:root{--ink: #172019;--muted: #657164;--line: rgba(23, 32, 25, .12);--paper: #fffaf0;--paper-strong: #fffdf7;--mint: #c8f0d2;--leaf: #1f7a4f;--clay: #d9643a;--gold: #f0b84a;--shadow: 0 24px 70px rgba(45, 62, 42, .16);font-family:"Noto Serif SC","Source Han Serif SC",Microsoft YaHei,serif;color:var(--ink);background:#f3eddc}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 10% 10%,rgba(200,240,210,.85),transparent 26rem),radial-gradient(circle at 90% 0%,rgba(240,184,74,.45),transparent 25rem),linear-gradient(135deg,#f4edd9,#f7f3e6 54%,#e8f2df)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}textarea,input,select{width:100%;border:1px solid var(--line);border-radius:18px;background:#fffdf7c7;color:var(--ink);outline:none;padding:14px 16px;transition:border-color .2s ease,box-shadow .2s ease}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;font-weight:850}textarea:focus,input:focus,select:focus{border-color:#1f7a4f80;box-shadow:0 0 0 5px #1f7a4f1f}textarea{min-height:260px;resize:vertical;line-height:1.75}pre{white-space:pre-wrap;word-break:break-word;font-family:Cascadia Code,SFMono-Regular,Consolas,monospace}.app-shell{position:relative;min-height:100vh;overflow-x:hidden}.ambient{position:fixed;z-index:-1;filter:blur(6px);border-radius:999px}.ambient-one{width:18rem;height:18rem;left:-6rem;top:12rem;background:#d9643a2e}.ambient-two{width:24rem;height:24rem;right:-9rem;bottom:4rem;background:#1f7a4f29}.app-header{position:sticky;top:14px;z-index:20;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;width:min(1180px,calc(100% - 32px));margin:14px auto 0;padding:12px;border:1px solid rgba(23,32,25,.1);border-radius:28px;background:#fffdf7d1;box-shadow:0 12px 40px #2d3e2a1f;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-link,.nav-link,.header-user{color:inherit;text-decoration:none}.brand-link{display:inline-flex;align-items:center;gap:10px;font-weight:900}.brand-mark{display:block;width:52px;height:52px;object-fit:contain;flex:0 0 auto}.brand-text{white-space:nowrap}.nav-links{display:flex;justify-content:center;gap:6px}.mobile-menu-button,.mobile-auth-action,.nav-links .mobile-auth-action{display:none}.nav-link{display:inline-flex;align-items:center;gap:7px;padding:10px 14px;border-radius:16px;color:var(--muted);transition:background .2s ease,color .2s ease}.nav-link.active,.nav-link:hover{background:#e1f5dc;color:var(--leaf)}.header-action,.primary-button,.secondary-button,.ghost-button,.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:16px;min-height:44px;padding:0 18px;font-weight:800}.header-action,.primary-button{background:var(--ink);color:var(--paper);box-shadow:0 14px 28px #1720192e}.secondary-button{border:1px solid var(--line);background:#fffdf7cc;color:var(--ink)}.ghost-button{background:transparent;color:var(--muted)}.danger{color:#b4432b}.icon-button{width:42px;min-height:42px;padding:0;background:#1720190f}.header-user{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:16px;background:#1f7a4f1a;color:var(--leaf);font-weight:800}.app-main{width:min(1180px,calc(100% - 32px));margin:26px auto 64px}.app-footer{display:flex;align-items:center;justify-content:center;gap:10px;width:min(1180px,calc(100% - 32px));margin:-34px auto 34px;color:var(--muted);font-weight:700}.contact-link{color:var(--leaf);text-decoration:none;border-bottom:2px solid rgba(31,122,79,.25)}.contact-note{color:var(--muted);font-size:.92rem;line-height:1.7}.hero-panel,.page-title,.builder-card,.control-card,.editor-card,.result-card,.checkout-card,.price-card,.history-card,.profile-card,.account-empty{border:1px solid rgba(23,32,25,.1);border-radius:32px;background:#fffdf7c7;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.hero-panel{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;padding:clamp(20px,3vw,32px);overflow:hidden}.compact-hero{min-height:auto}h1,h2,h3,p{margin-top:0}h1{max-width:860px;margin-bottom:0;font-size:clamp(1.9rem,3vw,3.1rem);line-height:1.08;letter-spacing:-.045em}h2{margin-bottom:0;font-size:clamp(1.35rem,2.2vw,2rem);letter-spacing:-.035em}h3{margin-bottom:12px}.hero-copy,.page-title p,.muted,.dialog-copy{color:var(--muted);line-height:1.8}.hero-stats{display:grid;gap:4px;min-width:132px;padding:16px 18px;border-radius:22px;background:var(--mint)}.hero-stats small{color:#356347}.hero-stats strong{font-size:2.25rem;line-height:1}.workspace-grid,.compose-grid,.purchase-layout,.profile-grid{display:grid;gap:18px;margin-top:0}.workspace-grid{grid-template-columns:minmax(0,1fr) 340px;align-items:stretch}.workspace-grid>.builder-card,.workspace-grid>.control-card{height:100%}.compose-grid{grid-template-columns:minmax(0,1fr);margin-top:28px}.purchase-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start}.profile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wide{grid-column:1 / -1}.builder-card,.control-card,.editor-card,.result-card,.checkout-card,.profile-card,.account-empty{padding:24px}.workspace-grid>.builder-card,.workspace-grid>.control-card{display:flex;flex-direction:column;padding:22px 24px}.control-card,.checkout-card{position:sticky;top:108px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.compact{margin-bottom:14px}.scenario-dropdowns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));flex:1;gap:10px}.scenario-select{display:grid;align-content:center;gap:6px;min-width:0;padding:10px;border:1px solid rgba(23,32,25,.1);border-radius:18px;background:#fffdf794}.scenario-select span{color:var(--muted);font-size:.86rem;font-weight:900}.scenario-select select,.scenario-select input{min-height:44px;border-radius:12px;padding:9px 38px 9px 11px}.scenario-select select{background-color:#fffaf0eb;background-image:linear-gradient(45deg,transparent 50%,var(--leaf) 50%),linear-gradient(135deg,var(--leaf) 50%,transparent 50%);background-position:calc(100% - 22px) 52%,calc(100% - 15px) 52%;background-size:7px 7px,7px 7px;background-repeat:no-repeat;box-shadow:inset 0 1px #ffffffbf}.scenario-select input{padding-right:11px;background-color:#fffaf0eb;box-shadow:inset 0 1px #ffffffbf}.scenario-current{display:inline-flex;align-items:center;gap:7px;margin:12px 0 0;color:var(--muted);font-weight:850}.field{display:grid;gap:7px;margin-bottom:0}.control-card{gap:12px}.field span{color:var(--muted);font-weight:800}.style-picker{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.style-option{min-height:66px;display:grid;align-content:center;gap:4px;padding:12px;border:1px solid rgba(23,32,25,.1);border-radius:16px;background:linear-gradient(145deg,#fffdf7f2,#f5efdeb8),var(--paper-strong);color:var(--ink);text-align:left;box-shadow:inset 0 1px #fffc;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease,transform .18s ease}.style-option:hover{border-color:#1f7a4f3d;transform:translateY(-1px)}.style-option.active{border-color:#1f7a4f75;background:radial-gradient(circle at top right,rgba(240,184,74,.32),transparent 46%),linear-gradient(145deg,#e2f4dffa,#fffaebeb);box-shadow:0 14px 30px #1f7a4f21}.style-option strong{font-size:.96rem}.style-option small{color:var(--muted);font-size:.76rem;line-height:1.35}.field-help{color:var(--muted);font-size:.82rem;line-height:1.5}.generate-button,.full{width:100%}.editor-meta,.generate-actions{display:flex;align-items:center;gap:12px}.editor-meta{justify-content:space-between;margin:10px 0 12px;color:var(--muted);font-size:.92rem;font-weight:800}.inline-toggle{display:inline-flex;align-items:center;gap:8px;color:var(--ink)}.inline-toggle input{width:auto;accent-color:var(--leaf)}.generate-actions{align-items:stretch}.stop-button{min-width:108px}.cost-note{margin:10px 0 0;color:var(--muted);font-size:.92rem;line-height:1.6;text-align:center}.output-box{min-height:350px;margin:0;padding:20px;border-radius:24px;background:#172019;color:#f6f0dc;line-height:1.8}.empty-state{display:grid;min-height:180px;place-items:center;border:1px dashed rgba(23,32,25,.14);border-radius:24px;color:var(--muted);text-align:center;padding:24px}.page-title{padding:clamp(18px,2.4vw,28px)}.page-title h1{font-size:clamp(1.8rem,2.8vw,2.7rem)}.pricing-main{min-width:0}.current-plan-card{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px;padding:20px 24px;border:1px solid rgba(31,122,79,.18);border-radius:28px;background:linear-gradient(135deg,#e2f4dfe6,#fffdf7e0),var(--paper-strong);box-shadow:var(--shadow)}.current-plan-card span{display:block;color:var(--muted);font-weight:800}.current-plan-card strong{display:block;margin-top:4px;font-size:1.45rem}.current-plan-card p{margin:6px 0 0;color:var(--muted)}.current-plan-card svg{flex:0 0 auto;color:var(--leaf)}.pricing-message{margin:18px 0 0}.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.price-card{position:relative;padding:24px}.price-card.hot{border-color:#d9643a59;background:linear-gradient(180deg,#fffdf7f2,#ffefd5db)}.price-card strong{display:block;margin:14px 0;font-size:2.5rem}.package-label,.hot-badge{color:var(--clay);font-weight:900}.hot-badge{position:absolute;right:18px;top:18px;border-radius:999px;background:#d9643a1f;padding:6px 10px}.spacing-top{margin-top:32px}.pay-box{display:flex;gap:12px;margin-top:18px;padding:16px;border-radius:22px;background:#e2f4df}.pay-link{word-break:break-all}.payment-dialog{position:relative;width:min(420px,100%);border:1px solid rgba(23,32,25,.1);border-radius:30px;background:var(--paper-strong);box-shadow:var(--shadow);padding:28px}.payment-summary{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:18px 