:root {
  --bg: #fdf8f3;
  --surface: #ffffff;
  --ink: #1a2e2a;
  --muted: #5a706b;
  --line: #e2ede9;
  --primary: #1a8c6e;
  --primary-dark: #0f6350;
  --primary-light: #e6f5f0;
  --accent: #ff7043;
  --warm: #fff8f0;
  --shadow: 0 8px 32px rgba(15,60,45,0.10);
  --page-max: 1100px;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.7;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
h1,h2,h3,p { margin-top: 0; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px max(16px, calc((100vw - var(--page-max)) / 2 + 20px));
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--primary-dark);
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 3px;
  background: #fff;
}

.btn-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.2s;
}
.btn-header:hover { background: var(--primary-dark); }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  transition: background 0.2s, transform 0.1s;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s;
}
.btn-outline:hover { background: var(--primary-light); }

/* ── Inner width ── */
.inner {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Section base ── */
.section {
  padding: 60px 0;
}
.section-label {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 10px;
  color: var(--ink);
}
.section-sub {
  color: var(--muted);
  font-size: 16px;
  max-width: 560px;
  margin-bottom: 36px;
}

/* ── Hero ── */
.hero {
  background: var(--warm);
  border-bottom: 1px solid var(--line);
  padding: 60px 0 50px;
}
.hero-inner {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 40px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: #fff3e0;
  color: #bf4f00;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 14px;
  color: var(--ink);
}
.hero h1 em {
  font-style: normal;
  color: var(--primary);
}
.hero-lead {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 480px;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.trust-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}
.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}
.hero-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ── Nav shortcuts ── */
.nav-shortcuts {
  position: sticky;
  top: 67px;
  z-index: 20;
  background: var(--primary-dark);
  border-bottom: none;
  backdrop-filter: none;
  box-shadow: 0 2px 8px rgba(10,40,30,0.18);
}
.nav-shortcuts-inner {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-shortcuts-inner::-webkit-scrollbar { display: none; }
.nav-shortcuts a {
  display: inline-flex;
  align-items: center;
  padding: 13px 16px;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  letter-spacing: 0.02em;
  transition: all 0.2s;
}
.nav-shortcuts a:hover {
  color: #fff;
  border-bottom-color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.08);
}

/* ── Observe cards ── */
.observe-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  -webkit-column-gap: 14px;
}
.observe-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform 0.2s;
}
.observe-card:hover { transform: translateY(-3px); }
.observe-num {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.observe-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.observe-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

/* ── Photo guide steps ── */
.photo-guide {
  background: var(--warm);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.67% + 20px);
  right: calc(16.67% + 20px);
  height: 2px;
  background: var(--line);
  z-index: 0;
}
.step-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}
.step-tip {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

/* ── Gallery ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gallery-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.gallery-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.gallery-card-body {
  padding: 14px 16px;
}
.gallery-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.gallery-card p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

/* ── Article list ── */
#artList {
  display: grid !important;
  grid-template-columns: 1fr;
  gap: 14px !important;
}
.art-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 156px;
  gap: 14px;
  align-items: stretch;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(15,60,45,0.05);
  transition: transform 0.16s, box-shadow 0.16s, border-color 0.16s;
}
.art-card:hover {
  transform: translateY(-2px);
  border-color: rgba(26,140,110,0.28);
  box-shadow: 0 12px 28px rgba(15,60,45,0.09);
}
.art-rank {
  font-size: 18px;
  font-weight: 900;
  color: #cfe4dc;
  line-height: 1.2;
  padding-top: 2px;
}
.art-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.art-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 7px;
}
.art-pinned,
.art-hot {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.4;
  vertical-align: middle;
}
.art-pinned {
  color: #7b3c00;
  background: #fff0d6;
}
.art-hot {
  color: #993c1d;
  background: #faece7;
}
.art-title {
  color: var(--ink);
  font-size: 18px;
  font-weight: 850;
  line-height: 1.42;
  margin: 0 0 8px;
  letter-spacing: 0;
}
.art-summary {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.art-date {
  color: #7a8a86;
  font-size: 12px;
  margin-top: auto;
}
.art-thumb {
  width: 156px;
  height: 88px;
  border-radius: 10px;
  object-fit: cover;
  align-self: center;
  border: 1px solid var(--line);
  background: var(--warm);
  flex-shrink: 0;
}
.art-thumb-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.art-empty {
  text-align: center;
  padding: 40px 0;
  color: var(--muted);
}

