:root{
  --navy:#0C2D52; --navy2:#14385f; --teal:#0F9DB0; --teal-d:#0b7d8c;
  --coral:#EE6B36; --amber:#F2A93B; --green:#1FA37A;
  --ink:#16263b; --muted:#5b6b7e; --line:#e6edf3; --soft:#f4f8fb; --bg:#ffffff;
  --radius:16px; --shadow:0 10px 30px rgba(12,45,82,.08); --shadow-lg:0 24px 60px rgba(12,45,82,.16);
  --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:Georgia,"Times New Roman","Songti SC",serif;line-height:1.2;color:var(--navy);margin:0}
a{color:var(--teal-d);text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-family:inherit;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;font-size:12px;color:var(--teal-d)}
.kicker::before{content:"";width:10px;height:10px;background:var(--teal);border-radius:3px;display:inline-block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;border:0;
  font:inherit;font-weight:700;border-radius:999px;padding:14px 26px;transition:.18s transform,.18s box-shadow;
  background:var(--coral);color:#fff;box-shadow:0 8px 20px rgba(238,107,54,.32)}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(238,107,54,.42)}
.btn.teal{background:var(--teal);box-shadow:0 8px 20px rgba(15,157,176,.32)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);box-shadow:none}
.btn.lg{padding:17px 34px;font-size:17px}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* ── Nav ── */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:Georgia,serif;font-weight:700;color:var(--navy)}
.brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--teal));
  color:#fff;display:grid;place-items:center;font-size:15px;letter-spacing:-1px}
.brand b{font-size:17px}.brand span{font-size:11px;color:var(--muted);display:block;font-family:inherit;letter-spacing:.06em}
.nav nav{display:flex;gap:26px;align-items:center}
.nav nav a{color:var(--ink);font-weight:600;font-size:14px}
.nav nav a.cta{color:#fff;background:var(--coral);padding:9px 18px;border-radius:999px}
.langtoggle{background:transparent;border:1.5px solid var(--line);color:var(--navy);font:inherit;font-weight:700;
  font-size:13px;padding:7px 12px;border-radius:999px;cursor:pointer;min-width:48px}
.langtoggle:hover{border-color:var(--teal);color:var(--teal-d)}
@media(max-width:760px){.nav nav a:not(.cta){display:none}.nav nav{gap:12px}}

/* ── Hero ── */
.hero{position:relative;color:#fff;overflow:hidden;
  background:radial-gradient(900px 500px at 80% -10%,rgba(15,157,176,.55),transparent 60%),
             linear-gradient(160deg,#0a2547,#0C2D52 55%,#0b2a4f)}
.hero::after{content:"";position:absolute;inset:0;opacity:.10;
  background-image:linear-gradient(rgba(255,255,255,.25) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.25) 1px,transparent 1px);
  background-size:42px 42px;mask-image:radial-gradient(600px 400px at 75% 0,#000,transparent 70%)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;
  padding:62px 20px 70px;align-items:center}
.hero .kicker{color:#7fe3ef}
.hero h1{color:#fff;font-size:46px;margin:14px 0 8px}
.hero h1 em{font-style:normal;color:var(--amber)}
.hero .sub{font-size:19px;color:#cfe0ef;margin:0 0 22px;max-width:540px}
.eq{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px}
.eq .chip{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);color:#eaf4fb;
  padding:7px 13px;border-radius:999px;font-size:13px;font-weight:600}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero .reassure{margin-top:16px;color:#9fc2dd;font-size:13px;display:flex;gap:16px;flex-wrap:wrap}
.hero .reassure b{color:#fff}
.heroCard{background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);padding:10px;transform:rotate(-1.2deg)}
.heroCard img{width:100%;border-radius:12px;display:block}
.priceTag{position:absolute;z-index:3;right:-6px;top:-18px;background:var(--amber);color:var(--navy);
  font-weight:800;border-radius:14px;padding:10px 16px;box-shadow:var(--shadow);transform:rotate(6deg);font-family:Georgia,serif}
.priceTag small{display:block;font-size:11px;font-weight:700;letter-spacing:.08em}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr;padding:46px 20px 54px}.hero h1{font-size:34px}.heroCard{order:-1;transform:none;max-width:420px;margin:0 auto}}

/* ── Sections ── */
section{padding:64px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 40px}
.section-head h2{font-size:32px;margin:10px 0 8px}
.section-head p{color:var(--muted);font-size:17px;margin:0}
.soft{background:var(--soft)}

