/* ========== 设计令牌与主题（浅底近白扁平 + 深夜黑白） ========== */
:root {
  color-scheme: light;
  --radius: 10px;
  --radius-lg: 16px;
  --transition: 0.22s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --sidebar-left-w: 240px;
  --header-h: 52px;
  --header-sub-h: 0;
  --hero-search-btn-fg: #ffffff;

  /* 品牌与文本 */
  --color-primary: #0d9488;
  --color-primary-hover: #0f766e;
  --color-bg: #fafbfb;
  --color-bg-alt: #f4f5f5;
  --color-surface: #ffffff;
  --color-text: #0c1222;
  --color-text-muted: #5c6b7a;
  --color-border: rgba(15, 23, 42, 0.055);
  --logo-hover-footer: #2dd4bf;

  --color-footer: #0f1f1c;
  --color-footer-dark: #0a1512;
  --color-footer-banner: var(--color-primary);
  --color-footer-text: #b5c9c2;
  --color-footer-text-dim: #718c82;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 18px rgba(15, 23, 42, 0.06);

  /* 页面与组件表面（近白、弱立体） */
  --surface-page-radial: #ffffff;
  --surface-page-end: #fcfcfc;
  --surface-header: rgba(255, 255, 255, 0.92);
  --surface-header-scrim: saturate(1.2) blur(12px);
  --surface-header-line: rgba(15, 23, 42, 0.05);
  --surface-nav-hero-a: #ffffff;
  --surface-nav-hero-b: #fafafa;
  --surface-big-search: #ffffff;
  --border-big-search: rgba(15, 23, 42, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 18%, transparent);
  --shadow-search-bar: 0 1px 4px rgba(15, 23, 42, 0.04);
  --surface-modal: #ffffff;
  --border-modal: rgba(15, 23, 42, 0.07);
  --shadow-modal: 0 8px 28px rgba(15, 23, 42, 0.07);
  --nav-cat-bg: #ffffff;
  --nav-cat-border: rgba(15, 23, 42, 0.08);
  --nav-cat-hover-bg: color-mix(in srgb, var(--color-primary) 5%, var(--color-surface));
  --nav-subcat-fg: #334155;
  --nav-subcat-hover-bg: rgba(250, 250, 250, 0.95);
  --nav-subcat-active-bg: #ffffff;
  --surface-user-card: #ffffff;
  --surface-user-header-a: #fafafa;
  --surface-user-header-b: #fafafa;
  --surface-user-link-pill: #f3f4f5;
  --surface-tool-sm-a: #ffffff;
  --surface-tool-sm-b: #fafafa;
  --surface-sidebar: #f7f8f8;
  --hero-leading-bg: #f0f1f3;
  --theme-switcher-bg: rgba(255, 255, 255, 0.95);
  --theme-switcher-border: rgba(15, 23, 42, 0.06);
  --theme-switcher-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  --transition-theme: 0.48s;
}

/* 霓光紫 */
:root[data-theme="violet"] {
  --color-primary: #7c6cf5;
  --color-primary-hover: #6d5ef0;
  --color-bg: #fbfbff;
  --color-bg-alt: #f5f4fc;
  --color-surface: #ffffff;
  --color-text: #14122a;
  --color-text-muted: #64608a;
  --color-border: rgba(99, 91, 168, 0.07);
  --logo-hover-footer: #a5b4fc;
  --surface-page-end: #fcfcfe;
  --ring-search: color-mix(in srgb, var(--color-primary) 16%, transparent);
  --shadow-search-bar: 0 1px 4px rgba(99, 91, 168, 0.05);
  --surface-user-header-a: #fafafe;
  --surface-user-header-b: #fafafe;
  --surface-user-link-pill: #f3f2fa;
  --surface-tool-sm-b: #fafafe;
  --surface-sidebar: #f6f5fc;
  --hero-leading-bg: #f0f0f5;
}

/* 日落橙 */
:root[data-theme="sunset"] {
  --color-primary: #ea580c;
  --color-primary-hover: #c2410c;
  --color-bg: #fdfcfa;
  --color-bg-alt: #f8f6f4;
  --color-surface: #ffffff;
  --color-text: #1c1410;
  --color-text-muted: #7a6258;
  --color-border: rgba(180, 83, 9, 0.07);
  --logo-hover-footer: #fb923c;
  --surface-page-end: #fdfcfb;
  --ring-search: color-mix(in srgb, var(--color-primary) 16%, transparent);
  --shadow-search-bar: 0 1px 4px rgba(234, 88, 12, 0.05);
  --surface-user-header-a: #faf9f8;
  --surface-user-header-b: #faf9f8;
  --surface-user-link-pill: #f5f3f1;
  --surface-tool-sm-b: #faf9f8;
  --surface-sidebar: #f8f6f3;
  --hero-leading-bg: #f1f0ef;
}

/* 海盐蓝 */
:root[data-theme="ocean"] {
  --color-primary: #0284c7;
  --color-primary-hover: #0369a1;
  --color-bg: #fafcfd;
  --color-bg-alt: #f3f8fb;
  --color-surface: #ffffff;
  --color-text: #0c1620;
  --color-text-muted: #547286;
  --color-border: rgba(2, 132, 199, 0.07);
  --logo-hover-footer: #38bdf8;
  --surface-page-end: #fbfcfd;
  --ring-search: color-mix(in srgb, var(--color-primary) 16%, transparent);
  --shadow-search-bar: 0 1px 4px rgba(2, 132, 199, 0.05);
  --surface-user-header-a: #f8fafb;
  --surface-user-header-b: #f8fafb;
  --surface-user-link-pill: #f0f4f7;
  --surface-tool-sm-b: #f8fafb;
  --surface-sidebar: #f2f7fa;
  --hero-leading-bg: #eef1f3;
}

/* 暖纸护眼 */
:root[data-theme="parchment"] {
  --color-primary: #a67c52;
  --color-primary-hover: #8f6844;
  --color-bg: #fbfaf8;
  --color-bg-alt: #f5f3ef;
  --color-surface: #fffefb;
  --color-text: #3a342c;
  --color-text-muted: #6f675e;
  --color-border: rgba(90, 74, 58, 0.06);
  --color-footer: #2a2620;
  --color-footer-dark: #1f1c18;
  --color-footer-text: #c9bfb2;
  --color-footer-text-dim: #8a8075;
  --color-footer-banner: #8b6914;
  --logo-hover-footer: #d4a574;
  --surface-page-radial: #fffefb;
  --surface-page-end: #fcfaf7;
  --surface-header: rgba(255, 254, 252, 0.95);
  --surface-nav-hero-a: #fffefb;
  --surface-nav-hero-b: #faf9f6;
  --surface-big-search: #fffefb;
  --border-big-search: rgba(90, 74, 58, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fffefb;
  --nav-cat-bg: #fffefb;
  --nav-subcat-fg: #4a433a;
  --surface-user-card: #fffefb;
  --surface-user-header-a: #faf8f5;
  --surface-user-header-b: #faf8f5;
  --surface-user-link-pill: #f3f1ec;
  --surface-tool-sm-a: #fffefb;
  --surface-tool-sm-b: #faf8f5;
  --surface-sidebar: #f7f4ee;
  --hero-leading-bg: #eceae6;
}

