:root{--p:#4f46e5;--p2:#6366f1;--p-50:#eef2ff;--p-100:#e0e7ff;--sky:#0ea5e9;--coral:#f97362;--amber:#f59e0b;--green:#10b981;--ink:#0f172a;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;--bg:#f8fafc;--r:16px;--sh:0 1px 2px rgba(15,23,42,.04),0 4px 16px rgba(15,23,42,.06);--sh2:0 12px 40px rgba(79,70,229,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter","PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;letter-spacing:.01em}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3{color:var(--ink);line-height:1.3;letter-spacing:-.01em}
.ic{width:1.15em;height:1.15em;vertical-align:-.2em;flex:none}
/* nav */
header.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid rgba(226,232,240,.8);transition:box-shadow .2s}
header.nav.scrolled{box-shadow:0 4px 20px rgba(15,23,42,.06)}
header.nav .wrap{display:flex;align-items:center;height:68px;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}.logo .mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--p),var(--sky));display:grid;place-items:center;color:#fff;font-size:15px}.logo span{color:var(--p)}
.menu{display:flex;gap:26px;flex:1}.menu a{color:#475569;font-size:15px;font-weight:500;position:relative;padding:4px 0}.menu a:hover,.menu a.on{color:var(--p)}.menu a.on:after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--p);border-radius:2px}
.navr{display:flex;gap:10px;align-items:center}.burger{display:none;background:none;border:0;font-size:24px;cursor:pointer}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--p-50);color:var(--p);padding:4px 12px;border-radius:99px;font-size:13px;font-weight:600}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--p);color:#fff;border:0;border-radius:12px;padding:12px 22px;font:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;white-space:nowrap}
.btn:hover{background:#4338ca;transform:translateY(-1px);box-shadow:var(--sh2)}.btn:disabled{background:#94a3b8;cursor:not-allowed;transform:none;box-shadow:none}
.btn.ghost{background:#fff;color:var(--p);border:1px solid var(--p-100)}.btn.ghost:hover{background:var(--p-50)}
.btn.coral{background:var(--coral)}.btn.coral:hover{background:#ef5b48;box-shadow:0 12px 30px rgba(249,115,98,.3)}
.btn.white{background:#fff;color:var(--p)}.btn.lg{padding:15px 30px;font-size:16px;border-radius:14px}.btn.sm{padding:7px 14px;font-size:14px;border-radius:10px}.btn.block{width:100%}
/* hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1000px 500px at 85% -10%,#e0f2fe 0,transparent 60%),radial-gradient(800px 500px at -10% 110%,#eef2ff 0,transparent 60%),#fff;padding:72px 0 64px}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:50px;margin:18px 0;font-weight:800}.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--p),var(--sky));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:18px;color:#475569;margin:0 0 28px;max-width:540px}.hero .btns{display:flex;gap:12px;flex-wrap:wrap}
.hero-img{position:relative}.hero-img img{border-radius:28px;box-shadow:var(--sh2)}
.float{position:absolute;background:#fff;border-radius:14px;box-shadow:var(--sh);padding:10px 14px;font-size:13px;display:flex;gap:10px;align-items:center;animation:bob 4s ease-in-out infinite}.float b{display:block;color:var(--ink);font-size:15px}
.float.f1{left:-24px;bottom:40px}.float.f2{right:-16px;top:28px;animation-delay:1.5s}
@keyframes bob{50%{transform:translateY(-8px)}}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}.stats div{padding-left:14px;border-left:3px solid var(--p-100)}.stats b{display:block;font-size:28px;color:var(--ink);font-weight:800}.stats span{font-size:13px;color:var(--muted)}
.ex{display:inline-block;font-size:11px;font-weight:600;color:#b45309;background:#fef3c7;border-radius:6px;padding:1px 6px;vertical-align:middle;letter-spacing:0}
/* sections */
section{padding:84px 0}.sec-h{text-align:center;max-width:680px;margin:0 auto 48px}.sec-h h2{font-size:34px;margin:12px 0 10px}.sec-h p{color:var(--muted);margin:0;font-size:16px}
.alt{background:#fff}.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border-radius:var(--r);padding:26px;box-shadow:var(--sh);border:1px solid #eef2f7;transition:transform .2s,box-shadow .2s}
