@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.table{display:table}}:root{--paper:#fff8ed;--paper-strong:#fffdf8;--ink:#17213c;--ink-soft:#566078;--line:#17213c;--coral:#ff6846;--coral-dark:#d9472b;--sky:#ccecff;--lime:#ddf58a;--lavender:#ddd4ff;--sun:#ffd86e;--mint:#bfead8;--shadow:5px 5px 0 #17213cf2;--soft-shadow:0 18px 45px #17213c17;--radius-lg:28px;--radius-md:19px;--radius-sm:12px;--max-width:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 8% 3%, #ddf58a85, transparent 22rem), radial-gradient(circle at 94% 14%, #ccecffad, transparent 24rem), var(--paper);color:var(--ink);text-rendering:optimizelegibility;margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Noto Sans CJK SC,Microsoft YaHei,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--coral);outline-offset:3px}::selection{background:var(--sun);color:var(--ink)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;border:2px solid var(--line);background:var(--paper-strong);border-radius:999px;padding:10px 16px;font-weight:800;transition:top .16s;position:fixed;top:-70px;left:16px}.skip-link:focus{top:14px}.site-shell{width:min(calc(100% - 32px), var(--max-width));margin:0 auto}.site-header{z-index:50;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fff8edeb;border-bottom:2px solid #17213ceb;position:sticky;top:0}.header-main{align-items:center;gap:24px;min-height:72px;display:flex}.brand{letter-spacing:-.05em;flex:none;align-items:center;gap:9px;font-size:23px;font-weight:950;display:inline-flex}.brand-mark{border:2px solid var(--line);background:var(--coral);width:34px;height:34px;box-shadow:3px 3px 0 var(--ink);color:#fff;border-radius:11px 11px 4px;place-items:center;font-size:17px;line-height:1;display:grid;transform:rotate(-3deg)}.brand-en{letter-spacing:.1em;opacity:.65;font-size:10px;font-weight:900}.top-nav{scrollbar-width:none;flex:1;align-items:center;gap:4px;min-width:0;display:flex;overflow-x:auto}.top-nav::-webkit-scrollbar{display:none}.nav-link{color:var(--ink-soft);border-radius:999px;flex:none;padding:8px 11px;font-size:14px;font-weight:720;transition:all .15s}.nav-link:hover{background:var(--paper-strong);color:var(--ink);transform:translateY(-1px)}.header-note{border:1.5px solid var(--line);background:var(--lime);border-radius:999px;flex:none;align-items:center;gap:7px;padding:8px 12px;font-size:12px;font-weight:850;display:inline-flex}.live-dot{background:var(--coral-dark);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #d9472b21}.main{padding:34px 0 72px}.prototype-note{border:1.5px dashed var(--line);border-radius:var(--radius-sm);color:var(--ink-soft);background:#fffdf8cc;align-items:flex-start;gap:12px;margin-bottom:22px;padding:13px 16px;font-size:13px;display:flex}.prototype-note strong{color:var(--ink)}.prototype-note.live-note{background:#ddf58a75;border-style:solid}.prototype-note.archive-note{border-color:var(--coral-dark);background:#ffd0c580}.prototype-note.loading-note{background:#ccecff94}.prototype-icon{background:var(--sun);width:22px;height:22px;color:var(--ink);border-radius:50%;flex:none;place-items:center;font-weight:950;display:grid}.hero{grid-template-columns:minmax(0,1.65fr) minmax(280px,.8fr);align-items:stretch;gap:22px;display:grid}.hero-main,.hero-side{border:2px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}.hero-main{background:var(--sky);flex-direction:column;justify-content:space-between;min-height:470px;padding:clamp(28px,5vw,56px);display:flex;position:relative}.hero-main:after{content:"";border:2px solid var(--line);background:var(--coral);border-radius:46% 54% 60% 