:root{
    --primary:#E9573F;
    --primary-2:#F2764F;
    --primary-light:#F8B39E;
    --primary-soft:#FFF0E9;
    --purple:#805A78;
    --purple-soft:#F4EDF2;
    --navy:#24201F;
    --navy-2:#191615;
    --navy-3:#100E0D;
    --bg:#F7F3EC;
    --bg-2:#EEE8DE;
    --bg-3:#FCFAF6;
    --surface:#FFFFFF;
    --surface-dark:#292321;
    --surface-dark-2:#39302C;
    --text:#241F1D;
    --text-2:#675E59;
    --text-3:#9A8F87;
    --line:rgba(70,52,45,.10);
    --line-strong:rgba(233,87,63,.26);
    --shadow:0 6px 24px rgba(63,42,34,.08);
    --shadow-hover:0 16px 38px rgba(63,42,34,.15);
    --radius:10px;
    --radius-card:14px;
    --radius-large:20px;
    --wrap:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}
body.search-open{overflow:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
img{display:block;max-width:100%;height:auto}
button,input,select{font:inherit}
button{cursor:pointer}
.wrap{width:min(var(--wrap),calc(100% - 40px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:-80px;z-index:200;background:var(--navy);color:#fff;padding:10px 14px;border-radius:8px}
.skip-link:focus{top:12px;color:#fff}
:focus-visible{outline:3px solid var(--primary-light);outline-offset:3px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.eyebrow:before{content:"";width:18px;height:2px;background:currentColor}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border:1px solid var(--primary);border-radius:999px;background:var(--primary);color:#fff;font-weight:800;transition:.2s ease}
.btn:hover{background:var(--primary-2);border-color:var(--primary-2);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary)}
.text-link{color:var(--primary);font-weight:800}
.lead{font-size:clamp(1rem,1.4vw,1.18rem);color:var(--text-2);max-width:720px}
.daily-brief{min-height:29px;background:var(--navy);color:rgba(255,255,255,.78);font-size:.78rem}
.brief-inner{display:flex;align-items:center;gap:24px;min-height:29px;white-space:nowrap;overflow:hidden}
.brief-inner strong{color:var(--primary-light)}
.brief-inner a{margin-left:auto;color:#fff}
.site-header{position:sticky;top:0;z-index:100;height:68px;background:rgba(247,243,236,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(16px);transition:.2s ease}
.site-header.scrolled{background:rgba(255,252,247,.97);box-shadow:0 7px 20px rgba(63,42,34,.06)}
.header-inner{height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:9px;font-size:1.4rem;font-weight:900;letter-spacing:-.04em}
.brand img{width:34px;height:34px;object-fit:contain;border-radius:10px}
.desktop-nav{display:flex;align-items:stretch;height:100%;gap:22px;margin-left:8px}
.desktop-nav a{position:relative;display:flex;align-items:center;color:var(--text-2);font-size:.9rem;font-weight:700}
.desktop-nav a.active{color:var(--primary)}
.desktop-nav a.active:after{content:"";position:absolute;left:50%;bottom:0;width:24px;height:2px;background:var(--primary);transform:translateX(-50%)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.header-link,.icon-btn{border:0;background:transparent;color:var(--text-2);font-weight:700;font-size:.85rem;padding:8px 9px;border-radius:8px}
.icon-btn:hover,.header-link:hover{background:var(--primary-soft);color:var(--primary)}
.home-hero{padding:72px 0 56px;background:linear-gradient(135deg,#F7F3EC 0%,#FFF0E9 58%,#EEE8DE 100%)}
.hero-editorial-grid{display:grid;grid-template-columns:4fr 5fr 3fr;gap:28px;align-items:center}
.hero-copy h1,.page-hero h1{font-size:clamp(2.35rem,5vw,5.25rem);line-height:.98;letter-spacing:-.06em;margin:18px 0 22px;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.hero-image{margin:0;min-height:520px;border-radius:var(--radius-large);overflow:hidden;box-shadow:var(--shadow-hover);background:var(--bg-2)}
.hero-image img{width:100%;height:100%;min-height:520px;object-fit:cover}
.hero-focus{display:grid;gap:12px}
.hero-focus>a{display:grid;gap:7px;padding:18px 0;border-bottom:1px solid var(--line)}
.hero-focus strong{font-size:.75rem;color:var(--primary)}
.hero-focus span{font-weight:800;line-height:1.45}
.hero-search,.search-page-form,.search-form{display:flex;gap:8px;margin-top:28px}
.hero-search input,.search-page-form input,.search-form input{width:100%;min-height:48px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:0 18px;color:var(--text);box-shadow:var(--shadow)}
.hero-search button,.search-page-form button,.search-form button{border:0;border-radius:999px;background:var(--navy);color:#fff;font-weight:800;padding:0 18px}
.content-section{padding:76px 0}
.section-white{background:var(--surface)}
.section-cream{background:var(--bg)}
.section-sand{background:var(--bg-2)}
.section-dark{background:var(--navy);color:#fff}
.section-dark p,.section-dark .section-head p{color:rgba(255,255,255,.7)}
.section-dark a{color:var(--primary-light)}
