/* 35短链统一视觉系统 */
:root {
  --ui-ink: #172033;
  --ui-muted: #6b7890;
  --ui-subtle: #94a0b4;
  --ui-primary: #5b5ce2;
  --ui-primary-strong: #4546c7;
  --ui-cyan: #27c6b8;
  --ui-surface: #ffffff;
  --ui-surface-soft: #f7f8fc;
  --ui-line: #e7eaf3;
  --ui-bg: #f3f5fb;
  --ui-radius: 18px;
  --ui-shadow: 0 18px 50px rgba(36, 45, 88, .11);
  --ui-shadow-soft: 0 8px 24px rgba(36, 45, 88, .08);
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body.public-page,
body.docs-page,
body.login-page,
body.admin-page,
body.redirect-page,
body.browser-page,
body.error-page {
  color: var(--ui-ink);
  background: var(--ui-bg);
  font-family: Inter, "SF Pro Display", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* 公共导航 */
.public-page .top-navbar,
.docs-page .top-navbar {
  height: 70px !important;
  padding: 0 clamp(18px, 5vw, 72px) !important;
  background: rgba(255, 255, 255, .82) !important;
  border-bottom: 1px solid rgba(231, 234, 243, .82);
  box-shadow: 0 8px 30px rgba(52, 63, 106, .06) !important;
  backdrop-filter: blur(18px);
}

.public-page .nav-logo,
.docs-page .nav-logo { gap: 11px !important; }

.public-page .nav-logo-img,
.docs-page .nav-logo-img {
  width: 38px !important;
  height: 38px !important;
  padding: 5px;
  border-radius: 12px;
  background: linear-gradient(145deg, #6b6cf2, #35cfc1);
  box-shadow: 0 7px 16px rgba(91, 92, 226, .25);
  object-fit: contain;
}

.public-page .nav-title,
.docs-page .nav-title {
  color: var(--ui-ink) !important;
  font-size: 1.08rem !important;
  letter-spacing: .02em !important;
}

.public-page .nav-links,
.docs-page .nav-links { gap: 8px !important; }

.public-page .nav-link,
.docs-page .nav-link {
  padding: 9px 13px !important;
  border-radius: 10px;
  color: var(--ui-muted) !important;
  font-size: .9rem !important;
  font-weight: 600;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}

.public-page .nav-link:hover,
.docs-page .nav-link:hover {
  color: var(--ui-primary) !important;
  background: #f0f0ff;
  transform: translateY(-1px);
}

.public-page .nav-tool,
.docs-page .nav-tool { gap: 8px !important; }

.public-page #langToggleBtn,
.public-page #themeToggleBtn,
.docs-page #langToggleBtn,
.docs-page #themeToggleBtn {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--ui-line);
  border-radius: 10px;
  color: var(--ui-muted);
  background: rgba(255,255,255,.72);
  cursor: pointer;
  transition: all .2s ease;
}

.public-page #langToggleBtn:hover,
.public-page #themeToggleBtn:hover,
.docs-page #langToggleBtn:hover,
.docs-page #themeToggleBtn:hover {
  color: var(--ui-primary);
  border-color: #c9c9fa;
  background: #f3f3ff;
}

/* 首页 */
.public-page {
  background:
    radial-gradient(circle at 8% 7%, rgba(104, 105, 241, .17), transparent 28%),
    radial-gradient(circle at 92% 13%, rgba(39, 198, 184, .14), transparent 25%),
    var(--ui-bg) !important;
}

.public-page .container {
  width: min(760px, calc(100% - 32px)) !important;
  max-width: none !important;
  margin: clamp(54px, 10vh, 100px) auto 72px !important;
  padding: 42px clamp(22px, 6vw, 70px) 46px !important;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 28px;
  background: rgba(255,255,255,.88);
  box-shadow: var(--ui-shadow);
  backdrop-filter: blur(18px);
}

.public-page .container::before {
  content: "快速、可靠的链接管理";
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 11px;
  border: 1px solid #d9d9ff;
  border-radius: 999px;
  color: var(--ui-primary-strong);
  background: #f2f2ff;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .04em;
}

.public-page .container h1 {
  margin: 18px 0 10px !important;
  color: var(--ui-ink) !important;
  font-size: clamp(2.1rem, 5vw, 3.3rem) !important;
  line-height: 1.1 !important;
  letter-spacing: -.055em !important;
}

.public-page #slogan {
  max-width: 540px;
  margin-bottom: 34px;
  color: var(--ui-muted);
  font-size: 1rem;
  line-height: 1.75;
}

