/* ============================================
   JwHung · Editorial Minimalism
   设计基调：黑白灰 + 衬线标题 + 大量留白
   ============================================ */

:root {
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --gray: #777;
  --gray-light: #a8a8a8;
  --hairline: #e8e8e8;
  --bg: #ffffff;
  --font-serif: Georgia, 'Times New Roman', 'Songti SC', 'STSong', 'SimSun', serif;
  --font-sans: 'PingHei', 'PingFang SC', 'Helvetica Neue', 'Work Sans', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Base ---------- */

html {
  font-family: var(--font-sans);
  -webkit-text-size-adjust: 100%;
  background: var(--bg);
  color: var(--gray);
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 15px 0;
  font-weight: 400;
  color: var(--ink-soft);
}

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

p {
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.2px;
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

strong {
  color: var(--ink);
  font-weight: 500;
}

img {
  -webkit-user-drag: none;
}

::selection {
  background: var(--ink);
  color: #fff;
}

/* ---------- 滚动渐入（无 JS / 减弱动效时降级为直接可见） ---------- */

html.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html.js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 固定导航 ---------- */

.cd-auto-hide-header {
  position: fixed;
  z-index: 2000;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg);
  border-bottom: 1px solid transparent;
  transform: translateZ(0);
  will-change: transform;
  transition: transform 0.5s, border-color 0.3s;
}

.cd-auto-hide-header.is-hidden {
  transform: translateY(-100%);
}

.cd-auto-hide-header.is-scrolled {
  border-bottom-color: var(--hairline);
}

.header {
  margin: 0 auto;
  padding: 80px 0 0 0;
}

.an_nav {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  padding-bottom: 24px;
  overflow: hidden;
}

.introduce {
  float: left;
}

.introduce a {
  display: block;
}

.introduce h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 22px;
  letter-spacing: 0.5px;
  margin: 0 0 2px 0;
}

.introduce p {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gray-light);
}

.nav_links {
  float: right;
  padding-top: 14px;
}

.nav_links a {
  margin-left: 28px;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--ink-soft);
  padding: 4px 0;
  transition: color 0.25s;
}

.nav_links a:first-child {
  margin-left: 0;
}

.nav_links a:hover {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}

/* ---------- Hero（首页横幅） ---------- */

.hero {
  position: relative;
}

.hero img {
  width: 100%;
  display: block;
}

/* ---------- 技能刻度 ---------- */

.skills {
  text-align: center;
  padding: 100px 0 60px 0;
  overflow: hidden;
  max-width: 1400px;
  margin: 0 auto;
}

.skill-item {
  float: left;
  width: 25%;
}

.skill-item h3 {
  font-size: 12px;
  letter-spacing: 2px;
  font-weight: 400;
  margin-bottom: 14px;
  color: var(--gray);
}

.skill-meter {
  display: flex;
  gap: 5px;
  justify-content: center;
}

.skill-meter i {
  width: 22px;
  height: 2px;
  background: var(--hairline);
}

.skill-meter i.on {
  background: var(--ink);
}

/* ---------- Work 案例 ---------- */

.work {
  width: 100%;
  max-width: 1920px;
  padding-top: 60px;
  margin: 0 auto;
  text-align: center;
}

.work .item {
  padding-bottom: 120px;
}

.work .item .item-index {
  display: block;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--gray-light);
  margin-bottom: 10px;
}

.work .item .item-figure {
  margin: 0;
  overflow: hidden;
}

.work .item img {
  width: 1200px;
  max-width: 82%;
  margin: 10px 0;
  transition: transform 0.8s var(--ease-out);
}

.work .item .item-figure:hover img {
  transform: scale(1.015);
}

.work .item h3 {
  font-family: var(--font-serif);
  padding-top: 48px;
  margin: 0 0 8px 0;
  color: var(--ink);
  font-size: 20px;
  letter-spacing: 1px;
}

.work .item .item-desc {
  color: var(--gray-light);
  font-size: 13px;
}

.work .item .demo-link {
  margin-top: 22px;
}

.work .item .demo-link a {
  display: inline-block;
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 1.5px;
  padding: 9px 22px;
  border: 1px solid var(--ink);
  transition: background-color 0.3s, color 0.3s;
}