.section-head{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;max-width:820px;margin-bottom:30px}
.section-head h2,.section-copy h2,.content-section h2{font-size:clamp(1.7rem,3vw,3rem);line-height:1.08;letter-spacing:-.04em;margin:6px 0 8px}
.section-head p,.section-copy p{color:var(--text-2);margin:0}
.section-index{font-size:.76rem;font-weight:900;color:var(--primary)}
.tag-wall{display:flex;flex-wrap:wrap;gap:10px}
.tag-wall a,.chip{padding:8px 13px;border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--text-2);font-size:.86rem;font-weight:750}
.tag-wall a:hover,.tag-wall a.active{border-color:var(--primary);background:var(--primary-soft);color:var(--primary)}
.dark-tags a{background:var(--surface-dark-2);border-color:rgba(255,255,255,.12);color:#fff}
.focus-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}
.focus-lead{overflow:hidden;border-radius:var(--radius-large);background:var(--navy);color:#fff;min-height:480px;display:grid;grid-template-rows:1fr auto}
.focus-lead img{width:100%;height:300px;object-fit:cover}
.focus-lead>div{padding:24px}
.focus-lead p{color:rgba(255,255,255,.72)}
.pill{display:inline-block;padding:5px 9px;border-radius:999px;background:var(--primary);font-size:.72rem;font-weight:800}
.focus-small{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.focus-small.standalone{grid-template-columns:repeat(3,1fr)}
.focus-small article{padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff}
.focus-small span{font-size:.74rem;color:var(--primary);font-weight:800}
.focus-small h3{margin:8px 0;font-size:1.05rem;line-height:1.4}
.focus-small p{font-size:.9rem;color:var(--text-2)}
.challenge-row{display:flex;gap:12px;overflow:auto;padding:4px 0 12px;scroll-snap-type:x mandatory}
.challenge-row article{min-width:260px;flex:1;padding:20px;border-radius:var(--radius-card);background:var(--surface-dark);border:1px solid rgba(255,255,255,.1);scroll-snap-align:start}
.challenge-row.light article{background:#fff;color:var(--text);border-color:var(--line)}
.banner-inline{margin:28px 0 0;border-radius:var(--radius-large);overflow:hidden;max-height:280px}
.banner-inline img{width:100%;height:280px;object-fit:cover}
.timeline{position:relative;display:grid;gap:18px;margin-left:8px}
.timeline:before{content:"";position:absolute;left:48px;top:8px;bottom:8px;width:1px;background:var(--line-strong)}
.timeline article{display:grid;grid-template-columns:72px 1fr;gap:20px;align-items:start}
.timeline time{color:var(--primary);font-weight:900;font-size:.8rem;padding-top:3px;position:relative;background:inherit}
.timeline h3{margin:0 0 4px}
.timeline p{margin:0;color:var(--text-2)}
.horizontal-list{display:flex;gap:14px;overflow:auto;padding:4px 0 18px;scroll-snap-type:x proximity}
.horizontal-list article,.poster-feature{min-width:270px;max-width:310px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line);padding:18px;scroll-snap-align:start}
.poster-feature{padding:0;overflow:hidden}
.poster-feature img{width:100%;height:100%;min-height:230px;object-fit:cover}
.horizontal-list span{color:var(--primary);font-size:.75rem;font-weight:800}
.dual-board{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;align-items:stretch}
.dual-board figure{margin:0;border-radius:var(--radius-large);overflow:hidden}
.dual-board figure img{width:100%;height:100%;object-fit:cover}
.board-list{display:grid;gap:10px}
.board-list article{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.board-list>article>span{font-weight:900;color:var(--primary)}
.board-list h3,.board-list p{margin:0}
.board-list p{color:var(--text-2);font-size:.9rem}
.video-wall{columns:3;column-gap:14px}
.video-wall article{break-inside:avoid;margin:0 0 14px;padding:12px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line)}
.video-wall article:nth-child(3n+1) img{aspect-ratio:4/5}
.video-wall article:nth-child(3n+2) img{aspect-ratio:16/10}
.video-wall article:nth-child(3n) img{aspect-ratio:1/1}
.video-wall img{width:100%;object-fit:cover;border-radius:10px}
.video-tile span{display:block;margin-top:10px;color:var(--primary);font-size:.72rem;font-weight:800}
.video-tile h3{margin:5px 0}.video-tile p{font-size:.88rem;color:var(--text-2)}
.split-media{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}.split-media.reverse figure{order:2}.split-media figure{margin:0;border-radius:var(--radius-large);overflow:hidden}.split-media figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rank-list{display:grid}.rank-list article{display:grid;grid-template-columns:60px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.rank{font-weight:900;color:var(--primary)}.rank-list h3,.rank-list p{margin:0}.rank-list p{color:var(--text-2)}
