/* ==========================================================
   首页 · 小亿选保险
   依赖 style.css 的 :root 变量与 .btn / .brand 基础样式
   ========================================================== */

.landing {
  letter-spacing: 0.005em;
}

/* 锚点跳转时为吸顶导航让位。
   正常路径由 landing.js 精确计算（导航高度 + 20px 呼吸），
   这里的 scroll-padding 只作为 JS 不可用时的降级。 */
html {
  scroll-padding-top: 88px;
}

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  padding-top: env(safe-area-inset-top);
  background: rgba(251, 250, 247, 0);
  transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  background: rgba(251, 250, 247, 0.9);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 0 rgba(58, 42, 26, 0.03);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  letter-spacing: 0.01em;
  padding: 6px 0;
  position: relative;
  transition: color 0.18s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--brand);
  transition: right 0.24s cubic-bezier(0.22, 0.68, 0.32, 1);
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-links a:hover::after {
  right: 0;
}

.nav-cta {
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 999px;
}

/* ---------- 版心 ---------- */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 84px 32px;
}

/* ---------- HERO ---------- */
/* 注意：.hero 这个类名在 style.css 里属于结果页，这里必须显式重置，
   否则首页会继承结果页的白卡背景、边框与 ::before 色条。 */
.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 56px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 32px 84px;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.hero::before,
.hero::after {
  display: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 32px;
  font-size: 12.5px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  padding: 6px 14px 6px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 254, 252, 0.7);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(236, 87, 51, 0.14);
}

.display {
  margin: 26px 0 0;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1.16;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--ink);
}

.display em {
  font-style: normal;
  color: var(--brand);
  background: linear-gradient(180deg, transparent 56%, rgba(236, 87, 51, 0.16) 56%);
  padding: 0 0.06em;
}

.lede {
  margin: 24px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 30em;
}

.lede strong {
  color: var(--ink);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.stats {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
}

.stats li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-right: 26px;
  margin-right: 26px;
  border-right: 1px solid var(--line-strong);
}

.stats li:last-child {
  border-right: 0;
  padding-right: 0;
  margin-right: 0;
}

.stats b {
  font-family: var(--font-num);
  font-size: 27px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stats span {
  font-size: 12.5px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* ---------- HERO 视觉：从两个里选一个 ---------- */
.hero-visual {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, #fde4d9 0%, rgba(251, 250, 247, 0) 68%);
  z-index: 0;
}

.ghost-card {
  position: absolute;
  z-index: 1;
  width: 212px;
  padding: 22px;
  border-radius: 18px;
  background: #fffdfb;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px -34px rgba(58, 42, 26, 0.5);
  transform: translate(-152px, -126px) rotate(-8deg);
  opacity: 0.8;
}

.ghost-tag {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  margin-bottom: 14px;
}

.ghost-line {
  display: block;
  height: 7px;
  border-radius: 4px;
  background: linear-gradient(90deg, #ece5d9, #f5f0e7);
  margin-bottom: 9px;
}

.ghost-line.w60 {
  width: 60%;
}
.ghost-line.w85 {
  width: 85%;
}
.ghost-line.w45 {
  width: 45%;
}

.preview-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 348px;
  padding: 24px 24px 0;
  border-radius: 20px;
  background: #fffdfb;
  border: 1px solid var(--line);
  box-shadow: 0 2px 4px rgba(58, 42, 26, 0.04), 0 40px 70px -46px rgba(58, 42, 26, 0.55);
  transform: translate(54px, 16px) rotate(1.6deg);
}

.pc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.pc-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: #44546a;
  background: #eef0f4;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.01em;
}

.pc-badge i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #44546a;
}

.pc-code {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--ink-3);
}

.pc-label {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.pc-title {
  margin: 0;
  font-size: 27px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.pc-sub {
  margin: 8px 0 18px;
  font-size: 13px;
  color: var(--ink-2);
}

.pc-reasons {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.pc-reasons li {
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.pc-reasons span {
  display: block;
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.5;
}

.pc-reasons em {
  display: block;
  font-style: normal;
  font-size: 11.5px;
  color: var(--ink-3);
  line-height: 1.55;
  margin-top: 2px;
}

