/* ==================== Apple 风格设计系统 ==================== */
:root {
    /* 主色调 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --text-primary: #1D1D1F;
    --text-secondary: #6E6E73;
    --text-tertiary: #86868B;
    --accent: #007AFF;
    --accent-hover: #0051D5;

    /* 状态色 */
    --success: #34C759;
    --warning: #FF9500;
    --error: #FF3B30;

    /* 边框与分割 */
    --border: #D2D2D7;
    --divider: #E8E8ED;

    /* 卡片 */
    --card-bg: #FFFFFF;
    --card-radius: 16px;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.04);
    --card-shadow-hover: 0 8px 24px rgba(0,0,0,0.12);

    /* 字体 */
    --font: -apple-system, "PingFang SC", "Helvetica Neue", "SF Pro Display", sans-serif;
    --text-hero: 48px;
    --text-title: 28px;
    --text-heading: 22px;
    --text-body: 17px;
    --text-caption: 14px;
    --text-small: 12px;

    /* 动画 */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 0.3s;

    /* 布局 */
    --sidebar-width: 192px;
    --header-height: 52px;
    --content-max: 980px;
}

/* ==================== 全局重置 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--text-body);
    line-height: 1.5;
    overflow-x: hidden;
    touch-action: manipulation;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 侧边栏 ==================== */
.sidebar {
    position: fixed;
    left: calc(-1 * var(--sidebar-width));
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: rgba(255,255,255,0.88);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    border: 1px solid rgba(0,0,0,0.06);
    border-left: none;
    border-radius: 0 18px 18px 0;
    box-shadow: 0 8px 40px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
    transition: left var(--duration) var(--ease);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h2 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--duration) var(--ease);
}

.close-btn:hover {
    background: var(--bg-secondary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 4px 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 400;
    transition: all var(--duration) var(--ease);
    margin-bottom: 1px;
}

.nav-item:hover {
    background: rgba(0,0,0,0.04);
}

.nav-item.active {
    background: var(--accent);
    color: #fff;
}

.nav-item.active .nav-icon {
    stroke: #fff;
}

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: var(--text-secondary);
    transition: stroke var(--duration) var(--ease);
}

.sidebar-footer {
    padding: 12px 14px;
}


.rebind-btn {
    width: 100%;
    padding: 9px;
    background: none;
    color: var(--error);
    border: 1px solid var(--error);
    border-radius: 10px;
    cursor: pointer;
    font-size: var(--text-caption);
    font-weight: 500;
    margin-bottom: 8px;
    transition: all var(--duration) var(--ease);
}

.rebind-btn:hover {
    background: var(--error);
    color: #fff;
}

.user-info {
    font-size: var(--text-small);
    color: var(--text-tertiary);
    text-align: center;
}

/* ==================== 主内容区域 ==================== */
.main-content {
    min-height: 100vh;
    transition: margin-left var(--duration) var(--ease);
}

/* ==================== 顶部导航栏（毛玻璃） ==================== */
.header {
    background: rgba(255,255,255,0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--divider);
    padding: 0 20px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    border-radius: 8px;
    transition: background var(--duration) var(--ease);
}

.menu-btn:hover {
    background: var(--bg-secondary);
}

.menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: var(--duration) var(--ease);
}

#page-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 登录状态指示器 */
.login-status-indicator {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-small);
    padding: 5px 12px;
    background: var(--bg-secondary);
    border-radius: 20px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.status-online {
    background: var(--success);
    box-shadow: 0 0 6px rgba(52,199,89,0.5);
}

.status-dot.status-offline {
    background: var(--error);
}

.status-dot.status-checking {
    background: var(--accent);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.status-text {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

/* ==================== 内容区域 ==================== */
.content-wrapper {
    padding: 20px 20px 36px;
    max-width: var(--content-max);
    margin: 0 auto;
}

/* ==================== 页面切换动画 ==================== */
.page {
    display: none;
    animation: fadeInUp var(--duration) var(--ease);
}

.page.active {
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}


.page-section-desc {
    margin: -8px 0 18px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.feedback-new-box {
    margin-bottom: 16px;
    padding: 16px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
}

.feedback-new-box textarea {
    width: 100%;
    resize: vertical;
    margin-bottom: 10px;
}

.feedback-visibility-row {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 13px;
}
/* ==================== 通用卡片 ==================== */
.card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 24px;
    box-shadow: var(--card-shadow);
    transition: box-shadow var(--duration) var(--ease);
}

.card h2 {
    font-size: var(--text-heading);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

/* ==================== 通用按钮 ==================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    height: 44px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease);
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary.btn-full {
    width: 100%;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    height: 44px;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease);
    white-space: nowrap;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-sm {
    height: 36px;
    padding: 0 16px;
    font-size: var(--text-caption);
    border-radius: 10px;
}

/* 刷新按钮 */
.refresh-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s var(--ease);
}

.refresh-btn:hover {
    background: var(--divider);
    color: var(--text-primary);
}

/* 周切换按钮 */
.week-btn {
    padding: 6px 16px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.week-btn:hover {
    opacity: 0.8;
}

/* 更新/数据操作按钮 */
.update-schedule-btn {
    padding: 10px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.update-schedule-btn:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

/* 图标按钮 */
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration) var(--ease);
    color: var(--text-secondary);
}

.icon-btn:hover {
    background: var(--bg-secondary);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
}

/* 操作栏 */
.action-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

/* ==================== 首页：紧急事项 ==================== */
.urgent-card {
    padding: 24px;
}

.urgent-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.urgent-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0;
}

.refresh-btn svg {
    transition: transform 0.6s var(--ease);
}

.refresh-btn:active svg {
    transform: rotate(360deg);
}

.urgent-content {
    min-height: 180px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.event-card {
    background: #fff;
    color: var(--text-primary);
    padding: 28px;
    border-radius: 14px;
    text-align: center;
    border: 1px solid var(--border);
}

.event-card-current {
    border-left: 4px solid #2d8cf0;
}

.event-card-next {
    padding: 20px;
    background: var(--bg-secondary, #f8f9fa);
}

.event-card-next .event-title {
    font-size: 18px;
    margin-bottom: 10px;
}

.event-card-next .countdown {
    font-size: 28px;
}

.event-card-next .event-location {
    font-size: 15px;
    padding: 8px 16px;
}

.event-card-upcoming {
    background: var(--bg-secondary, #f8f9fa);
}

.event-card-upcoming .event-title {
    font-size: 20px;
    margin-bottom: 10px;
}

.event-card-upcoming .event-location {
    font-size: 15px;
    padding: 8px 16px;
}

.event-time-label {
    font-size: 22px;
    font-weight: 700;
    color: var(--accent, #2d8cf0);
    margin-top: 10px;
    letter-spacing: 0.3px;
}

