/* ==========================================================================
   MuseForm 缪象官网｜styles.css
   视觉基准：2026-10-01《缪象小象 DNA 信息表与品牌配色基准》
   —— 小象色 = 品牌系统色：薄荷青行动 / 月桂金价值 / 象牙白温度 / 星辉紫氛围
   ========================================================================== */

/* ---------- 视觉变量层（小象 DNA 基准，全站唯一色源） ---------- */
:root {
  /* 场域层 */
  --mf-bg-deep: #0B0812;
  --mf-bg-violet: #130D1B;
  --mf-bg-night: #090712;
  --mf-starlight: rgba(185, 144, 255, 0.10);

  /* 行动层 · 小象记忆青 */
  --mf-mint: #8FE8D2;
  --mf-mint-deep: #6EDCC6;
  --mf-mint-glow: rgba(143, 232, 210, 0.28);
  --mf-mint-soft: rgba(143, 232, 210, 0.10);

  /* 价值层 · 小象月桂金 */
  --mf-gold: #D4AF37;
  --mf-gold-light: #F6B85A;
  --mf-gold-pale: #FFD28A;
  --mf-gold-dark: #3A2414;
  --mf-gold-glow: rgba(212, 175, 55, 0.20);

  /* 温度层 · 小象象牙白 */
  --mf-text-main: #FFF8F0;
  --mf-ivory: #F5E6D3;
  --mf-text-soft: rgba(255, 245, 235, 0.62);
  --mf-text-faint: rgba(255, 245, 235, 0.40);
  --mf-btn-text: #17101E;

  /* 氛围层 · 星辉紫 + 粉延展 */
  --mf-purple: #B990FF;
  --mf-purple-bright: #C7A3FF;
  --mf-pink: #FFB6D5;
  --mf-lilac-pale: #EAD7FF;

  /* 玻璃层 */
  --mf-glass: rgba(255, 255, 255, 0.10);
  --mf-glass-soft: rgba(255, 255, 255, 0.07);
  --mf-glass-strong: rgba(255, 255, 255, 0.16);
  --mf-line-glass: rgba(255, 255, 255, 0.16);

  /* 主按钮 · 薄荷青行动方案 */
  --mf-primary-button: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.94),
    rgba(190, 242, 229, 0.78),
    rgba(143, 232, 210, 0.72)
  );

  /* 字体 */
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;

  /* 节奏 */
  --section-gap: clamp(96px, 14vw, 168px);
  --container-w: 1180px;

  /* ---------- 昼夜主题插值层（滚动驱动：--t：0 = 星夜 DNA → 1 = 昼光浅色） ---------- */
  --t: 0;

  /* 浅色目标色（昼光） */
  --lt-page-bg: #F6F1E9;
  --lt-ink: #1C1526;
  --lt-ink-soft: rgba(38, 30, 48, 0.68);
  --lt-ink-faint: rgba(38, 30, 48, 0.46);
  --lt-ivory: #2E2438;
  --lt-card: rgba(255, 255, 255, 0.82);
  --lt-card-strong: rgba(255, 255, 255, 0.96);
  --lt-line: rgba(28, 21, 38, 0.10);
  --lt-line-strong: rgba(28, 21, 38, 0.24);
  --lt-mint: #0F7A68;
  --lt-mint-soft: rgba(15, 122, 104, 0.08);
  --lt-mint-line: rgba(15, 122, 104, 0.45);
  --lt-gold: #96690F;
  --lt-purple: #7A4FD0;
  --lt-pink: #BF4A82;
  --lt-lilac: #6B4FA8;
  --lt-nav-bg: rgba(249, 245, 239, 0.78);
  --lt-footer-bg: rgba(246, 240, 232, 0.88);

