:root{
  --ink:#13231d;
  --ink-2:#263b32;
  --muted:#64746c;
  --paper:#f4f7f5;
  --surface:#fff;
  --surface-2:#f8faf9;
  --line:#dde5e0;
  --line-strong:#c8d3cc;
  --green:#0f766e;
  --green-2:#0b5f59;
  --green-soft:#e8f5f1;
  --blue:#2563eb;
  --gold:#b7791f;
  --gold-soft:#fff8e8;
  --danger:#b42318;
  --danger-soft:#fff1f0;
  --navy:#10231e;
  --shadow-sm:0 1px 2px rgba(15,35,29,.04),0 4px 14px rgba(15,35,29,.04);
  --shadow-md:0 12px 32px rgba(15,35,29,.08);
  --radius-sm:9px;
  --radius:14px;
  --radius-lg:20px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{color:inherit}
img{max-width:100%}
::selection{color:#fff;background:var(--green)}
:focus-visible{outline:3px solid rgba(37,99,235,.24);outline-offset:2px}

/* Global navigation */
.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:30px;min-height:68px;padding:0 clamp(22px,5vw,72px);border-bottom:1px solid rgba(19,35,29,.08);background:rgba(255,255,255,.9);backdrop-filter:blur(18px)}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;font-size:19px;font-weight:760;letter-spacing:-.02em}
.brand img{width:32px;height:32px;border-radius:9px;box-shadow:0 5px 12px rgba(37,99,235,.18)}
.site-header nav{display:flex;align-items:center;gap:26px;color:#4f6258;font-size:14px;font-weight:550}
.site-header nav a{position:relative;padding:22px 0}
.site-header nav a:after{position:absolute;right:0;bottom:15px;left:0;height:2px;border-radius:2px;background:var(--green);content:"";transform:scaleX(0);transition:transform .18s ease}
.site-header nav a:hover{color:var(--ink)}
.site-header nav a:hover:after{transform:scaleX(1)}

/* Controls */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border:1px solid transparent;border-radius:10px;cursor:pointer;font-size:14px;font-weight:700;line-height:1;transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{color:#fff;background:var(--green);box-shadow:0 7px 18px rgba(15,118,110,.17)}
.btn-primary:hover{background:var(--green-2);box-shadow:0 9px 22px rgba(15,118,110,.22)}
.btn-secondary,.btn-quiet{border-color:var(--line-strong);background:#fff}
.btn-secondary:hover,.btn-quiet:hover{border-color:#8eb3a5;color:var(--green);background:#f8fbfa}
.btn-danger{color:#fff;background:var(--danger)}
.btn-danger:hover{background:#912018}
.btn:disabled{cursor:not-allowed;opacity:.55;transform:none;box-shadow:none}
.full{width:100%}

