/* ============================================
   YAO HAOLAN — 姚浩澜 艺术家个人网站
   设计系统：极简画廊 · 暖白 · 陶土青铜
   ============================================ */

:root {
  /* 色彩系统 */
  --bg: #FAF9F6;            /* 暖白画廊底色 */
  --bg-elevated: #FFFFFF;
  --ink: #1A1917;           /* 深墨 */
  --ink-soft: #55524D;      /* 次级文字 */
  --ink-faint: #8C8880;     /* 更淡文字 */
  --line: #E7E4DD;          /* 细边框 */
  --line-strong: #D5D1C8;
  --accent: #9A7B4F;        /* 陶土青铜强调色 */
  --accent-soft: #C4AE8C;
  --sold: #B0402E;          /* 售出标记 */
  --success: #4A7A5A;

  /* 字体 */
  --font-display: "Quicksand", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Helvetica Neue", sans-serif;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;
  --space-7: 96px;

  /* 圆角 */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  /* 其他 */
  --max-width: 1280px;
  --header-height: 72px;
  --shadow-sm: 0 1px 3px rgba(26,25,23,0.06);
  --shadow-md: 0 4px 16px rgba(26,25,23,0.10);
  --shadow-lg: 0 12px 40px rgba(26,25,23,0.14);
}

/* ---------- 重置 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 洋流背景画布 */
.flow-bg-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.site-header,
.site-main,
.site-footer {
  position: relative;
  z-index: 2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.18s ease;
}

a:hover {
  opacity: 0.65;
}

img {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo .logo-cn {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.35em;
  color: var(--ink-soft);
  margin-top: -2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.main-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}

.main-nav a:hover {
  color: var(--ink);
  opacity: 1;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.social-icons {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.social-icons a {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  transition: all 0.18s ease;
}

.social-icons a:hover {
  border-color: var(--ink);
  opacity: 1;
}

.social-icons svg {
  width: 16px;
  height: 16px;
  fill: var(--ink-soft);
}

.cart-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 6px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  transition: all 0.18s ease;
}

.cart-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
  opacity: 1;
}

.cart-count {
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  padding: 0 5px;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: relative;
  transition: all 0.25s ease;
}

.menu-toggle span::before { position: absolute; top: -6px; }
.menu-toggle span::after { position: absolute; top: 6px; }

/* ---------- 主内容区 ---------- */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) var(--space-7);
  min-height: calc(100vh - var(--header-height) - 200px);
}

/* 页头 */
.page-head {
  margin-bottom: var(--space-5);
}

.page-head h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2);
}

.page-head p {
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 560px;
}

/* ---------- 作品网格（首页/作品集） ---------- */
.artwork-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.artwork-item {
  position: relative;
  cursor: pointer;
}

.artwork-figure {
  position: relative;
  overflow: hidden;
  background: #EDEAE3;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
}

.artwork-figure img,
.artwork-figure .placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.artwork-item:hover .artwork-figure img,
.artwork-item:hover .artwork-figure .placeholder {
  transform: scale(1.03);
}

/* 占位图 */
.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--ink-faint);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.placeholder .ph-icon {
  font-size: 2rem;
  opacity: 0.5;
}

/* 作品状态标记 */
.status-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.92);
  color: var(--ink);
}

.status-badge.sold {
  background: var(--sold);
  color: #fff;
}

.status-badge.available {
  background: rgba(255,255,255,0.92);
  color: var(--ink);
}

.artwork-meta {
  padding: var(--space-3) 2px 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
}

.artwork-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.artwork-meta .artwork-sub {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 2px;
}

.artwork-price {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.artwork-price.sold-price {
  color: var(--ink-faint);
  text-decoration: line-through;
}

/* ---------- 筛选栏 ---------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.filter-btn {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.20);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.18s ease;
}

.filter-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.filter-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* ---------- 作品详情弹窗 ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(26,25,23,0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fadeIn 0.2s ease;
}

.modal-overlay.open {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  max-width: 880px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-media {
  background: #EDEAE3;
  min-height: 320px;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.media-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  max-height: 70vh;
  position: relative;
}

.media-stage img,
.media-stage video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  max-height: 70vh;
}

.media-stage video {
  background: #000;
}

.media-empty {
  color: var(--ink-faint);
  padding: var(--space-5);
}

.media-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  font-size: 1.6rem;
  line-height: 1;
  display: grid;
  place-items: center;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  transition: all 0.18s ease;
}

.media-nav:hover {
  background: #fff;
  opacity: 1;
}

.media-prev { left: 12px; }
.media-next { right: 12px; }

.media-counter {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 12px;
  z-index: 10;
}

.media-thumbs {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  overflow-x: auto;
  background: rgba(255,255,255,0.5);
  border-top: 1px solid rgba(0,0,0,0.06);
}

.media-thumbs .thumb {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  background: #ddd;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  padding: 0;
}

.media-thumbs .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-thumbs .thumb.active {
  border-color: var(--accent);
}

