/* ============================================================
   个人作品集 v2 · 灰白高级简约风（艺术展览）
   风格参照：Canva 模板「灰白色高级简约风艺术展览作品集个人网站」
   设计 token（从模板页提取）：
     底色 #f2f2f2 · 面板 #e4e4e4 · 次级 #b2b2b2 · 正文 #686868
   字体：思源宋体（标题/正文）+ 思源黑体（代阿里巴巴普惠体）
        + Parisienne（手写点缀）+ Cormorant Garamond（Portfolio 大字）
   底纹：SVG 噪点（石膏质感）+ 大尺度灰色晕块
   ============================================================ */

:root {
  --bg: #f2f2f2;
  --panel: #e4e4e4;
  --soft: #ececec;
  --mid: #b2b2b2;
  --ink: #686868;
  --ink-strong: #3f3f3f;
  --card: #ffffff;
  --radius: 16px;
  --serif: 'Noto Serif SC', 'Source Han Serif SC', 'STZhongsong', 'STSong', 'SimSun', serif;
  --sans: 'Noto Sans SC', 'Alibaba PuHuiTi', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif);
  color: var(--ink);
  background: var(--bg);
  font-size: 15px;
  line-height: 2;
  -webkit-font-smoothing: antialiased;
}

/* 石膏质感噪点 + 柔和灰晕 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(42rem 30rem at 72% 16%, rgba(228, 228, 228, 0.65), transparent 62%),
    radial-gradient(50rem 40rem at 16% 82%, rgba(228, 228, 228, 0.55), transparent 62%),
    var(--bg);
}

svg { display: block; }

/* ============================== 顶栏 ============================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 4vw, 56px);
  background: rgba(242, 242, 242, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.search {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  min-width: 230px;
  padding: 7px 18px;
  border: 1px solid var(--mid);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  transition: box-shadow 0.3s ease;
}

.search:focus-within { box-shadow: 0 6px 20px rgba(120, 120, 120, 0.15); }

.search svg { width: 15px; height: 15px; color: var(--ink); }

.search input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.search input::placeholder { color: var(--mid); }

.search.no-hit { animation: shake 0.5s ease; }

@keyframes shake {
  25% { transform: translateX(-5px); }
  50% { transform: translateX(4px); }
  75% { transform: translateX(-2px); }
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: clamp(16px, 3vw, 44px);
}

.topnav a {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.topnav a:hover,
.topnav a.active { color: var(--ink-strong); }

/* ============================== 首屏 ============================== */

.hero {
  min-height: calc(100vh - 66px);
  max-width: 1366px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  padding: clamp(40px, 8vh, 90px) clamp(20px, 5vw, 64px) clamp(50px, 10vh, 110px);
}

.hero-copy { grid-column: 2; grid-row: 1; }

.hero-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(44px, 7.5vw, 88px);
  line-height: 1.35;
  letter-spacing: 0.06em;
  color: var(--ink-strong);
}

.hero-attr {
  margin-top: 16px;
  text-align: right;
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.hero-side { grid-column: 1; grid-row: 1; align-self: end; }

.hero-quote {
  max-width: 22em;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 0.04em;
}

.hero-display {
  font-family: var(--display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(56px, 8vw, 104px);
  line-height: 1;
  margin-top: clamp(28px, 6vh, 60px);
  color: #3d3d3d;
}

/* ============================== 通用区块 ============================== */

section[id] { scroll-margin-top: 86px; }

.section {
  max-width: 1366px;
  margin: 0 auto;
  padding: clamp(56px, 10vh, 110px) clamp(20px, 5vw, 64px);
}

.section-h {
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.1em;
  color: var(--ink-strong);
  margin-bottom: clamp(30px, 6vh, 56px);
}

.section-h .dash { color: var(--mid); font-weight: 400; }

.section-h.center { text-align: center; }

/* 装饰图形面板（替代模板中的画作图片位） */
.art-panel { margin: 0; }

.art {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 18px 50px rgba(120, 120, 120, 0.16);
}

.art-panel.tall .art { aspect-ratio: 4 / 5; object-fit: cover; }

.art-cap {
  margin-top: 10px;
  text-align: right;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mid);
}

/* ============================== 关于我 ============================== */

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.about-text p + p { margin-top: 14px; }

.about-list {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--panel);
  display: grid;
  gap: 10px;
}

.about-list div {
  display: flex;
  gap: 18px;
  align-items: baseline;
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: 0.05em;
}

.about-list b {
  flex: none;
  font-weight: 500;
  color: var(--ink-strong);
  letter-spacing: 0.14em;
}

/* ============================== 创作理念 ============================== */

.idea-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.idea-text p + p { margin-top: 14px; }

/* ============================== 在校档案 ============================== */

.banner { margin: 0 0 clamp(28px, 5vh, 48px); }

.banner .art { aspect-ratio: 5 / 1; min-height: 140px; }

.banner .art-cap { margin-right: 4px; }

.cards3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.6vw, 32px);
}

.info-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 32px);
  box-shadow: 0 14px 40px rgba(120, 120, 120, 0.12);
}

.info-card h3 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink-strong);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--panel);
}

.info-card ul {
  list-style: none;
  display: grid;
  gap: 10px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.info-card li { position: relative; padding-left: 16px; }

.info-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mid);
}

/* ============================== 联系方式 ============================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}

.contact-list {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.contact-list div {
  display: flex;
  gap: 16px;
  align-items: baseline;
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: 0.05em;
}

.contact-list b {
  flex: none;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-strong);
}

.contact-link {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--panel);
  word-break: break-all;
  transition: color 0.3s ease, border-color 0.3s ease;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: var(--ink-strong);
  border-color: var(--mid);
}

/* ============================== 页脚 ============================== */

.site-footer {
  max-width: 1366px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px) clamp(36px, 6vh, 60px);
  text-align: center;
}

.foot-line {
  height: 1px;
  background: var(--panel);
  margin-bottom: 20px;
}

.site-footer p {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--mid);
}

/* ============================== 滚动入场 ============================== */

/* 入场动画仅在 JS 可用时启用（html.js 由脚本添加） */
html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .search.no-hit { animation: none; }
}

/* ============================== 响应式 ============================== */

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { grid-column: 1; grid-row: auto; }
  .hero-side { grid-column: 1; grid-row: auto; align-self: start; }
  .hero-attr { text-align: left; }
  .about-grid,
  .idea-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .cards3 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  .search { min-width: 0; flex: 1 1 100%; order: 2; }
  .topnav { order: 1; flex: 1 1 100%; justify-content: center; gap: 14px 18px; }
  .topnav a { font-size: 13px; letter-spacing: 0.12em; }
  .hero-title { line-height: 1.5; }
}