:root{--page-bg:#e9edf2;--ink:#4e5d6b;--muted:#7c8994;--accent:#6d91ab;--light:#fff;--shadow-dark:#c7cdd3;--shadow-light:#fff;--radius:28px;font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);font-size:16px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--page-bg);color:var(--ink)}body.site-body{background-color:var(--page-bg);background-image:var(--page-image);background-position:center;background-size:cover;background-attachment:var(--page-attachment,scroll);min-height:100vh}.site-shell{width:min(1180px,calc(100% - 36px));margin:0 auto;padding:26px 0 80px}.soft-card{background:var(--page-bg);border:0;border-radius:var(--radius);box-shadow:12px 12px 24px var(--shadow-dark),-12px -12px 24px var(--shadow-light)}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit;color:var(--ink)}button{cursor:pointer;border:0}.topbar{height:78px;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.12rem;letter-spacing:.02em}.brand-mark{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:15px;color:#fff;background:#789bb3;box-shadow:inset 4px 4px 8px #5f8197,inset -4px -4px 8px #91b5ca;font-size:.8rem;letter-spacing:.08em}.live-time{font-variant-numeric:tabular-nums;font-weight:650;color:var(--accent);letter-spacing:.06em}.icon-link{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;box-shadow:6px 6px 12px var(--shadow-dark),-6px -6px 12px var(--shadow-light);font-size:1.2rem}.icon-link:active,.soft-button:active,.mini-button:active{box-shadow:inset 4px 4px 9px var(--shadow-dark),inset -4px -4px 9px var(--shadow-light);transform:translateY(1px)}.notice{margin:0 0 24px;padding:15px 20px;border-radius:18px;box-shadow:inset 4px 4px 9px var(--shadow-dark),inset -4px -4px 9px var(--shadow-light)}.notice.error{color:#a75d62}.carousel{height:390px;overflow:hidden;position:relative;margin-bottom:56px}.slide{position:absolute;inset:0;opacity:0;visibility:hidden;overflow:hidden;border-radius:inherit;transition:opacity .65s ease,transform .65s ease}.slide.is-active{opacity:1;visibility:visible;z-index:1}.slide img,.slide video{width:100%;height:100%;object-fit:cover;display:block}.slide:has(img[src=""]){background:#dce2e8}.slide-shade{position:absolute;inset:0;background:rgba(45,57,67,.16)}.slide-copy{position:absolute;left:9%;bottom:17%;max-width:600px;color:#fff;text-shadow:0 2px 12px rgba(30,40,48,.35)}.slide-copy p{margin:0 0 8px;font-size:.98rem}.slide-copy h1{margin:0 0 20px;font-size:clamp(2rem,5vw,3.8rem);line-height:1.1}.slide[data-animation=slide]{transform:translateX(35px)}.slide.is-active[data-animation=slide]{transform:translateX(0)}.slide[data-animation=zoom]{transform:scale(1.08)}.slide.is-active[data-animation=zoom]{transform:scale(1)}.on-media{color:#f8fbfd!important;background:#ecf1f4!important}.dots{position:absolute;z-index:3;bottom:25px;left:9%;display:flex;gap:10px}.dot{width:34px;height:9px;border-radius:9px;background:rgba(255,255,255,.5);box-shadow:none}.dot.active{background:#fff;width:52px}.empty-hero{height:100%;display:grid;place-content:center;text-align:center;justify-items:center;padding:30px}.empty-hero h1{font-size:clamp(1.8rem,4vw,3rem);margin:20px 0 8px}.empty-hero p{color:var(--muted)}.section-heading{margin:0 0 22px;padding-left:8px}.section-heading p{margin:0 0 5px;color:var(--accent);font-weight:700;font-size:.82rem;letter-spacing:.15em;text-transform:uppercase}.section-heading h2{font-size:1.85rem;margin:0}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;margin-bottom:58px}.category-card{padding:26px}.category-card h3{margin:0 0 18px;font-size:1.15rem}.link-list{display:grid;gap:13px}.nav-link{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:19px;box-shadow:6px 6px 12px var(--shadow-dark),-6px -6px 12px var(--shadow-light);transition:transform .2s