.public-page #shortenForm {
  display: grid;
  gap: 18px;
}

.public-page .input-group {
  margin: 0 !important;
  padding: 0 !important;
}

.public-page .input-group label {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-bottom: 8px !important;
  color: var(--ui-ink) !important;
  font-size: .87rem !important;
  font-weight: 700 !important;
}

.public-page .input-group input {
  width: 100% !important;
  min-height: 52px;
  padding: 0 16px !important;
  border: 1px solid var(--ui-line) !important;
  border-radius: 13px !important;
  outline: none;
  color: var(--ui-ink);
  background: var(--ui-surface-soft);
  font: inherit;
  transition: border .2s ease, box-shadow .2s ease, background .2s ease;
}

.public-page .input-group input:hover { background: #fff; }
.public-page .input-group input:focus {
  border-color: #9c9df2 !important;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(91, 92, 226, .12) !important;
}

.public-page .input-group small {
  display: block;
  margin-top: 7px;
  color: var(--ui-subtle);
  line-height: 1.5;
}

.public-page #expireDays { max-width: 160px; }

.public-page #generateBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: 100%;
  min-height: 54px;
  margin-top: 8px;
  border: 0 !important;
  border-radius: 14px !important;
  color: #fff !important;
  background: linear-gradient(110deg, var(--ui-primary), #7778f0) !important;
  box-shadow: 0 13px 24px rgba(91, 92, 226, .27) !important;
  font-size: 1rem !important;
  font-weight: 750 !important;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

.public-page #generateBtn:hover { transform: translateY(-2px); filter: saturate(1.08); box-shadow: 0 17px 28px rgba(91, 92, 226, .34) !important; }
.public-page #generateBtn:active { transform: translateY(0); }
.public-page #btnLoading svg circle { stroke: #fff !important; }

.public-page .result,
.public-page .error {
  margin-top: 22px !important;
  padding: 17px 18px !important;
  border-radius: 14px !important;
  line-height: 1.65;
}

.public-page .result { border: 1px solid #c9f0e8; background: #effcf9 !important; color: #12665d; }
.public-page .error { border: 1px solid #ffd5d5; background: #fff4f4 !important; color: #b42318; }
.public-page .result a { color: var(--ui-primary-strong) !important; font-weight: 700; }
.public-page .result button { border-radius: 9px !important; background: var(--ui-primary) !important; }

.public-page #main-content { width: 100%; }

.public-page .seo-content {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto 28px;
  padding: clamp(26px, 5vw, 48px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 26px;
  background: rgba(255,255,255,.78);
  box-shadow: var(--ui-shadow-soft);
  backdrop-filter: blur(16px);
}

.public-page .seo-heading { max-width: 720px; margin-bottom: 28px; }
.public-page .seo-eyebrow {
  margin: 0 0 9px;
  color: var(--ui-primary-strong);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.public-page .seo-content h2 {
  margin: 0 0 12px;
  color: var(--ui-ink);
  font-size: clamp(1.55rem, 3.5vw, 2.25rem);
  line-height: 1.22;
  letter-spacing: -.035em;
}
.public-page .seo-content h3 { margin: 18px 0 9px; color: var(--ui-ink); font-size: 1.05rem; }
.public-page .seo-content p { margin-top: 0; color: var(--ui-muted); line-height: 1.8; }
.public-page .feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.public-page .feature-card {
  min-height: 215px;
  padding: 23px;
  border: 1px solid var(--ui-line);
  border-radius: 18px;
  background: rgba(255,255,255,.8);
}
.public-page .feature-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(145deg, var(--ui-primary), var(--ui-cyan));
  box-shadow: 0 9px 18px rgba(91,92,226,.2);
  font-size: .78rem;
  font-weight: 800;
}
.public-page .use-case-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(26px, 6vw, 72px); align-items: start; }
.public-page .use-case-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.public-page .use-case-list li {
  position: relative;
  padding: 16px 18px 16px 45px;
  border: 1px solid var(--ui-line);
  border-radius: 14px;
  color: var(--ui-muted);
  background: rgba(255,255,255,.75);
  line-height: 1.7;
}
.public-page .use-case-list li::before {
  content: "✓";
  position: absolute;
  left: 17px;
  top: 16px;
  color: var(--ui-cyan);
  font-weight: 900;
}
.public-page .faq-list { display: grid; gap: 11px; }
.public-page .faq-list details { border: 1px solid var(--ui-line); border-radius: 14px; background: rgba(255,255,255,.8); }
.public-page .faq-list summary { padding: 17px 19px; color: var(--ui-ink); cursor: pointer; font-weight: 700; }
.public-page .faq-list details p { margin: 0; padding: 0 19px 18px; }

