/* =========================================================
   星火策略 · 落地页样式 v2
   ---------------------------------------------------------
   设计语言：
   - 深暖渐变画布贯穿全站，避免黑白大色块割裂
   - 深色只作为高信任金融材质，浅色只作为信息承载卡片
   - 橙色严格用于转化、关键数字与轻量导视
   - Hero 独占首屏，二维码独立展示，不挤压交易仪表盘
   ========================================================= */

:root {
  /* 品牌色 */
  --brand: #ff7d07;
  --brand-hover: #ff6f08;
  --brand-deep: #e85d00;
  --brand-light: #ffa63f;
  --brand-glow: rgba(255, 125, 7, 0.45);
  --brand-soft: #fff4e6;
  --accent-gold: #ffd28a;

  /* 中性色 */
  --ink-900: #0a0e15;
  --ink-800: #131822;
  --ink-700: #1c2330;
  --ink-600: #2a3340;
  --ink-500: #5a6371;
  --ink-400: #8a93a0;
  --ink-300: #c4cad3;
  --ink-200: #e6e9ee;
  --ink-100: #f3f5f8;
  --ink-50: #fafbfc;

  /* 语义色 */
  --bg-page: #f5efe7;
  --bg-soft: rgba(255, 248, 239, 0.78);
  --bg-card: rgba(255, 255, 255, 0.82);
  --bg-dark: var(--ink-900);
  --bg-dark-2: #111722;
  --surface-warm: rgba(255, 250, 243, 0.9);
  --surface-glass: rgba(255, 255, 255, 0.74);
  --surface-dark: rgba(14, 19, 28, 0.92);
  --text: var(--ink-900);
  --text-soft: var(--ink-500);
  --text-on-dark: #ffffff;
  --text-on-dark-soft: rgba(255, 255, 255, 0.66);
  --border: rgba(85, 58, 34, 0.1);
  --border-dark: rgba(255, 255, 255, 0.08);
  --success: #16a34a;
  --warn: #b45309;

  /* 尺寸 */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  /* 阴影（克制） */
  --shadow-1: 0 1px 2px rgba(49, 33, 18, 0.04), 0 10px 28px rgba(49, 33, 18, 0.06);
  --shadow-2: 0 18px 46px rgba(49, 33, 18, 0.1);
  --shadow-glow: 0 10px 32px rgba(255, 125, 7, 0.28);

  /* 布局 */
  --maxw: 1180px;
  --pad-x: 20px;
  --header-h: 60px;
  --sticky-h: 64px;
  --tap: 44px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 92% 0%, rgba(255, 125, 7, 0.12), transparent 62%),
    radial-gradient(680px 420px at 8% 22%, rgba(255, 210, 138, 0.24), transparent 65%),
    linear-gradient(180deg, #fff8ef 0%, #f8efe4 56%, #f7efe5 100%);
  color: var(--text);
  font-family:
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: calc(var(--sticky-h) + env(safe-area-inset-bottom, 0px));
}

@media (min-width: 900px) {
  body {
    padding-bottom: 0;
  }
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

[id] {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

/* 等宽数字（让 5×/8×/10× 与价格更稳） */
.num,
.cd-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  letter-spacing: -0.01em;
}

/* ---------------- 跳过链接 ---------------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: -9999px;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  padding: 8px 12px;
  background: var(--ink-900);
  color: #fff;
  z-index: 1000;
  border-radius: 6px;
}

/* ---------------- 容器 / 通用 ---------------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section {
  position: relative;
  padding: 64px 0;
  background: transparent;
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 42%),
    radial-gradient(520px 240px at 85% 8%, rgba(255, 125, 7, 0.07), transparent 65%);
  opacity: 0.65;
}

.section > .wrap {
  position: relative;
  z-index: 1;
}

@media (max-width: 720px) {
  .section {
    padding: 48px 0;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.h2 {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--text);
}
.h2-sub {
  font-size: 15px;
  color: var(--text-soft);
  margin: 0 0 36px;
  max-width: 60ch;
}

.kw {
  color: var(--brand);
  font-weight: 700;
}

/* ---------------- 顶栏 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 250, 243, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.25s ease, border-color 0.25s ease;
}
.site-header.is-light {
  background: rgba(255, 250, 243, 0.9);
  border-bottom-color: var(--border);
}

.site-header.is-light .brand,
.site-header.is-light .nav a,
.site-header.is-light .header-mini {
  color: var(--text);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.02em;
}
.brand-mark {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  border-radius: 8px;
}
.brand-mark img {
  width: 22px;
  height: 22px;
}

.nav {
  display: none;
  gap: 28px;
  align-items: center;
}
.nav a {
  color: var(--text-soft);
  font-size: 14px;
  transition: color 0.15s ease;
}
.nav a:hover {
  color: var(--text);
}
@media (min-width: 820px) {
  .nav {
    display: inline-flex;
  }
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.header-mini {
  display: none;
  font-size: 13px;
  color: var(--text-soft);
  margin-right: 4px;
}
@media (min-width: 720px) {
  .header-mini {
    display: inline;
  }
}