/* 豆沙护眼 */
:root[data-theme="matcha"] {
  --color-primary: #5d7a62;
  --color-primary-hover: #4d664f;
  --color-bg: #f9faf9;
  --color-bg-alt: #f2f4f2;
  --color-surface: #fcfdfc;
  --color-text: #252b28;
  --color-text-muted: #5a635c;
  --color-border: rgba(60, 72, 62, 0.06);
  --color-footer: #1e2420;
  --color-footer-dark: #151a17;
  --color-footer-text: #b4c0b8;
  --color-footer-text-dim: #768278;
  --color-footer-banner: #4d664f;
  --logo-hover-footer: #7d9a82;
  --surface-page-radial: #fcfdfc;
  --surface-page-end: #f9faf9;
  --surface-header: rgba(252, 253, 252, 0.94);
  --surface-nav-hero-a: #fcfdfc;
  --surface-nav-hero-b: #f7f8f7;
  --surface-big-search: #fcfdfc;
  --border-big-search: rgba(60, 72, 62, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fcfdfc;
  --nav-cat-bg: #fcfdfc;
  --nav-subcat-fg: #3d4540;
  --surface-user-card: #fcfdfc;
  --surface-user-header-a: #f4f6f4;
  --surface-user-header-b: #f4f6f4;
  --surface-user-link-pill: #ecefec;
  --surface-tool-sm-a: #fcfdfc;
  --surface-tool-sm-b: #f4f6f4;
  --surface-sidebar: #f1f4f1;
  --hero-leading-bg: #e8ebe9;
}

/* 雾蓝护眼 */
:root[data-theme="mist-blue"] {
  --color-primary: #5c7a94;
  --color-primary-hover: #4b667e;
  --color-bg: #f8fafc;
  --color-bg-alt: #f0f4f8;
  --color-surface: #fcfdff;
  --color-text: #243244;
  --color-text-muted: #5a6e84;
  --color-border: rgba(72, 96, 122, 0.06);
  --color-footer: #1b2430;
  --color-footer-dark: #141c26;
  --color-footer-text: #b5c2cf;
  --color-footer-text-dim: #7f8d9a;
  --color-footer-banner: #4b667e;
  --logo-hover-footer: #8aa2bb;
  --surface-page-radial: #fcfdff;
  --surface-page-end: #f8fafc;
  --surface-header: rgba(252, 253, 255, 0.94);
  --surface-nav-hero-a: #fcfdff;
  --surface-nav-hero-b: #f5f8fb;
  --surface-big-search: #fcfdff;
  --border-big-search: rgba(72, 96, 122, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fcfdff;
  --nav-cat-bg: #fcfdff;
  --nav-subcat-fg: #34465c;
  --surface-user-card: #fcfdff;
  --surface-user-header-a: #f3f6fa;
  --surface-user-header-b: #f3f6fa;
  --surface-user-link-pill: #edf2f7;
  --surface-tool-sm-a: #fcfdff;
  --surface-tool-sm-b: #f3f6fa;
  --surface-sidebar: #f1f5f9;
  --hero-leading-bg: #e7edf4;
}

/* 玫瑰护眼 */
:root[data-theme="rose-milk"] {
  --color-primary: #9a6f7f;
  --color-primary-hover: #865f6d;
  --color-bg: #fdfafb;
  --color-bg-alt: #f8f2f5;
  --color-surface: #fffdfd;
  --color-text: #3b2d34;
  --color-text-muted: #75616a;
  --color-border: rgba(132, 98, 111, 0.06);
  --color-footer: #2a1f24;
  --color-footer-dark: #1f171b;
  --color-footer-text: #ccbfc6;
  --color-footer-text-dim: #8e7c85;
  --color-footer-banner: #865f6d;
  --logo-hover-footer: #c89eaf;
  --surface-page-radial: #fffefe;
  --surface-page-end: #fdfafb;
  --surface-header: rgba(255, 253, 253, 0.95);
  --surface-nav-hero-a: #fffdfd;
  --surface-nav-hero-b: #faf6f8;
  --surface-big-search: #fffdfd;
  --border-big-search: rgba(132, 98, 111, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fffdfd;
  --nav-cat-bg: #fffdfd;
  --nav-subcat-fg: #523f48;
  --surface-user-card: #fffdfd;
  --surface-user-header-a: #f9f4f6;
  --surface-user-header-b: #f9f4f6;
  --surface-user-link-pill: #f4ecef;
  --surface-tool-sm-a: #fffdfd;
  --surface-tool-sm-b: #f9f4f6;
  --surface-sidebar: #f8f1f4;
  --hero-leading-bg: #eee5e9;
}

/* 浅荷护眼 */
:root[data-theme="lotus"] {
  --color-primary: #5f8c7a;
  --color-primary-hover: #4e7768;
  --color-bg: #f9fcfb;
  --color-bg-alt: #f1f7f4;
  --color-surface: #fdfffe;
  --color-text: #22362f;
  --color-text-muted: #5b746a;
  --color-border: rgba(79, 111, 98, 0.06);
  --color-footer: #1b2a24;
  --color-footer-dark: #14201c;
  --color-footer-text: #b7c8c1;
  --color-footer-text-dim: #7f938a;
  --color-footer-banner: #4e7768;
  --logo-hover-footer: #86af9f;
  --surface-page-radial: #fdfffe;
  --surface-page-end: #f9fcfb;
  --surface-header: rgba(253, 255, 254, 0.95);
  --surface-nav-hero-a: #fdfffe;
  --surface-nav-hero-b: #f5faf8;
  --surface-big-search: #fdfffe;
  --border-big-search: rgba(79, 111, 98, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fdfffe;
  --nav-cat-bg: #fdfffe;
  --nav-subcat-fg: #3b564c;
  --surface-user-card: #fdfffe;
  --surface-user-header-a: #f3f8f5;
  --surface-user-header-b: #f3f8f5;
  --surface-user-link-pill: #ecf4f0;
  --surface-tool-sm-a: #fdfffe;
  --surface-tool-sm-b: #f3f8f5;
  --surface-sidebar: #eff6f2;
  --hero-leading-bg: #e7f0eb;
}

