:root{--navy:#172946;--blue:#315eaa;--blue-2:#4672bf;--blue-soft:#eaf1fb;--muted:#718097;--text:#172946;--border:#e4e9f1;--bg:#f5f7fb;--card:#ffffff;--label-bg:#f2f5fa;--amber:#a47b40;--amber-bg:#fff4db;--green:#3f7a5a;--green-bg:#e8f3ec;--red:#a24a48;--red-bg:#fbecea;--radius:14px;--radius-sm:10px;--shadow:0 1px 2px rgba(23,41,70,.05),0 6px 24px rgba(23,41,70,.06);--font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Segoe UI",system-ui,sans-serif;font-family:var(--font);color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.7;-webkit-text-size-adjust:100%}h1,h2,h3,h4,p{margin:0}a{color:var(--blue)}img{max-width:100%}button,input,textarea,select{font:inherit;color:inherit}:focus-visible{outline:3px solid #93b7ed;outline-offset:3px}.container{max-width:1120px;margin:0 auto;padding:0 20px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 18px;border-radius:10px;border:1px solid #d9e1ec;background:#fff;color:var(--navy);font-weight:600;cursor:pointer;text-decoration:none;transition:filter .15s,background .15s}.btn:hover:not(:disabled){filter:brightness(.97)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--navy);border-color:var(--navy);color:#fff}.btn.blue{background:var(--blue);border-color:var(--blue);color:#fff}.btn.ghost{background:transparent;border-color:transparent;color:var(--blue)}.btn.small{min-height:34px;padding:0 12px;font-size:13px}.input{width:100%;min-height:44px;padding:10px 12px;border:1px solid #d9e1ec;border-radius:10px;background:#fff}.input:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px #315eaa26}.muted{color:var(--muted)}.small{font-size:13px}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--blue-soft);color:var(--blue)}.badge.green{background:var(--green-bg);color:var(--green)}.badge.amber{background:var(--amber-bg);color:var(--amber)}.badge.red{background:var(--red-bg);color:var(--red)}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%);z-index:1000;max-width:min(92vw,520px);padding:12px 18px;border-radius:12px;background:var(--navy);color:#fff;box-shadow:var(--shadow);font-size:14px}.toast.error{background:var(--red)}.site-header{background:#fff;border-bottom:1px solid var(--border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy)}.brand strong{font-size:16px;letter-spacing:.5px}.brand-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff}.todo{display:inline-block;padding:0 6px;border-radius:6px;background:var(--amber-bg);color:var(--amber);font-size:.85em}.disclaimer{margin-top:28px;padding:14px 16px;border-radius:12px;background:var(--label-bg);color:var(--muted);font-size:13px}@media(max-width:640px){body{font-size:15px}.container{padding:0 14px}.site-header .container{height:60px}}html{scroll-behavior:smooth;scroll-padding-top:20px}body{min-height:100vh;display:flex;flex-direction:column}main{flex:1 0 auto}[hidden]{display:none!important}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.ic{display:inline-flex;line-height:0;flex-shrink:0}.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px}.skip-link:focus{top:12px}.toast{pointer-events:none;text-align:center;line-height:1.6}.site-header{position:relative;z-index:30}.site-header .container{height:auto;min-height:68px;flex-wrap:wrap;row-gap:0}.brand-icon svg{width:22px;height:22px}.brand-text{display:flex;flex-direction:column;line-height:1.3}.