/* ---------------- 按钮 ---------------- */
.btn {
  --btn-bg: var(--brand);
  --btn-color: #fff;
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--tap);
  padding: 0 18px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-color);
  border: 1px solid var(--btn-border);
  transition:
    transform 0.12s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease;
  white-space: nowrap;
  cursor: pointer;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(0);
}
.btn:focus-visible {
  outline: 3px solid rgba(255, 125, 7, 0.4);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--brand);
  box-shadow: 0 8px 20px rgba(255, 125, 7, 0.28);
}
.btn-primary:hover {
  background: var(--brand-hover);
  box-shadow: 0 10px 28px rgba(255, 125, 7, 0.36);
}

.btn-ghost-dark {
  --btn-bg: rgba(255, 255, 255, 0.48);
  --btn-color: var(--text);
  --btn-border: rgba(85, 58, 34, 0.16);
}
.btn-ghost-dark:hover {
  --btn-bg: rgba(255, 255, 255, 0.82);
  --btn-border: rgba(255, 125, 7, 0.35);
}

.theme-toggle {
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(85, 58, 34, 0.14);
  background: rgba(255, 255, 255, 0.5);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 700;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
  border-color: rgba(255, 125, 7, 0.3);
}

.btn-ghost-light {
  --btn-bg: #fff;
  --btn-color: var(--text);
  --btn-border: var(--border);
  box-shadow: var(--shadow-1);
}
.btn-ghost-light:hover {
  --btn-border: rgba(15, 20, 30, 0.18);
}

.btn-link {
  --btn-bg: transparent;
  --btn-color: var(--brand);
  --btn-border: transparent;
  padding: 0 4px;
  min-height: 0;
}
.btn-link:hover {
  color: var(--brand-hover);
  text-decoration: underline;
}

.btn-sm {
  min-height: 38px;
  padding: 0 14px;
  font-size: 13.5px;
}

.btn-lg {
  min-height: 52px;
  padding: 0 26px;
  font-size: 15.5px;
}

.btn-block {
  width: 100%;
}

/* ---------------- HERO ---------------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 100svh;
  margin-top: calc(var(--header-h) * -1);
  padding-top: var(--header-h);
  background:
    radial-gradient(760px 520px at 84% 8%, rgba(255, 125, 7, 0.18), transparent 64%),
    radial-gradient(620px 420px at 18% 82%, rgba(255, 210, 138, 0.32), transparent 68%),
    linear-gradient(145deg, #fffaf3 0%, #fff3e3 52%, #f6e5d2 100%);
  color: var(--text);
  isolation: isolate;
  display: flex;
  align-items: stretch;
}

/* 背景：极暗底色 + 微弱网格 + 右上角橙色光晕 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.5), transparent 34%),
    radial-gradient(54% 62% at 92% 28%, rgba(255, 125, 7, 0.1), transparent 68%);
  z-index: -2;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(130, 83, 32, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 80%);
  z-index: -1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  min-height: calc(100svh - var(--header-h));
  padding: clamp(26px, 6svh, 64px) 0 clamp(22px, 5svh, 52px);
  align-items: center;
  padding-left: clamp(20px, 3vw, 32px);
  padding-right: clamp(20px, 3vw, 32px);
}
@media (min-width: 820px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
    gap: 42px;
    padding: 56px 0 64px;
  }
}

@media (min-width: 1180px) {
  .hero-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 36px;
  }
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-left: 18px;
}

@media (min-width: 1180px) {
  .hero-copy {
    padding-left: 0;
  }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 8px;
  border: 1px solid rgba(255, 125, 7, 0.4);
  background: rgba(255, 125, 7, 0.08);
  color: var(--brand-light);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}
.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(255, 125, 7, 0.18);
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 5.1vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 800;
}
.hero h1 .kw {
  color: transparent;
  background: linear-gradient(120deg, #ffd28a 0%, #ffa63f 45%, #ff7d07 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-subline {
  display: inline-block;
  font-size: 0.78em;
  line-height: 1.12;
  white-space: nowrap;
  letter-spacing: -0.035em;
}

.hero-lede {
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.7;
  color: var(--text-soft);
  margin: 0 0 28px;
  max-width: 540px;
}

.hero-lede strong {
  color: var(--brand-deep);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  align-items: stretch;
}

.download-duo {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.download-duo .btn-platform {
  flex: 1 1 128px;
  min-width: 0;
}

.hero-download-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(255, 245, 232, 0.72));
  border: 1px solid rgba(255, 125, 7, 0.16);
  box-shadow: 0 12px 30px rgba(49, 33, 18, 0.08);
}

.hero-download-copy {
  min-width: 86px;
  line-height: 1.28;
}

.hero-download-copy strong {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 900;
}

.hero-download-copy span {
  display: block;
  margin-top: 2px;
  color: var(--text-soft);
  font-size: 11.5px;
  white-space: nowrap;
}

.hero-download-card .download-duo {
  flex-wrap: nowrap;
  gap: 8px;
}

.hero-download-card .btn-platform {
  flex-basis: auto;
  min-height: 44px;
  padding: 0 16px;
  border-color: rgba(255, 125, 7, 0.2);
  background: rgba(255, 255, 255, 0.78);
  font-size: 13.5px;
}