ease}.nav-link:hover{transform:translateY(-2px)}.link-icon{width:35px;height:35px;display:grid;place-items:center;border-radius:12px;background:#dfe5ea;color:var(--accent);font-weight:700;box-shadow:inset 3px 3px 6px var(--shadow-dark),inset -3px -3px 6px var(--shadow-light)}.link-info{display:grid;gap:3px;min-width:0;flex:1}.link-info b{font-size:.98rem}.link-info small,.nav-link em{font-size:.76rem;color:var(--muted);font-style:normal}.friend-area{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}.friend-list{padding:24px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;min-height:130px}.friend-item{padding:15px;border-radius:18px;display:grid;grid-template-columns:38px 1fr;gap:2px 10px;box-shadow:6px 6px 12px var(--shadow-dark),-6px -6px 12px var(--shadow-light)}.friend-item img,.friend-item>span{width:38px;height:38px;border-radius:12px;object-fit:cover;grid-row:span 2;background:#d6dfe6;display:grid;place-items:center;color:var(--accent);font-weight:bold}.friend-item small{font-size:.76rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.friend-form{padding:24px}.friend-form h3{margin:0 0 18px}.form-grid{display:grid;gap:12px;margin-bottom:14px}.form-grid textarea{grid-column:1/-1;min-height:80px}.soft-button{background:var(--page-bg);padding:13px 22px;border-radius:16px;box-shadow:7px 7px 14px var(--shadow-dark),-7px -7px 14px var(--shadow-light);color:var(--accent);font-weight:700}.soft-button:hover{color:#4d7998}.form-grid input,.form-grid textarea{width:100%}.music-player{position:fixed;right:24px;bottom:24px;z-index:10;min-width:260px;padding:14px 16px}.player-toggle{display:none}.player-panel{display:grid;gap:12px}.track-meta{display:grid;gap:3px}.track-meta small{color:var(--muted);font-size:.78rem}.player-controls{display:flex;align-items:center;gap:9px}.player-controls button{width:34px;height:34px;border-radius:12px;background:var(--page-bg);box-shadow:4px 4px 8px var(--shadow-dark),-4px -4px 8px var(--shadow-light);color:var(--accent)}.player-controls button[data-play]{width:40px;height:40px}.player-controls input{width:82px;accent-color:var(--accent)}.playlist{border-top:1px solid #d7dde2;padding-top:8px;display:grid;gap:6px;max-height:120px;overflow:auto}.playlist button{border-radius:10px;padding:6px 8px;text-align:left;background:transparent;color:var(--muted);font-size:.78rem}.playlist button.current{color:var(--accent);font-weight:700}.muted{color:var(--muted)}
/* Admin */.admin-body{min-height:100vh;padding:24px}.admin-layout{max-width:1320px;margin:auto;display:grid;grid-template-columns:225px 1fr;gap:28px}.admin-sidebar{min-height:calc(100vh - 48px);padding:25px 17px;display:flex;flex-direction:column}.admin-sidebar nav{display:grid;gap:9px;margin-top:40px}.admin-sidebar nav a{padding:14px 17px;border-radius:16px;color:var(--muted);font-weight:600}.admin-sidebar nav a.active,.admin-sidebar nav a:hover{color:var(--accent);box-shadow:inset 5px 5px 10px var(--shadow-dark),inset -5px -5px 10px var(--shadow-light)}.sidebar-bottom{margin-top:auto;display:grid;gap:13px;padding:15px 17px;font-size:.82rem;color:var(--muted)}.admin-main{min-width:0}.admin-header{height:78px;display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.admin-header p{margin:0;color:var(--accent);font-size:.82rem}.admin-header h1{margin:4px 0 0;font-size:2rem}.admin-user{padding:11px 16px;border-radius:15px;box-shadow:inset 4px 4px 8px var(--shadow-dark),inset -4px -4px 8px var(--shadow-light);font-size:.85rem}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px}.stat{padding:22px}.stat small{color:var(--muted)}.stat strong{display:block;font-size:2.1rem;margin-top:11px;color:var(--accent)}.content-card,.data-card{padding:26px}.content-card h2,.data-card h2{margin:0 0 18px;font-size:1.15rem}.admin-two-col{display:grid;grid-template-columns:minmax(300px,.9fr) minmax(300px,1.1fr);gap:24px;align-items:start}.form-card{padding:26px;display:grid;gap:14px}.form-card