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.5px;font-weight:400}.site-nav{display:flex;align-items:center;gap:2px}.site-nav a{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:9px;color:#42536d;text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap}.site-nav a:hover{background:var(--bg);color:var(--navy)}.site-nav a[aria-current=page]{color:var(--blue);background:var(--blue-soft)}.site-nav a.nav-cta{border:1px solid #d9e1ec;margin-left:8px;color:var(--navy)}.site-nav a.nav-cta[aria-current=page]{border-color:#c4d5ef}@media(max-width:720px){.site-header .container{min-height:0;padding-top:10px;gap:4px}.brand-icon{width:34px;height:34px;border-radius:9px}.brand-text small{display:none}.site-nav{width:100%;justify-content:space-between;overflow-x:auto;padding:2px 0 8px;scrollbar-width:none}.site-nav::-webkit-scrollbar{display:none}.site-nav a{padding:6px 10px;font-size:13.5px}.site-nav a.nav-cta{margin-left:0}}.site-footer{margin-top:64px;border-top:1px solid var(--border);background:#fff}.site-footer .container{padding-top:26px;padding-bottom:30px;display:flex;justify-content:space-between;align-items:flex-start;gap:14px 28px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);line-height:1.8}.site-footer p{max-width:640px}.site-footer .footer-contact{margin-top:6px;color:var(--navy);font-weight:600}.site-footer nav{display:flex;gap:6px 18px;flex-wrap:wrap}.site-footer a{color:#5d6d85;text-decoration:none}.site-footer a:hover{color:var(--blue)}.page-head{padding:34px 0 22px}.page-head .eyebrow{font-size:12px;letter-spacing:2px;color:#7d8ca3;font-weight:700}.page-head h1{font-size:28px;line-height:1.4;margin-top:6px;letter-spacing:.5px}.page-head p{color:var(--muted);margin-top:8px;max-width:720px}.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:34px 0 14px}.section-title h2{font-size:20px;letter-spacing:.3px}.section-title p{color:var(--muted);font-size:13px}.btn .ic{margin-left:-2px}.btn.block{width:100%}.btn.danger{color:var(--red);border-color:#ecd0cd;background:#fff}.btn.danger.solid{background:var(--red);border-color:var(--red);color:#fff}.btn.soft{background:var(--blue-soft);border-color:#d5e2f5;color:var(--blue)}.btn.link{min-height:auto;padding:4px 2px;border:0;background:none;color:var(--blue);font-weight:600}.link-btn{border:0;background:none;padding:4px 0;color:var(--blue);font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:4px;text-decoration:none;font-size:14px}.link-btn:hover{text-decoration:underline}.chip{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;background:var(--label-bg);color:#4f5f78;font-size:12.5px;line-height:1.6}.empty{padding:36px 20px;text-align:center;color:var(--muted);border:1px dashed #d6dfeb;border-radius:var(--radius);background:#fbfcfe}.empty strong{display:block;color:var(--navy);font-size:16px;margin-bottom:6px}.empty .btn{margin-top:14px}.skeleton{background:linear-gradient(90deg,#eef2f7,#f6f8fb,#eef2f7);background-size:200% 100%;animation:sk 1.2s infinite linear;border-radius:12px}@keyframes sk{to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){.skeleton{animation:none}html{scroll-behavior:auto}}.notice{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:var(--blue-soft);color:#35507c;font-size:13.5px;line-height:1.7}.notice .ic{margin-top:2px}.notice.amber{background:var(--amber-bg);color:#7b5a28}.notice.red{background:var(--red-bg);color:var(--red)}.notice.green{background:var(--green-bg);color:var(--green)}.auth-form{display:flex;flex-direction:column;gap:6px}.field-label{font-size:13px;font-weight:600;color:#3d4e67;margin-top:6px}.field-label:first-child{margin-top:0}.inline-field{display:flex;gap:8px}.inline-field .input{flex:1;min-width:0}.key-input{font-family:ui-monospace,Cascadia Mono,Consolas,Menlo,monospace;letter-spacing:1.5px;font-size:16px;text-transform:uppercase}.key-input::placeholder{letter-spacing:1.5px;color:#b3bdcb}.form-error{color:var(--red);font-size:13px;line-height:1.6;min-height:0}.form-error:empty{display:none}.pw-wrap{position:relative}.pw-wrap .input{padding-right:46px}.pw-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:38px;height:38px;border:0;background:none;color:var(--muted);border-radius:8px;cursor:pointer;display:grid;place-items:center}.pw-toggle[aria-pressed=true]{color:var(--blue)}.login-form .btn{margin-top:12px;min-height:46px}.hint{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.7}.seg{display:flex;gap:4px;padding:4px;background:var(--bg);border:1px solid var(--border);border-radius:12px;margin-bottom:14px}.seg-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;border:0;border-radius:9px;background:transparent;color:#5b6b83;font-weight:600;font-size:14px;cursor:pointer}.seg-btn[aria-selected=true]{background:#fff;color:var(--navy);box-shadow:0 1px 3px #1729461a}@media(max-width:640px){.input{font-size:16px}.section-title{flex-direction:column;align-items:flex-start;gap:2px;margin:28px 0 12px}}dialog.sheet{border:0;padding:0;border-radius:18px;width:min(760px,94vw);max-height:88vh;box-shadow:0 20px 60px #17294640;color:var(--text);background:#fff;overflow:hidden}dialog.sheet[open]{display:flex;flex-direction:column}dialog.sheet::backdrop{background:#17294673}.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}.sheet-head h2{font-size:18px}.sheet-close{width:40px;height:40px;border:0;border-radius:10px;background:var(--bg);color:var(--navy);display:grid;place-items:center;cursor:pointer;flex-shrink:0}.sheet-body{padding:18px 22px 26px;overflow-y:auto;-webkit-overflow-scrolling:touch}.sheet-foot{padding:12px 20px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;background:#fbfcfe}@media(max-width:640px){dialog.sheet{width:100vw;max-width:100vw;max-height:92vh;margin:auto 0 0;border-radius:18px 18px 0 0}.sheet-body{padding:16px 16px 24px}}.prose{--measure:44em;font-size:16.5px;line-height:1.9;color:#24364f;overflow-wrap:break-word;word-break:normal;text-align:justify;text-justify:inter-ideograph}.prose>:first-child{margin-top:0}.prose p,.prose ul,.prose ol,.prose blockquote,.prose pre,.prose .table-wrap,.prose aside,.prose dl,.prose figure{margin:0 0 1em}.prose h1{font-size:1.6em;line-height:1.4;color:var(--navy);margin:0 0 .8em;letter-spacing:.5px;text-align:left}.prose h2{font-size:1.3em;line-height:1.5;color:var(--navy);margin:2.1em 0 .8em;padding-bottom:.4em;border-bottom:1px solid var(--border);text-align:left;scroll-margin-top:84px}.prose h3{font-size:1.12em;line-height:1.55;color:var(--navy);margin:1.7em 0 .6em;text-align:left;scroll-margin-top:84px}.prose h3:before{content:"";display:inline-block;width:4px;height:.95em;border-radius:2px;background:#7d9fd1;margin-right:.5em;vertical-align:-.1em}.prose h4,.prose h5,.prose h6{font-size:1em;color:var(--navy);margin:1.4em 0 .4em;text-align:left}.prose strong{color:var(--navy);font-weight:650}.prose ul,.prose ol{padding-left:1.5em}.prose li{margin:.25em 0}.prose li>ul,.prose li>ol{margin:.25em 0}.prose li::marker{color:#7d8da6}.prose a{color:var(--blue);text-underline-offset:2px;word-break:break-all}.prose .plain-link{color:inherit}.prose blockquote{padding:.7em 1.1em;border-left:3px solid #b5c8e6;background:#f5f8fd;color:#46587a;border-radius:0 10px 10px 0}.prose blockquote>:last-child{margin-bottom:0}.prose hr{border:0;border-top:1px solid var(--border);margin:2.2em 0}.prose code{font-family:ui-monospace,Cascadia Mono,Consolas,SFMono-Regular,Menlo,monospace;font-size:.86em;background:#eef2f8;color:#1f3a66;padding:.12em .38em;border-radius:5px;word-break:break-word}.prose pre{background:#13213a;color:#e2e8f2;padding:14px 16px;border-radius:12px;overflow-x:auto;-webkit-overflow-scrolling:touch;font-size:13.5px;line-height:1.7;text-align:left;tab-size:4}.prose pre code{background:none;padding:0;color:inherit;font-size:inherit;word-break:normal;white-space:pre}.prose .