:root{
  --bg:#FBF2DC;--paper:#FFFDF6;--ink:#17150F;
  --purple:#A78BFA;--purple-deep:#7C5CFC;
  --pink:#FFC9DE;--blue:#A8D5FF;--yellow:#FFDE59;
  --green:#B4F0BC;--orange:#FFC078;--red:#FF8787;
  --teal:#8EECD8;--lavender:#DDD0FF;--coral:#FFD4C4;
  --border:2.5px solid var(--ink);--shadow:5px 5px 0 var(--ink);--shadow-lg:9px 9px 0 var(--ink);
  --r:18px;
  --display:'Archivo Black','Noto Sans SC',sans-serif;
  --body:'Space Grotesk','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--bg);background-image:radial-gradient(rgba(23,21,15,.10) 1.2px,transparent 1.2px);background-size:26px 26px;color:var(--ink);line-height:1.6;overflow-x:hidden}
::selection{background:var(--yellow);color:var(--ink)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit}
:focus-visible{outline:3px solid var(--purple-deep);outline-offset:3px;border-radius:6px}
.wrap{max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 按钮系统 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--body);font-weight:700;font-size:15px;padding:11px 22px;border:var(--border);border-radius:12px;background:var(--paper);color:var(--ink);box-shadow:4px 4px 0 var(--ink);transition:transform .15s,box-shadow .15s,background .15s;user-select:none;white-space:nowrap}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.btn:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}
.btn-primary{background:var(--purple-deep);color:#fff}
.btn-primary:hover{background:#6A48F0}
.btn-yellow{background:var(--yellow)}
.btn-green{background:var(--green)}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:9px;box-shadow:3px 3px 0 var(--ink)}
.btn-sm:hover{box-shadow:5px 5px 0 var(--ink)}
.btn-sm:active{box-shadow:0 0 0 var(--ink)}
.btn.ok{background:var(--green)!important;color:var(--ink)!important}
.btn-icon{width:38px;height:38px;padding:0;justify-content:center;border-radius:10px}

/* ===== 导航 ===== */
.nav{position:sticky;top:0;z-index:200;background:var(--bg);border-bottom:var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.02em;cursor:pointer}
.logo-mark{width:36px;height:36px;background:var(--ink);color:var(--yellow);border-radius:10px;display:grid;place-items:center;font-family:var(--display);font-size:19px;box-shadow:3px 3px 0 rgba(23,21,15,.25);transition:transform .2s}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.06)}
.logo .tld{color:var(--purple-deep)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a.nl{font-weight:700;font-size:15px;padding:8px 14px;border-radius:9px;transition:background .15s,transform .15s}
.nav-links a.nl:hover{background:var(--yellow);transform:translateY(-1px)}
.nav-cta{margin-left:10px}
@media(max-width:760px){.nav-links a.nl{display:none}}

