:root{--paper:#faf8f5;--paper-2:#f3efe8;--ink:#1b3a2e;--ink-2:#3c5247;--ink-3:#6f7d74;--red:#b03a2e;--red-soft:#b03a2e14;--line:#1b3a2e29;--line-soft:#1b3a2e17;--serif:"Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", serif;--sans:ui-sans-serif, -apple-system, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;--mono:ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;--wrap:1080px}*{box-sizing:border-box}html{scroll-behavior:smooth}html.js [data-reveal]{opacity:0;transition:opacity .7s ease var(--delay,0s), transform .7s ease var(--delay,0s);transform:translateY(14px)}html.js [data-reveal].in{opacity:1;transform:none}html.anim-fallback [data-reveal]{transition:none}body{background:var(--paper);color:var(--ink);font-family:var(--serif);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:16px;line-height:1.75}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}a{color:inherit}.site-nav{z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft);background:#faf8f5eb;position:sticky;top:0}.nav-inner{align-items:center;gap:28px;height:64px;display:flex}.brand{letter-spacing:.06em;align-items:center;gap:10px;font-size:18px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{border:1.5px solid var(--ink);justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;font-weight:700;display:inline-flex}.nav-links{font-size:14px;font-family:var(--sans);gap:26px;margin-left:auto;display:flex}.nav-links a{color:var(--ink-2);border-bottom:1px solid #0000;padding:4px 0;text-decoration:none}.nav-links a:hover{color:var(--ink)}.nav-links a[aria-current=page]{color:var(--red);border-bottom-color:var(--red)}.nav-cta{font-family:var(--sans);color:var(--paper);background:var(--ink);white-space:nowrap;border-radius:3px;padding:9px 18px;font-size:14px;font-weight:600;text-decoration:none}.nav-cta:hover{background:#12352a}.arrow{font-family:var(--sans)}.btn{font-family:var(--sans);cursor:pointer;border:1px solid #0000;border-radius:3px;align-items:center;gap:8px;padding:13px 26px;font-size:15px;font-weight:600;text-decoration:none;transition:transform .15s,background .15s,color .15s;display:inline-flex}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:#9c3126}.btn-outline{border-color:var(--ink);color:var(--ink);background:0 0}.btn-outline:hover{background:#1b3a2e0f}.link-btn{font-family:var(--sans);color:inherit;font-size:13px;font-weight:600}.hero{border-bottom:1px solid var(--line-soft);padding:84px 0 72px;position:relative;overflow:hidden}.hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:56px;display:grid}.kicker{font-family:var(--sans);letter-spacing:.28em;color:var(--red);font-size:12px;font-weight:700}.hero h1{letter-spacing:.02em;margin:18px 0 0;font-size:clamp(34px,5vw,52px);font-weight:700;line-height:1.28}.hero h1 .line{display:block}.mark{background:linear-gradient(#0000 62%,#b03a2e38 62%);padding:0 6px;position:relative}.hero-sub{color:var(--ink-2);max-width:34em;margin:22px 0 0;font-size:16.5px}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:30px;display:flex}.hero-proof{font-family:var(--sans);color:var(--ink-3);flex-wrap:wrap;gap:22px;margin-top:26px;font-size:13px;display:flex}.hero-proof i{background:var(--red);vertical-align:2px;border-radius:50%;width:6px;height:6px;margin-right:7px;display:inline-block}.hero-stage{position:relative}.hero-stamp{z-index:2;letter-spacing:.18em;color:var(--red);border:3px solid var(--red);background:#faf8f5b3;border-radius:4px;padding:8px 14px;font-size:26px;font-weight:700;position:absolute;top:-22px;right:-8px;transform:rotate(8deg);box-shadow:0 4px 18px #b03a2e24}.hero-card{border:1px solid var(--line);font-family:var(--sans);color:var(--ink-2);background:#fffdf9;padding:22px 24px 18px;font-size:13px;box-shadow:0 18px 50px #1b3a2e1a}.hc-top{color:var(--ink-3);justify-content:space-between;font-size:12px;display:flex}.hc-main{align-items:baseline;gap:16px;margin:16px 0 4px;display:flex}.hc-score{color:var(--ink);font-size:52px;font-weight:700;line-height:1}.hc-score small{color:var(--ink-3);margin-left:2px;font-size:15px;font-weight:500}.hc-label