, 240, 0.9), transparent 100%),
    radial-gradient(1.2px 1.2px at 34% 72%, rgba(214, 232, 255, 0.85), transparent 100%),
    radial-gradient(1.2px 1.2px at 52% 38%, rgba(255, 255, 255, 0.8), transparent 100%),
    radial-gradient(1.2px 1.2px at 66% 58%, rgba(255, 224, 240, 0.85), transparent 100%),
    radial-gradient(1.2px 1.2px at 82% 12%, rgba(214, 232, 255, 0.9), transparent 100%),
    radial-gradient(1.2px 1.2px at 94% 24%, rgba(255, 240, 214, 0.85), transparent 100%),
    radial-gradient(1.2px 1.2px at 58% 82%, rgba(214, 232, 255, 0.75), transparent 100%),
    radial-gradient(1.2px 1.2px at 12% 82%, rgba(214, 232, 255, 0.7), transparent 100%);
  animation: twinkle 2.8s ease-in-out infinite alternate;
}
/* 第二层：中等星，节奏错开 */
.starscape__stars--2 {
  background-image:
    radial-gradient(1.7px 1.7px at 8% 18%, #fff, transparent 100%),
    radial-gradient(1.7px 1.7px at 42% 12%, rgba(255, 240, 214, 0.95), transparent 100%),
    radial-gradient(1.7px 1.7px at 74% 34%, #fff, transparent 100%),
    radial-gradient(1.6px 1.6px at 30% 88%, rgba(255, 255, 255, 0.85), transparent 100%),
    radial-gradient(1.7px 1.7px at 78% 76%, rgba(255, 224, 240, 0.85), transparent 100%),
    radial-gradient(1.5px 1.5px at 46% 58%, rgba(255, 255, 255, 0.75), transparent 100%);
  animation: twinkle 3.6s ease-in-out 0.9s infinite alternate;
}
/* 第三层：亮星，带光晕，高频明灭 */
.starscape__stars--3 {
  background-image:
    radial-gradient(10px 10px at 24% 28%, rgba(255, 255, 255, 0.3), transparent 100%),
    radial-gradient(2.4px 2.4px at 24% 28%, #fff, transparent 100%),
    radial-gradient(9px 9px at 60% 20%, rgba(255, 214, 240, 0.32), transparent 100%),
    radial-gradient(2.2px 2.2px at 60% 20%, #fff, transparent 100%),
    radial-gradient(11px 11px at 88% 44%, rgba(190, 224, 255, 0.32), transparent 100%),
    radial-gradient(2.4px 2.4px at 88% 44%, #fff, transparent 100%),
    radial-gradient(9px 9px at 94% 66%, rgba(255, 240, 214, 0.28), transparent 100%),
    radial-gradient(2px 2px at 94% 66%, #fff, transparent 100%);
  animation: flicker 2.1s linear infinite;
}
/* 星云薄雾：整片极光的延伸，无边界 */
.starscape__nebula {
  position: absolute;
  inset: -14% -8%;
  background:
    radial-gradient(34% 30% at 68% 34%, rgba(255, 130, 195, 0.2), transparent 70%),
    radial-gradient(38% 34% at 84% 56%, rgba(140, 110, 255, 0.22), transparent 70%),
    radial-gradient(30% 26% at 76% 12%, rgba(110, 190, 255, 0.14), transparent 72%);
  filter: blur(34px);
  animation: drift 24s var(--ease) infinite alternate;
}