.hero-download-card .btn-platform:hover {
  background: #fff;
  border-color: rgba(255, 125, 7, 0.42);
  color: var(--brand-deep);
}

.btn-platform-suggest {
  border-color: rgba(255, 125, 7, 0.45);
  box-shadow: 0 0 0 1px rgba(255, 125, 7, 0.12);
}

.download-duo-qr {
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: nowrap;
}

.download-duo-qr .btn-platform {
  flex: 1;
  min-height: 36px;
  padding: 0 10px;
  font-size: 12.5px;
  border-color: rgba(255, 125, 7, 0.18);
  background: rgba(255, 255, 255, 0.78);
}

.download-duo-qr .btn-platform:hover {
  border-color: rgba(255, 125, 7, 0.4);
  color: var(--brand-deep);
}

.download-duo-stack {
  display: grid;
  gap: 10px;
  width: 100%;
  margin-top: 4px;
}

.download-duo-compact {
  flex: 1.05;
  min-width: 0;
  gap: 8px;
}

.download-duo-compact .btn {
  flex: 1;
  min-width: 0;
  padding: 0 10px;
  font-size: 13px;
}

.download-segment {
  flex: 1;
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255, 247, 237, 0.94);
  border: 1px solid rgba(255, 125, 7, 0.18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.download-segment a {
  min-height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.download-segment a + a {
  border-left: 1px solid rgba(85, 58, 34, 0.08);
}

.download-segment a:hover,
.download-segment a.btn-platform-suggest {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 5px 14px rgba(49, 33, 18, 0.08);
}

@media (max-width: 520px) {
  .hero-actions {
    flex-wrap: wrap;
    gap: 10px;
  }

  .hero-actions > .btn-primary {
    flex: 1 1 100%;
    width: 100%;
    min-height: 46px;
    padding: 0 15px;
    font-size: 14px;
  }

  .hero-actions .download-duo {
    flex: 1 1 100%;
    width: 100%;
  }

  .hero-download-card {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 9px;
    padding: 10px;
  }

  .hero-download-copy {
    display: none;
  }

  .hero-actions .download-duo .btn-platform {
    flex: 1;
    min-height: 46px;
    padding: 0 12px;
    font-size: 14px;
  }
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 28px;
  color: var(--text-soft);
  font-size: 13.5px;
}
.hero-meta li {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-meta li::before {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ff7d07 0%, #ff7d07 40%, transparent 42%);
  flex: 0 0 16px;
}
.hero-meta ul {
  margin: 0;
  padding: 0;
  display: contents;
}

/* Hero 右侧视觉：交易卡片 + 独立二维码 */
.hero-visual {
  position: relative;
  display: grid;
  gap: 18px;
  align-items: center;
}

@media (min-width: 1180px) {
  .hero-visual {
    grid-template-columns: minmax(0, 1fr) 176px;
    gap: 16px;
  }
}

.hero-card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 248, 237, 0.8) 100%);
  border: 1px solid rgba(85, 58, 34, 0.12);
  border-radius: 24px;
  padding: clamp(16px, 2.4vw, 26px);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-2);
}
.hero-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.hero-card-head .lever-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-light);
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 125, 7, 0.12);
  border: 1px solid rgba(255, 125, 7, 0.32);
}
.hero-card-title {
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
}
.hero-card-sub {
  font-size: 12.5px;
  color: var(--text-soft);
  margin-top: 2px;
}
.hero-card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.hero-stat {
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(85, 58, 34, 0.1);
  border-radius: 12px;
  padding: 12px 14px;
}
.hero-stat-label {
  font-size: 11.5px;
  color: var(--text-soft);
  letter-spacing: 0.04em;
}
.hero-stat-value {
  font-size: 18px;
  font-weight: 800;
  margin-top: 4px;
  color: var(--text);
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.hero-stat-value.up {
  color: #2dd4bf;
}
.hero-stat-value.brand {
  color: var(--brand-light);
}

@media (min-width: 820px) and (max-width: 1080px) {
  .hero-stat {
    padding: 11px 10px;
  }

  .hero-stat-value {
    font-size: 16px;
  }
}

@media (max-width: 520px) {
  .hero {
    min-height: 100svh;
  }

  .hero-grid {
    gap: 18px;
    padding-top: clamp(14px, 3svh, 24px);
    padding-bottom: clamp(16px, 3svh, 24px);
  }

  .hero-copy {
    padding-left: 0;
  }

  .hero-tag {
    margin-bottom: 14px;
    font-size: 11.5px;
  }

  .hero h1 {
    font-size: clamp(31px, 9vw, 38px);
    margin-bottom: 12px;
  }

  .hero-lede {
    font-size: 14px;
    line-height: 1.58;
    margin-bottom: 18px;
  }

