:root{--blue: #3d8fff;--blue-deep: #005cd9;--tint-blue: #f2f7ff;--ink: #1d1d1f;--muted: #7a7a7a;--canvas: #f5f5f7;--card: #ffffff;--hairline: #e0e0e0;--on-blue: #ffffff;--danger: #e24b4b;--radius-sm: 12px;--radius-md: 16px;--radius-lg: 18px;--radius-xl: 22px;--radius-pill: 36px;--font: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", sans-serif;--shadow-card: 0 8px 24px rgba(26, 31, 51, .05);--grad-blue: linear-gradient(90deg, #3d8fff, #0066e6)}*{box-sizing:border-box}html,body{margin:0;height:100%}body{font-family:var(--font);color:var(--ink);background:#e8e8ed;-webkit-font-smoothing:antialiased}#app{min-height:100%}button,input,textarea{font-family:inherit}button{border:0;background:none;color:inherit;cursor:pointer}input{outline:none}.stage{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px 12px}.phone{width:390px;height:844px;background:var(--canvas);border-radius:40px;overflow:hidden;position:relative;box-shadow:0 24px 60px #1c1c1f2e;display:flex;flex-direction:column}@media(max-width:430px){.stage{padding:0}.phone{width:100%;height:100dvh;border-radius:0;box-shadow:none}}.status-bar{height:62px;padding:24px 24px 0;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;font-weight:600;font-size:15px}.status-bar .icons{display:flex;gap:6px;align-items:center}.screen{flex:1;min-height:0;display:flex;flex-direction:column;background:var(--canvas)}.scroll{flex:1;min-height:0;overflow:auto;padding:20px 20px 8px;display:flex;flex-direction:column;gap:14px}.page-title{font-size:34px;font-weight:700;margin:0;letter-spacing:-.6px}.sub{font-size:15px;color:var(--muted);margin:0}.label{font-size:13px;color:var(--muted)}.nav-bar{height:48px;padding:0 12px;display:flex;align-items:center;gap:0;flex-shrink:0}.nav-bar .side{width:36px;height:36px;display:grid;place-items:center;flex-shrink:0;font-size:20px}.nav-bar h1{flex:1;text-align:center;font-size:17px;font-weight:600;margin:0}.hero-trip{background:linear-gradient(135deg,#3d8fff,#005cd9);color:#fff;border-radius:var(--radius-xl);padding:20px;display:flex;flex-direction:column;gap:10px;box-shadow:0 16px 32px #005cd959;text-align:left}.hero-trip .kicker{font-size:13px;opacity:.85}.hero-trip h2{margin:0;font-size:22px;font-weight:700}.hero-trip .meta{font-size:14px;opacity:.92}.hero-trip .progress-row{display:flex;justify-content:space-between;font-size:13px}.hero-trip .bar{height:6px;border-radius:3px;background:#ffffff47;overflow:hidden}.hero-trip .bar>i{display:block;height:100%;background:#fff;border-radius:3px}.trip-card{background:var(--card);border:1px solid #ededf2;border-radius:var(--radius-xl);padding:20px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow-card);text-align:left}.trip-card h2{margin:0;font-size:18px}.trip-card .meta{color:var(--muted);font-size:14px}.create-btn{width:100%;height:50px;border-radius:25px;background:#fff;border:1px solid #e6e6e6;box-shadow:0 6px 20px #1a1f330d;font-weight:650;font-size:16px;display:flex;align-items:center;justify-content:center;gap:6px}.tab-wrap{padding:12px 12px calc(12px + env(safe-area-inset-bottom,0px));background:var(--canvas);flex-shrink:0}.tab-pill{height:62px;border-radius:var(--radius-pill);background:#fff;border:1px solid #e0e0e0;box-shadow:0 8px 24px #0000000f;display:grid;grid-template-columns:repeat(3,1fr);align-items:center;gap:4px;padding:4px}.tab{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;color:var(--muted);font-weight:600;height:100%;justify-content:center;border-radius:26px;text-decoration:none}.tab.on{color:var(--on-blue);background:var(--grad-blue)}.tab svg{width:20px;height:20px}.summary-card,.item-row,.field,.stepper,.record-card,.me-row,.rec-head{background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.summary-card{padding:18px;display:flex;flex-direction:column;gap:8px}.summary-card h2{margin:0;font-size:20px}.invite{height:48px;border-radius:24px;background:var(--grad-blue);color:#fff;font-weight:700;box-shadow:0 8px 20px #0066e64d}.section-head{display:flex;justify-content:space-between;align-items:baseline}.section-head h3{margin:0;font-size:16px}.item-row{display:flex;gap:12px;padding:13px;align-items:center;text-align:left;border-radius:var(--radius-md)}.item-row.tint{background:var(--tint-blue);box-shadow:none}.check{width:22px;height:22px;border-radius:11px;border:1.5px solid var(--hairline);flex-shrink:0;display:grid;place-items:center}.check.on{background:var(--blue);border-color:var(--blue);color:#fff}.item-row .name{font-weight:650;font-size:15px}.item-row .note{font-size:13px;color:var(--muted)}.add-item{border:1px dashed #e0e5f2;color:var(--blue);font-weight:650}.archive{height:46px;border-radius:23px;background:#fff;border:1px solid #ffd9d9;color:var(--danger);font-weight:650}.field{height:48px;border-radius:var(--radius-sm);border:1px solid #e0e0e0;padding:0 14px;font-size:15px;width:100%;box-shadow:none}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{height:36px;padding:0 14px;border-radius:18px;background:#fff;border:1px solid var(--hairline);font-weight:600;font-size:13px}.chip.on{background:var(--tint-blue);border-color:var(--blue);color:var(--blue-deep)}.stepper{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-radius:var(--radius-md)}.stepper strong{font-size:18px;min-width:28px;text-align:center}.stepper>div{display:flex;align-items:center;gap:8px}.stepper button{width:36px;height:36px;border-radius:18px;background:var(--tint-blue);color:var(--blue-deep);font-size:20px}.bottom-cta{padding:20px 20px calc(28px + env(safe-area-inset-bottom,0px))}.cta{width:100%;height:52px;border-radius:26px;background:var(--grad-blue);color:#fff;font-weight:700;font-size:16px;box-shadow:0 10px 24px #0066e652}.record-card{display:flex;gap:12px;padding:16px;align-items:center;text-align:left;border-radius:var(--radius-lg)}.record-card .go{color:var(--blue);font-weight:650;font-size:14px;margin-left:auto}.rec-head{padding:14px}.me-head{display:flex;flex-direction:column;gap:4px;padding:8px 0 12px}.me-row{display:flex;justify-content:space-between;align-items:center;padding:15px;border-radius:var(--radius-md)}.me-row input{border:0;text-align:right;font-size:15px;color:var(--muted);width:160px}.toast{position:absolute;left:50%;bottom:108px;transform:translate(-50%);background:#1c1c1fe0;color:#fff;padding:8px 14px;border-radius:14px;font-size:13px;z-index:30;white-space:nowrap}.maintain{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;text-align:center;gap:8px}.error{color:var(--danger);font-size:13px;margin:0}.empty{color:var(--muted);font-size:14px;padding:24px 0;text-align:center}