.pc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 -24px;
  padding: 15px 24px;
  background: var(--bg);
  border-top: 1px solid var(--line);
  border-radius: 0 0 20px 20px;
}

.pc-price {
  font-size: 12.5px;
  color: var(--ink-2);
}

.pc-arrow {
  font-size: 15px;
  color: var(--brand);
}

/* ---------- 区块标题 ---------- */
.section-head {
  max-width: 660px;
  margin-bottom: 52px;
}

.idx {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--brand);
  margin-bottom: 14px;
}

.section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.section-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 信任 ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.trust-card {
  padding: 26px 22px;
  border-radius: 18px;
  background: #fffdfb;
  border: 1px solid var(--line);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.trust-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 40px -34px rgba(58, 42, 26, 0.6);
}

.tc-no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--brand);
}

.trust-card h3 {
  margin: 14px 0 9px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.trust-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 流程 ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.flow-step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px 28px 34px 0;
  border-right: 1px solid var(--line);
}

.flow-step:last-child {
  border-right: 0;
  padding-right: 0;
}

.flow-step + .flow-step {
  padding-left: 28px;
}

.fs-no {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}

.fs-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.fs-body h3 {
  margin: 8px 0 10px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.fs-body p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.fs-time {
  align-self: flex-start;
  margin-top: auto;
  display: inline-block;
  font-size: 12px;
  color: var(--brand-deep);
  background: var(--brand-soft);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* ---------- 产品 ---------- */
.prod-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.prod {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 28px;
  border-radius: 20px;
  background: #fffdfb;
  border: 1px solid var(--line);
  overflow: hidden;
}

.prod::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
}

.prod-a::before {
  background: linear-gradient(90deg, #44546a, #8695ad);
}

.prod-b::before {
  background: linear-gradient(90deg, #0f766e, #58b5a8);
}

.prod-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.prod-code {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-family: var(--font-num);
  font-size: 13px;
  color: #fff;
}

.prod-a .prod-code {
  background: #44546a;
}

.prod-b .prod-code {
  background: #0f766e;
}

.prod-kind {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.prod h3 {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.015em;
}

.prod-ver {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--ink-3);
  margin-top: 4px;
  letter-spacing: 0.01em;
}

.prod-line {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.prod-points {
  flex: 1 1 auto;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.prod-points li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-2);
  margin-bottom: 7px;
}

.prod-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-strong);
}

.prod-a .prod-points li::before {
  background: #b3bccb;
}

.prod-b .prod-points li::before {
  background: #93c9c0;
}

.prod-foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.prod-for {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.7;
}

/* 差异表 */
.diff {
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: #fffdfb;
}

.diff-row {
  display: grid;
  grid-template-columns: 150px 1fr 1fr;
  gap: 20px;
  padding: 15px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.65;
}

.diff-row:last-child {
  border-bottom: 0;
}

.diff-row span:first-child {
  color: var(--ink-3);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.diff-row span:nth-child(2),
.diff-row span:nth-child(3) {
  color: var(--ink);
}

.diff-head {
  background: var(--bg);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  padding-top: 12px;
  padding-bottom: 12px;
}

.diff-head span {
  color: var(--ink-3) !important;
  font-size: 12px !important;
}

.diff-note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--ink-3);
}

/* ---------- 路线图 ---------- */
.road-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.road-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 22px;
  border-radius: 18px;
  background: #fffdfb;
  border: 1px solid var(--line);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.road-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 40px -34px rgba(52, 44, 36, 0.6);
}

.rd-no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--brand);
}

.road-card h3 {
  margin: 12px 0 9px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.road-card p {
  flex: 1 1 auto;
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--ink-2);
}

.rd-tag {
  align-self: flex-start;
  margin-top: auto;
  font-size: 12px;
  color: var(--brand-deep);
  background: var(--brand-soft);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.road-note {
  margin: 26px 0 0;
  padding: 16px 22px;
  border-left: 2px solid var(--brand);
  border-radius: 0 10px 10px 0;
  background: linear-gradient(90deg, var(--brand-soft), rgba(253, 238, 232, 0) 72%);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- FAQ ---------- */
.faq .section-head {
  margin-bottom: 32px;
}