.public-page.dark .seo-content { border-color: #30384b; background: rgba(35,39,47,.88); }
.public-page.dark .seo-content h2,
.public-page.dark .seo-content h3,
.public-page.dark .faq-list summary { color: #eef2ff; }
.public-page.dark .seo-content p,
.public-page.dark .use-case-list li { color: #aab6c9; }
.public-page.dark .feature-card,
.public-page.dark .use-case-list li,
.public-page.dark .faq-list details { border-color: #364052; background: rgba(24,30,42,.72); }

.public-page .footer-bar,
.docs-page .footer-bar {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 28px !important;
  color: var(--ui-subtle) !important;
  font-size: .83rem;
}

.public-page .footer-links,
.docs-page .footer-links,
.public-page .footer-copyright,
.docs-page .footer-copyright { gap: 8px !important; }

.public-page .footer-bar a,
.docs-page .footer-bar a { color: var(--ui-primary) !important; }
.public-page .footer-divider,
.docs-page .footer-divider { background: var(--ui-line) !important; }

/* 文档页 */
.docs-page {
  background:
    radial-gradient(circle at 88% 3%, rgba(39, 198, 184, .12), transparent 23%),
    var(--ui-bg) !important;
}

.docs-page .doc-container {
  width: min(1040px, calc(100% - 32px)) !important;
  margin: 44px auto 58px !important;
  padding: clamp(24px, 5vw, 56px) !important;
  border: 1px solid rgba(255,255,255,.88);
  border-radius: 26px;
  background: rgba(255,255,255,.9) !important;
  box-shadow: var(--ui-shadow);
}

.docs-page .doc-container header {
  margin-bottom: 32px !important;
  padding-bottom: 23px;
  border-bottom: 1px solid var(--ui-line);
}

.docs-page .doc-container h1 {
  margin: 0 !important;
  color: var(--ui-ink) !important;
  font-size: clamp(1.8rem, 4vw, 2.6rem) !important;
  letter-spacing: -.04em;
}

.docs-page .doc-container section {
  margin: 0 0 28px !important;
  padding: 24px !important;
  border: 1px solid var(--ui-line);
  border-radius: 17px;
  background: #fff;
}

.docs-page .doc-container h2,
.docs-page .doc-container h3 { color: var(--ui-ink) !important; }
.docs-page .doc-container p { color: var(--ui-muted); line-height: 1.8; }
.docs-page .doc-container table {
  width: 100%;
  margin: 16px 0 22px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--ui-line);
  border-radius: 12px;
}
.docs-page .doc-container th,
.docs-page .doc-container td {
  padding: 13px 14px !important;
  border-bottom: 1px solid var(--ui-line);
  color: var(--ui-muted);
  text-align: left;
  line-height: 1.6;
}
.docs-page .doc-container th { color: var(--ui-ink); background: #f7f8fc; font-weight: 700; }
.docs-page .doc-container tr:last-child td { border-bottom: 0; }
.docs-page .doc-container code {
  padding: 3px 7px;
  border-radius: 7px;
  color: var(--ui-primary-strong);
  background: #f0f0ff;
}
.docs-page .doc-container pre {
  overflow: auto;
  padding: 18px;
  border-radius: 13px;
  color: #dce2ff;
  background: #1e2440;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
  line-height: 1.7;
}
.docs-page .doc-container pre code { padding: 0; color: inherit; background: transparent; }

/* 登录页 */
.login-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 15%, rgba(115, 116, 245, .42), transparent 28%),
    radial-gradient(circle at 90% 84%, rgba(39, 198, 184, .25), transparent 26%),
    #171b35 !important;
}

.login-page .login-box {
  position: relative;
  width: min(420px, calc(100% - 32px)) !important;
  max-width: none !important;
  padding: 38px 34px 34px !important;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 24px !important;
  background: rgba(255,255,255,.96) !important;
  box-shadow: 0 28px 80px rgba(6, 8, 29, .42) !important;
}

.login-page .login-box::before {
  content: "35";
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin: 0 auto 18px;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(145deg, var(--ui-primary), var(--ui-cyan));
  box-shadow: 0 12px 22px rgba(91, 92, 226, .25);
  font-size: 1.35rem;
  font-weight: 800;
}

