/**
 * mlnets 前台 · Stitch 设计落地
 * Tokens from UI/stitch_ (AetherSoft / ClipMerge dark glass)
 */

:root {
  --bg: #0b1326;
  --surface: #0b1326;
  --surface-low: #131b2e;
  --surface-container: #171f33;
  --surface-high: #222a3d;
  --surface-highest: #2d3449;
  --surface-lowest: #060e20;
  --on-surface: #dae2fd;
  --on-variant: #c2c6d6;
  --primary: #adc6ff;
  --primary-container: #4c8eff;
  --on-primary: #002e69;
  --on-primary-fixed: #001a41;
  --secondary: #d5baff;
  --secondary-container: #6801d1;
  --tertiary: #00dfc1;
  --tertiary-container: #00a38d;
  --outline: #8c909f;
  --outline-variant: #414754;
  --error: #ffb4ab;
  --ok: #00dfc1;
  --wechat: #00c250;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --font-head: "Hanken Grotesk", "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: Inter, system-ui, sans-serif;
  --max: 1280px;
  --pad: 1rem;
  --pad-lg: 2.5rem;
  --glass: rgba(45, 52, 73, 0.18);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glow-primary: 0 0 24px rgba(173, 198, 255, 0.22);
  --grad-brand: linear-gradient(135deg, #adc6ff 0%, #d5baff 100%);
  --grad-btn: linear-gradient(135deg, #005ac2 0%, #6801d1 100%);
}

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

html {
  scroll-behavior: smooth;
}

body.home-theme-portal {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--on-surface);
  background-color: var(--bg);
  background-image: radial-gradient(circle at 2px 2px, rgba(140, 144, 159, 0.05) 1px, transparent 0);
  background-size: 40px 40px;
  -webkit-font-smoothing: antialiased;
}

body.home-theme-portal a {
  color: var(--primary);
  text-decoration: none;
}

body.home-theme-portal a:hover {
  color: var(--tertiary);
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  vertical-align: middle;
  user-select: none;
}

/* ===== Layout ===== */
.wrap,
.front-main {
  width: min(100% - 2 * var(--pad), var(--max));
  margin-inline: auto;
}

@media (min-width: 768px) {
  :root {
    --pad: 2.5rem;
  }
}

.front-main {
  padding: 7.5rem 0 4rem;
}

.front-main--auth {
  padding-top: 5rem;
  min-height: calc(100vh - 8rem);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Typography ===== */
.gradient-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.front-page-title,
.portal-hero h1,
.stitch-hero__title {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--on-surface);
}

.front-page-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.muted,
.portal-card__tagline,
.portal-card__meta {
  color: var(--on-variant);
}

.front-section-title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 2.5rem 0 1.25rem;
  color: var(--on-surface);
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 0.75rem var(--pad) 0;
  pointer-events: none;
}

.header-inner {
  pointer-events: auto;
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-radius: 9999px;
  background: rgba(11, 19, 38, 0.55);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.header-inner__main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1rem;
}

.header-start {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary) !important;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--grad-btn);
  box-shadow: 0 0 12px rgba(76, 142, 255, 0.6);
}

.nav {
  display: none;
  gap: 1.25rem;
  align-items: center;
}

@media (min-width: 860px) {
  .nav--left {
    display: flex;
  }
}

.nav a {
  color: var(--on-variant) !important;
  font-size: 0.95rem;
  font-weight: 500;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav a:hover,
.nav a.is-active {
  color: var(--primary) !important;
}

.nav a.is-active {
  border-bottom-color: var(--primary);
}

.header-end {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav--right {
  display: flex;
}

.header-member-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.25rem 0.35rem 0.25rem 0.75rem;
  border-radius: 9999px;
  background: rgba(45, 52, 73, 0.45);
  border: 1px solid var(--glass-border);
  font-size: 0.85rem;
}

.header-member-card__name {
  color: var(--on-surface) !important;
  font-weight: 600;
  max-width: 7rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-member-card__meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--on-variant) !important;
}

.header-member-card__badge {
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: rgba(173, 198, 255, 0.12);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 600;
}

