/* ========== 设计令牌（浅色风格）========== */
:root{
  --navy:#1f3a5f;
  --blue:#1a6ee0;
  --blue-dark:#1558b8;
  --cyan:#16a6d9;
  --amber:#f5a524;
  --amber-dark:#e08a00;
  --ink:#23384f;
  --ink-2:#6b7d90;
  --line:#e6edf4;
  --paper:rgba(255,255,255,.78);
  --radius-md:12px;
  --shadow-md:0 8px 24px rgba(31,58,95,.10);
  --shadow-lg:0 16px 40px rgba(31,58,95,.14);
  --font:'PingFang SC','Microsoft YaHei','Segoe UI',system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  overflow:hidden;
  background:#dce9f5;
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;
}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(90,110,135,.28);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:rgba(90,110,135,.45)}
::-webkit-scrollbar-track{background:transparent}

/* ========== 顶栏：左上角操作按钮 + 右上角时钟 ========== */
.topbar{position:relative;height:100vh;overflow-y:auto}
.topbar-inner{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:14px;
  padding:8px clamp(16px,3vw,32px) 0;
}
.top-actions{display:flex;flex-direction:row;align-items:center;gap:8px;flex-wrap:nowrap}
.btn-login{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;padding:0;border-radius:999px;
  background:rgba(255,255,255,.14);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  color:rgba(255,255,255,.55);font-size:15px;line-height:1;
  border:1px solid rgba(255,255,255,.22);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-login:hover{background:rgba(255,255,255,.30);color:#fff;transform:translateY(-1px)}
/* 管理登录：固定在左下角 */
.btn-login{position:fixed;left:clamp(16px,3vw,32px);bottom:20px;z-index:40}
/* 个人主页 / 添加网址：同款蓝色渐变按钮 */
.btn-home,.btn-apply{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:999px;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  color:#fff;font-size:12.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid rgba(255,255,255,.35);
  box-shadow:0 4px 12px rgba(26,110,224,.38);
  transition:filter .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-home:hover,.btn-apply:hover{filter:brightness(1.07);transform:translateY(-1px)}
.clock{display:flex;flex-direction:column;align-items:flex-end;gap:2px;color:#fff;text-align:right;line-height:1.15}
.clock-date{font-size:14px;font-weight:700;letter-spacing:.04em;white-space:nowrap;
  text-shadow:0 1px 10px rgba(10,30,60,.60),0 1px 3px rgba(10,30,60,.45)}
.clock-time{font-family:'Bahnschrift','Segoe UI',system-ui,sans-serif;
  font-size:42px;font-weight:700;letter-spacing:.05em;font-variant-numeric:tabular-nums;line-height:1.05;
  text-shadow:0 2px 14px rgba(10,30,60,.55),0 1px 4px rgba(10,30,60,.40)}

/* ========== Hero 招牌 + 搜索 ========== */
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 clamp(16px,3vw,32px)}
.hero{text-align:center;padding:0}
.hero h1{
  color:#fff;margin-top:1px;
  font-size:clamp(30px,4.2vw,46px);font-weight:700;letter-spacing:.09em;
  text-shadow:0 2px 18px rgba(10,30,60,.60),0 1px 4px rgba(10,30,60,.45);
}
.searchbar{
  position:relative;width:100%;margin:74px 0 0;
  display:flex;align-items:center;background:#fff;
  border-radius:999px;padding:7px 7px 7px 10px;
  box-shadow:0 10px 30px rgba(31,58,95,.20);border:1px solid var(--line);
}
.engine-switch{position:relative;flex:none}
.engine-btn{display:flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--navy);background:#eef4fb;white-space:nowrap;transition:background .18s ease}
.engine-btn:hover{background:#e2ecf8}
.engine-btn .caret{font-size:10px;color:var(--ink-2);transition:transform .18s ease}
.engine-btn.open .caret{transform:rotate(180deg)}
.engine-menu{position:absolute;top:calc(100% + 10px);left:0;width:190px;
  background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);border:1px solid var(--line);
  padding:8px;display:none;z-index:60}
.engine-menu.show{display:block;animation:pop .16s ease}
@keyframes pop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.engine-group{font-size:11px;color:var(--ink-2);letter-spacing:.12em;padding:8px 10px 4px}
.engine-opt{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border-radius:9px;
  font-size:14px;color:var(--ink);text-align:left}
.engine-opt:hover{background:#f0f5fb}
.engine-opt.sel{color:var(--blue);font-weight:600}
.engine-opt .dot{width:8px;height:8px;border-radius:50%;flex:none}
.engine-opt.sel .dot{box-shadow:0 0 0 3px rgba(26,110,224,.18)}
.search-input{flex:1;min-width:0;border:none;outline:none;background:transparent;padding:10px 16px;
  font-size:15px;color:var(--ink);font-family:inherit}
.search-input::placeholder{color:#9aa8b8}
.search-submit{flex:none;width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--blue));color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(26,110,224,.30);transition:filter .18s ease,transform .18s ease}
.search-submit:hover{filter:brightness(1.08);transform:scale(1.05)}

