:root {
  --ink: #202124;
  --muted: #5f6368;
  --line: #e8eaed;
  --paper: #fff;
  --soft: #f7f7f8;
  --purple: #8f63a8;
  --purple-soft: #f5eff8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #fafafa;
  font-family: "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px max(24px, calc((100vw - 1180px) / 2));
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  text-decoration: none;
}

.seal {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #fff;
  background: var(--purple);
  font-family: "Noto Serif SC", serif;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.main-nav a,
.nav-item > a {
  color: #3c4043;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

.main-nav a:hover,
.nav-item:hover > a { color: var(--purple); }

.nav-item {
  position: relative;
  padding: 18px 0;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  display: none;
  min-width: 230px;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(32,33,36,.13);
}

.dropdown a {
  display: block;
  padding: 18px 22px;
  color: #68707a;
  font-size: 16px;
  font-weight: 700;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.dropdown a:last-child { border-bottom: 0; }
.nav-item:hover .dropdown { display: block; }

main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(20px, 3vw, 40px) 96px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .82fr);
  gap: 58px;
  align-items: center;
  padding: 88px 0 72px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--purple);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 24px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(44px, 5.8vw, 78px);
  line-height: 1.08;
  font-weight: 650;
}

h2 {
  margin-bottom: 18px;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(30px, 3.5vw, 48px);
  line-height: 1.25;
}

h3 {
  margin-bottom: 12px;
  font-size: 24px;
  line-height: 1.35;
}

.lead,
.statement p,
.column-card p,
.post-row p,
.contact p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button,
.column-card a,
.post-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--purple);
  border-radius: 999px;
  padding: 12px 22px;
  color: #fff;
  background: var(--purple);
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  color: var(--purple);
  background: #fff;
  border-color: #ddcbe6;
}

.portrait {
  margin: 0;
}

.portrait img {
  display: block;
  width: 100%;
  height: 540px;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: 0 22px 52px rgba(32,33,36,.12);
}

.statement {
  max-width: 920px;
  margin: 0 auto;
  padding: 72px 0;
  text-align: center;
  border-top: 1px solid var(--line);
}

.columns {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 24px;
  padding: 18px 0 82px;
}

.column-card,
.side-panel,
.feed-column {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 6px 22px rgba(32,33,36,.045);
}

.column-card {
  padding: 32px;
}

.column-card.feature {
  background: linear-gradient(135deg, #fff 0%, var(--purple-soft) 100%);
}

.num {
  display: block;
  margin-bottom: 34px;
  color: var(--purple);
  font-weight: 800;
}

.column-card a {
  margin-top: 14px;
  padding: 10px 18px;
  color: var(--purple);
  background: #fff;
  border-color: #ddcbe6;
}

.latest-section {
  padding-bottom: 84px;
}

.section-head {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.post-row {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.post-row.large {
  padding-top: 34px;
}

.post-row img {
  width: 230px;
  height: 150px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.post-row a {
  white-space: nowrap;
  padding: 10px 18px;
}

.tag {
  margin-bottom: 10px;
  color: var(--purple);
  font-size: 13px;
  font-weight: 800;
}

.side-panel {
  padding: 30px;
}

.side-panel h2 {
  font-size: 26px;
}

.side-panel ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.9;
}

.image-text {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 42px;
  align-items: center;
  padding: 52px 0 86px;
  border-top: 1px solid var(--line);
}

.image-text img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.image-text p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.three-feeds {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding-bottom: 82px;
}

.feed-column {
  padding: 30px;
}

.feed-column h2 {
  font-size: 28px;
}

.feed-column a {
  display: block;
  padding: 16px 0;
  color: #303134;
  line-height: 1.6;
  text-decoration: none;
  border-top: 1px solid var(--line);
}

.feed-column a:hover { color: var(--purple); }

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 48px;
  background: var(--purple-soft);
  border: 1px solid #eadff0;
  border-radius: 4px;
}

.contact h2 {
  max-width: 760px;
  margin-bottom: 0;
}

.page-hero {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  max-width: 900px;
}

.page-hero .lead {
  max-width: 820px;
}

.subcat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 44px 0 84px;
}

.subcat-card {
  min-height: 300px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  text-decoration: none;
  box-shadow: 0 6px 22px rgba(32,33,36,.045);
}

.subcat-card:hover {
  border-color: #d8c4e2;
}

.subcat-card small {
  display: block;
  margin-bottom: 28px;
  color: var(--purple);
  font-weight: 800;
}

