/* 2026 设计层：首页 + 工作台 + 管理后台（登录页不改，尽量不触碰 .auth-*） */

html:has(#screen-landing.is-visible):not(:has(#screen-app.is-visible)),
body:has(#screen-landing.is-visible):not(:has(#screen-app.is-visible)) {
  height: auto;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

#screen-landing {
  min-height: 100vh;
  background: var(--bg-deep);
  color: var(--text);
}

#screen-landing.is-visible {
  display: block;
}

.landing-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 14px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 13, 20, 0.85);
  backdrop-filter: blur(12px);
}

.landing-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
}

.landing-nav__logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.landing-nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.landing-nav__links a,
.landing-nav__links button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font: inherit;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
}

.landing-nav__links a:hover,
.landing-nav__links button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.landing-nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.landing-hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 108px 48px 88px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(124, 58, 237, 0.35), transparent 55%),
    radial-gradient(ellipse 60% 50% at 80% 40%, rgba(37, 99, 235, 0.22), transparent 50%),
    linear-gradient(180deg, #0a1018 0%, #080d14 100%);
}

.landing-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(148, 163, 184, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.09) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.35;
}

.landing-hero__badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 22, 33, 0.78);
  color: #dbeafe;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.landing-hero__title {
  margin: 0 0 16px;
  font-size: clamp(52px, 8vw, 80px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  position: relative;
  z-index: 1;
}

.landing-hero__desc {
  margin: 0 auto 26px;
  max-width: 760px;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.landing-hero__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 34px;
  position: relative;
  z-index: 1;
}

.landing-hero__chips span {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(255, 255, 255, 0.03);
  color: #d1d5db;
  font-size: 13px;
  font-weight: 600;
}

.landing-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.btn-landing-primary {
  padding: 18px 38px;
  border-radius: 12px;
  border: none;
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  color: #fff;
  background: var(--gradient);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.35);
}

.btn-landing-secondary {
  padding: 18px 38px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  color: var(--text);
  background: rgba(15, 22, 33, 0.8);
}

.landing-section {
  padding: 80px 40px 0;
  max-width: 1280px;
  margin: 0 auto;
}

.landing-section__title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  position: relative;
  padding-left: 14px;
}

.landing-section__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: calc(100% - 8px);
  border-radius: 999px;
  background: linear-gradient(180deg, #3b82f6, #8b5cf6);
}

.landing-section__title::after {
  content: "";
  position: absolute;
  left: 14px;
  bottom: -8px;
  width: 84px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.95), rgba(139, 92, 246, 0.95));
}

.landing-section__sub {
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 14px;
}

.landing-pricing {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

@media (max-width: 800px) {
  .landing-pricing {
    grid-template-columns: 1fr;
  }
}

.landing-price-card {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 320px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-price-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(125deg, rgba(124, 58, 237, 0.7), rgba(37, 99, 235, 0.7), rgba(16, 185, 129, 0.65));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.8;
}

.landing-price-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.landing-price-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.landing-price-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 22px;
  background: rgba(37, 99, 235, 0.15);
}

.landing-price-card--icloud .landing-price-card__icon {
  background: rgba(124, 58, 237, 0.18);
}

.landing-price-card__name {
  font-weight: 700;
  font-size: 18px;
}

.landing-price-card__price {
  font-size: 56px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.landing-qty-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.landing-qty-row label {
  color: var(--text-muted);
  font-size: 13px;
}

.landing-qty-row input {
  width: auto;
  min-width: 60px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 0 10px;
  text-align: center;
}

.landing-estimate {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.landing-estimate strong {
  color: var(--text);
  font-size: 18px;
}

.landing-price-card .btn {
  width: 100%;
  margin-top: auto;
  min-height: 52px;
  font-size: 18px;
}

.landing-price-card__meta {
  color: var(--text-muted);
  font-size: 14px;
}

.landing-price-card__features {
  margin: 0;
  padding-left: 18px;
  color: #cbd5e1;
  font-size: 13px;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.landing-price-card__stock {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.landing-price-card__stock .ok {
  color: var(--success);
  font-weight: 700;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

@media (max-width: 900px) {
  .landing-features {
    grid-template-columns: 1fr;
  }
}

.landing-feature {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 24px;
  min-height: 230px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.landing-feature:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.7);
  box-shadow: 0 0 0 1px rgba(99, 102, 241, 0.28), 0 18px 34px rgba(37, 99, 235, 0.2);
}

.landing-feature__icon {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  font-size: 30px;
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid rgba(129, 140, 248, 0.35);
}

.landing-feature h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.landing-feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
}

.landing-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

@media (max-width: 900px) {
  .landing-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

.landing-stat-item {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 28px 24px;
}

.landing-stat-item__value {
  font-size: clamp(30px, 2.6vw, 40px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.landing-stat-item__label {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 13px;
}

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

.landing-testimonial {
  border-radius: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  padding: 18px;
  min-height: 190px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.landing-testimonial__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.landing-testimonial__head div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  color: #fbbf24;
}

.landing-testimonial__head strong {
  color: var(--text);
  font-size: 14px;
}

.landing-testimonial__avatar {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
}

.landing-testimonial p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.landing-partners {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.landing-partner {
  min-width: 140px;
  text-align: left;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(15, 22, 33, 0.7);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.landing-partner__icon {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.landing-partner--telegram .landing-partner__icon {
  background: #229ed9;
}