/* value props */
.props{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.prop{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.prop .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;margin-bottom:12px;color:#fff}
.prop h3{font-size:18px;margin-bottom:6px}.prop p{color:var(--muted);margin:0;font-size:15px}
@media(max-width:760px){.props{grid-template-columns:1fr}}

/* curriculum */
.stage{margin-bottom:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.stage-head{display:flex;align-items:center;gap:16px;padding:18px 22px;color:#fff;position:relative}
.stage-head .num{font-family:Georgia,serif;font-size:34px;font-weight:800;opacity:.85;min-width:54px}
.stage-head h3{color:#fff;font-size:20px;margin:0}
.stage-head .en{font-size:13px;opacity:.85;font-family:inherit}
.lessons{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.lesson{background:#fff;padding:16px 18px}
.lesson .no{font-weight:800;color:var(--teal-d);font-family:Georgia,serif}
.lesson b{display:block;color:var(--navy);font-size:15px;margin:2px 0 3px}
.lesson p{margin:0;color:var(--muted);font-size:13px}
@media(max-width:760px){.lessons{grid-template-columns:1fr}}

/* outcomes */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.checklist .tick{flex:0 0 24px;height:24px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-size:13px}
.checklist b{color:var(--navy)}.checklist span{color:var(--muted);font-size:14px}
@media(max-width:760px){.grid2{grid-template-columns:1fr;gap:24px}}

/* referral */
.refflow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.refstep{background:#fff;border:1px dashed var(--teal);border-radius:var(--radius);padding:22px;text-align:center;position:relative}
.refstep .big{font-size:30px;margin-bottom:8px}
.refstep b{color:var(--navy);display:block;margin-bottom:4px}
.refstep p{margin:0;color:var(--muted);font-size:14px}
.refstep .arr{position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:var(--teal);font-size:22px;z-index:2}
@media(max-width:760px){.refflow{grid-template-columns:1fr}.refstep .arr{display:none}}
.refbanner{background:linear-gradient(135deg,var(--green),#15c08a);color:#fff;border-radius:var(--radius);
  padding:22px 26px;margin-top:24px;text-align:center;font-size:18px;font-weight:700;box-shadow:var(--shadow)}
.refbanner b{color:#fff7df}

/* schedule + pricing */
.panels{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.panel.dark{background:linear-gradient(160deg,var(--navy),#0a2547);color:#fff;border:0}
.panel.dark h3{color:#fff}
.zoomrow{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
.zoomrow:last-child{border:0}.zoomrow b{color:var(--amber)}
.bigprice{font-family:Georgia,serif;font-size:54px;color:var(--navy);font-weight:800;line-height:1}
.bigprice small{font-size:18px;color:var(--muted);font-weight:600}
.strike{color:var(--muted);text-decoration:line-through;font-size:20px;margin-left:8px}
@media(max-width:760px){.panels{grid-template-columns:1fr}}

/* enroll form */
.enroll{max-width:560px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg);padding:30px}
.refnote{background:#eafaf3;border:1px solid #bfe9d6;color:#0c6b4b;border-radius:12px;padding:12px 14px;margin-bottom:18px;font-size:14px;display:none}
.refnote.show{display:block}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px;color:var(--navy)}
.field input{width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:11px;font:inherit;background:var(--soft)}
.field input:focus{outline:none;border-color:var(--teal);background:#fff}
.formmsg{margin-top:12px;font-size:14px;min-height:20px}
.formmsg.err{color:#c0392b}.formmsg.ok{color:var(--green)}
.demoflag{background:#fff7e6;border:1px solid #f3d68a;color:#8a5a00;border-radius:10px;padding:9px 12px;font-size:12.5px;margin-bottom:16px}
.fineprint{color:var(--muted);font-size:12.5px;text-align:center;margin-top:14px}

/* footer */
footer{background:var(--navy);color:#cfe0ef;padding:40px 0;text-align:center;font-size:14px}
footer .brand{justify-content:center;color:#fff;margin-bottom:10px}
footer .brand b,footer .brand span{color:#fff}
footer a{color:var(--amber)}

.badge{display:inline-block;background:rgba(31,163,122,.12);color:var(--green);font-weight:700;font-size:12px;
  padding:5px 12px;border-radius:999px;border:1px solid rgba(31,163,122,.3)}