/* ==========================================================================
   前台样式（style.css）—— 亮色现代金融机构风
   依赖 assets/css/theme.css（令牌与基础组件）
   覆盖：落地页（nav / hero / trust / features / showcase / steps / stats /
        pricing / security / cta / footer）与认证页（signin / signup / totp）
   ========================================================================== */

/* --------------------------------------------------------------------------
   通用
   -------------------------------------------------------------------------- */
.section {
  padding: 96px 0;
}

.section--alt {
  background: var(--color-surface);
}

.section__head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section__title {
  margin: 16px 0 14px;
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
}

.section__desc {
  color: var(--color-muted);
  font-size: 1.02rem;
}

/* 入场动画：默认可见，JS 就绪后由 .is-animatable 接管 */
body.is-animatable .section__head,
body.is-animatable .feature,
body.is-animatable .showcase__inner,
body.is-animatable .step,
body.is-animatable .stats__inner,
body.is-animatable .pricing__grid,
body.is-animatable .pricing__toggle,
body.is-animatable .security__copy,
body.is-animatable .security__badges,
body.is-animatable .cta__inner {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms var(--transition-smooth), transform 600ms var(--transition-smooth);
}

body.is-animatable .visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   顶部导航
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--color-line);
  box-shadow: 0 6px 20px rgba(12, 22, 38, 0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav__logo:hover {
  color: var(--color-ink);
}

.nav__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--color-brand);
  color: #fff;
  flex-shrink: 0;
}

.nav__logo-mark svg {
  width: 18px;
  height: 18px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__link {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-ink);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav--open .nav__toggle span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav--open .nav__toggle span:nth-child(2) {
  opacity: 0;
}

.nav--open .nav__toggle span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* 认证页导航：不显示主菜单链接 */
.nav--solid {
  background: #fff;
  border-bottom-color: var(--color-line);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + 72px) 0 88px;
  overflow: hidden;
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 100%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 64px;
}

.hero__title {
  margin: 20px 0 22px;
  font-size: clamp(2.4rem, 5vw, 3.9rem);
  line-height: 1.06;
}

.hero__title-accent {
  color: var(--color-accent);
  position: relative;
  white-space: nowrap;
}

.hero__desc {
  max-width: 540px;
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.72;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}

.hero__stat-value {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero__stat-label {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 12.5px;
}

.hero__visual {
  position: relative;
  padding: 12px 0;
}

/* Hero 右侧：纯 CSS 账户概览卡 */
.acct-card {
  position: relative;
  z-index: 2;
  padding: 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  box-shadow: 0 30px 70px rgba(12, 22, 38, 0.12);
}

.acct-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.acct-card__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
}

.acct-card__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--color-brand-soft);
  color: var(--color-brand);
}

.acct-card__brand-mark svg {
  width: 15px;
  height: 15px;
}

.acct-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-pill);
  color: var(--color-success);
  font-size: 11.5px;
  font-weight: 600;
}

.acct-card__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.acct-card__balance-label {
  margin-top: 26px;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.acct-card__balance {
  margin-top: 6px;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 2.05rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.acct-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 12.5px;
}

.acct-card__meta strong {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-weight: 500;
}

.acct-card__rows {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 8px 0 0;
}

.acct-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-surface-2);
}

.acct-row:last-child {
  border-bottom: none;
}

.acct-row__name {
  color: var(--color-ink);
  font-size: 13.5px;
  font-weight: 600;
}

.acct-row__time {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 11.5px;
}

.acct-row__amount {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 500;
  white-space: nowrap;
}

.acct-row__amount--in {
  color: var(--color-success);
}

.acct-row__amount--out {
  color: var(--color-text);
}

.acct-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 12px;
}

.acct-card__foot strong {
  color: var(--color-accent);
  font-weight: 600;
}

.hero__chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  color: var(--color-ink);
  font-size: 12.5px;
  font-weight: 600;
}

.hero__chip--one {
  top: -6px;
  left: -26px;
}

.hero__chip--two {
  right: -18px;
  bottom: 26px;
}

.hero__chip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--color-accent-soft);
  color: var(--color-success);
}

.hero__chip-icon svg {
  width: 13px;
  height: 13px;
}

/* --------------------------------------------------------------------------
   Trust bar
   -------------------------------------------------------------------------- */
.trust {
  padding: 30px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.trust__inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.trust__label {
  flex-shrink: 0;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.trust__logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  color: #8d99aa;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* --------------------------------------------------------------------------
   Features
   -------------------------------------------------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.feature {
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.feature:hover {
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  background: var(--color-brand-soft);
  border-radius: var(--radius-sm);
  color: var(--color-brand);
}