/* ===== 页面切换 ===== */
.page{display:none}
.page.active{display:block;opacity:1;animation:pageIn .35s ease}
@keyframes pageIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ===== 落地页 Hero ===== */
.hero{padding:72px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.sticker{display:inline-flex;align-items:center;gap:8px;background:var(--pink);border:var(--border);border-radius:999px;padding:7px 16px;font-weight:700;font-size:14px;box-shadow:3px 3px 0 var(--ink);transform:rotate(-1.5deg)}
.hero h1{font-family:var(--display);font-weight:900;font-size:clamp(44px,6.4vw,84px);line-height:1.08;letter-spacing:-.01em;margin:26px 0 22px}
.hero h1 .hl{background-image:linear-gradient(180deg,transparent 58%,var(--yellow) 58%);padding:0 6px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.hero h1 .dot{color:var(--purple-deep)}
.hero-sub{font-size:18px;max-width:520px;color:#4A463A;font-weight:500}
.hero-sub b{color:var(--ink)}
.searchbar{display:flex;align-items:center;margin:30px 0 16px;max-width:540px;border:var(--border);border-radius:14px;background:var(--paper);box-shadow:var(--shadow);overflow:hidden;transition:box-shadow .2s,transform .2s}
.searchbar:focus-within{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--ink)}
.searchbar .s-icon{padding:0 4px 0 16px;display:flex}
.searchbar input{flex:1;border:0;background:transparent;padding:15px 12px;font-size:16px;font-weight:500;color:var(--ink);outline:none}
.searchbar input::placeholder{color:#9B9583}
.searchbar .s-go{border:0;border-left:var(--border);background:var(--yellow);font-weight:700;font-size:15px;padding:0 22px;height:100%;align-self:stretch;transition:background .15s}
.searchbar .s-go:hover{background:var(--orange)}
.kbd{font-family:var(--mono);font-size:11px;border:2px solid var(--ink);border-radius:5px;padding:1px 6px;background:var(--paper);margin-left:6px}
.qtags{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.qtags .lab{font-size:13px;font-weight:700;color:#7A7461}
.qtag{font-family:var(--mono);font-size:13px;font-weight:600;border:2px solid var(--ink);border-radius:8px;background:var(--paper);padding:5px 12px;transition:all .15s;box-shadow:2px 2px 0 var(--ink)}
.qtag:hover{background:var(--blue);transform:translate(-1px,-1px);box-shadow:3px 3px 0 var(--ink)}

/* 终端 */
.term-wrap{position:relative}
.term{background:var(--ink);border:var(--border);border-radius:var(--r);box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(1.6deg);transition:transform .3s}
.term:hover{transform:rotate(0) translateY(-4px)}
.term-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:2.5px solid #3A362B;background:#221F16}
.term-bar i{width:12px;height:12px;border-radius:50%;display:block}
.term-bar i:nth-child(1){background:#FF6B6B}.term-bar i:nth-child(2){background:var(--yellow)}.term-bar i:nth-child(3){background:var(--green)}
.term-bar .addr{margin-left:10px;font-family:var(--mono);font-size:12px;color:#8D8775;background:#17150F;border:1.5px solid #3A362B;border-radius:7px;padding:3px 12px}
.term-body{padding:20px 20px 24px;font-family:var(--mono);font-size:13.5px;min-height:246px;color:#EDE8D8}
.t-line{margin-bottom:6px;word-break:break-all}
.t-p{color:var(--yellow);font-weight:800}
.t-cmd{color:#fff}
.t-out{color:#7EE787;margin-bottom:14px}
.t-out .ms{color:#6B6555}
.t-caret{display:inline-block;width:9px;height:17px;background:var(--yellow);vertical-align:-3px;margin-left:2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.free-tag{position:absolute;top:-20px;right:-14px;background:var(--purple);border:var(--border);border-radius:12px;font-family:var(--display);font-size:15px;padding:8px 16px;box-shadow:4px 4px 0 var(--ink);transform:rotate(7deg);animation:bob 3.4s ease-in-out infinite}
@keyframes bob{0%,100%{transform:rotate(7deg) translateY(0)}50%{transform:rotate(7deg) translateY(-8px)}}
.spark{position:absolute;color:var(--ink);animation:spin 9s linear infinite}
.spark.s1{top:-34px;left:-26px}.spark.s2{bottom:-30px;right:34%;animation-duration:13s;animation-direction:reverse}
@keyframes spin{to{transform:rotate(360deg)}}

/* 跑马灯 */
.marquee{border-top:var(--border);border-bottom:var(--border);background:var(--yellow);overflow:hidden;padding:13px 0;transform:rotate(-.6deg) scale(1.01)}
.mq-track{display:flex;width:max-content;animation:mq 34s linear infinite}
.marquee:hover .mq-track{animation-play-state:paused}
.mq-track span{font-weight:700;font-size:16px;white-space:nowrap;padding:0 18px;display:flex;align-items:center;gap:18px}
.mq-track span::after{content:"✦";color:var(--purple-deep);font-size:14px}
@keyframes mq{to{transform:translateX(-50%)}}

