/* =====================================================================
   MyTime — 产品宣传页
   品牌紫取自 App 默认主题（MyTime 紫 #64558F / #E9E3F2）
   Mobile First。所有断点都不得产生横向滚动。
   ===================================================================== */

:root {
  /* 品牌 */
  --brand: #64558F;
  --brand-hover: #584A80;
  --brand-deep: #3B2E63;
  --brand-deeper: #2A2049;
  --brand-soft: #E9E3F2;
  --brand-mist: #F4F1F9;

  /* 中性 */
  --bg: #FAF8FC;
  --surface: #FFFFFF;
  --ink: #1D1B20;
  --ink-2: #4A4553;
  --ink-3: #7A7488;
  --line: #E9E3EF;
  --up: #1B7E3C;
  --down: #B0574B;

  /* 排版 */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;

  /* 尺度 */
  --wrap: 1160px;
  --gutter: 20px;
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 1px 2px rgba(29, 27, 32, .04), 0 4px 12px rgba(29, 27, 32, .04);
  --shadow-md: 0 2px 4px rgba(29, 27, 32, .04), 0 12px 32px rgba(29, 27, 32, .07);
  --shadow-lg: 0 8px 24px rgba(59, 46, 99, .10), 0 32px 64px rgba(59, 46, 99, .12);

  --header-h: 60px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  /* 任何宽度都不允许横向滚动 */
  overflow-x: hidden;
  max-width: 100vw;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; border: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 650; line-height: 1.28; letter-spacing: -.01em; }
a { color: var(--brand); text-decoration: none; }
strong { font-weight: 650; color: var(--ink); }

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

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--brand); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ------------------------------------------------------------- layout */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.wrap.narrow { max-width: 760px; }

.section { padding-block: 72px; }
.section-soft { background: var(--surface); }
.section-dark { background: var(--brand-deep); color: #fff; }
.section-brand { background: var(--brand); color: #fff; }

.section-head { margin-bottom: 44px; }

/* ------------------------------------------------------------- type */
.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
}

.h2 {
  font-size: clamp(28px, 7.4vw, 40px);
  font-weight: 680;
}
.h2-accent { color: var(--brand); }

.h3 { font-size: clamp(19px, 4.6vw, 22px); margin-bottom: 10px; }

.lede { margin-top: 20px; color: var(--ink-2); font-size: clamp(15px, 3.9vw, 17px); }
.lede-strong {
  margin-top: 18px;
  font-size: clamp(19px, 5vw, 24px);
  font-weight: 650;
  color: var(--brand);
}

.closing {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: clamp(17px, 4.4vw, 21px);
  line-height: 1.7;
}

/* ------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 620;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px rgba(100, 85, 143, .22);
  animation: breathe 4.5s ease-in-out infinite;
}
.btn-primary:hover { background: var(--brand-hover); box-shadow: 0 10px 26px rgba(100, 85, 143, .30); }

.btn-ghost {
  background: var(--surface);
  color: var(--brand);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--brand); background: var(--brand-mist); }

.btn-onbrand {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
}
.btn-onbrand:hover { background: #F6F3FB; }

.btn-sm { min-height: 42px; padding: 0 18px; font-size: 15px; }
.btn-lg { min-height: 60px; padding: 0 40px; font-size: 18px; }

.btn-block { width: 100%; }

.link-btn {
  margin-top: 26px;
  min-height: 44px;
  padding: 6px 10px;
  border: 0;
  background: none;
  color: rgba(255, 255, 255, .92);
  font-family: inherit;
  font-size: 15px;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
}

@keyframes breathe {
  0%, 100% { box-shadow: 0 6px 18px rgba(100, 85, 143, .22); }
  50%      { box-shadow: 0 6px 24px rgba(100, 85, 143, .34); }
}