.hover:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.feat .ibox{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:22px;margin-bottom:14px}.feat h3{margin:0 0 6px;font-size:18px}.feat p{margin:0;color:var(--muted);font-size:15px}
.c1{background:#eef2ff;color:var(--p)}.c2{background:#e0f2fe;color:var(--sky)}.c3{background:#ffe4e0;color:var(--coral)}.c4{background:#d1fae5;color:var(--green)}.c5{background:#fef3c7;color:var(--amber)}
.course{position:relative;overflow:hidden}.course .n{position:absolute;right:16px;top:8px;font-size:56px;font-weight:800;color:#f1f5f9}.course ul{padding:0;margin:12px 0 0;list-style:none;color:var(--muted);font-size:14px}.course li{display:flex;gap:6px;align-items:center;margin-top:4px}.course li .ic{color:var(--green)}
.steps{counter-reset:s;position:relative}.step{text-align:center}.step .num{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,var(--p),var(--sky));color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px;box-shadow:var(--sh2)}
.story{padding:0;overflow:hidden}.story img{aspect-ratio:4/3;object-fit:cover;width:100%}.story .b{padding:22px}.story .res{display:flex;gap:18px;margin-top:12px}.story .res b{color:var(--p);font-size:22px;display:block}.story .res span{font-size:12px;color:var(--muted)}
/* carousel */
.carousel{position:relative;overflow:hidden}.track{display:flex;transition:transform .6s cubic-bezier(.2,.8,.2,1)}.slide{flex:0 0 calc(100%/3);padding:0 11px}
.tm{height:100%}.tm .q{font-size:15px;color:#334155;margin:12px 0 18px}.tm .who{display:flex;gap:12px;align-items:center}.tm .av{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700}
.dots{display:flex;justify-content:center;gap:8px;margin-top:24px}.dots button{width:8px;height:8px;border-radius:99px;border:0;background:#cbd5e1;cursor:pointer;transition:all .3s;padding:0}.dots button.on{width:28px;background:var(--p)}
.cnav{position:absolute;top:40%;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;cursor:pointer;box-shadow:var(--sh);z-index:2;font-size:18px;color:var(--p)}.cnav.l{left:0}.cnav.r{right:0}
.cview{margin:0 48px;overflow:hidden}@media(max-width:720px){.cview{margin:0}}
.stars{color:var(--amber);letter-spacing:1px}
/* pricing */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column}.plan.hot{border:2px solid var(--p);box-shadow:var(--sh2);transform:translateY(-6px)}
.plan .tagx{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--coral);color:#fff;font-size:12px;font-weight:700;padding:3px 12px;border-radius:99px;white-space:nowrap}.plan.hot .tagx{background:var(--p)}
.plan h3{margin:4px 0 2px;font-size:18px}.plan .pr{font-size:38px;font-weight:800;color:var(--ink);margin:12px 0 0}.plan .pr small{font-size:15px;color:var(--muted);font-weight:500}.plan .orig{color:#94a3b8;text-decoration:line-through;font-size:14px}
.plan .per{color:var(--coral);font-weight:700;font-size:14px}.plan ul{list-style:none;padding:0;margin:16px 0 22px;color:#475569;font-size:14px;flex:1}.plan li{display:flex;gap:8px;margin-top:8px}.plan li .ic{color:var(--green);margin-top:3px}
/* faq */
.faq{max-width:820px;margin:0 auto}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 22px;transition:box-shadow .2s}.faq details[open]{box-shadow:var(--sh)}
.faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:600;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-size:22px;color:var(--p);transition:transform .25s}.faq details[open] summary:after{transform:rotate(45deg)}.faq details p{margin:0 0 18px;color:var(--muted)}
.cta{background:linear-gradient(135deg,var(--p) 0,#7c3aed 55%,var(--sky) 130%);color:#fff;border-radius:28px;padding:56px 40px;display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:30px;position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.08);right:-80px;top:-120px}.cta h2{color:#fff;font-size:32px;margin:0 0 10px}.cta p{opacity:.9;margin:0}
.cta form{display:flex;gap:10px;flex-wrap:wrap;position:relative}.cta input{flex:1;min-width:180px;border:0}
/* forms */
