/* =========================================================
   倍爱妈咪 Bearmami — 品牌官网样式（紫金 · 2026 改版）
   ========================================================= */

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

:root {
  /* 紫金体系 */
  --plum-950: #120B20;
  --plum-900: #1A1029;
  --plum-800: #241636;
  --plum-700: #33204A;

  --purple: #5F3081;
  --purple-600: #7A4AA6;
  --purple-300: #C3A9E0;
  --lilac: #E4D8F5;
  --lilac-2: #F0E9FA;
  --lilac-3: #F8F5FC;

  --gold: #C2A15E;
  --gold-soft: #E3CD9E;

  --paper: #F8F5FC;
  --paper-2: #F1EBFA;
  --white: #FFFFFF;

  --ink: #221A32;
  --ink-2: #544A66;
  --ink-3: #877D96;
  --on-dark: #F5F0FB;
  --on-dark-2: rgba(238, 230, 249, .84);
  --on-dark-3: rgba(238, 230, 249, .64);

  --line: rgba(34, 26, 50, .10);
  --line-dark: rgba(240, 232, 250, .13);

  --radius: 22px;
  --radius-sm: 14px;
  --shadow-sm: 0 2px 12px rgba(45, 25, 75, .07);
  --shadow: 0 34px 64px -34px rgba(45, 25, 75, .38);

  --container: 1180px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", STSong, SimSun, serif;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-serif); font-weight: 600; letter-spacing: .01em; }
p { margin: 0; }

[id] { scroll-margin-top: 92px; }

::selection { background: var(--lilac); color: var(--plum-900); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--plum-900); color: var(--on-dark); padding: 10px 18px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

.container { width: min(var(--container), 100% - 48px); margin-inline: auto; }

/* ============ 通用排版 ============ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 11.5px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--gold); font-weight: 600; margin-bottom: 20px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: currentColor; opacity: .55; flex: none;
}
.eyebrow-light { color: var(--gold-soft); }

h1 {
  font-size: clamp(35px, 4.6vw, 62px);
  line-height: 1.24;
  letter-spacing: -.015em;
}
h1 em {
  font-style: normal; color: var(--gold-soft);
  white-space: nowrap;
}
h2 { font-size: clamp(26px, 3vw, 41px); line-height: 1.34; letter-spacing: -.008em; }
h3 { font-size: 20px; line-height: 1.5; }

.lead { font-size: clamp(16px, 1.15vw, 17.5px); color: var(--on-dark-2); margin-top: 26px; max-width: 33em; line-height: 1.9; }
.section-sub { color: var(--ink-2); margin-top: 18px; max-width: 38em; }

.section { padding: clamp(76px, 9.5vw, 128px) 0; }
.section-head { max-width: 740px; margin-bottom: clamp(40px, 5vw, 62px); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 52px; padding: 0 28px; border-radius: 8px;
  font-size: 14.5px; font-weight: 600; letter-spacing: .04em;
  transition: transform .25s ease, background .25s ease, color .25s ease, box-shadow .25s ease, border-color .25s ease;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(180deg, #E9D6AC 0%, var(--gold) 100%);
  color: #2A1B3D;
  box-shadow: 0 16px 30px -18px rgba(194, 161, 94, .9), inset 0 1px 0 rgba(255, 255, 255, .45);
}
.btn-primary:hover { background: linear-gradient(180deg, #F0E0BC 0%, #CBAB69 100%); }
.btn-ghost { background: transparent; color: var(--on-dark); border-color: rgba(240, 232, 250, .30); }
.btn-ghost:hover { border-color: rgba(240, 232, 250, .62); background: rgba(255, 255, 255, .06); }
.btn-outline { background: transparent; color: var(--on-dark); border-color: rgba(240, 232, 250, .32); }
.btn-outline:hover { border-color: var(--gold-soft); color: var(--gold-soft); }
.btn-lg { height: 58px; padding: 0 34px; font-size: 15.5px; }