.rest-message {
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
    padding: 12px 0 4px;
    margin: 0 0 8px;
}

.event-type {
    font-size: var(--text-caption);
    color: var(--text-tertiary);
    margin-bottom: 8px;
    font-weight: 500;
}

.event-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
    color: var(--text-primary);
}

.event-location {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 600;
    background: #eef4ff;
    color: #2d8cf0;
    padding: 12px 20px;
    border-radius: 10px;
    display: inline-block;
    letter-spacing: 0.5px;
}

.event-time {
    font-size: var(--text-caption);
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.countdown {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 4px;
    color: #2d8cf0;
}

.countdown-urgent {
    color: var(--error) !important;
    animation: urgentBeat 1.2s ease-in-out infinite;
}

@keyframes urgentBeat {
    0%, 100% { transform: scale(1); }
    20%       { transform: scale(1.14); }
    40%       { transform: scale(1); }
    60%       { transform: scale(1.07); }
    80%       { transform: scale(1); }
}

.countdown-label {
    font-size: var(--text-caption);
    color: var(--text-tertiary);
}

.event-seat {
    margin-top: 16px;
    padding: 12px 20px;
    background: #fff7ed;
    color: #e67e22;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    display: inline-block;
    letter-spacing: 0.5px;
}

/* ==================== 课程表 ==================== */
.schedule-container {
    padding: 20px;
}

.week-selector {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.current-week {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 课程表提示消息 */
.schedule-message {
    text-align: center;
    padding: 10px 16px;
    margin-bottom: 8px;
    border-radius: 8px;
    font-size: 13px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.schedule-message-error {
    background: rgba(239, 68, 68, 0.08);
    color: var(--error);
}

/* 课程表头部 */
.schedule-header {
    display: grid;
    grid-template-columns: 70px repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 8px;
}

.schedule-header-day {
    text-align: center;
    font-weight: 600;
    color: var(--accent);
    padding: 6px 4px;
    background: rgba(0,122,255,0.06);
    border-radius: 8px;
    font-size: var(--text-caption);
}

.schedule-day-name {
    line-height: 1.2;
}

.schedule-day-date {
    font-size: 10px;
    font-weight: 400;
    color: var(--text-tertiary);
    line-height: 1.2;
    margin-top: 1px;
}

.schedule-day-today {
    background: var(--accent);
    color: #fff;
}

.schedule-day-today .schedule-day-date {
    color: rgba(255,255,255,0.75);
}

/* 周选择下拉框 */
.week-select {
    appearance: none;
    -webkit-appearance: none;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 6px 28px 6px 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

/* 课程表网格 */
.schedule-grid {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 8px;
}

.schedule-timeline {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.timeline-item {
    height: 76px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 4px;
}

.timeline-section {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.timeline-time-start,
.timeline-time-end {
    font-size: 10px;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.schedule-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    position: relative;
}

.schedule-day-column {
    position: relative;
    min-height: 660px;
}

.timeline-item-evening {
    display: none;
}

.schedule-grid.has-evening .timeline-item-evening {
    display: flex;
}

.schedule-grid.has-evening .schedule-day-column {
    min-height: 814px;
}

/* 隐藏周末 */
.schedule-header.no-weekend {
    grid-template-columns: 70px repeat(5, 1fr);
}

.schedule-header.no-weekend .schedule-header-weekend {
    display: none;
}

.no-weekend .schedule-days {
    grid-template-columns: repeat(5, 1fr);
}

.no-weekend .schedule-day-weekend {
    display: none;
}

/* 课程卡片 */
.course-card {
    border-radius: 10px;
    padding: 8px 6px;
    color: #fff;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s var(--ease);
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.course-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

.course-card-name {
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 3px;
    line-height: 1.3;
    word-break: break-all;
}

.course-card-location {
    font-size: 11px;
    opacity: 0.85;
}

.course-card-sections {
    font-size: 10px;
    opacity: 0.7;
    position: absolute;
    bottom: 4px;
    right: 6px;
}

/* 课程卡片颜色 — 苹果风格柔和色系 */
.course-card-color-0 { background: #007AFF; }
.course-card-color-1 { background: #5856D6; }
.course-card-color-2 { background: #AF52DE; }
.course-card-color-3 { background: #FF2D55; }
.course-card-color-4 { background: #FF9500; }
.course-card-color-5 { background: #34C759; }
.course-card-color-6 { background: #00C7BE; }
.course-card-color-7 { background: #30B0C7; }
.course-card-color-8 { background: #FF6482; }
.course-card-color-9 { background: #AC8E68; }
.course-card-color-10 { background: #5E5CE6; }
.course-card-color-11 { background: #BF5AF2; }
.course-card-color-12 { background: #64D2FF; color: #1c1c1e; }
.course-card-color-13 { background: #FFD60A; color: #1c1c1e; }
.course-card-color-14 { background: #FF375F; }

/* 课程详情弹窗 */
.course-detail-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-primary);
}

.course-detail-row:last-child {
    border-bottom: none;
}

.course-detail-label {
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-right: 16px;
}

/* ==================== 考试安排 ==================== */
.exams-container {
    padding: 24px;
}

.exam-group {
    margin-bottom: 28px;
}

.exam-group-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--divider);
}

.exam-card {
    background: var(--bg-secondary);
    padding: 16px 16px 16px 20px;
    border-radius: 12px;
    margin-bottom: 12px;
    border-left: 4px solid var(--accent);
    transition: all var(--duration) var(--ease);
}

.exam-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

/* 考试紧急程度颜色 */
.exam-card.exam-urgent { border-left-color: var(--error); }
.exam-card.exam-soon { border-left-color: var(--warning); }
.exam-card.exam-normal { border-left-color: var(--accent); }

.exam-course {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.exam-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: var(--text-caption);
    color: var(--text-secondary);
}

.exam-info-item {
    display: flex;
    align-items: center;
}

.exam-info-item strong {
    min-width: 70px;
    color: var(--text-primary);
    font-weight: 500;
}

.exam-countdown {
    font-size: var(--text-small);
    font-weight: 600;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--divider);
}

/* ==================== 成绩查询 ==================== */

/* 菜单卡片网格 */
.grades-menu {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding: 4px 0;
}


.grade-action-btn {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 20px 18px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    text-align: left;
}

.grade-action-btn:active {
    transform: scale(0.97);
}

.grade-action-btn svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent);
    margin-bottom: 4px;
}

.grade-action-btn-warn svg { stroke: var(--error); }
.grade-action-btn-accent svg { stroke: var(--success); }
.grade-action-btn-summary svg { stroke: var(--accent); }

.grade-action-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.grade-action-desc {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.4;
}

/* 返回按钮 */
.grades-back-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px 8px 10px;
    margin-bottom: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.grades-back-btn svg {
    width: 18px;
    height: 18px;
    stroke: var(--text-secondary);
}

