:root{--paper:#f7f5ef;--ink:#252c24;--muted:#75796d;--line:#dcded2;--olive:#3a4936;--gold:#9e7c4b;--white:#fffefb;--serif:Georgia,'Songti SC','SimSun',serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif;font-size:14px;line-height:1.6}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{cursor:not-allowed;opacity:.45}a{color:inherit}button:focus-visible,a:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.demo-strip{height:29px;background:#e8e9df;text-align:center;font-size:10px;line-height:29px;letter-spacing:.5px;color:#5f6756}.demo-strip a{margin-left:20px;text-decoration:none}.header{height:89px;max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 42px;border-bottom:1px solid var(--line)}.brand{border:0;background:none;text-align:center;padding:0}.brand strong{display:block;font-family:var(--serif);font-size:30px;letter-spacing:10px;font-weight:500;padding-left:10px;line-height:1.2}.brand small{font-size:8px;letter-spacing:3px}.nav{display:flex;gap:28px}.nav button,.icon-button{border:0;background:transparent;padding:12px 0}.nav button{font-size:12px;position:relative;color:var(--muted)}.nav button.active{color:var(--ink)}.nav button.active:after{content:'';position:absolute;bottom:2px;left:0;right:0;height:1px;background:var(--ink)}.header-right{display:flex;gap:22px;align-items:center}.icon{width:21px;height:21px;display:inline-block;vertical-align:middle;fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round}.main{max-width:1180px;margin:auto;padding:0 42px 60px}.eyebrow{font-size:10px;letter-spacing:2.3px;font-weight:500;color:var(--muted);text-transform:uppercase}.section-head{display:flex;align-items:end;justify-content:space-between;margin:58px 0 25px;gap:14px}.section-head h2{font-family:var(--serif);font-size:27px;font-weight:400;letter-spacing:2px;margin:7px 0 0}.text-link{background:none;border:none;border-bottom:1px solid #929786;padding:0 0 4px;font-size:12px;white-space:nowrap}.hero{margin-top:30px;display:grid;grid-template-columns:1fr 1.06fr;min-height:515px;background:#e9e9dd;overflow:hidden}.hero-copy{padding:61px 40px 35px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero-copy .eyebrow{color:#5e6951}.hero h1{font-family:var(--serif);font-size:47px;line-height:1.46;font-weight:400;letter-spacing:3px;margin:25px 0 18px}.hero p{color:#6b7260;font-size:13px;line-height:2;margin:0 0 31px}.hero-img{position:relative;min-height:515px}.hero-img img{height:100%;width:100%;object-fit:cover;position:absolute}.hero-img .caption{position:absolute;bottom:25px;right:25px;left:25px;color:#f1ebd8;display:flex;justify-content:space-between;font-size:9px;letter-spacing:2px}.hero-foot{margin-top:32px;font-size:10px;letter-spacing:1px;color:#6b7260}.btn{border:1px solid var(--ink);background:var(--ink);color:var(--white);padding:13px 23px;border-radius:0;display:inline-flex;align-items:center;justify-content:center;gap:18px;font-size:12px;letter-spacing:1px;text-decoration:none}.btn.outline{background:transparent;color:var(--ink);border-color:#aeb2a2}.btn.light{background:#f3f0e5;color:#2a3327;border-color:#f3f0e5}.btn.full{width:100%}.value-row{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);padding:25px 0;font-size:11px;letter-spacing:1px}.value-row div{display:flex;justify-content:center;gap:10px;border-right:1px solid var(--line)}.value-row div:last-child{border:0}.value-row .icon{width:17px;height:17px}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:23px}.lesson-card{text-align:left;border:none;background:transparent;padding:0;display:block;width:100%}.cover{position:relative;overflow:hidden;background:#d7d6c7;aspect-ratio:1.35}.cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.lesson-card:hover .cover img{transform:scale(1.035)}.badge{position:absolute;left:13px;top:13px;background:rgba(250,249,242,.9);font-size:10px;letter-spacing:1px;padding:3px 10px}.duration{position:absolute;bottom:10px;right:12px;background:#253329aa;color:white;padding:1px 7px;font-size:10px}.lesson-meta{font-size:10px;color:var(--muted);letter-spacing:1px;margin:15px 0 5px}.lesson-card h3{font-family:var(--serif);font-size:19px;font-weight:400;margin:0 0 7px;letter-spacing:.7px}.lesson-card p{margin:0;color:var(--muted);font-size:11px}.play-circle{position:absolute;right:14px;top:14px;width:28px;height:28px;border:1px solid #eeecdb;border-radius:50%;display:grid;place-items:center;color:#eeecdb;font-size:10px}.feature{display:grid;grid-template-columns:1fr 1fr;background:#293b30;color:#f0eee2;margin-top:60px}.feature>img{width:100%;height:370px;object-fit:cover}.feature-copy{padding:38px 38px 25px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.feature .eyebrow{color:#c3c5aa}.feature h2{font-family:var(--serif);font-size:32px;line-height:1.5;font-weight:400;margin:17px 0}.feature p{font-size:12px;color:#c5cbbf;line-height:1.9;margin-bottom:25px}.feature-copy .price{font-size:21px;display:block;margin-bottom:22px}.feature-copy .price small{font-size:10px;margin-left:12px;color:#c5cbbf}.about-mini{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:45px 0;gap:30px}.about-mini h3{font-family:var(--serif);font-size:23px;font-weight:400;margin:4px 0 8px}.about-mini p{color:var(--muted);font-size:12px;max-width:520px;margin:0}.footer{text-align:center;font-size:10px;color:var(--muted);padding:30px 10px 0}.footer-links{display:flex;gap:25px;justify-content:center;flex-wrap:wrap;margin-bottom:18px}.footer button{border:0;background:none;color:var(--muted);font-size:11px;padding:0}.bottom-nav{display:none}.page-title{font-family:var(--serif);font-weight:400;font-size:36px;letter-spacing:3px;margin:24px 0 8px}.page-intro{color:var(--muted);font-size:13px;margin-bottom:30px}.back{border:0;background:none;padding:25px 0 0;color:var(--muted);font-size:12px}.filters{display:flex;gap:25px;align-items:center;border-bottom:1px solid var(--line);margin:25px 0;padding-bottom:15px}.filters button{border:0;background:none;color:var(--muted);padding:3px 0}.filters button.selected{color:var(--ink);border-bottom:1px solid}.search{background:transparent;border:0;border-bottom:1px solid var(--line);padding:12px 0;width:100%;margin:14px 0;outline:none}.detail-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;margin-top:30px}.detail-cover{width:100%;height:410px;object-fit:cover}.detail-body h1{font-family:var(--serif);font-size:34px;font-weight:400;line-height:1.5;margin:14px 0}.detail-body p{color:var(--muted);font-size:13px}.detail-price{font-family:var(--serif);font-size:35px;margin:18px 0}.benefits{list-style:none;padding:0;margin:25px 0}.benefits li{padding:9px 0;border-bottom:1px solid var(--line);font-size:12px}.benefits li:before{content:'✓';margin-right:14px;color:var(--gold)}.actions{display:flex;gap:10px;flex-wrap:wrap}.fineprint{font-size:11px;color:var(--muted);line-height:1.9;margin-top:16px}.panel{background:var(--white);border:1px solid var(--line);padding:25px;margin:18px 0}.panel h3{font-family:var(--serif);font-size:20px;font-weight:400;margin:0 0 15px}.row{display:flex;justify-content:space-between;align-items:center;gap:12px}.row+.row{margin-top:14px}.muted{color:var(--muted)}.small{font-size:11px}.chapter{display:flex;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);gap:22px;cursor:pointer}.chapter-num{font-family:var(--serif);font-size:23px;color:#929885}.chapter-main{flex:1}.chapter-main strong{font-weight:500;display:block}.chapter-main