.header-member-card__badge.is-vip {
  background: rgba(0, 223, 193, 0.15);
  color: var(--tertiary);
}

.header-member-card__pts strong {
  color: var(--on-surface);
}

.header-member-card__logout {
  color: var(--on-variant) !important;
  padding: 0.35rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.8rem;
}

.header-member-card__logout:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--error) !important;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, filter 0.2s, background 0.2s, border-color 0.2s;
  text-decoration: none !important;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary,
.btn-buy,
.btn-auth-submit {
  background: var(--grad-btn);
  color: #fff !important;
  box-shadow: var(--glow-primary);
}

.btn-primary:hover,
.btn-buy:hover,
.btn-auth-submit:hover {
  filter: brightness(1.12);
  color: #fff !important;
}

.btn-ghost,
.btn-secondary {
  background: rgba(45, 52, 73, 0.4);
  border-color: rgba(173, 198, 255, 0.25);
  color: var(--primary) !important;
  backdrop-filter: blur(12px);
}

.btn-ghost:hover,
.btn-secondary:hover {
  background: rgba(45, 52, 73, 0.65);
  color: var(--primary) !important;
}

.btn-tertiary {
  background: var(--tertiary);
  color: #00201a !important;
}

.btn-small {
  min-height: 36px;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

/* ===== Glass card ===== */
.glass-card,
.ai-glass-card,
.portal-card,
.product-card,
.front-vip-card,
.tool-detail-head,
.auth-card,
.account-stat-card {
  background: var(--glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.glass-card:hover,
.portal-card:hover,
.front-vip-card:hover {
  border-color: rgba(173, 198, 255, 0.45);
  box-shadow: var(--glow-primary);
}

.ai-glass-card__inner,
.front-panel {
  padding: 1.5rem;
}

@media (min-width: 768px) {
  .ai-glass-card__inner,
  .front-panel {
    padding: 2rem;
  }
}

/* ===== Home full-bleed hero ===== */
body.front-home-hero .front-main--home {
  width: 100%;
  max-width: none;
  padding: 0 0 4rem;
  margin: 0;
}

.front-home-body {
  padding-top: 2.5rem;
}

.portal-hero-screen {
  position: relative;
  min-height: min(92vh, 880px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.portal-hero-screen__media {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1.02);
  z-index: 0;
}

.portal-hero-screen__media--fallback {
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(76, 142, 255, 0.45), transparent 55%),
    radial-gradient(ellipse 70% 50% at 15% 85%, rgba(104, 1, 209, 0.35), transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(0, 223, 193, 0.12), transparent 60%),
    linear-gradient(160deg, #060e20 0%, #0b1326 40%, #131b2e 100%);
}

.portal-hero-screen__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(6, 14, 32, 0.55) 0%, rgba(6, 14, 32, 0.35) 40%, rgba(6, 14, 32, 0.82) 100%),
    linear-gradient(90deg, rgba(6, 14, 32, 0.55) 0%, transparent 45%);
  pointer-events: none;
}

.portal-hero-screen.has-image .portal-hero-screen__shade {
  background:
    linear-gradient(180deg, rgba(6, 14, 32, 0.45) 0%, rgba(6, 14, 32, 0.28) 35%, rgba(6, 14, 32, 0.88) 100%),
    linear-gradient(105deg, rgba(6, 14, 32, 0.65) 0%, rgba(6, 14, 32, 0.2) 55%, transparent 80%);
}

.portal-hero-screen__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 7rem 0 5rem;
  max-width: 52rem;
}

.portal-hero-screen__brand {
  display: inline-block;
  margin: 0 0 1.25rem;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  border: 1px solid rgba(173, 198, 255, 0.35);
  background: rgba(11, 19, 38, 0.45);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.portal-hero-screen__title {
  font-family: var(--font-head);
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0 0 1.25rem;
  color: #fff;
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
}

.portal-hero-screen__sub {
  max-width: 36rem;
  margin: 0 auto 2rem;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.7;
  color: rgba(218, 226, 253, 0.88);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