/* ===== Bento 网格 ===== */
section{padding:78px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.sec-tag{font-family:var(--mono);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:8px;border:2px solid var(--ink);border-radius:999px;background:var(--paper);padding:5px 14px;margin-bottom:14px;box-shadow:2px 2px 0 var(--ink)}
.sec-tag i{width:9px;height:9px;border-radius:50%;background:var(--purple-deep);display:inline-block}
.sec-head h2{font-family:var(--display);font-weight:900;font-size:clamp(30px,4vw,48px);line-height:1.15;letter-spacing:-.01em}
.sec-head .side{font-size:15px;color:#6E6857;font-weight:500;max-width:320px}
.bento{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:168px;grid-auto-flow:dense;gap:18px}
.card{border:var(--border);border-radius:var(--r);background:var(--paper);box-shadow:var(--shadow);padding:18px;position:relative;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;cursor:pointer}
.card:hover{transform:translate(-3px,-3px);box-shadow:8px 8px 0 var(--ink)}
.c-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.c-ico{width:36px;height:36px;border:2.5px solid var(--ink);border-radius:10px;display:grid;place-items:center;flex:none;background:var(--paper);transition:transform .25s}
.card:hover .c-ico{transform:rotate(-8deg) scale(1.08)}
.c-head h3{font-size:16.5px;font-weight:700;letter-spacing:-.01em;line-height:1.2}
.c-head .en{font-family:var(--mono);font-size:11px;color:#8A8471;font-weight:600;display:block}
.badge{margin-left:auto;font-family:var(--mono);font-size:10.5px;font-weight:800;border:2px solid var(--ink);border-radius:7px;padding:2px 8px;background:var(--yellow);transform:rotate(2deg);flex:none}
.badge.hot{background:var(--red);color:#fff}
.badge.live{background:var(--green)}
.bg-purple{background:var(--purple)}.bg-pink{background:var(--pink)}.bg-blue{background:var(--blue)}.bg-yellow{background:var(--yellow)}.bg-green{background:var(--green)}.bg-orange{background:var(--orange)}.bg-red{background:var(--red)}.bg-teal{background:var(--teal)}.bg-lavender{background:var(--lavender)}.bg-coral{background:var(--coral)}.bg-ink{background:var(--ink);color:var(--paper)}
.s3{grid-column:span 3}.s4{grid-column:span 4}.s5{grid-column:span 5}.s7{grid-column:span 7}.s12{grid-column:span 12}
.r1{grid-row:span 1}.r2{grid-row:span 2}.r3{grid-row:span 3}
.card.hide{display:none}