.landing-partner--gmail .landing-partner__icon {
  background: #ea4335;
}

.landing-partner--icloud .landing-partner__icon {
  background: #5e5ce6;
}

.landing-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 34px;
}

@media (max-width: 900px) {
  .landing-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 980px) {
  .landing-testimonials {
    grid-template-columns: 1fr;
  }

  .landing-footer__top {
    grid-template-columns: 1fr;
  }
}

.landing-step {
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  padding: 24px 20px;
  text-align: left;
  background: linear-gradient(155deg, rgba(37, 99, 235, 0.18), rgba(15, 22, 33, 0.9) 42%, rgba(124, 58, 237, 0.2));
  position: relative;
  min-height: 240px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.landing-step:not(:last-child)::after {
  content: "➤";
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(96, 165, 250, 0.9);
  text-shadow: 0 0 18px rgba(59, 130, 246, 0.6);
  font-size: 28px;
  font-weight: 700;
}

@media (max-width: 900px) {
  .landing-step:not(:last-child)::after {
    content: "";
  }
}

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

.landing-faq__item {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 14px 16px;
}

.landing-faq__item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.landing-faq__item p {
  margin: 10px 0 0;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 13px;
}

.landing-step__num {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--gradient);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
}

.landing-footer {
  border-top: 1px solid var(--border);
  margin-top: 56px;
  padding: 36px 48px 26px;
  color: var(--text-muted);
  font-size: 13px;
}

.landing-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.landing-footer__logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text);
}

.landing-footer__brand p {
  margin: 0;
  max-width: 520px;
  line-height: 1.7;
}

.landing-footer__links,
.landing-footer__contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.landing-footer__links h4,
.landing-footer__contact h4 {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--text);
}

.landing-footer__links button {
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.landing-footer__links button:hover {
  color: var(--text);
}

.landing-footer__contact p {
  margin: 0;
}

.landing-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.landing-footer a:hover {
  color: var(--text);
}

.landing-footer__bottom {
  margin-top: 24px;
  padding-top: 14px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

/* —— 工作台 Stripe 风 —— */
.workspace-shell {
  display: flex;
  flex-direction: column;
  gap: var(--admin-card-gap);
}

.workspace-metrics {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--admin-card-gap);
}

@media (max-width: 960px) {
  .workspace-metrics {
    grid-template-columns: 1fr;
  }
}

.workspace-metric-card {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 110px;
}

.workspace-metric-card--balance {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.workspace-metric-card__label {
  color: var(--text-muted);
  font-size: 13px;
}

.workspace-metric-card__value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.workspace-metric-card__value .rmb {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 4px;
}

.workspace-buy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--admin-card-gap);
}

@media (max-width: 900px) {
  .workspace-buy-grid {
    grid-template-columns: 1fr;
  }
}

.workspace-buy-card {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.workspace-buy-card:hover {
  border-color: rgba(124, 58, 237, 0.35);
  box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.2), 0 16px 48px rgba(0, 0, 0, 0.35);
}

.workspace-buy-card--gmail:hover {
  border-color: rgba(16, 185, 129, 0.45);
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.25), 0 16px 48px rgba(0, 0, 0, 0.35);
}

.workspace-buy-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.workspace-buy-card__title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.workspace-buy-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 24px;
  background: rgba(37, 99, 235, 0.15);
}

.workspace-buy-card--gmail .workspace-buy-card__icon {
  background: rgba(16, 185, 129, 0.15);
}

.workspace-buy-card__name {
  font-weight: 700;
  font-size: 18px;
}

.workspace-buy-card__unit {
  color: var(--text-muted);
  font-size: 13px;
}

.qty-stepper {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  width: fit-content;
}

.qty-stepper button {
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
}

.qty-stepper button:hover {
  background: rgba(255, 255, 255, 0.08);
}

.qty-stepper input {
  width: auto;
  min-width: 60px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text);
  text-align: center;
  font-size: 16px;
  font-weight: 600;
}

.workspace-buy-card__estimate {
  font-size: 14px;
  color: var(--text-muted);
}

.workspace-buy-card__estimate strong {
  color: var(--text);
  font-size: 18px;
}

.btn-buy-gmail {
  margin-top: auto;
  padding: 12px 18px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, #059669, #10b981);
}

.btn-buy-icloud {
  margin-top: auto;
  padding: 12px 18px;
  border-radius: 10px;
  border: none;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
}

.workspace-dev-strip {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
}

.workspace-dev-strip__label {
  color: var(--text-muted);
  font-size: 13px;
}

.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 0 0;
}

.pagination-bar button {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.pagination-bar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* —— 管理后台 Linear 风 —— */
.admin-nav-section-label {
  padding: 8px 12px 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.admin-nav-item {
  display: flex;
  align-items: center;
  width: 100%;
  text-align: left;
  gap: 10px;
  padding: 10px 12px;
  margin: 2px 0;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.admin-nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.admin-nav-item.is-active {
  background: rgba(124, 58, 237, 0.15);
  color: var(--text);
}

.admin-nav-item__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.5);
}

.admin-nav-item.is-active .admin-nav-item__dot {
  background: #a78bfa;
}

.admin-overview-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--admin-card-gap);
}

@media (max-width: 1100px) {
  .admin-overview-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.admin-stat-tile {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 20px;
  min-height: 96px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-stat-tile__label {
  font-size: 13px;
  color: var(--text-muted);
}

.admin-stat-tile__value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.admin-pane-stack {
  display: flex;
  flex-direction: column;
  gap: var(--admin-card-gap);
}

.modal-backdrop.is-open .modal--sm {
  max-width: 420px;
}

.config-toggle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.config-toggle-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.config-toggle-item span {
  font-size: 14px;
}