:root{--bg: #FAFAF7;--surface: #FFFFFF;--surface-2: #F4F4EF;--text: #1A1D1A;--text-2: #6B7269;--border: #E6E7E1;--border-strong: #D4D6CD;--accent: #1F5C3D;--accent-press: #184B31;--accent-soft: #E3ECE4;--accent-tint: #F0F5F0;--success: #2E7D5B;--warning: #A66A00;--error: #B3261E;--info: #2A5C8A;--star: #C8841C;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--s1: 4px;--s2: 8px;--s3: 12px;--s4: 16px;--s6: 24px;--s8: 32px;--r-card: 16px;--r-btn: 12px;--r-chip: 999px;--r-sm: 10px;--r-input: 12px;--sh-1: 0 1px 2px rgba(26,29,26,.04), 0 1px 3px rgba(26,29,26,.05);--sh-2: 0 2px 8px rgba(26,29,26,.06), 0 1px 2px rgba(26,29,26,.04);--sh-3: 0 8px 28px rgba(26,29,26,.12), 0 2px 6px rgba(26,29,26,.06);--ease: cubic-bezier(.4,0,.2,1)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.t-display{font-size:28px;line-height:1.18;font-weight:700;letter-spacing:-.02em}.t-title{font-size:22px;line-height:1.25;font-weight:600;letter-spacing:-.015em}.t-section{font-size:17px;line-height:1.35;font-weight:600;letter-spacing:-.01em}.t-body{font-size:15px;line-height:1.5;font-weight:400}.t-bodysb{font-size:15px;line-height:1.5;font-weight:600}.t-caption{font-size:13px;line-height:1.45;font-weight:500;color:var(--text-2)}.t-meta{font-size:12px;line-height:1.4;font-weight:500;color:var(--text-2);letter-spacing:.01em}.muted{color:var(--text-2)}.icon{width:20px;height:20px;stroke-width:1.75;flex:none}.icon-sm{width:16px;height:16px;stroke-width:1.75;flex:none}.icon-lg{width:24px;height:24px;stroke-width:1.75;flex:none}svg.lucide{stroke-width:1.75}.btn{font-family:var(--font);font-size:15px;font-weight:600;letter-spacing:-.01em;display:inline-flex;align-items:center;justify-content:center;gap:var(--s2);min-height:48px;padding:0 var(--s6);border-radius:var(--r-btn);border:none;cursor:pointer;transition:background .15s var(--ease),transform .08s var(--ease),box-shadow .15s var(--ease),color .15s;white-space:nowrap}.btn:active{transform:translateY(1px)}.btn .icon,.btn .icon-sm{stroke-width:2}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover,.btn--primary:active{background:var(--accent-press)}.btn--tonal{background:var(--accent-soft);color:var(--accent)}.btn--tonal:hover{background:#d7e4d9}.btn--text{background:transparent;color:var(--accent);min-height:44px;padding:0 var(--s3)}.btn--text:hover{background:var(--accent-tint)}.btn--ghost{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--border-strong)}.btn--ghost:hover{background:var(--surface-2)}.btn--block{display:flex;width:100%}.btn--sm{min-height:38px;font-size:14px;padding:0 var(--s4)}.btn:disabled{opacity:.45;cursor:default;transform:none}.btn--social{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--border-strong);font-weight:550}.btn--social:hover{background:var(--surface-2)}.chip{font-family:var(--font);font-size:14px;font-weight:550;display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border-radius:var(--r-chip);background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--border);cursor:pointer;white-space:nowrap;transition:all .15s var(--ease)}.chip:hover{background:var(--surface-2)}.chip--active{background:var(--accent);color:#fff;box-shadow:none}.chip--active:hover{background:var(--accent-press)}.chip-select{font-family:var(--font);font-size:15px;font-weight:550;display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 18px;border-radius:var(--r-chip);background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1.5px var(--border-strong);cursor:pointer;transition:all .15s var(--ease)}.chip-select .icon-sm{opacity:0;width:0;margin-left:-8px;transition:all .15s var(--ease)}.chip-select:hover{background:var(--surface-2)}.chip-select[aria-pressed=true]{background:var(--accent-soft);color:var(--accent);box-shadow:inset 0 0 0 1.5px var(--accent)}.chip-select[aria-pressed=true] .icon-sm{opacity:1;width:16px;margin-left:0}.filter-chip{font-family:var(--font);font-size:13px;font-weight:550;display:inline-flex;align-items:center;gap:4px;height:36px;padding:0 12px 0 