.grades-container {
    padding: 24px;
}

.grades-table {
    width: 100%;
    border-collapse: collapse;
}

.grades-table th,
.grades-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--divider);
    font-size: 15px;
}

.grades-table th {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--text-caption);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.grades-table tr:hover {
    background: var(--bg-secondary);
}


.grades-table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.grades-table-wrap .grades-table th,
.grades-table-wrap .grades-table td {
    white-space: nowrap;
}
.score-high { color: var(--success); font-weight: 600; }
.score-medium { color: var(--warning); font-weight: 600; }
.score-low { color: var(--error); font-weight: 600; }

/* 不及格成绩分节 */
.failed-section { margin-bottom: 20px; }
.failed-section-title {
    font-size: 13px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 10px;
}
.failed-current { background: rgba(var(--error-rgb, 255,59,48), 0.12); color: var(--error); }
.failed-past    { background: rgba(var(--warning-rgb, 255,149,0), 0.12); color: var(--warning); }

.grade-summary-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.grade-summary-meta span {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 10px;
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 13px;
}

.grade-summary-empty {
    padding: 12px 0;
    margin: 0;
    color: var(--text-tertiary);
}

.passed-latest {
    background: rgba(var(--success-rgb, 52,199,89), 0.12);
    color: var(--success);
}
/* 绩点信息卡片 */
.gpa-info-card {
    margin-top: 24px;
    background: var(--card-bg);
    border-radius: 14px;
    padding: 24px;
    border: 1px solid var(--border);
}

.gpa-title {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
}

.gpa-items {
    display: flex;
    justify-content: space-around;
    gap: 16px;
    flex-wrap: wrap;
}

.gpa-item {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 130px;
    flex: 1;
}

.gpa-label {
    color: var(--text-secondary);
    font-size: var(--text-caption);
}

.gpa-value {
    color: var(--accent);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}


.gpa-detail-card {
    margin-top: 18px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
}

.gpa-detail-card .gpa-title {
    text-align: left;
    margin-bottom: 14px;
}

.gpa-detail-table th,
.gpa-detail-table td {
    font-size: 14px;
    text-align: center;
}

.gpa-detail-table th:first-child,
.gpa-detail-table td:first-child {
    min-width: 190px;
    text-align: left;
}

.gpa-detail-table td:first-child {
    color: var(--text-primary);
    font-weight: 650;
}

.gpa-detail-table td:not(:first-child) {
    color: var(--accent);
    font-weight: 700;
}

.gpa-empty {
    width: 100%;
    margin: 4px 0 0;
    color: var(--text-tertiary);
    text-align: center;
    font-size: 14px;
}
/* 学期选择弹窗 */
.semester-picker-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
    max-height: 60vh;
    overflow-y: auto;
}

.semester-option-btn {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
}

.semester-option-btn:active {
    background: var(--border);
}

/* ==================== 其他班级课表弹窗 ==================== */
.other-major-section-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 16px 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.other-major-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.other-major-chip {
    padding: 7px 16px;
    border-radius: 20px;
    font-size: 14px;
    border: 1.5px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.other-major-chip:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.other-major-chip.selected {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.other-major-confirm {
    margin-top: 20px;
}

/* ==================== 教务评价 ==================== */
.evaluation-container {
    padding: 24px;
}

.eval-notice {
    margin: 8px 0 4px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(0,122,255,0.04), rgba(0,122,255,0.02));
    border-left: 3px solid var(--primary);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
}
.eval-notice p { margin: 0; }
.eval-notice p + p { margin-top: 8px; }
.eval-notice a { color: var(--primary); text-decoration: underline; }

.evaluation-result {
    margin-top: 16px;
    border-radius: 12px;
}

.result-success {
    background: rgba(52,199,89,0.08);
    color: var(--success);
    padding: 16px;
    border-radius: 12px;
}

.result-error {
    background: rgba(255,59,48,0.08);
    color: var(--error);
    padding: 16px;
    border-radius: 12px;
}

.eval-btn {
    padding: 12px 32px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.eval-btn:hover {
    background: var(--accent-hover);
}

.eval-btn:active {
    transform: scale(0.98);
}

/* ==================== 弹窗 ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    padding: 28px;
    border-radius: 20px;
    max-width: 420px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    animation: modalIn var(--duration) var(--ease);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-content h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.modal-desc {
    color: var(--text-secondary);
    font-size: var(--text-caption);
    margin-bottom: 20px;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg-secondary);
    border: none;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration) var(--ease);
    line-height: 1;
}

.modal-close:hover {
    background: var(--divider);
    color: var(--text-primary);
}

/* ==================== 表单 ==================== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--card-bg);
    transition: border-color var(--duration) var(--ease);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #C7C7CC;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.6;
}

.form-select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--card-bg);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236E6E73' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    outline: none;
    transition: border-color var(--duration) var(--ease);
}

.form-select:focus {
    border-color: var(--accent);
}

.error-message {
    color: var(--error);
    font-size: var(--text-caption);
    margin-top: 10px;
    text-align: center;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    justify-content: flex-end;
}

/* ==================== 论文生成 ==================== */
.paper-container {
    padding: 24px;
}

.paper-warning {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,149,0,0.08);
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 3px solid var(--warning);
}

.warning-icon-svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.warning-text {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
}

.paper-mode-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-secondary);
    padding: 3px;
}

.paper-mode-tab {
    flex: 1;
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--text-caption);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    border-radius: 8px;
}

.paper-mode-tab.active {
    background: var(--card-bg);
    color: var(--text-primary);
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.paper-mode-tab:hover:not(.active) {
    color: var(--text-primary);
}

.mode-description {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.mode-description.simple-desc {
    background: rgba(0,122,255,0.06);
    border-left: 3px solid var(--accent);
}

.mode-description.complex-desc {
    background: rgba(175,82,222,0.06);
    border-left: 3px solid #AF52DE;
}

.desc-title {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.desc-content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.paper-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.paper-result {
    margin-top: 20px;
}

/* 示例论文下载 */
.sample-paper-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: var(--text-caption);
    color: var(--text-secondary);
}

.sample-paper-link {
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
    transition: opacity var(--duration) var(--ease);
}

.sample-paper-link:hover {
    opacity: 0.7;
}

/* 进度条 */
.progress-container {
    padding: 20px;
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--divider);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width 0.4s var(--ease);
}

.progress-text {
    font-size: var(--text-caption);
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.progress-percent {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.5px;
}

/* 草稿列表 */
.paper-drafts-list {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.paper-drafts-list h4 {
    margin: 0 0 12px 0;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
}

.draft-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: var(--card-bg);
    border-radius: 10px;
    margin-bottom: 8px;
    transition: all var(--duration) var(--ease);
}