/* ------------------------------------------------------------- header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 252, .82);
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled {
  background: rgba(250, 248, 252, .72);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 4px 2px;
  color: var(--ink);
}
.brand-mark { width: 30px; height: 30px; border-radius: 9px; object-fit: cover; }
.brand-name { font-size: 18px; font-weight: 680; letter-spacing: -.01em; }

.nav { display: none; }
.header-cta { margin-left: auto; }

/* ------------------------------------------------------------- hero */
.hero { padding-block: 40px 64px; }
.hero-inner { display: flex; flex-direction: column; gap: 40px; }

.hero-title {
  font-size: clamp(38px, 11.5vw, 64px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.14;
}
.hero-lead {
  margin-top: 18px;
  font-size: clamp(17px, 4.6vw, 21px);
  font-weight: 600;
  color: var(--brand);
}
.hero-body {
  margin-top: 16px;
  max-width: 34em;
  color: var(--ink-2);
  font-size: clamp(15px, 3.9vw, 17px);
}
.hero-actions {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.hero-actions .btn { width: 100%; }
.hero-note { margin-top: 14px; font-size: 13px; color: var(--ink-3); }

/* 手机外框 */
.hero-visual { position: relative; display: flex; justify-content: center; }

.device {
  position: relative;
  width: min(300px, 74vw);
  /* 手机端只露上半部分，保证首屏能同时看到文案与下载按钮 */
  height: clamp(300px, 46vh, 400px);
  padding: 9px;
  border-radius: 40px;
  background: #211D29;
  box-shadow: var(--shadow-lg);
}.device-screen {
  height: 100%;
  border-radius: 32px;
  overflow: hidden;
  background: #fff;
  -webkit-mask-image: linear-gradient(to bottom, #000 78%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 78%, transparent 100%);
}
.device-screen img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.device-notch {
  position: absolute;
  top: 18px; left: 50%;
  width: 78px; height: 20px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #211D29;
}

.float-chip {
  position: absolute;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  color: var(--brand);
  font-size: 13px;
  font-weight: 620;
  white-space: nowrap;
  animation: float 7s ease-in-out infinite;
}
.chip-a { left: 0; top: 8%; }
.chip-b { right: 0; top: 40%; animation-delay: -2.4s; }
.chip-c { left: 2%; bottom: 4%; animation-delay: -4.8s; }

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

/* ------------------------------------------------------------ 视频区 */
.video-block { max-width: 1000px; margin-inline: auto; }
.video-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #211D29;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.video-frame video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #211D29;
}
.video-note {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-3);
}

/* -------------------------------------------------- wallet / 价值区 */
.wallet {
  display: grid;
  gap: 30px;
  align-items: center;
}
.wallet-shot { display: flex; justify-content: center; }
.wallet-frame {
  position: relative;
  width: min(258px, 66vw);
  padding: 8px;
  border-radius: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.wallet-frame img {
  width: 100%;
  border-radius: 22px;
  aspect-ratio: 1080 / 2354;
  object-fit: cover;
  object-position: center top;
}
/* 高亮框：位置按真实截图里「可用时间」那一块的比例（截图 1080×2354） */
.wallet-hl {
  position: absolute;
  left: calc(8px + 2.5% * (100% - 16px) / 1);
  top: 15.6%;
  width: 46%;
  height: 10%;
  border: 3px solid var(--brand);
  border-radius: 14px;
  box-shadow: 0 0 0 5px rgba(100, 85, 143, .16);
  pointer-events: none;
}
.wallet-body { text-align: center; }
.wallet-src { margin-top: 8px; font-size: 12px; color: var(--ink-3); }
.wallet-big { display: flex; align-items: baseline; justify-content: center; gap: 8px; }
.wallet-number { font-size: clamp(64px, 20vw, 104px); font-weight: 700; color: var(--brand); letter-spacing: -.03em; line-height: 1; }
.wallet-unit { font-size: clamp(18px, 5vw, 24px); font-weight: 600; color: var(--brand); }
.wallet-caption { margin-top: 14px; font-size: clamp(15px, 4vw, 18px); font-weight: 600; }