/* 卡片内预览元素 */
.preview-box{font-family:var(--mono);font-size:11px;background:var(--ink);color:#EDE8D8;border-radius:10px;padding:8px 10px;overflow:hidden;flex:1;min-height:0;line-height:1.55}
.preview-box .j-key{color:#C4B5FD}.preview-box .j-str{color:#86EFAC}.preview-box .j-num{color:#FDBA74}
.pwd-preview{font-family:var(--mono);font-size:13px;font-weight:600;word-break:break-all;background:var(--paper);border:2.5px solid var(--ink);border-radius:10px;padding:9px 12px}
.ts-big{font-family:var(--mono);font-weight:800;font-size:clamp(18px,1.5vw,24px);letter-spacing:-.02em}
.ts-live{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:10px;font-weight:800;color:#7EE787;letter-spacing:.1em}
.ts-live i{width:7px;height:7px;border-radius:50%;background:#7EE787;animation:pulse 1.2s ease infinite}
@keyframes pulse{50%{opacity:.25}}
.uuid-preview{font-family:var(--mono);font-size:11px;font-weight:600;word-break:break-all;background:var(--paper);border:2.5px solid var(--ink);border-radius:10px;padding:8px 10px}
.rx-pat{font-family:var(--mono);font-size:11px;font-weight:700;background:var(--ink);color:var(--yellow);border-radius:8px;padding:5px 9px;display:inline-block;margin-bottom:6px}
.rx-sample{font-family:var(--mono);font-size:10.5px;line-height:1.6;color:#4A463A}
.rx-sample mark{background:var(--yellow);border:1.5px solid var(--ink);border-radius:4px;padding:0 3px;font-weight:700}
.pal-row{display:flex;gap:6px;flex:1;min-height:0}
.pal-sw{flex:1;border:2.5px solid var(--ink);border-radius:10px;min-height:48px;transition:transform .18s}
.pal-sw:hover{transform:translateY(-5px) rotate(-2deg)}
.more-card{background:var(--ink);color:var(--paper);justify-content:center}
.more-card h3{font-family:var(--display);font-size:19px;font-weight:900}
.more-card p{font-size:12.5px;color:#B5AF9D;font-weight:500}
.more-arrow{position:absolute;right:16px;bottom:14px;font-size:26px;transition:transform .25s;color:var(--yellow)}
.more-card:hover .more-arrow{transform:translate(4px,-4px)}
.stats{grid-column:span 12;display:grid;grid-template-columns:repeat(4,1fr);border:var(--border);border-radius:var(--r);background:var(--paper);box-shadow:var(--shadow);overflow:hidden}
.stat{padding:24px 26px;border-right:var(--border);transition:background .2s;display:flex;flex-direction:column;justify-content:center}
.stat:last-child{border-right:0}
.stat:hover{background:var(--yellow)}
.stat .num{font-family:var(--display);font-size:clamp(28px,3.4vw,44px);font-weight:900;line-height:1;display:flex;align-items:baseline;gap:2px}
.stat .num em{font-style:normal;color:var(--purple-deep);font-size:.6em}
.stat .cap{font-size:13.5px;font-weight:600;color:#6E6857;margin-top:8px}

/* 规格条 */
.spec{display:grid;grid-template-columns:repeat(4,1fr);border:var(--border);border-radius:var(--r);background:var(--paper);box-shadow:var(--shadow-lg);overflow:hidden}
.spec-cell{padding:28px 26px;border-right:var(--border);transition:background .2s}
.spec-cell:last-child{border-right:0}
.spec-cell:nth-child(1):hover{background:var(--pink)}.spec-cell:nth-child(2):hover{background:var(--blue)}.spec-cell:nth-child(3):hover{background:var(--green)}.spec-cell:nth-child(4):hover{background:var(--orange)}
.spec-ico{width:46px;height:46px;border:var(--border);border-radius:12px;display:grid;place-items:center;margin-bottom:16px;background:var(--paper);box-shadow:3px 3px 0 var(--ink);transition:transform .25s}
.spec-cell:hover .spec-ico{transform:rotate(-8deg) translate(-2px,-2px)}
.spec-cell h3{font-size:17px;font-weight:700;margin-bottom:6px}
.spec-cell p{font-size:13.5px;color:#5C5748;line-height:1.55}

/* CTA */
.cta{margin-top:84px;border:var(--border);border-radius:26px;background:var(--purple);box-shadow:12px 12px 0 var(--ink);padding:64px 56px;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(23,21,15,.16) 1.4px,transparent 1.4px);background-size:22px 22px;pointer-events:none}
.cta-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center;position:relative}
.cta h2{font-family:var(--display);font-weight:900;font-size:clamp(30px,4.4vw,52px);line-height:1.15}
.cta h2 .u{background:var(--paper);border:2.5px solid var(--ink);border-radius:12px;padding:0 12px;display:inline-block;transform:rotate(-1.5deg);box-shadow:4px 4px 0 var(--ink)}
.cta p{margin:18px 0 26px;font-size:17px;font-weight:500;max-width:460px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.cta .hint{font-family:var(--mono);font-size:12.5px;font-weight:600}
.bookmark-demo{background:var(--paper);border:var(--border);border-radius:16px;box-shadow:6px 6px 0 var(--ink);padding:14px;transform:rotate(2deg);transition:transform .3s}
.bookmark-demo:hover{transform:rotate(0)}
.bm-bar{display:flex;gap:8px;align-items:center}
.bm-item{display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;border:2px solid var(--ink);border-radius:8px;padding:6px 12px;background:#fff;white-space:nowrap}
.bm-item.me{background:var(--yellow);font-weight:700;animation:bob 3s ease-in-out infinite}
.bm-item .fav{width:14px;height:14px;border-radius:4px;background:var(--ink);color:var(--yellow);display:grid;place-items:center;font-size:9px;font-family:var(--display)}
.bm-note{font-family:var(--mono);font-size:11px;color:#8A8471;margin-top:10px;text-align:center;font-weight:600}