small{color:var(--muted)}.player{aspect-ratio:16/9;width:100%;background:#26382b;display:block;object-fit:contain}.empty{text-align:center;padding:75px 20px;background:#eeeee5;margin:25px 0}.empty h2{font-family:var(--serif);font-size:25px;font-weight:400}.empty p{color:var(--muted);font-size:12px;margin-bottom:25px}.profile{display:flex;align-items:center;gap:22px;padding:30px 0}.avatar{width:62px;height:62px;border-radius:50%;background:#dbe0d1;display:grid;place-items:center;font-family:var(--serif);font-size:25px}.profile h2{font-family:var(--serif);font-weight:400;margin:0 0 5px}.menu-list{border-top:1px solid var(--line)}.menu-item{width:100%;display:flex;align-items:center;gap:15px;background:none;border:0;border-bottom:1px solid var(--line);padding:20px 0;text-align:left}.menu-item span:nth-child(2){flex:1}.status{font-size:11px;color:#617451;background:#e9eee1;padding:4px 10px}.order-title{font-family:var(--serif);font-size:22px;font-weight:400;margin:15px 0}.money{font-family:var(--serif);font-size:22px}.field{display:block;margin:20px 0}.field>span{display:block;font-size:12px;margin-bottom:8px}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);background:var(--white);padding:12px;outline-color:var(--gold)}.field textarea{min-height:110px;resize:vertical}.check-row{display:flex;align-items:flex-start;gap:9px;font-size:12px;margin:20px 0}.check-row input{margin-top:5px;accent-color:var(--olive)}.check-row button{background:none;border:0;text-decoration:underline;padding:0;font-size:12px}.notice{background:#eeefe5;border-left:2px solid #879775;padding:12px 15px;font-size:12px;color:#667059;line-height:1.9}.modal-bg{position:fixed;inset:0;background:#17211788;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}.modal{background:var(--paper);width:500px;max-height:88vh;overflow:auto;padding:30px;box-shadow:0 20px 100px #0003}.modal h2{font-family:var(--serif);font-size:25px;font-weight:400;margin:0 0 15px}.modal p{line-height:1.9}.modal-close{float:right;background:none;border:0;font-size:24px;padding:0 5px}.document{white-space:pre-wrap;line-height:2;font-size:13px}.ticket-msg{border-left:2px solid var(--line);padding:0 0 20px 20px;margin-top:12px}.ticket-msg p{margin:7px 0}.thumb{width:72px;height:72px;object-fit:cover;margin:10px 10px 0 0}.image-preview{max-width:100%}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:#233323;color:#fff;padding:12px 22px;font-size:12px;max-width:90%;z-index:200;opacity:0;pointer-events:none;transition:opacity .15s}#toast.show{opacity:1}.loading{padding:100px;text-align:center;letter-spacing:3px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:25px}.admin-body{background:#f2f1eb}.admin-header{background:#26382d;color:#eeeee4;padding:18px 30px;display:flex;justify-content:space-between;align-items:center}.admin-header a{font-size:12px}.admin-layout{max-width:1320px;padding:25px;margin:auto;display:grid;grid-template-columns:165px 1fr;gap:28px}.admin-nav button{display:block;border:0;background:none;padding:15px 10px;text-align:left;width:100%;font-size:13px}.admin-nav button.active{background:#e0e5d6}.admin-content{min-width:0}.admin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}.admin-toolbar h1{font-family:var(--serif);font-weight:400}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.stat{background:var(--white);padding:23px;border:1px solid var(--line)}.stat strong{font-family:var(--serif);font-size:32px;display:block;font-weight:400}.stat span{font-size:12px;color:var(--muted)}.table-scroll{overflow:auto;background:var(--white);border:1px solid var(--line);margin:24px 0}table{border-collapse:collapse;width:100%;white-space:nowrap;font-size:12px}th,td{text-align:left;padding:15px;border-bottom:1px solid var(--line)}th{background:#e9ecdf;font-weight:500}td button{font-size:11px;border:1px solid #a8b19a;background:none;padding:5px 9px}.admin-note{font-size:12px;color:var(--muted);margin:18px 0}.empty-cell{text-align:center;padding:50px;color:var(--muted)}