/* Landing */
.hero{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(330px,.72fr);gap:clamp(48px,7vw,112px);align-items:center;min-height:620px;padding:92px clamp(28px,7vw,108px);overflow:hidden;background:linear-gradient(145deg,#f8fbf9 0,#edf5f1 62%,#e7f1fb 100%)}
.hero:before,.hero:after{position:absolute;border-radius:50%;content:"";filter:blur(1px);pointer-events:none}
.hero:before{top:-210px;right:-120px;width:520px;height:520px;background:rgba(37,99,235,.07)}
.hero:after{bottom:-230px;left:28%;width:430px;height:430px;background:rgba(15,118,110,.08)}
.hero-copy,.hero-panel{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:7px;margin-bottom:16px;padding:6px 10px;border:1px solid #c9e2d8;border-radius:99px;color:var(--green);background:rgba(255,255,255,.72);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{width:6px;height:6px;border-radius:50%;background:#20a67a;content:""}
.hero h1{max-width:790px;margin:0;color:#10251d;font-size:clamp(43px,5vw,68px);font-weight:760;line-height:1.12;letter-spacing:-.055em}
.hero h1 em{color:var(--green);font-style:normal}
.hero-copy>p{max-width:700px;margin:25px 0;color:#53655c;font-size:18px;line-height:1.75}
.hero-actions{display:flex;gap:11px;margin-top:30px}
.hero .micro{margin-top:18px;color:#77867e;font-size:13px}
.hero-panel{padding:30px;border:1px solid rgba(255,255,255,.9);border-radius:var(--radius-lg);background:rgba(255,255,255,.78);box-shadow:var(--shadow-md);backdrop-filter:blur(16px)}
.hero-panel>span{color:var(--muted);font-size:12px;font-weight:650}
.hero-panel strong{display:block;margin:7px 0 18px;color:#16342a;font-size:26px;letter-spacing:-.02em}
.hero-panel ul{display:grid;gap:11px;margin:0;padding:0;list-style:none}
.hero-panel li{position:relative;padding-left:25px;color:#40544a;font-size:14px}
.hero-panel li:before{position:absolute;top:6px;left:0;display:grid;width:16px;height:16px;place-items:center;border-radius:50%;color:var(--green);background:var(--green-soft);content:"✓";font-size:10px;font-weight:900}
.section{padding:88px clamp(28px,7vw,108px)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2,.disclosure h2{margin:0 0 12px;color:#11261e;font-size:clamp(31px,3.6vw,46px);font-weight:750;line-height:1.22;letter-spacing:-.04em}
.section-head p{margin:0;color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tool-card{position:relative;display:flex;min-height:292px;flex-direction:column;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.tool-card:before{position:absolute;top:0;right:0;left:0;height:3px;background:linear-gradient(90deg,var(--green),#58b6a2);content:"";opacity:0;transition:opacity .2s ease}
.tool-card:hover{border-color:#a7c4b8;box-shadow:var(--shadow-md);transform:translateY(-4px)}
.tool-card:hover:before{opacity:1}
.tool-card.paid:after{position:absolute;top:20px;right:20px;padding:4px 8px;border-radius:99px;color:#80500c;background:#fff1d5;content:"付费成果";font-size:10px;font-weight:800}
.tool-no{display:grid;width:34px;height:34px;place-items:center;border-radius:10px;color:var(--green);background:var(--green-soft);font-size:12px;font-weight:800}
.tool-card h3{margin:22px 0 10px;font-size:21px;line-height:1.3;letter-spacing:-.02em}
.tool-card p{flex:1;margin:0;color:var(--muted);font-size:14px}
.tool-card b{margin-top:20px;color:#21483b;font-size:14px}
.tool-card i{margin-top:10px;color:var(--green);font-style:normal;font-size:13px;font-weight:700}
.contrast{color:#fff;background:linear-gradient(140deg,#0d241d,#102e26 60%,#11352d)}
.contrast .section-head h2{color:#fff}
.contrast .eyebrow{border-color:rgba(128,220,186,.2);color:#9fe2ca;background:rgba(255,255,255,.04)}
.value-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.value-grid article{min-height:238px;padding:26px;border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);background:rgba(255,255,255,.045)}
.value-grid b{color:#8dd7bd;font-size:13px}
.value-grid h3{margin:38px 0 10px;font-size:20px}
.value-grid p{margin:0;color:#bfd0c9;font-size:14px}
.price-table{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
.price-table>div{display:grid;grid-template-columns:1.05fr 2fr 1fr;align-items:center;gap:24px;padding:22px 25px;border-bottom:1px solid var(--line)}
.price-table>div:last-child{border-bottom:0}
.price-table strong{font-size:17px}
.price-table span{color:var(--muted);font-size:14px}
.price-table b{text-align:right;color:var(--green);font-size:17px}
.disclosure{margin:0 clamp(28px,7vw,108px) 88px;padding:42px;border:1px solid #bcd8cc;border-radius:var(--radius-lg);background:linear-gradient(135deg,#eaf6f1,#f5f9f7)}
.disclosure p{max-width:1000px;color:#40564b}
footer{display:grid;grid-template-columns:1fr auto;gap:20px;padding:34px clamp(28px,7vw,108px);color:#b9cbc4;background:#0d211a}
footer div{display:flex;gap:18px}
footer strong{color:#fff}
footer a:hover{color:#fff}
footer small{grid-column:1/-1;color:#7f958c}