/* Footer */
footer{margin-top:96px;background:var(--ink);color:var(--paper);border-top:var(--border)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px}
.foot-word{font-family:var(--display);font-size:34px;font-weight:900;line-height:1}
.foot-word .tld{color:var(--purple)}
.foot-desc{color:#A8A290;font-size:14px;margin-top:14px;max-width:300px;line-height:1.7}
.foot-col h4{font-family:var(--mono);font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--yellow);margin-bottom:16px}
.foot-col a{display:block;font-size:14.5px;color:#D8D2BE;padding:5px 0;transition:color .15s,transform .15s}
.foot-col a:hover{color:var(--yellow);transform:translateX(4px)}
.foot-bottom{border-top:2.5px solid #3A362B;padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:12.5px;color:#8D8775}
.foot-bottom .hearts{color:var(--pink)}

/* ===== 工具详情页通用 ===== */
#page-tool.active{display:flex;flex-direction:column;min-height:100vh}
#page-tool .tool-page{flex:1}
.tool-page{padding:32px 0 80px}
#page-tool .wrap{max-width:1440px}
.tool-breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:28px;font-size:14px;font-weight:600;color:#7A7461}
.tool-breadcrumb a{color:var(--purple-deep);transition:color .15s}
.tool-breadcrumb a:hover{color:var(--ink)}
.tool-breadcrumb .sep{color:#C5BFA8}
.tool-header{display:flex;align-items:flex-start;gap:18px;margin-bottom:32px;flex-wrap:wrap}
.tool-header .tool-ico{width:56px;height:56px;border:var(--border);border-radius:14px;display:grid;place-items:center;background:var(--paper);box-shadow:4px 4px 0 var(--ink);flex:none}
.tool-header .tool-meta h1{font-family:var(--display);font-size:clamp(26px,3.5vw,40px);font-weight:900;line-height:1.2}
.tool-header .tool-meta p{font-size:15px;color:#5C5748;margin-top:4px;max-width:560px}
.tool-header .tool-meta .tool-url{font-family:var(--mono);font-size:13px;color:var(--purple-deep);font-weight:700;margin-top:6px;display:inline-block;border:2px solid var(--purple-deep);border-radius:7px;padding:3px 10px}
.tool-workspace{display:grid;grid-template-columns:auto 320px;gap:24px;align-items:start}
.tool-main{border:var(--border);border-radius:var(--r);background:var(--paper);box-shadow:var(--shadow);padding:18px;min-height:480px;display:flex;flex-direction:column;position:relative;overflow:hidden;min-width:860px}
.tool-main::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--tool-accent,var(--purple));border-radius:var(--r) var(--r) 0 0}
.tool-page{background-image:radial-gradient(color-mix(in srgb,var(--tool-accent,var(--purple)) 18%,transparent) 1px,transparent 1px);background-size:28px 28px}
.tool-sidebar{display:flex;flex-direction:column;gap:16px}
.sidebar-card{border:var(--border);border-radius:14px;background:var(--paper);box-shadow:4px 4px 0 var(--ink);padding:18px;border-left:5px solid var(--tool-accent,var(--purple))}
.sidebar-card h4{font-size:14px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.sidebar-card p,.sidebar-card li{font-size:13px;color:#5C5748;line-height:1.6}
.sidebar-card ul{list-style:none;padding:0}
.sidebar-card li{padding:4px 0;display:flex;align-items:center;gap:8px}
.sidebar-card li::before{content:"→";color:var(--purple-deep);font-weight:700}
.sidebar-card .kbd{margin-left:auto}

