/* 知萌下载页 — 静态站，无构建 */

:root {
  --bg: #f7f5ff;
  --surface: #ffffff;
  --text: #1a1530;
  --muted: #5c5670;
  --accent: #6b4dff;
  --accent-hover: #5438e0;
  --green: #2f8f46;
  --green-soft: #e8f5e9;
  --amber: #8a5b00;
  --amber-soft: #fff5d8;
  --blue-soft: #eaf4ff;
  --border: #e4dff5;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(26, 21, 48, 0.08);
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: linear-gradient(165deg, #f0ebff 0%, var(--bg) 45%, #fff 100%);
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.sales-wrap {
  max-width: 1120px;
}

.wrap-wide {
  max-width: 960px;
}

header.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

header.hero-compact {
  margin-bottom: 1.5rem;
}

.sales-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.78fr);
  gap: 3rem;
  align-items: center;
  min-height: 430px;
  padding: 1rem 0 2.5rem;
}

.sales-hero-copy {
  min-width: 0;
}

.sales-hero h1 {
  margin: 0 0 0.45rem;
  font-size: 3rem;
  line-height: 1.12;
  letter-spacing: 0;
}

.sales-subtitle {
  margin: 0;
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 700;
}

.sales-copy {
  max-width: 36rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.hero-facts span {
  padding: 0.45rem 0.7rem;
  color: #23422a;
  background: var(--green-soft);
  border: 1px solid #cfebd4;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-product {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  text-align: center;
}

.hero-product h2 {
  margin: 0.25rem 0 0.5rem;
  font-size: 1.35rem;
}

.hero-product p {
  margin: 0;
  color: var(--muted);
}

.product-tags {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.product-tags span {
  padding: 0.65rem 0.25rem;
  background: #fbfaff;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-weight: 700;
}

.ops-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.ops-hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.ops-hero .logo-wrap {
  margin: 0;
}

.ops-hero .subtitle {
  margin-left: 0;
  margin-right: 0;
}

.ops-hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem;
}

.eyebrow {
  margin-bottom: 0.2rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

/* 资源图常带内边留白：用裁切容器 + 轻微放大，让主体填满圆角区域 */
.logo-wrap {
  width: 104px;
  height: 104px;
  margin: 0 auto 1.25rem;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
}

.logo-wrap-small {
  width: 72px;
  height: 72px;
  border-radius: 16px;
}

.logo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  /* 放大画面，裁掉 PNG 四周多余留白（按实际资源可微调 1.15–1.35） */
  transform: scale(1.28);
  transform-origin: center center;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 34em;
  margin-left: auto;
  margin-right: auto;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.sales-section {
  margin-bottom: 1.5rem;
  padding: 1.75rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.25rem;
}

.section-title-row h2 {
  margin: 0;
  font-size: 1.4rem;
  line-height: 1.35;
}

.section-title-row > p {
  max-width: 28rem;
  margin: 0;
  color: var(--muted);
}

.section-title-row .eyebrow {
  margin-bottom: 0.2rem;
  color: var(--accent);
}

.feature-grid,
.pricing-grid,
.process-grid,
.faq-grid {
  display: grid;
  gap: 1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-block,
.plan-card,
.process-step,
.faq-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.feature-block {
  padding: 1rem;
}

.feature-kicker {
  display: inline-flex;
  margin-bottom: 0.75rem;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
}

.feature-block h3,
.faq-item h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.feature-block p,
.plan-card p,
.process-step p,
.faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.plan-card {
  display: grid;
  gap: 0.85rem;
  padding: 1.1rem;
}

.plan-card.is-featured {
  border-color: #b8e0bf;
  background: linear-gradient(180deg, #f6fff7 0%, #fff 100%);
  box-shadow: 0 10px 28px rgba(47, 143, 70, 0.12);
}

.plan-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.plan-head h3 {
  margin: 0;
  font-size: 1.08rem;
}

.plan-badge {
  flex: 0 0 auto;
  padding: 0.28rem 0.55rem;
  color: #1f6b31;
  background: var(--green-soft);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.plan-badge.muted {
  color: #65502a;
  background: var(--amber-soft);
}

.plan-price {
  color: var(--text) !important;
  font-size: 2rem !important;
  font-weight: 800;
  line-height: 1.1;
}

.plan-price span {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.plan-cta {
  align-self: end;
}