/* ── Reviews ── */
.reviews-section {
  background: var(--primary-light);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.review-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.review-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.review-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}
.review-tag {
  font-size: 12px;
  color: var(--muted);
}
.review-stars {
  color: #f59e0b;
  font-size: 13px;
  margin-bottom: 8px;
}
.review-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}
.review-bubble {
  position: relative;
  background: #f0faf6;
  border-radius: 0 12px 12px 12px;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--ink);
  margin-top: 4px;
  line-height: 1.6;
}

/* ── Video ── */
.video-card {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.video-card video {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 8px;
  background: #102c2e;
}
.video-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.video-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ── FAQ ── */
.faq-list {
  display: grid;
  gap: 10px;
  max-width: 760px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  background: none;
  border: none;
  text-align: left;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s;
}
.faq-q:hover { background: var(--primary-light); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}
.faq-item.open .faq-a { display: block; }

/* ── Record section ── */
.record-card {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
}
.record-copy { align-self: center; }
.record-copy h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.record-copy p { font-size: 14px; color: var(--muted); margin: 0; }
.record-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.record-figure {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: #edf6f0;
  border: 1px solid var(--line);
}
.record-figure img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.record-label {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 8px;
  background: rgba(15,99,80,0.88);
  color: #fff;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
}
.notice {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}

/* ── Contact / WeChat CTA ── */
.contact-section {
  background: var(--primary);
  padding: 60px 0;
}
.contact-inner {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}
.contact-copy h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.contact-copy p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  margin-bottom: 20px;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  gap: 8px;
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: rgba(255,255,255,0.9);
}
.contact-list li::before {
  content: '✓';
  width: 20px;
  height: 20px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.btn-wechat-big {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: #fff;
  color: var(--primary-dark);
  border: none;
  border-radius: 50px;
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.15s;
}
.btn-wechat-big:hover { transform: scale(1.03); }

.qr-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  min-width: 200px;
}
.qr-box img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  margin: 0 auto 10px;
  border-radius: 8px;
}
.qr-id {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-dark);
}
.qr-hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* ── Footer ── */
footer {
  background: #0d2420;
  padding: 24px 20px;
  text-align: center;
}
footer p {
  max-width: 800px;
  margin: 0 auto;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

/* ── Modal ── */
.wechat-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.wechat-modal.open { display: flex; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,30,25,0.65);
}
.modal-card {
  position: relative;
  z-index: 1;
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  width: min(400px, 100%);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 26px;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
}
.modal-card h2 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.modal-card p { font-size: 14px; color: var(--muted); margin-bottom: 0; }
.modal-card img {
  width: min(220px, 80vw);
  margin: 16px auto;
  border-radius: 10px;
}
.modal-wechat-id {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 8px 0 4px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-inner,
  .video-card,
  .contact-inner,
  .record-card {
    grid-template-columns: 1fr;
  }
  .hero-image { max-width: 360px; margin: 0 auto; }
  .observe-grid,
  .steps-grid,
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
  .reviews-grid { grid-template-columns: 1fr; }
}



/* ── Mobile ── */
@media (max-width: 600px) {

  /* 基础间距 */
  .section { padding: 36px 0; }
  .hero { padding: 32px 0 28px; }
  .inner { padding: 0 16px; }

  /* Header */
  .site-header { padding: 12px 16px; }
  .brand { font-size: 16px; gap: 8px; }
  .brand-logo { width: 40px; height: 40px; }
  .btn-header { padding: 8px 14px; font-size: 13px; }

  /* 导航快捷栏 */
  .nav-shortcuts-inner { padding: 0 8px; gap: 0; }
  .nav-shortcuts a { padding: 11px 11px; font-size: 12px; letter-spacing: 0; }

  /* Hero：隐藏插画，聚焦文字 */
  .hero-inner { gap: 24px; }
  .hero-image { display: none; }
  .hero h1 { font-size: 28px; margin-bottom: 12px; }
  .hero-lead { font-size: 15px; margin-bottom: 22px; }
  .hero-badge { font-size: 12px; margin-bottom: 14px; }
  .hero-trust { gap: 12px; margin-top: 16px; }
  .trust-item { font-size: 12px; }