14px;border-radius:var(--r-chip);background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--border-strong);cursor:pointer;white-space:nowrap}.filter-chip[data-active=true]{background:var(--accent-soft);color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.search{display:flex;align-items:center;gap:var(--s2);height:48px;padding:0 var(--s4);border-radius:var(--r-input);background:var(--surface);box-shadow:inset 0 0 0 1px var(--border)}.search:focus-within{box-shadow:inset 0 0 0 1.5px var(--accent)}.search .icon{color:var(--text-2)}.search input{flex:1;border:none;outline:none;background:transparent;font-family:var(--font);font-size:15px;color:var(--text)}.search input::-moz-placeholder{color:var(--text-2)}.search input::placeholder{color:var(--text-2)}.field{display:block}.field label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}.field-input{display:flex;align-items:center;gap:var(--s2);height:50px;padding:0 var(--s4);border-radius:var(--r-input);background:var(--surface);box-shadow:inset 0 0 0 1px var(--border-strong);transition:box-shadow .15s var(--ease)}.field-input:focus-within{box-shadow:inset 0 0 0 1.5px var(--accent)}.field-input.is-error{box-shadow:inset 0 0 0 1.5px var(--error)}.field-input input{flex:1;border:none;outline:none;background:transparent;font-family:var(--font);font-size:15px;color:var(--text)}.field-input input::-moz-placeholder{color:var(--text-2)}.field-input input::placeholder{color:var(--text-2)}.field-input 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var(--ease)}.course-row:hover{box-shadow:var(--sh-2)}.course-row__thumb{width:88px;flex:none;border-radius:10px;aspect-ratio:1}.course-row__body{flex:1;display:flex;flex-direction:column;justify-content:center;gap:5px;min-width:0}.list-row{display:flex;align-items:center;gap:var(--s3);min-height:56px;padding:12px 0;cursor:pointer;width:100%;background:none;border:none;font-family:var(--font);text-align:left}.list-row+.list-row{border-top:1px solid var(--border)}.list-row__lead{width:40px;height:40px;border-radius:10px;background:var(--accent-tint);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}.list-row__main{flex:1;min-width:0}.list-row__title{font-size:15px;font-weight:550;color:var(--text)}.list-row__sub{font-size:13px;color:var(--text-2);margin-top:1px}.list-row__trail{color:var(--text-2);display:flex;align-items:center;gap:6px}.segmented{display:flex;background:var(--surface-2);border-radius:14px;padding:4px;gap:4px}.segmented 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button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;border:none;background:none;cursor:pointer;padding:6px 0 4px;font-family:var(--font);font-size:11px;font-weight:600;color:var(--text-2);transition:color .15s var(--ease)}.bottomnav button .icon{stroke-width:1.75}.bottomnav button[aria-current=page]{color:var(--accent)}.bottomnav button[aria-current=page] .icon{stroke-width:2.25}.sticky-cta{position:sticky;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--border);padding:12px 16px calc(12px + env(safe-area-inset-bottom));display:flex;align-items:center;gap:14px;z-index:10;box-shadow:0 -4px 20px #1a1d1a0d}.sticky-cta__price{display:flex;flex-direction:column;line-height:1.1}.sticky-cta__price .amt{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}.sticky-cta__price .lbl{font-size:11px;color:var(--text-2)}.player{position:relative;background:#0e120f;aspect-ratio:16/9;overflow:hidden}.player__center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center}.player__play{width:60px;height:60px;border-radius:999px;background:#ffffff2e;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1.5px solid rgba(255,255,255,.5);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s}.player__play:hover{background:#ffffff47}.player__bar{position:absolute;left:0;right:0;bottom:0;padding:10px 14px 12px;display:flex;align-items:center;gap:10px;background:linear-gradient(to top,rgba(0,0,0,.55),transparent)}.player__bar .icon{color:#fff;cursor:pointer}.player__time{color:#fff;font-size:12px;font-variant-numeric:tabular-nums;opacity:.9}.player__track{flex:1;height:4px;border-radius:999px;background:#ffffff4d;position:relative;cursor:pointer}.player__progress{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:#fff}.player__progress:after{content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%);width:11px;height:11px;border-radius:999px;background:#fff}.skeleton{background:linear-gradient(100deg,var(--surface-2) 30%,#ecece6 50%,var(--surface-2) 70%);background-size:200% 100%;animation:sk 1.3s var(--ease) infinite;border-radius:8px}@keyframes sk{to{background-position:-200% 0}}.skeleton-card{background:var(--surface);border-radius:var(--r-card);padding:0;overflow:hidden;box-shadow:var(--sh-1)}.empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:48px 28px}.empty__icon{width:72px;height:72px;border-radius:20px;background:var(--accent-tint);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:8px}.empty__icon .icon-lg{width:30px;height:30px;stroke-width:1.5}.snackbar{position:fixed;left:16px;right:16px;bottom:84px;z-index:60;max-width:408px;margin:0 auto;background:var(--text);color:#fff;border-radius:12px;padding:13px 14px;display:flex;align-items:center;gap:10px;box-shadow:var(--sh-3);font-size:14px;font-weight:500;transform:translateY(140%);opacity:0;transition:all .32s var(--ease);pointer-events:none}.snackbar.show{transform:translateY(0);opacity:1;pointer-events:auto}.snackbar .icon{color:#8fd0a8}.snackbar--error .icon{color:#f2a6a0}.snackbar__action{margin-left:auto;color:#8fd0a8;font-weight:700;background:none;border:none;cursor:pointer;font-family:var(--font);font-size:14px}.badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px;letter-spacing:.01em}.badge--free{background:var(--accent-soft);color:var(--accent)}.badge--new{background:#e7eef4;color:var(--info)}.badge--owned{background:var(--surface-2);color:var(--text-2)}.avatar{border-radius:999px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}.divider{height:1px;background:var(--border);border:none;margin:0}.scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1d1a6b;z-index:40;opacity:0;transition:opacity .28s var(--ease)}.scrim.show{opacity:1}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:50;max-width:440px;margin:0 auto;background:var(--surface);border-radius:22px 22px 0 0;transform:translateY(100%);transition:transform .34s var(--ease);display:flex;flex-direction:column;max-height:92%;box-shadow:0 -8px 40px #1a1d1a2e}.sheet.show{transform:translateY(0)}.sheet__grab{width:38px;height:4px;border-radius:999px;background:var(--border-strong);margin:10px auto 4px;flex:none}.sheet__head{display:flex;align-items:center;padding:8px 16px 12px;gap:12px}.sheet__head .t-title{flex:1}.sheet__body{overflow-y:auto;padding:0 16px}.sheet__foot{padding:12px 16px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--border)}.app{width:100%;max-width:440px;margin:0 auto;height:100dvh;background:var(--bg);display:flex;flex-direction:column;position:relative;overflow:hidden}.screen{flex:1;display:flex;flex-direction:column;min-height:0;background:var(--bg)}.screen.pop{animation:scrPop .3s var(--ease)}@keyframes scrIn{0%{opacity:0;transform:translate(14px)}to{opacity:1;transform:none}}@keyframes scrPop{0%{opacity:0;transform:translate(-14px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion: reduce){.screen.pop{animation:none}}.screen__top{padding-top:calc(env(safe-area-inset-top) + 8px);flex:none}.screen__scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.screen__scroll::-webkit-scrollbar{width:0}.pad{padding-left:18px;padding-right:18px}.greet{display:flex;align-items:center;gap:12px;padding:6px 18px 12px}.greet__hi{flex:1;min-width:0}.greet__hi .t-caption{margin:0}.greet__hi .nm{font-size:20px;font-weight:700;letter-spacing:-.02em;line-height:1.2}.greet .avatar{width:44px;height:44px;font-size:15px}.section-head{display:flex;align-items:baseline;justify-content:space-between;padding:22px 18px 12px}.section-head .t-section{margin:0}.section-head .link{font-size:13px;font-weight:600;color:var(--accent);cursor:pointer;background:none;border:none;font-family:var(--font)}.rail{display:flex;gap:8px;overflow-x:auto;padding:2px 18px 