/* 燕麦护眼 */
:root[data-theme="oat"] {
  --color-primary: #927a58;
  --color-primary-hover: #7d684a;
  --color-bg: #fcfbf8;
  --color-bg-alt: #f6f4ef;
  --color-surface: #fffefb;
  --color-text: #3a3329;
  --color-text-muted: #71675a;
  --color-border: rgba(116, 96, 70, 0.06);
  --color-footer: #28231b;
  --color-footer-dark: #1e1a14;
  --color-footer-text: #c8c0b3;
  --color-footer-text-dim: #8b8172;
  --color-footer-banner: #7d684a;
  --logo-hover-footer: #bda482;
  --surface-page-radial: #fffefb;
  --surface-page-end: #fcfbf8;
  --surface-header: rgba(255, 254, 251, 0.95);
  --surface-nav-hero-a: #fffefb;
  --surface-nav-hero-b: #faf8f3;
  --surface-big-search: #fffefb;
  --border-big-search: rgba(116, 96, 70, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fffefb;
  --nav-cat-bg: #fffefb;
  --nav-subcat-fg: #4f4638;
  --surface-user-card: #fffefb;
  --surface-user-header-a: #f8f5ef;
  --surface-user-header-b: #f8f5ef;
  --surface-user-link-pill: #f2eee6;
  --surface-tool-sm-a: #fffefb;
  --surface-tool-sm-b: #f8f5ef;
  --surface-sidebar: #f5f1e8;
  --hero-leading-bg: #ebe7dd;
}

/* 薄雾护眼 */
:root[data-theme="fog-gray"] {
  --color-primary: #6f7a85;
  --color-primary-hover: #5f6973;
  --color-bg: #fafbfc;
  --color-bg-alt: #f3f5f7;
  --color-surface: #fdfefe;
  --color-text: #26313c;
  --color-text-muted: #5f6d7b;
  --color-border: rgba(79, 92, 107, 0.06);
  --color-footer: #202830;
  --color-footer-dark: #181f26;
  --color-footer-text: #bcc6cf;
  --color-footer-text-dim: #818d98;
  --color-footer-banner: #5f6973;
  --logo-hover-footer: #96a4b2;
  --surface-page-radial: #fdfefe;
  --surface-page-end: #fafbfc;
  --surface-header: rgba(253, 254, 254, 0.94);
  --surface-nav-hero-a: #fdfefe;
  --surface-nav-hero-b: #f6f8fa;
  --surface-big-search: #fdfefe;
  --border-big-search: rgba(79, 92, 107, 0.08);
  --ring-search: color-mix(in srgb, var(--color-primary) 14%, transparent);
  --surface-modal: #fdfefe;
  --nav-cat-bg: #fdfefe;
  --nav-subcat-fg: #3c4b58;
  --surface-user-card: #fdfefe;
  --surface-user-header-a: #f4f6f8;
  --surface-user-header-b: #f4f6f8;
  --surface-user-link-pill: #edf1f4;
  --surface-tool-sm-a: #fdfefe;
  --surface-tool-sm-b: #f4f6f8;
  --surface-sidebar: #f1f4f6;
  --hero-leading-bg: #e8edf1;
}

/* 深夜 · 黑白（无彩色强调） */
:root[data-theme="midnight"] {
  color-scheme: dark;
  --color-primary: #d4d4d4;
  --color-primary-hover: #f5f5f5;
  --hero-search-btn-fg: #0a0a0a;
  --color-bg: #0c0c0c;
  --color-bg-alt: #121212;
  --color-surface: #141414;
  --color-text: #e8e8e8;
  --color-text-muted: #a1a1a1;
  --color-border: rgba(255, 255, 255, 0.09);
  --logo-hover-footer: #ffffff;
  --color-footer: #050505;
  --color-footer-dark: #000000;
  --color-footer-text: #a3a3a3;
  --color-footer-text-dim: #737373;
  --color-footer-banner: #262626;
  --shadow-sm: 0 1px 0 rgba(255, 255, 255, 0.04);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  --surface-page-radial: #121212;
  --surface-page-end: #0a0a0a;
  --surface-header: rgba(10, 10, 10, 0.9);
  --surface-header-scrim: blur(12px);
  --surface-header-line: rgba(255, 255, 255, 0.06);
  --surface-nav-hero-a: #161616;
  --surface-nav-hero-b: #121212;
  --surface-big-search: #141414;
  --border-big-search: rgba(255, 255, 255, 0.1);
  --ring-search: rgba(255, 255, 255, 0.12);
  --shadow-search-bar: 0 1px 4px rgba(0, 0, 0, 0.5);
  --surface-modal: #1a1a1a;
  --border-modal: rgba(255, 255, 255, 0.1);
  --shadow-modal: 0 8px 32px rgba(0, 0, 0, 0.55);
  --nav-cat-bg: #1c1c1c;
  --nav-cat-border: rgba(255, 255, 255, 0.1);
  --nav-cat-hover-bg: rgba(255, 255, 255, 0.06);
  --nav-subcat-fg: #d4d4d4;
  --nav-subcat-hover-bg: rgba(255, 255, 255, 0.05);
  --nav-subcat-active-bg: rgba(255, 255, 255, 0.08);
  --surface-user-card: #141414;
  --surface-user-header-a: #181818;
  --surface-user-header-b: #181818;
  --surface-user-link-pill: #1c1c1c;
  --surface-tool-sm-a: #161616;
  --surface-tool-sm-b: #141414;
  --surface-sidebar: #111111;
  --hero-leading-bg: #262626;
  --theme-switcher-bg: rgba(28, 28, 28, 0.95);
  --theme-switcher-border: rgba(255, 255, 255, 0.1);
  --theme-switcher-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* 主题切换：全局柔和过渡 */
body,
.site-header,
.nav-hero,
.section,
.user-links-card,
.nav-search-block .big-search,
.big-search,
.search-engine-modal-card,
.theme-switcher,
.tool-card.small {
  transition:
    background var(--transition-theme, 0.45s) var(--ease-out-expo),
    background-color var(--transition-theme, 0.45s) var(--ease-out-expo),
    border-color 0.38s var(--ease-out-expo),
    box-shadow 0.42s var(--ease-out-expo),
    color 0.32s ease;
}

body.theme-flash {
  transition: none;
}

body.theme-flash::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 99998;
  pointer-events: none;
  background: radial-gradient(ellipse 100% 58% at 50% -8%, var(--color-primary), transparent 62%);
  opacity: 0;
  animation: theme-switch-glow 0.62s var(--ease-out-expo) forwards;
}

@keyframes theme-switch-glow {
  0% { opacity: 0; transform: scale(1.02); }
  22% { opacity: 0.14; }
  100% { opacity: 0; transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  body.theme-flash::after {
    animation: none;
    opacity: 0;
  }
  body,
  .site-header,
  .nav-hero,
  .section,
  .user-links-card,
  .nav-search-block .big-search,
  .big-search,
  .search-engine-modal-card,
  .theme-switcher,
  .tool-card.small {
    transition-duration: 0.01ms !important;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  background: linear-gradient(180deg, var(--surface-page-end) 0%, var(--color-bg) 55%, var(--color-bg-alt) 100%);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }
input { font-family: inherit; }