.draft-item:hover {
    box-shadow: var(--card-shadow);
}

.draft-item:last-child {
    margin-bottom: 0;
}

.draft-info { flex: 1; }

.draft-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 3px;
    font-size: 15px;
}

.draft-meta {
    font-size: var(--text-small);
    color: var(--text-tertiary);
}

.draft-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.draft-btn {
    padding: 5px 12px;
    border: none;
    border-radius: 8px;
    font-size: var(--text-small);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.draft-btn:active { transform: scale(0.96); }

.draft-btn-load {
    background: var(--accent);
    color: #fff;
}

.draft-btn-delete {
    background: rgba(255,59,48,0.1);
    color: var(--error);
}

.draft-btn-delete:hover {
    background: var(--error);
    color: #fff;
}

.draft-btn-feedback {
    background: rgba(255,149,0,0.1);
    color: var(--warning);
}

.draft-btn-feedback:hover {
    background: var(--warning);
    color: #fff;
}

.draft-btn-confirm {
    background: rgba(52,199,89,0.1);
    color: var(--success);
}

.draft-btn-confirm:hover {
    background: var(--success);
    color: #fff;
}

.no-drafts {
    text-align: center;
    color: var(--text-tertiary);
    padding: 20px;
    font-size: var(--text-caption);
}

/* 文件上传 */
.file-upload-box {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    background: var(--bg-secondary);
    transition: all var(--duration) var(--ease);
}

.file-upload-box:hover {
    border-color: var(--accent);
}

.file-upload-box input[type="file"] {
    width: 100%;
    padding: 8px;
    cursor: pointer;
    font-size: var(--text-caption);
}

.file-upload-hint {
    margin-top: 8px;
    font-size: var(--text-small);
    color: var(--text-tertiary);
}

.uploaded-file-info {
    margin-top: 10px;
    padding: 10px 14px;
    background: rgba(52,199,89,0.08);
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uploaded-file-name {
    color: var(--success);
    font-weight: 500;
    font-size: var(--text-caption);
}

.uploaded-file-remove {
    background: rgba(255,59,48,0.1);
    color: var(--error);
    border: none;
    padding: 4px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--text-small);
    transition: all 0.2s var(--ease);
}

.uploaded-file-remove:hover {
    background: var(--error);
    color: #fff;
}

/* 反馈弹窗 */
.feedback-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border-radius: 10px;
    margin-bottom: 16px;
    font-size: var(--text-caption);
}

.feedback-title-text {
    font-weight: 600;
    color: var(--text-primary);
}

.feedback-hint {
    font-size: var(--text-small);
    color: var(--warning);
    margin: 12px 0;
    padding: 10px 14px;
    background: rgba(255,149,0,0.06);
    border-radius: 10px;
    border-left: 3px solid var(--warning);
    line-height: 1.5;
}

/* 签收弹窗警告 */
.receipt-warning {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    background: rgba(255,59,48,0.06);
    border-radius: 12px;
    margin: 16px 0;
    border-left: 3px solid var(--error);
}

.receipt-warning .warning-content p {
    margin: 0;
    color: var(--error);
    font-size: var(--text-caption);
    line-height: 1.6;
}

.receipt-warning .warning-content p:first-child {
    margin-bottom: 4px;
}

/* ==================== 公告 ==================== */
.announcements-container {
    padding: 24px;
}

.announcements-list-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.announcement-item {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 12px;
    border-left: 3px solid var(--accent);
    transition: all var(--duration) var(--ease);
}

.announcement-item:hover {
    box-shadow: var(--card-shadow);
    transform: translateY(-2px);
}

.announcement-item.unread {
    background: rgba(0,122,255,0.04);
    border-left-color: var(--success);
}

.announcement-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.announcement-item-header h3 {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    flex: 1;
}

.read-badge,
.unread-badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}

.read-badge {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
}

.unread-badge {
    background: rgba(52,199,89,0.12);
    color: var(--success);
}

.announcement-item-content {
    color: var(--text-secondary);
    font-size: var(--text-caption);
    line-height: 1.8;
    margin-bottom: 12px;
}

.announcement-item-footer {
    display: flex;
    justify-content: flex-end;
}

.announcement-item-time {
    color: var(--text-tertiary);
    font-size: var(--text-small);
}

/* 公告弹窗 */
.announcement-popup .modal-content {
    max-width: 560px;
}

.announcement-popup-content {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.announcement-popup-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--divider);
}

.never-show-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: var(--text-caption);
    cursor: pointer;
    user-select: none;
}

.never-show-label input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--accent);
}

/* ==================== 反馈建议 ==================== */
.feedback-container {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.feedback-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.feedback-hero h2 {
    margin-bottom: 8px;
}

.feedback-hero .page-section-desc {
    max-width: 620px;
    margin-bottom: 0;
}

.feedback-hero-note,
.feedback-soft-badge,
.feedback-visibility-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: rgba(0, 122, 255, 0.08);
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.feedback-new-box {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(245,247,251,0.96));
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.feedback-new-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.feedback-new-head h3 {
    margin: 0 0 4px;
    color: var(--text-primary);
    font-size: 17px;
    line-height: 1.25;
}

.feedback-new-head p {
    margin: 0;
    color: var(--text-tertiary);
    font-size: 13px;
}

.feedback-new-box textarea,
.feedback-textarea {
    width: 100%;
    min-height: 132px;
    padding: 14px 15px;
    border: 1px solid var(--divider);
    border-radius: 12px;
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.7;
    resize: vertical;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}

.feedback-new-box textarea:focus,
.feedback-textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(0,122,255,0.10);
}

.feedback-visibility-row,
.feedback-form-footer {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
    align-items: stretch;
    gap: 10px;
}

.feedback-choice,
.visibility-option {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 54px;
    padding: 10px 12px;
    border: 1px solid var(--divider);
    border-radius: 12px;
    background: rgba(255,255,255,0.74);
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}

.feedback-choice:hover,
.visibility-option:hover,
.feedback-choice:has(input:checked),
.visibility-option:has(input:checked) {
    border-color: rgba(0, 122, 255, 0.45);
    background: rgba(0, 122, 255, 0.06);
    box-shadow: 0 8px 18px rgba(0, 122, 255, 0.08);
}

.feedback-choice input[type="radio"],
.visibility-option input[type="radio"] {
    flex: 0 0 auto;
    cursor: pointer;
    accent-color: var(--accent);
}

.feedback-choice span {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.feedback-choice strong {
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.25;
}

.feedback-choice small {
    color: var(--text-tertiary);
    font-size: 12px;
    line-height: 1.35;
}

.feedback-submit-btn {
    height: 54px;
    align-self: stretch;
    padding: 0 22px;
    border-radius: 12px;
    white-space: nowrap;
}