40%;width:210px;height:210px;position:absolute;top:-66px;right:-58px;transform:rotate(18deg)}.hero-main>*{z-index:1;position:relative}.kicker-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.kicker,.status-chip,.category-pill,.word-level{letter-spacing:.03em;border-radius:999px;align-items:center;width:fit-content;font-size:12px;font-weight:900;display:inline-flex}.kicker{border:1.5px solid var(--line);background:var(--paper-strong);padding:7px 11px}.status-chip{background:var(--coral);color:#fff;padding:7px 11px}.live-chip,.archive-chip{border:1.5px solid var(--line);border-radius:999px;align-items:center;width:fit-content;padding:6px 10px;font-size:12px;font-weight:900;display:inline-flex}.live-chip{background:var(--lime)}.archive-chip{background:var(--sun)}.display-title{letter-spacing:-.075em;max-width:15ch;margin:26px 0 16px;font-size:clamp(43px,7vw,78px);font-weight:950;line-height:.98}.display-deck{color:#34405d;max-width:42rem;margin:0;font-size:clamp(16px,2vw,20px);line-height:1.7}.edition-switch{border:2px solid var(--line);background:var(--paper-strong);width:fit-content;box-shadow:3px 3px 0 var(--ink);border-radius:999px;margin-top:34px;padding:5px;display:inline-flex}.edition-link{text-align:center;min-width:88px;color:var(--ink-soft);border-radius:999px;padding:9px 14px;font-size:14px;font-weight:850}.edition-link.active{background:var(--ink);color:#fff}.hero-side{background:var(--lavender);flex-direction:column;display:flex}.hero-side-head{border-bottom:2px solid var(--line);padding:22px 24px 16px}.eyebrow{color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px;font-size:12px;font-weight:900}.hero-side-title{letter-spacing:-.04em;margin:0;font-size:24px;line-height:1.25}.brief-list{flex-direction:column;flex:1;display:flex}.brief-link{border-bottom:1.5px solid #17213c9e;flex:1;grid-template-columns:38px 1fr;gap:12px;padding:18px 22px;transition:all .15s;display:grid}.brief-link:last-child{border-bottom:0}.brief-link:hover{background:#ffffff6b}.brief-index{border:1.5px solid var(--line);background:var(--paper-strong);border-radius:50%;place-items:center;width:30px;height:30px;font-size:12px;font-weight:950;display:grid}.brief-title{margin:0;font-size:15px;font-weight:820;line-height:1.55}.section{margin-top:64px}.section-head{justify-content:space-between;align-items:end;gap:18px;margin-bottom:22px;display:flex}.section-title{letter-spacing:-.055em;margin:0;font-size:clamp(28px,4vw,42px);line-height:1.08}.section-copy{max-width:34rem;color:var(--ink-soft);margin:7px 0 0;font-size:14px}.text-link{color:var(--coral-dark);align-items:center;gap:7px;font-size:14px;font-weight:900;display:inline-flex}.text-link:after{content:"→";transition:transform .15s}.text-link:hover:after{transform:translate(4px)}.category-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.category-card{border:2px solid var(--line);border-radius:var(--radius-md);background:var(--paper-strong);min-height:165px;box-shadow:3px 3px 0 var(--ink);flex-direction:column;justify-content:space-between;padding:20px;transition:transform .16s,box-shadow .16s;display:flex}.category-card:nth-child(4n+1){background:var(--lime)}.category-card:nth-child(4n+2){background:var(--sky)}.category-card:nth-child(4n+3){background:var(--sun)}.category-card:nth-child(4n+4){background:var(--lavender)}.category-card:hover{box-shadow:6px 6px 0 var(--ink);transform:translate(-2px,-2px)rotate(-.4deg)}.category-top{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.category-code{letter-spacing:.08em;opacity:.65;font-size:12px;font-weight:900}.category-arrow{border:1.5px solid var(--line);background:var(--paper-strong);border-radius:50%;place-items:center;width:32px;height:32px;font-weight:950;display:grid}.category-name{letter-spacing:-.04em;margin:20px 0 2px;font-size:22px;line-height:1.15}.category-description{color:#3f4a66;margin:0;font-size:12px;line-height:1.5}.