/* ========== 顶部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-header);
  backdrop-filter: var(--surface-header-scrim);
  -webkit-backdrop-filter: var(--surface-header-scrim);
  box-shadow: none;
}

/* 全站统一：与用户中心一致的导航栏样式 */
.site-header .header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 52px;
  padding: 12px 16px;
  max-width: 1600px;
  margin: 0 auto;
  background: transparent;
  border-bottom: 1px solid var(--surface-header-line);
  box-shadow: none;
}
.site-header .main-nav .nav-item-link {
  padding: 6px 12px;
  font-size: 13px;
}
.header-top-right {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 3;
}
.theme-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  width: 36px;
  border: 1px solid var(--theme-switcher-border);
  background: var(--theme-switcher-bg);
  border-radius: 999px;
  box-shadow: var(--theme-switcher-shadow);
  transition: border-color 0.28s var(--ease-out-expo), box-shadow 0.32s ease, transform 0.22s var(--ease-out-expo);
}
.theme-switcher:hover {
  border-color: color-mix(in srgb, var(--color-primary) 28%, var(--theme-switcher-border));
  box-shadow: var(--theme-switcher-shadow), 0 0 0 3px color-mix(in srgb, var(--color-primary) 12%, transparent);
}
.theme-switcher:focus-within {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--theme-switcher-border));
  box-shadow: var(--theme-switcher-shadow), 0 0 0 3px color-mix(in srgb, var(--color-primary) 16%, transparent);
}
.theme-switcher-icon {
  font-size: 15px;
  line-height: 1;
  opacity: 0.92;
  filter: saturate(1.05);
}
.theme-switcher-trigger {
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.theme-switcher-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 188px;
  max-height: min(70vh, 420px);
  overflow-y: auto;
  padding: 8px;
  border-radius: 14px;
  border: 1px solid var(--theme-switcher-border);
  background: var(--theme-switcher-bg);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}
.theme-switcher.is-open .theme-switcher-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.theme-switcher-option {
  width: 100%;
  display: block;
  text-align: left;
  padding: 9px 12px;
  border-radius: 10px;
  background: transparent;
  color: var(--color-text);
  font-size: 13px;
  line-height: 1.4;
  transition: background 0.18s ease, color 0.18s ease;
}
.theme-switcher-option:hover,
.theme-switcher-option.is-active {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}
:root[data-theme="midnight"] .theme-switcher {
  background: #151515;
  border-color: rgba(255, 255, 255, 0.18);
}
:root[data-theme="midnight"] .theme-switcher-icon {
  color: #f3f4f6;
  opacity: 1;
}
:root[data-theme="midnight"] .theme-switcher-trigger,
:root[data-theme="midnight"] .theme-switcher-option {
  color: #f9fafb;
}
:root[data-theme="midnight"] .theme-switcher-option:hover,
:root[data-theme="midnight"] .theme-switcher-option.is-active {
  background: rgba(255, 255, 255, 0.08);
}
.user-header-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  background: var(--color-primary);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
  position: relative;
  z-index: 4;
}
.user-header-menu-btn:hover {
  background: var(--color-primary-hover);
  transform: scale(1.05);
}
.user-header-menu-btn[aria-expanded="true"] { background: var(--color-primary-hover); }
.user-header-drawer {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15,23,42,.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  padding: 12px 20px 24px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.user-header-drawer[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}
.user-header-drawer-nav {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 12px 0;
  box-shadow: 0 16px 48px rgba(15,23,42,.15);
  max-width: 320px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.user-header-drawer-nav a {
  display: block;
  padding: 14px 20px;
  font-size: 15px;
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.user-header-drawer-nav a:hover {
  background: color-mix(in srgb, var(--color-primary) 9%, var(--color-surface));
  color: var(--color-primary);
}
.user-drawer-link--sub {
  padding-left: 32px;
  font-size: 14px;
  color: var(--color-text-muted);
}
body.user-drawer-open { overflow: hidden; }

.logo {
  flex-shrink: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
}
.logo:hover { color: var(--color-primary-hover); }

/* 头部 Logo：两行精致样式（不影响页脚 logo） */
.site-header .logo {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  min-width: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.08;
  color: color-mix(in srgb, var(--color-primary) 88%, #0f172a);
  text-shadow: none;
  transition: none;
}
.site-header .logo::after {
  content: "美妆人必备";
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.9em;
  line-height: 1.2;
  color: color-mix(in srgb, var(--color-text-muted) 92%, var(--color-primary));
  opacity: 0.9;
  white-space: nowrap;
  transition: none;
}
.site-header .logo:hover {
  color: color-mix(in srgb, var(--color-primary) 88%, #0f172a);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}
.nav-item-wrap {
  position: relative;
}
.nav-item-wrap:hover .nav-dropdown { opacity: 1; visibility: visible; }
.main-nav .nav-item-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius);
  white-space: nowrap;
  text-decoration: none;
}
.main-nav .nav-item-link:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}
.nav-arrow {
  font-size: 10px;
  margin-left: 2px;
  opacity: 0.7;
}
.main-nav .nav-tag {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 4px;
  font-weight: 500;
}
.main-nav .nav-tag.hot { background: #fff3e0; color: #e65100; }
.main-nav .nav-tag.new { background: #e8f5e9; color: #2e7d32; }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 140px;
  margin: 0;
  padding: 6px 0;
  list-style: none;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 200;
}
.nav-dropdown li { margin: 0; }
.nav-dropdown a {
  display: block;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--color-text);
  white-space: nowrap;
}
.nav-dropdown a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.header-user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-user a { font-size: 14px; }
.header-checkin-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
}
.btn-checkin {
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  border-radius: 50%;
  transition: transform var(--transition), opacity var(--transition);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-checkin:hover:not(.done) {
  transform: scale(1.15);
  opacity: 0.9;
}
.btn-checkin.done {
  cursor: default;
  opacity: 0.9;
}
.checkin-total {
  font-size: 12px;
  color: var(--color-text-muted);
  min-width: 18px;
}
.checkin-toast {
  position: fixed;
  left: 50%;
  top: 24px;
  transform: translateX(-50%);
  padding: 14px 24px;
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  border-radius: var(--radius-lg);
  font-size: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease, top 0.25s ease;
}
.checkin-toast.show {
  opacity: 1;
  visibility: visible;
  top: 28px;
}
.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: block;
  transition: background var(--transition), transform var(--transition);
}
.user-avatar:hover {
  background: var(--color-primary);
  transform: scale(1.05);
}