.feedback-list-content {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feedback-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 8px;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 700;
}

.feedback-section-title::before {
    content: "";
    width: 4px;
    height: 16px;
    border-radius: 999px;
    background: var(--accent);
}

.feedback-card {
    background: rgba(255,255,255,0.94);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.feedback-floor {
    position: relative;
    padding: 16px 18px;
    border-bottom: 1px solid var(--divider);
}

.feedback-floor:last-of-type {
    border-bottom: none;
}

.feedback-floor-admin {
    background: rgba(52,199,89,0.06);
}

.feedback-floor-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.feedback-floor-num {
    min-width: 34px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
}

.feedback-username {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 700;
}

.feedback-username.admin-tag {
    color: var(--success);
}

.feedback-floor-content {
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.75;
    word-break: break-word;
    white-space: normal;
}

.feedback-floor-time {
    margin-top: 10px;
    color: var(--text-tertiary);
    font-size: 12px;
    text-align: right;
}

.feedback-visibility-badge {
    margin-left: auto;
    background: rgba(110, 110, 115, 0.10);
    color: var(--text-secondary);
}

.feedback-visibility-badge.is-public {
    background: rgba(0, 122, 255, 0.08);
    color: var(--accent);
}

.feedback-reply-bar {
    display: flex;
    justify-content: flex-end;
    padding: 10px 18px;
    background: rgba(245, 245, 247, 0.66);
    border-top: 1px solid var(--divider);
}

.feedback-reply-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 0 12px;
    border: 1px solid rgba(0, 122, 255, 0.22);
    border-radius: 10px;
    background: rgba(0, 122, 255, 0.07);
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.feedback-reply-btn:hover {
    background: rgba(0, 122, 255, 0.12);
    transform: translateY(-1px);
}

.feedback-reply-box {
    padding: 14px 18px 18px;
    display: flex;
    gap: 10px;
    align-items: flex-end;
    background: rgba(245, 245, 247, 0.66);
}

.feedback-reply-textarea {
    flex: 1;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid var(--divider);
    border-radius: 10px;
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.5;
    resize: vertical;
    font-family: inherit;
    box-sizing: border-box;
}

.feedback-reply-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,122,255,0.10);
}

.feedback-empty-hint {
    margin-top: 6px;
    color: var(--text-tertiary);
    font-size: 13px;
}

@media (max-width: 760px) {
    .feedback-hero,
    .feedback-new-head {
        flex-direction: column;
    }

    .feedback-visibility-row,
    .feedback-form-footer {
        grid-template-columns: 1fr;
    }

    .feedback-submit-btn {
        width: 100%;
    }

    .feedback-reply-box {
        flex-direction: column;
        align-items: stretch;
    }
}
/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-tertiary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state-text {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ==================== 遮罩层 ==================== */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 999;
    transition: opacity var(--duration) var(--ease);
}

.overlay.active {
    display: block;
}

/* ==================== 加载动画 ==================== */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-tertiary);
    font-size: 15px;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--divider);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    :root {
        --header-height: 44px;
    }

    .content-wrapper {
        padding: 12px;
    }

    .card {
        padding: 16px;
        border-radius: 14px;
    }

    .card h2 {
        font-size: 18px;
    }

    /* 课程表移动端 */
    .schedule-container { padding: 12px; }

    .schedule-header {
        grid-template-columns: 50px repeat(7, 1fr);
        gap: 3px;
    }

    .schedule-header.no-weekend {
        grid-template-columns: 50px repeat(5, 1fr);
    }

    .schedule-header-day {
        font-size: 11px;
        padding: 4px 2px;
    }

    .schedule-day-date {
        font-size: 9px;
    }

    .schedule-grid {
        grid-template-columns: 50px 1fr;
        gap: 4px;
    }

    .timeline-item {
        height: 56px;
        padding: 2px;
    }

    .schedule-timeline { gap: 3px; }

    .timeline-section { font-size: 14px; }
    .timeline-time-start,
    .timeline-time-end { font-size: 9px; }

    .schedule-days { gap: 3px; }

    .schedule-day-column {
        min-height: 480px;
    }

    .schedule-grid.has-evening .schedule-day-column {
        min-height: 587px;
    }

    .course-card {
        font-size: 10px;
        padding: 4px 3px;
    }

    .course-card-name {
        font-size: 10px;
        line-height: 1.2;
    }

    .course-card-location { font-size: 9px; }

    /* 事件卡片移动端 */
    .event-title { font-size: 20px; }
    .countdown { font-size: 32px; }

    /* 公告移动端 */
    .announcement-popup-content {
        max-height: 280px;
    }

    .announcement-popup-footer {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

    .announcement-item-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    /* 按钮移动端 */
    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .action-bar .btn-primary,
    .action-bar .btn-secondary {
        width: 100%;
    }

    .draft-actions {
        flex-direction: column;
        gap: 4px;
    }

    .draft-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .draft-actions {
        width: 100%;
        flex-direction: row;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .content-wrapper {
        padding: 20px;
    }
}

@media (min-width: 1025px) {
    .content-wrapper {
        padding: 24px 40px;
    }
}

/* ==================== 会员页面 ==================== */
.member-status-active {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 4px 0;
}

.member-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.member-badge-basic {
    background: linear-gradient(135deg, #a8edea, #6ec6c6);
    color: #1a5a5a;
}

.member-badge-advanced {
    background: linear-gradient(135deg, #f9d423, #f37335);
    color: #5a2e00;
}

.member-expire {
    font-size: 13px;
    color: var(--text-secondary);
}

.member-status-none,
.member-status-expired {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 4px 0;
}

.member-status-panel {
    margin-bottom: 14px;
}

.member-plans {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    align-items: stretch;
    margin-bottom: 16px;
}

.member-plan-card {
    background: var(--card-bg, #fff);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border: 1px solid var(--divider);
    position: relative;
    overflow: hidden;
    min-height: 360px;
}

.member-plan-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: #48b8b1;
}

.member-plan-advanced {
    border-color: rgba(243, 115, 53, 0.45);
}

.member-plan-advanced::before {
    background: #f37335;
}

.plan-recommend {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 3px 8px;
    border-radius: 6px;
    background: rgba(243, 115, 53, 0.12);
    color: #c6531c;
    font-size: 12px;
    font-weight: 700;
}

.plan-topline {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 24px;
    padding-right: 52px;
}

.plan-badge {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-primary);
}

.plan-badge-advanced {
    color: #c6531c;
}

.plan-tag {
    padding: 3px 7px;
    border-radius: 6px;
    background: rgba(72, 184, 177, 0.12);
    color: #20736d;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.plan-tag-advanced {
    background: rgba(243, 115, 53, 0.12);
    color: #c6531c;
}