.portal-hero-screen .stitch-cta-row {
  justify-content: center;
}

.btn-ghost--on-hero {
  background: rgba(11, 19, 38, 0.45) !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
  color: #fff !important;
  backdrop-filter: blur(14px);
}

.btn-ghost--on-hero:hover {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #fff !important;
}

.portal-hero-screen__scroll {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(218, 226, 253, 0.7) !important;
  animation: hero-bounce 2.2s ease-in-out infinite;
}

.portal-hero-screen__scroll .material-symbols-outlined {
  font-size: 2rem;
}

@keyframes hero-bounce {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
    opacity: 0.55;
  }
  50% {
    transform: translateX(-50%) translateY(6px);
    opacity: 1;
  }
}

.portal-ops {
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
  color: var(--on-variant);
  font-size: 0.95rem;
  line-height: 1.7;
}

.portal-ops strong {
  color: var(--on-surface);
}

.portal-ops a {
  color: var(--primary);
}

.portal-hero {
  text-align: center;
  padding: 2rem 0 3rem;
  position: relative;
}

.stitch-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.portal-tools-section {
  position: relative;
  padding: 1rem 0 0.5rem;
}

.portal-tools-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.portal-tools-kicker {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tertiary);
}

.portal-tools-head h2 {
  font-family: var(--font-head);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
}

.portal-tools-count {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-xl);
  background: rgba(76, 142, 255, 0.1);
  border: 1px solid rgba(173, 198, 255, 0.22);
  line-height: 1.15;
}

.portal-tools-count strong {
  font-family: var(--font-head);
  font-size: 1.75rem;
  color: var(--primary);
}

.portal-tools-count span {
  font-size: 0.8rem;
  color: var(--on-variant);
}

.portal-tools {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.35rem;
}

@media (min-width: 800px) {
  .portal-tools {
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
  }

  .portal-tools .portal-card {
    grid-column: span 6;
  }

  .portal-tools--featured .portal-card--featured {
    grid-column: span 12;
  }

  .portal-tools--solo .portal-card {
    grid-column: span 12;
  }
}

@media (min-width: 1100px) {
  .portal-tools--featured .portal-card--featured {
    grid-column: span 7;
    min-height: 420px;
  }

  .portal-tools--featured .portal-card:not(.portal-card--featured) {
    grid-column: span 5;
    min-height: 420px;
  }

  .portal-tools--featured .portal-card:not(.portal-card--featured):nth-child(n + 3) {
    grid-column: span 4;
    min-height: 360px;
  }

  .portal-tools--featured .portal-card:not(.portal-card--featured):nth-child(n + 3):nth-child(3n + 3),
  .portal-tools--featured .portal-card:not(.portal-card--featured):nth-child(n + 3):nth-child(3n + 4),
  .portal-tools--featured .portal-card:not(.portal-card--featured):nth-child(n + 3):nth-child(3n + 5) {
    grid-column: span 4;
  }
}

.portal-card {
  display: flex;
  flex-direction: column;
  color: inherit !important;
  overflow: hidden;
  min-height: 320px;
  padding: 0;
  position: relative;
  border-radius: 1.75rem;
  background: linear-gradient(165deg, rgba(45, 52, 73, 0.55) 0%, rgba(19, 27, 46, 0.75) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
}

.portal-card:hover {
  border-color: rgba(173, 198, 255, 0.5);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.32), 0 0 36px rgba(173, 198, 255, 0.14);
  transform: translateY(-4px);
}

.portal-card__visual {
  position: relative;
  flex: 1 1 auto;
  min-height: 160px;
  overflow: hidden;
}

.portal-card--featured .portal-card__visual {
  min-height: 220px;
}

.portal-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03);
  transition: transform 0.7s ease;
}

.portal-card:hover .portal-card__bg {
  transform: scale(1.08);
}

.portal-card__bg--fallback {
  background:
    radial-gradient(circle at 80% 20%, rgba(76, 142, 255, 0.55), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(104, 1, 209, 0.4), transparent 50%),
    linear-gradient(145deg, #122033, #0b1326 60%, #1a2740);
}

.portal-card__visual-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 14, 32, 0.05) 0%, rgba(6, 14, 32, 0.55) 55%, rgba(6, 14, 32, 0.92) 100%);
  pointer-events: none;
}

