/* 电音基调查询库 — 页面样式（与「应用中心 /apps/」保持同一套设计语言）
   独立文件，不再共用 music-static/style.css，避免影响 docs / admin 两个页面 */
:root{
  --bg:#F7F8FA;
  --card:#ffffff;
  --line:#EBEEF5;
  --line2:#F0F2F5;
  --ink:#303133;
  --ink2:#606266;
  --dim:#909399;
  --primary:#3D5AA9;
  --primary-d:#2B3A67;
  --blue:#409EFF;
  --blue-bg:#ECF5FF;
  --light:#7EB8FF;
  --hero:linear-gradient(160deg,#1F2A44 0%,#2B3A67 55%,#3D5AA9 100%);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  --mono:'SF Mono',Consolas,'Cascadia Mono',monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;min-height:100vh}
a{text-decoration:none;color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.bg-grid{position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(900px 420px at 50% -120px, rgba(61,90,169,.07), transparent 60%)}

/* ===== 顶栏（压在深色 hero 上）===== */
.userbar{position:absolute;top:0;right:0;left:0;z-index:3;
  display:flex;justify-content:flex-end;align-items:center;gap:12px;
  max-width:1120px;margin:0 auto;padding:22px 20px 0}
.user-info{color:rgba(255,255,255,.78);font-size:13px}
.dl-open,.login-btn,.logout-btn{border-radius:9px;padding:8px 18px;font-size:13.5px;
  font-weight:600;cursor:pointer;font-family:var(--font);transition:.15s;
  border:1px solid transparent;line-height:1.4}
.dl-open{background:#fff;color:var(--primary-d)}
.dl-open:hover{background:#EAF0FF}
.login-btn{border-color:rgba(255,255,255,.45);background:transparent;color:#fff}
.login-btn:hover{background:rgba(255,255,255,.14)}
.logout-btn{border-color:rgba(255,255,255,.28);background:transparent;color:rgba(255,255,255,.82)}
.logout-btn:hover{background:rgba(255,255,255,.12)}

/* ===== Hero ===== */
.hero{position:relative;background:var(--hero);color:#fff;text-align:center;
  padding:86px 0 92px;overflow:hidden}
.hero .badge{display:inline-block;font-size:13px;font-weight:600;letter-spacing:3px;
  padding:8px 24px;border:1px solid rgba(255,255,255,.35);border-radius:999px;
  margin-bottom:22px;opacity:.95}
.hero h1{font-size:38px;font-weight:700;line-height:1.35;margin-bottom:14px}
.hero h1 em{font-style:normal;color:var(--light)}
.hero .tagline{font-size:16px;opacity:.82;max-width:640px;margin:0 auto}
.hero .tagline b{font-weight:700;color:#fff}

.search{display:flex;align-items:center;max-width:640px;margin:30px auto 0;
  background:#fff;border-radius:14px;padding:6px 6px 6px 16px;
  box-shadow:0 18px 44px rgba(15,23,42,.22);transition:box-shadow .2s}
.search:focus-within{box-shadow:0 0 0 4px rgba(126,184,255,.35),0 18px 44px rgba(15,23,42,.22)}
.sicon{color:#C0C4CC;flex:none}
.search input{flex:1;min-width:0;background:none;border:0;outline:0;color:var(--ink);
  font-size:17px;font-family:var(--font);height:46px;padding:0 12px}
.search input::placeholder{color:#C0C4CC}
.search button{background:var(--primary);color:#fff;border:0;border-radius:9px;
  height:46px;padding:0 28px;font-family:var(--font);font-weight:700;
  font-size:15px;letter-spacing:.14em;cursor:pointer;transition:.15s}
.search button:hover{background:var(--primary-d)}
.search button:active{transform:translateY(1px)}

.filters{display:flex;justify-content:center;align-items:center;gap:16px;
  flex-wrap:wrap;margin-top:20px}
.seg{display:flex;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);border-radius:10px;padding:3px}
.seg button{border:0;background:none;color:rgba(255,255,255,.78);padding:7px 18px;
  border-radius:8px;cursor:pointer;font-size:13.5px;font-family:var(--font);transition:.15s}
.seg button:hover{color:#fff}
.seg button.on{background:#fff;color:var(--primary);font-weight:600}