  /* 插值主题变量（全站颜色引用的唯一入口，随 --t 平滑渐变） */
  --t-page-bg: color-mix(in srgb, var(--mf-bg-deep), var(--lt-page-bg) calc(var(--t) * 100%));
  --t-ink: color-mix(in srgb, var(--mf-text-main), var(--lt-ink) calc(var(--t) * 100%));
  --t-ink-soft: color-mix(in srgb, var(--mf-text-soft), var(--lt-ink-soft) calc(var(--t) * 100%));
  --t-ink-faint: color-mix(in srgb, var(--mf-text-faint), var(--lt-ink-faint) calc(var(--t) * 100%));
  --t-ivory: color-mix(in srgb, var(--mf-ivory), var(--lt-ivory) calc(var(--t) * 100%));
  --t-card: color-mix(in srgb, var(--mf-glass-soft), var(--lt-card) calc(var(--t) * 100%));
  --t-card-strong: color-mix(in srgb, var(--mf-glass), var(--lt-card-strong) calc(var(--t) * 100%));
  --t-line: color-mix(in srgb, var(--mf-line-glass), var(--lt-line) calc(var(--t) * 100%));
  --t-line-strong: color-mix(in srgb, rgba(255, 255, 255, 0.3), var(--lt-line-strong) calc(var(--t) * 100%));
  --t-mint: color-mix(in srgb, var(--mf-mint), var(--lt-mint) calc(var(--t) * 100%));
  --t-mint-soft: color-mix(in srgb, var(--mf-mint-soft), var(--lt-mint-soft) calc(var(--t) * 100%));
  --t-mint-line: color-mix(in srgb, rgba(143, 232, 210, 0.45), var(--lt-mint-line) calc(var(--t) * 100%));
  --t-gold: color-mix(in srgb, var(--mf-gold-light), var(--lt-gold) calc(var(--t) * 100%));
  --t-purple: color-mix(in srgb, var(--mf-purple-bright), var(--lt-purple) calc(var(--t) * 100%));
  --t-pink: color-mix(in srgb, var(--mf-pink), var(--lt-pink) calc(var(--t) * 100%));
  --t-lilac: color-mix(in srgb, var(--mf-lilac-pale), var(--lt-lilac) calc(var(--t) * 100%));
  --t-nav-bg: color-mix(in srgb, rgba(11, 8, 18, 0.72), var(--lt-nav-bg) calc(var(--t) * 100%));
  --t-footer-bg: color-mix(in srgb, rgba(9, 7, 18, 0.55), var(--lt-footer-bg) calc(var(--t) * 100%));
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--t-page-bg); }

body {
  font-family: var(--font-sans);
  background: var(--t-page-bg);
  color: var(--t-ink);
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
em { font-style: normal; }
button { font-family: inherit; cursor: pointer; }

/* 滚动条（随昼夜主题联动） */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--t-ink) 24%, transparent);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--t-ink) 38%, transparent);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* ---------- 背景层：星夜（首屏 DNA）与昼光双层交叉 ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg__deep {
  position: absolute;
  inset: 0;
  opacity: calc(1 - var(--t));
  background:
    radial-gradient(120% 80% at 50% 0%, var(--mf-bg-violet) 0%, var(--mf-bg-night) 52%, var(--mf-bg-deep) 100%);
}

.bg__light {
  position: absolute;
  inset: 0;
  opacity: var(--t);
  background: radial-gradient(120% 80% at 50% 0%, #FBF8F2 0%, #F6F0E8 55%, #F1EAE1 100%);
}
.bg__light::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(46vw 46vw at 10% 6%, rgba(185, 144, 255, 0.16) 0%, transparent 70%),
    radial-gradient(42vw 42vw at 92% 80%, rgba(143, 232, 210, 0.16) 0%, transparent 70%),
    radial-gradient(30vw 30vw at 86% 10%, rgba(255, 182, 213, 0.12) 0%, transparent 70%);
}
.bg__light::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(28, 21, 38, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 21, 38, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(80% 60% at 50% 30%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 30%, #000 0%, transparent 100%);
}