4px;scrollbar-width:none}.rail::-webkit-scrollbar{display:none}.h-scroll{display:flex;align-items:flex-start;gap:14px;overflow-x:auto;padding:2px 18px 6px;scrollbar-width:none}.h-scroll::-webkit-scrollbar{display:none}.h-scroll .course-card{width:230px;flex:none}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:4px 18px 24px}.cv1{background:linear-gradient(135deg,#2e5e45,#1f5c3d 58%,#163c29);position:relative}.cv2{background:linear-gradient(140deg,#3c6e80,#2a5c8a);position:relative}.cv3{background:linear-gradient(135deg,#74804f,#4e5e33);position:relative}.cv4{background:linear-gradient(140deg,#2e5e45,#224a53);position:relative}.cv-pat:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle at 78% 22%,rgba(255,255,255,.22) 0,transparent 40%),radial-gradient(circle at 20% 90%,rgba(255,255,255,.1) 0,transparent 45%)}.cv-ico{position:absolute;right:12px;bottom:12px;color:#ffffff80}.cv-ico .icon-lg{width:30px;height:30px;stroke-width:1.5}.cover{position:relative;overflow:hidden}.cover__img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;-o-object-fit:cover;object-fit:cover;display:block}.cover__scrim{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to top,rgba(14,18,15,.52),rgba(14,18,15,.06) 55%,transparent)}.splash{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:var(--bg)}.splash__logo{width:88px;height:88px;border-radius:26px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);animation:pop .6s var(--ease)}.splash__logo .icon{width:46px;height:46px;stroke-width:1.4}@keyframes pop{0%{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}.splash__name{font-size:27px;font-weight:700;letter-spacing:-.03em}.splash__tag{font-size:14px;color:var(--text-2);margin-top:-10px}.spin{width:26px;height:26px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:999px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.ob{height:100%;display:flex;flex-direction:column}.ob__track{flex:1;display:flex;transition:transform .4s var(--ease)}.ob__slide{min-width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 36px;gap:18px}.ob__art{width:188px;height:188px;border-radius:36px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--sh-2)}.ob__art .icon{width:76px;height:76px;stroke-width:1.3}.ob__foot{padding:0 24px 30px;flex:none}.dots{display:flex;gap:7px;justify-content:center;margin-bottom:22px}.dots span{width:7px;height:7px;border-radius:999px;background:var(--border-strong);transition:all .3s var(--ease)}.dots span.on{width:22px;background:var(--accent)}.brand-sm{display:inline-flex;align-items:center;gap:9px}.brand-sm .b{width:34px;height:34px;border-radius:10px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center}.brand-sm .b .icon-sm{width:19px;height:19px}.brand-sm .nm{font-size:17px;font-weight:700;letter-spacing:-.02em}.or{display:flex;align-items:center;gap:12px;color:var(--text-2);font-size:12px;margin:18px 0}.or:before,.or:after{content:"";flex:1;height:1px;background:var(--border)}.chip-wrap{display:flex;flex-wrap:wrap;gap:10px}.lvl-opt{display:flex;align-items:center;gap:14px;text-align:left;width:100%;padding:18px;border-radius:16px;background:var(--surface);border:1.5px solid var(--border);cursor:pointer;font-family:var(--font);transition:all .15s var(--ease)}.lvl-opt[data-on=true]{border-color:var(--accent);background:var(--accent-tint)}.lvl-opt .lvl-ic{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}.lvl-opt .lvl-tt{flex:1}.lvl-opt .lvl-check{color:var(--accent);opacity:0;transition:opacity .15s}.lvl-opt[data-on=true] .lvl-check{opacity:1}.radio-dot{width:20px;height:20px;border-radius:999px;border:2px solid var(--border-strong);flex:none;display:flex;align-items:center;justify-content:center}.radio-dot.on{border-color:var(--accent)}.radio-dot.on:after{content:"";width:10px;height:10px;border-radius:999px;background:var(--accent)}.course-hero{aspect-ratio:16/10;display:flex;align-items:flex-end;padding:14px;position:relative}.hero-badge{position:absolute;bottom:14px;left:14px;box-shadow:0 2px 8px #0000002e}.meta-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:16px 18px 4px}.meta-row 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