.login-page .login-box h2 { margin: 0 0 7px !important; color: var(--ui-ink); font-size: 1.45rem; }
.login-page .login-box h2::after { content: "安全管理控制台"; display: block; margin-top: 8px; color: var(--ui-muted); font-size: .84rem; font-weight: 400; }
.login-page .form-group { margin: 0 0 18px !important; }
.login-page .form-group label { margin-bottom: 8px !important; color: var(--ui-ink) !important; font-weight: 700; }
.login-page .form-group input {
  width: 100% !important;
  min-height: 48px;
  padding: 0 14px !important;
  border: 1px solid var(--ui-line) !important;
  border-radius: 12px !important;
  background: var(--ui-surface-soft);
  outline: none;
  transition: border .2s, box-shadow .2s;
}
.login-page .form-group input:focus { border-color: #9c9df2 !important; background: #fff; box-shadow: 0 0 0 4px rgba(91,92,226,.12); }
.login-page .login-btn {
  min-height: 50px;
  margin-top: 5px;
  border-radius: 12px !important;
  background: linear-gradient(110deg, var(--ui-primary), #7778f0) !important;
  font-weight: 750;
  box-shadow: 0 11px 20px rgba(91,92,226,.24);
}
.login-page .error { min-height: 22px; color: #b42318; }

/* 跳转页 */
.redirect-page {
  min-height: 100vh;
  padding: 20px !important;
  background:
    radial-gradient(circle at 18% 18%, rgba(124, 125, 255, .32), transparent 30%),
    radial-gradient(circle at 82% 78%, rgba(39, 198, 184, .22), transparent 28%),
    #171b35 !important;
}
.redirect-page .notice-box {
  width: min(560px, 100%);
  padding: clamp(30px, 7vw, 54px) !important;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 27px !important;
  background: rgba(255,255,255,.96) !important;
  box-shadow: 0 30px 80px rgba(5, 8, 30, .34) !important;
  transform: none !important;
  opacity: 1 !important;
}
.redirect-page .title { margin: 0 0 18px !important; color: var(--ui-ink) !important; font-size: clamp(1.7rem, 5vw, 2.25rem) !important; }
.redirect-page .content { color: var(--ui-muted) !important; line-height: 1.8; }
.redirect-page .date { color: var(--ui-primary) !important; font-size: 1.4em; font-weight: 800; }
.redirect-page .target-url { display: inline-block; max-width: 100%; color: var(--ui-primary-strong) !important; font-weight: 650; word-break: break-all; }
.redirect-page .custom-btn {
  min-height: 44px;
  padding: 0 17px !important;
  border: 1px solid #d4d5fa !important;
  border-radius: 11px !important;
  color: var(--ui-primary-strong) !important;
  background: #f3f3ff !important;
  cursor: pointer;
  font-weight: 700;
  transition: all .2s;
}
.redirect-page .custom-btn:hover { color: #fff !important; background: var(--ui-primary) !important; transform: translateY(-1px); }

/* 微信/QQ 提示页 */
.browser-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px !important;
  background:
    radial-gradient(circle at 20% 10%, rgba(115,116,245,.35), transparent 30%),
    #171b35 !important;
}
.browser-page .top-bar-guidance,
.browser-page #contens,
.browser-page .app-download-tip { width: min(520px, 100%); margin: 0 auto !important; }
.browser-page .top-bar-guidance {
  height: auto !important;
  padding: 22px !important;
  border-radius: 18px 18px 0 0;
  color: #fff !important;
  background: linear-gradient(135deg, #5b5ce2, #2a9fbd) !important;
  font-size: 1rem !important;
}
.browser-page #contens {
  padding: 24px 22px !important;
  color: var(--ui-ink) !important;
  background: #fff;
  font-size: 1rem !important;
  line-height: 1.8;
}
.browser-page .app-download-tip { padding: 15px 22px !important; color: var(--ui-primary-strong) !important; background: #fff !important; font-size: .9rem; }
.browser-page .app-download-tip:last-of-type { border-radius: 0 0 18px 18px; }