/* ============ 导航 ============ */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  color: var(--on-dark);
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease, color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(250, 247, 253, .90);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px -26px rgba(35, 20, 60, .8);
  color: var(--ink);
}
.nav-inner {
  width: min(var(--container), 100% - 48px); margin-inline: auto;
  height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 42px; height: 42px; flex: none; display: block; object-fit: cover; border-radius: 22%; box-shadow: 0 6px 18px -10px rgba(26, 16, 41, .8); }
.brand-text { display: flex; align-items: center; }
.wordmark { height: 34px; width: auto; display: block; }
.wordmark-on-light { display: none; }
.site-header.is-scrolled .wordmark-on-dark { display: none; }
.site-header.is-scrolled .wordmark-on-light { display: block; }

.nav-links { display: flex; align-items: center; gap: 32px; font-size: 14.5px; color: inherit; }
.nav-links a { position: relative; padding: 6px 0; opacity: .78; transition: color .2s ease, opacity .2s ease; }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: var(--gold); transition: width .3s ease;
}
.nav-links a:not(.nav-cta):hover { opacity: 1; }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  background: transparent; border: 1px solid rgba(227, 205, 158, .55);
  color: var(--gold-soft) !important; padding: 11px 22px !important; opacity: 1 !important;
  border-radius: 8px; font-weight: 600; font-size: 13.5px; letter-spacing: .04em;
  transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.nav-cta:hover { transform: translateY(-1px); background: rgba(227, 205, 158, .10); border-color: var(--gold-soft); }
.site-header.is-scrolled .nav-cta { color: var(--purple) !important; border-color: rgba(95, 48, 129, .34); }
.site-header.is-scrolled .nav-cta:hover { background: rgba(95, 48, 129, .06); border-color: var(--purple); }
.nav-links a.is-active:not(.nav-cta) { opacity: 1; color: inherit; }
.nav-links a.is-active:not(.nav-cta)::after { width: 100%; }

.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid rgba(240, 232, 250, .28);
  background: transparent; color: inherit; border-radius: 10px; cursor: pointer; padding: 0;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.site-header.is-scrolled .nav-toggle { border-color: var(--line); }
.nav-toggle span { display: block; width: 18px; height: 1.6px; background: currentColor; transition: transform .28s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ============ 首屏 ============ */
.hero {
  position: relative;
  padding: clamp(136px, 15vw, 186px) 0 clamp(54px, 7vw, 90px);
  color: var(--on-dark);
  background:
    radial-gradient(75% 55% at 82% -4%, rgba(122, 74, 166, .58) 0%, rgba(122, 74, 166, 0) 62%),
    radial-gradient(58% 50% at 4% 22%, rgba(95, 48, 129, .60) 0%, rgba(95, 48, 129, 0) 64%),
    linear-gradient(180deg, #1D1230 0%, var(--plum-900) 55%, #150D22 100%);
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.hero::before {
  right: -180px; top: -280px; width: 760px; height: 760px;
  border: 1px solid rgba(194, 161, 94, .22);
}
.hero::after {
  right: -40px; top: -120px; width: 480px; height: 480px;
  border: 1px solid rgba(240, 232, 250, .07);
}
.hero-grid {
  display: grid; grid-template-columns: 1.06fr .94fr; gap: clamp(32px, 5vw, 66px);
  align-items: center; position: relative; z-index: 1;
}
.hero h1 { color: #FCF9FF; }
.hero h1::after {
  content: ""; display: block; width: 64px; height: 2px; margin-top: 26px;
  background: linear-gradient(90deg, var(--gold-soft), rgba(194, 161, 94, 0));
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: clamp(22px, 3.6vw, 48px);
  margin-top: clamp(38px, 5vw, 58px); padding-top: 30px; border-top: 1px solid var(--line-dark);
}
.hero-stats li { display: flex; flex-direction: column; gap: 5px; }
.hero-stats strong { font-family: var(--font-serif); font-size: 25px; line-height: 1.2; letter-spacing: .02em; color: #FCF9FF; }
.hero-stats span { font-size: 12.5px; color: rgba(238, 230, 249, .74); letter-spacing: .1em; }