.category-mosaic{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.category-mosaic>a{min-height:150px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}.category-mosaic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.14}.category-mosaic span,.category-mosaic small{position:relative}.category-mosaic span{font-weight:900}.category-mosaic small{color:var(--text-2);margin-top:6px}.section-dark .category-mosaic>a{background:var(--surface-dark);border-color:rgba(255,255,255,.1)}
.editorial-feature{display:grid;grid-template-columns:1fr .8fr;gap:34px;align-items:center}.editorial-feature img{border-radius:var(--radius-large);width:100%;max-height:420px;object-fit:cover}
.path-line{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.path-line li{border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;background:#fff}.path-line>li>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-weight:900}.path-line h3{margin:12px 0 4px}.path-line p{font-size:.88rem;color:var(--text-2)}
.mini-course{display:grid;grid-template-columns:1fr 1fr auto;gap:30px;align-items:center}.number-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.number-steps span{padding:9px 12px;background:#fff;border-radius:8px;border:1px solid var(--line)}
.split-panel{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.home-learning{padding:0}.stateless-meter,.editor-columns,.sound-stack,.tone-scale{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.stateless-meter b,.editor-columns span,.sound-stack span,.tone-scale span{padding:12px;border-radius:10px;background:#fff;border:1px solid var(--line)}
.split-dark{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}.split-dark ol{margin:0;padding-left:22px;display:grid;gap:10px}.section-dark .editor-columns span{background:var(--surface-dark-2);border-color:rgba(255,255,255,.12)}
.ai-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:14px;align-items:stretch}.ai-do,.ai-dont{padding:22px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line)}.ai-dont{background:var(--purple-soft);border-color:rgba(128,90,120,.16)}
.tutorial-table{display:grid}.tutorial-table article{display:grid;grid-template-columns:55px 1fr auto;gap:14px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}.tutorial-table h3,.tutorial-table p{margin:0}.tutorial-table p,.tutorial-table small{color:var(--text-2)}
.learning-route{display:grid;grid-template-columns:repeat(7,1fr);list-style:none;padding:0;counter-reset:route;gap:8px}.learning-route li{counter-increment:route;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;min-height:105px}.learning-route li:before{content:"0" counter(route);display:block;color:var(--primary);font-weight:900;margin-bottom:10px}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.quick-card{padding:18px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line)}.quick-card h3{margin:0 0 8px;font-size:1rem}.quick-card p{margin:0;color:var(--text-2);font-size:.9rem}
.chip-list{display:flex;flex-wrap:wrap;gap:9px;align-content:flex-start}.chip.purple{background:var(--purple-soft);color:var(--purple);border-color:rgba(128,90,120,.18)}
.workflow-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}.workflow-cards article{padding:20px;border-radius:var(--radius-card);background:var(--surface-dark);border:1px solid rgba(255,255,255,.1)}.workflow-cards.light article{background:#fff;color:var(--text);border-color:var(--line)}.workflow-cards h3{margin-top:0}.workflow-cards ol{padding-left:18px}.workflow-cards p{font-size:.9rem}
.case-row{display:flex;gap:12px;overflow:auto}.case-row article{min-width:310px;flex:1;padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff}.case-row p{color:var(--text-2)}
.one-take{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}.one-take-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.one-take-steps span{padding:16px;text-align:center;border-radius:10px;background:#fff;border:1px solid var(--line);font-weight:800}
.live-slice,.safety-grid,.app-grid,.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}.live-slice img,.safety-grid img,.about-grid img{border-radius:var(--radius-large);width:100%;max-height:420px;object-fit:cover}
.notes-grid,.discussion-grid,.pick-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.notes-grid article,.discussion-card,.pick-columns article{padding:18px;border-radius:var(--radius-card);background:#fff;border:1px solid var(--line)}.discussion-card>span,.pick-columns span{color:var(--primary);font-size:.75rem;font-weight:800}.discussion-card h3{margin:7px 0}.discussion-card p,.notes-grid p{color:var(--text-2);font-size:.9rem}.like-button{border:0;background:var(--primary-soft);color:var(--primary);padding:6px 10px;border-radius:999px;font-weight:800}.like-button.liked{background:var(--primary);color:#fff}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.checklist label{display:flex;gap:10px;align-items:flex-start;padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff}.checklist input{accent-color:var(--primary);margin-top:6px}