/* ---------- 右侧无边界星云光晕：替代原"蛋"，只有光没有形 ---------- */
.hero__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 300px;
  isolation: isolate;
}
.glow {
  position: relative;
  width: min(36vw, 460px);
  aspect-ratio: 1;
}
.glow__c {
  position: absolute;
  display: block;
  border-radius: 50%;
  filter: blur(64px);
}
.glow__c--pink {
  width: 62%; height: 58%;
  left: 8%; top: 16%;
  background: radial-gradient(circle, rgba(255, 150, 205, 0.55), transparent 68%);
  animation: float 11s ease-in-out infinite;
}
.glow__c--violet {
  width: 66%; height: 64%;
  right: 0; top: 28%;
  background: radial-gradient(circle, rgba(160, 132, 255, 0.5), transparent 68%);
  animation: float 14s ease-in-out infinite reverse;
}
.glow__c--cyan {
  width: 44%; height: 40%;
  left: 32%; bottom: 2%;
  background: radial-gradient(circle, rgba(120, 205, 255, 0.34), transparent 70%);
  animation: float 17s ease-in-out infinite;
}
/* 光晕中几颗较亮的"主星" */
.glow::before,
.glow::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 14px 3px rgba(255, 255, 255, 0.75);
  animation: twinkle 2.6s ease-in-out infinite alternate;
}
.glow::before { width: 5px; height: 5px; left: 30%; top: 24%; }
.glow::after { width: 4px; height: 4px; right: 26%; bottom: 30%; animation-delay: 0.9s; }

@keyframes twinkle {
  from { opacity: 0.15; }
  to   { opacity: 1; }
}
/* 亮星：不规则明灭，像真星星在眨眼 */
@keyframes flicker {
  0%, 100% { opacity: 1; }
  38%  { opacity: 0.28; }
  46%  { opacity: 0.92; }
  56%  { opacity: 0.4; }
  68%  { opacity: 1; }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* 滚动提示：细引导线 + 下落的星点，与星空语言一致 */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.32em;
  padding-left: 0.32em; /* 抵消末字符字距，保证视觉居中 */
  color: var(--ink-3);
  z-index: 3;
  transition: color 0.25s ease;
}
.scroll-hint:hover { color: var(--ink-2); }
.scroll-hint__wheel {
  position: relative;
  width: 1px;
  height: 54px;
  background: linear-gradient(180deg, transparent, var(--line) 26%, var(--line) 74%, transparent);
}
.scroll-hint__wheel i {
  position: absolute;
  left: 50%;
  top: 0;
  width: 5px; height: 5px;
  margin-left: -2.5px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px 2px rgba(255, 207, 155, 0.55);
  animation: hint-drop 2.4s cubic-bezier(0.5, 0, 0.4, 1) infinite;
}
@keyframes hint-drop {
  0%   { transform: translateY(0); opacity: 0; }
  16%  { opacity: 1; }
  70%  { transform: translateY(48px); opacity: 0; }
  100% { transform: translateY(48px); opacity: 0; }
}

/* ---------- 通用区块 ---------- */
.section {
  position: relative;
  padding: clamp(80px, 10vw, 140px) var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section__head { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.section__sub { margin-top: 16px; font-size: 15.5px; color: var(--ink-2); max-width: 58ch; }

.grid { display: grid; gap: 18px; }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.feature {
  padding: 30px 26px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  transition: transform 0.35s var(--ease), border-color 0.3s ease, background 0.3s ease;
}
.feature:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
}
.feature h3 {
  position: relative;
  padding-top: 14px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}
.feature h3::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 26px; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--pink), var(--violet));
}
.feature p { font-size: 14px; color: var(--ink-2); }

/* ---------- 协作流程 ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: flow;
}
.flow__step {
  position: relative;
  padding: 30px 26px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line-soft);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  transition: transform 0.35s var(--ease), border-color 0.3s ease, background 0.3s ease;
}
.flow__step:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
}
.flow__step::after {
  content: "";
  position: absolute;
  top: 48px;
  right: -18px;
  width: 18px; height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}
.flow__step:last-child::after { display: none; }
.flow__no {
  display: block;
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1;
  color: transparent;
  background: linear-gradient(120deg, var(--pink), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  margin-bottom: 18px;
}
.flow__step h3 {
  position: relative;
  padding-top: 14px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: 0.03em;
  margin-bottom: 10px;
}
.flow__step h3::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 26px; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--pink), var(--violet));
}
.flow__step p { font-size: 14px; color: var(--ink-2); }