.portal-card__icon {
  position: absolute;
  left: 1.25rem;
  bottom: 1.15rem;
  z-index: 2;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-btn);
  color: #fff;
  box-shadow: 0 10px 28px rgba(0, 90, 194, 0.35);
}

.portal-card__icon .material-symbols-outlined {
  font-size: 1.65rem;
}

.portal-card--featured .portal-card__icon {
  width: 3.75rem;
  height: 3.75rem;
  border-radius: 1.15rem;
}

.portal-card__ribbon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background: rgba(0, 223, 193, 0.18);
  border: 1px solid rgba(0, 223, 193, 0.45);
  color: var(--tertiary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  backdrop-filter: blur(10px);
}

.portal-card__body {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1.4rem 1.5rem;
  margin-top: -2.5rem;
}

.portal-card--featured .portal-card__body {
  padding: 1.5rem 1.75rem 1.85rem;
}

.portal-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.portal-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.65rem;
  border-radius: 9999px;
  background: rgba(173, 198, 255, 0.14);
  border: 1px solid rgba(173, 198, 255, 0.28);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 600;
}

.portal-chip--muted {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--on-variant);
}

.portal-chip--accent {
  background: rgba(0, 223, 193, 0.12);
  border-color: rgba(0, 223, 193, 0.3);
  color: var(--tertiary);
}

.portal-card__body h2 {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  margin: 0 0 0.55rem;
  color: #fff;
  letter-spacing: -0.02em;
}

.portal-card--featured .portal-card__body h2 {
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.portal-card__tagline {
  margin: 0 0 1.15rem;
  flex: 1;
  color: rgba(194, 198, 214, 0.95);
  font-size: 0.98rem;
  line-height: 1.65;
  max-width: 36rem;
}

.portal-card__cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.95rem;
  transition: gap 0.2s ease;
}

.portal-card:hover .portal-card__cta {
  gap: 0.7rem;
  color: var(--tertiary);
}

@media (min-width: 1100px) {
  .portal-card--featured {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    align-items: stretch;
  }

  .portal-card--featured .portal-card__visual {
    min-height: 100%;
  }

  .portal-card--featured .portal-card__body {
    margin-top: 0;
    justify-content: center;
    padding: 2.25rem 2rem;
  }
}

.portal-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin: 4rem 0;
  padding: 3rem 0;
  border-top: 1px solid rgba(65, 71, 84, 0.4);
  border-bottom: 1px solid rgba(65, 71, 84, 0.4);
  text-align: center;
}

@media (min-width: 768px) {
  .portal-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.portal-stats__num {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
}

.portal-stats__num--teal {
  color: var(--tertiary);
}

.portal-stats__num--violet {
  color: var(--secondary);
}

.portal-cta-band {
  margin: 2rem 0 1rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 2rem;
}

.portal-cta-band::before,
.portal-cta-band::after {
  content: "";
  position: absolute;
  width: 16rem;
  height: 16rem;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.portal-cta-band::before {
  top: -6rem;
  left: -6rem;
  background: rgba(173, 198, 255, 0.18);
}

.portal-cta-band::after {
  bottom: -6rem;
  right: -6rem;
  background: rgba(213, 186, 255, 0.16);
}

.portal-cta-band > * {
  position: relative;
  z-index: 1;
}

/* ===== Tool detail ===== */
.tool-detail-head {
  display: grid;
  gap: 1.75rem;
  padding: 1.75rem;
  margin-bottom: 2rem;
}

@media (min-width: 900px) {
  .tool-detail-head {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
    padding: 2.5rem;
  }
}

.tool-detail-cover {
  border-radius: var(--radius-2xl);
  min-height: 220px;
  background: linear-gradient(145deg, rgba(76, 142, 255, 0.25), rgba(104, 1, 209, 0.2));
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.tool-detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 240px;
}

.tool-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background: rgba(173, 198, 255, 0.1);
  border: 1px solid rgba(173, 198, 255, 0.25);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* ===== Tool intro (图文 / 视频) ===== */
.tool-intro {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 0 0 2rem;
}