/* 管理后台 */
.admin-page { background: var(--ui-bg) !important; }
.admin-page .sidebar {
  width: 248px !important;
  padding: 16px 12px;
  background: linear-gradient(180deg, #252956 0%, #171b35 100%) !important;
  box-shadow: 12px 0 30px rgba(28, 33, 73, .12);
}
.admin-page .sidebar h2 { padding: 17px 10px 25px !important; color: #fff; font-size: 1.2rem !important; letter-spacing: .04em !important; }
.admin-page .sidebar h2::before {
  content: "35";
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-right: 9px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(145deg, #7778f0, #27c6b8);
  font-size: .9rem;
}
.admin-page .nav { gap: 5px; }
.admin-page .nav a { padding: 13px 16px !important; border-radius: 11px; color: #c8cbea !important; font-size: .9rem !important; font-weight: 600; }
.admin-page .nav a.active,
.admin-page .nav a:hover { color: #fff !important; background: rgba(117, 119, 240, .25) !important; }
.admin-page .main { margin-left: 248px !important; padding: 34px clamp(20px, 4vw, 54px) !important; }
.admin-page .section { max-width: 1260px; margin: 0 auto; }
.admin-page .title-bar { margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--ui-line); }
.admin-page .title-bar h3 { color: var(--ui-ink); font-size: 1.38rem; letter-spacing: -.02em; }
.admin-page .btn {
  min-height: 38px;
  padding: 0 14px !important;
  border: 0 !important;
  border-radius: 10px !important;
  background: var(--ui-primary) !important;
  box-shadow: 0 7px 16px rgba(91,92,226,.18) !important;
  font-weight: 650;
}
.admin-page .btn:hover { background: var(--ui-primary-strong) !important; transform: translateY(-1px); }
.admin-page .input {
  min-height: 40px;
  padding: 0 12px !important;
  border: 1px solid var(--ui-line) !important;
  border-radius: 10px !important;
  background: #fff;
}
.admin-page .table {
  border: 1px solid var(--ui-line);
  border-radius: 15px !important;
  box-shadow: var(--ui-shadow-soft) !important;
}
.admin-page .table th { color: var(--ui-muted); background: #f7f8fc !important; font-size: .8rem; letter-spacing: .03em; text-transform: uppercase; }
.admin-page .table td { color: #4e5b72; font-size: .9rem; }
.admin-page .table tr:hover td { background: #fbfbff; }
.admin-page .stat-box {
  border: 1px solid var(--ui-line) !important;
  border-radius: 16px !important;
  background: #fff !important;
  box-shadow: var(--ui-shadow-soft) !important;
}
.admin-page .stat-box strong { color: var(--ui-primary-strong); }
.admin-page .empty-tip { color: var(--ui-subtle) !important; }
.admin-page #modal { background: rgba(18, 23, 52, .48) !important; backdrop-filter: blur(4px); }
.admin-page #modal > div { border: 1px solid var(--ui-line); border-radius: 18px !important; box-shadow: 0 24px 70px rgba(16,20,54,.24) !important; }

/* 404 */
.error-page { min-height: 100vh; background: linear-gradient(145deg, #f3f5fb, #e9ebff) !important; }
.error-page main { width: min(1100px, calc(100% - 32px)); }
.error-page main .container { width: 100%; max-width: none; }
.error-page .btn.green { border: 0; border-radius: 10px; background: var(--ui-primary) !important; box-shadow: 0 9px 18px rgba(91,92,226,.22); }
.error-page .btn.green a { color: #fff !important; text-decoration: none; }

@media (max-width: 760px) {
  .public-page .top-navbar,
  .docs-page .top-navbar { height: auto !important; min-height: 66px; flex-wrap: wrap; gap: 8px; padding: 12px 16px !important; }
  .public-page .nav-links,
  .docs-page .nav-links { order: 3; width: 100%; justify-content: center; }
  .public-page .container { margin-top: 28px !important; padding: 30px 20px 34px !important; border-radius: 22px; }
  .public-page .seo-content { padding: 25px 19px; border-radius: 21px; }
  .public-page .feature-grid,
  .public-page .use-case-section { grid-template-columns: 1fr; }
  .public-page .feature-card { min-height: auto; }
  .docs-page .doc-container { margin-top: 24px !important; padding: 20px 14px !important; border-radius: 20px; }
  .docs-page .doc-container section { padding: 17px !important; overflow-x: auto; }
  .docs-page .doc-container table { min-width: 560px; }
  .admin-page .sidebar { position: relative !important; width: 100% !important; min-height: auto; padding: 8px; flex-direction: column !important; }
  .admin-page .sidebar h2 { display: block !important; padding: 9px 10px 12px !important; text-align: left !important; }
  .admin-page .nav { flex-direction: row !important; overflow-x: auto; }
  .admin-page .nav a { flex: 0 0 auto; padding: 10px 13px !important; white-space: nowrap; }
  .admin-page .main { margin-left: 0 !important; padding: 22px 12px !important; }
  .admin-page .table { display: block; overflow-x: auto; white-space: nowrap; }
  .redirect-page .notice-box { padding: 30px 21px !important; border-radius: 21px !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}