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.news-card{border:2px solid var(--line);border-radius:var(--radius-md);background:var(--paper-strong);min-height:380px;box-shadow:var(--soft-shadow);flex-direction:column;transition:transform .17s,box-shadow .17s;display:flex;overflow:hidden}.news-card:hover{transform:translateY(-5px);box-shadow:0 24px 50px #17213c24}.news-visual{border-bottom:2px solid var(--line);background:var(--card-color,var(--sky));justify-content:space-between;align-items:flex-end;min-height:110px;padding:16px;display:flex;position:relative;overflow:hidden}.news-visual:after{content:"";border:2px solid var(--line);background:#ffffff73;border-radius:46% 54% 42% 58%;width:90px;height:90px;position:absolute;top:-24px;right:-17px;transform:rotate(24deg)}.category-pill{z-index:1;border:1.5px solid var(--line);background:var(--paper-strong);padding:5px 9px;position:relative}.visual-word{z-index:1;text-align:right;letter-spacing:.02em;max-width:13ch;font-size:13px;font-weight:900;position:relative}.news-card-body{flex-direction:column;flex:1;padding:20px;display:flex}.news-meta{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:8px;font-size:11px;font-weight:700;display:flex}.news-meta span+span:before{content:"·";margin-right:8px}.news-title{letter-spacing:-.035em;margin:13px 0 10px;font-size:21px;line-height:1.38}.news-deck{color:var(--ink-soft);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0;font-size:13px;line-height:1.7;display:-webkit-box;overflow:hidden}.news-card-footer{justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:18px;display:flex}.learn-chip{background:var(--lime);border-radius:999px;align-items:center;gap:6px;padding:6px 9px;font-size:11px;font-weight:850;display:inline-flex}.learn-chip:before{content:"Aa";font-size:10px;font-weight:950}.read-more{color:var(--coral-dark);font-size:12px;font-weight:900}.page-hero{border:2px solid var(--line);border-radius:var(--radius-lg);background:var(--hero-color,var(--sky));box-shadow:var(--shadow);padding:clamp(28px,5vw,54px)}.breadcrumb{color:var(--ink-soft);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;font-weight:750;display:flex}.breadcrumb a:hover{color:var(--coral-dark)}.page-title{letter-spacing:-.07em;max-width:18ch;margin:0;font-size:clamp(42px,7vw,76px);line-height:1}.page-deck{color:#3d4863;max-width:46rem;margin:16px 0 0;font-size:17px}.category-toolbar{justify-content:space-between;align-items:center;gap:16px;margin:30px 0 20px;display:flex}.live-story-state{flex-direction:column;justify-content:center;min-height:48vh;display:flex}.result-count{color:var(--ink-soft);margin:0;font-size:13px;font-weight:750}.article-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:28px;display:grid}.article-main{min-width:0}.article-header{border:2px solid var(--line);border-radius:var(--radius-lg);background:var(--article-color,var(--sky));box-shadow:var(--shadow);padding:clamp(24px,5vw,52px)}.article-title{letter-spacing:-.065em;max-width:16ch;margin:20px 0 16px;font-size:clamp(38px,6.5vw,66px);line-height:1.06}.article-deck{color:#34405d;max-width:46rem;margin:0;font-size:clamp(16px,2vw,20px)}.article-facts{color:var(--ink-soft);flex-wrap:wrap;gap:9px 16px;margin-top:26px;font-size:12px;font-weight:750;display:flex}.article-content{border-radius:var(--radius-lg);background:#fffdf8eb;border:1.5px solid #17213c47;margin-top:24px;padding:clamp(24px,5vw,46px)}.article-content p{margin:0 0 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var(--ink);transform:translate(-1px,-1px)}.copy-button:active{box-shadow:none;transform:translate(1px,1px)}.source-box{border-radius:var(--radius-md);background:var(--paper-strong);border:1.5px solid #17213c4d;margin-top:22px;padding:22px}.source-title{margin:0 