.tool-intro-block {
  padding: 1.5rem 1.5rem 1.75rem;
  border-radius: var(--radius-xl);
  background: var(--glass);
  border: 1px solid var(--glass-border);
}

.tool-intro__title {
  font-family: var(--font-head);
  font-size: 1.35rem;
  margin: 0 0 1.1rem;
  letter-spacing: -0.02em;
}

.tool-intro-video {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #060e20;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tool-intro-video__player {
  display: block;
  width: 100%;
  max-height: min(70vh, 560px);
  background: #000;
}

.tool-intro-video__frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #000;
}

.tool-intro-video__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.tool-intro-block--gallery {
  padding: 0;
  background: transparent;
  border: none;
}

.tool-intro-gallery {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.tool-intro-gallery__item {
  display: block;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: #131b2e;
}

.tool-intro-gallery__item img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.tool-intro-html {
  color: var(--on-variant);
  font-size: 1rem;
  line-height: 1.75;
}

.tool-intro-html h2,
.tool-intro-html h3 {
  font-family: var(--font-head);
  color: var(--on-surface);
  margin: 1.25rem 0 0.65rem;
}

.tool-intro-html p {
  margin: 0 0 0.9rem;
}

.tool-intro-html ul,
.tool-intro-html ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.tool-intro-html img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: 0.75rem 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.tool-intro-html a {
  color: var(--primary);
}

.tool-versions {
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background: var(--glass);
  border: 1px solid var(--glass-border);
}

.tool-versions h2 {
  font-family: var(--font-head);
  margin: 0 0 1rem;
  font-size: 1.35rem;
}

.tool-versions table,
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.tool-versions th,
.tool-versions td,
.data-table th,
.data-table td {
  padding: 0.85rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid rgba(65, 71, 84, 0.35);
  vertical-align: top;
}

.tool-versions th,
.data-table th {
  color: var(--on-variant);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  background: rgba(34, 42, 61, 0.5);
}

.data-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}

/* ===== Auth ===== */
.auth-shell {
  width: min(100%, 480px);
  margin: 0 auto;
}

.auth-shell__title {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-shell__title h1 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
}

.auth-card {
  padding: 2rem 1.5rem;
}

@media (min-width: 640px) {
  .auth-card {
    padding: 2.5rem;
  }
}

.auth-tabs {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.auth-tabs a {
  padding: 0.85rem 1rem;
  color: var(--on-variant) !important;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.auth-tabs a.is-active {
  color: var(--primary) !important;
  border-bottom-color: var(--primary);
}

.login-form .field,
.ai-form .field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.15rem;
}

.login-form .field > span,
.ai-form .field > span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-variant);
}

.login-form input,
.ai-form input,
.auth-input {
  width: 100%;
  height: 3.25rem;
  padding: 0 1rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(45, 52, 73, 0.35);
  color: var(--on-surface);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.login-form input:focus,
.ai-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(173, 198, 255, 0.15);
}

.login-form-actions {
  margin-top: 1.5rem;
}

.auth-links {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.25rem;
  font-size: 0.9rem;
}

.ai-alert {
  display: flex;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  background: rgba(147, 0, 10, 0.35);
  border: 1px solid rgba(255, 180, 171, 0.35);
  color: var(--error);
}

.ai-alert--error p {
  margin: 0;
}

.flash-ok {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: rgba(0, 223, 193, 0.12);
  border: 1px solid rgba(0, 223, 193, 0.35);
  color: var(--tertiary);
}

.reg-hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

.login-tip,
.front-auth-admin-tip {
  font-size: 0.85rem;
  color: var(--on-variant);
  margin-top: 1rem;
}

/* ===== VIP ===== */
.front-vip .ai-glass-card {
  border: none;
  background: transparent;
  backdrop-filter: none;
  box-shadow: none;
}

.front-vip .ai-glass-card__inner {
  padding: 0;
}

.member-vip-balance {
  margin: 0.35rem 0 0;
}

.front-vip-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 720px) {
  .front-vip-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.front-vip-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.front-vip-card .card-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  margin: 0;
}