.feature__icon svg {
  width: 22px;
  height: 22px;
}

.feature__title {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.feature__desc {
  flex: 1;
  color: var(--color-muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.feature__link {
  margin-top: 20px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Showcase（深靛蓝区块）
   -------------------------------------------------------------------------- */
.showcase {
  padding: 96px 0;
  background: var(--color-brand);
  background-image: repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.05) 0 1px,
      transparent 1px 72px
    );
  color: #e9edf5;
}

.showcase__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 64px;
}

.showcase .ui-eyebrow {
  color: #7fd0c2;
}

.showcase__title {
  margin: 18px 0 16px;
  color: #fff;
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
}

.showcase__desc {
  max-width: 460px;
  color: #b9c4d8;
  font-size: 1rem;
  line-height: 1.75;
}

.showcase__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.showcase__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #d5deec;
  font-size: 14px;
}

.showcase__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border-radius: 50%;
  background: rgba(127, 208, 194, 0.16);
  color: #7fd0c2;
  flex-shrink: 0;
}

.showcase__check svg {
  width: 12px;
  height: 12px;
}

.showcase__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  color: #7fd0c2;
  font-size: 14px;
  font-weight: 600;
}

/* 深色区块内的分析面板 */
.panel {
  padding: 24px;
  background: #101c38;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(4, 10, 24, 0.45);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.panel__title {
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
}

.panel__tag {
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(127, 208, 194, 0.14);
  color: #7fd0c2;
  font-size: 11.5px;
  font-weight: 600;
}

.panel__chart {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 132px;
  margin: 24px 0;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.panel__bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #7fd0c2, #2f7f8c);
  opacity: 0.9;
}

.panel__bar--muted {
  background: rgba(255, 255, 255, 0.14);
}

.panel__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.panel__metric-value {
  color: #fff;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 500;
}

.panel__metric-label {
  margin-top: 2px;
  color: #94a3bd;
  font-size: 11.5px;
}

.panel__rows {
  display: flex;
  flex-direction: column;
  margin-top: 20px;
}

.panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
}

.panel__row-name {
  color: #cdd7e6;
}

.panel__row-meta {
  color: #7f8ca3;
  font-size: 11.5px;
}

.panel__row-amount {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #7fd0c2;
}

/* --------------------------------------------------------------------------
   Steps
   -------------------------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.step {
  position: relative;
  padding: 30px 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 20px;
  border-radius: 50%;
  background: var(--color-brand-soft);
  color: var(--color-brand);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.step__title {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.step__desc {
  color: var(--color-muted);
  font-size: 13.5px;
}

/* --------------------------------------------------------------------------
   Stats
   -------------------------------------------------------------------------- */
.platform-stats {
  padding: 88px 0;
  background: var(--color-brand);
  color: #e9edf5;
}

.platform-stats .ui-eyebrow {
  color: #7fd0c2;
}

.stats__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 56px;
}

.stats__title {
  margin: 16px 0 12px;
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.stats__desc {
  max-width: 380px;
  color: #b9c4d8;
  font-size: 14.5px;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.stat {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.stat__value {
  color: #fff;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.stat__label {
  margin-top: 4px;
  color: #94a3bd;
  font-size: 12.5px;
}

/* --------------------------------------------------------------------------
   Pricing
   -------------------------------------------------------------------------- */
.pricing__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: -24px 0 40px;
  font-size: 13.5px;
}

.pricing__toggle-label {
  color: var(--color-muted);
  font-weight: 500;
}

.pricing__toggle-label--active {
  color: var(--color-ink);
  font-weight: 600;
}

.pricing__toggle-switch {
  position: relative;
  width: 46px;
  height: 26px;
  padding: 0;
  background: var(--color-surface-3);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.pricing__toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(12, 22, 38, 0.2);
  transition: transform var(--transition-smooth);
}

.pricing__toggle-switch.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.pricing__toggle-switch.active::after {
  transform: translateX(20px);
}

.pricing__save {
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-success);
  font-size: 11.5px;
  font-weight: 600;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
  gap: 24px;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pricing-card:hover {
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-card);
}

.pricing-card--featured {
  border-color: var(--color-brand);
  box-shadow: 0 20px 50px rgba(22, 38, 74, 0.12);
}

.pricing-card__badge {
  align-self: flex-start;
  margin-bottom: 16px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--color-brand);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
}

.pricing-card__name {
  font-size: 1.2rem;
}

.pricing-card__desc {
  margin-top: 8px;
  min-height: 44px;
  color: var(--color-muted);
  font-size: 13.5px;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 22px 0 24px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.pricing-card__period {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
  flex: 1;
}

.pricing-card__feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text);
  font-size: 13.5px;
}

.pricing-card__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-card__check svg {
  width: 11px;
  height: 11px;
}

.pricing-card__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 46px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: background var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast);
}