/* ---------- 团队与作品 ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  align-items: center;
  gap: clamp(30px, 5vw, 70px);
}
.ticks { margin-top: 26px; display: grid; gap: 12px; }
.ticks li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--ink-2);
}
.ticks li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--pink), var(--violet));
  box-shadow: 0 0 14px rgba(255, 142, 199, 0.55);
}

.team-card {
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.03));
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 60px rgba(6, 4, 14, 0.55);
}
.team-card__head { display: flex; align-items: center; gap: 14px; }
.team-card__head h3 { font-family: var(--serif); font-weight: 500; font-size: 18px; }
.team-card__head p { font-size: 12px; color: var(--ink-3); }
.team-card__head > .pill { margin-left: auto; }
.team-card__avatar {
  display: grid;
  place-items: center;
  width: 50px; height: 50px;
  border-radius: 16px;
  background: linear-gradient(140deg, #8a4a6d, #ff9ecd 60%, #b79bff);
  font-size: 20px;
  color: #fff;
}
.team-card__meta {
  display: flex;
  gap: 22px;
  margin: 20px 0;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--ink-3);
}
.team-card__meta b { color: var(--ink); font-family: var(--serif); font-size: 17px; margin-right: 5px; }
.team-card__notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-s);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--ink-2);
}
.team-card__notice .dot {
  flex: none;
  width: 7px; height: 7px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(255, 207, 155, 0.7);
}
.team-card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

/* ---------- 小程序一览 ---------- */
.preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 300px));
  justify-content: center;
  gap: clamp(18px, 2.5vw, 30px);
}

.phone {
  position: relative;
  padding: 12px;
  border-radius: 42px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.03));
  box-shadow: 0 30px 70px rgba(6, 4, 14, 0.6);
  transition: transform 0.45s var(--ease);
}
.phone:hover { transform: translateY(-8px); }
.phone__screen {
  border-radius: 32px;
  padding: 18px 16px 22px;
  background: linear-gradient(180deg, #171029, #100b1f 70%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  min-height: 452px;
}
.phone__status { display: flex; justify-content: space-between; margin-bottom: 16px; }
.phone__status span { width: 34px; height: 6px; border-radius: 999px; background: rgba(255, 255, 255, 0.14); }
.phone__status span:last-child { width: 16px; }
.phone__title {
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 16px;
}
.phone__segs { display: flex; gap: 8px; margin-bottom: 16px; }
.phone__segs span {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--ink-3);
  border: 1px solid var(--line-soft);
}
.phone__segs .is-active {
  color: #1a0f22;
  background: linear-gradient(100deg, #ffd7a8, #ff9ecd);
  border-color: transparent;
}

.phone__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mini-card {
  padding: 7px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
}
.mini-card__cover { display: block; height: 62px; border-radius: 10px; margin-bottom: 8px; }
.mini-card__cover.m1 { background: linear-gradient(140deg, #ff9ecd, #b79bff); }
.mini-card__cover.m2 { background: linear-gradient(140deg, #7fd8ff, #5d7bff); }
.mini-card__cover.m3 { background: linear-gradient(140deg, #ffd7a8, #ff9ecd); }
.mini-card__cover.m4 { background: linear-gradient(140deg, #9ef0c8, #57c9d6); }
.mini-card__line { display: block; height: 6px; border-radius: 999px; background: rgba(255, 255, 255, 0.16); margin-bottom: 6px; }
.mini-card__line.short { width: 58%; background: rgba(255, 255, 255, 0.09); }

.phone__cover {
  height: 132px;
  border-radius: 16px;
  margin-bottom: 16px;
  background:
    radial-gradient(60% 50% at 30% 30%, rgba(255, 190, 230, 0.9), transparent 70%),
    radial-gradient(70% 60% at 80% 70%, rgba(140, 160, 255, 0.85), transparent 72%),
    linear-gradient(160deg, #3a1c4d, #1b2a4d);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.phone__badges { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.phone__roles { display: grid; gap: 14px; }
.role-row { display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 10px; font-size: 12.5px; color: var(--ink-2); }
.role-row b { font-weight: 400; color: var(--ink-3); font-size: 12px; }
.bar { display: block; height: 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.1); position: relative; overflow: hidden; }
.bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--pink), var(--violet));
}
.bar--80::after { width: 80%; }
.bar--45::after { width: 45%; }
.bar--20::after { width: 20%; }