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:10px;background:#fff}.prose table{border-collapse:collapse;min-width:100%;font-size:14px;line-height:1.65;text-align:left}.prose th,.prose td{border-bottom:1px solid var(--border);padding:9px 12px;vertical-align:top;min-width:5.5em}.prose th+th,.prose td+td{border-left:1px solid #eef1f6}.prose tr:last-child td{border-bottom:0}.prose thead th{background:var(--label-bg);color:#3d4e67;font-weight:600;white-space:nowrap}.prose tbody tr:nth-child(2n) td{background:#fbfcfe}.prose img{max-width:100%;height:auto;border-radius:8px}.prose .todo{font-size:.82em;vertical-align:.08em;cursor:help;white-space:nowrap}.prose .disclaimer{margin:2em 0 0;padding:14px 16px;border-radius:12px;background:var(--label-bg);color:var(--muted);font-size:13px;line-height:1.8;text-align:left}.prose .disclaimer>:last-child{margin-bottom:0}.prose .disclaimer p{margin:0}@media(max-width:640px){.prose{font-size:16px;line-height:1.85;text-align:left}.prose h1{font-size:1.45em}.prose h2{font-size:1.22em;margin-top:1.8em}.prose pre{font-size:12.5px;border-radius:10px;margin-left:-2px;margin-right:-2px}.prose table{font-size:13.5px}}.hero{background:linear-gradient(180deg,#fff,#f7f9fd);border-bottom:1px solid var(--border)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;align-items:center;padding-top:56px;padding-bottom:52px}.eyebrow{font-size:12px;letter-spacing:2.5px;color:#7d8ca3;font-weight:700}.hero h1{font-size:38px;line-height:1.35;letter-spacing:1px;margin:12px 0 14px;font-weight:700}.hero .lead{font-size:16px;color:#55667f;max-width:560px;line-height:1.85}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.hero-actions .btn{min-height:46px;padding:0 22px;font-size:15px}.trust{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;color:#4c5d77;font-size:14px}.trust li{display:flex;align-items:center;gap:10px}.tick{width:18px;height:18px;border-radius:50%;background:var(--green-bg);position:relative;flex-shrink:0}.tick:after{content:"";position:absolute;left:6px;top:3.5px;width:4px;height:8px;border:solid var(--green);border-width:0 2px 2px 0;transform:rotate(45deg)}.author{padding:26px 26px 22px;background:var(--navy);border-color:var(--navy);color:#fff;position:relative;overflow:hidden}.author:after{content:"";position:absolute;right:-40px;top:-60px;width:180px;height:180px;border-radius:50%;border:1px solid rgba(255,255,255,.08);pointer-events:none}.author-tag{font-size:12px;letter-spacing:2px;color:#a9bad3;font-weight:700}.author-text{margin-top:12px;font-size:16px;line-height:1.95;color:#eef3fb}.author-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}.author-foot span{font-size:12px;padding:3px 10px;border-radius:999px;background:#ffffff14;color:#c9d6ea}.entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}.entry{display:flex;align-items:center;gap:14px;padding:18px;text-decoration:none;color:var(--navy);transition:border-color .15s,transform .15s}.entry:hover{border-color:#c7d6ec;transform:translateY(-1px)}.entry-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--blue-soft);color:var(--blue);flex-shrink:0}.entry-body{display:flex;flex-direction:column;gap:2px;min-width:0}.entry-body strong{font-size:16px}.entry-body span{font-size:13px;color:var(--muted);line-height:1.6}.entry-go{margin-left:auto;font-size:24px;color:#a6b3c6;line-height:1}.services .section-title{margin-top:48px}.svc-group{padding:22px 22px 18px}.svc-group+.svc-row,.svc-row{margin-top:16px}.svc-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:start}.svc-group-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:14px}.svc-num{font-family:Georgia,Times New Roman,serif;font-size:22px;color:#9db1cf;line-height:1.2;letter-spacing:1px}.svc-group-head h3{font-size:18px;letter-spacing:.3px}.svc-group-head