.plan-title-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
}

.plan-name {
    font-size: 20px;
    line-height: 1.25;
    font-weight: 800;
    color: var(--text-primary);
}

.plan-desc {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.plan-price {
    min-width: 86px;
    text-align: right;
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    white-space: nowrap;
}

.price-num {
    font-size: 36px;
    line-height: 1;
}

.price-unit {
    display: block;
    margin-top: 3px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
}

.plan-feature-group {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    background: var(--bg-secondary);
}

.plan-feature-title {
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 800;
    color: var(--text-tertiary);
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.plan-features li {
    display: grid;
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 8px;
    align-items: start;
    font-size: 13px;
    line-height: 1.45;
    color: var(--text-secondary);
}

.plan-features li svg {
    width: 15px;
    height: 15px;
    margin-top: 2px;
    stroke: var(--success);
}

.plan-footer {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.plan-renew-note {
    font-size: 12px;
    color: var(--text-tertiary);
}

.btn-plan {
    width: 100%;
    min-height: 42px;
    padding: 11px 12px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.18s, opacity 0.18s, box-shadow 0.18s;
}

.btn-plan:hover {
    transform: translateY(-1px);
}

.btn-plan:active {
    opacity: 0.75;
    transform: translateY(0);
}

.btn-basic {
    background: #2f9f98;
    color: #fff;
    box-shadow: 0 8px 18px rgba(47, 159, 152, 0.22);
}

.btn-advanced {
    background: #e8642a;
    color: #fff;
    box-shadow: 0 8px 18px rgba(232, 100, 42, 0.24);
}


@media (max-width: 720px) {
    .member-plans {
        grid-template-columns: 1fr;
    }

    .member-plan-card {
        min-height: 0;
    }

    .plan-title-row {
        grid-template-columns: 1fr;
    }

    .plan-price {
        text-align: left;
    }

    .price-unit {
        display: inline;
        margin-left: 3px;
    }
}/* Payment method picker */
.pay-modal-card {
    max-width: 460px;
    padding: 30px;
}

.pay-modal-card .modal-desc {
    margin-bottom: 18px;
    line-height: 1.6;
}

.pay-section-title {
    margin: 4px 0 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
}

.pay-type-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 0 0 18px;
}

.pay-type-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 76px;
    padding: 12px;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.pay-type-option:hover {
    border-color: rgba(0, 122, 255, 0.38);
    transform: translateY(-1px);
}

.pay-type-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.pay-type-option-active {
    border-color: var(--accent);
    background: rgba(0, 122, 255, 0.08);
    box-shadow: 0 10px 24px rgba(0, 122, 255, 0.12);
}

.pay-type-option-active::after {
    content: "";
    position: absolute;
    right: 12px;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.pay-type-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    flex: 0 0 auto;
}

.pay-type-alipay {
    background: #1677ff;
}

.pay-type-wechat {
    background: #19be6b;
}

.pay-type-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.pay-type-copy strong {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.2;
}

.pay-type-copy small {
    font-size: 11px;
    line-height: 1.35;
    color: var(--text-tertiary);
}

.pay-confirm-btn {
    margin-top: 2px;
}

@media (max-width: 520px) {
    .pay-modal-card {
        padding: 24px;
    }

    .pay-type-options {
        grid-template-columns: 1fr;
    }
}


/* 订单列表 */
.orders-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: 10px;
}

.order-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.order-type {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.order-amount {
    font-size: 13px;
    color: var(--text-secondary);
}

.order-status {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
}

.order-status-paid {
    background: #d4f5e2;
    color: #1a7a3a;
}

.order-status-pending {
    background: #fff3cd;
    color: #856404;
}

.order-status-failed {
    background: #ffe0de;
    color: var(--error);
}

.order-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* ==================== 邀请收益 ==================== */
.inviter-info {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--divider);
}

.inviter-label {
    color: var(--text-tertiary);
}

.inviter-set-form {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 8px 0;
    border-bottom: 1px solid var(--divider);
}

.inviter-set-input {
    flex: 1;
    min-width: 140px;
    padding: 7px 10px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.inviter-set-input:focus {
    border-color: var(--accent);
}

.inviter-set-btn {
    padding: 7px 14px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}

.inviter-set-btn:hover {
    opacity: 0.85;
}

.inviter-set-error {
    width: 100%;
    font-size: 12px;
    color: var(--error);
}

.earnings-summary {
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 4px;
}

.earnings-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.earnings-row-total {
    border-top: 1px solid var(--divider);
    margin-top: 4px;
    padding-top: 9px;
    font-weight: 600;
    color: var(--text-primary);
}

.earnings-rate {
    color: var(--accent);
    font-weight: 600;
}

.earnings-total {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
}

.earnings-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.earnings-amount {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
}

.earnings-withdrawn {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-tertiary);
    padding-bottom: 4px;
}

.earnings-available {
    color: var(--accent);
    font-weight: 600;
}

.earnings-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.earning-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.earning-amount {
    font-weight: 600;
    color: var(--success);
    margin-left: auto;
}

.earning-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

.invite-hint {
    margin-top: 10px;
    padding: 8px 12px;
    background: #e8f4fd;
    border-radius: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

.invite-hint strong {
    color: var(--accent);
}

/* ==================== 提现 ==================== */
.btn-withdraw {
    padding: 5px 14px;
    border: none;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-withdraw:hover:not(:disabled) {
    opacity: 0.85;
}

.withdraw-available {
    margin-bottom: 12px;
}

.withdraw-amount-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.withdraw-available-amount {
    font-weight: 700;
    color: var(--accent);
    font-size: 16px;
}

.withdraw-history-title {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    padding-top: 8px;
    border-top: 1px solid var(--divider);
}

.withdraw-history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.withdraw-status {
    font-size: 11px;
    padding: 1px 8px;
    border-radius: 10px;
}

.withdraw-status-pending {
    background: #fff3cd;
    color: #856404;
}

.withdraw-status-approved {
    background: #d4f5e2;
    color: #1a7a3a;
}

.withdraw-status-rejected {
    background: #ffe0de;
    color: var(--error);
}

.withdraw-history-time {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-tertiary);
}

/* 登录弹窗邀请人字段 */
.label-optional {
    font-weight: 400;
    font-size: 12px;
    color: var(--text-tertiary);
}

@media (max-width: 480px) {
    .member-plans {
        grid-template-columns: 1fr;
    }
}

/* ==================== 论文生成 ==================== */
.paper-form-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.paper-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.paper-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.paper-form-col {
    min-width: 0;
}

.paper-label {
    font-size: var(--text-caption);
    font-weight: 600;
    color: var(--text-secondary);
}

.paper-required {
    color: var(--error);
}

.paper-hint {
    font-weight: 400;
    color: var(--text-tertiary);
}

.paper-input,
.paper-textarea,
.paper-select {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--text-body);
    box-sizing: border-box;
    transition: border-color 0.2s;
    outline: none;
    font-family: inherit;
}