.subcat-card p {
  color: var(--muted);
  line-height: 1.85;
}

.archive-list {
  max-width: 1120px;
  padding: 52px 0 96px;
}

.archive-item {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.archive-item img {
  width: 220px;
  height: 140px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.archive-item h2 {
  margin-bottom: 10px;
  font-size: 26px;
}

.archive-item p {
  color: var(--muted);
  line-height: 1.85;
}

.archive-item a {
  color: var(--purple);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.premium-archive {
  display: grid;
  gap: 30px;
}

.archive-feature-card {
  display: grid;
  grid-template-columns: minmax(420px, .96fr) minmax(470px, 1.04fr);
  gap: clamp(34px, 3.8vw, 58px);
  align-items: start;
  padding: clamp(22px, 2.6vw, 34px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 20px 52px rgba(60, 64, 67, .07);
}

.archive-feature-media,
.archive-card-media {
  display: block;
  overflow: hidden;
  border-radius: 14px;
  background: #f3f4f6;
}

.archive-feature-media {
  aspect-ratio: 4 / 3;
  align-self: start;
}

.archive-feature-media img,
.archive-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 40px rgba(32,33,36,.11);
  transform-origin: center;
  transition: transform .34s cubic-bezier(.2,.8,.2,1), box-shadow .34s ease, filter .34s ease;
}

.archive-feature-media img {
  min-height: 0;
}

.archive-feature-card:hover img,
.archive-card:hover img {
  transform: translateY(-6px) scale(1.025);
  box-shadow: 0 28px 60px rgba(32,33,36,.17), 0 10px 24px rgba(124,77,146,.10);
  filter: saturate(1.06) contrast(1.04) brightness(1.02);
}

.archive-feature-content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  max-width: 680px;
  min-height: 0;
  padding: 8px 8px 8px 0;
}

.archive-feature-content h2 {
  margin: 10px 0 14px;
  font-size: clamp(32px, 2.8vw, 44px);
  line-height: 1.22;
  letter-spacing: 0;
}

.archive-feature-content h2 a,
.archive-card-body h2 a {
  color: var(--ink);
  text-decoration: none;
}

.archive-feature-content h2 a:hover,
.archive-card-body h2 a:hover {
  color: var(--purple);
}

.archive-feature-content p:not(.tag),
.archive-card-body p:not(.tag) {
  color: var(--muted);
  line-height: 1.85;
}

.archive-feature-content p:not(.tag) {
  max-width: 640px;
  font-size: 17px;
  line-height: 1.78;
}

.archive-feature-note {
  margin-top: 12px;
  padding: 13px 16px;
  color: #4b5563 !important;
  background: linear-gradient(135deg, #fbfafc 0%, #f6f2f8 100%);
  border-left: 3px solid var(--purple);
  border-radius: 12px;
  font-size: 16px !important;
  line-height: 1.75 !important;
}

.archive-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 14px;
}

.archive-meta-row span {
  padding: 7px 10px;
  color: #5f6368;
  background: #f7f4f9;
  border: 1px solid #eadff0;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

.archive-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.archive-card {
  display: grid;
  grid-template-rows: 240px 1fr;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(60, 64, 67, .07);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.archive-card:hover {
  transform: translateY(-4px);
  border-color: #dfcbe7;
  box-shadow: 0 18px 42px rgba(60, 64, 67, .10);
}

.archive-card-body {
  display: flex;
  flex-direction: column;
  padding: 26px;
}

.archive-card-body h2 {
  margin: 8px 0 12px;
  font-size: 25px;
  line-height: 1.36;
}

.archive-read {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-top: auto;
  color: var(--purple);
  font-weight: 900;
  text-decoration: none;
}

.archive-feature-content .archive-read {
  margin-top: 4px;
}

.archive-read::after {
  content: "→";
  transition: transform .2s ease;
}

.archive-read:hover::after {
  transform: translateX(4px);
}

.article-page {
  max-width: 980px;
  margin: 0 auto;
  padding-bottom: 96px;
}

.article-hero {
  padding: 72px 0 42px;
}

.article-hero img {
  width: 100%;
  height: 430px;
  margin-top: 34px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.article-body {
  max-width: 820px;
  margin: 0 auto;
}

.article-body p {
  color: #30343a;
  font-size: 18px;
  line-height: 2;
}

.article-body h2 {
  margin-top: 54px;
}

.article-body blockquote {
  margin: 42px 0;
  padding: 24px 28px;
  color: #3c4043;
  background: var(--purple-soft);
  border-left: 4px solid var(--purple);
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 21px;
  line-height: 1.8;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
  color: var(--muted);
  font-size: 14px;
}