.qa {
  border-bottom: 1px solid var(--line);
}

.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 2px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  min-height: 56px;
  letter-spacing: -0.01em;
}

.qa summary::-webkit-details-marker {
  display: none;
}

.qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.24s ease;
}

.qa-mark::before,
.qa-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink-3);
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease, background 0.2s ease;
}

.qa-mark::before {
  width: 8px;
  height: 1px;
}

.qa-mark::after {
  width: 1px;
  height: 8px;
}

.qa[open] .qa-mark {
  background: var(--brand);
  border-color: var(--brand);
  transform: rotate(90deg);
}

.qa[open] .qa-mark::before,
.qa[open] .qa-mark::after {
  background: #fff;
}

.qa[open] .qa-mark::after {
  opacity: 0;
}

.qa-body {
  padding: 0 2px 22px;
  max-width: 62ch;
}

.qa-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 收口 ---------- */
.closing {
  margin: 0 32px;
  border-radius: 26px;
  background: linear-gradient(155deg, #1d2430 0%, #2c3546 58%, #44546a 100%);
  color: #fff;
  overflow: hidden;
  position: relative;
}

.closing::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(236, 87, 51, 0.32), rgba(168, 92, 42, 0) 70%);
}

.closing-inner {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 40px;
  text-align: center;
}

.closing-kicker {
  display: block;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 22px;
}

.closing h2 {
  margin: 0 0 32px;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.35;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.btn.light {
  background: #fff;
  color: #2a2f39;
  box-shadow: 0 14px 30px -16px rgba(0, 0, 0, 0.6);
}

.btn.light:hover {
  background: #fdf1ea;
}

.closing-note {
  margin: 20px 0 0;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 页脚 ---------- */
.site-foot {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 32px 64px;
}

.foot-inner {
  border-top: 1px solid var(--line-strong);
  padding-top: 32px;
}

.foot-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 18px;
}

.foot-legal {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 12px;
  line-height: 1.85;
  color: var(--ink-3);
}

.foot-copy {
  margin: 0;
  font-size: 12px;
  color: var(--ink-3);
}

/* ---------- 入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.68, 0.32, 1), transform 0.6s cubic-bezier(0.22, 0.68, 0.32, 1);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ==========================================================
   适配层
   ========================================================== */

@media (hover: none) {
  .trust-card:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--line);
  }
  .nav-links a::after {
    display: none;
  }
}

/* ---------- 平板 ---------- */
@media (max-width: 1000px) {
  .nav-inner,
  .section,
  .hero,
  .site-foot {
    padding-left: 24px;
    padding-right: 24px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 44px;
    padding-bottom: 72px;
  }

  .hero-visual {
    min-height: 340px;
    margin-top: 8px;
  }

  .preview-card {
    transform: rotate(1.2deg) translate(38px, 8px);
    max-width: 320px;
  }

  .ghost-card {
    transform: translate(-136px, -128px) rotate(-8deg);
    width: 200px;
  }

  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }

  .road-grid {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: 1fr;
    border-top: 0;
  }

  .flow-step {
    border-right: 0;
    border-top: 1px solid var(--line);
    padding: 26px 0;
  }

  .flow-step + .flow-step {
    padding-left: 0;
  }

  .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }
}

/* ---------- 手机 ---------- */
@media (max-width: 640px) {
  .nav-inner,
  .section,
  .hero,
  .site-foot {
    padding-left: 18px;
    padding-right: 18px;
  }

  .nav-inner {
    gap: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    margin-left: auto;
    min-height: 44px;
    padding: 0 16px;
    font-size: 13.5px;
  }

  .hero {
    padding-top: 32px;
    padding-bottom: 56px;
    gap: 34px;
  }

  .eyebrow {
    font-size: 12px;
    padding: 5px 12px 5px 10px;
  }

  .display {
    margin-top: 20px;
    font-size: clamp(32px, 9.6vw, 44px);
    line-height: 1.2;
  }

  .lede {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.8;
  }

  .hero-cta {
    margin-top: 26px;
    gap: 10px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn.primary {
    width: 100%;
    min-height: 52px;
    font-size: 16px;
    border-radius: 14px;
  }