/* 主内容区顶部：导航标题 + 搜索 + 信息栏（居中、大气、精致） */
.nav-hero {
  margin-bottom: 36px;
  padding: 36px 24px 46px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(180deg, var(--surface-nav-hero-a) 0%, var(--surface-nav-hero-b) 100%);
  border-radius: 20px;
  border: 1px solid var(--color-border);
  box-shadow: none;
}
.nav-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-text);
  letter-spacing: 0.02em;
  line-height: 1.3;
}


/* 搜索区块容器：仅保留 big-search */
.nav-search-block {
  width: 100%;
  max-width: 980px;
  margin: 20px auto 0;
  text-align: left;
  padding: 0;
  position: relative;
}

/* 弹窗里的分类 */
.search-engine-modal .nav-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 10px;
}
.nav-cat {
  padding: 8px 18px;
  font-size: 13px;
  color: var(--color-text-muted);
  background: var(--nav-cat-bg);
  border: 1px solid var(--nav-cat-border);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform 0.2s var(--ease-out-expo);
  font-weight: 500;
}
.nav-cat:hover {
  background: var(--nav-cat-hover-bg);
  color: var(--color-primary);
  border-color: color-mix(in srgb, var(--color-primary) 32%, var(--nav-cat-border));
}
.nav-cat.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--color-primary) 35%, transparent);
}

/* 搜索框（中间） */
.nav-search-block .big-search {
  width: 100%;
  max-width: 100%;
  margin: 0;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border-big-search);
  background: var(--surface-big-search);
  box-shadow: var(--shadow-search-bar);
}
.nav-search-block .big-search:focus-within {
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--border-big-search));
  box-shadow: var(--shadow-search-bar), 0 0 0 3px var(--ring-search);
}

/* 弹窗里的引擎宫格 */
.search-engine-modal .nav-subcategories {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 12px;
  margin-top: 0;
  padding: 8px 6px;
}
.search-engine-modal[hidden] { display: none !important; }
.search-engine-modal {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  width: 100%;
  z-index: 120;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .2s ease, transform .2s ease;
  pointer-events: none;
}
.search-engine-modal.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.search-engine-modal-card {
  border-radius: 16px;
  border: 1px solid var(--border-modal);
  background: var(--surface-modal);
  box-shadow: var(--shadow-modal);
  padding: 10px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-subcat {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--nav-subcat-fg);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.18s ease;
  font-weight: 400;
  text-align: left;
}
.nav-subcat:hover {
  background: var(--nav-subcat-hover-bg);
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--color-primary) 15%, var(--color-border));
}
.nav-subcat.active {
  background: var(--nav-subcat-active-bg);
  border-color: color-mix(in srgb, var(--color-primary) 22%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 12%, transparent);
}
.nav-subcat-icon {
  width: 22px;
  height: 22px;
  min-width: 22px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  overflow: hidden;
}
.nav-subcat-icon--img {
  padding: 0;
  background: var(--color-surface) !important;
}
.nav-subcat-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.nav-subcat-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== 主布局 ========== */
.layout {
  display: flex;
  max-width: 1600px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-h) - 260px);
}

/* 左侧边栏 */
.sidebar-left {
  width: var(--sidebar-left-w);
  flex-shrink: 0;
  padding: 16px 0;
  border-right: 1px solid var(--color-border);
  background: var(--surface-sidebar);
  position: sticky;
  top: var(--header-h);
  align-self: flex-start;
  max-height: calc(100vh - var(--header-h) - 24px);
  overflow-y: auto;
}
.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-nav li { margin: 0; }
.sidebar-parent-row {
  display: flex;
  align-items: center;
}
.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-text);
  border-radius: 0 var(--radius) var(--radius) 0;
  border-left: 3px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.sidebar-main-link {
  flex: 1;
  min-width: 0;
}
.sidebar-parent-toggle {
  width: 24px;
  height: 24px;
  margin-right: 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: rgba(100, 116, 139, 0.75);
  font-size: 10px;
  opacity: 0.75;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), color var(--transition), border-color var(--transition), background var(--transition), opacity var(--transition);
}
.sidebar-parent-toggle:hover {
  color: rgba(15, 23, 42, 0.75);
  border-color: rgba(15, 23, 42, 0.08);
  background: rgba(15, 23, 42, 0.03);
  opacity: 1;
}
.sidebar-parent-item.is-open .sidebar-parent-toggle {
  transform: rotate(180deg);
  color: var(--color-primary);
  border-color: rgba(0, 0, 0, 0.06);
  background: rgba(0, 0, 0, 0.02);
  opacity: 0.92;
}
.sidebar-nav li a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}
.sidebar-parent-item.active .sidebar-main-link {
  background: color-mix(in srgb, var(--color-primary) 12%, var(--color-bg-alt));
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: 500;
}
.sidebar-nav .icon { font-size: 14px; flex-shrink: 0; }
.sidebar-nav .icon { font-size: 1em; }
.sidebar-subnav {
  list-style: none;
  margin: 4px 0 8px;
  padding: 0 0 0 16px;
}
.sidebar-subnav li a {
  padding: 8px 16px 8px 22px;
  font-size: 12px;
  color: var(--color-text-muted);
  border-left: 3px solid transparent;
}
.sidebar-subnav li a:hover {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 7%, var(--color-bg-alt));
}

/* 主内容区 */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 28px 22px 40px;
}