/* 工具通用输入输出 */
.tool-textarea{width:100%;min-height:220px;border:var(--border);border-radius:12px;background:var(--ink);color:#EDE8D8;font-family:var(--mono);font-size:14px;line-height:1.65;padding:16px;resize:vertical;outline:none;transition:box-shadow .2s}
.tool-textarea:focus{box-shadow:0 0 0 3px var(--purple)}
.tool-textarea::placeholder{color:#6B6555}
.tool-output{width:100%;min-height:160px;border:var(--border);border-radius:12px;background:var(--ink);color:#EDE8D8;font-family:var(--mono);font-size:14px;line-height:1.65;padding:16px;overflow:auto;white-space:pre-wrap;word-break:break-all}
.tool-output::-webkit-scrollbar{width:8px;height:8px}
.tool-output::-webkit-scrollbar-thumb{background:#4A463A;border-radius:4px}
.tool-actions{display:flex;gap:10px;margin:16px 0;flex-wrap:wrap;align-items:center}
.tool-label{font-family:var(--mono);font-size:11px;font-weight:800;letter-spacing:.08em;color:#8A8471;margin-bottom:8px}
.tool-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tool-input{border:var(--border);border-radius:10px;padding:10px 14px;font-family:var(--mono);font-size:14px;background:var(--paper);outline:none;transition:box-shadow .2s}
.tool-input:focus{box-shadow:0 0 0 3px var(--purple)}
.tool-select{border:var(--border);border-radius:10px;padding:10px 14px;font-family:var(--mono);font-size:13px;background:var(--paper);outline:none;cursor:pointer}
.tool-toggle{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;cursor:pointer}
.tool-toggle input{accent-color:var(--purple-deep);width:16px;height:16px}
.strength-bar{height:8px;border-radius:4px;border:2px solid var(--ink);overflow:hidden;background:var(--paper)}
.strength-fill{height:100%;transition:width .3s,background .3s;border-radius:2px}
.result-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:16px}
.result-item{border:var(--border);border-radius:10px;padding:12px;background:var(--paper);cursor:pointer;transition:transform .15s,box-shadow .15s}
.result-item:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--ink)}
.result-item .ri-label{font-family:var(--mono);font-size:10px;font-weight:800;color:#8A8471;letter-spacing:.06em;margin-bottom:4px}
.result-item .ri-value{font-family:var(--mono);font-size:13px;font-weight:600;word-break:break-all}
.color-preview{width:100%;height:80px;border:var(--border);border-radius:12px;margin-bottom:16px;transition:background .2s}
.match-list{max-height:200px;overflow:auto;border:var(--border);border-radius:10px;background:var(--paper)}
.match-item{padding:8px 12px;border-bottom:1.5px solid #E8E2D0;font-family:var(--mono);font-size:12px;display:flex;justify-content:space-between}
.match-item:last-child{border-bottom:0}
.match-item .mi-idx{color:#8A8471;font-weight:800}
.match-item mark{background:var(--yellow);border-radius:3px;padding:0 2px}