p{font-size:13px;color:var(--muted);margin-top:2px}.svc-list{list-style:none;margin:0;padding:0}.svc-list li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1px solid #eef1f6}.svc-list.two-col{display:grid;grid-template-columns:1fr 1fr;column-gap:36px}.svc-list.two-col li:nth-child(2){border-top:1px solid #eef1f6}.svc-main{display:flex;flex-direction:column;min-width:0}.svc-main strong{font-size:15px;font-weight:600}.svc-main span{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:1px}.svc-side{display:flex;flex-direction:column;align-items:flex-end;gap:0;flex-shrink:0;text-align:right}.svc-side .link-btn{font-size:13px;padding:2px 0}.price{display:inline-flex;align-items:baseline;gap:2px;white-space:nowrap;color:var(--navy)}.price b{font-size:17px;font-weight:700;letter-spacing:.2px}.price small{font-size:12px;color:var(--muted);font-weight:400}.price .tbd{font-size:14px;color:#5c6d86;font-weight:600}.plans{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:4px 0 8px}.plan{border:1px solid var(--border);border-radius:14px;padding:18px 18px 12px;background:#fbfcfe;display:flex;flex-direction:column}.plan.featured{background:linear-gradient(180deg,#f2f6fd,#fbfcfe);border-color:#c9d8ef;position:relative}.plan.featured:before{content:"推荐";position:absolute;top:-10px;right:16px;font-size:12px;font-weight:700;padding:1px 10px;border-radius:999px;background:var(--blue);color:#fff}.plan-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}.plan h4{font-size:16px}.plan .price b{font-size:22px}.plan ul{margin:10px 0 6px;padding-left:1.15em;font-size:13.5px;color:#4b5c75;line-height:1.75}.plan li::marker{color:#9db1cf}.plan .link-btn{margin-top:auto;align-self:flex-start;font-size:13.5px}.group-cta{margin-top:12px}.steps{list-style:none;margin:0;padding:8px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}.steps li{display:flex;gap:12px;padding:16px}.step-n{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;font-size:13px;font-weight:700;flex-shrink:0}.steps strong{font-size:15px}.steps p{font-size:13px;color:var(--muted);margin-top:3px;line-height:1.7}.steps-tip{margin-top:12px;font-size:13.5px;color:#55667f}.rules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.rule{padding:18px}.rule strong{font-size:15px;display:flex;align-items:center;gap:8px}.rule strong:before{content:"";width:4px;height:15px;border-radius:2px;background:#7d9fd1}.rule p{font-size:13px;color:var(--muted);margin-top:6px;line-height:1.75}.sheet-body>h1:first-child{display:none}.sheet-body.prose{font-size:15px}@media(max-width:980px){.hero-grid{grid-template-columns:1fr;gap:26px;padding-top:40px;padding-bottom:36px}.svc-row{grid-template-columns:1fr 1fr}.svc-row .svc-group:first-child{grid-column:1/-1}.entries{grid-template-columns:1fr}.rules,.steps{grid-template-columns:1fr 1fr}}@media(max-width:640px){.br-wide{display:none}.hero-grid{padding-top:28px;padding-bottom:28px}.hero h1{font-size:28px;letter-spacing:.5px;margin:8px 0 10px}.hero .lead{font-size:15px}.hero-actions{margin-top:20px}.hero-actions .btn{flex:1;padding:0 12px}.trust{font-size:13.5px;margin-top:20px}.author{padding:20px}.author-text{font-size:15px}.entries{gap:10px;margin-top:20px}.entry{padding:14px}.entry-icon{width:40px;height:40px}.services .section-title{margin-top:36px}.section-title{flex-direction:column;align-items:flex-start;gap:2px}.svc-group{padding:18px 16px 12px}.svc-row{grid-template-columns:1fr;gap:14px}.plans{grid-template-columns:1fr;gap:16px;margin-top:8px}.svc-list.two-col{grid-template-columns:1fr}.svc-list.two-col li:nth-child(2){border-top:1px solid #eef1f6}.svc-main strong{font-size:15px}.steps,.rules{grid-template-columns:1fr}.steps li{padding:12px 10px}.rules{gap:10px}.rule{padding:16px}}
