:root{--green:#006b4b;--green2:#0aa887;--orange:#ff7a1a;--yellow:#ffc52e;--blue:#35a9d6;--cream:#fff7e8;--cream2:#fffdf7;--ink:#14352c;--muted:#687a73;--line:#06c755;--border:#eadfc9;--shadow:0 22px 60px rgba(0,75,55,.13);--radius:30px;--container:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans TC","PingFang TC",system-ui,sans-serif;color:var(--ink);background:var(--cream2);line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(100% - 32px,var(--container));margin:auto}.narrow{--container:860px}.site-header{position:sticky;top:0;z-index:20;height:76px;display:flex;align-items:center;gap:26px;padding:0 max(18px,calc((100vw - var(--container))/2));background:rgba(255,253,247,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(234,223,201,.8)}.brand{display:flex;align-items:center;gap:12px;margin-right:auto}.brand img{width:50px;height:50px;border-radius:16px;object-fit:cover}.brand strong{display:block;font-size:20px;line-height:1;color:var(--green)}.brand small{font-size:12px;color:var(--orange);font-weight:800}.nav{display:flex;gap:20px;font-size:14px;font-weight:700;color:#46645b}.nav a:hover{color:var(--orange)}.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:900;transition:.18s ease}.nav-cta{padding:10px 18px}.line{background:var(--line)!important;color:white!important}.hero-image{background:linear-gradient(180deg,#fffdf7,#fff7e8);padding:20px 0 0}.hero-image img{width:min(100% - 32px,1240px);margin:auto;border-radius:0 0 42px 42px;box-shadow:var(--shadow);max-height:520px;object-fit:cover;object-position:center}.hero{padding:78px 0;background:radial-gradient(circle at 10% 0,rgba(255,197,46,.23),transparent 32%),radial-gradient(circle at 90% 8%,rgba(53,169,214,.18),transparent 28%),var(--cream2)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}.eyebrow,.kicker{color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.13em;text-transform:uppercase}.hero h1{font-size:clamp(42px,6vw,78px);line-height:1.04;margin:12px 0 20px;letter-spacing:-.06em}.lead{font-size:20px;color:#415c54;max-width:720px}.hero-actions{display:flex;gap:14px;margin:30px 0 16px;flex-wrap:wrap}.button{padding:13px 22px;border:0;cursor:pointer;font-family:inherit}.button.primary{background:linear-gradient(135deg,var(--orange),#ff9f1c);color:white;box-shadow:0 12px 28px rgba(255,122,26,.24)}.button.secondary{background:white;color:var(--green);border:1px solid var(--border)}.button.danger{background:#fff0ee;color:#bd2b20;border:1px solid #ffd0ca}.hero-note,.muted{color:var(--muted)}.conversion-card,.card,.line-box,.auth-card{background:white;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.conversion-card{padding:30px}.conversion-card img{width:150px;border-radius:28px;margin-bottom:18px}.mini-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:20px}.mini-flow span{background:var(--cream);border-radius:999px;padding:6px 12px;font-weight:900;color:var(--green)}.mini-flow i{width:22px;height:2px;background:var(--orange)}.section{padding:82px 0}.section.light{background:var(--cream)}.section-head{margin-bottom:30px}.section-head h1,.section-head h2{font-size:clamp(30px,4vw,52px);line-height:1.14;margin:6px 0 12px;letter-spacing:-.04em}.cards{display:grid;gap:22px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{padding:28px}.card h3{font-size:24px;line-height:1.28;margin:4px 0 12px}.price{font-size:28px;font-weight:900;color:var(--green);margin:8px 0}.article h1{font-size:clamp(34px,5vw,60px);line-height:1.12;letter-spacing:-.05em}.article-body{font-size:19px;background:white;border:1px solid var(--border);border-radius:28px;padding:34px;box-shadow:var(--shadow)}.line-section{min-height:58vh;display:flex;align-items:center}.line-box{display:grid;grid-template-columns:120px 1fr auto;gap:26px;align-items:center;padding:34px}.line-box img{border-radius:24px}.auth-card{padding:34px}.auth-card form,.admin-form{display:grid;gap:16px}.auth-card label,.admin-form label{display:grid;gap:8px;font-weight:900}.auth-card input,.admin-form input,.admin-form textarea,.admin-form select{width:100%;border:1px solid var(--border);border-radius:16px;background:#fff;padding:13px 14px;font:inherit;color:var(--ink)}.admin-form textarea{resize:vertical}.admin-table{display:grid;gap:12px}.admin-row{display:flex;justify-content:space-between;gap:18px;align-items:center;background:white;border:1px solid var(--border);border-radius:22px;padding:16px}.admin-row