.work .item .demo-link a:hover {
  color: #fff;
  background-color: var(--ink);
}

/* ---------- 通用内容容器 ---------- */

.content {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 200px;
}

/* ---------- About 页 ---------- */

.about-wrap {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 220px 0 100px 0;
  display: flex;
  align-items: center;
  gap: 90px;
  min-height: 60vh;
}

.about-text {
  flex: 1 1 480px;
  max-width: 480px;
}

.about-name {
  font-family: var(--font-serif);
  font-size: 34px;
  letter-spacing: 1px;
  color: var(--ink);
  margin: 0 0 24px 0;
}

.about-text p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.about-text p a {
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
  transition: border-color 0.25s;
}

.about-text p a:hover {
  border-bottom-color: var(--ink);
}

.about-links {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
}

.about-links .links-label {
  display: block;
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 12px;
}

.about-links a {
  display: inline-block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-right: 18px;
  padding-bottom: 2px;
  transition: color 0.25s;
}

.about-links a:hover {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}

.about-image {
  flex: 1 1 45%;
}

.about-image img {
  width: 100%;
  display: block;
}

/* ---------- Photo 页 ---------- */

.photo-wrap {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding-top: 160px;
}

.photo-item {
  margin-bottom: 110px;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.photo-item.loaded {
  opacity: 1;
  transform: translateY(0);
}

.photo-item img {
  display: block;
  transition: transform 0.8s var(--ease-out);
}

.lazy-img {
  background: #f5f5f5;
  min-height: 200px;
}

.photo-item .photo-full {
  width: 100%;
}

.photo-grid {
  display: grid;
  gap: 12px;
  margin: 0 auto;
  width: 90%;
  max-width: 1400px;
  align-items: start;
}

.photo-grid img {
  width: 100%;
  height: auto;
}

.photo-grid.g2 { grid-template-columns: repeat(2, 1fr); }
.photo-grid.g3 { grid-template-columns: repeat(3, 1fr); }

.photo-grid.g4 { grid-template-columns: repeat(2, 1fr); }

.photo-grid.g5 { grid-template-columns: repeat(6, 1fr); }
.photo-grid.g5 img:nth-child(1),
.photo-grid.g5 img:nth-child(2) { grid-column: span 3; }
.photo-grid.g5 img:nth-child(n + 3) { grid-column: span 2; }

.photo-grid.g6,
.photo-grid.gmore { grid-template-columns: repeat(3, 1fr); }

.photo-item .photo-meta {
  padding-top: 44px;
}

.photo-item h4 {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gray-light);
  font-weight: 400;
  margin: 0 0 8px 0;
}

.photo-item h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--ink);
  margin: 0 0 6px 0;
}

.photo-item .photo-desc {
  color: var(--gray-light);
  font-size: 13px;
}

/* ---------- Links 友链 ---------- */

.links-wrap {
  width: 90%;
  max-width: 720px;
  margin: 0 auto;
  padding-top: 200px;
  min-height: 50vh;
}

.links-wrap > h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 26px;
  letter-spacing: 1px;
}

.links-wrap .links-sub {
  color: var(--gray-light);
  margin-bottom: 56px;
  font-size: 13px;
}

.links-grid {
  display: grid;
  gap: 20px;
}

.link-card {
  display: block;
  padding: 28px 32px;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.3s, transform 0.3s;
}

.link-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.link-card h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--ink);
  margin: 0 0 4px 0;
  letter-spacing: 0.5px;
}

.link-card .link-domain {
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 1px;
  display: block;
  margin-bottom: 10px;
}

.link-card p {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
}

/* ---------- Blog 列表 ---------- */

.blog {
  width: 90%;
  max-width: 720px;
  margin: 0 auto;
  padding-top: 200px;
  min-height: 50vh;
}

.blog > h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 26px;
  letter-spacing: 1px;
}

.blog .blog-sub {
  color: var(--gray-light);
  margin-bottom: 56px;
  font-size: 13px;
}

.blog article {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--hairline);
}

.blog article:last-child {
  border-bottom: none;
}

.blog article h2 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 6px;
}

.blog article h2 a {
  color: var(--ink);
  transition: opacity 0.25s;
}

.blog article h2 a:hover {
  opacity: 0.55;
}

.blog article time {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray-light);
}