/* Product pages */
.tool-shell{min-height:calc(100vh - 68px);padding:48px clamp(22px,6vw,84px) 72px}
.tool-title{max-width:1180px;margin:0 auto 26px}
.tool-title .eyebrow{margin-bottom:12px}
.tool-title h1{max-width:820px;margin:0;color:#132820;font-size:clamp(33px,4vw,44px);font-weight:750;line-height:1.2;letter-spacing:-.04em}
.tool-title p{max-width:800px;margin:10px 0 0;color:var(--muted)}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;max-width:1180px;margin:auto;align-items:start}
.tool-main,.tool-aside,.task-card,.account-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
.tool-main{padding:28px}
.tool-aside{position:sticky;top:88px;padding:25px}
.tool-aside h3{margin:0 0 14px;font-size:17px}
.tool-aside ul{display:grid;gap:8px;margin:0;padding:0;list-style:none;color:var(--muted);font-size:14px}
.tool-aside li{position:relative;padding-left:18px}
.tool-aside li:before{position:absolute;top:10px;left:1px;width:5px;height:5px;border-radius:50%;background:#75ad98;content:""}
.tool-aside .price{display:block;margin:24px 0 8px;color:var(--green);font-size:23px;font-weight:780;letter-spacing:-.02em}
.field{display:block;margin:0 0 19px}
.field>span{display:block;margin-bottom:7px;color:var(--ink-2);font-size:14px;font-weight:700}
.field small,.field-help{display:block;margin-top:6px;color:var(--muted);font-size:12px}
.field input,.field textarea,.field select{width:100%;padding:11px 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);color:var(--ink);background:#fff;outline:0;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}
.field textarea{min-height:112px;resize:vertical}
.field input:hover,.field textarea:hover,.field select:hover{border-color:#a8b8af}
.field input:focus,.field textarea:focus,.field select:focus{border-color:#5a9f8b;box-shadow:0 0 0 3px rgba(15,118,110,.1);background:#fff}
.form-actions{display:flex;align-items:center;gap:10px;margin-top:24px}
.notice{padding:13px 14px;border:1px solid #ead3a8;border-left:3px solid #c18b34;border-radius:var(--radius-sm);color:#684d21;background:var(--gold-soft);font-size:13px}
.flash{margin:10px 0;color:var(--danger);font-size:13px}
.status-box{display:none}
.status-box.show{display:block;margin-top:20px;padding:19px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-2)}
.status-box h3{margin:0 0 10px;font-size:19px}
.status-box h4{margin:20px 0 8px}
.status-line{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.status-line:last-of-type{border-bottom:0}
.status-line code{overflow-wrap:anywhere}
.preflight-list{padding-left:20px;color:#40534a}
.download-list{display:grid;gap:8px;margin-top:15px}
.download-list a{padding:11px 13px;border:1px solid var(--line);border-radius:9px;color:var(--green);background:#fff;font-size:14px;font-weight:650}
.download-list a:hover{border-color:#9dc0b2;background:#f8fbfa}
.revision-box{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.revision-box textarea{width:100%;min-height:100px;padding:11px;border:1px solid var(--line-strong);border-radius:9px;resize:vertical}
.loading{opacity:.58;pointer-events:none}

/* Task and account pages */
.task-list{display:grid;gap:13px;max-width:1060px;margin:auto}
.task-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;padding:20px 22px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.task-card:hover{border-color:#b5c9bf;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.task-card h3{margin:0;font-size:17px}
.task-card p{margin:5px 0 0;color:var(--muted);font-size:13px}
.badge{display:inline-flex;align-items:center;padding:4px 9px;border-radius:99px;color:var(--green);background:var(--green-soft);font-size:11px;font-weight:800}
.empty{padding:64px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);background:rgba(255,255,255,.5);text-align:center}
.account-card{padding:24px}
.account-card h2{margin:0 0 8px;font-size:20px}
.account-card>p{margin-top:0;color:var(--muted)}
.account-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}