/* ========== 分类标签 ========== */
.cat-tabs{display:flex;flex-wrap:wrap;justify-content:flex-start;gap:9px;margin:18px 0 0}
.cat-tab{display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.42);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.60);color:var(--navy);font-size:13.5px;font-weight:700;letter-spacing:.02em;
  transition:background .18s ease,color .18s ease,transform .18s ease}
.cat-tab:hover{background:rgba(255,255,255,.60);transform:translateY(-1px)}
.cat-tab.active{background:#fff;color:var(--blue);box-shadow:0 4px 14px rgba(31,58,95,.18)}

/* ========== 网址内容区 ========== */
.content{max-width:1080px;margin:26px auto 0;padding:0 clamp(16px,3vw,32px) 48px}
.cat-section{background:rgba(255,255,255,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.75);border-radius:18px;padding:20px clamp(16px,2.5vw,26px);
  margin-bottom:20px;box-shadow:0 8px 26px rgba(31,58,95,.10)}
.cat-section[hidden]{display:none}
.link-card[hidden]{display:none}
.no-result{display:none;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.75);border-radius:18px;padding:34px 20px;text-align:center;
  color:var(--ink-2);font-size:14px;letter-spacing:.04em;margin-bottom:20px;box-shadow:0 8px 26px rgba(31,58,95,.10)}
.no-result.show{display:block}
.cat-head{display:flex;align-items:center;gap:11px;margin-bottom:15px}
.cat-head .ci{width:32px;height:32px;border-radius:9px;flex:none;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--navy);background:#eaf1fa}
.cat-head h2{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--navy)}
.link-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.link-card{display:flex;align-items:center;gap:10px;min-width:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:9px 11px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd4f2}
.monogram{width:32px;height:32px;border-radius:9px;flex:none;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:600;overflow:hidden}
.monogram img{width:100%;height:100%;object-fit:cover;border-radius:9px}
.link-name{font-size:13px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  flex:1;min-width:0}
.content-footer{text-align:center;color:var(--ink-2);font-size:12.5px;padding-top:8px;letter-spacing:.05em}

/* ========== 模态框 ========== */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.modal-overlay{position:absolute;inset:0;background:rgba(31,58,95,.30);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.modal-card{position:relative;width:100%;max-width:420px;background:#fff;border-radius:18px;padding:30px 28px 26px;
  box-shadow:var(--shadow-lg);animation:rise .22s ease}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.modal-close{position:absolute;right:14px;top:14px;width:32px;height:32px;border-radius:9px;color:var(--ink-2);font-size:17px;line-height:1}
.modal-close:hover{background:#f0f4f9;color:var(--ink)}
.modal-card h3{font-size:18px;font-weight:700;margin-bottom:4px;color:var(--navy)}
.modal-card .m-sub{font-size:13px;color:var(--ink-2);margin-bottom:20px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;padding:10px 13px;border:1px solid #d7e0ea;border-radius:10px;
  font-size:14px;font-family:inherit;color:var(--ink);background:#fbfcfe;transition:border-color .15s ease,box-shadow .15s ease}
.field textarea{resize:vertical;min-height:70px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,110,224,.12);outline:none}
.modal-submit{width:100%;padding:12px;border-radius:12px;margin-top:6px;background:linear-gradient(135deg,var(--cyan),var(--blue));
  color:#fff;font-size:15px;font-weight:600;box-shadow:0 4px 14px rgba(26,110,224,.30);transition:filter .18s ease}
.modal-submit:hover{filter:brightness(1.08)}

/* Toast */
.toast{position:fixed;left:50%;bottom:38px;transform:translateX(-50%) translateY(16px);
  background:rgba(31,58,95,.92);color:#fff;padding:11px 22px;border-radius:999px;font-size:14px;
  opacity:0;pointer-events:none;z-index:200;transition:opacity .25s ease,transform .25s ease;box-shadow:0 8px 24px rgba(31,58,95,.4)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ========== 响应式 ========== */
@media (max-width:900px){
  .clock-time{font-size:30px}
  .btn-apply{padding:6px 10px;font-size:11.5px}
  .btn-home{padding:6px 10px;font-size:11.5px}
  .top-actions{gap:6px}
  .topbar-inner{padding-top:6px}
  .hero{padding-top:0}
  .hero h1{margin-top:1px}
  .searchbar{margin-top:46px}
  .cat-tabs{margin-top:16px;gap:7px}
  .cat-tab{padding:7px 13px;font-size:12.5px}
  .content{margin-top:18px}
  .link-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .engine-menu{left:auto;right:-10px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}