/* 首屏插画 */
.hero-visual { display: flex; justify-content: center; }
.pack-card {
  position: relative; width: min(100%, 468px); aspect-ratio: 1 / 1;
  border-radius: 28px;
  background: linear-gradient(155deg, #FFFFFF 0%, #F4EDFC 56%, #E2D5F3 100%);
  border: 1px solid rgba(255, 255, 255, .6);
  box-shadow: 0 60px 100px -46px rgba(0, 0, 0, .85), 0 0 0 1px rgba(194, 161, 94, .10);
  display: grid; place-items: center;
  overflow: visible;
}
.pack-card::before {
  content: ""; position: absolute; inset: 17px; border-radius: 20px;
  border: 1px solid rgba(194, 161, 94, .42); pointer-events: none;
}
.pack-glow {
  position: absolute; width: 64%; height: 64%; border-radius: 50%;
  background: radial-gradient(circle, rgba(214, 196, 242, .95) 0%, rgba(214, 196, 242, 0) 70%);
  filter: blur(4px);
}
.pack-bag { width: 74%; height: 74%; position: relative; z-index: 2; }

.chip {
  position: absolute; z-index: 3;
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(95, 48, 129, .12);
  color: var(--purple);
  font-size: 12.5px; font-weight: 600; letter-spacing: .04em;
  padding: 10px 16px; border-radius: 6px;
  box-shadow: 0 14px 30px -18px rgba(26, 16, 41, .9);
  backdrop-filter: blur(6px);
  animation: float 7.5s ease-in-out infinite;
}
.chip-1 { top: 11%; left: -7%; animation-delay: -.5s; }
.chip-2 { top: 47%; right: -6%; animation-delay: -2.6s; }
.chip-3 { bottom: 8%; left: 3%; animation-delay: -4.4s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* 信任条 */
.trust-strip {
  margin-top: clamp(44px, 6vw, 70px);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  padding: 22px 28px; border-radius: 8px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid var(--line-dark);
  font-size: 13px; color: var(--on-dark-2); letter-spacing: .04em;
}
.trust-strip li { display: flex; align-items: center; gap: 10px; justify-content: center; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); flex: none; box-shadow: 0 0 0 4px rgba(194, 161, 94, .14); }

/* ============ 品牌故事 ============ */
.story { background: var(--white); }
.story-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: clamp(36px, 6vw, 84px); align-items: center; }
.story-photo {
  position: relative; border-radius: 24px; overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid rgba(95, 48, 129, .10);
}
.story-photo svg { width: 100%; height: auto; }
.story-badge {
  position: absolute; left: 22px; bottom: 22px;
  background: rgba(255, 255, 255, .96); border-radius: 10px; padding: 14px 22px;
  display: flex; flex-direction: column; box-shadow: var(--shadow-sm);
  border-left: 2px solid var(--gold);
}
.story-badge strong { font-family: var(--font-serif); font-size: 23px; line-height: 1.1; color: var(--purple); }
.story-badge span { font-size: 11px; color: var(--ink-3); letter-spacing: .12em; margin-top: 4px; }

.story-copy p { color: var(--ink-2); margin-top: 20px; }
.story-copy h2 { margin-bottom: 6px; }
.story-copy b { color: var(--purple); font-weight: 600; }

.story-points { margin-top: 34px; display: grid; gap: 0; }
.story-points li {
  display: grid; grid-template-columns: 130px 1fr; gap: 16px; align-items: baseline;
  padding: 16px 0; border-top: 1px solid var(--line);
}
.story-points li:last-child { border-bottom: 1px solid var(--line); }
.story-points b { font-family: var(--font-serif); font-size: 16px; color: var(--ink); }
.story-points span { font-size: 13.5px; color: var(--ink-3); }

/* ============ 产品 ============ */
.products { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.product-card {
  background: var(--white); border-radius: 18px; overflow: hidden;
  border: 1px solid rgba(95, 48, 129, .10);
  display: flex; flex-direction: column;
  transition: transform .38s cubic-bezier(.2, .7, .2, 1), box-shadow .38s ease, border-color .38s ease;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
  border-color: rgba(194, 161, 94, .50);
}