/* 区块通用 */
.section {
  margin-bottom: 40px;
  animation: fadeIn 0.4s ease;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 18px 18px 14px;
  box-shadow: none;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 20px;
  color: var(--color-text);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-head-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.section-head h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}
.section-head .section-subcats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: flex-start;
}
.section-head .section-subcat {
  font-size: 13px;
  color: var(--color-primary);
  padding: 4px 10px;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-primary) 5%, var(--color-surface));
  border: 1px solid var(--color-border);
  cursor: pointer;
}
.section-head .section-subcat:hover {
  background: color-mix(in srgb, var(--color-primary) 9%, var(--color-surface));
}
.section-head .section-subcat.is-active {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.section-links-panel[hidden] { display: none !important; }
/* 自定义网址板块 - 卡片 + 分类标签 + 链接网格 */
.section-user-links {
  margin-bottom: 20px;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}
/* 官方常用工具/趣站：仅卡片、无外层 section */
.user-links-card.home-official-shortcuts {
  margin-bottom: 20px;
}
.user-shortcuts-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 12px 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.user-links-card {
  background: var(--surface-user-card);
  border-radius: 12px;
  box-shadow: none;
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.user-links-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface-user-header-a);
  border-bottom: 1px solid var(--color-border);
}
.user-links-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.user-links-tab {
  padding: 6px 12px;
  font-size: 13px;
  color: #666;
  background: transparent;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.user-links-tab:hover {
  background: rgba(0,0,0,.05);
  color: var(--color-text);
}
.user-links-tab.is-active {
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
}
.user-links-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.user-links-btn-add {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--color-primary);
  background: rgba(24,144,255,.08);
  border-radius: 20px;
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}
.user-links-btn-add:hover {
  background: rgba(24,144,255,.15);
  color: var(--color-primary);
}
.user-links-body {
  padding: 10px 12px 12px;
}
.user-links-panel {
  display: none;
}
.user-links-panel.is-active {
  display: block;
}
.section-user-links .user-links-grid,
.user-links-card.home-official-shortcuts .user-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px 12px;
}
.user-link-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--surface-user-link-pill);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  font-size: 14px;
  transition: background .2s ease, border-color .2s ease;
}
.user-link-item:hover {
  background: var(--color-surface);
  border-color: var(--color-border);
}
.user-link-item-icon {
  width: 14px;
  height: 14px;
  min-width: 14px;
  min-height: 14px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
  flex-shrink: 0;
}
.user-link-item-icon--img {
  padding: 0;
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border);
}
.user-link-item-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.user-link-item-name {
  font-size: 13px;
  max-width: 10em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text);
}
.user-link-mini {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  text-decoration: none;
  color: var(--color-text);
  font-size: 14px;
  transition: background var(--transition);
}
.user-link-mini:hover {
  background: color-mix(in srgb, var(--color-primary) 11%, var(--color-bg-alt));
}
.user-link-mini-icon {
  width: 14px;
  height: 14px;
  min-width: 14px;
  min-height: 14px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #fff;
  overflow: hidden;
}
.user-link-mini-name {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.more {
  font-size: 13px;
  color: var(--color-primary);
}
.more:hover { text-decoration: underline; }

/* 主内容区大搜索框 */
.big-search {
  display: flex;
  align-items: stretch;
  min-height: 50px;
  max-width: 100%;
  border: 1px solid var(--border-big-search);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-big-search);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.big-search:focus-within {
  border-color: color-mix(in srgb, var(--color-primary) 42%, var(--border-big-search));
  box-shadow: 0 0 0 3px var(--ring-search);
}
.big-search .hero-search-leading {
  align-self: center;
  width: 30px;
  height: 30px;
  margin-left: 14px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #5b5bd6;
  font-size: 13px;
  background: var(--hero-leading-bg);
  flex-shrink: 0;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  z-index: 3;
  pointer-events: auto;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.big-search .hero-search-leading.is-image {
  background: transparent;
}
.big-search .hero-search-leading:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(15,23,42,.12);
}
.big-search .hero-search-leading img {
  width: 80%;
  height: 80%;
  object-fit: cover;  
  border-radius: 5px;
}
.big-search .hero-search-input,
.big-search input {
  align-self: center;
  flex: 1;
  height: 50px;
  padding: 0 14px;
  border: none;
  font-size: 15px;
  position: relative;
  z-index: 1;
  background: transparent;
  color: var(--color-text);
}
.big-search input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.85;
}
.big-search input:focus { outline: none; }
.big-search .search-btn {
  box-sizing: border-box;
  flex: 0 0 92px;
  align-self: stretch;
  min-height: 50px;
  height: auto;
  margin: 0;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--hero-search-btn-fg);
  border: none;
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.big-search .search-btn .hero-search-btn-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: block;
  color: inherit;
}
.big-search .search-btn:hover {
  background: var(--color-primary-hover);
  color: var(--hero-search-btn-fg);
}

/* 工具卡片网格 */
.tool-grid {
  display: grid;
  gap: 16px;
}
.tool-grid-6 { grid-template-columns: repeat(6, 1fr); }
.tool-grid-4 { grid-template-columns: repeat(4, 1fr); }
.tool-grid-wide { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 12px; }

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  text-align: center;
  box-shadow: none;
}
.tool-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 25%, var(--color-border));
  background: var(--color-surface);
}
/* 小卡片：左上 logo，右侧上产品名下介绍语，精致小巧 */
.tool-card.small {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 4px 12px;
  align-items: start;
  text-align: left;
  padding: 12px 14px;
  background: var(--surface-tool-sm-b);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  min-height: 0;
  box-shadow: none;
}
.tool-card.small:hover {
  background: var(--surface-tool-sm-a);
  border-color: var(--color-border);
}
.tool-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.tool-card.small .tool-icon {
  grid-column: 1;
  grid-row: 1 / -1;
  align-self: start;
  width: 26px;
  height: 26px;
  margin: 0;
  font-size: 11px;
  border-radius: 6px;
}
.tool-card:hover .tool-icon { transform: none; }
.tool-card.small:hover .tool-icon { transform: none; }
.tool-icon.amz {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  font-size: 11px;
  font-weight: 600;
}
.tool-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.3;
}
.tool-card.small .tool-name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.35;
  max-width: 10em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tool-desc {
  font-size: 12px;
  color: var(--color-text-muted);
}
.tool-card.small .tool-desc {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 12px;
  color: color-mix(in srgb, var(--color-text-muted) 72%, var(--color-surface));
  line-height: 1.4;
}
.tool-card.small .tool-icon-img {
  padding: 0;
  background: transparent !important;
}
.tool-card.small .tool-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: inherit;
}
.tool-tag {
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}
.tool-tag.new { background: #e8f5e9; color: #2e7d32; }
.tool-tag.ad { background: #fff3e0; color: #e65100; }
.tool-badge {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  font-weight: 600;
}
.tool-card .tool-badge:first-child + .tool-icon { margin-top: 0; }

.pagination-links {
  margin-top: 20px;
  display: flex;
  gap: 16px;
  font-size: 13px;
}
.pagination-links a {
  color: var(--color-primary);
}
.pagination-links a:hover { text-decoration: underline; }

/* 推广工具区特殊布局 */
.section-promo .promo-layout {
  display: flex;
  gap: 24px;
}
.promo-sidebar {
  width: 140px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.promo-sidebar a {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-text);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.promo-sidebar a:hover, .promo-sidebar a.active {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}
.promo-sidebar a.active { font-weight: 500; }
.promo-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px 20px;
}
.promo-grid a {
  font-size: 13px;
  color: var(--color-text);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.promo-grid a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}