.wallet-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 26px;
  text-align: left;
}
.wallet-stats li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .82);
  border: 1px solid var(--line);
}
.wallet-stats .k { font-size: 14px; color: var(--ink-3); }
.wallet-stats .v { font-size: 16px; font-weight: 650; font-variant-numeric: tabular-nums; }
.v.up { color: var(--up); }
.v.down { color: var(--down); }

/* ------------------------------------------------------------- steps */
.steps { display: grid; gap: 18px; }
.step {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.step-index { font-size: 12px; font-weight: 700; letter-spacing: .16em; color: var(--brand); }
.step-body { margin-top: 10px; }
.step-body p { color: var(--ink-2); font-size: 15px; }

.step-visual { margin-top: 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.step-shot {
  padding: 6px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.step-shot img {
  width: min(190px, 48vw);
  border-radius: 18px;
  aspect-ratio: 1080 / 2354;
  object-fit: cover;
  object-position: center top;
}
.tag {
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--brand-mist);
  border: 1px solid var(--line);
  font-size: 15px;
  font-weight: 600;
}
.tag-accent { background: var(--brand); border-color: var(--brand); color: #fff; }
.arrow { color: var(--ink-3); }
.step-foot { width: 100%; font-size: 14px; color: var(--ink-3); }

.countdown {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  padding: 10px 18px;
  border-radius: 16px;
  background: var(--brand-deep);
}
.countdown.is-over { background: var(--ink-3); }
.cd-main {
  font-size: clamp(24px, 6.6vw, 30px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: #fff;
}

/* ------------------------------------------------------------- cards */
.cards { display: grid; gap: 16px; }
.card {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card p { margin-top: 8px; color: var(--ink-2); font-size: 15px; }

/* ------------------------------------------------------------ compare */
.compare { display: grid; gap: 18px; }
.compare-col {
  padding: 32px 26px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  text-align: center;
}
.compare-col.is-hero { background: rgba(255, 255, 255, .13); border-color: rgba(255, 255, 255, .3); }
.compare-title { font-size: 15px; font-weight: 650; opacity: .8; }
.compare-label { margin-top: 16px; font-size: 13px; opacity: .68; }
.compare-number {
  margin-top: 4px;
  font-size: clamp(40px, 12vw, 60px);
  font-weight: 700;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.compare-number.is-muted { opacity: .5; }
.compare-note { margin-top: 14px; font-size: 15px; opacity: .85; }
.compare-note strong { color: #fff; }

.section-dark .h2 { color: #fff; }
.compare-closing { margin-top: 48px; text-align: center; }

/* ----------------------------------------------------------- tutorial */
.tutorial { display: grid; gap: 44px; }
.tut { display: grid; gap: 22px; }
.tut-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 15px;
  font-weight: 700;
}
.tut-text .h3 { margin-top: 14px; }
.tut-text p { margin-top: 8px; color: var(--ink-2); font-size: 15px; }
.tut-emphasis {
  display: inline-block;
  margin-top: 14px !important;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--brand);
  color: #fff !important;
  font-size: 18px;
  font-weight: 700;
}
.tut-shot { display: flex; justify-content: center; }
.tut-shot img {
  width: min(240px, 62vw);
  border-radius: 26px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  aspect-ratio: 1080 / 2354;
  object-fit: cover;
  object-position: center top;
}
.tut-closing { margin-top: 52px; text-align: center; }

/* ------------------------------------------------------------ gallery */
.gallery { display: grid; gap: 34px; }
.shot { margin: 0; text-align: center; }
.shot-frame {
  display: inline-block;
  padding: 8px;
  border-radius: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  transition: transform .24s ease;
}
.shot:hover .shot-frame { transform: translateY(-4px); }
.shot-frame img {
  width: min(220px, 58vw);
  border-radius: 22px;
  aspect-ratio: 1080 / 2354;
  object-fit: cover;
  object-position: center top;
}
.shot figcaption { margin-top: 16px; color: var(--ink-2); font-size: 15px; }
.shot figcaption strong { display: block; margin-bottom: 4px; font-size: 16px; color: var(--ink); }