select,input,textarea{font:inherit;font-size:15px;padding:11px 14px;border:1px solid #cbd5e1;border-radius:12px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s;width:auto}
select:focus,input:focus,textarea:focus{outline:0;border-color:var(--p2);box-shadow:0 0 0 4px rgba(99,102,241,.15)}
form .row{display:flex;flex-direction:column;margin-bottom:16px}form .row label{font-weight:600;margin-bottom:6px;font-size:14px;color:#334155}form .row input,form .row select,form .row textarea{width:100%}
.err{color:#e11d48;font-size:14px;min-height:1.2em;margin:4px 0}
/* teacher cards */
.filters{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;background:#fff;padding:16px;border-radius:var(--r);box-shadow:var(--sh)}
.tcard{display:flex;flex-direction:column;padding:0;overflow:hidden}.tcard .top{position:relative;padding:22px 22px 0;display:flex;gap:14px;align-items:center}
.tcard .band{height:64px;margin-bottom:-44px}.tcard .bd{padding:14px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.avatar{width:72px;height:72px;border-radius:50%;flex:none;border:3px solid #fff;box-shadow:0 2px 10px rgba(15,23,42,.12);object-fit:cover;background:#fff}.avatar.lg{width:128px;height:128px}
.tag{display:inline-block;background:var(--p-50);color:#4338ca;font-size:12px;font-weight:600;padding:3px 10px;border-radius:99px;margin:0 6px 4px 0}
.meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:13px}.meta span{display:inline-flex;gap:4px;align-items:center}
.tfoot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f1f5f9;padding-top:14px;margin-top:auto}
.cost{font-weight:800;color:var(--ink);font-size:18px}.cost small{color:var(--muted);font-weight:500;font-size:13px}.muted{color:var(--muted);font-size:14px}.price{color:var(--coral);font-weight:800}
.vid{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--coral);font-weight:600}
/* detail */
.page-h{background:linear-gradient(180deg,#eef2ff,transparent);padding:40px 0 10px}
.detail{display:grid;grid-template-columns:1fr 340px;gap:28px;padding:20px 0 40px;align-items:start}
.video{position:relative;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;background:linear-gradient(135deg,#1e1b4b,#312e81 50%,#0c4a6e);display:grid;place-items:center;color:#fff}
.video iframe,.video video{position:absolute;inset:0;width:100%;height:100%;border:0}.video .play{width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.18);display:grid;place-items:center;backdrop-filter:blur(4px);font-size:30px;margin:0 auto 12px;transition:transform .2s}.video:hover .play{transform:scale(1.08)}
.rv{border-top:1px solid #f1f5f9;padding:16px 0}.rv:first-child{border-top:0}.rvsum{display:flex;gap:28px;align-items:center;flex-wrap:wrap;margin-bottom:10px}.rvsum .big{font-size:48px;font-weight:800;color:var(--ink);line-height:1}
.bars{flex:1;min-width:200px}.bars div{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.bars i{flex:1;height:6px;background:#f1f5f9;border-radius:9px;overflow:hidden}.bars i b{display:block;height:100%;background:var(--amber)}
.side{position:sticky;top:88px}
/* calendar */
.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}.day{background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:12px 6px;text-align:center;min-height:130px}.day.today{border-color:var(--p2);background:var(--p-50)}
.day .d{font-weight:700;font-size:14px;color:var(--ink)}.slot{display:block;width:100%;margin-top:7px;padding:7px 0;border-radius:10px;border:1px solid var(--p-100);background:#fff;color:#4338ca;cursor:pointer;font:inherit;font-size:14px;font-weight:600;transition:all .15s}
.slot:hover{border-color:var(--p);background:var(--p-50)}.slot.off{background:#f1f5f9;color:#94a3b8;border-color:#e2e8f0;text-decoration:line-through;cursor:not-allowed}.slot.sel{background:var(--p);color:#fff;border-color:var(--p);box-shadow:var(--sh2)}
.legend{display:flex;gap:16px;font-size:13px;color:var(--muted);margin-top:12px}.legend i{display:inline-block;width:12px;height:12px;border-radius:4px;margin-right:4px;vertical-align:-1px}
/* tables, misc */