  /* 次按钮降为文字链接，让主行动更突出 */
  .hero-cta .btn.ghost {
    width: 100%;
    min-height: 44px;
    border: 0;
    background: transparent;
    color: var(--ink-2);
    font-size: 14px;
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 5px;
    text-decoration-color: var(--line-strong);
  }

  .stats {
    margin-top: 32px;
    justify-content: space-between;
  }

  .stats li {
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    padding-right: 14px;
    margin-right: 14px;
    flex: 1 1 0;
  }

  .stats b {
    line-height: 1.1;
  }

  .stats b {
    font-size: 23px;
  }

  .stats span {
    font-size: 12px;
  }

  /* hero 视觉在手机上简化，避免旋转卡片挤压 */
  .hero-visual {
    min-height: auto;
    padding: 6px 0 0;
  }

  .hero-visual::before {
    display: none;
  }

  .ghost-card {
    display: none;
  }

  .preview-card {
    transform: none;
    max-width: 100%;
    padding: 20px 20px 0;
    border-radius: 18px;
    box-shadow: 0 2px 4px rgba(58, 42, 26, 0.04), 0 22px 40px -34px rgba(58, 42, 26, 0.55);
  }

  .pc-foot {
    margin: 0 -20px;
    padding: 13px 20px;
    border-radius: 0 0 18px 18px;
  }

  .pc-title {
    font-size: 23px;
  }

  .section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .idx {
    margin-bottom: 10px;
    font-size: 12px;
  }

  .section-head h2 {
    font-size: 22px;
    line-height: 1.38;
  }

  .section-head p {
    font-size: 14px;
  }

  .trust-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .trust-card {
    padding: 22px 18px;
  }

  .trust-card h3 {
    font-size: 15px;
    margin: 10px 0 8px;
  }

  .trust-card p {
    font-size: 13.5px;
  }

  .flow-step {
    padding: 22px 0;
  }

  .fs-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.fs-body h3 {
    font-size: 16px;
    margin: 10px 0 8px;
  }

  .fs-body p {
    font-size: 13.5px;
    margin-bottom: 12px;
  }

  .road-grid {
    gap: 12px;
  }

  .road-card {
    padding: 22px 18px 18px;
  }

  .road-note {
    padding: 14px 16px;
    font-size: 13px;
  }

  .prod-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .prod {
    padding: 24px 20px;
    border-radius: 18px;
  }

  .prod h3 {
    font-size: 16px;
  }

  /* 差异表在手机上转为卡片流 */
  .diff {
    border: 0;
    background: transparent;
    margin-top: 16px;
  }

  .diff-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 15px 18px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fffdfb;
    margin-bottom: 8px;
    font-size: 13.5px;
  }

  .diff-row span:first-child {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--brand-deep);
    margin-bottom: 2px;
  }

  .diff-row.diff-head {
    display: none;
  }

  .diff-row:not(.diff-head) span:nth-child(2)::before {
    content: "A · ";
    color: #44546a;
    font-weight: 600;
  }

  .diff-row:not(.diff-head) span:nth-child(3)::before {
    content: "B · ";
    color: #0f766e;
    font-weight: 600;
  }

  .qa summary {
    font-size: 15px;
    padding: 18px 0;
    min-height: 54px;
    gap: 12px;
  }

  .qa-body {
    padding-bottom: 18px;
  }

  .qa-body p {
    font-size: 13.5px;
  }

  .closing {
    margin: 0 14px;
    border-radius: 20px;
  }

  .closing-inner {
    padding: 44px 22px;
  }

  .closing h2 {
    font-size: 23px;
    margin-bottom: 26px;
  }

  .closing .btn {
    width: 100%;
    min-height: 52px;
    font-size: 15.5px;
  }

  .site-foot {
    padding-top: 40px;
    padding-bottom: calc(44px + env(safe-area-inset-bottom));
  }

  .foot-legal {
    font-size: 12px;
  }
}

/* ---------- 超小屏 ---------- */
@media (max-width: 380px) {
  .nav-inner,
  .section,
  .hero,
  .site-foot {
    padding-left: 14px;
    padding-right: 14px;
  }

  .display {
    font-size: 29px;
  }

  .stats b {
    font-size: 20px;
  }

  .stats span {
    font-size: 12px;
  }

  .prod {
    padding: 20px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}