/* ========== 页脚（更精致的两栏结构） ========== */
.site-footer {
  margin-top: 56px;
  background: linear-gradient(180deg, var(--color-footer) 0%, var(--color-footer-dark) 100%);
  color: var(--color-footer-text);
  border-top: 1px solid color-mix(in srgb, var(--color-primary) 35%, transparent);
}
.footer-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  background: transparent;
  color: #f8fafc;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-bottom: 1px solid color-mix(in srgb, var(--color-footer-text) 18%, transparent);
}
.footer-banner a {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  color: #f8fafc;
  font-size: 12px;
  border: 1px solid color-mix(in srgb, var(--color-footer-text) 24%, transparent);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.footer-banner a:hover {
  color: #ffffff;
  border-color: color-mix(in srgb, var(--color-primary) 55%, var(--color-footer-text));
  background: color-mix(in srgb, var(--color-primary) 14%, transparent);
  text-decoration: none;
}
.footer-banner .footer-collect-hint {
  gap: 8px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-primary) 24%, #ffffff 76%) 0%, color-mix(in srgb, var(--color-primary) 14%, #ffffff 86%) 100%);
  color: #0f172a;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.88);
}
.footer-collect-hint .hint-prefix,
.footer-collect-hint .hint-suffix {
  white-space: nowrap;
}
.footer-collect-hint .hint-keys {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.footer-collect-hint .hint-plus {
  color: color-mix(in srgb, #0f172a 78%, var(--color-primary));
  font-weight: 700;
}
.footer-collect-hint kbd {
  min-width: 34px;
  height: 24px;
  padding: 0 9px;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--color-primary) 50%, #e2e8f0);
  background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%);
  color: #1e293b;
  font: 600 12px/22px "Segoe UI", "PingFang SC", sans-serif;
  text-align: center;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.95);
}
:root[data-theme="midnight"] .footer-banner .footer-collect-hint {
  border-color: rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, #2c2c2c 0%, #232323 100%);
  color: #f3f4f6;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
:root[data-theme="midnight"] .footer-collect-hint .hint-prefix,
:root[data-theme="midnight"] .footer-collect-hint .hint-suffix,
:root[data-theme="midnight"] .footer-collect-hint .hint-plus {
  color: #e5e7eb;
}
:root[data-theme="midnight"] .footer-collect-hint kbd {
  border-color: rgba(255, 255, 255, 0.22);
  background: linear-gradient(180deg, #f5f5f5 0%, #e5e7eb 100%);
  color: #111827;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, .8fr);
  align-items: start;
  gap: 44px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 24px 24px;
}
.footer-col { min-width: 0; }
.footer-about .logo {
  color: var(--color-primary);
  margin-bottom: 12px;
  display: inline-block;
  font-weight: 700;
  transition: color var(--transition);
}
.footer-about .logo:hover { color: var(--logo-hover-footer); }
.footer-about p {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.72;
  max-width: 560px;
  color: var(--color-footer-text);
}
.footer-about .copyright {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-footer-text-dim);
}
.footer-links h4 {
  margin: 2px 0 14px;
  font-size: 13px;
  color: #eef2f7;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}
.link-grid a {
  font-size: 13px;
  color: var(--color-footer-text);
  transition: color var(--transition), transform var(--transition);
}
.link-grid a:hover {
  color: #ffffff;
  transform: translateX(1px);
}
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px 20px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-footer-text-dim);
  border-top: 1px solid color-mix(in srgb, var(--color-footer-text) 16%, transparent);
}

/* ========== 移动端菜单按钮 ========== */
.mobile-menu-btn {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 130;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 22px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), background var(--transition);
  border: 1px solid color-mix(in srgb, var(--color-primary) 78%, #ffffff 22%);
}
.mobile-menu-btn:hover { background: var(--color-primary-hover); transform: scale(1.05); }
.mobile-menu-btn.open { transform: rotate(90deg); }
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.mobile-overlay.visible { display: block; opacity: 1; pointer-events: auto; }

/* ========== 悬浮便签 ========== */
.note-widget {
  position: fixed;
  right: 18px;
  bottom: 84px;
  z-index: 140;
}
.note-widget-toggle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 22px;
  box-shadow: var(--shadow-md);
  border: 1px solid color-mix(in srgb, var(--color-primary) 78%, #ffffff 22%);
  transition: transform var(--transition), background var(--transition);
}
.note-widget-toggle:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}
.note-widget-panel {
  position: absolute;
  right: 0;
  bottom: 58px;
  width: min(320px, calc(100vw - 24px));
  padding: 14px;
  border-radius: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
}
.note-widget-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--color-text);
}
.note-widget-close {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-size: 18px;
}
.note-widget-textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  padding: 12px 13px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.6;
}
.note-widget-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 14%, transparent);
}
.note-widget-status {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ========== 响应式 ========== */
@media (max-width: 1400px) {
  .tool-grid-6 { grid-template-columns: repeat(4, 1fr); }
  .promo-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1200px) {
  .main-nav .nav-item-link { padding: 6px 10px; font-size: 13px; }
  .tool-grid-6 { grid-template-columns: repeat(3, 1fr); }
  .tool-grid-4 { grid-template-columns: repeat(3, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
  :root {
    --sidebar-left-w: 0;
  }
  .sidebar-left {
    position: fixed;
    left: 0;
    top: 0;
    width: 300px;
    height: 100vh;
    z-index: 101;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,.15);
    padding-top: 60px;
  }
  .sidebar-left.open { transform: translateX(0); }
  .header-sub .sub-nav { display: none; }
  .stats-tags { display: none; }
  .section-promo .promo-layout { flex-direction: column; }
  .promo-sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; }
  .promo-grid { grid-template-columns: repeat(3, 1fr); }
  .mobile-menu-btn { display: flex; align-items: center; justify-content: center; }
}