table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}th,td{padding:12px 14px;border-bottom:1px solid #f1f5f9;text-align:left;font-size:14px}th{background:#f8fafc;color:#475569;font-weight:600}
.notice{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:12px 16px;border-radius:12px;font-size:14px;margin:16px 0;display:flex;gap:8px;align-items:flex-start}
.ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;padding:28px;border-radius:var(--r);text-align:center}
.pill{font-size:12px;padding:3px 10px;border-radius:99px;font-weight:600;white-space:nowrap}.s-pending{background:#fef3c7;color:#92400e}.s-confirmed{background:#dbeafe;color:#1e40af}.s-completed{background:#dcfce7;color:#166534}.s-cancelled{background:#f1f5f9;color:#64748b}
.auth{min-height:calc(100vh - 68px);display:grid;grid-template-columns:1fr 1fr}.auth .art{background:linear-gradient(160deg,var(--p),#7c3aed 60%,var(--sky));color:#fff;padding:60px;display:flex;flex-direction:column;justify-content:center}.auth .art h2{color:#fff;font-size:32px}.auth .art img{border-radius:22px;margin-top:28px;max-width:440px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth .frm{display:grid;place-items:center;padding:40px 24px}.auth .frm .card{width:100%;max-width:420px}
.tabs{display:flex;gap:6px;background:#f1f5f9;padding:5px;border-radius:12px;margin-bottom:22px}.tabs button{flex:1;border:0;background:none;padding:9px;border-radius:9px;font:inherit;font-weight:600;color:var(--muted);cursor:pointer}.tabs button.on{background:#fff;color:var(--p);box-shadow:var(--sh)}
.me{display:grid;grid-template-columns:260px 1fr;gap:24px;padding:32px 0 20px;align-items:start}.me nav a{display:flex;gap:10px;align-items:center;padding:11px 14px;border-radius:12px;color:#475569;font-weight:500;margin-bottom:4px}.me nav a.on,.me nav a:hover{background:var(--p-50);color:var(--p)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}.kpi .v{font-size:32px;font-weight:800;color:var(--ink)}.kpi.main{background:linear-gradient(135deg,var(--p),var(--sky));color:#fff}.kpi.main .v,.kpi.main .muted{color:#fff}
.lesson{display:flex;gap:14px;align-items:center;padding:14px 0;border-top:1px solid #f1f5f9;flex-wrap:wrap}.lesson:first-child{border-top:0}.lesson .when{min-width:120px}.lesson .when b{display:block;color:var(--ink)}
.starpick{display:flex;gap:4px;font-size:28px;cursor:pointer;color:#cbd5e1}.starpick .on{color:var(--amber)}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.5);display:grid;place-items:center;padding:20px;z-index:60;animation:fade .2s}.modal .card{width:100%;max-width:480px;animation:pop .25s}
@keyframes fade{from{opacity:0}}@keyframes pop{from{transform:scale(.95);opacity:0}}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;z-index:99;animation:pop .2s;box-shadow:var(--sh2)}
/* footer */
footer{background:#0b1120;color:#94a3b8;padding:64px 0 28px;margin-top:40px;font-size:14px}footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}footer h4{color:#fff;margin:0 0 14px;font-size:15px}footer a{display:block;margin:8px 0}footer a:hover{color:#fff}
footer .logo{color:#fff}footer .bottom{border-top:1px solid #1e293b;margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}
/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.float{animation:none}}
@media(max-width:960px){.hero .wrap,.cta,.auth,.detail,.me{grid-template-columns:1fr}.hero h1{font-size:36px}.plans,.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr 1fr}.slide{flex-basis:50%}.auth .art{display:none}.side{position:static}footer .cols{grid-template-columns:1fr 1fr}.float.f1{left:8px}.float.f2{right:8px}}
@media(max-width:720px){.menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:14px;border-bottom:1px solid var(--line)}.menu.open{display:flex}.burger{display:block}.navr .hide-m{display:none}
section{padding:60px 0}.sec-h h2{font-size:26px}.stats{grid-template-columns:repeat(2,1fr)}.plans,.g3,.g4,.kpis{grid-template-columns:1fr}.slide{flex-basis:100%}.cal{grid-template-columns:repeat(2,1fr)}.cta{padding:36px 24px}footer .cols{grid-template-columns:1fr}.cnav{display:none}}