.phone__caption {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(40px, 5vw, 62px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-soft);
}
.tabs li {
  padding: 22px 18px;
  background: rgba(14, 10, 26, 0.6);
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.6;
}
.tabs b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 16px;
  color: var(--ink);
}

/* ---------- 扫码 CTA ---------- */
.cta { padding: 0 var(--pad) clamp(80px, 10vw, 140px); }
.cta__card {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(28px, 4vw, 60px);
  padding: clamp(32px, 4.5vw, 60px);
  border-radius: 34px;
  border: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(90% 120% at 12% 0%, rgba(255, 142, 199, 0.22), transparent 60%),
    radial-gradient(80% 120% at 96% 100%, rgba(127, 216, 255, 0.18), transparent 60%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(16px);
}
.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.qr {
  display: grid;
  place-items: center;
  width: clamp(160px, 20vw, 208px);
  aspect-ratio: 1;
  padding: 16px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 22px 50px rgba(6, 4, 14, 0.55);
}
.qr__img { width: 100%; height: 100%; object-fit: contain; border-radius: 8px; }
.qr__placeholder { display: none; text-align: center; color: #6b6480; }
.qr__placeholder span { display: block; font-family: var(--serif); font-size: 17px; color: #2b2340; }
.qr__placeholder small { display: block; margin-top: 8px; font-size: 11px; line-height: 1.5; }
.qr.is-empty { border: 1px dashed rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.06); }
.qr.is-empty .qr__placeholder { display: block; }
.qr.is-empty .qr__placeholder span { color: var(--ink); }
.qr.is-empty .qr__placeholder small { color: var(--ink-3); }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line-soft);
  padding: clamp(48px, 6vw, 76px) var(--pad) 30px;
  background: rgba(8, 5, 16, 0.6);
}
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
}
.footer__brand p { margin-top: 14px; font-size: 13.5px; color: var(--ink-3); }
.footer__ver { font-family: var(--serif); letter-spacing: 0.18em; }
.footer__col { display: grid; align-content: start; gap: 12px; }
.footer__col h4 {
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  margin-bottom: 4px;
}
.footer__col a { font-size: 13.5px; color: var(--ink-2); transition: color 0.25s ease; }
.footer__col a:hover { color: var(--ink); }
.footer__bar {
  max-width: var(--maxw);
  margin: clamp(36px, 4vw, 56px) auto 0;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--ink-3);
}

/* ---------- 滚动出现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__copy .lede { max-width: 60ch; }
  .glow { width: min(64vw, 400px); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow__step::after { display: none; }
  .split { grid-template-columns: 1fr; }
  .tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .nav { grid-template-columns: auto 1fr auto; padding: 14px var(--pad); }
  .nav__links {
    position: fixed;
    inset: 66px var(--pad) auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: rgba(12, 8, 24, 0.94);
    backdrop-filter: blur(18px);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: 10px 6px; font-size: 14px; }
  .nav__links--right { inset: auto; position: static; display: none; }
  .nav__links--right.is-open { display: flex; }
  .nav__brand { justify-self: start; }
  .nav__toggle { display: block; }
  .nav__cta { border: none; background: none; padding: 10px 6px; }

  .hero { padding-top: 112px; }
  .hero__stage { display: none; }
  .grid--3, .flow { grid-template-columns: 1fr; }
  .preview { grid-template-columns: minmax(0, 1fr); }
  .phone__screen { min-height: 0; }
  .tabs { grid-template-columns: 1fr; }
  .cta__card { grid-template-columns: 1fr; justify-items: start; }
  .footer__inner { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .aurora__blob, .starscape__stars, .starscape__nebula,
  .glow__c, .glow::before, .glow::after,
  .scroll-hint__wheel i {
    animation: none !important;
  }
  .reveal { opacity: 1; transform: none; transition: none; }
}