.bg__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 22%, rgba(255, 248, 240, 0.7), transparent 100%),
    radial-gradient(1px 1px at 28% 64%, rgba(199, 163, 255, 0.65), transparent 100%),
    radial-gradient(1.4px 1.4px at 44% 12%, rgba(255, 182, 213, 0.6), transparent 100%),
    radial-gradient(1px 1px at 58% 48%, rgba(255, 248, 240, 0.5), transparent 100%),
    radial-gradient(1.2px 1.2px at 72% 26%, rgba(143, 232, 210, 0.55), transparent 100%),
    radial-gradient(1px 1px at 84% 66%, rgba(199, 163, 255, 0.55), transparent 100%),
    radial-gradient(1.3px 1.3px at 18% 86%, rgba(255, 182, 213, 0.5), transparent 100%),
    radial-gradient(1px 1px at 38% 38%, rgba(255, 248, 240, 0.35), transparent 100%),
    radial-gradient(1.2px 1.2px at 64% 78%, var(--t-mint-line), transparent 100%),
    radial-gradient(1px 1px at 92% 16%, rgba(255, 248, 240, 0.45), transparent 100%);
  animation: star-breathe 7s ease-in-out infinite alternate;
  transition: opacity 0.6s ease;
}

.bg__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 1;
  transition: opacity 0.6s ease;
}
.bg__glow--purple {
  width: 60vw; height: 60vw;
  max-width: 820px; max-height: 820px;
  top: -22%; left: -12%;
  background: radial-gradient(circle, rgba(185, 144, 255, 0.22) 0%, transparent 68%);
}
.bg__glow--mint {
  width: 52vw; height: 52vw;
  max-width: 700px; max-height: 700px;
  right: -14%; bottom: -16%;
  background: radial-gradient(circle, rgba(143, 232, 210, 0.16) 0%, transparent 68%);
}

.bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(80% 60% at 50% 30%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 30%, #000 0%, transparent 100%);
}

/* 星辉弱化模式 */
body.ambient--soft .bg__stars { opacity: 0.24; animation-play-state: paused; }
body.ambient--soft .bg__glow { opacity: 0.45; }
body.ambient--soft .bg__grid { opacity: 0.5; }

@keyframes star-breathe {
  from { opacity: 0.75; }
  to   { opacity: 1; }
}

/* ---------- 容器与通用 ---------- */
.container {
  width: min(var(--container-w), calc(100% - 48px));
  margin: 0 auto;
  position: relative;
}

main, .footer, .nav { position: relative; z-index: 1; }

.section { padding: var(--section-gap) 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.32em;
  color: var(--t-mint);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--t-mint);
  box-shadow: 0 0 12px var(--mf-mint-glow);
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}

.section__sub {
  color: var(--t-ink-soft);
  font-size: 16px;
  max-width: 720px;
  margin-bottom: 56px;
}

/* ---------- 按钮（薄荷青行动方案） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 38px;
  border-radius: 999px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn--primary {
  background: var(--mf-primary-button);
  color: var(--mf-btn-text);
  border: 1px solid var(--t-mint-line);
  box-shadow: 0 12px 34px -18px var(--mf-mint-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 14px 40px -8px var(--mf-mint-glow),
    0 0 0 1px rgba(143, 232, 210, 0.4);
}

.btn--ghost {
  background: var(--t-card);
  border: 1px solid var(--t-line);
  color: var(--t-ink);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  background: var(--t-card-strong);
  border-color: var(--t-line-strong);
  transform: translateY(-2px);
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: var(--t-nav-bg);
  border-bottom-color: var(--t-line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav__inner {
  width: min(var(--container-w), calc(100% - 48px));
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.nav__brand-emblem {
  width: 34px; height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--mf-gold-pale);
  background: linear-gradient(150deg, #4A2B16, #2A1809);
  border: 1px solid rgba(212, 175, 55, 0.55);
  border-radius: 50%;
  box-shadow: inset 0 0 8px rgba(246, 184, 90, 0.35), 0 0 16px var(--mf-gold-glow);
}