.paper-input:focus,
.paper-textarea:focus,
.paper-select:focus {
    border-color: var(--accent);
}

.paper-textarea {
    resize: vertical;
    min-height: 72px;
}

.paper-sections-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 6px;
}

.paper-section-item {
    display: flex;
    gap: 8px;
    align-items: center;
}

.paper-section-input {
    flex: 1;
}

.paper-remove-section-btn {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: var(--bg-tertiary, #f0f0f0);
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}

.paper-remove-section-btn:hover {
    background: #ffe0de;
    color: var(--error);
}

.paper-add-section-btn {
    align-self: flex-start;
    padding: 7px 14px;
    border: 1.5px dashed var(--border);
    border-radius: 8px;
    background: transparent;
    color: var(--accent);
    font-size: var(--text-caption);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.paper-add-section-btn:hover {
    border-color: var(--accent);
    background: var(--bg-secondary);
}

.paper-error {
    padding: 10px 14px;
    border-radius: 8px;
    background: #ffe0de;
    color: var(--error);
    font-size: var(--text-caption);
}

.paper-submit-btn {
    margin-top: 4px;
}

.paper-status {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    margin-bottom: 4px;
}

.paper-status-icon {
    color: var(--accent);
}

.paper-spinner {
    width: 32px;
    height: 32px;
    animation: paper-spin 1s linear infinite;
}

@keyframes paper-spin {
    to { transform: rotate(360deg); }
}

.paper-status-text {
    font-size: var(--text-body);
    font-weight: 500;
    color: var(--text-primary);
}

.paper-status-hint {
    font-size: var(--text-caption);
    color: var(--text-tertiary);
}

/* 论文任务队列 */
.paper-queue {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.paper-job-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: border-color 0.3s;
}

.paper-job-card.paper-job-done {
    border-color: var(--success, #52c41a);
}

.paper-job-card.paper-job-failed {
    border-color: var(--error);
}

.paper-job-left {
    flex-shrink: 0;
    color: var(--accent);
}

.paper-job-spinner {
    width: 22px;
    height: 22px;
    animation: paper-spin 1s linear infinite;
}

.paper-job-done .paper-job-left {
    color: var(--success, #52c41a);
}

.paper-job-failed .paper-job-left {
    color: var(--error);
}

.paper-job-body {
    flex: 1;
    min-width: 0;
}

.paper-job-topic {
    font-size: var(--text-body);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.paper-job-status-text {
    font-size: var(--text-caption);
    color: var(--text-secondary);
}

.paper-job-elapsed {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

.paper-job-action {
    flex-shrink: 0;
}

.paper-job-dl-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: var(--text-caption);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: opacity 0.2s;
}

.paper-job-dl-btn:hover {
    opacity: 0.85;
}

@media (max-width: 480px) {
    .paper-form-row {
        grid-template-columns: 1fr;
    }
}

/* ==================== 暂时不绑定按钮 ==================== */
.btn-skip-bind {
    display: block;
    width: 100%;
    margin-top: 14px;
    padding: 0;
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: var(--text-caption);
    text-align: center;
    cursor: pointer;
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: color 0.2s;
}

.btn-skip-bind:hover {
    color: var(--text-secondary);
}

/* ==================== 偷懒工具 ==================== */
.tools-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    text-decoration: none;
    transition: all var(--duration) var(--ease);
}

.tool-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.tool-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tool-card-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
}

.tool-card-body {
    flex: 1;
}

.tool-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tool-card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.tool-card-arrow {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke: var(--text-tertiary);
}

/* ==================== 页面底部备案 ==================== */
.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 6px 0;
    background: var(--bg-secondary);
    z-index: 50;
}

.site-footer a {
    font-size: 12px;
    color: var(--text-tertiary);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--text-secondary);
    text-decoration: underline;
}

/* ==================== 页面质感收口 ==================== */
body {
    background: #f5f6f8;
}

.content-wrapper {
    max-width: 1120px;
    margin: 0 auto;
    padding: 52px 24px 80px;
}

.page h2 {
    font-size: 26px;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 8px;
}

.page-section-desc {
    margin-bottom: 20px;
    color: var(--text-tertiary);
}

.urgent-card,
.schedule-container,
.exams-container,
.evaluation-container,
.announcements-container,
.surveys-container,
.feedback-container,
.member-container {
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.06);
}

/* 成绩查询恢复为功能卡片入口 */
.grades-dashboard {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0;
    display: grid;
    grid-template-columns: minmax(620px, 852px);
    align-items: start;
    gap: 14px;
}

.grades-dashboard-main {
    width: 100%;
}

.grades-dashboard-main h2 {
    margin: 0 0 6px;
    font-size: 28px;
    font-weight: 750;
}

.grades-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding-top: 4px;
}

.grades-card-grid .grade-action-btn {
    min-height: 126px;
    padding: 22px 20px 18px;
    border-radius: 14px;
    border: 1px solid #d6d8de;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: none;
    gap: 8px;
}

.grades-card-grid .grade-action-btn:hover {
    border-color: rgba(0, 122, 255, 0.45);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
    transform: translateY(-1px);
}

.grades-card-grid .grade-action-btn svg {
    width: 28px;
    height: 28px;
    margin-bottom: 6px;
    stroke: #0a84ff;
}

.grades-card-grid .grade-action-btn-warn svg {
    stroke: #ff3b30;
}

.grades-card-grid .grade-action-btn-accent svg {
    stroke: #22c55e;
}

.grades-card-grid .grade-action-label {
    font-size: 16px;
    font-weight: 700;
    color: #1d1d1f;
}

.grades-card-grid .grade-action-desc {
    font-size: 13px;
    color: #8a8f98;
}

.grades-result {
    margin-top: 20px;
}


@media (max-width: 980px) {
    .grades-dashboard {
        grid-template-columns: 1fr;
        gap: 18px;
    }
}

@media (max-width: 680px) {
    .content-wrapper {
        padding: 28px 14px 64px;
    }
    .grades-dashboard-main h2 {
        font-size: 24px;
    }
    .grades-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }
    .grades-card-grid .grade-action-btn {
        min-height: 112px;
        padding: 14px 10px 12px;
        gap: 5px;
    }
    .grades-card-grid .grade-action-btn svg {
        width: 24px;
        height: 24px;
        margin-bottom: 3px;
    }
    .grades-card-grid .grade-action-label {
        font-size: 14px;
        line-height: 1.25;
    }
    .grades-card-grid .grade-action-desc {
        font-size: 11px;
        line-height: 1.35;
    }
}

/* 成绩查询页面居中 */
#page-grades {
    width: 100%;
}

#page-grades .grades-dashboard {
    max-width: 980px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: minmax(0, 852px);
    justify-content: center;
}