/* 计算器 */
.calc-display{background:var(--ink);border:var(--border);border-radius:14px;padding:18px 20px;margin-bottom:16px;min-height:90px;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-end;overflow:hidden}
.calc-expr{font-family:var(--mono);font-size:14px;color:#8D8775;min-height:20px;word-break:break-all;text-align:right;width:100%}
.calc-result{font-family:var(--mono);font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--paper);letter-spacing:-.02em;word-break:break-all;text-align:right;width:100%;cursor:pointer;transition:color .15s}
.calc-result:hover{color:var(--yellow)}
.calc-result.copied{color:var(--green)}
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.calc-btn{border:var(--border);border-radius:10px;padding:14px 8px;font-family:var(--mono);font-size:16px;font-weight:700;background:var(--paper);box-shadow:3px 3px 0 var(--ink);transition:transform .1s,box-shadow .1s,background .1s;cursor:pointer;text-align:center;user-select:none}
.calc-btn:hover{transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--ink)}
.calc-btn:active{transform:translate(2px,2px);box-shadow:0 0 0 var(--ink)}
.calc-btn.op{background:var(--yellow)}
.calc-btn.eq{background:var(--purple-deep);color:#fff}
.calc-btn.fn{background:var(--blue);font-size:13px}
.calc-btn.clear{background:var(--red);color:#fff}
.calc-btn.wide{grid-column:span 2}
.calc-history{border:var(--border);border-radius:14px;background:var(--paper);box-shadow:4px 4px 0 var(--ink);overflow:hidden;max-height:360px;display:flex;flex-direction:column}
.calc-history-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:var(--border);background:var(--bg)}
.calc-history-head h4{font-size:13px;font-weight:700;margin:0}
.calc-history-list{overflow:auto;flex:1;padding:8px 0}
.calc-history-item{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;font-family:var(--mono);font-size:12.5px;cursor:pointer;transition:background .12s;border-bottom:1.5px solid #F0EAD8}
.calc-history-item:hover{background:var(--yellow)}
.calc-history-item:last-child{border-bottom:0}
.calc-history-item .chi-expr{color:#6E6857;max-width:55%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.calc-history-item .chi-res{font-weight:800;color:var(--ink)}
.calc-history-empty{padding:24px 16px;text-align:center;color:#8A8471;font-size:13px}

/* Toast */
.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,80px);background:var(--ink);color:var(--paper);border:2.5px solid var(--paper);border-radius:12px;padding:12px 22px;font-weight:700;font-size:14.5px;box-shadow:5px 5px 0 rgba(23,21,15,.35);z-index:999;opacity:0;transition:transform .3s cubic-bezier(.2,1.4,.4,1),opacity .3s;pointer-events:none;font-family:var(--mono)}
.toast.show{transform:translate(-50%,0);opacity:1}

/* 滚动浮现 — 纯 CSS 动画，不依赖 JS 控制可见性 */
.reveal{animation:revealUp .6s ease backwards}
.reveal:nth-child(1){animation-delay:.05s}
.reveal:nth-child(2){animation-delay:.1s}
.reveal:nth-child(3){animation-delay:.15s}
.reveal:nth-child(4){animation-delay:.2s}
.reveal:nth-child(5){animation-delay:.25s}
.reveal:nth-child(n+6){animation-delay:.3s}
@keyframes revealUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}

/* 响应式 */
@media(max-width:1180px){
  .bento{grid-template-columns:repeat(6,1fr);grid-auto-rows:auto}
  .s3,.s4,.s5,.s7{grid-column:span 3}.r2,.r3{grid-row:auto}
  .card{min-height:200px}
  .stats,.s12{grid-column:span 6}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:var(--border)}
  .spec{grid-template-columns:repeat(2,1fr)}
  .spec-cell:nth-child(2){border-right:0}
  .spec-cell:nth-child(1),.spec-cell:nth-child(2){border-bottom:var(--border)}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .term{transform:none}
  .cta-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .tool-workspace{grid-template-columns:1fr}
}
@media(max-width:700px){
  .bento{grid-template-columns:1fr}
  .s3,.s4,.s5,.s7,.stats,.s12{grid-column:span 1}
  .spec{grid-template-columns:1fr}
  .spec-cell{border-right:0;border-bottom:var(--border)}
  .spec-cell:last-child{border-bottom:0}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:var(--border)}
  .stat:last-child{border-bottom:0}
  .cta{padding:44px 26px}
  .hero{padding-top:48px}
  .foot-grid{grid-template-columns:1fr}
  .free-tag{right:6px}
  .tool-main{padding:18px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}