/* 按需求隐藏：统计行 + 质量筛选（默认全部质量） */
.stats{display:none}
.chips{display:none}

/* ===== 功能介绍 ===== */
.feat{position:relative;z-index:1;padding:56px 0 4px}
.sec-h{text-align:center;font-size:22px;margin-bottom:8px}
.sec-sub{text-align:center;color:var(--dim);font-size:14px;margin-bottom:26px}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.feat-item{background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:26px 24px;transition:transform .2s,box-shadow .2s}
.feat-item:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,42,68,.13)}
.feat-item .fi{width:48px;height:48px;border-radius:12px;display:flex;
  align-items:center;justify-content:center;font-size:24px;
  background:linear-gradient(135deg,#3D5AA9,#7EB8FF);margin-bottom:14px}
.feat-item b{display:block;font-size:17px;margin-bottom:6px}
.feat-item p{font-size:14px;color:var(--ink2)}

/* ===== 结果区 ===== */
main{position:relative;z-index:1;padding:30px 20px 40px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.status{text-align:center;color:var(--dim);padding:38px 20px;font-size:14px}
.status:empty{display:none}
.status .ex{border:1px dashed #DCDFE6;background:none;color:var(--ink2);
  border-radius:999px;padding:5px 14px;cursor:pointer;font-size:13px;
  margin:0 3px;font-family:var(--font);transition:.15s}
.status .ex:hover{color:var(--primary);border-color:var(--primary);background:var(--blue-bg)}

.results{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:36px 1fr auto;gap:14px;align-items:center;
  padding:14px 20px;border-bottom:1px solid var(--line2);position:relative;
  animation:rowin .3s both}
.row:last-child{border-bottom:0}
.row:hover{background:#FAFBFD}
.row::before{content:'';position:absolute;left:0;top:22%;bottom:22%;width:3px;
  border-radius:0 3px 3px 0;background:transparent;transition:.15s}
.row:hover::before{background:var(--primary)}
@keyframes rowin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.idx{font-family:var(--mono);font-size:12px;color:#C0C4CC}
.artist{font-size:12px;color:var(--dim);letter-spacing:.08em;margin-bottom:3px}
.title{font-size:15.5px;font-weight:600}

.meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.keyb{font-weight:700;font-size:15px;color:var(--primary);background:var(--blue-bg);
  border:1px solid rgba(61,90,169,.22);border-radius:9px;padding:5px 12px;
  cursor:pointer;letter-spacing:.04em;transition:.15s;user-select:none}
.keyb:hover{background:#E1EDFF;transform:translateY(-1px)}
.scale{font-size:12px;border-radius:6px;padding:4px 9px;border:1px solid}
.scale.major{color:#B77B12;border-color:rgba(230,162,60,.35);background:rgba(230,162,60,.1)}
.scale.minor{color:#2B6CB0;border-color:rgba(64,158,255,.32);background:rgba(64,158,255,.1)}

.pager{display:flex;justify-content:center;align-items:center;gap:8px;
  margin-top:24px;flex-wrap:wrap}
.pager button{border:1px solid var(--line);background:var(--card);color:var(--ink2);
  border-radius:8px;min-width:36px;height:36px;padding:0 12px;cursor:pointer;
  font-family:var(--mono);font-size:13px;transition:.15s}
.pager button:hover:not(:disabled):not(.cur){color:var(--primary);border-color:var(--primary)}
.pager button.cur{color:#fff;background:var(--primary);border-color:var(--primary);font-weight:700}
.pager button:disabled{opacity:.4;cursor:default}
.pager .info{font-size:12px;color:var(--dim);margin:0 10px;font-family:var(--mono)}

.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);
  background:var(--card);border:1px solid var(--line);color:var(--ink);
  padding:10px 18px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;
  transition:.25s;box-shadow:0 10px 30px rgba(31,42,68,.15);z-index:9}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast b{color:var(--primary);font-family:var(--mono)}

/* ===== 页脚 ===== */
.foot{background:#1F2A44;color:#8B98B8;text-align:center;padding:34px 20px;
  font-size:13px;margin-top:40px}
.foot p + p{margin-top:8px}
.foot code{font-family:var(--mono);color:var(--light);background:rgba(255,255,255,.08);
  padding:2px 7px;border-radius:5px}
.foot a{color:var(--light)}
.foot a:hover{text-decoration:underline}
/* 按需求隐藏：页脚「共 X 条记录 · 官方键优先展示」 */
.foot-note{display:none}