.modal-meta-row {
  display: flex;
  gap: 12px;
  padding: 5px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}

.modal-meta-row .meta-k {
  flex-shrink: 0;
  min-width: 64px;
  color: var(--ink-faint);
  font-weight: 600;
}

.modal-meta-row .meta-v {
  color: var(--ink-soft);
}

.sold-flag {
  display: inline-block;
  background: var(--sold);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.modal-en {
  font-family: var(--font-display);
  color: var(--ink-faint);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}

.modal-info {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  z-index: 210;
}

.modal-info h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.modal-meta {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-bottom: var(--space-4);
}

.modal-desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: var(--space-5);
  flex: 1;
}

.modal-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
  margin-bottom: var(--space-3);
}

.modal-price {
  font-size: 1.2rem;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  transition: all 0.18s ease;
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent);
  opacity: 1;
}

.btn-outline {
  border: 1px solid var(--ink);
  color: var(--ink);
}

.btn-outline:hover {
  background: var(--ink);
  color: #fff;
  opacity: 1;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-6) var(--space-4);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
}

.footer-meta {
  font-size: 0.82rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
}

.footer-nav {
  display: flex;
  gap: var(--space-4);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* ---------- 购物车抽屉 ---------- */
.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 400px;
  max-width: 100vw;
  background: var(--bg-elevated);
  z-index: 300;
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-drawer-head {
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-drawer-head h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.cart-empty {
  text-align: center;
  color: var(--ink-faint);
  padding: var(--space-6) var(--space-3);
}

.cart-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--line);
}

.cart-item-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: #EDEAE3;
  flex-shrink: 0;
  overflow: hidden;
}

.cart-item-thumb img,
.cart-item-thumb .placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-info {
  flex: 1;
}

.cart-item-info h3 {
  font-size: 0.9rem;
  font-weight: 600;
}

.cart-item-info .price {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 4px;
}

.cart-item-remove {
  color: var(--ink-faint);
  font-size: 0.8rem;
  text-decoration: underline;
}

.cart-drawer-foot {
  padding: var(--space-4);
  border-top: 1px solid var(--line);
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: var(--space-3);
  font-size: 1.05rem;
}

.cart-checkout {
  width: 100%;
}

/* ---------- 关于/FAQ/联系 页面 ---------- */
.prose {
  max-width: 680px;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--space-5);
  border-radius: var(--radius-md);
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin: var(--space-5) 0 var(--space-3);
}

.prose p {
  color: var(--ink-soft);
  margin-bottom: var(--space-3);
}

.prose-list {
  margin: 0 0 var(--space-3);
  padding-left: 0;
}

.prose-list li {
  color: var(--ink-soft);
  padding: 6px 0 6px 20px;
  position: relative;
  font-size: 0.95rem;
}

.prose-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent-soft);
}

.faq-item {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0 var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
}

.faq-q {
  width: 100%;
  text-align: left;
  padding: var(--space-4) 0;
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.faq-q::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--ink-faint);
  transition: transform 0.2s ease;
}

.faq-item.open .faq-q::after {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.faq-item.open .faq-a {
  max-height: 300px;
}

.faq-a-inner {
  padding: 0 0 var(--space-4);
}

.contact-form {
  max-width: 560px;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--space-5);
  border-radius: var(--radius-md);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--bg-elevated);
  color: var(--ink);
  transition: border-color 0.18s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* ---------- Coming soon 卡片 ---------- */
.coming-soon-card .artwork-figure {
  position: relative;
  overflow: hidden;
}

.texture-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #ff6b6b, #ffa94d, #ffd43b, #69db7c, #4dabf7, #b197fc, #f783ac, #ff6b6b
  );
  background-size: 400% 400%;
  animation: textureShift 16s ease-in-out infinite;
  filter: saturate(1.1);
}

.texture-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.08) 0, rgba(255,255,255,0.08) 2px, transparent 2px, transparent 12px),
    repeating-linear-gradient(-45deg, rgba(0,0,0,0.05) 0, rgba(0,0,0,0.05) 2px, transparent 2px, transparent 16px);
  mix-blend-mode: overlay;
}

@keyframes textureShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.coming-soon-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.coming-soon-text {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-shadow: 0 2px 14px rgba(0,0,0,0.35);
  white-space: nowrap;
}

/* ---------- Toast 提示 ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: #fff;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  opacity: 0;
  transition: all 0.25s ease;
  z-index: 400;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .artwork-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .modal {
    grid-template-columns: 1fr;
  }
  .modal-media {
    min-height: 240px;
  }
}

@media (max-width: 640px) {
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: grid;
  }
  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg);
    padding: var(--space-4);
    border-bottom: 1px solid var(--line);
    gap: var(--space-3);
  }
  .artwork-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .header-inner {
    padding: 0 var(--space-3);
  }
  .cart-drawer {
    width: 100%;
  }
  .social-icons {
    display: none;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}