/* 后台替换品牌 Logo 后：图片接管徽标（去掉默认底/边框，圆形呈现） */
.nav__brand-emblem--img {
  background: none;
  border: none;
  box-shadow: none;
}
.nav__brand-emblem img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.nav__brand-text {
  font-size: 17px;
  letter-spacing: 0.14em;
}
.nav__brand-text em {
  display: block;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--t-ink-faint);
  font-weight: 400;
  line-height: 1.4;
}

.nav__links {
  display: flex;
  gap: 34px;
  margin-left: auto;
  font-size: 14.5px;
  color: var(--t-ink-soft);
}
.nav__links a {
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1.5px;
  background: var(--t-mint);
  border-radius: 2px;
  transition: right 0.3s ease;
}
.nav__links a:hover { color: var(--t-ink); }
.nav__links a:hover::after { right: 0; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav__ambient {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--t-ink-soft);
  background: var(--t-card);
  border: 1px solid var(--t-line);
  border-radius: 999px;
  transition: all 0.25s ease;
}
.nav__ambient:hover { color: var(--t-ink); border-color: var(--t-line-strong); }
.nav__ambient-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--t-purple);
  box-shadow: 0 0 10px rgba(199, 163, 255, 0.8);
}
body.ambient--soft .nav__ambient-dot {
  background: var(--t-ink-faint);
  box-shadow: none;
}

.nav__login {
  padding: 9px 26px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--t-ink);
  border: 1px solid var(--t-mint-line);
  border-radius: 999px;
  transition: all 0.25s ease;
}
.nav__login:hover {
  background: var(--t-mint-soft);
  box-shadow: 0 0 22px -4px var(--mf-mint-glow);
}

/* ---------- 1 · 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
}
.hero::after {
  content: "";
  position: absolute;
  left: 14%; right: 14%; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--t-mint), var(--t-purple), var(--t-pink), transparent);
  opacity: 0.42;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 6.4vw, 4.8rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: 0.03em;
  margin: 8px 0 28px;
  background: linear-gradient(120deg, var(--t-ink) 30%, var(--t-lilac) 62%, var(--t-mint) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__sub {
  max-width: 640px;
  font-size: 17px;
  color: var(--t-ink-soft);
  margin-bottom: 44px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}

.hero__foot {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--t-ink-faint);
}

.br-mobile { display: none; }

/* ---------- 2 · 品牌起源 ---------- */
.origin__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin: 40px 0 64px;
}
.origin__col p {
  color: var(--t-ink-soft);
  font-size: 16px;
  line-height: 2;
  border-left: 2px solid var(--t-line);
  padding-left: 24px;
}
.origin__col:first-child p { border-left-color: var(--t-mint-line); }

.origin__quote {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--t-ivory);
  text-align: center;
  padding: 56px 24px 0;
  position: relative;
}
.origin__quote::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 56px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--t-gold), transparent);
}

/* ---------- 3 · 使命与愿景 ---------- */
.mission__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 12px;
}

.mission__card {
  padding: 48px 44px;
  border-radius: 24px;
  background: var(--t-card);
  border: 1px solid var(--t-line);
  box-shadow: 0 26px 60px -42px rgba(38, 28, 58, calc(var(--t) * 0.4));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.mission__card:hover {
  transform: translateY(-4px);
  border-color: rgba(143, 232, 210, 0.35);
  box-shadow: 0 24px 60px -30px var(--mf-mint-glow);
}
.mission__card:last-child:hover {
  border-color: rgba(212, 175, 55, 0.4);
  box-shadow: 0 24px 60px -30px var(--mf-gold-glow);
}

.mission__card h3 {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--t-mint);
  margin-bottom: 18px;
}
.mission__card:last-child h3 { color: var(--t-gold); }

.mission__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.65;
  letter-spacing: 0.03em;
  color: var(--t-ink);
}