small{display:block;color:var(--muted)}.admin-row>div:last-child{display:flex;gap:10px;align-items:center}.admin-row form{margin:0}.footer{background:#10372d;color:#dbeee8;padding:34px 0}.footer-inner{display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}.nav-toggle{position:absolute;opacity:0;pointer-events:none}.nav-toggle-label{display:none;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;color:var(--green);border-radius:999px;padding:9px 14px;font-size:14px;font-weight:900;cursor:pointer}.member-actions{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:800;color:var(--green)}.nav-cta.logout{background:#fff;border:1px solid var(--border);color:var(--green);padding:9px 16px}.nav-cta.logout:hover{background:var(--cream);color:var(--orange)}.auth-card small{display:block;color:var(--muted);font-weight:600}.hero-actions{flex-wrap:wrap}

/* Header refinement */
.site-header{height:64px;min-height:64px;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:22px;padding:0 max(18px,calc((100vw - var(--container))/2));background:rgba(255,253,247,.94)}.brand{margin-right:0;width:auto;gap:10px}.brand img{width:44px;height:44px}.brand span{white-space:nowrap}.brand strong,.brand small{display:inline;font-size:24px;line-height:1;font-weight:900;letter-spacing:-.04em;color:var(--green)}.brand small:before{content:""}.nav{grid-column:2;justify-self:end;display:flex;gap:28px;margin-left:0;width:auto;overflow:visible;padding:0}.nav a{white-space:nowrap}.member-actions{grid-column:3/5;display:flex;align-items:center;gap:10px;justify-self:end}.member-actions:before{content:"｜";color:var(--border);font-weight:900;margin-right:0}.profile-menu{position:relative}.profile-menu summary{list-style:none;cursor:pointer}.profile-menu summary::-webkit-details-marker{display:none}.profile-icon{width:44px;height:44px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#fff,#fff7e8);border:1px solid var(--border);font-size:22px;box-shadow:0 6px 18px rgba(0,75,55,.06)}.profile-dropdown{position:absolute;right:0;top:calc(100% + 12px);min-width:148px;background:#fffdf7;border:1px solid var(--border);border-radius:18px;box-shadow:0 18px 40px rgba(0,75,55,.14);padding:8px;z-index:60}.profile-dropdown a{display:block;padding:10px 12px;border-radius:12px;font-weight:900;color:#46645b;white-space:nowrap}.profile-dropdown a:hover{background:#fff7e8;color:var(--orange)}.nav-cta.line{padding:11px 22px}.nav-toggle{position:absolute;opacity:0;pointer-events:none}.nav-toggle-label{display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;width:44px;height:44px;background:transparent;color:var(--green);border:0;border-radius:999px;cursor:pointer}.nav-toggle-label span{display:block;width:22px;height:3px;border-radius:999px;background:var(--green)}.auth-card small{display:block;color:var(--muted);font-weight:600}.hero-actions{flex-wrap:wrap}.section{padding-top:56px}.site-header+main.section{padding-top:56px}

/* Admin console: deliberately separate from front-stage design */
.admin-body{min-height:100vh;background:#f4f7fb;color:#182230;display:grid;grid-template-columns:280px 1fr;font-family:"Noto Sans TC","PingFang TC",system-ui,sans-serif}.admin-sidebar{position:sticky;top:0;height:100vh;background:#111827;color:#e5e7eb;padding:24px 18px;display:flex;flex-direction:column;gap:24px;border-right:1px solid rgba(255,255,255,.08)}.admin-brand{display:flex;align-items:center;gap:12px;padding:10px}.admin-brand img{width:42px;height:42px;border-radius:14px}.admin-brand strong{display:block;font-size:22px;line-height:1;color:#fff;letter-spacing:-.04em}.admin-brand small{display:block;color:#9ca3af;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.admin-menu{display:grid;gap:8px}.admin-menu a{padding:13px 14px;border-radius:14px;color:#cbd5e1;font-weight:900}.admin-menu a:hover{background:#1f2937;color:#fff}.admin-user{margin-top:auto;background:#0b1220;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:16px;display:grid;gap:4px}.admin-user small{color:#9ca3af;word-break:break-all}.admin-user a{margin-top:8px;color:#93c5fd;font-weight:900}.admin-main{padding:34px;max-width:1280px;width:100%;margin:0 auto}.admin-topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}.admin-topbar h1{font-size:42px;line-height:1.1;margin:4px 0 8px;letter-spacing:-.05em;color:#0f172a}.admin-topbar p{margin:0;color:#64748b}.admin-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}.admin-stats article,.admin-panel{background:#fff;border:1px solid #e5e7eb;border-radius:24px;box-shadow:0 16px 38px rgba(15,23,42,.06)}.admin-stats article{padding:22px}.admin-stats b{display:block;font-size:36px;line-height:1;color:#0f172a}.admin-stats span{color:#64748b;font-weight:900}.admin-panel{padding:22px}.admin-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.admin-panel-head h2{font-size:22px;margin:0;color:#0f172a}.admin-body .admin-row{border-color:#e5e7eb;border-radius:18px;box-shadow:none;background:#fff}.admin-body .admin-row b{color:#0f172a}.admin-body .admin-row small{color:#64748b}.admin-grid{display:grid;grid-template-columns:minmax(320px,420px) 1fr;gap:20px}.admin-body .admin-form input,.admin-body .admin-form textarea,.admin-body .admin-form select{border-color:#dbe3ef;background:#fff;border-radius:14px}.admin-body .admin-form label{color:#334155}.admin-body .button.primary{background:#2563eb;box-shadow:0 12px 24px rgba(37,99,235,.18)}.admin-body .button.secondary{background:#f8fafc;border-color:#dbe3ef;color:#1e293b}.admin-body .button.danger{background:#fef2f2;border-color:#fecaca;color:#991b1b}.admin-form-actions{display:flex;gap:10px;flex-wrap:wrap}.admin-badge{display:inline-flex;border-radius:999px;background:#e0f2fe;color:#075985;padding:6px 10px;font-size:12px;font-weight:900}.admin-account-panel{max-width:680px}.admin-login-body{min-height:100vh;background:radial-gradient(circle at 12% 15%,rgba(37,99,235,.25),transparent 30%),linear-gradient(135deg,#0f172a,#111827 62%,#1e293b);display:grid;place-items:center;padding:22px;color:#e5e7eb}.admin-login-card{width:min(100%,440px);background:rgba(15,23,42,.92);border:1px solid rgba(255,255,255,.12);box-shadow:0 32px 80px rgba(0,0,0,.35);border-radius:28px;padding:34px}.admin-login-card h1{font-size:34px;line-height:1.1;margin:8px 0 10px;color:#fff;letter-spacing:-.05em}.admin-login-card p{color:#cbd5e1}.admin-login-card form{display:grid;gap:16px;margin-top:22px}.admin-login-card label{display:grid;gap:8px;font-weight:900;color:#f8fafc}.admin-login-card input{width:100%;border:1px solid rgba(255,255,255,.16);background:#0b1220;color:#fff;border-radius:14px;padding:13px 14px;font:inherit}.admin-login-card .button.primary{width:100%;background:#2563eb;box-shadow:none}.admin-login-mark{display:flex;align-items:center;gap:12px;margin-bottom:10px}.admin-login-mark img{width:44px;height:44px;border-radius:14px}.admin-login-mark span{font-size:12px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:#93c5fd}.admin-login-link{display:inline-block;margin-top:18px;color:#93c5fd;font-weight:900}

@media(max-width:960px){.site-header{height:62px;min-height:62px;grid-template-columns:1fr auto auto auto;gap:8px;padding:8px 12px}.brand{grid-column:1;min-width:0}.brand img{width:40px;height:40px}.brand strong,.brand small{font-size:19px}.nav-toggle-label{display:inline-flex;grid-column:2;grid-row:1;padding-right:12px;margin-right:2px;border-right:1px solid var(--border);border-radius:0}.member-actions{grid-column:3/5;grid-row:1;gap:8px}.profile-icon{width:40px;height:40px;font-size:20px}.nav-cta.line{padding:8px 13px;font-size:13px}.nav{position:fixed;left:0;top:0;bottom:0;z-index:40;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;width:min(78vw,320px);padding:88px 22px 24px;background:#fffdf7;border-right:1px solid var(--border);box-shadow:24px 0 60px rgba(0,75,55,.16);gap:12px;transform:translateX(-105%);transition:transform .22s ease}.nav-toggle:checked+.nav-toggle-label+.nav{transform:translateX(0)}.nav a{width:100%;background:#fff7e8;border:1px solid var(--border);border-radius:18px;padding:13px 16px;font-weight:900}.section{padding-top:44px}.site-header+main.section{padding-top:44px}.cards.three{grid-template-columns:1fr}.hero-grid,.line-box{grid-template-columns:1fr}.admin-body{display:block}.admin-sidebar{position:relative;height:auto;border-right:0}.admin-menu{grid-template-columns:repeat(2,1fr)}.admin-main{padding:22px 14px}.admin-topbar,.admin-panel-head{display:grid}.admin-stats,.admin-grid{grid-template-columns:1fr}.admin-row{display:grid}.admin-row>div:last-child{justify-content:flex-start}}


/* Admin upgrade */