b{color:var(--red);letter-spacing:.1em;font-size:17px;display:block}.hc-label span{color:var(--ink-3);font-size:12px}.hc-bars{gap:7px;margin-top:14px;display:grid}.hc-bar{grid-template-columns:58px 1fr 32px;align-items:center;gap:10px;font-size:12.5px;display:grid}.hc-track{background:var(--paper-2);border:1px solid var(--line-soft);height:8px}.hc-track i{background:var(--ink);height:100%;display:block}.hc-bar[data-low] .hc-track i{background:var(--red)}.hc-bar em{text-align:right;color:var(--ink-3);font-style:normal}.hc-bar[data-low] em{color:var(--red)}.hc-issues{border-top:1px dashed var(--line);gap:6px;margin-top:14px;padding-top:12px;display:grid}.hc-issue{align-items:baseline;gap:10px;display:flex}.hc-issue b{color:var(--red);letter-spacing:.08em;font-size:11px}.hc-foot{color:var(--ink-3);justify-content:space-between;margin-top:14px;font-size:11.5px;display:flex}.hero-stage-note{font-family:var(--sans);color:var(--ink-3);text-align:center;margin-top:14px;font-size:12px}.section{border-bottom:1px solid var(--line-soft);padding:88px 0}.section-head{grid-template-columns:1.1fr .9fr;align-items:end;gap:48px;margin-bottom:46px;display:grid}.section-title{margin:14px 0 0;font-size:clamp(26px,3.4vw,36px);font-weight:700;line-height:1.35}.section-desc{color:var(--ink-2);margin:0;font-size:15.5px}.lede{color:var(--ink-2);font-size:16.5px}.site-footer{background:var(--paper);padding:60px 0 40px}.footer-grid{grid-template-columns:1.4fr .8fr .8fr;gap:40px;display:grid}.footer-brand{letter-spacing:.04em;font-size:20px;font-weight:700}.footer-brand span{font-family:var(--sans);letter-spacing:.3em;color:var(--ink-3);margin-left:8px;font-size:11px}.footer-note{color:var(--ink-2);max-width:26em;font-size:14px}.footer-col h4{font-family:var(--sans);letter-spacing:.24em;color:var(--ink-3);margin:6px 0 14px;font-size:12px;font-weight:700}.footer-col a,.footer-col p{font-family:var(--sans);color:var(--ink-2);margin:8px 0;font-size:13.5px;text-decoration:none;display:block}.footer-col a:hover{color:var(--red)}.footer-bottom{border-top:1px solid var(--line-soft);font-family:var(--sans);color:var(--ink-3);justify-content:space-between;gap:16px;margin-top:48px;padding-top:18px;font-size:12px;display:flex}@media (max-width:900px){.hero{padding:56px 0 52px}.hero-grid,.section-head,.footer-grid{grid-template-columns:1fr;gap:32px}.nav-links{display:none}.hero-stamp{top:-30px;right:6px}.section{padding:64px 0}}.pain-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.pain-card{border-top:2px solid var(--ink);padding:22px 4px 0}.pain-num{font-family:var(--sans);letter-spacing:.22em;color:var(--red);font-size:11px;font-weight:700}.pain-card h3{margin:14px 0 10px;font-size:19px;line-height:1.5}.pain-card p{color:var(--ink-2);margin:0;font-size:14.5px}.dims-layout{grid-template-columns:.9fr 1.1fr;align-items:start;gap:56px;display:grid}.dims-side .section-title{font-size:clamp(26px,3.2vw,34px)}.dims-note{background:var(--paper-2);border-left:3px solid var(--red);font-family:var(--sans);color:var(--ink-2);margin-top:18px;padding:18px 20px;font-size:13px;line-height:2}.dims-list{border-top:1px solid var(--line);gap:0;display:grid}.dim-row{border-bottom:1px solid var(--line-soft);grid-template-columns:56px 1fr;gap:18px;padding:22px 0;display:grid}.dim-index{font-family:var(--sans);color:var(--ink-3);font-size:22px;font-weight:700}.dim-top{justify-content:space-between;align-items:baseline;display:flex}.dim-name{font-size:17px;font-weight:700}.dim-name small{font-family:var(--sans);letter-spacing:.2em;color:var(--ink-3);margin-left:8px;font-size:10px;font-weight:600}.dim-weight{font-family:var(--sans);color:var(--red);font-size:16px;font-weight:700}.dim-weight small{letter-spacing:.18em;color:var(--ink-3);margin-left:6px;font-size:9px;font-weight:600}.dim-line{color:var(--ink-2);margin:8px 0 12px;font-size:14px}.dim-track{background:var(--paper-2);border:1px solid var(--line-soft);height:6px}.dim-track i{background:var(--ink);height:100%;display:block}.flow-grid{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.flow-step{border:1px