.product-media {
  position: relative; height: 164px; display: grid; place-items: center;
}
.media-1 { background: linear-gradient(150deg, #F1E9FC 0%, #D9C6F2 100%); }
.media-2 { background: linear-gradient(150deg, #E9DEF9 0%, #C7ADE8 100%); }
.media-3 { background: linear-gradient(150deg, #EDE8F9 0%, #CFC4EE 100%); }
.media-4 { background: linear-gradient(150deg, #F6ECFA 0%, #DCC4EE 100%); }
.product-media svg { width: 94px; height: 94px; }
.tag {
  position: absolute; top: 14px; left: 14px;
  font-size: 11px; letter-spacing: .08em; font-weight: 600;
  background: rgba(255, 255, 255, .94); color: var(--purple);
  padding: 6px 12px; border-radius: 4px;
}
.tag-dark { color: #4A2765; }
.tag-sage { color: #5B3E82; }
.tag-warm { color: #8A6A2F; }

.product-body { padding: 24px 22px 20px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 21px; }
.product-desc { font-size: 13.5px; color: var(--ink-2); margin-top: 10px; line-height: 1.78; }
.product-list { margin-top: 18px; display: grid; gap: 9px; font-size: 12.5px; color: var(--ink-3); }
.product-list li { position: relative; padding-left: 14px; line-height: 1.7; }
.product-list li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 4px; height: 4px;
  border-radius: 50%; background: var(--purple-300);
}
.product-foot {
  margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-size: 12px; color: var(--ink-3); letter-spacing: .04em;
}
.product-foot a { color: var(--purple); font-weight: 600; transition: opacity .2s ease; }
.product-foot a:hover { opacity: .65; }

.product-note {
  margin-top: 40px; text-align: center; font-size: 14px; color: var(--ink-3);
}

/* ============ 包里有什么 ============ */
.inside { background: var(--white); }
.inside-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.inside-card {
  position: relative; padding: 32px 24px 28px; border-radius: 16px;
  background: var(--lilac-3); border: 1px solid rgba(95, 48, 129, .09);
  transition: background .3s ease, transform .3s ease, border-color .3s ease;
}
.inside-card:hover { background: #FFFFFF; border-color: rgba(194, 161, 94, .45); transform: translateY(-4px); }
.inside-num {
  font-family: var(--font-serif); font-size: 12.5px; letter-spacing: .2em;
  color: var(--gold); font-weight: 600;
}
.inside-card h3 { font-size: 20px; margin-top: 12px; }
.inside-when { font-size: 11.5px; color: var(--ink-3); letter-spacing: .1em; margin-top: 6px; }
.inside-card ul { margin-top: 20px; display: grid; gap: 10px; }
.inside-card li {
  font-size: 13.5px; color: var(--ink-2); padding-left: 16px; position: relative; line-height: 1.65;
}
.inside-card li::before {
  content: ""; position: absolute; left: 2px; top: 9px; width: 5px; height: 1px;
  background: var(--purple-300);
}

/* ============ 材质与质检（深紫） ============ */
.craft {
  color: var(--on-dark);
  background:
    radial-gradient(60% 60% at 88% 10%, rgba(122, 74, 166, .42) 0%, rgba(122, 74, 166, 0) 66%),
    linear-gradient(180deg, #1B1129 0%, var(--plum-900) 100%);
}
.craft-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(36px, 6vw, 76px); }
.craft-copy h2 { margin-bottom: 22px; color: #FCF9FF; }
.craft-copy p { color: var(--on-dark-2); }
.craft-items { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.craft-item {
  padding: 28px 24px; border-radius: 14px; background: rgba(255, 255, 255, .062);
  border: 1px solid rgba(240, 232, 250, .17);
  transition: background .3s ease, border-color .3s ease;
}
.craft-item:hover { background: rgba(255, 255, 255, .075); border-color: rgba(194, 161, 94, .38); }
.craft-icon {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  background: rgba(194, 161, 94, .14); color: var(--gold-soft);
  border: 1px solid rgba(194, 161, 94, .32);
  font-family: var(--font-serif); font-size: 14px; font-weight: 700; letter-spacing: .04em;
}
.craft-item h3 { font-size: 17px; margin-top: 18px; color: #F7F3FC; }
.craft-item p { font-size: 13.5px; color: var(--on-dark-3); margin-top: 9px; line-height: 1.88; }