.tzbar{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;background:#eef2ff;border:1px solid #c7d2fe;border-radius:12px;padding:10px 14px;margin-bottom:14px;font-size:14px}
.tzbar code{background:#fff;border-radius:6px;padding:1px 6px;font-size:12px}.tzbar .tzl{display:flex;align-items:center;gap:6px}.tgl{display:flex;align-items:center;gap:6px;cursor:pointer;font-weight:600;color:var(--p)}
.slot small{display:block;font-size:10px;opacity:.75}
.lesson .when small{font-size:11px}
.room{display:grid;grid-template-columns:1fr 320px;gap:20px;padding:24px 0}.room .stage{background:#0f172a;border-radius:18px;min-height:560px;display:flex;align-items:center;justify-content:center;color:#cbd5e1;overflow:hidden;position:relative}
.room iframe{width:100%;height:620px;border:0}.room .cdbig{font-size:46px;font-weight:800;color:#fff;letter-spacing:1px}
@media(max-width:900px){.room{grid-template-columns:1fr}.room iframe{height:480px}}
/* v5 会员卡 */
.annbar{background:#fff7ed;border-bottom:1px solid #fed7aa;font-size:14px;padding:8px 0}.annbar a{color:#9a3412}
.kh{margin:34px 0 14px;font-size:22px}.kh small{font-size:14px;font-weight:400}
.kind{display:inline-block;font-size:12px;padding:2px 8px;border-radius:99px;font-weight:600;background:#e0e7ff;color:#3730a3}.kind.k-period{background:#dcfce7;color:#166534}.kind.k-stored{background:#ffedd5;color:#9a3412}
.slot.wait{background:#fff7ed;border:1px dashed #fb923c;color:#9a3412}.slot small{display:block;font-size:10px}
.rules{margin:12px 0;font-size:14px}
.copt{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:8px;cursor:pointer;color:var(--ink)}.copt.no{opacity:.6;cursor:not-allowed}.copt .dd{margin-left:auto;text-align:right;font-size:14px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.mcard{border-radius:18px;padding:20px;background:linear-gradient(135deg,#eef2ff,#fff);border:1px solid #c7d2fe}.mcard.k-period{background:linear-gradient(135deg,#ecfdf5,#fff);border-color:#bbf7d0}.mcard.k-stored{background:linear-gradient(135deg,#fff7ed,#fff);border-color:#fed7aa}
.mcard h3{margin:10px 0 6px}.mcard .big{font-size:18px;margin-bottom:6px}.mcard .mh{display:flex;justify-content:space-between}.mcard .stt{font-size:13px;font-weight:600;color:var(--green)}
.mcard.st-expired,.mcard.st-used_up,.mcard.st-void{filter:grayscale(1);opacity:.7}.mcard.st-expired .stt,.mcard.st-void .stt,.mcard.st-used_up .stt{color:#64748b}.mcard.st-inactive .stt,.mcard.st-paused .stt{color:#d97706}
.lims{margin:8px 0;display:flex;flex-wrap:wrap;gap:6px}.lims span{font-size:12px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:2px 8px}
.leave{font-size:13px;background:#fef3c7;border-radius:8px;padding:4px 8px;margin-top:6px}.ma{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.lk{font-size:12px;padding:2px 8px;border-radius:6px;background:#f1f5f9}.lk-consume,.lk-hold{background:#ffe4e6}.lk-refund,.lk-open,.lk-migrate{background:#dcfce7}
.msg{padding:12px 4px;border-bottom:1px solid #f1f5f9}.msg.unread{border-left:3px solid var(--p);padding-left:10px;background:#f8faff}
.dot{background:var(--coral);color:#fff;border-radius:99px;font-size:11px;padding:1px 7px}
.reply{font-size:13px;background:#f1f5f9;border-radius:8px;padding:4px 8px;margin-top:4px}
.pill.s-noshow{background:#fee2e2;color:#b91c1c}
.copt input{width:auto!important;flex:none;margin:0}.copt>span:not(.dd){flex:1;text-align:left;display:block}

/* v19.5：首页实拍风格配图 */
.hero-img img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block}
.g2{grid-template-columns:repeat(2,1fr)}
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:center}
.split.rev{grid-template-columns:1.1fr 1fr}.split.rev>picture{order:2}
.split img.ph,.pfig img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:22px;box-shadow:var(--sh2);display:block}
.split .grid{gap:14px}.split .course{padding:16px 18px}.split .course h3{margin:6px 0}
.ticks{list-style:none;padding:0;line-height:2}.ticks li:before{content:"✓ ";color:#10b981;font-weight:700}
.pfig{margin:0}.pfig figcaption{display:grid;gap:4px;margin-top:12px}