.plan-note {
  margin: 1rem 0 0;
  padding: 0.8rem 0.95rem;
  color: var(--amber);
  background: var(--amber-soft);
  border-radius: 8px;
  font-weight: 700;
}

.process-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.process-step {
  padding: 0.85rem;
}

.process-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  margin-bottom: 0.55rem;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
}

.process-step strong {
  display: block;
  margin-bottom: 0.35rem;
}

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

.faq-item {
  padding: 1rem;
  background: #fbfdff;
}

.version-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.version-line strong {
  color: var(--text);
  font-size: 1.1rem;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-stable {
  background: #e8f5e9;
  color: #2e7d32;
}

.badge-beta {
  background: #fff3e0;
  color: #e65100;
}

.cta-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.download-platform {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}

.download-platform h3 {
  margin: 0;
  font-size: 1rem;
}

.download-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, transform 0.1s ease;
}

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

.btn.is-disabled,
.btn.is-disabled:hover {
  background: #eeeaf8;
  border-color: var(--border);
  color: #8c86a3;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--accent);
  border: 2px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
}

.download-status {
  display: none;
  margin: 0.85rem 0 0;
  color: #7c4d00;
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
}

.download-status.is-visible {
  display: block;
}

.note {
  margin: 1.25rem 0 0;
  padding: 1rem 1rem;
  background: #faf8ff;
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--muted);
  border-left: 4px solid var(--accent);
}

.note p {
  margin: 0 0 0.5rem;
}

.note p:last-child {
  margin-bottom: 0;
}

.pay-card {
  text-align: left;
}

.order-summary {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
}

.order-summary div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.order-summary span {
  color: var(--muted);
  font-size: 0.9rem;
}

.order-summary strong {
  text-align: right;
}

.qr-wrap {
  display: flex;
  justify-content: center;
  margin: 1.25rem 0;
}

.qr-code {
  width: min(260px, 100%);
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  background: #fff;
}

.proof-form {
  display: grid;
  gap: 1rem;
}

.proof-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.proof-form input,
.proof-form select,
.proof-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  color: var(--text);
  font: inherit;
  background: #fff;
}

.proof-form textarea {
  resize: vertical;
}

.success-banner {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 10px;
  font-size: 0.9rem;
}

.success-banner.is-visible {
  display: block;
}

.is-hidden {
  display: none !important;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-header h2 {
  margin: 0;
}

.compact-btn {
  min-width: auto;
  padding: 0.65rem 0.9rem;
}

.text-btn {
  border: 0;
  padding: 0;
  color: var(--accent);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.text-btn:hover {
  text-decoration: underline;
}

.ops-setup-card {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1.25rem;
  align-items: center;
}

.ops-setup-card.is-collapsed {
  display: none;
}

.ops-setup-copy p {
  margin: 0;
  color: var(--muted);
}

.ops-setup-form {
  display: grid;
  gap: 0.85rem;
}

.ops-setup-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.ops-token-field input,
.ops-advanced input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  color: var(--text);
  font: inherit;
  background: #fff;
}

.ops-advanced {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fbfaff;
}

.ops-advanced summary {
  color: var(--muted);
  cursor: pointer;
  font-weight: 600;
}

.ops-advanced label {
  margin-top: 0.75rem;
}

.ops-dashboard {
  padding: 1.25rem;
}

.ops-state-pill {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  background: #fff3e0;
  color: #7c4d00;
  font-size: 0.82rem;
  font-weight: 700;
}

.ops-state-pill.is-ok {
  background: #e8f5e9;
  color: #2e7d32;
}

.empty-state {
  padding: 1rem;
  color: var(--muted);
  background: #faf8ff;
  border-radius: 10px;
}

.ops-list {
  display: grid;
  gap: 1rem;
}

.ops-order {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem;
  background: #fff;
  box-shadow: 0 8px 24px rgba(26, 21, 48, 0.05);
}

.ops-order-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.ops-order-id {
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
}

.ops-amount {
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 700;
  white-space: nowrap;
}

.muted-text {
  color: var(--muted);
  font-size: 0.9rem;
}

.ops-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.ops-grid div {
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem;
  background: #f8f7ff;
  border-radius: 10px;
}

.ops-grid span {
  color: var(--muted);
  font-size: 0.85rem;
}

.ops-order-workflow {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 1rem;
  align-items: start;
}