/* ===== 登录弹窗 ===== */
.login-modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;
  justify-content:center;padding:20px}
.login-modal-overlay{position:absolute;inset:0;background:rgba(15,23,42,.5);
  backdrop-filter:blur(4px)}
.login-card{position:relative;max-width:400px;width:100%;text-align:center;
  background:var(--card);border-radius:16px;padding:34px 28px 26px;
  box-shadow:0 24px 70px rgba(15,23,42,.3)}
.login-card .badge{display:inline-block;font-size:12px;font-weight:600;letter-spacing:3px;
  padding:6px 18px;border:1px solid rgba(61,90,169,.2);border-radius:999px;
  color:var(--primary);background:var(--blue-bg);margin-bottom:16px}
.login-card h1{font-size:24px;font-weight:700}
.login-card h1 em{font-style:normal;color:var(--primary)}
.login-card .tagline{margin:10px 0 24px;color:var(--dim);font-size:13.5px}
.login-form{display:flex;flex-direction:column;gap:12px}
.login-form input{width:100%;background:var(--card);border:1px solid #DCDFE6;
  border-radius:10px;height:46px;padding:0 16px;color:var(--ink);font-size:15px;
  font-family:var(--font);outline:0;transition:.2s}
.login-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(61,90,169,.1)}
.login-form input::placeholder{color:#C0C4CC}
.login-form button{background:var(--primary);color:#fff;border:0;border-radius:10px;
  height:46px;font-family:var(--font);font-weight:700;font-size:15px;letter-spacing:.14em;
  cursor:pointer;transition:.15s;margin-top:4px}
.login-form button:hover{background:var(--primary-d)}
.login-form button:disabled{opacity:.6;cursor:default}
.login-error{margin-top:14px;color:#F56C6C;font-size:13px;min-height:18px}
.login-close{margin-top:16px;border:0;background:none;color:var(--dim);font-size:13px;
  cursor:pointer;font-family:var(--font);width:100%;transition:.15s}
.login-close:hover{color:var(--ink2)}

/* ===== 客户端下载卡片 ===== */
.dl-mask{position:fixed;inset:0;z-index:99;display:flex;align-items:center;
  justify-content:center;background:rgba(15,23,42,.5);opacity:0;pointer-events:none;
  transition:.18s}
.dl-mask.on{opacity:1;pointer-events:auto}
.dl-card{position:relative;width:min(400px,calc(100vw - 40px));background:var(--card);
  border-radius:16px;padding:26px 24px 20px;box-shadow:0 18px 50px rgba(15,23,42,.3);
  transform:translateY(10px) scale(.98);transition:.18s}
.dl-mask.on .dl-card{transform:none}
.dl-x{position:absolute;top:10px;right:12px;border:0;background:none;font-size:22px;
  color:#C0C4CC;cursor:pointer;line-height:1}
.dl-x:hover{color:var(--ink2)}
.dl-title{font-size:19px;font-weight:700;text-align:center}
.dl-sub{margin:6px 0 18px;font-size:12.5px;color:var(--dim);text-align:center}
.dl-item{display:flex;align-items:center;gap:12px;padding:13px 14px;margin-bottom:10px;
  background:var(--bg);border:1px solid var(--line);border-radius:10px;transition:.15s}
.dl-item:hover{border-color:var(--primary);background:var(--blue-bg)}
.dl-icon{width:44px;height:44px;border-radius:10px;object-fit:cover;flex:none;
  border:1px solid var(--line);background:#fff}
.dl-meta{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.dl-meta b{font-size:14px}
.dl-meta i{font-style:normal;font-size:12px;color:var(--dim)}
.dl-go{flex:none;border-radius:8px;padding:7px 16px;font-size:13px;color:#fff;
  background:var(--primary)}
.dl-tip{margin-top:6px;font-size:11.5px;color:#C0C4CC;text-align:center}

@media (max-width:760px){
  .hero{padding:64px 0 72px}
  .hero h1{font-size:26px}
  .userbar{padding:16px 14px 0;gap:8px}
  .user-info{display:none!important}
  .feat{padding-top:40px}
  .row{grid-template-columns:1fr;gap:8px;padding:14px 16px}
  .idx{display:none}
  .meta{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}