.cap-row{display:flex;gap:10px;align-items:center}.cap-row img{height:50px;border-radius:8px;cursor:pointer;border:1px solid #e2e8f0}.cap-row input{max-width:120px}
@media(max-width:860px){.split,.split.rev,.g2{grid-template-columns:1fr}.split.rev>picture{order:0}}

/* v19.5 品牌 logo */
.logo .brandlogo,.adm-top .brandlogo{width:34px;height:34px;border-radius:50%;flex:none;display:inline-block;vertical-align:middle;margin-right:8px}.logo .brandlogo{margin-right:0}

/* ================= v19.6 国际化视觉升级 ================= */
@font-face{font-family:"Inter";src:url(/fonts/inter-var.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Poppins";src:url(/fonts/poppins-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Poppins";src:url(/fonts/poppins-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Poppins";src:url(/fonts/poppins-800.woff2) format("woff2");font-weight:800;font-display:swap}
:root{--p:#1677c9;--p2:#2b93e0;--p-50:#eef7ff;--p-100:#d6ebfb;--sky:#22b8e6;--navy:#0a2540;--coral:#ff7849;--ink:#0a2540;--text:#22324a;--muted:#5b6b82;--line:#e3eaf3;--bg:#f7fafd;--sh:0 1px 2px rgba(10,37,64,.04),0 6px 24px rgba(10,37,64,.06);--sh2:0 18px 50px rgba(22,119,201,.18);
 --f-body:"Inter","Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;--f-head:"Poppins","Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif}
body{font-family:var(--f-body);background:#fff}
h1,h2,h3,.logo,.stats b,.tagline{font-family:var(--f-head)}
h2{font-size:34px;letter-spacing:-.02em}
.btn{border-radius:999px;padding:12px 24px}.btn:hover{background:#0f63aa}.btn.lg{padding:15px 30px}
.btn.coral{background:linear-gradient(135deg,#ff8a50,#ff6a3d);box-shadow:0 8px 22px rgba(255,120,73,.28)}.btn.coral:hover{background:linear-gradient(135deg,#ff7a40,#f25a2c)}
.btn.ghost{border-color:#cfe3f6;color:var(--p)}
.chip{background:var(--p-50);color:var(--p);letter-spacing:.02em}
.sec-h .chip{text-transform:none}
section{padding:96px 0}
/* header */
header.nav{background:rgba(255,255,255,.78);border-bottom:1px solid rgba(227,234,243,.7)}
header.nav .wrap{height:74px}
.logo .lw{display:inline-flex;gap:6px;align-items:baseline;letter-spacing:-.01em}.logo .lw span{color:var(--p);font-weight:600}
.logo .brandlogo{width:36px;height:36px;box-shadow:0 4px 12px rgba(10,37,64,.15)}
.menu a{font-weight:500}
.langsw{display:none;align-items:center;gap:4px;border:1px solid var(--line);border-radius:999px;padding:3px 6px 3px 10px;background:#fff;font-size:13px}
html[data-lang] .langsw{display:inline-flex}
.langsw select{border:0;background:transparent;font:inherit;font-weight:600;color:var(--ink);padding:4px 2px;cursor:pointer;outline:none;width:auto}
.navr{display:flex;align-items:center;gap:10px}
/* hero */
.hero.hx{background:linear-gradient(180deg,#f3f9ff 0,#fff 100%);padding:84px 0 72px;isolation:isolate}
.hero .blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;z-index:-1;animation:drift 18s ease-in-out infinite alternate}
.hero .b1{width:520px;height:520px;background:#bfe4ff;right:-120px;top:-160px}.hero .b2{width:420px;height:420px;background:#ffe1d3;left:-160px;bottom:-200px;animation-delay:-6s}
@keyframes drift{to{transform:translate(40px,30px) scale(1.08)}}
.chip.glass{background:rgba(255,255,255,.8);border:1px solid var(--p-100);box-shadow:var(--sh)}
.tagline{font-size:60px;line-height:1.06;margin:22px 0 10px;font-weight:800;letter-spacing:-.035em}
.tagline span,.tagline em{display:block}
.tagline em{font-style:normal;background:linear-gradient(90deg,var(--p),var(--sky) 60%,#7dd3fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.subtag{font-size:22px;font-weight:600;color:var(--ink);margin:0 0 16px;font-family:var(--f-body)}
.hero p.lead{font-size:17px;color:var(--muted)}
.hero-img img{border-radius:32px;box-shadow:0 30px 80px rgba(10,37,64,.18)}
.hero-img .float{position:absolute;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-radius:18px;padding:10px 16px;box-shadow:0 12px 32px rgba(10,37,64,.14);display:flex;flex-direction:column;animation:bob 5s ease-in-out infinite}
.hero-img .float b{font-family:var(--f-head);font-size:18px;color:var(--ink)}.hero-img .float span{font-size:12px;color:var(--muted)}