#page-grades .grades-dashboard-main {
    width: 100%;
    margin: 0 auto;
}

#page-grades .grades-card-grid {
    width: 100%;
}

/* 课程表底部周次控制 */
.schedule-bottom-controls {
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 22px;
}

.week-select-wrap {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 10px 0 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-secondary);
    font-size: 14px;
    white-space: nowrap;
}

.week-select-wrap select {
    height: 30px;
    min-width: 82px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.schedule-bottom-controls .current-week {
    min-width: 64px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

@media (max-width: 680px) {
    .schedule-bottom-controls {
        justify-content: stretch;
    }
    .schedule-bottom-controls > *,
    .schedule-bottom-controls .btn-primary,
    .schedule-bottom-controls .btn-secondary,
    .schedule-bottom-controls .week-select-wrap {
        flex: 1 1 calc(50% - 8px);
    }
    .schedule-bottom-controls .current-week {
        flex-basis: 100%;
        order: -1;
    }
}

/* 会员页面：克制版套餐卡片 */
#page-member .member-container {
    max-width: 980px;
    margin: 0 auto;
    padding: 28px;
    background: rgba(255, 255, 255, 0.92);
}

.member-page-head h2 {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 750;
    color: var(--text-primary);
}

#page-member .page-section-desc {
    margin: 0 0 18px;
    color: var(--text-secondary);
    line-height: 1.6;
}

#page-member .member-status-panel,
#page-member .active-pay-links,
#page-member .member-orders-content,
#page-member .invitation-card {
    border: 1px solid #e4e7ec;
    border-radius: 12px;
    background: #fff;
    box-shadow: none;
}

#page-member .member-status-panel {
    padding: 16px 18px;
    margin-bottom: 16px;
}

#page-member .member-plans {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 0 0 16px;
}

#page-member .member-plan-card {
    min-height: 0;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #dfe3ea;
    background: #fff;
    box-shadow: none;
    gap: 16px;
}

#page-member .member-plan-card::before {
    height: 3px;
    background: #0a84ff;
}

#page-member .member-plan-advanced {
    border-color: #dfe3ea;
}

#page-member .member-plan-advanced::before {
    background: #22a06b;
}

.member-plan-kicker {
    width: fit-content;
    padding: 4px 8px;
    border-radius: 6px;
    background: #f2f6ff;
    color: #0a66d8;
    font-size: 12px;
    font-weight: 700;
}

.member-plan-advanced .member-plan-kicker {
    background: #edf8f2;
    color: #168653;
}

.member-plan-title-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: start;
}

#page-member .member-plan-card h3 {
    margin: 0;
    font-size: 21px;
    line-height: 1.25;
    font-weight: 780;
    color: var(--text-primary);
}

.member-plan-desc {
    margin: 8px 0 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.55;
}

#page-member .member-plan-price {
    margin: 0;
    min-width: 110px;
    text-align: right;
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 800;
    white-space: nowrap;
}

#page-member .member-plan-price span {
    display: block;
    margin-top: 4px;
    color: var(--text-tertiary);
    font-size: 12px;
    font-weight: 600;
}

.member-plan-list {
    display: grid;
    gap: 9px;
    margin: 0;
    padding: 14px 14px 14px 30px;
    border-radius: 10px;
    background: #f7f8fa;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.member-plan-list li::marker {
    color: #0a84ff;
}

.member-plan-advanced .member-plan-list li::marker {
    color: #22a06b;
}

#page-member .member-plan-card .btn-primary {
    margin-top: auto;
    height: 44px;
    border-radius: 10px;
}

#page-member .active-pay-links,
#page-member .member-orders-content,
#page-member .invitation-card {
    margin-top: 14px;
    padding: 16px 18px;
}

#page-member .invitation-card h3 {
    margin: 0 0 12px;
    font-size: 18px;
}

@media (max-width: 760px) {
    #page-member .member-container {
        padding: 20px;
    }

    #page-member .member-plans {
        grid-template-columns: 1fr;
    }

    .member-plan-title-row {
        grid-template-columns: 1fr;
    }

    #page-member .member-plan-price {
        text-align: left;
    }
}

/* 绑定账号弹窗 */
#login-modal .login-card {
    width: min(92vw, 500px);
    max-width: 500px;
    padding: 30px;
    border-radius: 18px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.18);
}

.login-header {
    margin-bottom: 20px;
}

.login-header h2 {
    margin: 0 0 8px;
    font-size: 24px;
    font-weight: 760;
    letter-spacing: 0;
}

#login-modal .modal-desc {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

#login-modal .login-close {
    top: 18px;
    right: 18px;
}


.login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.login-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

#login-modal .form-group {
    margin: 0;
}

#login-modal .form-group-wide {
    grid-column: 1 / -1;
}

#login-modal .form-group label {
    margin-bottom: 7px;
    font-size: 14px;
    font-weight: 650;
    color: var(--text-primary);
}

#login-modal .form-group input {
    height: 46px;
    border-radius: 12px;
    background: #fff;
}

#login-modal .form-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.12);
}

.login-actions {
    display: grid;
    gap: 10px;
    padding-top: 2px;
}

#login-modal .login-actions .btn-primary {
    height: 46px;
    border-radius: 12px;
    font-weight: 650;
}

#login-modal .error-message {
    margin-top: 14px;
}

@media (max-width: 560px) {
    #login-modal .login-card {
        padding: 24px 20px;
    }

    .login-field-grid {
        grid-template-columns: 1fr;
    }
}


/* 首页紧急事项刷新按钮优化 */
.urgent-header .refresh-btn {
    width: auto;
    min-width: 76px;
    height: 34px;
    padding: 0 12px 0 10px;
    gap: 6px;
    border: 1px solid rgba(0, 122, 255, 0.16);
    border-radius: 999px;
    background: rgba(0, 122, 255, 0.07);
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    box-shadow: 0 6px 16px rgba(0, 122, 255, 0.08);
}

.urgent-header .refresh-btn:hover {
    background: rgba(0, 122, 255, 0.12);
    border-color: rgba(0, 122, 255, 0.28);
    color: var(--accent-hover);
    transform: translateY(-1px);
}

.urgent-header .refresh-btn svg {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
    transition: transform 0.45s var(--ease);
}

.urgent-header .refresh-btn:hover svg,
.urgent-header .refresh-btn:active svg {
    transform: rotate(180deg);
}

.urgent-header .refresh-btn span {
    white-space: nowrap;
}

@media (max-width: 420px) {
    .urgent-header {
        gap: 10px;
    }

    .urgent-header .refresh-btn {
        min-width: 34px;
        width: 34px;
        padding: 0;
    }

    .urgent-header .refresh-btn span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }
}