.mission__note {
  margin-top: 28px;
  font-size: 14.5px;
  color: var(--t-ink-faint);
  letter-spacing: 0.04em;
}

/* ---------- 4 · 我们相信 ---------- */
.beliefs__list {
  margin-top: 16px;
  counter-reset: belief;
}
.beliefs__list li {
  counter-increment: belief;
  display: flex;
  align-items: baseline;
  gap: 28px;
  padding: 30px 0;
  border-bottom: 1px solid var(--t-line);
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.7;
  color: var(--t-ink);
}
.beliefs__list li:first-child { border-top: 1px solid var(--t-line); }
.beliefs__list li::before {
  content: "0" counter(belief);
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--t-mint);
  flex-shrink: 0;
  opacity: 0.85;
}

/* ---------- 5 · 我们正在构建 ---------- */
.building__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.building__card {
  padding: 32px 28px;
  border-radius: 20px;
  background: var(--t-card);
  border: 1px solid var(--t-line);
  box-shadow: 0 26px 60px -42px rgba(38, 28, 58, calc(var(--t) * 0.4));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.building__card:hover {
  transform: translateY(-4px);
  background: var(--t-card-strong);
  border-color: rgba(143, 232, 210, 0.3);
}

.building__card h3 {
  font-size: 16.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  color: var(--t-ink);
}
.building__card h3::before {
  content: "";
  display: block;
  width: 22px; height: 2px;
  border-radius: 2px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--t-mint), transparent);
}
.building__card p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--t-ink-soft);
}

/* ---------- 6 · IP 宇宙 ---------- */
.universe__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.role-card {
  --role-color: var(--mf-mint);
  position: relative;
  padding: 30px 22px 24px;
  border-radius: 20px;
  background: var(--t-card);
  border: 1px solid var(--t-line);
  box-shadow: 0 26px 60px -42px rgba(38, 28, 58, calc(var(--t) * 0.4));
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.role-card::before {
  content: "";
  position: absolute;
  top: -46px; right: -46px;
  width: 130px; height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--role-color) 26%, transparent) 0%, transparent 70%);
  filter: blur(8px);
  transition: opacity 0.3s ease;
  opacity: 0.75;
}
.role-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--role-color) 52%, transparent);
  box-shadow: 0 26px 60px -34px color-mix(in srgb, var(--role-color) 60%, transparent);
}
.role-card:hover::before { opacity: 1; }

.role-card__emblem {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: color-mix(in srgb, var(--role-color) 26%, var(--t-ink));
  background:
    radial-gradient(circle at 32% 28%, color-mix(in srgb, var(--role-color) 78%, #fff 4%) 0%, color-mix(in srgb, var(--role-color) 42%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--role-color) 65%, transparent);
  box-shadow: 0 0 22px -4px color-mix(in srgb, var(--role-color) 55%, transparent);
  margin-bottom: 20px;
}

.role-card__layer {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--t-ink-faint);
}

.role-card__name {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin: 6px 0 2px;
}

.role-card__en {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--t-ink-faint);
  margin-bottom: 14px;
}

.role-card__line {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--t-ink-soft);
  min-height: 72px;
}

.role-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.role-card__meta span {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  color: color-mix(in srgb, var(--role-color) 78%, var(--t-ink));
  background: color-mix(in srgb, var(--role-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--role-color) 34%, transparent);
}

.role-card__quote {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--t-line);
  font-size: 12.5px;
  color: var(--t-ink-faint);
  line-height: 1.7;
}
.role-card__quote::before { content: "「"; }
.role-card__quote::after { content: "」"; }