  .hero-actions {
    margin-bottom: 18px;
  }

  .hero-meta {
    gap: 8px 16px;
    font-size: 12.5px;
  }

  .hero-card {
    border-radius: 18px;
    padding: 14px;
  }

  .hero-card-head {
    margin-bottom: 12px;
  }

  .hero-card-title {
    font-size: 13.5px;
  }

  .hero-card-sub {
    font-size: 11.5px;
  }

  .hero-card-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 10px;
  }

  .hero-stat {
    padding: 8px 7px;
    border-radius: 10px;
  }

  .hero-stat-label {
    font-size: 10px;
  }

  .hero-stat-value {
    font-size: 14px;
  }

  .spark {
    height: 88px;
  }

  .spark .axis {
    display: none;
  }

  .hero-card-foot {
    margin-top: 10px;
  }

  .chip {
    font-size: 10.5px;
    padding: 3px 8px;
  }
}

/* K 线图（CSS 绘制） */
.spark {
  position: relative;
  height: 140px;
  background: linear-gradient(180deg, rgba(255, 125, 7, 0.09) 0%, rgba(255, 125, 7, 0) 80%);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(85, 58, 34, 0.08);
}
.spark svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.spark .axis {
  position: absolute;
  inset: auto 12px 12px 12px;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: rgba(90, 63, 40, 0.42);
  letter-spacing: 0.06em;
}

.hero-card-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.chip {
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
  color: var(--text-soft);
  border: 1px solid rgba(85, 58, 34, 0.1);
}

.hero-qr-panel {
  display: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 248, 237, 0.96));
  color: var(--text);
  border-radius: 22px;
  padding: 16px;
  box-shadow: 0 24px 62px rgba(0, 0, 0, 0.26);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
}

.hero-qr-panel .qr-panel-kicker {
  display: inline-flex;
  padding: 4px 9px;
  margin-bottom: 8px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-size: 11px;
  font-weight: 800;
}

.hero-qr-panel strong {
  display: block;
  font-size: 15px;
  line-height: 1.35;
  margin-bottom: 12px;
}

.hero-qr-panel img {
  width: 144px;
  height: 144px;
  margin: 0 auto 12px;
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px var(--border);
}

.hero-qr-panel p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-soft);
}

@media (min-width: 1180px) {
  .hero-qr-panel {
    display: block;
  }
}

/* ---------------- 数据条 ---------------- */
.metrics {
  background:
    linear-gradient(180deg, rgba(255, 250, 243, 0.94), rgba(255, 244, 230, 0.9));
  color: var(--text);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 28px 70px rgba(49, 33, 18, 0.1);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}
@media (min-width: 720px) {
  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.metric {
  padding: 24px 20px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric:nth-child(2n) {
  border-right: 0;
}
@media (min-width: 720px) {
  .metric:nth-child(2n) {
    border-right: 1px solid var(--border);
  }
  .metric:nth-child(4n) {
    border-right: 0;
  }
  .metric:nth-child(n + 3) {
    border-bottom: 0;
  }
}
.metric:nth-last-child(-n + 2) {
  border-bottom: 0;
}
.metric-num {
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}
.metric-num .unit {
  font-size: 0.55em;
  color: var(--text-soft);
  margin-left: 6px;
  font-weight: 700;
}
.metric-num.brand {
  color: var(--brand-light);
}
.metric-label {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-soft);
}

/* ---------------- 限时权益 ---------------- */
.promo {
  background: transparent;
}
.promo-card {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
  box-shadow: var(--shadow-2);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px);
}
.promo-card::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(255, 125, 7, 0.12), transparent 60%);
  pointer-events: none;
}
@media (min-width: 820px) {
  .promo-card {
    grid-template-columns: 1.1fr 0.9fr;
    padding: 36px;
    gap: 40px;
  }
}

.promo-amount {
  font-size: clamp(48px, 9vw, 84px);
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(120deg, #ff8c0f 0%, #ff6f08 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}
.promo-amount .yuan {
  font-size: 0.4em;
  margin-right: 8px;
  vertical-align: 0.6em;
  color: var(--brand-deep);
  -webkit-text-fill-color: var(--brand-deep);
}
.promo-amount-sub {
  color: var(--text-soft);
  font-size: 14px;
  margin-bottom: 18px;
}
.promo-list {
  display: grid;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}
.promo-list li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.55;
  align-items: flex-start;
}
.promo-list .check {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff8c0f, #ff6f08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 11px;
  line-height: 1;
  font-weight: 700;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}
.cd-cell {
  position: relative;
  overflow: hidden;
  perspective: 360px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(255, 238, 216, 0.82)),
    radial-gradient(circle at 30% 20%, rgba(255, 166, 63, 0.2), transparent 58%);
  color: var(--text);
  border: 1px solid rgba(255, 125, 7, 0.14);
  border-radius: 14px;
  padding: 12px 6px;
  text-align: center;
  box-shadow: 0 10px 26px rgba(155, 88, 22, 0.08);
}
.cd-cell::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  top: 50%;
  height: 1px;
  background: rgba(123, 72, 20, 0.13);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.62);
}
.cd-cell .cd-num {
  position: relative;
  z-index: 1;
  font-size: 22px;
  font-weight: 900;
  transform-origin: 50% 100%;
  will-change: transform;
}
.cd-cell.is-flipping .cd-num {
  animation: flipClock 0.52s cubic-bezier(0.2, 0.75, 0.28, 1);
}
@keyframes flipClock {
  0% {
    transform: rotateX(0deg);
  }
  45% {
    transform: rotateX(-82deg);
  }
  100% {
    transform: rotateX(0deg);
  }
}
.cd-cell .cd-lbl {
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 2px;
  letter-spacing: 0.06em;
}