.blog article .excerpt {
  margin-top: 12px;
  font-size: 14px;
  color: var(--gray);
  line-height: 1.8;
}

/* ---------- 博客正文 ---------- */

.post {
  width: 90%;
  max-width: 720px;
  margin: 0 auto;
  padding-top: 200px;
  min-height: 60vh;
}

.post h1 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 30px;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.post .meta {
  color: var(--gray-light);
  font-size: 12px;
  letter-spacing: 1.5px;
  margin-bottom: 48px;
}

.post .meta .tags {
  margin-left: 16px;
}

.post .meta .tags a {
  color: var(--gray-light);
  margin-right: 8px;
  transition: color 0.25s;
}

.post .meta .tags a:hover {
  color: var(--ink);
}

.post .article-content {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-soft);
}

.post .article-content p {
  margin-bottom: 24px;
  font-size: 15px;
  line-height: 2;
}

.post .article-content h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 22px;
  margin: 56px 0 18px 0;
}

.post .article-content h3 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-size: 18px;
  margin: 40px 0 12px 0;
}

.post .article-content img {
  max-width: 100%;
  margin: 24px 0;
}

.post .article-content a {
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
}

.post .article-content a:hover {
  border-bottom-color: var(--ink);
}

.post .article-content blockquote {
  margin: 32px 0;
  padding-left: 20px;
  border-left: 2px solid var(--ink);
  color: var(--gray);
}

.post .article-content code {
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 0.9em;
  background: #f5f5f5;
  padding: 2px 6px;
  border-radius: 3px;
}

/* ---------- WeChat 页 ---------- */

.wechat-wrap {
  padding-top: 220px;
  padding-bottom: 100px;
  text-align: center;
}

.wechat-wrap img {
  max-width: 300px;
  width: 60%;
  margin: 0 auto;
  display: block;
}

.wechat-wrap p {
  margin-top: 24px;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--gray-light);
}

/* ---------- 页脚 ---------- */

.footer {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 0 40px 0;
  border-top: 1px solid var(--hairline);
}

.footer .footer_nav > a {
  display: inline-block;
  padding: 0 12px;
  color: var(--gray-light);
  transition: color 0.25s;
}

.footer .footer_nav > a:hover {
  color: var(--ink);
}

.footer p {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--gray-light);
  margin: 16px 0;
}

.footer .to-top {
  cursor: pointer;
  color: var(--gray-light);
  transition: color 0.25s;
  background: none;
  border: none;
  padding: 0;
}

.footer .to-top:hover {
  color: var(--ink);
}

/* ---------- 响应式 ---------- */

@media screen and (max-width: 960px) {
  .header {
    padding: 48px 0 0 0;
  }

  .an_nav {
    text-align: center;
  }

  .introduce {
    float: none;
    margin-bottom: 8px;
  }

  .nav_links {
    float: none;
    padding-top: 6px;
  }

  .nav_links a {
    margin: 0 10px;
  }

  .content,
  .blog,
  .post {
    padding-top: 180px;
  }

  .skills {
    padding: 48px 0 32px 0;
  }

  .skill-item {
    width: 50%;
    padding-bottom: 28px;
  }

  .work .item {
    padding-bottom: 80px;
  }

  .work .item img {
    max-width: 100%;
    margin: 0;
  }

  .work .item h3 {
    padding-top: 32px;
  }

  .about-wrap {
    flex-direction: column-reverse;
    gap: 48px;
    padding: 180px 0 80px 0;
    min-height: 0;
  }

  .about-text {
    max-width: 100%;
  }

  .about-image {
    width: 100%;
  }

  .photo-wrap {
    padding-top: 180px;
  }

  .photo-item {
    margin-bottom: 72px;
  }

  .photo-grid.g2,
  .photo-grid.g3,
  .photo-grid.g4,
  .photo-grid.g6,
  .photo-grid.gmore {
    grid-template-columns: 1fr;
  }

  .photo-grid.g5 {
    grid-template-columns: 1fr;
  }

  .photo-grid.g5 img:nth-child(n) {
    grid-column: auto;
  }
}