/* 小象卡：品牌本体，月桂金描边 + 薄荷辉光 */
.role-card--elephant {
  border-color: rgba(212, 175, 55, 0.5);
  background:
    linear-gradient(160deg, rgba(212, 175, 55, 0.10), transparent 42%),
    var(--t-mint-soft);
}
.role-card--elephant .role-card__emblem {
  border-color: rgba(212, 175, 55, 0.7);
  box-shadow: 0 0 26px -2px var(--mf-mint-glow), 0 0 20px -6px var(--mf-gold-glow);
}
.role-card--elephant:hover {
  border-color: rgba(212, 175, 55, 0.75);
  box-shadow: 0 26px 64px -32px var(--mf-mint-glow);
}
.role-card--elephant .role-card__layer { color: var(--t-gold); }

/* ---------- 7 · 品牌原则 ---------- */
.principles__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 28px;
  margin-top: 12px;
}

.principles__col {
  padding: 44px 42px;
  border-radius: 24px;
  background: var(--t-card);
  border: 1px solid var(--t-line);
  box-shadow: 0 26px 60px -42px rgba(38, 28, 58, calc(var(--t) * 0.4));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.principles__col h3 {
  font-size: 15px;
  letter-spacing: 0.26em;
  font-weight: 600;
  color: var(--t-mint);
  margin-bottom: 26px;
}
.principles__col ul li {
  position: relative;
  padding: 13px 0 13px 26px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--t-ink);
  border-bottom: 1px solid var(--t-line);
}
.principles__col ul li:last-child { border-bottom: none; }
.principles__col ul li::before {
  content: "";
  position: absolute;
  left: 4px; top: 22px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--t-mint);
  box-shadow: 0 0 10px var(--mf-mint-glow);
}

.principles__col--muted { opacity: 0.82; }
.principles__col--muted h3 { color: var(--t-pink); }
.principles__col--muted ul li { color: var(--t-ink-soft); }
.principles__col--muted ul li::before {
  background: var(--t-pink);
  box-shadow: 0 0 10px rgba(255, 182, 213, 0.4);
}

/* ---------- 8 · 收束 ---------- */
.closing__inner {
  text-align: center;
  padding: clamp(40px, 8vw, 90px) 0;
}

.closing__title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  line-height: 1.4;
  letter-spacing: 0.03em;
  margin-bottom: 26px;
}

.closing__lines {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  line-height: 2;
  letter-spacing: 0.12em;
  color: var(--t-ink-soft);
  margin-bottom: 48px;
}

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--t-line);
  padding: 56px 0 48px;
  background: var(--t-footer-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.footer__brand p { font-weight: 600; letter-spacing: 0.06em; line-height: 1.6; }
.footer__brand p span {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--t-ink-faint);
}

.footer__links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--t-ink-soft);
}
.footer__links a { transition: color 0.25s ease; }
.footer__links a:hover { color: var(--t-mint); }

.footer__copy {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--t-ink-faint);
}

/* ---------- 逐屏浮现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .bg__stars { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .universe__grid { grid-template-columns: repeat(4, 1fr); }
  .building__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 880px) {
  .nav__links { display: none; }
  .universe__grid { grid-template-columns: repeat(3, 1fr); }
  .building__grid { grid-template-columns: repeat(2, 1fr); }
  .origin__grid { grid-template-columns: 1fr; gap: 28px; }
  .mission__grid { grid-template-columns: 1fr; }
  .principles__grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container, .nav__inner { width: calc(100% - 36px); }
  .br-mobile { display: block; }
  .hero { padding-top: 120px; }
  .universe__grid { grid-template-columns: repeat(2, 1fr); }
  .building__grid { grid-template-columns: 1fr; }
  .role-card__line { min-height: 0; }
  .beliefs__list li { gap: 16px; }
  .mission__card, .principles__col { padding: 34px 26px; }
  .footer__inner { flex-direction: column; gap: 28px; }
  .nav__ambient span:not(.nav__ambient-dot) { display: none; }
  .nav__ambient { padding: 8px 12px; }
}

@media (max-width: 420px) {
  .universe__grid { grid-template-columns: 1fr; }
  .nav__actions .nav__login { padding: 8px 18px; }
}