.front-vip-card .price {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  margin: 0.5rem 0;
  color: var(--on-surface);
}

.front-vip-card-meta {
  margin: 0 0 1rem;
  flex: 1;
}

.front-vip-card .btn-buy {
  width: 100%;
  border-radius: 9999px;
}

.btn-wechat-pay,
.btn.btn-wechat-pay {
  background: #07c160 !important;
  background-image: none !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 8px 22px rgba(7, 193, 96, 0.35);
}

.btn-wechat-pay:hover,
.btn.btn-wechat-pay:hover {
  background: #06ad56 !important;
  filter: none;
  color: #fff !important;
  box-shadow: 0 10px 26px rgba(7, 193, 96, 0.42);
}

.front-vip-card--featured {
  border-color: rgba(0, 223, 193, 0.55);
  box-shadow: 0 0 28px rgba(0, 223, 193, 0.15);
}

.vip-benefit {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: rgba(0, 223, 193, 0.1);
  border: 1px solid rgba(0, 223, 193, 0.25);
  color: var(--tertiary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.vip-compare {
  margin-top: 3rem;
  overflow-x: auto;
}

.vip-compare table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.vip-compare th,
.vip-compare td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-align: left;
}

.vip-compare th {
  background: var(--surface-high);
  font-family: var(--font-head);
}

.vip-compare .col-vip {
  color: var(--tertiary);
  font-weight: 700;
}

/* Pay modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(11, 19, 38, 0.82);
  backdrop-filter: blur(16px);
}

.modal-overlay.show {
  display: flex;
}

.modal {
  width: min(100%, 420px);
  padding: 2rem;
  border-radius: var(--radius-xl);
  background: rgba(23, 31, 51, 0.92);
  border: 1px solid rgba(173, 198, 255, 0.25);
  box-shadow: var(--glow-primary);
  position: relative;
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.85rem;
  border: none;
  background: transparent;
  color: var(--on-variant);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal h3 {
  font-family: var(--font-head);
  margin: 0 0 0.75rem;
}

.pay-amount {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--tertiary);
  margin-bottom: 0.5rem;
}

.pay-hint {
  color: var(--on-variant);
  font-size: 0.9rem;
}

.qr-frame {
  margin: 1.25rem auto;
  width: 220px;
  min-height: 220px;
  padding: 0.75rem;
  background: #fff;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.qr-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.92);
}

.qr-loading.hide {
  display: none;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid #dbe4ff;
  border-top-color: #4c8eff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.pay-error {
  color: var(--error);
  min-height: 1.25rem;
  font-size: 0.9rem;
}

/* ===== Account ===== */
.member-account-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.account-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (min-width: 800px) {
  .account-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.account-stat-card {
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.account-stat-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(76, 142, 255, 0.18);
  color: var(--primary-container);
  margin-bottom: 1rem;
}

.account-stat-card__label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-variant);
  margin: 0 0 0.35rem;
}

.account-stat-card__value {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.1;
}

.account-stat-card__sub {
  margin: 0.35rem 0 1.25rem;
  color: var(--on-variant);
  font-size: 0.9rem;
}

.delta-plus {
  color: var(--tertiary) !important;
}

.delta-minus {
  color: var(--error) !important;
}

.badge {
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-ok {
  background: rgba(0, 223, 193, 0.15);
  color: var(--tertiary);
}

/* ===== Footer ===== */
.site-footer {
  margin-top: 3rem;
  padding: 2.5rem var(--pad);
  border-top: 1px solid rgba(65, 71, 84, 0.35);
  background: var(--surface-lowest);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.site-footer__brand {
  margin: 0;
  color: var(--on-variant);
  font-size: 0.9rem;
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

.site-footer__links a {
  color: var(--on-variant) !important;
  font-size: 0.85rem;
}

.site-footer__links a:hover {
  color: var(--primary) !important;
}

/* Override legacy light cards on front */
body.home-theme-portal .ai-glass-card,
body.home-theme-portal .product-card,
body.home-theme-portal .login-card {
  background: var(--glass);
  color: var(--on-surface);
  box-shadow: none;
}

body.home-theme-portal .ai-page {
  background: transparent;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}