solid var(--line);background:#fffdf9;padding:22px 20px 18px;position:relative}.flow-num{font-family:var(--sans);letter-spacing:.22em;color:var(--ink-3);font-size:11px;font-weight:700}.flow-step h3{margin:12px 0 8px;font-size:18px}.flow-step p{color:var(--ink-2);margin:0;font-size:13.5px}.flow-time{font-family:var(--sans);color:var(--red);border:1px solid #b03a2e66;border-radius:99px;margin-top:16px;padding:3px 10px;font-size:11px;font-weight:700;display:inline-block}.price-grid{grid-template-columns:repeat(3,1fr);align-items:stretch;gap:22px;display:grid}.price-card{border:1px solid var(--line);background:#fffdf9;flex-direction:column;padding:26px 24px;display:flex}.price-card.is-featured{border:2px solid var(--ink);position:relative;box-shadow:0 14px 40px #1b3a2e1a}.price-card.is-featured:before{content:"最受欢迎";background:var(--red);color:#fff;font-family:var(--sans);letter-spacing:.12em;padding:3px 12px;font-size:11px;font-weight:700;position:absolute;top:-12px;left:24px}.price-name{font-size:19px;font-weight:700}.price-note{font-family:var(--sans);color:var(--ink-3);margin-top:4px;font-size:12.5px}.price-amount{margin:18px 0 4px;font-size:40px;font-weight:700}.price-amount small{font-family:var(--sans);color:var(--ink-3);margin-left:4px;font-size:13px;font-weight:500}.price-desc{color:var(--ink-2);margin:6px 0 16px;font-size:13.5px}.price-list{font-family:var(--sans);margin:0 0 24px;padding:0;font-size:13.5px;list-style:none}.price-list li{border-top:1px dashed var(--line-soft);color:var(--ink-2);padding:7px 0 7px 20px;position:relative}.price-list li:before{content:"✓";color:var(--red);font-weight:700;position:absolute;left:0}.price-card .btn{justify-content:center;margin-top:auto}.api-strip{background:var(--ink);color:var(--paper);flex-wrap:wrap;align-items:center;gap:22px;margin-top:26px;padding:20px 26px;display:flex}.api-copy{min-width:260px;font-family:var(--sans);flex:1;font-size:13.5px;line-height:1.8}.api-copy b{color:#e8c8b8;letter-spacing:.2em;margin-right:6px}.api-strip strong{white-space:nowrap;font-size:22px}.api-strip .link-btn{white-space:nowrap;border-bottom:1px solid #faf8f580;padding-bottom:2px;text-decoration:none}.faq-list{border-top:1px solid var(--line);max-width:820px}.faq-item{border-bottom:1px solid var(--line-soft)}.faq-item summary{cursor:pointer;padding:20px 44px 20px 4px;font-size:16.5px;font-weight:700;list-style:none;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";font-family:var(--sans);color:var(--red);font-size:20px;transition:transform .2s;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.faq-item[open] summary:after{content:"−"}.faq-body{color:var(--ink-2);padding:0 4px 22px;font-size:14.5px}.faq-body p{max-width:46em;margin:0 0 10px}@media (max-width:900px){.pain-grid,.price-grid{grid-template-columns:1fr}.flow-grid{grid-template-columns:repeat(2,1fr)}.dims-layout{grid-template-columns:1fr;gap:36px}}@media (max-width:560px){.flow-grid{grid-template-columns:1fr}.hc-bar{grid-template-columns:52px 1fr 30px}}.desk{padding:56px 0 80px}.desk-head{margin-bottom:36px}.desk-head .section-title{margin-top:12px}.desk-grid{grid-template-columns:1fr 1fr;align-items:start;gap:28px;display:grid}.panel{border:1px solid var(--line);background:#fffdf9;padding:24px}.panel-title{font-family:var(--sans);letter-spacing:.22em;color:var(--ink-3);margin:0 0 14px;font-size:12px;font-weight:700}textarea.draft{resize:vertical;border:1px solid var(--line);width:100%;min-height:320px;font-family:var(--serif);color:var(--ink);background:repeating-linear-gradient(#0000,#0000 27px,#1b3a2e1a 27px 28px),#fffdf9;outline:none;padding:10px 14px;font-size:15.5px;line-height:28px}textarea.draft:focus{border-color:var(--ink)}.draft-meta{font-family:var(--sans);color:var(--ink-3);justify-content:space-between;margin-top:8px;font-size:12px;display:flex}.platform-row{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.platform-chip{font-family:var(--sans);border:1px solid