.promo-foot {
  font-size: 12.5px;
  color: var(--text-soft);
}

/* ---------------- 卖点卡片 ---------------- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.feature {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.feature:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 125, 7, 0.4);
  box-shadow: var(--shadow-2);
}
.feature-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff4e6 0%, #ffe1bf 100%);
  border-radius: 12px;
  margin-bottom: 16px;
  color: var(--brand-deep);
}
.feature-icon svg {
  width: 22px;
  height: 22px;
}
.feature h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.feature p {
  margin: 0;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

/* ---------------- 杠杆档位选择器 ---------------- */
.leverage {
  background: transparent;
  color: var(--text);
  position: relative;
  overflow: hidden;
}
.leverage::before {
  content: "";
  position: absolute;
  inset: -50% 40% auto -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(255, 125, 7, 0.12), transparent 62%);
  pointer-events: none;
}
.leverage .h2,
.leverage .h2-sub {
  color: var(--text);
}
.leverage .h2-sub {
  color: var(--text-soft);
}

.lev-tabs {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.lev-tab {
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-soft);
  transition: all 0.18s ease;
}
.lev-tab[aria-pressed="true"] {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 125, 7, 0.4);
}
.lev-tab:hover:not([aria-pressed="true"]) {
  color: var(--text);
}

.lev-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
  padding: clamp(24px, 4vw, 38px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(460px 260px at 100% 0%, rgba(255, 125, 7, 0.18), transparent 62%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(255, 245, 233, 0.82));
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 24px 70px rgba(49, 33, 18, 0.18);
}
@media (min-width: 820px) {
  .lev-panel {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}
.lev-headline {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  line-height: 1.15;
}
.lev-headline .x {
  color: var(--brand-light);
}
.lev-body {
  color: var(--text-soft);
  font-size: 15px;
  margin: 0 0 22px;
  line-height: 1.7;
}
.lev-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.lev-stat {
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--border);
}
.lev-stat dt {
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: 0.04em;
}
.lev-stat dd {
  margin: 4px 0 0;
  font-size: 18px;
  font-weight: 700;
}

/* ---------------- 信任 ---------------- */
.trust-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.trust {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.trust-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-700);
  margin-bottom: 12px;
}
.trust h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
}
.trust p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.65;
}

.risk-bar {
  margin-top: 28px;
  padding: 16px 18px;
  background: #fff8ec;
  border: 1px solid #f6d99a;
  border-left: 4px solid var(--brand-deep);
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: #7a4a08;
}
.risk-bar strong {
  color: #5a3306;
}

/* ---------------- 对比 ---------------- */
.compare-wrap {
  background:
    radial-gradient(600px 300px at 80% 0%, rgba(255, 125, 7, 0.16), transparent 60%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 243, 228, 0.84));
  color: var(--text);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}
.compare-grid {
  display: grid;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .compare-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.compare-col {
  padding: 28px 24px;
}
.compare-col.old {
  background: rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid var(--border);
}
@media (min-width: 720px) {
  .compare-col.old {
    border-bottom: 0;
    border-right: 1px solid var(--border);
  }
}
.compare-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 18px;
  justify-content: center;
  text-align: center;
}
.compare-head .label-old {
  color: var(--text-soft);
}
.compare-head .label-new {
  color: var(--brand-light);
}
.compare-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  max-width: 390px;
  margin-inline: auto;
}
.compare-list li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  justify-content: center;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text);
  text-align: center;
}
.compare-list.old li {
  color: var(--text-soft);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 255, 255, 0.18);
}
.compare-list .ico {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 1px;
}
.compare-list.old .ico {
  background: rgba(10, 14, 21, 0.06);
  color: var(--text-soft);
}
.compare-list.new .ico {
  background: var(--brand);
  color: #fff;
}

/* VS 标签 */
.vs-badge {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  color: var(--brand-deep);
  font-weight: 900;
  font-size: 14px;
  display: none;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.04em;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  border: 4px solid #fff7ed;
}
@media (min-width: 720px) {
  .vs-badge {
    display: inline-flex;
  }
}

/* ---------------- 用户证言 ---------------- */
.quotes {
  background: transparent;
}

.quote-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: -10px 0 26px;
}

.quote-tab {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.58);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 800;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.quote-tab[aria-pressed="true"] {
  background: var(--brand);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 26px rgba(255, 125, 7, 0.24);
}

.quote-carousel {
  position: relative;
}

.quote-panel {
  display: none;
}

.quote-panel.is-active {
  display: block;
  animation: quoteFade 0.28s ease both;
}

@keyframes quoteFade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quote-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .quote-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.quote {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.quote-stars {
  color: var(--brand);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.quote-body {
  flex: 1;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
  margin: 0 0 18px;
}
.quote-body em {
  font-style: normal;
  color: var(--brand-deep);
  font-weight: 700;
}
.quote-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.avatar,
.avatar-photo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ffd28a, #ff8c0f);
  color: #5a3306;
  font-weight: 800;
  font-size: 13.5px;
  flex-shrink: 0;
}

.avatar-photo {
  width: 58px;
  height: 58px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: #f4e6d2;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.78), 0 8px 18px rgba(72, 42, 15, 0.1);
}