h2{margin:0 0 5px;font-size:1.15rem}.form-card label{display:grid;gap:7px;font-size:.82rem;font-weight:650}.form-card input,.form-card textarea,.form-card select,.inline-form select,.inline-form input{width:100%;border:0;border-radius:14px;background:var(--page-bg);padding:12px 14px;outline:0;box-shadow:inset 4px 4px 8px var(--shadow-dark),inset -4px -4px 8px var(--shadow-light)}.form-card textarea{min-height:90px;resize:vertical}.form-card input[type=color]{padding:3px;height:44px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.check{display:flex!important;align-items:center;grid-template-columns:auto 1fr!important;gap:9px!important}.check input{width:auto}.data-card{display:grid;gap:4px}.row-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid #d7dde2}.row-item:last-child{border-bottom:0}.row-item>span{display:grid;gap:4px;min-width:0}.row-item b,.row-item span{overflow:hidden;text-overflow:ellipsis}.row-item small{color:var(--muted);font-size:.75rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row-item>div,.inline-form{display:flex;align-items:center;gap:7px;flex-shrink:0}.row-item form{margin:0}.mini-button{padding:8px 11px;border-radius:11px;background:var(--page-bg);box-shadow:4px 4px 8px var(--shadow-dark),-4px -4px 8px var(--shadow-light);font-size:.75rem;color:var(--accent);white-space:nowrap}.mini-button.danger{color:#a75d62}.table-card{margin-top:24px}.narrow-card{max-width:570px}.friend-row{align-items:flex-start}.friend-row .inline-form input{width:70px;padding:8px}.friend-row .inline-form select{width:105px;padding:8px}.admin-login{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(420px,100%);padding:36px}.login-brand{margin-bottom:30px}.login-card h1{font-size:1.8rem;margin:0 0 22px}.login-card form{display:grid;gap:17px}.login-card label{display:grid;gap:8px;font-size:.82rem;font-weight:650}.login-card input{border:0;border-radius:15px;background:var(--page-bg);padding:13px;box-shadow:inset 5px 5px 9px var(--shadow-dark),inset -5px -5px 9px var(--shadow-light);outline:0}.login-card .muted{font-size:.78rem;margin-top:22px}.install-page{min-height:100vh;display:grid;place-items:center;padding:20px}.install-card{width:min(580px,100%);padding:42px;text-align:center}.install-card h1{margin:20px 0 12px}
@media(max-width:860px){.site-shell{width:min(100% - 24px,680px);padding-top:12px}.topbar{margin-bottom:18px;height:68px;padding:11px 16px}.live-time{font-size:.78rem}.carousel{height:320px;margin-bottom:40px}.category-grid,.friend-area{grid-template-columns:1fr}.friend-list{grid-template-columns:1fr}.music-player{right:12px;bottom:12px;min-width:0;width:calc(100% - 24px)}.admin-body{padding:12px}.admin-layout{grid-template-columns:1fr;gap:16px}.admin-sidebar{min-height:auto;padding:15px}.admin-sidebar .brand{margin-bottom:12px}.admin-sidebar nav{display:flex;overflow:auto;margin:0 -3px;padding:4px}.admin-sidebar nav a{white-space:nowrap;padding:10px 13px;font-size:.82rem}.sidebar-bottom{display:none}.admin-header{height:auto;margin:8px 4px 20px}.admin-header h1{font-size:1.55rem}.stat-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat{padding:17px}.stat strong{font-size:1.65rem}.admin-two-col{grid-template-columns:1fr}.row-item{align-items:flex-start}.row-item>div{flex-wrap:wrap;justify-content:flex-end}.friend-row{flex-wrap:wrap}.friend-row .inline-form{order:3;width:100%}.friend-row .inline-form select{flex:1}.field-row{grid-template-columns:1fr}}
@media(max-width:470px){.brand>span:last-child{display:none}.carousel{height:285px}.slide-copy{left:8%;bottom:20%}.slide-copy h1{font-size:2rem}.category-card,.friend-form,.friend-list,.form-card,.data-card{padding:18px}.nav-link em{display:none}.topbar{border-radius:22px}.admin-header .admin-user{font-size:.72rem;padding:8px}.player-controls input{width:58px}}