var(--line);cursor:pointer;color:var(--ink-2);background:0 0;border-radius:3px;padding:8px 16px;font-size:13px}.platform-chip:hover{border-color:var(--ink);color:var(--ink)}.platform-chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}.desk-actions{align-items:center;gap:16px;margin-top:20px;display:flex}.desk-privacy{font-family:var(--sans);color:var(--ink-3);font-size:12px}.scanning{font-family:var(--sans);color:var(--red);font-size:13px}.result-empty{color:var(--ink-3);font-family:var(--sans);text-align:center;border:1px dashed var(--line);background:0 0;padding:40px 10px;font-size:13.5px}.verdict-line{flex-wrap:wrap;align-items:baseline;gap:14px;display:flex}.verdict-score{font-size:54px;font-weight:700;line-height:1}.verdict-score small{color:var(--ink-3);font-size:15px;font-weight:500}.verdict-tag{color:var(--red);border:2px solid var(--red);letter-spacing:.14em;border-radius:3px;padding:4px 12px;font-size:18px;font-weight:700;display:inline-block;transform:rotate(-2deg)}.verdict-tag.ok{color:var(--ink);border-color:var(--ink)}.verdict-sub{font-family:var(--sans);color:var(--ink-3);font-size:12.5px}.fp-line{font-family:var(--mono);color:var(--ink-3);margin-top:10px;font-size:12px}.dim-bars{gap:8px;margin-top:18px;display:grid}.dim-bar{font-family:var(--sans);grid-template-columns:64px 1fr 34px;align-items:center;gap:10px;font-size:13px;display:grid}.dim-bar em{text-align:right;color:var(--ink-3);font-style:normal}.dim-bar[data-low="1"] em,.dim-bar[data-low="2"] em{color:var(--red)}.dim-bar .hc-track i{transition:width .5s}.issues-list{border-top:1px dashed var(--line);font-family:var(--sans);gap:8px;margin:18px 0 0;padding:16px 0 0;font-size:13.5px;display:grid}.issue-row{align-items:baseline;gap:10px;display:flex}.issue-row b{color:var(--red);letter-spacing:.08em;font-size:11px}.issue-row em{color:var(--ink-3);font-size:12px;font-style:normal}.locked{border:1px solid var(--line);background:var(--paper-2);margin-top:22px;position:relative}.locked-veil{filter:blur();opacity:.45;-webkit-user-select:none;user-select:none;pointer-events:none;padding:22px}.locked-cta{border-top:1px dashed var(--line);flex-wrap:wrap;align-items:center;gap:12px;padding:18px 22px 22px;display:flex}.locked-cta .btn{padding:9px 18px;font-size:13.5px}.locked-note{font-family:var(--sans);color:var(--ink-3);font-size:12px}.unlocked-banner{font-family:var(--sans);color:var(--ink-2);background:var(--red-soft);border:1px solid #b03a2e40;margin-bottom:14px;padding:8px 12px;font-size:12px}.heat-list{font-family:var(--sans);margin:14px 0 0;padding:0;font-size:13.5px;list-style:none}.heat-row{border-bottom:1px solid var(--line-soft);grid-template-columns:30px 1fr 56px;align-items:baseline;gap:10px;padding:9px 10px;display:grid}.heat-row .n{color:var(--ink-3);font-size:11px;font-family:var(--mono)}.heat-row .len{text-align:right;color:var(--ink-3);font-size:11px}.heat-0{background:#1b3a2e08}.heat-1{background:#d69e2e1a}.heat-2{background:#c46a2021}.heat-3{background:#b03a2e24}.heat-row .flags{color:var(--red);margin-top:3px;font-size:11px;display:block}.top-ai{font-family:var(--sans);gap:10px;margin:14px 0 0;padding:0;font-size:13.5px;list-style:none;display:grid}.top-ai li{border-left:3px solid var(--red);background:#b03a2e0d;padding:10px 14px}.top-ai em{color:var(--red);margin-top:4px;font-size:12px;font-style:normal;display:block}.rewrites{gap:16px;margin-top:14px;display:grid}.rewrite-block{border:1px solid var(--line);background:#fffdf9;padding:16px 18px}.rewrite-block h4{margin:0 0 8px;font-size:14.5px}.rewrite-block h4 span{font-family:var(--sans);color:var(--ink-3);margin-left:8px;font-size:11px;font-weight:500}.rewrite-block p{color:var(--ink-2);margin:0;font-size:14px;line-height:1.9}.rewrite-actions{margin-top:10px}.mini-btn{font-family:var(--sans);border:1px solid var(--line);cursor:pointer;color:var(--ink-2);background:0 0;border-radius:3px;padding:5px 12px;font-size:12px}.mini-btn:hover{border-color:var(--ink);color:var(--ink)}.card-wrap{flex-wrap:wrap;align-items:flex-start;gap:16px;margin-top:14px;display:flex}.card-preview{font-family:var(--sans);border:1px