/* 糖心vlog 29 — 主栏 + 充实右栏 · 全宽栅格（解决侧轨站右侧留白） */
:root {
  --ag-ink: #0c1222;
  --ag-muted: #5c6578;
  --ag-bg: #f4f6fb;
  --ag-surface: #ffffff;
  --ag-line: rgba(12, 18, 34, 0.08);
  --ag-blue: #2563eb;
  --ag-blue-d: #1d4ed8;
  --ag-coral: #f97316;
  --ag-mint: #10b981;
  --ag-shell: 1280px;
  --ag-r: 18px;
  --ag-font: "Outfit", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ag-serif: "Fraunces", ui-serif, Georgia, "Songti SC", serif;
  --ag-sh: 0 4px 24px rgba(12, 18, 34, 0.06);
  --ag-sh2: 0 20px 50px rgba(37, 99, 235, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--ag-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ag-ink);
  background: var(--ag-bg);
  min-height: 100vh;
}

a {
  color: var(--ag-blue-d);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
}

.ag-skip {
  position: absolute;
  left: -9999px;
  background: var(--ag-blue);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 300;
  font-weight: 700;
}
.ag-skip:focus {
  left: 12px;
  top: 12px;
}

/* 顶栏：全宽底 + 内容限宽 */
.ag-top {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--ag-line);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.ag-top-in {
  width: min(100% - 40px, var(--ag-shell));
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
}

.ag-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ag-ink);
  text-decoration: none;
  font-weight: 700;
}
.ag-brand:hover {
  text-decoration: none;
  color: var(--ag-blue-d);
}

.ag-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--ag-blue), #6366f1);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: var(--ag-sh2);
}

.ag-brand span.txt {
  font-family: var(--ag-serif);
  font-size: 1.12rem;
}

.ag-brand small {
  display: block;
  font-size: 0.65rem;
  color: var(--ag-muted);
  font-weight: 600;
  margin-top: 2px;
}

.ag-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .ag-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }
}

.ag-nav a {
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ag-muted);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--ag-line);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.ag-nav a:hover {
  color: var(--ag-blue-d);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.1);
  text-decoration: none;
}

.ag-nav a.is-on {
  background: linear-gradient(135deg, var(--ag-blue), #4f46e5);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--ag-sh2);
}

/* 页面外壳：全站同宽 */
.ag-shell {
  width: min(100% - 40px, var(--ag-shell));
  margin-inline: auto;
}

/* ========== Hero：左右填满，无单侧留白 ========== */
.ag-hero {
  padding: 36px 0 8px;
}

.ag-hero-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
  align-items: stretch;
  min-height: 0;
}

@media (min-width: 900px) {
  .ag-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    min-height: 380px;
  }
}

.ag-hero-copy {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: var(--ag-r);
  padding: 32px 32px 36px;
  box-shadow: var(--ag-sh);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ag-k {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--ag-coral);
  text-transform: uppercase;
  margin: 0 0 12px;
}

.ag-hero-copy h1 {
  margin: 0 0 16px;
  font-family: var(--ag-serif);
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  line-height: 1.12;
  font-weight: 700;
}

.ag-dek {
  margin: 0 0 24px;
  color: var(--ag-muted);
  font-size: 0.95rem;
  max-width: 36em;
}

.ag-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ag-btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.82rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.ag-btn-p {
  background: linear-gradient(135deg, var(--ag-blue), #4f46e5);
  color: #fff;
  box-shadow: var(--ag-sh2);
}
.ag-btn-p:hover {
  transform: translateY(-2px);
  text-decoration: none;
  color: #fff;
}

.ag-btn-g {
  background: #fff;
  color: var(--ag-blue-d);
  border: 1px solid var(--ag-line);
}
.ag-btn-g:hover {
  transform: translateY(-2px);
  border-color: var(--ag-blue);
  text-decoration: none;
}

.ag-hero-visual {
  position: relative;
  border-radius: var(--ag-r);
  overflow: hidden;
  border: 1px solid var(--ag-line);
  box-shadow: var(--ag-sh);
  min-height: 280px;
}