.playlist,.row-item{border:0}
.installer-wide{width:min(720px,100%);text-align:left}.installer-wide>.brand-mark,.installer-wide>h1,.installer-wide>.muted{text-align:center;margin-left:auto;margin-right:auto}.installer-wide form{display:grid;gap:14px}.installer-wide h2{font-size:1.05rem;margin:16px 0 0;color:var(--accent)}

/* Reference tuning: calm medium-grey Soft-UI surface with high relief. */
:root{
  --page-bg:#dfe3e7;
  --ink:#415267;
  --muted:#728091;
  --accent:#54728d;
  --shadow-dark:#b8bec5;
  --shadow-light:#ffffff;
  --radius:34px;
}
body,
body.site-body,
.admin-body,
.admin-login,
.install-page{background-color:var(--page-bg);color:var(--ink)}
.soft-card,
.topbar,
.carousel,
.category-card,
.friend-list,
.friend-form,
.music-player,
.admin-sidebar,
.stat,
.content-card,
.data-card,
.form-card,
.login-card,
.install-card{
  background:var(--page-bg);
  border-radius:var(--radius);
  box-shadow:20px 20px 42px var(--shadow-dark),-20px -20px 42px var(--shadow-light);
}
.topbar{margin-bottom:42px;padding:17px 28px}
.site-shell{padding-top:34px;padding-bottom:110px}
.carousel{margin-bottom:72px}
.category-grid{gap:34px;margin-bottom:78px}
.category-card{padding:31px}
.section-heading{margin-bottom:30px;padding-left:14px}
.section-heading h2{font-size:2rem}
.nav-link,
.friend-item,
.icon-link,
.soft-button,
.mini-button,
.player-controls button,
.admin-user,
.admin-sidebar nav a.active,
.admin-sidebar nav a:hover{
  border-radius:22px;
  box-shadow:10px 10px 20px var(--shadow-dark),-10px -10px 20px var(--shadow-light);
}
.nav-link{padding:16px 17px}
.link-icon{border-radius:17px;box-shadow:inset 6px 6px 12px var(--shadow-dark),inset -6px -6px 12px var(--shadow-light)}
.soft-button{padding:15px 26px}
.mini-button{padding:10px 14px}
.notice{border-radius:24px;box-shadow:inset 7px 7px 15px var(--shadow-dark),inset -7px -7px 15px var(--shadow-light)}
.form-card input,.form-card textarea,.form-card select,
.inline-form select,.inline-form input,
.login-card input,
.form-grid input,.form-grid textarea{
  background:var(--page-bg);
  border-radius:21px;
  box-shadow:inset 7px 7px 15px var(--shadow-dark),inset -7px -7px 15px var(--shadow-light);
}
.form-card input,.form-card textarea,.form-card select,.inline-form select,.inline-form input,.login-card input{padding:14px 17px}
.friend-area{gap:34px;margin-bottom:52px}
.friend-list,.friend-form{padding:31px}
.music-player{right:30px;bottom:30px;padding:18px 20px}
.player-controls button{box-shadow:8px 8px 16px var(--shadow-dark),-8px -8px 16px var(--shadow-light)}
.playlist{padding-top:13px;box-shadow:inset 0 6px 12px -10px var(--shadow-dark)}
.admin-body{padding:34px}
.admin-layout{gap:38px}
.admin-sidebar{padding:31px 21px}
.admin-main{padding:0 8px}
.admin-header{margin-bottom:34px}
.stat-grid{gap:26px;margin-bottom:36px}
.stat{padding:28px}
.stat strong{font-size:2.35rem}
.admin-two-col{gap:34px}
.data-card,.content-card,.form-card{padding:31px}
.table-card{margin-top:34px}
.row-item{padding:17px 2px}
.row-item:last-child{box-shadow:none}
.admin-sidebar nav{gap:14px;margin-top:48px}
.admin-sidebar nav a{border-radius:22px;padding:16px 19px}
.login-card{padding:43px}
.install-card{padding:48px}
.slide-shade{display:none}
.dot{background:#c4ccd3;box-shadow:6px 6px 12px var(--shadow-dark),-6px -6px 12px var(--shadow-light)}
.dot.active{background:#ffffff;box-shadow:inset 4px 4px 8px var(--shadow-dark),inset -4px -4px 8px var(--shadow-light)}
@media(max-width:860px){
  .site-shell{padding-top:18px;padding-bottom:90px}
  .topbar{margin-bottom:28px;padding:14px 19px}
  .carousel{margin-bottom:52px}
  .category-grid{gap:26px;margin-bottom:58px}
  .category-card,.friend-list,.friend-form,.form-card,.data-card{padding:24px}
  .music-player{right:16px;bottom:16px}
  .admin-body{padding:18px}
  .admin-layout{gap:24px}
}