:root{--primary:#0f766e;--primary-dark:#115e59;--accent:#c2410c;--bg:#f0fdfa;--surface:#fff;--text:#134e4a;--muted:#52666a;--border:#99d8d1;--danger:#b91c1c;--warning:#9a3412;--shadow:0 8px 24px rgba(15,118,110,.1);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg);font-size:16px}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(180deg,#d9f7f2 0,#f7fffd 260px);line-height:1.5}.app-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:max(16px,env(safe-area-inset-top)) 20px 14px;background:rgba(240,253,250,.93);backdrop-filter:blur(12px);border-bottom:1px solid rgba(153,216,209,.7)}h1,h2,p{margin:0}h1{font-size:1.25rem}h2{font-size:1.1rem}.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--primary);text-transform:uppercase}.user-chip,.step-badge,.status-pill{border:0;border-radius:999px;padding:7px 11px;font-weight:700;background:#ccfbf1;color:var(--primary-dark)}.user-chip{min-height:44px;cursor:pointer}main{width:min(100%,720px);margin:auto;padding:20px 16px calc(104px + env(safe-area-inset-bottom))}.view{display:none}.view.active{display:block}.banner{padding:12px 14px;margin-bottom:16px;border-radius:12px;background:#fff7ed;color:#9a3412;border:1px solid #fed7aa}.hero-card{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px;border-radius:20px;color:white;background:linear-gradient(135deg,var(--primary-dark),var(--primary));box-shadow:var(--shadow)}.hero-card h2{margin:12px 0 8px;font-size:1.35rem}.hero-card p{color:#d5f5ef}.step-badge{display:inline-block;background:#fff;color:var(--primary-dark);font-size:.75rem}.hero-icon{width:76px;min-width:76px;color:#ccfbf1}.upload-card{display:flex;min-height:190px;margin:18px 0 24px;padding:24px;align-items:center;justify-content:center;flex-direction:column;gap:8px;border:2px dashed var(--border);border-radius:20px;background:var(--surface);cursor:pointer;text-align:center;transition:border-color .2s,box-shadow .2s}.upload-card:hover,.upload-card:focus-within{border-color:var(--primary);box-shadow:var(--shadow)}.upload-card span:last-of-type,.muted{color:var(--muted);font-size:.875rem}.upload-icon{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:#ccfbf1;color:var(--primary)}.upload-icon svg{width:30px}input[type=file]{position:absolute;width:1px;height:1px;clip:rect(0 0 0 0)}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:20px 0 12px}.text-button,.back-button{min-height:44px;border:0;background:transparent;color:var(--primary);font-weight:700;cursor:pointer}.back-button{display:flex;align-items:center;padding:0;margin-bottom:8px}.back-button svg{width:24px}.document-list{display:grid;gap:10px}.document-card{width:100%;display:flex;align-items:center;justify-content:space-between;min-height:72px;padding:14px;border:1px solid #c9e8e4;border-radius:14px;background:white;text-align:left;color:var(--text);cursor:pointer}.document-card:hover{border-color:var(--primary)}.document-card strong,.document-card span{display:block}.document-card span{color:var(--muted);font-size:.85rem}.empty{padding:28px;text-align:center;color:var(--muted);background:rgba(255,255,255,.55);border-radius:14px}.preview-frame{aspect-ratio:16/9;overflow:hidden;margin-bottom:16px;border-radius:16px;background:#d9e8e6}.preview-frame img{width:100%;height:100%;object-fit:contain}.card,.line-card{padding:16px;border:1px solid #c9e8e4;border-radius:16px;background:white;box-shadow:0 3px 12px rgba(15,118,110,.05)}.form-grid{display:grid;gap:14px}.form-grid label,.line-card label{display:grid;gap:6px;font-size:.85rem;font-weight:700;color:var(--muted)}input{width:100%;min-height:46px;padding:10px 12px;border:1px solid #96bdb9;border-radius:10px;background:white;color:var(--text);font:inherit}input:focus{outline:3px solid rgba(13,148,136,.2);border-color:var(--primary)}input:disabled{background:#edf5f4;color:#52666a}.line-editor{display:grid;gap:12px}.line-card{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:12px}.line-card .full{grid-column:1/-1}.quantity-summary{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap;padding-top:10px;border-top:1px solid #e1efed}.quantity-summary span{padding:5px 9px;border-radius:8px;background:#ecfdf5;font-size:.8rem}.quantity-summary .gift{background:#fff7ed;color:var(--warning)}.error-summary{margin-bottom:14px;padding:14px;border-left:4px solid var(--danger);border-radius:10px;background:#fef2f2;color:var(--danger)}.error-summary ul{margin:8px 0 0;padding-left:20px}.confirm-row{display:flex;align-items:flex-start;gap:10px;margin:18px 2px;color:var(--muted)}.confirm-row input{width:22px;min-height:22px}.sticky-actions{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;gap:10px;padding:12px max(16px,calc((100vw - 688px)/2)) calc(12px + env(safe-area-inset-bottom));background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-top:1px solid #c9e8e4}.primary-button,.secondary-button{min-height:50px;flex:1;border-radius:12px;border:1px solid var(--primary);font-weight:800;font-size:1rem;cursor:pointer}.primary-button{background:var(--primary);color:#fff}.secondary-button{background:#fff;color:var(--primary)}button:disabled{cursor:not-allowed;opacity:.5}.toast{position:fixed;left:50%;bottom:90px;z-index:30;max-width:calc(100% - 32px);transform:translateX(-50%) translateY(20px);padding:11px 16px;border-radius:10px;background:#133c39;color:#fff;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(min-width:620px){main{padding-left:24px;padding-right:24px}.form-grid{grid-template-columns:1fr 1fr}.form-grid label:first-child{grid-column:1/-1}}
.settings-form{display:grid;gap:16px}.settings-form label{display:grid;gap:6px;font-size:.9rem;font-weight:700;color:var(--muted)}.form-help,.permission-note p{color:var(--muted)}.full-button{width:100%;margin-top:4px}.permission-note{margin-top:16px}.permission-note h2{margin-bottom:8px}
@media(max-width:420px){.hero-icon{display:none}.line-card{grid-template-columns:1fr 1fr}.line-card label:first-child{grid-column:1/-1}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
@media(prefers-color-scheme:dark){:root{--bg:#071d1b;--surface:#102b28;--text:#e6fffb;--muted:#b2cfca;--border:#367871}body{background:linear-gradient(180deg,#0a302c,#071d1b 260px)}.app-header{background:rgba(7,29,27,.94)}.card,.line-card,.document-card,.upload-card{background:var(--surface);border-color:#285d58}input{background:#092421;color:var(--text);border-color:#477b76}input:disabled{background:#183a37;color:#c1d9d5}.empty{background:rgba(16,43,40,.7)}.sticky-actions{background:rgba(7,29,27,.96);border-color:#285d58}.secondary-button{background:#102b28}.quantity-summary{border-color:#285d58}.quantity-summary span{background:#123d35}.preview-frame{background:#061816}}