@media (min-width: 900px) {
  .ag-hero-visual {
    min-height: 0;
  }
}

.ag-hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  border-radius: 0;
}

@media (min-width: 900px) {
  .ag-hero-visual img {
    min-height: 100%;
    aspect-ratio: auto;
  }
}

.ag-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), transparent 45%, rgba(249, 115, 22, 0.08));
  pointer-events: none;
}

.ag-float {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  z-index: 2;
}

.ag-chip {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: var(--ag-ink);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* ========== 主布局：左主栏 + 右栏（充实） ========== */
.ag-layout {
  display: grid;
  gap: 28px;
  padding: 28px 0 48px;
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .ag-layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .ag-layout {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

/* 右栏：多块内容 + 装饰，杜绝空白 */
.ag-aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

@media (min-width: 1024px) {
  .ag-aside {
    position: sticky;
    top: 88px;
  }
}

.ag-aside-card {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: var(--ag-r);
  padding: 20px 20px 22px;
  box-shadow: var(--ag-sh);
}

.ag-aside-card h2 {
  margin: 0 0 14px;
  font-family: var(--ag-serif);
  font-size: 1.02rem;
  font-weight: 700;
}

.ag-aside-card--accent {
  background: linear-gradient(160deg, #1e3a8a 0%, #312e81 55%, #4c1d95 100%);
  color: #e0e7ff;
  border: none;
  box-shadow: var(--ag-sh2);
}

.ag-aside-card--accent h2 {
  color: #fff;
}

.ag-aside-card--accent p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.6;
  opacity: 0.92;
}

.ag-mini-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ag-mini-list a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f8fafc;
  color: var(--ag-ink);
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color 0.15s, background 0.15s;
}

.ag-mini-list a:hover {
  background: #eff6ff;
  border-color: rgba(37, 99, 235, 0.2);
  text-decoration: none;
  color: var(--ag-blue-d);
}

.ag-mini-list .ic {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--ag-blue), #818cf8);
  color: #fff;
  font-size: 0.75rem;
  display: grid;
  place-items: center;
  font-weight: 800;
}

.ag-stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.ag-stat {
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  text-align: center;
}

.ag-stat b {
  display: block;
  font-family: var(--ag-serif);
  font-size: 1.35rem;
  color: #fff;
}

.ag-stat span {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.75;
}

.ag-strip {
  display: flex;
  gap: 6px;
  margin-top: 14px;
}

.ag-strip span {
  flex: 1;
  height: 6px;
  border-radius: 999px;
}

.ag-strip span:nth-child(1) {
  background: #60a5fa;
}
.ag-strip span:nth-child(2) {
  background: #a78bfa;
}
.ag-strip span:nth-child(3) {
  background: #fb923c;
}
.ag-strip span:nth-child(4) {
  background: #34d399;
}

/* 主栏 */
.ag-main {
  min-width: 0;
}

.ag-panel {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: var(--ag-r);
  padding: 28px 28px 30px;
  margin-bottom: 24px;
  box-shadow: var(--ag-sh);
}

.ag-panel h2 {
  margin: 0 0 12px;
  font-family: var(--ag-serif);
  font-size: 1.32rem;
}

.ag-sub {
  margin: 0 0 18px;
  padding: 12px 16px;
  background: linear-gradient(90deg, #eff6ff, #fff7ed);
  border-radius: 12px;
  font-size: 0.88rem;
  color: var(--ag-muted);
  border-left: 4px solid var(--ag-blue);
}

.ag-prose p {
  margin: 0 0 1em;
  color: #3d4a5c;
  font-size: 0.93rem;
}

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

.ag-prose h3 {
  margin: 1.3em 0 0.5em;
  font-family: var(--ag-serif);
  font-size: 1.06rem;
}

.ag-prose h3:first-child {
  margin-top: 0;
}

.ag-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.ag-tags span {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 6px 11px;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--ag-blue-d);
  border: 1px solid #bfdbfe;
}