.hero-img .f1{left:-22px;top:14%}.hero-img .f2{right:-18px;top:46%;animation-delay:-1.6s}.hero-img .f3{left:12%;bottom:-22px;animation-delay:-3.2s}
@keyframes bob{50%{transform:translateY(-8px)}}
.stats div{border-left-color:var(--p-100)}.stats b{font-size:24px}
/* trust */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;padding:26px 0}
.trust .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.t-item{display:flex;gap:14px;align-items:center}.t-ic{width:46px;height:46px;border-radius:14px;background:var(--p-50);display:grid;place-items:center;font-size:22px;flex:none}
.t-item b{display:block;color:var(--ink);font-size:15px}.t-item span{font-size:13px;color:var(--muted)}
/* world */
.world{background:radial-gradient(900px 400px at 50% 0,#f0f8ff,transparent 70%)}
.mapbox{position:relative;max-width:1000px;margin:10px auto 0}
.mapbox img{width:100%;height:auto;opacity:.95}
.pin{position:absolute;transform:translate(-50%,-50%);animation:pop .6s both}
.pin i{display:block;width:14px;height:14px;border-radius:50%;background:var(--p);border:3px solid #fff;box-shadow:0 0 0 0 rgba(22,119,201,.5);animation:pulse 2.4s infinite}
.pin em{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);white-space:nowrap;font-style:normal;font-size:12px;font-weight:600;background:#fff;color:var(--ink);padding:3px 9px;border-radius:999px;box-shadow:0 6px 16px rgba(10,37,64,.12)}
@keyframes pulse{70%{box-shadow:0 0 0 14px rgba(22,119,201,0)}100%{box-shadow:0 0 0 0 rgba(22,119,201,0)}}
@keyframes pop{from{opacity:0;transform:translate(-50%,-30%) scale(.6)}}
.flags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:28px}
.flag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;box-shadow:var(--sh);font-size:14px;transition:transform .2s}
.flag:hover{transform:translateY(-2px)}.flag b{font-size:18px}.flag small{color:var(--muted)}
.cefr{display:inline-block;margin-left:8px;font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--p);background:var(--p-50);padding:2px 8px;border-radius:999px}
/* gallery */
.gallery-sec{padding-bottom:70px}
.gallery{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px max(24px,calc((100vw - 1180px)/2 + 24px)) 18px;scrollbar-width:thin}
.gallery figure{margin:0;flex:0 0 min(420px,78vw);scroll-snap-align:start;position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--sh)}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .6s}.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:14px;bottom:14px;background:rgba(10,37,64,.72);color:#fff;font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px)}
/* footer */
footer.fx{background:linear-gradient(180deg,#0a2540,#071a2e);color:#9fb3c8}
footer .fbrand .lw span{color:#7cc4f5}
footer .brandlogo{width:44px!important;height:44px!important}
footer .fname{color:#fff;font-weight:600;margin:14px 0 4px;font-family:var(--f-head);letter-spacing:.01em}
footer .fdesc{max-width:320px;margin:0 0 16px}
footer .langsw{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15)}footer .langsw select{color:#fff}footer .langsw option{color:#0a2540}
footer .bottom{border-top-color:rgba(255,255,255,.08)}
/* trial phone */
.phone-row{display:flex;align-items:stretch}.phone-row span{display:flex;align-items:center;padding:0 12px;background:var(--p-50);border:1px solid var(--line);border-right:0;border-radius:10px 0 0 10px;font-weight:600;color:var(--ink);font-size:14px}.phone-row input{border-radius:0 10px 10px 0;flex:1;min-width:0}
/* reveal: subtle */
.reveal{transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){.hero .blob,.hero-img .float,.pin,.pin i{animation:none}}
@media (max-width:960px){.tagline{font-size:44px}.trust .wrap{grid-template-columns:1fr}.hero-img .f1{left:8px}.hero-img .f2{right:8px}section{padding:72px 0}}
@media (max-width:640px){.tagline{font-size:36px}.subtag{font-size:18px}h2{font-size:26px}.pin em{display:none}.navr .btn{display:none}.hero.hx{padding:48px 0}.hero-img .float{padding:6px 10px}.hero-img .float b{font-size:14px}}
/* v19.6 mobile overflow fixes */
.hero.hx{overflow:hidden}
.tzrow select,#tz17{max-width:100%;min-width:0}