.safety-links,.cta-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.device-pair{display:grid;grid-template-columns:1.3fr .7fr;gap:12px;align-items:end}.device-pair img{width:100%;max-height:420px;object-fit:contain}.about-home p{color:var(--text-2)}
.faq-list{display:grid;gap:9px}.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden}.faq-item h3{margin:0}.faq-button{width:100%;display:flex;justify-content:space-between;gap:20px;padding:17px 18px;border:0;background:#fff;text-align:left;color:var(--text);font-weight:850}.faq-panel{padding:0 18px 18px}.faq-panel p{margin:0;color:var(--text-2)}
.page-hero{padding:68px 0;background:linear-gradient(135deg,#F7F3EC 0%,#FFF0E9 58%,#EEE8DE 100%)}.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}.page-hero-copy h1{font-size:clamp(2.5rem,5vw,4.8rem)}.media-frame{margin:0;border-radius:var(--radius-large);overflow:hidden;background:var(--bg-2);box-shadow:var(--shadow)}.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}.compact-hero{padding:60px 0}.trust-note{padding:12px 14px;border-left:3px solid var(--primary);background:rgba(255,255,255,.52);color:var(--text-2)}
.knowledge-grid,.step-band,.compact-list{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.content-section .section-copy p{max-width:720px}.content-section .section-copy h2{margin-top:6px}.section-dark .section-copy p{color:rgba(255,255,255,.7)}.section-dark .chip{background:var(--surface-dark-2);border-color:rgba(255,255,255,.12);color:#fff}
.tutorial-mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.tutorial-card{padding:18px;border-radius:var(--radius-card);border:1px solid var(--line);background:#fff}.tutorial-card h3{font-size:1rem}.tutorial-card p{color:var(--text-2)}
.case-strip,.cta-panel{display:flex;justify-content:space-between;gap:32px;align-items:center}.case-strip>div,.cta-panel>div{max-width:760px}.filter-bar{display:flex;gap:10px;align-items:end;flex-wrap:wrap}.filter-bar label{display:grid;gap:5px;color:var(--text-2);font-size:.84rem}.filter-bar select{min-width:180px;padding:10px 34px 10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text)}
.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.level-grid a{padding:17px;border-radius:12px;background:#fff;border:1px solid var(--line)}.level-grid h3{margin:0}.level-grid p{font-size:.85rem;color:var(--text-2)}
.case-detail{display:grid;grid-template-columns:.75fr 1.25fr;gap:36px}.case-detail dl{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}.case-detail dl>div{padding:12px;background:#fff;border:1px solid var(--line);border-radius:10px}.case-detail dt{color:var(--primary);font-weight:800;font-size:.75rem}.case-detail dd{margin:5px 0 0;color:var(--text-2)}
.side-image{width:100%;max-height:380px;object-fit:cover;border-radius:var(--radius-large)}
.search-results{display:grid;gap:10px}.search-results article{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}.search-results article>span{color:var(--primary);font-size:.74rem;font-weight:800}.search-results h2{font-size:1.2rem;margin:6px 0}.search-results p{margin:0;color:var(--text-2)}
.about-long{max-width:900px}.about-long p{font-size:1.03rem;color:var(--text-2)}
.site-drawer{position:fixed;inset:0;z-index:150;background:rgba(16,14,13,.52);display:flex;justify-content:flex-end}.site-drawer[hidden]{display:none !important}.drawer-panel{width:min(430px,92vw);height:100%;background:var(--bg-3);padding:24px;box-shadow:-18px 0 50px rgba(0,0,0,.18);overflow:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center}.drawer-head h2{font-size:1.4rem}.drawer-close{border:0;background:var(--primary-soft);color:var(--primary);padding:9px 12px;border-radius:8px}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:20px}.drawer-links a{padding:13px;border-radius:10px;background:#fff;border:1px solid var(--line);font-weight:750}
.search-modal{display:none;position:fixed;inset:0;z-index:170;align-items:flex-start;justify-content:center;background:rgba(16,14,13,.72);padding:9vh 20px 20px}
.search-modal.is-open{display:flex}
.search-modal[hidden]{display:none !important;pointer-events:none}
.search-dialog{width:min(760px,100%);background:var(--bg-3);border-radius:var(--radius-large);padding:26px;box-shadow:0 28px 80px rgba(0,0,0,.24)}
.search-dialog-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.search-dialog-head h2{margin:4px 0 0;font-size:2rem}.search-close{border:0;background:var(--primary-soft);color:var(--primary);padding:9px 12px;border-radius:8px}.search-suggestions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.search-suggestions a{padding:7px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.85rem}
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