.ops-proof {
  padding: 1rem;
  color: var(--text);
  background: #fbfbff;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.ops-proof-title {
  margin-bottom: 0.75rem;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
}

.ops-proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.ops-proof-grid div,
.ops-proof-note {
  display: grid;
  gap: 0.2rem;
  padding: 0.65rem;
  border-radius: 10px;
  background: #fff;
}

.ops-proof-grid span,
.ops-proof-note span,
.ops-proof-footer span {
  color: var(--muted);
  font-size: 0.82rem;
}

.ops-proof-grid strong,
.ops-proof-note strong {
  word-break: break-word;
}

.ops-proof-note {
  margin-top: 0.6rem;
}

.ops-proof-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.ops-checklist {
  display: grid;
  gap: 0.45rem;
  padding: 0.85rem;
  color: var(--muted);
  background: #fffdf5;
  border: 1px solid #f1df9b;
  border-radius: 10px;
  font-size: 0.9rem;
}

.ops-checklist strong {
  color: #7c5c00;
}

.ops-checklist label {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  color: var(--text);
}

.ops-checklist input {
  flex: 0 0 auto;
  margin-top: 0.25rem;
}

.ops-confirm-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}

.ops-checklist,
.ops-note-field {
  grid-column: 1 / -1;
}

.ops-confirm-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.ops-confirm-form input,
.ops-confirm-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  color: var(--text);
  font: inherit;
}

.ops-confirm-form button {
  grid-column: 1 / -1;
}

.ops-dialog-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(26, 21, 48, 0.45);
}

.ops-dialog-backdrop[hidden] {
  display: none;
}

.ops-dialog {
  width: min(520px, 100%);
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 18px 60px rgba(26, 21, 48, 0.18);
}

.ops-dialog-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.ops-dialog-brand img {
  flex: 0 0 auto;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(26, 21, 48, 0.1);
}

.ops-dialog h2 {
  margin: 0;
  font-size: 1.35rem;
}

.ops-dialog-message {
  margin: 1rem 0;
  color: var(--muted);
}

.ops-dialog-summary {
  display: grid;
  gap: 0.5rem;
  padding: 0.85rem;
  border-radius: 12px;
  background: #faf8ff;
}

.ops-dialog-summary div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.ops-dialog-summary span {
  color: var(--muted);
}

.ops-dialog-summary strong {
  text-align: right;
  word-break: break-word;
}

.ops-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

ul.req {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

section.beta {
  display: none;
}

section.beta.is-visible {
  display: block;
}

.beta-title {
  display: none;
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

section.beta.is-visible .beta-title {
  display: block;
}

.beta .card {
  border-style: dashed;
}

footer.site-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

footer.site-footer p {
  margin: 0 0 0.75rem;
}

footer.site-footer a {
  word-break: break-all;
}

.err-banner {
  display: none;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: #ffebee;
  color: #b71c1c;
  border-radius: 10px;
  font-size: 0.9rem;
}

.err-banner.is-visible {
  display: block;
}

@media (min-width: 520px) {
  .cta-row {
    flex-direction: row;
    flex-wrap: wrap;
  }

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

  .btn {
    flex: 1;
    min-width: 200px;
  }
}

@media (max-width: 980px) {
  .sales-hero,
  .section-title-row {
    grid-template-columns: 1fr;
  }

  .sales-hero {
    gap: 1.5rem;
    min-height: auto;
  }

  .section-title-row {
    display: grid;
    gap: 0.75rem;
  }

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

@media (max-width: 720px) {
  .wrap {
    padding: 1.5rem 1rem 3rem;
  }

  .sales-hero h1 {
    font-size: 2.25rem;
  }

  .sales-subtitle {
    font-size: 1.25rem;
  }

  .feature-grid,
  .pricing-grid,
  .process-grid,
  .faq-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .sales-section,
  .card,
  .hero-product {
    padding: 1.25rem;
  }

  .product-tags {
    grid-template-columns: 1fr;
  }

  .ops-hero,
  .ops-hero-brand,
  .ops-hero-actions,
  .ops-proof-footer,
  .ops-dialog-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .ops-hero-actions {
    justify-content: stretch;
  }

  .ops-setup-card,
  .ops-grid,
  .ops-order-workflow,
  .ops-proof-grid,
  .ops-confirm-form {
    grid-template-columns: 1fr;
  }

  .ops-note-field {
    grid-column: auto;
  }

  .ops-order-main {
    flex-direction: column;
  }
}