0;padding:16px;border-radius:20px;background:#1720190f}.payment-summary span{color:var(--muted);font-weight:800}.payment-summary strong{font-size:1.45rem}.qr-panel{display:grid;place-items:center;min-height:300px;border:1px dashed rgba(23,32,25,.16);border-radius:24px;background:#fffdf7}.qr-image{width:min(280px,100%);height:auto;border-radius:12px}.payment-success-panel{display:grid;place-items:center;min-height:300px;padding:26px;border-radius:24px;background:#e2f4df;color:var(--leaf);text-align:center}.payment-success-panel strong{margin-top:12px;font-size:1.6rem}.payment-success-panel p{margin:8px 0 0;color:#356347;line-height:1.7}.payment-status{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px;color:var(--clay);font-weight:900}.payment-status.paid{color:var(--leaf)}.order-number{margin:12px 0 0;color:var(--muted);font-size:.9rem;text-align:center;word-break:break-all}.history-list{display:grid;gap:16px;margin-top:0}.history-card{padding:24px}.history-card h2{margin:12px 0}.history-card pre{max-height:360px;overflow:auto;padding:18px;border-radius:22px;background:#1720190f;line-height:1.75}.history-meta,.card-actions,.order-row,.quota-grid{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.history-meta span,.order-row em{border-radius:999px;background:#1f7a4f1a;color:var(--leaf);padding:6px 10px;font-style:normal;font-weight:800}.account-empty{display:grid;justify-items:center;gap:12px;margin-top:0;padding:42px;text-align:center}.profile-email{font-size:1.4rem;font-weight:900}.quota-grid{align-items:stretch}.quota-grid div{flex:1;min-width:150px;padding:18px;border-radius:22px;background:#1720190f}.quota-grid span{display:block;color:var(--muted)}.quota-grid strong{font-size:2.6rem}.order-row{justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line)}.order-main{display:grid;gap:5px;min-width:min(100%,360px)}.order-main span{color:var(--muted);font-size:.92rem;word-break:break-all}.order-side{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin-left:auto}.order-pay-button{min-height:38px;padding-inline:13px;border-radius:14px}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:18px;background:#17201957;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.login-dialog{position:relative;width:min(440px,100%);border:1px solid rgba(23,32,25,.1);border-radius:30px;background:var(--paper-strong);box-shadow:var(--shadow);padding:28px}.dialog-close{position:absolute;top:14px;right:14px}.dialog-title{display:flex;align-items:center;gap:10px}.code-row{display:grid;grid-template-columns:minmax(0,1fr) 96px;align-items:end;gap:10px;margin-bottom:18px}.code-row .field{margin-bottom:0}.send-code-button{min-height:53px;border-radius:18px;padding:0 14px;white-space:nowrap}.form-message{margin:12px 0 0;color:var(--clay);font-weight:800}.quota-message{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.quota-message a{color:var(--leaf);text-decoration:none;border-bottom:2px solid rgba(31,122,79,.28)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:980px){.app-header{grid-template-columns:1fr auto}.nav-links{grid-column:1 / -1;justify-content:flex-start;overflow-x:auto}.workspace-grid,.compose-grid,.purchase-layout,.profile-grid,.hero-panel{grid-template-columns:1fr}.control-card,.checkout-card{position:static}.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.app-header{top:8px;width:calc(100% - 20px);border-radius:22px;grid-template-columns:minmax(0,1fr) auto;gap:10px}.brand-link{min-width:0}.brand-mark{width:44px;height:44px}.brand-text{overflow:hidden;text-overflow:ellipsis}.mobile-menu-button{display:inline-flex;align-items:center;justify-content:center;width:44px;min-height:44px;border:0;border-radius:16px;background:var(--ink);color:var(--paper);box-shadow:0 12px 24px #17201929}.desktop-auth-action{display:none}.nav-links{display:none;grid-column:1 / -1;width:100%;padding-top:10px;border-top:1px solid rgba(23,32,25,.08);overflow:visible}.nav-links.open{display:grid;grid-template-columns:1fr;gap:8px}.nav-link,.mobile-auth-action{width:100%;min-height:46px;justify-content:flex-start;padding:0 14px;border-radius:16px}.mobile-auth-action{display:inline-flex;margin-top:4px}.app-main{width:calc(100% - 20px);margin-top:16px}.app-footer{width:calc(100% - 20px);margin-top:-34px;flex-wrap:wrap;font-size:.92rem}.hero-panel,.page-title,.builder-card,.control-card,.editor-card,.result-card,.checkout-card,.profile-card,.account-empty,.history-card,.price-card{border-radius:24px;padding:18px}.pricing-grid,.scenario-dropdowns{grid-template-columns:1fr}.nav-link span{white-space:nowrap}.login-dialog .code-row{grid-template-columns:minmax(0,1fr) 92px}.order-row,.order-side{align-items:flex-start;justify-content:flex-start}.order-side{width:100%;margin-left:0}h1{letter-spacing:-.05em}}