.article-meta span {
  padding: 8px 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.premium-article .article-hero img,
.article-visual img,
.article-split img {
  box-shadow: 0 20px 48px rgba(32,33,36,.13);
  animation: imageFloat .9s ease both;
  transform-origin: center;
  transition: transform .34s cubic-bezier(.2,.8,.2,1), box-shadow .34s ease, filter .34s ease, border-color .34s ease;
  will-change: transform, box-shadow, filter;
  cursor: zoom-in;
}

.premium-article .article-hero img:hover,
.article-visual:hover img,
.article-split:hover img {
  transform: translateY(-9px) scale(1.018);
  border-color: rgba(124, 77, 146, .28);
  box-shadow: 0 30px 70px rgba(32,33,36,.18), 0 10px 28px rgba(124,77,146,.12);
  filter: saturate(1.06) contrast(1.04) brightness(1.02);
  animation: imageHoverPop .56s cubic-bezier(.2,.8,.2,1) both;
}

.article-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 44px;
}

.article-toc a {
  padding: 16px 18px;
  color: #303134;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
}

.article-toc a:hover {
  color: var(--purple);
  border-color: #d8c4e2;
}

.article-highlight,
.article-checklist,
.faq-block {
  margin: 44px auto;
  padding: 30px;
  max-width: 820px;
  background: var(--purple-soft);
  border: 1px solid #eadff0;
  border-radius: 4px;
}

.article-highlight strong {
  display: block;
  margin-bottom: 10px;
  color: var(--purple);
}

.article-visual {
  margin: 42px 0;
  perspective: 900px;
}

.article-visual img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.article-visual figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.float-right {
  float: right;
  width: min(42%, 360px);
  margin: 8px 0 22px 32px;
}

.float-left {
  float: left;
  width: min(42%, 360px);
  margin: 8px 32px 22px 0;
}

.article-split {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  gap: 34px;
  align-items: center;
  margin: 48px 0;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.article-split .article-visual {
  margin: 0;
}

.article-checklist ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: #30343a;
  line-height: 1.9;
}

.faq-block details {
  padding: 18px 0;
  border-top: 1px solid #e3d8e8;
}

.faq-block summary {
  cursor: pointer;
  font-weight: 800;
}

.article-related {
  max-width: 900px;
  margin: 54px auto 0;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.article-related h2 {
  margin: 6px 0 22px;
  font-size: 26px;
}

.article-related > div {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.article-related a {
  display: grid;
  gap: 10px;
  min-height: 150px;
  padding: 22px;
  color: var(--ink);
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 12px 28px rgba(60, 64, 67, .07);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.article-related a:hover {
  transform: translateY(-3px);
  border-color: #d9c2e3;
  box-shadow: 0 18px 38px rgba(60, 64, 67, .1);
}

.article-related span {
  color: var(--purple);
  font-size: 13px;
  font-weight: 800;
}

.article-related strong {
  font-size: 18px;
  line-height: 1.55;
}

@keyframes imageFloat {
  from { opacity: 0; transform: translateY(18px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes imageHoverPop {
  0% { transform: translateY(0) scale(1); }
  45% { transform: translateY(-13px) scale(1.022); }
  100% { transform: translateY(-9px) scale(1.018); }
}

@media (max-width: 900px) {
  .site-header,
  .contact {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .columns,
  .image-text,
  .three-feeds,
  .subcat-grid,
  .archive-item,
  .archive-feature-card,
  .archive-card-grid {
    grid-template-columns: 1fr;
  }

  .portrait img {
    height: 420px;
  }

  .post-row {
    grid-template-columns: 1fr;
  }

  .post-row img,
  .archive-item img {
    width: 100%;
    height: 220px;
  }

  .archive-feature-media img {
    min-height: 260px;
  }

  .archive-feature-content {
    padding: 8px 4px 6px;
  }

  .archive-feature-content h2 {
    font-size: 29px;
  }

  .archive-card {
    grid-template-rows: 220px 1fr;
  }

  .nav-item {
    padding: 0;
  }

  .dropdown {
    position: static;
    display: block;
    margin-top: 10px;
    min-width: 100%;
    transform: none;
    box-shadow: none;
  }

  .article-toc,
  .article-split,
  .article-related > div {
    grid-template-columns: 1fr;
  }

  .float-left,
  .float-right {
    float: none;
    width: 100%;
    margin: 36px 0;
  }
}