.pricing-card__btn--primary {
  background: var(--color-brand);
  color: #fff;
}

.pricing-card__btn--primary:hover {
  background: var(--color-brand-hover);
  color: #fff;
}

.pricing-card__btn--outline {
  background: transparent;
  border: 1px solid var(--color-line-strong);
  color: var(--color-brand);
}

.pricing-card__btn--outline:hover {
  background: var(--color-brand-soft);
  border-color: var(--color-brand);
  color: var(--color-brand);
}

/* --------------------------------------------------------------------------
   Security
   -------------------------------------------------------------------------- */
.security__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 64px;
}

.security__title {
  margin: 16px 0 12px;
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
}

.security__desc {
  max-width: 460px;
  color: var(--color-muted);
}

.security__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.security__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.security__item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  flex-shrink: 0;
}

.security__item-icon svg {
  width: 18px;
  height: 18px;
}

.security__item-title {
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 600;
}

.security__item-desc {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 13px;
}

.security__badges {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.badge-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.badge-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--color-brand-soft);
  color: var(--color-brand);
}

.badge-card__icon svg {
  width: 20px;
  height: 20px;
}

.badge-card__title {
  font-size: 14.5px;
}

.badge-card__desc {
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 12.5px;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   CTA
   -------------------------------------------------------------------------- */
.cta {
  padding: 0 0 96px;
}

.cta__inner {
  padding: 56px 48px;
  background: var(--color-brand);
  background-image: repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.05) 0 1px,
      transparent 1px 64px
    );
  border-radius: var(--radius-xl);
  text-align: center;
}

.cta__title {
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.cta__desc {
  max-width: 560px;
  margin: 14px auto 0;
  color: #b9c4d8;
  font-size: 15px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
}

.cta__actions .ui-btn--primary {
  background: #fff;
  color: var(--color-brand);
}

.cta__actions .ui-btn--primary:hover {
  background: #eef2f9;
  color: var(--color-brand);
}

.cta__actions .ui-btn--outline {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

.cta__actions .ui-btn--outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  padding: 64px 0 32px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 48px;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.footer__brand-desc {
  max-width: 340px;
  margin-top: 14px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.65;
}

.footer__col-title {
  margin-bottom: 16px;
  color: var(--color-ink);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer__link {
  display: block;
  margin-bottom: 10px;
  color: var(--color-muted);
  font-size: 13.5px;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}

.footer__copyright {
  color: var(--color-muted);
  font-size: 12.5px;
}

.footer__mail {
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.footer__mail:hover {
  color: var(--color-accent);
}

.footer__social {
  display: flex;
  gap: 18px;
}

.footer__social-link {
  color: var(--color-muted);
  font-size: 12.5px;
}

.footer__social-link:hover {
  color: var(--color-ink);
}

/* ==========================================================================
   认证页（signin / signup / totp）
   ========================================================================== */
.auth-page {
  background: var(--color-bg);
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  min-height: 100vh;
  padding-top: var(--nav-height);
}

.auth-aside {
  display: flex;
  align-items: center;
  padding: 64px;
  background: var(--color-brand);
  background-image: repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.05) 0 1px,
      transparent 1px 64px
    );
  color: #e9edf5;
}

.auth-aside__inner {
  max-width: 460px;
}

.auth-aside__eyebrow {
  color: #7fd0c2;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.auth-aside__title {
  margin: 18px 0 16px;
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.auth-aside__desc {
  color: #b9c4d8;
  font-size: 14.5px;
  line-height: 1.7;
}

.auth-aside__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 32px;
}

.auth-aside__item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #d5deec;
  font-size: 13.5px;
}

.auth-aside__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(127, 208, 194, 0.16);
  color: #7fd0c2;
  flex-shrink: 0;
}

.auth-aside__check svg {
  width: 12px;
  height: 12px;
}

.auth-aside__foot {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #8d9ab4;
  font-size: 12px;
}

.auth {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px 24px;
}

.auth--solo {
  min-height: 100vh;
  padding-top: calc(var(--nav-height) + 48px);
  padding-bottom: 48px;
}

.auth__container {
  width: 100%;
  max-width: 440px;
  padding: 40px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

.auth__header {
  margin-bottom: 28px;
}

.auth__title {
  margin: 12px 0 8px;
  font-size: 1.75rem;
}

.auth__subtitle {
  color: var(--color-muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.auth__form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.auth__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth__label {
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 600;
}

.auth__input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth__input::placeholder {
  color: #9aa6b6;
}

.auth__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
}

.auth__input.invalid {
  border-color: var(--color-danger);
}

.auth__field-error {
  display: none;
  margin-top: 2px;
  color: var(--color-danger);
  font-size: 12.5px;
}