  /* 按钮全宽 */
  .btn-primary { padding: 14px 24px; font-size: 15px; width: 100%; justify-content: center; }
  .btn-outline { padding: 12px 20px; font-size: 14px; width: 100%; justify-content: center; }
  /* Hero内按钮保持并排 */
  .hero-copy > div .btn-primary,
  .hero-copy > div .btn-outline { width: auto; flex: 1; min-width: 0; }

  /* 章节标题 */
  .section-title { font-size: 22px; }
  .section-sub { font-size: 14px; margin-bottom: 24px; }

  /* 观察要点：2列 */
  .observe-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .observe-card { padding: 16px; }
  .observe-card h3 { font-size: 15px; }
  .observe-card p { font-size: 13px; }
  .observe-num { width: 30px; height: 30px; font-size: 13px; border-radius: 8px; }

  /* 拍照步骤：横向卡片（微信WebView兼容） */
  .steps-grid { grid-template-columns: 1fr; gap: 12px; }
  .step-card { display: -webkit-box; display: flex; -webkit-box-align: start; align-items: flex-start; gap: 14px; text-align: left; padding: 18px 16px; }
  .step-icon { width: 42px; height: 42px; min-width: 42px; font-size: 18px; flex-shrink: 0; margin: 0; }
  .step-body { -webkit-box-flex: 1; flex: 1; min-width: 0; }
  .step-body h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; white-space: normal; word-break: break-all; }
  .step-body p { font-size: 13px; margin: 0; }
  .step-tip { display: inline-block; margin-top: 8px; }

  /* 图片参考：1列 */
  .gallery-grid { grid-template-columns: 1fr; gap: 12px; }
  .gallery-card img { aspect-ratio: 16/9; }

  /* 用户反馈：1列 */
  .reviews-grid { grid-template-columns: 1fr; gap: 12px; }
  .review-card { padding: 16px; }
  .review-bubble { font-size: 13px; }

  /* 文章列表：手机卡片 */
  #articles .section-sub { margin-bottom: 18px; }
  #artFilterBar {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto;
    gap: 8px !important;
    padding: 0 0 4px;
    margin: 0 -16px 16px !important;
    padding-left: 16px;
    scrollbar-width: none;
  }
  #artFilterBar::-webkit-scrollbar { display: none; }
  #artFilterBar button {
    flex: 0 0 auto;
    min-height: 34px;
  }
  #artList {
    gap: 12px !important;
  }
  .art-card {
    grid-template-columns: 1fr 104px;
    gap: 12px;
    padding: 13px;
    border-radius: 12px;
  }
  .art-rank {
    display: none;
  }
  .art-main {
    min-height: 96px;
  }
  .art-meta {
    font-size: 11px;
    margin-bottom: 6px;
  }
  .art-title {
    font-size: 16px;
    line-height: 1.45;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .art-summary {
    font-size: 13px;
    line-height: 1.55;
    -webkit-line-clamp: 2;
    margin-bottom: 8px;
  }
  .art-date {
    font-size: 11px;
  }
  .art-thumb {
    width: 104px;
    height: 59px;
    border-radius: 9px;
  }
  .art-thumb-fallback {
    font-size: 24px;
  }

  /* 观察记录 */
  .record-card { padding: 16px; gap: 14px; }
  .record-images { grid-template-columns: 1fr 1fr; gap: 8px; }
  .record-copy h3 { font-size: 16px; }
  .record-copy p { font-size: 13px; }

  /* 视频 */
  .video-card { padding: 16px; gap: 16px; }
  .video-card h3 { font-size: 17px; }

  /* FAQ */
  .faq-q { font-size: 14px; padding: 16px; }
  .faq-a { font-size: 13px; padding: 0 16px 16px; }

  /* 联系区（绿底） */
  .contact-section { padding: 40px 0; }
  .contact-inner { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .contact-copy h2 { font-size: 22px; }
  .contact-copy p { font-size: 14px; }
  .contact-list { text-align: left; display: inline-grid; }
  .contact-list li { font-size: 14px; }
  .btn-wechat-big { width: 100%; justify-content: center; padding: 15px 24px; font-size: 16px; }
  .qr-box { max-width: 200px; margin: 0 auto; padding: 16px; }
  .qr-box img { width: 140px; height: 140px; }

  /* 弹窗 */
  .modal-card { padding: 24px 20px; }
  .modal-card h2 { font-size: 18px; }
}