0 12px;font-size:15px}.source-list{gap:9px;margin:0;padding:0;list-style:none;display:grid}.source-link{background:#f4f1e9;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;font-size:13px;font-weight:750;display:flex}.source-link:hover{background:var(--sky)}.source-link:after{content:"↗";flex:none;font-weight:950}.article-sidebar{position:sticky;top:96px}.learning-panel{border:2px solid var(--line);border-radius:var(--radius-lg);background:var(--lavender);box-shadow:var(--shadow);padding:22px}.learning-title{letter-spacing:-.04em;margin:0;font-size:25px;line-height:1.2}.learning-copy{color:#4c5670;margin:8px 0 18px;font-size:13px}.word-list{gap:9px;display:grid}.word-card{border:1.5px solid var(--line);background:var(--paper-strong);border-radius:14px;overflow:hidden}.word-card summary{cursor:pointer;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;list-style:none;display:flex}.word-card summary::-webkit-details-marker{display:none}.word-card summary:after{content:"+";background:var(--lime);border-radius:50%;place-items:center;width:23px;height:23px;font-weight:950;display:grid}.word-card[open] summary:after{content:"−"}.word-head{min-width:0}.word-en{font-size:16px;font-weight:900;line-height:1.2;display:block}.word-zh{color:var(--ink-soft);margin-top:3px;font-size:11px;font-weight:700;display:block}.word-detail{border-top:1px dashed #17213c4d;padding:0 14px 14px}.phonetic{color:var(--coral-dark);margin:11px 0 8px;font-size:12px;font-weight:850}.word-example{margin:0;font-size:12px;line-height:1.65}.word-example-zh{color:var(--ink-soft);margin-top:4px;display:block}.word-level{background:var(--sky);margin-top:8px;padding:3px 7px}.empty-state{border:2px dashed var(--line);border-radius:var(--radius-lg);background:var(--paper-strong);text-align:center;padding:60px 24px}.empty-state h2{margin:0 0 8px;font-size:28px}.site-footer{border-top:2px solid var(--line);background:var(--ink);color:#fff}.footer-inner{justify-content:space-between;align-items:flex-end;gap:24px;padding:38px 0;display:flex}.footer-brand{margin:0 0 6px;font-size:26px;font-weight:950}.footer-copy,.footer-note{color:#ffffffad;margin:0;font-size:12px}.footer-note{text-align:right;max-width:34rem}@media (max-width:980px){.header-note{display:none}.hero{grid-template-columns:1fr}.hero-main{min-height:430px}.hero-side{min-height:360px}.category-grid,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:1fr}.article-sidebar{position:static}.learning-panel{box-shadow:4px 4px 0 var(--ink)}}@media (max-width:680px){.site-shell{width:min(calc(100% - 22px), var(--max-width))}.header-main{gap:14px;min-height:64px}.brand-en{display:none}.brand{font-size:20px}.brand-mark{width:31px;height:31px}.nav-link{padding:7px 8px;font-size:12px}.main{padding-top:20px}.prototype-note{font-size:12px}.hero-main{min-height:500px;padding:25px}.hero-main:after{width:150px;height:150px}.display-title{max-width:12ch;margin-top:38px;font-size:clamp(42px,14vw,62px)}.display-deck{font-size:16px}.edition-switch{width:100%}.edition-link{flex:1}.section{margin-top:48px}.section-head{flex-direction:column;align-items:flex-start}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.category-card{min-height:150px;padding:16px}.category-name{font-size:18px}.news-grid{grid-template-columns:1fr}.news-card{min-height:0}.page-hero{padding:26px 22px}.page-title{font-size:46px}.category-toolbar{flex-direction:column;align-items:flex-start}.article-header{padding:28px 22px}.article-title{font-size:42px}.article-content{padding:24px 20px}.insight-grid{grid-template-columns:1fr}.footer-inner{flex-direction:column;align-items:flex-start}.footer-note{text-align:left}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}