.auth__password-wrapper {
  position: relative;
}

.auth__password-wrapper .auth__input {
  padding-right: 48px;
}

.auth__password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  transform: translateY(-50%);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.auth__password-toggle:hover {
  background: var(--color-surface-2);
  color: var(--color-ink);
}

.auth__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.auth__checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--color-text);
  font-size: 13px;
  cursor: pointer;
}

.auth__checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
}

.auth__link {
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
}

.auth__hint {
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.5;
}

.auth__error {
  display: none;
  padding: 10px 12px;
  background: #fbe7e5;
  border: 1px solid #f0cdca;
  border-radius: var(--radius-sm);
  color: var(--color-danger);
  font-size: 12.5px;
}

.auth__submit {
  width: 100%;
  min-height: 50px;
  margin-top: 4px;
  padding: 0 22px;
  background: var(--color-brand);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14.5px;
  font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast),
    opacity var(--transition-fast);
}

.auth__submit:hover:not(:disabled) {
  background: var(--color-brand-hover);
  transform: translateY(-1px);
}

.auth__submit:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.auth__submit:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.auth__submit:disabled:hover {
  transform: none;
}

.auth__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--color-muted);
  font-size: 12px;
}

.auth__divider::before,
.auth__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-line);
}

.auth__social {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.auth__social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 500;
}

.auth__social-btn:hover {
  border-color: var(--color-brand);
  color: var(--color-ink);
}

.auth__footer-text {
  margin-top: 24px;
  text-align: center;
  color: var(--color-muted);
  font-size: 13px;
}

.auth__foot {
  margin-top: 14px;
  text-align: center;
  color: var(--color-muted);
  font-size: 12.5px;
}

.auth__foot a {
  color: var(--color-accent);
}

.auth__foot a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.auth__code-input {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  letter-spacing: 0.5em;
  padding-left: calc(0.5em + 14px);
}

/* 忘记密码弹窗 */
.fp-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
}

.fp-modal.is-open {
  display: block;
}

.fp-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 22, 38, 0.55);
}

.fp-modal__box {
  position: relative;
  width: min(440px, calc(100vw - 32px));
  margin: 8vh auto 0;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
}

.fp-modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-size: 22px;
  line-height: 1;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.fp-modal__close:hover {
  background: var(--color-surface-2);
  color: var(--color-ink);
}

.fp-modal__title {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.fp-modal__desc {
  margin: 0 0 20px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

.fp-modal form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fp-code {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.fp-code .auth__input {
  flex: 1 1 auto;
}

.fp-send {
  flex: 0 0 auto;
  min-width: 110px;
  padding: 0 16px;
  background: var(--color-brand-soft);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  color: var(--color-brand);
  font-size: 13px;
  font-weight: 600;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.fp-send:hover:not(:disabled) {
  background: #dde6f7;
  border-color: var(--color-brand);
}

.fp-send:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.fp-msg {
  display: none;
  margin: 0;
  font-size: 12.5px;
}

.fp-msg.is-error {
  display: block;
  color: var(--color-danger);
}

.fp-msg.is-ok {
  display: block;
  color: var(--color-success);
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero__inner,
  .showcase__inner,
  .security__inner,
  .stats__inner {
    gap: 44px;
  }

  .hero__chip--one {
    left: -10px;
  }

  .hero__chip--two {
    right: -6px;
  }
}

@media (max-width: 992px) {
  .section {
    padding: 72px 0;
  }

  .hero {
    padding: calc(var(--nav-height) + 48px) 0 64px;
  }

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

  .hero__desc {
    max-width: none;
  }

  .hero__visual {
    max-width: 520px;
    width: 100%;
  }

  .showcase__inner,
  .security__inner,
  .stats__inner {
    grid-template-columns: 1fr;
  }

  .showcase__desc {
    max-width: none;
  }

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

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }

  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-layout {
    grid-template-columns: 1fr;
  }

  .auth-aside {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav__inner {
    gap: 20px;
  }

  .nav__links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 18px 18px;
    background: #fff;
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 16px 30px rgba(12, 22, 38, 0.08);
  }

  .nav--open .nav__links {
    display: flex;
  }

  .nav__link {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-surface-2);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__actions {
    margin-left: 0;
  }

  .nav__actions .nav__link {
    display: none;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .trust__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .trust__logos {
    gap: 24px;
    font-size: 0.85rem;
  }

  .feature-grid,
  .stats__grid,
  .security__badges {
    grid-template-columns: 1fr;
  }

  .cta__inner {
    padding: 40px 24px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .auth {
    padding: 32px 18px;
  }

  .auth__container {
    padding: 28px 22px;
  }

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

  .fp-modal__box {
    padding: 26px 20px;
  }

  .hero__chip--one,
  .hero__chip--two {
    display: none;
  }
}