/* 游者极光堂 yzjgt.cn · 浅色极光主题（青 #14b8a6 → 靛 #6366f1 → 粉 #ec4899） */
:root{--bg:#f6f7fb;--card:#fff;--ink:#1e293b;--sub:#64748b;--line:#e5e7f0;--pri:#6366f1;--pri2:#4f46e5;--g:linear-gradient(120deg,#14b8a6 0%,#6366f1 55%,#ec4899 100%);--r:16px;--sh:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif}
a{color:var(--pri2);text-decoration:none}a:hover{color:#db2777}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{line-height:1.35;margin:0 0 .6em;color:#0f172a}h1{font-size:clamp(24px,3.4vw,34px)}h2{font-size:22px}h3{font-size:18px}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:6px 10px;z-index:99}
.grad{background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent}
.kick{font-size:13px;letter-spacing:.06em;color:var(--pri);font-weight:600;margin:0 0 .4em;text-transform:uppercase}
.muted{color:var(--sub);font-size:14px}
/* header */
.hd{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.6) blur(12px);-webkit-backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--line)}
.hd:before{content:"";display:block;height:3px;background:var(--g)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}.brand b{display:block;font-size:19px;letter-spacing:.04em}.brand small{display:block;font-size:11.5px;color:var(--sub);line-height:1.2}
.hd-cta{background:var(--g);color:#fff!important;padding:8px 16px;border-radius:999px;font-weight:600;font-size:14px;box-shadow:0 6px 16px rgba(99,102,241,.28)}
.nav{border-top:1px solid var(--line)}.nav-in{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;height:44px;align-items:center}.nav-in::-webkit-scrollbar{display:none}
.nav a{white-space:nowrap;color:#334155;padding:6px 12px;border-radius:999px;font-size:14.5px}.nav a:hover{background:#eef2ff}.nav a[aria-current]{background:#eef2ff;color:var(--pri2);font-weight:600}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:999px;font-weight:600;font-size:15px;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px)}.btn-lg{padding:13px 26px;font-size:16px}
.btn-g{background:var(--g);color:#fff!important;box-shadow:0 8px 20px rgba(99,102,241,.3)}
.btn-o{background:#fff;color:var(--pri2)!important;border:1.5px solid #c7d2fe}
.btn-w{background:#fff;color:var(--pri2)!important}
/* hero */
.hero-h{position:relative;overflow:hidden;background:radial-gradient(900px 380px at 10% 0%,rgba(20,184,166,.16),transparent 60%),radial-gradient(800px 420px at 90% 10%,rgba(236,72,153,.14),transparent 60%),radial-gradient(700px 400px at 50% 100%,rgba(99,102,241,.14),transparent 60%),#fbfcff;border-bottom:1px solid var(--line)}
.hh-in{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center;padding:56px 20px}
.hh-t h1{font-size:clamp(28px,4.2vw,44px)}.hh-t>p{color:#475569;font-size:17px;max-width:620px}
.hh-b{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}
.hot{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px}.hot span{color:var(--sub)}
.hot a{background:#fff;border:1px solid var(--line);padding:4px 12px;border-radius:999px;color:#334155}.hot a:hover{border-color:#a5b4fc;color:var(--pri2)}
.hh-f{position:relative;display:block;border-radius:22px;overflow:hidden;box-shadow:0 20px 50px rgba(79,70,229,.22);background:#fff}
.hh-f img,.hh-f .tcov{width:100%;aspect-ratio:16/10;object-fit:cover}
.hh-f>span{position:absolute;left:0;right:0;bottom:0;padding:40px 18px 16px;background:linear-gradient(transparent,rgba(15,23,42,.82));color:#fff}.hh-f small{opacity:.85}.hh-f b{display:block;font-size:17px;line-height:1.45}
/* sections */
.sec{margin:44px 0}.sec-h{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px}.sec-h h2{margin:0;position:relative;padding-left:14px}.sec-h h2:before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:5px;border-radius:4px;background:var(--g)}.sec-h a{font-size:14px}
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.catc{background:#fff;border-radius:var(--r);padding:18px;box-shadow:var(--sh);border:1px solid var(--line);color:var(--ink);display:flex;flex-direction:column;gap:4px;transition:transform .15s}