/* Authentication */
.modal-backdrop{position:fixed;inset:0;z-index:100;display:none;place-items:center;padding:20px;background:rgba(7,20,15,.62);backdrop-filter:blur(6px)}
.modal-backdrop.open{display:grid}
.login-modal{width:min(420px,100%);padding:27px;border:1px solid rgba(255,255,255,.5);border-radius:18px;background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.25)}
.login-modal h2{margin:0 0 4px;font-size:25px}
.login-modal>p{margin:0 0 20px;color:var(--muted);font-size:14px}
.login-modal .close{float:right;width:34px;height:34px;border:0;border-radius:8px;background:#f1f4f2;cursor:pointer;font-size:20px}
.inline{display:flex;gap:8px}
.inline input{min-width:0;flex:1}
.captcha{height:44px;max-width:145px;border:1px solid var(--line);border-radius:8px;cursor:pointer}
.agree{display:flex;align-items:flex-start;gap:8px;margin:13px 0;color:#52635a;font-size:13px}
.agree input{margin-top:4px}
.divider{display:flex;align-items:center;gap:12px;margin:15px 0;color:var(--muted);font-size:11px}
.divider:before,.divider:after{height:1px;flex:1;background:var(--line);content:""}

/* Human confirmation */
.agent-confirm-card{margin:16px 0;padding:15px;border:1px solid #c8ddd4;border-radius:12px;background:#f6fbf9}
.agent-confirm-card h4{margin:0 0 9px;color:#14574f}
.agent-fact-list{display:grid;gap:2px}
.agent-fact-list>div{display:grid;grid-template-columns:minmax(145px,27%) 1fr;gap:4px 12px;padding:10px 0;border-top:1px solid #e0e9e4}
.agent-fact-list>div:first-child{border-top:0}
.agent-fact-list b{color:#263f35}
.agent-fact-list span{overflow-wrap:anywhere}
.agent-fact-list small{grid-column:2;color:#718079}
.agent-decision-card{margin-top:11px;padding:13px;border:1px solid #e8d3a9;border-left:3px solid #bf8730;border-radius:9px;background:#fffaf0}
.agent-decision-card h5{margin:0 0 7px;font-size:15px}
.agent-decision-card p{margin:5px 0;font-size:13px}
.decision-selected{display:inline-block;margin:5px 0;padding:3px 8px;border-radius:99px;color:#72500f;background:#f5e7c7;font-size:11px;font-weight:800}
.decision-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:9px}
.decision-actions .btn{min-height:36px;padding:0 11px;font-size:12px}
.agent-confirmation{padding:0 24px 17px;border-top:1px solid var(--line);background:#f7faf8}
.agent-confirmation .agent-confirm-card{margin:17px 0 0}
.agent-confirmation h3{margin:0 0 10px;color:var(--green)}

@media(max-width:980px){
  .hero{grid-template-columns:1fr;min-height:auto;padding-top:70px}
  .hero-panel{max-width:650px}
  .tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .value-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tool-layout{grid-template-columns:1fr}
  .tool-aside{position:static;order:2}
}
@media(max-width:760px){
  .site-header{flex-wrap:wrap;gap:0;min-height:62px;padding:8px 16px}
  .site-header .brand{margin-bottom:5px}
  .site-header nav{order:2;width:100%;justify-content:space-around;gap:7px;border-top:1px solid var(--line);font-size:12px}
  .site-header nav a{padding:7px 3px 2px}
  .site-header nav a:after{bottom:-1px}
  .hero{padding:56px 18px}
  .hero h1{font-size:39px}
  .hero-actions{align-items:stretch;flex-direction:column}
  .section{padding:66px 18px}
  .tool-grid,.value-grid{grid-template-columns:1fr}
  .tool-card{min-height:250px}
  .price-table>div{grid-template-columns:1fr;gap:5px;padding:20px}
  .price-table b{text-align:left}
  .disclosure{margin:0 18px 66px;padding:27px}
  footer{grid-template-columns:1fr;padding:30px 18px}
  footer div{flex-wrap:wrap}
  .tool-shell{padding:35px 16px 58px}
  .tool-title h1{font-size:32px}
  .tool-main,.tool-aside{padding:20px}
  .form-actions{align-items:stretch;flex-direction:column}
  .form-actions .btn{width:100%}
  .task-card{grid-template-columns:1fr;padding:18px}
  .account-grid{grid-template-columns:1fr}
  .agent-fact-list>div{grid-template-columns:1fr}
  .agent-fact-list small{grid-column:1}
  .decision-actions .btn{width:100%}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}