:root {
  --guide-bg: #fff7f7;
  --guide-surface: rgba(255, 255, 255, 0.92);
  --guide-surface-strong: #ffffff;
  --guide-border: rgba(239, 68, 68, 0.14);
  --guide-text: #1f2937;
  --guide-muted: #6b7280;
  --guide-accent: #e11d48;
  --guide-accent-soft: #fff1f2;
  --guide-shadow: 0 24px 60px rgba(148, 163, 184, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--guide-text);
  background:
    radial-gradient(circle at top right, rgba(251, 191, 36, 0.12), transparent 28%),
    radial-gradient(circle at left center, rgba(239, 68, 68, 0.12), transparent 30%),
    linear-gradient(180deg, #fff8f8 0%, #fffdfd 56%, #fff5f5 100%);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.guide-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.guide-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  color: var(--guide-muted);
  font-size: 14px;
  font-weight: 600;
}

.guide-back-link:hover {
  color: var(--guide-accent);
}

.guide-hero,
.guide-article-hero {
  position: relative;
  overflow: hidden;
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 32px;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.96), rgba(255, 245, 247, 0.9));
  box-shadow: var(--guide-shadow);
}

.guide-hero::after,
.guide-article-hero::after {
  content: "";
  position: absolute;
  inset: auto -40px -40px auto;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.12), transparent 68%);
  pointer-events: none;
}

.guide-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--guide-accent-soft);
  color: var(--guide-accent);
  font-size: 13px;
  font-weight: 700;
}

.guide-hero h1,
.guide-article-hero h1 {
  margin: 18px 0 14px;
  font-size: clamp(34px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.guide-hero p,
.guide-article-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--guide-muted);
  font-size: 17px;
}

.guide-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.guide-video-shell {
  margin-top: 24px;
  overflow: hidden;
  border-radius: 28px;
  background: #000;
}

.guide-video-shell-full {
  width: 100%;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.guide-video-preview-button,
.guide-video-player {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
  padding: 0;
}

.guide-video-preview-button {
  position: relative;
  cursor: pointer;
  background: transparent;
}

.guide-video-preview-button:focus-visible {
  outline: 3px solid rgba(225, 29, 72, 0.24);
  outline-offset: 3px;
}

.guide-video-preview {
  display: block;
  width: 100%;
  height: auto;
}

.guide-video-preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.22);
  transition: background 0.18s ease;
}

.guide-video-preview-play {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 82px;
  height: 82px;
  margin: -41px 0 0 -41px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--guide-accent);
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.18);
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.guide-video-preview-play svg {
  width: 34px;
  height: 34px;
  margin-left: 4px;
}

.guide-video-preview-button:hover .guide-video-preview-overlay {
  background: rgba(17, 24, 39, 0.3);
}

.guide-video-preview-button:hover .guide-video-preview-play {
  transform: scale(1.04);
  background: #ffffff;
}

.guide-video-player {
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #000;
}

.guide-video-tip-list {
  margin: 18px 0 0;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
  padding: 18px 20px 18px 38px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--guide-border);
  color: var(--guide-muted);
}

.guide-video-tip-list li + li {
  margin-top: 8px;
}

.guide-inline-link {
  display: inline-block;
  color: var(--guide-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color 0.18s ease;
}

.guide-inline-link:hover {
  color: var(--guide-accent);
}

.guide-meta-chip,
.guide-quick-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--guide-border);
  font-size: 14px;
  font-weight: 600;
  color: #374151;
}

.guide-section {
  margin-top: 28px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 28px;
  background: var(--guide-surface);
  box-shadow: 0 20px 48px rgba(148, 163, 184, 0.12);
}

.guide-section h2 {
  margin: 0 0 10px;
  font-size: 28px;
  line-height: 1.25;
}

.guide-section-intro {
  margin: 0 0 24px;
  color: var(--guide-muted);
}

.guide-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.guide-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 220px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 248, 0.92));
  border: 1px solid var(--guide-border);
  box-shadow: 0 16px 36px rgba(244, 63, 94, 0.08);
}

.guide-card-badge {
  display: inline-flex;
  width: fit-content;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(225, 29, 72, 0.08);
  color: var(--guide-accent);
  font-size: 12px;
  font-weight: 700;
}

.guide-card h3 {
  margin: 0;
  font-size: 23px;
  line-height: 1.2;
}

.guide-card p {
  margin: 0;
  color: var(--guide-muted);
  font-size: 15px;
}

.guide-card-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--guide-accent);
  font-weight: 700;
}

.guide-roadmap {
  display: grid;
  gap: 14px;
}

.guide-roadmap-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(239, 68, 68, 0.1);
}