/* ----------------------------------------------------------- timeline */
.timeline { display: grid; gap: 0; }
.tl {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-left: 2px solid var(--line);
  padding-left: 20px;
  position: relative;
}
.tl::before {
  content: "";
  position: absolute;
  left: -7px; top: 26px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--brand);
  border: 2px solid var(--bg);
}
.tl-time { font-size: 14px; font-weight: 700; color: var(--brand); font-variant-numeric: tabular-nums; }
.tl-title { font-size: 16px; }
.tl-value { margin-top: 2px; font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.tl-value.is-over { color: var(--ink-3); }

.story-end { margin-top: 44px; text-align: center; }
.story-end p { color: var(--ink-2); }
.story-end .h2 { margin-top: 14px; color: var(--brand); }
.story-final { margin-top: 18px; font-size: 17px; font-weight: 600; }

/* ------------------------------------------------------------ privacy */
.privacy p { color: var(--ink-2); font-size: 15px; }
.privacy p + p { margin-top: 12px; }

.disclosure { margin-top: 22px; }
.disclosure > summary {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 4px;
  color: var(--brand);
  font-size: 15px;
  font-weight: 620;
  cursor: pointer;
  list-style: none;
}
.disclosure > summary::-webkit-details-marker { display: none; }
.disclosure > summary::after {
  content: "＋";
  margin-left: 8px;
  font-size: 15px;
}
.disclosure[open] > summary::after { content: "－"; }
.disclosure-body {
  padding: 4px 4px 8px;
  color: var(--ink-2);
  font-size: 15px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.disclosure-body p + p { margin-top: 10px; }

/* ----------------------------------------------------------- download */
.download-inner { text-align: center; }
.section-brand .h2, .download-title { color: #fff; }
.download-sub { margin-top: 16px; font-size: clamp(16px, 4.2vw, 19px); color: rgba(255, 255, 255, .92); }
.download-brand { display: inline-flex; align-items: center; gap: 12px; margin-top: 32px; }
.download-logo { width: 56px; height: 56px; border-radius: 16px; background: #fff; object-fit: cover; }
.download-name { font-size: 26px; font-weight: 700; color: #fff; letter-spacing: -.01em; }
.section-brand .btn { margin-top: 30px; }
.download-note { margin-top: 16px; font-size: 13px; color: rgba(255, 255, 255, .8); }

/* ------------------------------------------------------------- footer */
.site-footer { padding-block: 48px 40px; background: var(--brand-mist); }
.footer-inner { display: grid; gap: 26px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-logo { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; }
.footer-name { font-size: 17px; font-weight: 680; }
.footer-tag { font-size: 14px; color: var(--ink-3); }

.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--ink-2); font-size: 15px; }
.footer-nav a:hover { color: var(--brand); }
.footer-legal a { color: var(--ink-3); }
.footer-legal .is-reserved { cursor: default; }

.footer-meta { font-size: 13px; color: var(--ink-3); border-top: 1px solid var(--line); padding-top: 20px; }

/* -------------------------------------------------------------- modal */
.modal {
  width: min(440px, calc(100vw - 40px));
  padding: 0;
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-lg);
}
.modal::backdrop { background: rgba(29, 27, 32, .48); }
.modal-body { padding: 28px 26px; }
.modal-body p { margin-top: 12px; color: var(--ink-2); font-size: 15px; }
.modal-body .btn { margin-top: 22px; }

/* ------------------------------------------------------------- reveal */
/* 默认可见：没有 JS（或 JS 出错）时页面依然是完整的。
   `has-js` 由 <head> 里的内联脚本加上，所以不会出现"先显示再隐藏"的闪烁。 */
.reveal { opacity: 1; transform: none; }
.has-js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.has-js .reveal.is-in { opacity: 1; transform: none; }