.tzrow{display:flex;flex-wrap:wrap;gap:6px;align-items:center;max-width:100%}
.wrap>div,.wrap .card{min-width:0}
@media (max-width:480px){header .lw{font-size:16px}header .langsw{padding:2px 4px 2px 8px}header .langsw>span{display:none}header .logo img{width:32px;height:32px}}
main,footer{overflow-wrap:break-word}html,body{overflow-x:clip}.navr{min-width:0;flex-wrap:nowrap}
.certchips{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.certchips i{font-style:normal;font-size:12px;font-weight:600;color:var(--p);background:#eaf4fd;border-radius:999px;padding:2px 10px}
/* v19.8 hero stat cards (design-system aligned) */
.hero-img .float{flex-direction:row;align-items:center;gap:12px;padding:12px 18px 12px 12px;border-radius:16px;background:rgba(255,255,255,.96);border:1px solid rgba(22,119,201,.10);box-shadow:0 10px 30px rgba(10,37,64,.12);min-width:0;height:auto}
.hero-img .float .fi{flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#e8f3fd,#d6ebfb);color:var(--p);font-style:normal;font-size:18px;line-height:1}
.hero-img .float>div{display:flex;flex-direction:column;line-height:1.2}
.hero-img .float b{font-family:var(--f-head);font-size:20px;font-weight:700;color:var(--navy);letter-spacing:-.01em}
.hero-img .float b small{font-size:13px;font-weight:600;color:var(--p)}
.hero-img .float span{font-size:12px;color:var(--muted);margin-top:2px}
.hero-img .float.f1{left:-22px;right:auto;top:auto;bottom:34px}
.hero-img .float.f2{right:-18px;left:auto;top:26px;bottom:auto}
.hero-img .float.f3{right:22px;left:auto;bottom:-22px;top:auto}
.hero-img .float.f3 .fi{flex-basis:auto;width:auto;padding:0 8px;font-size:15px;letter-spacing:1px}
@media (max-width:640px){.hero-img .float{padding:8px 12px 8px 8px;gap:8px}.hero-img .float .fi{flex-basis:30px;width:30px;height:30px;border-radius:9px;font-size:14px}.hero-img .float .fi svg{width:16px;height:16px}.hero-img .float b{font-size:15px}.hero-img .float.f1{left:-6px;bottom:18px}.hero-img .float.f2{right:-6px;top:12px}.hero-img .float.f3{display:none}}
/* v19.8 language-specific admin text + Philippines focus */
.l-en{display:none}html[lang=en] .l-en{display:inline}html[lang=en] .l-zh{display:none}
#worldsub .big{font-family:var(--f-head);font-size:28px;color:var(--p)}#worldsub .hl{display:inline-block;margin-left:8px;background:#fff4ec;color:#c2551c;border-radius:999px;padding:3px 12px;font-weight:600;font-size:14px}
.pin.focus i{width:22px;height:22px;background:var(--coral);box-shadow:0 0 0 0 rgba(255,120,73,.55)}
.pin.focus em{background:var(--navy);color:#fff;font-size:13px;padding:5px 12px;z-index:2}
.flag.focus{border-color:var(--coral);background:linear-gradient(135deg,#fff7f2,#fff);box-shadow:0 8px 24px rgba(255,120,73,.18)}.flag.focus small{color:#c2551c;font-weight:600}
@media (max-width:640px){.pin.focus em{display:block}}
.pin.below em{bottom:auto;top:20px}

/* v20.7.32：平板宽度（721–1000px）导航栏文字不再竖排折行（所有网站页面一致，含 /words 单词学习） */
.menu a{white-space:nowrap}
@media(min-width:721px) and (max-width:1100px){.nav .wrap{gap:14px}.menu{gap:12px;min-width:0}.menu a{font-size:14px}.lw{white-space:nowrap}}
@media(min-width:721px) and (max-width:860px){.menu{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:14px;border-bottom:1px solid var(--line)}.menu.open{display:flex}.burger{display:block}.navr{margin-left:auto}}
/* v20.7.33 ISSUE-732-2：英文界面 1001–1035px「Book a Trial」被挤出右边 → 紧凑导航延伸到 1100px */
/* v20.7.34 ISSUE-733-1：英文菜单更长，861–960px 也改用 ☰ 菜单，避免「Book a Trial」压住语言下拉；
   超窄屏（≤400px）语言下拉不再被挤到 ☰ 下面：缩小间距、隐藏 Edtech 字样（≤360px 只留图标）。 */
@media(min-width:861px) and (max-width:960px){html[data-lang]:not([data-lang=zh]) .menu{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:14px;border-bottom:1px solid var(--line)}html[data-lang]:not([data-lang=zh]) .menu.open{display:flex}html[data-lang]:not([data-lang=zh]) .burger{display:block}html[data-lang]:not([data-lang=zh]) .navr{margin-left:auto}}
@media(max-width:400px){header.nav .wrap{gap:10px}.navr{flex-shrink:0;margin-left:auto}.lw>span{display:none}}
@media(max-width:360px){.lw{display:none}}