.admin-menu{display:grid;gap:18px}.admin-menu-group{display:grid;gap:7px}.admin-menu-group>span{padding:0 14px;color:#64748b;font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}.admin-avatar-menu{position:relative;margin-top:auto}.admin-avatar-menu summary{list-style:none;cursor:pointer;background:#0b1220;border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:12px;display:flex;align-items:center;gap:12px}.admin-avatar-menu summary::-webkit-details-marker{display:none}.admin-avatar{width:42px;height:42px;border-radius:999px;background:linear-gradient(135deg,#35a9d6,#0aa887);display:inline-flex;align-items:center;justify-content:center;color:white;font-weight:900}.admin-avatar-menu b{display:block;color:white;line-height:1.2}.admin-avatar-menu small{display:block;color:#9ca3af;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-avatar-dropdown{position:absolute;left:0;right:0;bottom:calc(100% + 10px);background:#fff;border:1px solid #e5e7eb;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.22);padding:8px;z-index:80}.admin-avatar-dropdown a{display:block;color:#0f172a;font-weight:900;padding:10px 12px;border-radius:12px}.admin-avatar-dropdown a:hover{background:#eef6ff;color:#0369a1}.admin-toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.admin-toolbar input,.admin-toolbar select{height:42px;border:1px solid #dbe3ef;border-radius:14px;padding:0 13px;background:white;min-width:220px}.admin-table-wrap{overflow:auto;border:1px solid #e5e7eb;border-radius:18px}.admin-data-table{width:100%;border-collapse:separate;border-spacing:0;background:white}.admin-data-table th{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#64748b;background:#f8fafc;text-align:left}.admin-data-table th,.admin-data-table td{padding:14px 16px;border-bottom:1px solid #e5e7eb;vertical-align:middle}.admin-data-table tr:last-child td{border-bottom:0}.admin-data-table b{display:block;color:#0f172a}.admin-data-table small{display:block;color:#64748b;max-width:460px}.admin-data-table code{background:#f1f5f9;border-radius:8px;padding:4px 7px;color:#334155}.table-actions{display:flex;gap:8px;align-items:center;justify-content:flex-end;white-space:nowrap}.table-actions form{display:inline}.status-badge,.admin-badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900;background:#e0f2fe;color:#0369a1}.status-badge.draft{background:#fef3c7;color:#92400e}.status-badge.active,.status-badge.published{background:#dcfce7;color:#166534}.form-grid.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.admin-editor-form .rich-source{display:none}.rich-editor{background:white;border:1px solid #dbe3ef;border-radius:0 0 18px 18px;min-height:240px;margin:0 0 18px}.ql-toolbar.ql-snow{border:1px solid #dbe3ef!important;border-radius:18px 18px 0 0;margin-top:8px;background:#f8fafc}.ql-container.ql-snow{border:0!important;font-family:inherit}.admin-tabs{position:sticky;top:0;z-index:10;display:flex;gap:8px;flex-wrap:wrap;background:#fff;padding:0 0 14px;margin-bottom:18px;border-bottom:1px solid #e5e7eb}.admin-tabs a{padding:9px 13px;border-radius:999px;background:#f1f5f9;color:#334155;font-weight:900}.admin-tabs a:hover{background:#dbeafe;color:#1d4ed8}.admin-tab-panel{scroll-margin-top:24px;padding:18px 0;border-bottom:1px solid #edf2f7}.admin-tab-panel h2{margin-top:0}.sticky-actions{position:sticky;bottom:0;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-top:1px solid #e5e7eb;padding-top:14px}.rich-content{line-height:1.9}.rich-content h2,.rich-content h3{line-height:1.25}.rich-content ul,.rich-content ol{padding-left:1.4em}.course-sales-page{background:var(--cream2)}.course-hero{padding:78px 0;background:radial-gradient(circle at 15% 0,rgba(255,197,46,.28),transparent 32%),linear-gradient(180deg,#fffdf7,#fff7e8)}.course-hero-grid{display:grid;grid-template-columns:1.08fr .72fr;gap:42px;align-items:center}.course-hero h1{font-size:clamp(42px,6vw,76px);line-height:1.02;margin:8px 0 18px;letter-spacing:-.06em;color:var(--green)}.course-hero-card{background:white;border:1px solid var(--border);border-radius:30px;padding:24px;box-shadow:var(--shadow)}.course-hero-card img{border-radius:22px;margin-bottom:18px}.course-hero-card span{display:inline-flex;margin-top:10px;border-radius:999px;background:#dcfce7;color:#166534;padding:6px 12px;font-weight:900}.course-section-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.course-curriculum{background:white;border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:var(--shadow)}
@media(max-width:960px){.form-grid.two,.course-hero-grid,.course-section-grid{grid-template-columns:1fr}.admin-data-table{min-width:760px}.table-actions{justify-content:flex-start}.admin-toolbar input,.admin-toolbar select{min-width:100%;width:100%}.admin-avatar-dropdown{position:fixed;left:14px;right:14px;bottom:18px}}