@media(min-width:1350px){.hero{min-height:565px}.hero-img{min-height:565px}.hero h1{font-size:50px}}
@media(max-width:700px){.demo-strip{font-size:9px;height:25px;line-height:25px}.demo-strip a{margin-left:10px}.header{height:78px;padding:0 22px;justify-content:center;position:relative}.header .nav{display:none}.header-right{position:absolute;right:20px}.header-right button:first-child{display:none}.brand strong{font-size:28px}.brand small{font-size:7px}.main{padding:0 20px 100px}.hero{margin:20px -20px 0;display:block;position:relative;background:#364e3b;min-height:530px}.hero-img{position:absolute;inset:0;min-height:0}.hero-img:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#0f251ddd,transparent 95%)}.hero-img img{object-position:61% center}.hero-img .caption{bottom:19px;right:20px;left:24px;z-index:2;font-size:8px}.hero-copy{position:relative;z-index:2;padding:45px 25px 60px;min-height:530px;color:#f4efdc;justify-content:center}.hero h1{font-size:37px;line-height:1.6;letter-spacing:2px;margin:24px 0 17px}.hero-copy .eyebrow{color:#d2d7bf;font-size:9px}.hero p{color:#d4daca;font-size:12px;max-width:240px}.hero .btn{background:#f2efdf;border-color:#f2efdf;color:#293b2a}.hero-foot{color:#d8dbc9;margin-top:24px;font-size:9px}.value-row{padding:20px 0;font-size:9px;gap:4px}.value-row div{gap:5px}.value-row .icon{width:14px;height:14px}.section-head{margin:36px 0 20px}.section-head h2{font-size:24px}.eyebrow{font-size:9px;letter-spacing:1.8px}.text-link{font-size:10px}.lesson-grid{grid-template-columns:repeat(2,1fr);gap:23px 14px}.home-lessons .lesson-card:last-child{display:none}.cover{aspect-ratio:.95}.lesson-meta{font-size:9px;margin:11px 0 5px}.lesson-card h3{font-size:16px}.lesson-card p{font-size:10px}.badge{left:8px;top:8px;padding:2px 7px;font-size:9px}.play-circle{width:22px;height:22px;right:8px;top:8px}.feature{margin-top:35px;grid-template-columns:1fr}.feature>img{height:240px}.feature-copy{padding:27px 24px 30px}.feature h2{font-size:28px}.feature-copy .price{margin-bottom:19px}.about-mini{padding:30px 0;align-items:start}.about-mini h3{font-size:21px}.about-mini p{font-size:11px}.footer{font-size:9px;padding-top:23px}.footer-links{gap:17px}.footer button{font-size:10px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:40;background:#fcfbf5f5;backdrop-filter:blur(15px);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:8px 0 max(8px,env(safe-area-inset-bottom))}.bottom-nav button{border:0;background:none;padding:3px 0;color:#8c9082;font-size:10px;display:flex;flex-direction:column;gap:3px;align-items:center}.bottom-nav button.active{color:#283e29}.bottom-nav .icon{width:22px;height:22px}.page-title{font-size:30px}.page-intro{font-size:12px}.detail-layout{grid-template-columns:1fr;gap:24px;margin-top:23px}.detail-cover{height:285px}.detail-body h1{font-size:30px}.two-col{grid-template-columns:1fr;gap:0}.panel{padding:19px}.modal-bg{align-items:flex-end;padding:0}.modal{width:100%;padding:25px 23px max(30px,env(safe-area-inset-bottom));max-height:85vh}.actions .btn{flex:1;gap:7px;padding:13px 10px}.filters{gap:22px;font-size:12px}.admin-layout{grid-template-columns:1fr;padding:15px;gap:10px}.admin-nav{display:flex;overflow:auto}.admin-nav button{white-space:nowrap}.admin-header{padding:15px;font-size:12px}.stats{gap:10px}.stat{padding:14px}.stat strong{font-size:25px}.admin-toolbar h1{font-size:25px}}