@media (max-width: 768px) {
  .site-header .header-top {
    position: relative;
    display: grid;
    grid-template-columns: 40px 1fr auto;
    align-items: center;
    gap: 8px;
    min-height: 56px;
    padding: 10px 14px;
  }
  .main-nav { display: none !important; }
  .site-header .logo {
    grid-column: 2;
    justify-self: center;
    align-items: center;
    text-align: center;
  }
  .site-header .logo::after {
    letter-spacing: 0.18em;
  }
  .header-top-right {
    grid-column: 3;
    justify-self: end;
    margin-left: 0;
    gap: 6px;
  }
  .header-user {
    gap: 8px;
  }
  .header-user--guest {
    display: none;
  }
  .theme-switcher {
    height: 32px;
    width: 32px;
  }
  .theme-switcher-menu {
    top: calc(100% + 8px);
  }
  .user-header-menu-btn {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    font-size: 17px;
  }
  .theme-switcher-menu {
    right: -4px;
    min-width: 172px;
  }
  .user-header-menu-btn { display: flex; }
  .header-user .user-avatar { display: none; }
  .header-sub {
    padding: 10px 16px;
    height: auto;
    gap: 12px;
  }
  .sub-search { max-width: none; }
  .layout { flex-direction: column; }
  .main-content { padding: 16px; }
  .nav-hero { padding: 24px 16px 20px; margin-bottom: 24px; }
  .nav-title { font-size: 22px; }
  .nav-hero .nav-title::after { margin-top: 10px; }
  .nav-search-block { margin-top: 18px; max-width: 100%; padding: 0; }
  .nav-categories { margin-top: 10px; gap: 8px; }
  .nav-cat { padding: 8px 16px; font-size: 13px; }
  .nav-search-block .big-search { margin-bottom: 0; }
  .search-engine-modal {
    top: calc(100% + 6px);
  }
  .search-engine-modal .nav-subcategories { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 10px; }
  .nav-subcat { min-height: 40px; padding: 6px 8px; font-size: 13px; border-radius: 9px; }
  .nav-subcat-icon { width: 20px; height: 20px; min-width: 20px; }
  .section-title { font-size: 18px; }
  .tool-grid-6, .tool-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .tool-card { padding: 12px 8px; }
  .tool-card.small { padding: 10px 12px; gap: 3px 10px; }
  .tool-card.small .tool-icon { width: 26px; height: 26px; font-size: 11px; }
  .tool-card.small .tool-name { font-size: 13px; }
  .tool-card.small .tool-desc { display: none; }
  .tool-card .tool-icon { width: 36px; height: 36px; font-size: 14px; }
  .tool-card .tool-name { font-size: 13px; }
  .big-search { min-height: 48px; }
  .big-search .hero-search-leading { width: 30px; height: 30px; margin-left: 10px; }
  .big-search input { font-size: 14px; height: 48px; }
  .big-search .search-btn { flex-basis: 76px; min-height: 48px; }
  .big-search .search-btn .hero-search-btn-icon { width: 22px; height: 22px; }
  .filter-tags { gap: 8px; }
  .tag { padding: 6px 12px; font-size: 12px; }
  .footer-main {
    grid-template-columns: 1fr;
    padding: 24px 16px 18px;
    gap: 20px;
  }
  .footer-banner {
    padding: 12px 16px;
    flex-wrap: wrap;
  }
  .footer-banner .footer-collect-hint {
    width: 100%;
    justify-content: center;
  }
  .footer-bottom {
    padding: 12px 16px 18px;
  }
  .promo-grid { grid-template-columns: repeat(2, 1fr); }
  .note-widget {
    right: 14px;
    bottom: 82px;
  }
  .note-widget-toggle {
    width: 42px;
    height: 42px;
    font-size: 20px;
  }
  .note-widget-panel {
    bottom: 52px;
    width: min(300px, calc(100vw - 20px));
    padding: 12px;
  }
}

@media (max-width: 480px) {
  .logo { font-size: 18px; }
  .site-header .header-top {
    grid-template-columns: 36px 1fr auto;
    gap: 6px;
    min-height: 52px;
    padding: 9px 12px;
  }
  .site-header .logo {
    width: 100%;
    font-size: 18px;
    letter-spacing: 0.04em;
  }
  .site-header .logo::after {
    font-size: 9px;
    letter-spacing: 0.12em;
  }
  .header-top-right {
    gap: 5px;
  }
  .theme-switcher,
  .user-header-menu-btn {
    width: 34px;
    height: 34px;
  }
  .note-widget {
    right: 12px;
    bottom: 76px;
  }
  .note-widget-panel {
    width: min(286px, calc(100vw - 16px));
  }
  .btn-search { padding: 0 14px; font-size: 13px; }
  .nav-hero { padding: 20px 12px 18px; }
  .nav-title { font-size: 20px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .user-links-header { padding: 12px 16px; flex-direction: column; align-items: stretch; }
  .user-links-tabs { justify-content: flex-start; }
  .section-user-links .user-links-grid,
  .user-links-card.home-official-shortcuts .user-links-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px 12px;
  }
  .user-links-body { padding: 16px; }
  .user-link-item { padding: 8px 12px; gap: 8px; }
  .user-link-item-icon { width: 16px; height: 16px; min-width: 16px; min-height: 16px; font-size: 10px; }
  .user-link-item-name { font-size: 13px; }
  .user-link-mini { padding: 6px 8px; font-size: 13px; }
  .user-link-mini-name { font-size: 13px; }
  /* 手机端保持 tool-card small 一行 2 个，不再改为 1 列 */
}

/* 减少动画（尊重用户偏好） */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* 单页页面：更高级的大气排版 */
.page-main {
  background: #f5f7fa;
  padding: 32px 16px 56px;
}
.page-container {
  max-width: 960px;
  margin: 0 auto;
}
.page-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, .08);
  padding: 32px 36px 40px;
  border: 1px solid rgba(15, 23, 42, .04);
}
.page-breadcrumb {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.page-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.page-breadcrumb a:hover {
  color: var(--color-primary);
}
.page-breadcrumb .sep {
  margin: 0 6px;
  color: #cbd5e1;
}
.page-title {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
}
.page-meta {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.page-content {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}
.page-content p {
  margin: 0 0 14px;
}
.page-content h2,
.page-content h3,
.page-content h4 {
  margin: 24px 0 12px;
  line-height: 1.4;
  color: var(--color-text);
}
.page-content h2 { font-size: 20px; }
.page-content h3 { font-size: 18px; }
.page-content h4 { font-size: 16px; }
.page-content ul,
.page-content ol {
  padding-left: 22px;
  margin: 0 0 14px;
}
.page-content a {
  color: var(--color-primary);
  text-decoration: none;
}
.page-content a:hover {
  text-decoration: underline;
}
.page-content img {
  max-width: 100%;
  border-radius: 12px;
  display: block;
  margin: 16px auto;
}

@media (max-width: 768px) {
  .page-main {
    padding: 20px 12px 40px;
  }
  .page-card {
    padding: 22px 18px 28px;
    border-radius: 12px;
  }
  .page-title {
    font-size: 22px;
  }
}

/* ========== 登录/注册页 ========== */
.site-header--minimal .header-top { max-width: 1200px; }
.auth-page {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-primary) 5%, var(--color-bg)) 0%, var(--color-bg-alt) 50%);
}
.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(15,23,42,.1);
  padding: 36px 32px 32px;
  border: 1px solid rgba(15,23,42,.06);
}
.auth-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--color-text);
  text-align: center;
}
.auth-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  text-align: center;
  margin: 0 0 24px;
}
.auth-error {
  background: #fef2f2;
  color: #b91c1c;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  border: 1px solid #fecaca;
}
.auth-form .form-group {
  margin-bottom: 18px;
}
.auth-form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}
.auth-form input[type="tel"],
.auth-form input[type="text"],
.auth-form input[type="password"] {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.auth-form input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 22%, transparent);
}
.btn-auth {
  width: 100%;
  height: 46px;
  margin-top: 8px;
  background: var(--color-primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition), transform 0.15s ease;
}
.btn-auth:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}
.auth-foot {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 20px 0 0;
}
.auth-foot a {
  color: var(--color-primary);
  font-weight: 500;
}
.auth-foot a:hover { text-decoration: underline; }