.avatar-photo-1 { background-image: url("../assets/avatar-2.jpg"); }
.avatar-photo-2 { background-image: url("../assets/avatar-4.jpg"); background-size: 136%; background-position: 100% 50%; }
.avatar-photo-3 { background-image: url("../assets/avatar-1.jpg"); background-size: 136%; background-position: 100% 50%; }
.avatar-photo-4 { background-image: url("../assets/avatar-3.jpg"); background-size: 136%; background-position: 0% 50%; }
.avatar-photo-5 { background-image: url("../assets/avatar-5.jpg"); }
.avatar-photo-6 { background-image: url("../assets/avatar-6.jpg"); background-size: 136%; background-position: 0% 50%; }
.avatar-photo-7 { background-image: url("../assets/avatar-8.jpg"); }
.avatar-photo-8 { background-image: url("../assets/avatar-7.jpg"); background-size: 136%; background-position: 100% 50%; }
.avatar-photo-9 { background-image: url("../assets/avatar-2.jpg"); }
.quote-meta {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.4;
}
.quote-meta strong {
  display: block;
  color: var(--text);
  font-size: 13.5px;
}

/* ---------------- 权益清单 ---------------- */
.rewards {
  display: grid;
  gap: 12px;
  counter-reset: rw;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 720px) {
  .rewards {
    grid-template-columns: repeat(2, 1fr);
  }
}
.reward {
  counter-increment: rw;
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px 20px 64px;
  position: relative;
}
.reward::before {
  content: counter(rw, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 22px;
  font-size: 22px;
  font-weight: 800;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}
.reward h3 {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 700;
}
.reward p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-soft);
  line-height: 1.6;
}

/* ---------------- 行动召唤 ---------------- */
.final {
  background: transparent;
  color: var(--text);
  position: relative;
  overflow: hidden;
}
.final .h2,
.final .h2-sub {
  color: var(--text);
}
.final .h2-sub {
  color: var(--text-soft);
}
.final-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
  padding: clamp(28px, 5vw, 48px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(560px 320px at 82% 0%, rgba(255, 125, 7, 0.24), transparent 60%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 241, 223, 0.86));
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 26px 80px rgba(49, 33, 18, 0.2);
}

.final-grid .h2,
.final-grid .h2-sub {
  color: var(--text);
}

.final-grid .h2-sub {
  color: var(--text-soft);
}
@media (min-width: 820px) {
  .final-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
  }
}
.final-steps {
  list-style: none;
  margin: 22px 0 28px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.final-steps li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: center;
  font-size: 14.5px;
  color: var(--text);
}
.final-steps li span.n {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 125, 7, 0.15);
  border: 1px solid rgba(255, 125, 7, 0.4);
  color: var(--brand-light);
  font-weight: 800;
  font-size: 14px;
}

.final-qr {
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  border-radius: var(--radius-xl);
  padding: 22px;
  text-align: center;
  max-width: 280px;
  margin: 0 auto;
}
.final-qr img {
  width: 180px;
  height: 180px;
  margin: 8px auto 12px;
  border-radius: 8px;
}
.final-qr strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}
.final-qr small {
  display: block;
  font-size: 12.5px;
  color: var(--text-soft);
  margin-bottom: 4px;
}

/* ---------------- FAQ ---------------- */
.faqs {
  display: grid;
  gap: 10px;
  max-width: 820px;
  margin: 0 auto;
}
.faq {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 52px 18px 20px;
  font-weight: 600;
  font-size: 15px;
  position: relative;
  display: flex;
  align-items: center;
  user-select: none;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--ink-500);
  border-bottom: 2px solid var(--ink-500);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s ease;
}
.faq[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}
.faq[open] summary {
  color: var(--brand-deep);
}
.faq-body {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ---------------- 页脚 ---------------- */
.site-footer {
  background: #fff7ed;
  color: var(--text-soft);
  padding: 36px 0 28px;
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}
.footer-grid h4 {
  color: var(--text);
  font-size: 14px;
  margin: 0 0 10px;
}
.footer-grid a {
  color: var(--text-soft);
  display: inline-block;
  line-height: 1.9;
}
.footer-grid a:hover {
  color: var(--brand-light);
}
.footer-base {
  border-top: 1px solid var(--border);
  padding-top: 18px;
  color: var(--text-soft);
  font-size: 12.5px;
  line-height: 1.7;
}

/* ---------------- 移动端 sticky CTA ---------------- */
.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: center;
  box-shadow: 0 -12px 32px rgba(15, 20, 30, 0.06);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.sticky-cta.show {
  transform: translateY(0);
}
.sticky-cta .sticky-claim {
  flex: 1.2;
  min-width: 0;
}

.sticky-cta .download-duo-compact {
  flex: 1;
}
@media (min-width: 900px) {
  .sticky-cta {
    display: none;
  }
}

/* 悬浮咨询 */
.fab-consult {
  position: fixed;
  right: 14px;
  bottom: calc(var(--sticky-h) + 16px + env(safe-area-inset-bottom, 0px));
  z-index: 55;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff;
  color: var(--brand-deep);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  line-height: 1.1;
  box-shadow: 0 10px 24px rgba(15, 20, 30, 0.15);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.fab-consult:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(15, 20, 30, 0.2);
}
.fab-consult svg {
  width: 18px;
  height: 18px;
  margin-bottom: 2px;
}
@media (min-width: 900px) {
  .fab-consult {
    bottom: 28px;
  }
}