/* ================================================================ 640 */
@media (min-width: 640px) {
  :root { --gutter: 28px; }
  .section { padding-block: 88px; }

  .hero { padding-block: 56px 80px; }
  .hero-actions { flex-direction: row; align-items: center; }
  .hero-actions .btn { width: auto; }

  .device { height: auto; aspect-ratio: 1080 / 2354; width: min(320px, 60vw); }
  .device-screen { -webkit-mask-image: none; mask-image: none; }
  .device-screen img { height: 100%; }

  .wallet-stats { grid-template-columns: repeat(3, 1fr); }
  .wallet-stats li { flex-direction: column; align-items: flex-start; gap: 4px; text-align: left; }

  .cards { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .compare { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .gallery { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .tut-shot img { width: 220px; }
  .shot-frame img { width: 200px; }

  .footer-inner { grid-template-columns: repeat(2, 1fr); align-items: start; }
  .footer-meta { grid-column: 1 / -1; }
}

/* ================================================================ 900 */
@media (min-width: 900px) {
  :root { --header-h: 68px; }

  .nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
  .nav a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    color: var(--ink-2);
    font-size: 15px;
    font-weight: 550;
    transition: color .18s ease;
  }
  .nav a:hover { color: var(--brand); }
  .header-cta { margin-left: 30px; }

  .hero { padding-block: 56px 84px; }
  .hero-inner {
    display: grid;
    grid-template-columns: 1fr minmax(300px, 380px);
    align-items: center;
    gap: 56px;
  }
  /* 高度驱动而不是宽度驱动：1366×768 这类"宽而矮"的屏上，
     9:19.5 的手机截图才不会把首屏顶下去。 */
  .device {
    width: auto;
    height: min(700px, calc(100vh - 190px));
    justify-self: center;
  }
  .chip-a { left: -8px; }
  .chip-b { right: -12px; }
  .chip-c { left: -16px; bottom: 12%; }

  .section-head { margin-bottom: 56px; }
  .h2 { font-size: clamp(38px, 4.4vw, 52px); }

  /* 价值区：真机截图 + 数据并排 */
  .wallet {
    grid-template-columns: auto 1fr;
    gap: 48px;
    padding: 34px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, #fff 0%, var(--brand-mist) 100%);
    box-shadow: var(--shadow-md);
  }
  .wallet-body { text-align: left; }
  .wallet-big { justify-content: flex-start; }
  .wallet-stats { grid-template-columns: repeat(3, 1fr); }

  .steps { grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .step-visual { flex-direction: column; align-items: flex-start; }
  .step-foot { width: auto; }
  .step-shot, .step-shot img { width: 100%; }

  .cards { grid-template-columns: repeat(4, 1fr); }
  .gallery { grid-template-columns: repeat(4, 1fr); gap: 28px; }
  .shot-frame img { width: 100%; }

  .tutorial { gap: 64px; }
  .tut { grid-template-columns: 1fr 260px; align-items: center; gap: 48px; }
  .tut:nth-child(even) .tut-text { order: 2; }
  .tut:nth-child(even) .tut-shot { order: 1; }
  .tut-shot img { width: 240px; }

  .timeline { max-width: 620px; margin-inline: auto; }
  .tl { grid-template-columns: 90px 1fr; }

  .footer-inner { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-meta { grid-column: 1 / -1; }
}

/* =============================================================== 1200 */
@media (min-width: 1200px) {
  .hero-inner { gap: 72px; }
  .device { height: min(760px, calc(100vh - 200px)); }
  .gallery { gap: 32px; }
  .tut { grid-template-columns: 1fr 280px; gap: 64px; }
}

/* ================================================= 尊重减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .has-js .reveal { opacity: 1; transform: none; }
  .float-chip, .btn-primary { animation: none; }
}