.guide-roadmap-step {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #ef4444, #e11d48);
  color: #fff;
  font-weight: 800;
}

.guide-roadmap-item strong,
.guide-related-card strong,
.guide-check-item strong,
.guide-faq-item h3,
.guide-step-card h3,
.guide-scenario-card h3 {
  display: block;
  margin-bottom: 4px;
  font-size: 18px;
  line-height: 1.35;
}

.guide-roadmap-item p,
.guide-related-card p,
.guide-check-item p,
.guide-step-card p,
.guide-scenario-card p,
.guide-note-list li,
.guide-bullet-list li,
.guide-faq-item p,
.guide-support-box p {
  margin: 0;
  color: var(--guide-muted);
}

.guide-columns {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.guide-checklist {
  display: grid;
  gap: 14px;
}

.guide-check-item {
  padding: 18px 20px;
  border-radius: 20px;
  background: var(--guide-surface-strong);
  border: 1px solid rgba(239, 68, 68, 0.12);
}

.guide-check-item span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--guide-accent-soft);
  color: var(--guide-accent);
  font-size: 12px;
  font-weight: 700;
}

.guide-check-item .guide-bullet-list,
.guide-check-item .guide-note-list {
  margin-top: 14px;
}

.guide-warning {
  padding: 18px 20px;
  border-radius: 20px;
  background: linear-gradient(180deg, #fff7ed, #fffaf5);
  border: 1px solid rgba(249, 115, 22, 0.18);
}

.guide-warning strong {
  color: #c2410c;
}

.guide-bullet-list,
.guide-note-list {
  margin: 0;
  padding-left: 20px;
}

.guide-bullet-list li,
.guide-note-list li {
  margin-bottom: 10px;
}

.guide-steps-grid,
.guide-scenario-grid,
.guide-related-grid,
.guide-anchor-grid {
  display: grid;
  gap: 16px;
}

.guide-steps-grid,
.guide-scenario-grid,
.guide-related-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-step-card,
.guide-scenario-card,
.guide-related-card,
.guide-anchor-link,
.guide-support-box {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--guide-border);
}

.guide-step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, #ef4444, #fb7185);
  color: #fff;
  font-weight: 800;
}

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

.guide-anchor-link {
  display: block;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.guide-anchor-link:hover,
.guide-card:hover {
  transform: translateY(-2px);
  border-color: rgba(225, 29, 72, 0.26);
}

.guide-anchor-link strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
}

.guide-faq-list {
  display: grid;
  gap: 18px;
}

.guide-figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.guide-figure {
  margin: 0;
  padding: 16px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(239, 68, 68, 0.12);
}

.guide-figure img {
  display: block;
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(148, 163, 184, 0.14);
}

.guide-figure figcaption {
  margin-top: 14px;
  color: var(--guide-muted);
  font-size: 14px;
  line-height: 1.7;
}

.guide-figure figcaption strong {
  color: var(--guide-text);
}

.guide-faq-group + .guide-faq-group {
  margin-top: 22px;
}

.guide-faq-group h2 {
  scroll-margin-top: 24px;
}

.guide-faq-item {
  padding: 22px 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(239, 68, 68, 0.1);
}

.guide-faq-item h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.guide-related-actions,
.guide-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.guide-button,
.guide-button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
}

.guide-button {
  color: #fff;
  background: linear-gradient(135deg, #ef4444, #e11d48);
  box-shadow: 0 14px 28px rgba(225, 29, 72, 0.18);
}

.guide-button-secondary {
  color: var(--guide-accent);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(225, 29, 72, 0.18);
}

.guide-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--guide-muted);
  font-size: 14px;
  font-weight: 600;
}

.guide-breadcrumb span {
  opacity: 0.6;
}

.guide-breadcrumb a:hover {
  color: var(--guide-accent);
}

.guide-support-box strong {
  display: block;
  font-size: 22px;
  margin-bottom: 8px;
}

@media (max-width: 900px) {
  .guide-card-grid,
  .guide-columns,
  .guide-steps-grid,
  .guide-scenario-grid,
  .guide-related-grid,
  .guide-anchor-grid,
  .guide-figure-grid {
    grid-template-columns: 1fr;
  }

  .guide-shell {
    width: min(100% - 24px, 1120px);
    padding-top: 24px;
  }

  .guide-hero,
  .guide-article-hero,
  .guide-section {
    padding: 24px;
    border-radius: 24px;
  }

  .guide-video-preview-play {
    width: 68px;
    height: 68px;
    margin-top: -34px;
    margin-left: -34px;
  }
}