/* ---------------- 杂项 ---------------- */
.text-center {
  text-align: center;
}
.section-header {
  margin-bottom: 36px;
}
.section-header.center {
  text-align: center;
}
.section-header.center .h2-sub {
  margin-left: auto;
  margin-right: auto;
}
.divider {
  height: 1px;
  background: var(--border);
  border: 0;
  margin: 0;
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ---------------- 主题与移动首屏重构 ---------------- */
@media (max-width: 720px) {
  .header-mini,
  .header-actions .btn-ghost-dark {
    display: none;
  }

  .theme-toggle {
    min-height: 34px;
    padding: 0 10px;
  }

  .hero {
    min-height: auto;
    display: block;
  }

  .hero-grid {
    display: block;
    min-height: auto;
    padding-top: 0;
    padding-bottom: 32px;
  }

  .hero-copy {
    min-height: calc(100svh - var(--header-h));
    padding: clamp(42px, 9svh, 76px) 0 clamp(56px, 11svh, 92px);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero-tag {
    margin-bottom: clamp(24px, 5svh, 42px);
    padding: 8px 15px 8px 10px;
    font-size: 12px;
  }

  .hero h1 {
    font-size: clamp(42px, 12vw, 56px);
    line-height: 1.03;
    margin-bottom: clamp(24px, 5svh, 40px);
  }

  .hero-lede {
    max-width: 28em;
    font-size: 16px;
    line-height: 1.82;
    margin-bottom: clamp(28px, 6svh, 44px);
  }

  .hero-actions {
    margin-bottom: clamp(28px, 6svh, 44px);
  }

  .hero-actions .btn {
    min-height: 52px;
  }

  .hero-meta {
    gap: 14px 22px;
    font-size: 13px;
  }

  .hero-visual {
    margin-top: 20px;
  }
}

body.theme-dark {
  background:
    radial-gradient(900px 520px at 92% 0%, rgba(255, 125, 7, 0.18), transparent 62%),
    radial-gradient(680px 420px at 8% 22%, rgba(255, 210, 138, 0.1), transparent 65%),
    linear-gradient(180deg, #080c13 0%, #0e1520 55%, #111722 100%);
  color: #fff;
}

body.theme-dark .site-header {
  background: rgba(10, 14, 21, 0.62);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .brand,
body.theme-dark .nav a,
body.theme-dark .header-mini {
  color: rgba(255, 255, 255, 0.78);
}

body.theme-dark .nav a:hover,
body.theme-dark .brand {
  color: #fff;
}

body.theme-dark .theme-toggle,
body.theme-dark .btn-ghost-dark {
  --btn-bg: rgba(255, 255, 255, 0.06);
  --btn-color: #fff;
  --btn-border: rgba(255, 255, 255, 0.18);
  background: var(--btn-bg, rgba(255, 255, 255, 0.06));
  color: var(--btn-color, #fff);
  border-color: var(--btn-border, rgba(255, 255, 255, 0.18));
}

body.theme-dark .hero {
  background:
    radial-gradient(760px 520px at 84% 8%, rgba(255, 125, 7, 0.34), transparent 64%),
    radial-gradient(620px 420px at 18% 82%, rgba(255, 166, 63, 0.12), transparent 68%),
    linear-gradient(145deg, #070b12 0%, #0d1420 48%, #17100b 100%);
  color: #fff;
}

body.theme-dark .hero-lede,
body.theme-dark .hero-meta {
  color: rgba(255, 255, 255, 0.72);
}

body.theme-dark .hero-lede strong {
  color: #ffd28a;
}

body.theme-dark .hero-card,
body.theme-dark .lev-panel,
body.theme-dark .compare-wrap,
body.theme-dark .final-grid {
  background:
    radial-gradient(560px 320px at 82% 0%, rgba(255, 125, 7, 0.24), transparent 60%),
    linear-gradient(145deg, rgba(10, 14, 21, 0.96), rgba(22, 27, 37, 0.94));
  color: #fff;
  border-color: rgba(255, 255, 255, 0.1);
}

body.theme-dark .hero-card-title,
body.theme-dark .hero-stat-value,
body.theme-dark .lev-panel .h2,
body.theme-dark .final-grid .h2 {
  color: #fff;
}

body.theme-dark .hero-card-sub,
body.theme-dark .hero-stat-label,
body.theme-dark .lev-body,
body.theme-dark .lev-stat dt,
body.theme-dark .final-grid .h2-sub,
body.theme-dark .final-steps li {
  color: rgba(255, 255, 255, 0.68);
}

body.theme-dark .hero-stat,
body.theme-dark .lev-stat,
body.theme-dark .chip {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .metrics {
  background: linear-gradient(180deg, rgba(15, 22, 33, 0.96), rgba(20, 26, 36, 0.92));
  color: #fff;
  border-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .metric {
  border-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .metric-num {
  color: #fff;
}

body.theme-dark .metric-label,
body.theme-dark .metric-num .unit {
  color: rgba(255, 255, 255, 0.62);
}

body.theme-dark .compare-head .label-old,
body.theme-dark .compare-list.old li {
  color: rgba(255, 255, 255, 0.58);
}

body.theme-dark .compare-list li {
  color: rgba(255, 255, 255, 0.88);
}

body.theme-dark .site-footer {
  background: #0a0e15;
  color: rgba(255, 255, 255, 0.55);
}

body.theme-dark .footer-grid h4 {
  color: #fff;
}

body.theme-dark .footer-grid a,
body.theme-dark .footer-base {
  color: rgba(255, 255, 255, 0.55);
  border-color: rgba(255, 255, 255, 0.08);
}