.catc:hover{transform:translateY(-3px);color:var(--ink)}.catc span{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:13px;color:#fff;background:var(--c);margin-bottom:6px}.catc small{color:var(--sub);font-size:12.5px}
.grid{display:grid;gap:20px}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);border:1px solid var(--line);transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(79,70,229,.14)}.card-a{color:var(--ink);display:block;height:100%}
.card-i{position:relative;aspect-ratio:16/9;background:#eef2ff;overflow:hidden}.card-i img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;left:10px;top:10px;background:rgba(255,255,255,.92);color:var(--c);font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;border:1px solid currentColor}
.card-b{padding:14px 16px 16px}.card-b h3{font-size:16px;margin:0 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-b p{margin:0 0 8px;color:var(--sub);font-size:13.5px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-m{display:flex;justify-content:space-between;font-size:12.5px;color:#94a3b8}
.tcov{width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:16px;color:#fff;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.28),transparent 45%),linear-gradient(135deg,var(--c),#6366f1 70%,#ec4899)}
.tcov span{font-size:12px;font-weight:800;letter-spacing:.1em;border:1.5px solid rgba(255,255,255,.7);border-radius:8px;padding:2px 8px;margin-bottom:8px}.tcov b{font-size:20px;line-height:1.3}.tcov small{opacity:.85;font-size:12px}
.tl{list-style:none;margin:0;padding:6px 0 10px;display:flex;gap:14px;overflow-x:auto}.tl li{flex:0 0 200px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:var(--sh);position:relative}
.tl time{display:inline-block;font-weight:800;font-size:13px;color:#fff;background:var(--g);padding:1px 10px;border-radius:999px}.tl b{display:block;margin:6px 0 2px}.tl small{color:var(--sub)}
.tagg{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tagc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--sh);color:var(--ink);display:flex;flex-direction:column;gap:2px}.tagc b{color:var(--pri2);font-size:17px}.tagc span{font-size:14px;color:#475569}.tagc small{color:#94a3b8}.tagc:hover{border-color:#a5b4fc;color:var(--ink)}
.ctab{display:flex;gap:18px;justify-content:space-between;align-items:center;margin:28px 0;padding:20px 22px;border-radius:var(--r);background:linear-gradient(120deg,rgba(20,184,166,.1),rgba(99,102,241,.12),rgba(236,72,153,.1));border:1px solid #dfe3fb}
.ctab b{font-size:17px}.ctab p{margin:4px 0 0;color:#475569;font-size:14.5px}.ctab .btn{flex:none}
/* page header */
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:18px 0;font-size:13.5px;color:var(--sub)}.crumbs li+li:before{content:"›";margin:0 6px;color:#cbd5e1}.crumbs li[aria-current]{color:#334155;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ph{display:flex;gap:18px;align-items:flex-start;background:#fff;border-radius:20px;padding:26px;box-shadow:var(--sh);border:1px solid var(--line);margin-bottom:24px;position:relative;overflow:hidden}
.ph:after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:var(--g);opacity:.12}
.ph-ic{flex:none;width:60px;height:60px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:800;background:var(--c,#6366f1);font-size:15px}.tagh .ph-ic{background:var(--g);font-size:28px}
.ph p{color:#475569;margin:0 0 10px}
/* article */
.art-w{max-width:900px}.art-g{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}.art-g .crumbs,.art-g .rel{grid-column:1/-1}
.art{background:#fff;border-radius:20px;padding:28px 30px;box-shadow:var(--sh);border:1px solid var(--line)}
.art-h{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:20px}.art-h h1{font-size:clamp(22px,3vw,30px)}.lead{color:#475569;font-size:16.5px}
.chips,.tags{display:flex;flex-wrap:wrap;gap:8px}.tags{margin:16px 0;align-items:center}.tags b{font-size:14px}