/* FAQ */
.ag-faq {
  margin-bottom: 24px;
}

.ag-faq h2 {
  font-family: var(--ag-serif);
  font-size: 1.12rem;
  margin: 0 0 12px;
}

.ag-faq details {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.ag-faq summary {
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  list-style: none;
}
.ag-faq summary::-webkit-details-marker {
  display: none;
}

.ag-faq details p {
  margin: 10px 0 0;
  font-size: 0.84rem;
  color: var(--ag-muted);
}

/* 全宽特色条（在主栏内横跨视觉） */
.ag-band {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .ag-band {
    grid-template-columns: repeat(4, 1fr);
  }
}

.ag-band-item {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: 14px;
  padding: 16px 14px;
  text-align: center;
  box-shadow: var(--ag-sh);
}

.ag-band-item strong {
  display: block;
  font-family: var(--ag-serif);
  font-size: 1.05rem;
  margin-bottom: 4px;
  color: var(--ag-blue-d);
}

.ag-band-item span {
  font-size: 0.72rem;
  color: var(--ag-muted);
  line-height: 1.4;
}

/* 卡片栅格：主栏内全宽 */
.ag-sec-title {
  font-family: var(--ag-serif);
  font-size: 1.08rem;
  margin: 0 0 6px;
}

.ag-sec-note {
  margin: 0 0 16px;
  font-size: 0.84rem;
  color: var(--ag-muted);
}

.ag-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .ag-grid.g5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .ag-grid.g5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .ag-grid.g5 {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 560px) {
  .ag-grid.g6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .ag-grid.g6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ag-tile {
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--ag-sh);
}

.ag-tile:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.12);
}

.ag-tile a {
  display: block;
  color: inherit;
  text-decoration: none;
}
.ag-tile a:hover {
  text-decoration: none;
  color: inherit;
}

.ag-tile img {
  border-radius: 0;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.ag-tile-bd {
  padding: 14px 16px 16px;
}

.ag-tile h3 {
  margin: 0 0 6px;
  font-family: var(--ag-serif);
  font-size: 0.92rem;
}

.ag-tile p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ag-muted);
}

/* 内页 */
.ag-crumb {
  font-size: 0.82rem;
  color: var(--ag-muted);
  margin: 0 0 12px;
}

.ag-h1 {
  margin: 0 0 10px;
  font-family: var(--ag-serif);
  font-size: clamp(1.2rem, 2.4vw, 1.48rem);
}

.ag-lead {
  margin: 0 0 18px;
  color: var(--ag-muted);
  font-size: 0.88rem;
}

.ag-cover {
  margin: 0 0 20px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--ag-line);
  box-shadow: var(--ag-sh);
}

.ag-cover img {
  border-radius: 0;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.ag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ag-list a {
  display: block;
  padding: 16px 18px;
  background: var(--ag-surface);
  border: 1px solid var(--ag-line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--ag-ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ag-list a:hover {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 8px 28px rgba(37, 99, 235, 0.08);
  text-decoration: none;
}

.ag-list strong {
  display: block;
  font-family: var(--ag-serif);
  font-size: 0.92rem;
  margin-bottom: 4px;
}

.ag-list span {
  font-size: 0.82rem;
  color: var(--ag-muted);
}

.ag-tip {
  margin-top: 20px;
  padding: 14px 16px;
  font-size: 0.82rem;
  color: #3d4a5c;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 12px;
}

.ag-prose code {
  font-size: 0.88em;
  background: #f1f5f9;
  padding: 0.12em 0.35em;
  border-radius: 4px;
}

.ag-foot {
  text-align: center;
  padding: 28px 16px 40px;
  font-size: 0.76rem;
  color: var(--ag-muted);
}

.ag-foot strong {
  color: var(--ag-blue-d);
}

.ag-nav a:focus-visible,
.ag-btn:focus-visible,
.ag-brand:focus-visible,
.ag-mini-list a:focus-visible {
  outline: 2px solid var(--ag-coral);
  outline-offset: 2px;
}