solid var(--line);background:#fffdf9;width:340px;padding:20px 22px 14px;font-size:13px;box-shadow:0 10px 30px #1b3a2e1a}.share-row{flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;display:flex}.share-note{font-family:var(--sans);color:var(--ink-3);font-size:12px}.shared-banner{font-family:var(--sans);background:var(--paper-2);border:1px solid var(--line);margin-bottom:18px;padding:10px 14px;font-size:13px}.history-list{font-family:var(--sans);margin:12px 0 0;padding:0;font-size:13px;list-style:none}.history-list li{border-top:1px dashed var(--line-soft);align-items:baseline;gap:14px;padding:8px 0;display:flex}.history-list button{cursor:pointer;font-family:var(--mono);color:var(--ink);background:0 0;border:none;padding:0;font-size:12px;text-decoration:underline}.modal-mask{z-index:100;background:#1b3a2e73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--paper);border:2px solid var(--ink);max-width:420px;padding:26px;position:relative}.modal h3{margin:0 0 10px;font-size:18px}.modal p{color:var(--ink-2);margin:0 0 16px;font-size:14px}.modal-close{cursor:pointer;color:var(--ink-3);background:0 0;border:none;font-size:18px;position:absolute;top:10px;right:12px}.report-page{padding:56px 0 80px}.report-grid{grid-template-columns:380px 1fr;align-items:start;gap:28px;margin-top:8px;display:grid}.report-side{gap:18px;display:grid;position:sticky;top:84px}.report-card{border:1px solid var(--line);font-family:var(--sans);color:var(--ink-2);background:#fffdf9;padding:22px 24px 16px;font-size:13px;position:relative;box-shadow:0 16px 44px #1b3a2e1a}.report-card .hc-main .hc-score{color:var(--red)}.report-verify{font-family:var(--sans);color:var(--ink-3);border:1px dashed var(--line);background:var(--paper-2);padding:14px 16px;font-size:12px}.report-main{gap:26px;display:grid}.report-section{border:1px solid var(--line);background:#fffdf9;padding:24px 26px}.report-section>h3{margin:0 0 14px;font-size:18px}.report-section>h3 small{font-family:var(--sans);color:var(--ink-3);margin-left:10px;font-size:12px;font-weight:500}.sample-text p{margin:0;font-size:15px;line-height:2.1}.sample-text .sent{border-radius:2px;padding:2px 4px}.sent-num{font-family:var(--mono);color:var(--ink-3);margin-right:4px;font-size:11px}.explain{color:var(--ink-2);margin:0;padding-left:20px;font-size:14.5px}.explain li{margin:8px 0}.reason-list{font-family:var(--sans);gap:10px;margin:0;padding:0;font-size:13.5px;list-style:none;display:grid}.dev-page{padding:56px 0 80px}.dev-layout{grid-template-columns:200px 1fr;align-items:start;gap:40px;display:grid}.dev-toc{font-family:var(--sans);gap:8px;font-size:13px;display:grid;position:sticky;top:84px}.dev-toc a{color:var(--ink-3);border-left:2px solid #0000;padding-left:12px;text-decoration:none}.dev-toc a:hover{color:var(--ink);border-left-color:var(--ink)}.dev-body{gap:30px;max-width:760px;display:grid}.dev-body h2{margin:0;font-size:24px}.dev-body h3{margin:0 0 10px;font-size:17px}.dev-lead{color:var(--ink-2);max-width:40em;font-size:15.5px}.dev-section{border-top:1px solid var(--line);padding-top:26px}pre.code{color:#e7e3d8;font-family:var(--mono);background:#10231c;border-radius:3px;margin:0 0 14px;padding:18px 20px;font-size:12.5px;line-height:1.7;overflow-x:auto}code.inline{font-family:var(--mono);background:var(--paper-2);border:1px solid var(--line-soft);border-radius:2px;padding:1px 6px;font-size:.92em}table.dev-table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:13px}table.dev-table th,table.dev-table td{text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top;padding:9px 10px}table.dev-table th{letter-spacing:.14em;color:var(--ink-3);font-size:11.5px}table.dev-table code{font-family:var(--mono);font-size:12px}.dev-note{font-family:var(--sans);color:var(--ink-2);background:var(--paper-2);border-left:3px solid var(--red);padding:12px 16px;font-size:13px}@media (max-width:900px){.desk-grid,.report-grid,.dev-layout{grid-template-columns:1fr}.report-side{position:static}.dev-toc{display:none}}