.ch{font-size:13px;padding:3px 12px;border-radius:999px;background:#f1f5f9;color:#475569}.ch-l{background:#eef2ff;color:var(--pri2)}.ch-q{background:#fff;border:1px solid #dfe3fb;color:#334155}.ch-q:hover{border-color:var(--pri)}
.hero{margin:0 0 20px;border-radius:14px;overflow:hidden;background:#eef2ff}.hero .tcov{aspect-ratio:16/7}
.lead-box{background:#f8faff;border-left:4px solid var(--pri);border-radius:10px;padding:14px 18px;margin-bottom:18px}.lead-box b{color:var(--pri2)}.lead-box p{margin:4px 0 0}
.tbl{overflow-x:auto;margin:0 0 18px}table{border-collapse:collapse;width:100%;font-size:14.5px}th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}th{color:var(--sub);font-weight:600;white-space:nowrap;background:#fafbff}.info th{width:120px}
.body{margin:24px 0}.body h2{padding-bottom:8px;border-bottom:2px solid #eef2ff}.body p{margin:0 0 .9em}.body h3{margin-top:1.2em;color:#3730a3}
figure{margin:18px 0}figure img{border-radius:12px;margin:0 auto}figcaption{text-align:center;font-size:13px;color:#94a3b8;margin-top:6px}.zoom{display:block}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding:10px 12px 10px 48px;background:#fafbff;border-radius:10px;margin-bottom:8px}.steps li:before{content:counter(s);position:absolute;left:12px;top:10px;width:26px;height:26px;border-radius:50%;background:var(--g);color:#fff;font-weight:700;font-size:13px;display:grid;place-items:center}
.qa{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px;background:#fff}.qa summary{font-weight:600;cursor:pointer}.qa p{margin:8px 0 0;color:#475569}
.gl{list-style:none;padding:0}.gl li{padding:10px 0;border-bottom:1px dashed var(--line)}.gl p{margin:2px 0 0;color:#475569;font-size:14.5px}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.pn a{background:#f8faff;border-radius:12px;padding:12px 14px;font-size:14px;color:var(--ink);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.pn a:last-child{text-align:right}.pn small{display:block;color:var(--pri)}
.side{position:sticky;top:120px;display:flex;flex-direction:column;gap:16px}.side-box{background:#fff;border-radius:16px;padding:18px;box-shadow:var(--sh);border:1px solid var(--line)}.side-box h2{font-size:16px}
.cloud{display:flex;flex-wrap:wrap;gap:8px}.cloud a{font-size:13.5px;background:#eef2ff;padding:3px 11px;border-radius:999px}
.side-cta{background:linear-gradient(150deg,#ecfeff,#eef2ff 50%,#fdf2f8)}.side-cta p{font-size:14px;color:#475569}
.mini{list-style:none;padding:0;margin:0}.mini li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.5}
.narrow{max-width:900px}
.e404{text-align:center;padding:60px 0 30px}.e404>b{font-size:110px;font-weight:900;line-height:1;display:block}
/* band + footer */
.band{background:var(--g);color:#fff;margin-top:56px}.band-in{display:flex;gap:30px;align-items:center;justify-content:space-between;padding:40px 20px}.band h2{color:#fff}.band p{margin:0;opacity:.92}.band .kick{color:#fff;opacity:.85}
.ft{background:#0f172a;color:#94a3b8;font-size:14px}.ft-in{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:28px;padding:40px 20px}.ft h3{color:#e2e8f0;font-size:15px}.ft ul{list-style:none;padding:0;margin:0}.ft li{margin:4px 0}.ft a{color:#cbd5e1}.ft a:hover{color:#fff}
.ft .brand b{color:#fff}.ft-tg{display:flex;flex-wrap:wrap;gap:4px 12px}.ft-cp{border-top:1px solid #1e293b;padding:16px 20px;font-size:12.5px;color:#64748b}
@media (max-width:1024px){.cats{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(2,1fr)}.art-g{grid-template-columns:1fr}.side{position:static}.ft-in{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.hh-in{grid-template-columns:1fr;padding:32px 20px;gap:24px}.g3,.tagg{grid-template-columns:1fr 1fr}.cats{grid-template-columns:1fr 1fr}.art{padding:20px 16px}.ctab,.band-in{flex-direction:column;align-items:flex-start}.brand small{display:none}}
@media (max-width:520px){.g3,.g4,.tagg{grid-template-columns:1fr}.wrap{padding:0 14px}.ph{padding:18px}.ft-in{grid-template-columns:1fr}.pn{grid-template-columns:1fr}.pn a:last-child{text-align:left}}