/* ============ 流程 ============ */
.process { background: var(--white); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.steps li {
  position: relative; padding: 28px 28px 0 0;
  border-top: 1px solid var(--line);
}
.steps li:last-child { padding-right: 0; }
.steps li::before {
  content: ""; position: absolute; top: -3px; left: 0; width: 6px; height: 6px;
  border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px rgba(194, 161, 94, .16);
}
.step-num {
  font-family: var(--font-serif); font-size: 12.5px; letter-spacing: .22em; color: var(--gold);
}
.steps h3 { font-size: 20px; margin-top: 12px; }
.steps p { font-size: 13.5px; color: var(--ink-3); margin-top: 10px; line-height: 1.85; max-width: 24em; }

/* ============ FAQ ============ */
.faq { background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%); }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(32px, 5vw, 68px); align-items: start; }
.faq-head { position: sticky; top: 112px; }
.faq-hint { margin-top: 22px; font-size: 13.5px; color: var(--ink-3); }
.faq-hint a { color: var(--purple); font-weight: 600; border-bottom: 1px solid rgba(95, 48, 129, .32); }
.faq-list { display: grid; gap: 0; }
.faq-list details {
  border-bottom: 1px solid var(--line); padding: 4px 0;
}
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 23px 0; font-family: var(--font-serif); font-size: 17.5px; font-weight: 600;
  transition: color .2s ease;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: ""; flex: none; width: 11px; height: 11px;
  border-right: 1.4px solid var(--ink-3); border-bottom: 1.4px solid var(--ink-3);
  transform: rotate(45deg) translateY(-2px); transition: transform .3s ease, border-color .3s ease;
}
.faq-list details[open] summary { color: var(--purple); }
.faq-list details[open] summary::after { transform: rotate(-135deg) translateY(-2px); border-color: var(--gold); }
.faq-list details p {
  font-size: 14px; color: var(--ink-2); padding: 0 40px 26px 0; line-height: 1.95; margin-top: -4px;
}

/* ============ CTA ============ */
.cta-section { background: var(--paper); padding-bottom: clamp(84px, 10vw, 132px); }
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(150deg, #3F2364 0%, #2A1744 56%, #4A2C76 100%);
  color: var(--on-dark); border-radius: 26px;
  padding: clamp(50px, 7vw, 86px) clamp(28px, 6vw, 80px);
  text-align: center;
  border: 1px solid rgba(194, 161, 94, .22);
}
.cta-band::before,
.cta-band::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.cta-band::before {
  width: 460px; height: 460px; right: -150px; top: -190px;
  background: radial-gradient(circle, rgba(194, 161, 94, .22) 0%, rgba(194, 161, 94, 0) 68%);
}
.cta-band::after {
  width: 380px; height: 380px; left: -130px; bottom: -170px;
  background: radial-gradient(circle, rgba(195, 169, 224, .26) 0%, rgba(195, 169, 224, 0) 70%);
}
.cta-band h2 { font-size: clamp(25px, 3.1vw, 39px); line-height: 1.45; position: relative; color: #FCF9FF; }
.cta-sub {
  color: var(--on-dark-2); max-width: 33em; margin: 22px auto 0;
  font-size: 14.5px; position: relative;
}
.cta-actions {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px;
  margin-top: 36px; position: relative;
}
.cta-or { font-size: 13px; color: var(--on-dark-3); }
.cta-note { margin-top: 24px; font-size: 12px; color: var(--on-dark-3); position: relative; letter-spacing: .08em; }