/* ---------------- 独立规则 FAQ 页面 ---------------- */
.faq-page {
  background:
    radial-gradient(900px 520px at 92% 0%, rgba(255, 125, 7, 0.12), transparent 62%),
    linear-gradient(180deg, #fff8ef 0%, #f8efe4 100%);
}

.faq-hero {
  padding: 100px 0 34px;
}

.faq-hero-card {
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(620px 300px at 86% 0%, rgba(255, 125, 7, 0.18), transparent 62%),
    rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(14px);
}

.faq-hero-card h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.faq-hero-card p {
  max-width: 760px;
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.75;
}

.faq-quick-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.faq-quick-nav a {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

.faq-quick-nav a:hover {
  border-color: rgba(255, 125, 7, 0.35);
  color: var(--brand-deep);
}

/* FAQ 页：移动端吸附分类导航 */
.faq-mobile-nav {
  display: none;
}

@media (max-width: 979px) {
  .faq-mobile-nav {
    display: block;
    position: sticky;
    top: var(--header-h);
    z-index: 45;
    background: rgba(255, 250, 243, 0.94);
    backdrop-filter: saturate(140%) blur(12px);
    -webkit-backdrop-filter: saturate(140%) blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(49, 33, 18, 0.06);
  }

  .faq-mobile-nav-inner {
    display: flex;
    gap: 8px;
    padding: 10px 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .faq-mobile-nav-inner::-webkit-scrollbar {
    display: none;
  }

  .faq-mobile-nav a {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--border);
    color: var(--text-soft);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
    transition:
      background 0.18s ease,
      color 0.18s ease,
      border-color 0.18s ease,
      box-shadow 0.18s ease;
  }

  .faq-mobile-nav a.is-active,
  .faq-mobile-nav a[aria-current="true"] {
    background: var(--brand);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(255, 125, 7, 0.24);
  }

  .faq-hero .faq-quick-nav {
    display: none;
  }

  .faq-page .rule-card {
    scroll-margin-top: calc(var(--header-h) + var(--faq-mobile-nav-h, 52px) + 14px);
  }
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

@media (min-width: 980px) {
  .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: start;
  }
}

.faq-side {
  display: none;
}

@media (min-width: 980px) {
  .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    display: grid;
    gap: 10px;
    padding: 18px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-1);
  }
}

.faq-side strong {
  margin-bottom: 4px;
  color: var(--text);
}

.faq-side a {
  color: var(--text-soft);
  font-size: 13.5px;
  line-height: 1.45;
}

.faq-side a:hover {
  color: var(--brand-deep);
}

.faq-content {
  display: grid;
  gap: 16px;
}

.rule-card {
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1);
}

.rule-card h2 {
  margin: 0 0 16px;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
}

.rule-card h3 {
  margin: 20px 0 8px;
  font-size: 17px;
}

.rule-card p,
.rule-card li {
  color: var(--text-soft);
  line-height: 1.8;
}

.rule-card ul {
  margin: 0;
  padding-left: 1.25em;
}

.rule-note {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  background: #fff4e6;
  border: 1px solid #f4d09d;
  color: #7a4a08;
  font-size: 14px;
  line-height: 1.7;
}

body.theme-dark.faq-page {
  background:
    radial-gradient(900px 520px at 92% 0%, rgba(255, 125, 7, 0.16), transparent 62%),
    linear-gradient(180deg, #080c13 0%, #111722 100%);
}

body.theme-dark .faq-hero-card,
body.theme-dark .faq-side,
body.theme-dark .rule-card {
  background: rgba(18, 24, 34, 0.82);
  border-color: rgba(255, 255, 255, 0.1);
}

body.theme-dark .faq-hero-card h1,
body.theme-dark .rule-card h2,
body.theme-dark .rule-card h3,
body.theme-dark .faq-side strong {
  color: #fff;
}

body.theme-dark .faq-hero-card p,
body.theme-dark .rule-card p,
body.theme-dark .rule-card li,
body.theme-dark .faq-side a {
  color: rgba(255, 255, 255, 0.66);
}

body.theme-dark .faq-quick-nav a {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.12);
}

body.theme-dark .faq-mobile-nav {
  background: rgba(10, 14, 21, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .faq-mobile-nav a {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.72);
  border-color: rgba(255, 255, 255, 0.12);
}

body.theme-dark .faq-mobile-nav a.is-active,
body.theme-dark .faq-mobile-nav a[aria-current="true"] {
  color: #fff;
}