:root{--text: #18181b;--muted: #8b8b92;--subtle: #f7f7f8;--surface: #ffffff;--line: #e8e8ed;--accent: #ff7a1a;--danger: #ff2d55;--positive: #22b64b;--blue: #0a84ff;--surface-raised: rgba(255, 255, 255, .92);--surface-soft: #fbfbfc;--accent-soft: #fff3e8;--dock-reserved-height: calc(96px + env(safe-area-inset-bottom)) ;--bottom-dock-safe-area: calc(56px + env(safe-area-inset-bottom)) ;--shadow-float: 0 12px 30px rgba(17, 24, 39, .07);--shadow-soft: 0 8px 22px rgba(17, 24, 39, .045);--shadow-card: 0 10px 28px rgba(17, 24, 39, .035);font-family:SF Pro Text,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft 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env(safe-area-inset-top)) 18px calc(30px + env(safe-area-inset-bottom));background:linear-gradient(180deg,#fff,#fbfbfc 48%,#f5f5f7);-webkit-overflow-scrolling:touch}.portal-hero{display:grid;gap:8px;padding:10px 2px 18px}.portal-hero span,.portal-model-card span,.role-preview-header span,.role-section-title small{color:#8b8b92;font-size:13px;font-weight:700}.portal-hero h1,.role-preview-header h1{margin:0;color:var(--text);font-size:36px;line-height:1.02;font-weight:850;letter-spacing:0}.portal-hero p,.portal-model-card p,.role-preview-card p{margin:0;color:#6f6f76;font-size:15px;line-height:1.55}.portal-role-grid{display:grid;gap:12px}.portal-role-card{display:grid;grid-template-columns:48px minmax(0,1fr);gap:14px;width:100%;padding:16px;color:var(--text);text-align:left;background:#fffffff2;border:1px solid rgba(17,24,39,.06);border-radius:22px;box-shadow:var(--shadow-card)}.portal-role-card.teacher{border-color:#ff7a1a3d;background:linear-gradient(180deg,#fff8f1,#fff 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5.8ch)}.payments-panel .payment-due-amount:before{content:"待收";text-align:left}.payments-panel .payment-row-button{grid-template-columns:116px minmax(0,1fr) minmax(96px,max-content);margin:0;padding-right:4px;padding-left:4px;border-radius:10px}.payments-panel .payment-row-button strong{display:-webkit-box;min-width:0;max-width:100%;align-self:center;overflow:hidden;text-overflow:clip;white-space:normal;word-break:break-word;overflow-wrap:anywhere;-webkit-box-orient:vertical;-webkit-line-clamp:2}.payments-panel .payment-row-button:active{background:#fff7ef}.payments-panel .payment-record-row{grid-template-columns:minmax(104px,1fr) minmax(42px,.7fr) minmax(54px,auto) 48px;column-gap:8px}.payments-panel .payment-record-row em{font-size:15px}.payments-panel .payment-record-row button{justify-self:end;min-height:30px;padding:0 10px;font-size:12px;font-weight:640}.payments-panel .payment-record-row i{width:48px}.payments-panel .compact-total-row{grid-template-columns:minmax(132px,1.32fr) 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#11182714}.income-line-chart{width:100%;max-width:100%;height:auto;overflow:visible}.income-line-chart line{stroke:#e6e6ea;stroke-width:1}.income-line-chart .line-area{fill:#34c7591f}.income-line-chart .line-path{fill:none;stroke:#34c759;stroke-linecap:round;stroke-linejoin:round;stroke-width:4}.income-line-chart circle{fill:#34c759;stroke:#fff;stroke-width:2}.income-line-chart text{fill:var(--muted);font-size:10px;font-weight:700;text-anchor:middle}.chart-axis-labels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));color:var(--muted);font-size:12px;font-weight:650}.chart-axis-labels span:nth-child(2){text-align:center}.chart-axis-labels span:last-child{text-align:right}.chart-empty{margin:0;color:var(--muted);font-size:13px;line-height:1.45}.chart-empty.inline{padding:8px 0}.pie-switch-stack{display:grid;gap:8px;margin-bottom:14px}.pie-group-switch,.pie-period-switch,.pie-metric-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:4px;background:#f1f1f4;border-radius:13px}.pie-period-switch{grid-template-columns:repeat(4,minmax(0,1fr))}.pie-metric-switch{background:#fff3e9;grid-template-columns:repeat(3,minmax(0,1fr))}.pie-group-switch button,.pie-period-switch button,.pie-metric-switch button{min-height:34px;color:var(--muted);border:0;border-radius:10px;background:transparent;font-size:14px;font-weight:760}.pie-group-switch button.active,.pie-period-switch button.active,.pie-metric-switch button.active{color:var(--text);background:var(--surface);box-shadow:0 5px 14px #10182814}.pie-metric-switch button.active{color:#fff;background:var(--accent);box-shadow:0 8px 18px #ff7a1a33}.pie-chart-layout{display:grid;grid-template-columns:112px 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2px 8px #11182714}.note-color-swatch:focus-visible,.note-toolbar-row button:focus-visible,.note-color-tool:focus-visible{outline:2px solid rgba(242,111,24,.42);outline-offset:2px}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;white-space:nowrap!important}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;align-items:end;background:#00000059}.payment-sheet{width:min(100%,520px);max-height:min(82vh,720px);margin:0 auto;overflow:auto;padding:18px 18px calc(18px + env(safe-area-inset-bottom));border-radius:22px 22px 0 0}.sheet-header{display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:10px;margin-bottom:16px}.sheet-header button{display:grid;place-items:center;width:38px;height:38px;color:var(--text);background:var(--subtle);border:0;border-radius:19px}.sheet-header p{margin:0;color:#8e8e93;font-size:13px}.sheet-header h2{margin:2px 0 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var(--line);border-radius:14px}.student-recent-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:12px;border-bottom:1px solid var(--line)}.student-recent-row:last-child{border-bottom:0}.student-recent-row div{display:grid;gap:4px;min-width:0}.student-recent-row div:last-child{justify-items:end;text-align:right}.student-recent-row strong{color:var(--text);font-size:14px;font-weight:820}.export-summary-card{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.export-summary-card div{min-height:66px;padding:12px;background:var(--subtle);border-radius:14px}.export-summary-card .export-range-card{display:grid;grid-column:1 / -1;grid-template-columns:1fr;gap:8px;min-height:118px}.export-range-card label{display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:8px;min-width:0}.export-range-card em{color:var(--muted);font-size:12px;font-style:normal;font-weight:720}.export-range-card input{min-width:0;width:100%;height:36px;padding:0 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rgba(255,122,26,.16)}.undo-toast{position:fixed;left:50%;bottom:calc(104px + env(safe-area-inset-bottom));z-index:80;display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:10px;width:min(calc(100% - 32px),488px);min-height:54px;padding:9px 10px 9px 16px;color:#fff;background:#1c1c1ef0;border-radius:18px;box-shadow:0 18px 42px #0000003d;transform:translate(-50%);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.undo-toast span{overflow:hidden;font-size:15px;font-weight:750;text-overflow:ellipsis;white-space:nowrap}.undo-action,.undo-close{border:0}.undo-action{min-height:36px;padding:0 12px;color:#ff9f0a;background:#ffffff1f;border-radius:18px;font-size:15px;font-weight:850}.undo-close{display:grid;place-items:center;width:36px;height:36px;color:#fff;background:#ffffff1a;border-radius:18px}.app-shell{background:linear-gradient(180deg,#fff,#fbfbfc 46%,#f6f6f8)}.calendar-screen{background:linear-gradient(180deg,#fff,#fff 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