/* ============ 页脚 ============ */
.site-footer { background: var(--plum-950); color: var(--on-dark-2); padding: clamp(60px, 7.5vw, 84px) 0 28px; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.1fr; gap: clamp(28px, 4vw, 60px);
  padding-bottom: 52px; border-bottom: 1px solid rgba(240, 232, 250, .09);
}
.footer-brand .wordmark-on-light { display: none; }
.footer-slogan { font-family: var(--font-serif); font-size: 17px; color: var(--on-dark); margin-top: 24px; }
.footer-desc { font-size: 12.5px; margin-top: 12px; color: rgba(235, 226, 247, .45); max-width: 26em; line-height: 1.85; }
.footer-col h4 { font-family: var(--font-sans); font-size: 11.5px; letter-spacing: .2em; color: rgba(235, 226, 247, .42); font-weight: 600; }
.footer-col ul { margin-top: 20px; display: grid; gap: 12px; font-size: 13.5px; }
.footer-col a { transition: color .2s ease; }
.footer-col a:hover { color: var(--on-dark); }
.footer-bottom {
  padding-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-size: 11.5px; color: rgba(235, 226, 247, .34); letter-spacing: .04em;
}
.footer-legal { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.footer-legal a:hover { color: rgba(235, 226, 247, .72); }

/* ============ 动效 ============ */
[data-reveal] {
  opacity: 0; transform: translateY(22px);
  transition: opacity .85s cubic-bezier(.2, .7, .2, 1), transform .85s cubic-bezier(.2, .7, .2, 1);
  transition-delay: var(--d, 0ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .inside-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 38px; }
  .steps li:nth-child(2) { padding-right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 44px; }
}

@media (max-width: 940px) {
  .nav-toggle { display: flex; }
  .site-header:has(.nav-toggle[aria-expanded="true"]) {
    background: rgba(250, 247, 253, .97); color: var(--ink); border-bottom-color: var(--line);
  }
  .site-header:has(.nav-toggle[aria-expanded="true"]) .nav-toggle { border-color: var(--line); }
  .nav-links {
    position: fixed; inset: 82px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(250, 247, 253, .99);
    color: var(--ink);
    backdrop-filter: blur(16px);
    padding: 8px 24px 28px; border-bottom: 1px solid var(--line);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
    max-height: calc(100vh - 82px); overflow-y: auto;
  }
  .nav-links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-links a:not(.nav-cta)::after { display: none; }
  .nav-cta { margin-top: 20px; text-align: center; padding: 15px 22px !important; border-bottom: none !important; }

  .hero { padding-top: 124px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { margin-top: 44px; }
  .pack-card { width: min(72vw, 372px); }
  .chip-1 { left: -3%; }
  .chip-2 { right: -3%; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); border-radius: 10px; gap: 16px; padding: 24px 26px; }
  .trust-strip li { justify-content: flex-start; }

  .story-grid, .craft-grid, .faq-grid { grid-template-columns: 1fr; }
  .story-media { max-width: 470px; }
  .faq-head { position: static; }
  .craft-items { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .container { width: calc(100% - 36px); }
  .nav-inner { width: calc(100% - 36px); height: 72px; }
  .nav-links { top: 72px; max-height: calc(100vh - 72px); }
  .brand-mark { width: 34px; height: 34px; }
  .wordmark { height: 27px; }

  .hero { padding-top: 108px; }
  .hero-actions { margin-top: 30px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .hero-stats { gap: 22px 30px; }
  .hero-stats strong { font-size: 21px; }

  .product-grid, .inside-grid, .craft-items { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; row-gap: 0; }
  .steps li { padding: 26px 0 0; border-top: 1px solid var(--line); }
  .steps li:last-child { padding-bottom: 0; }
  .steps p { max-width: none; }

  .story-points li { grid-template-columns: 1fr; gap: 4px; }
  .faq-list summary { font-size: 15.5px; padding: 19px 0; }
  .faq-list details p { padding-right: 8px; }

  .cta-band { border-radius: 20px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }
  .cta-or { display: none; }

  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}