/**
 * DualTry - Main Stylesheet
 * 亮色主题 + 拟物化风格
 */

/* ==================== CSS Variables ==================== */
:root {
    --dut-primary-mqxzpl: #4A90D9;
    --dut-primary-dark-hjwqrt: #3A7BC8;
    --dut-primary-light-pknmfg: #E8F1FA;
    --dut-secondary-xzrtlk: #6C757D;
    --dut-success-wqfmhj: #28A745;
    --dut-warning-mnplkx: #F5A623;
    --dut-danger-rtfgqw: #DC3545;
    
    --dut-bg-lkmjnp: #F0F2F5;
    --dut-bg-card-fghjxz: #FFFFFF;
    --dut-text-qwrtmn: #333333;
    --dut-text-muted-mqxzrt: #888888;
    --dut-border-hjwqmn: #D0D5DD;
    
    --dut-radius-pknmwq: 16px;
    --dut-radius-sm-xzrtmn: 10px;
    
    /* 拟物化阴影 */
    --dut-shadow-wqfmpl: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --dut-shadow-lg-mnplrt: 0 8px 24px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
    --dut-shadow-inset-lkmjfg: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    --dut-shadow-button-rtfgwq: 0 4px 8px rgba(74, 144, 217, 0.3);
    
    --dut-spacing-xzwqfm: 16px;
    --dut-spacing-sm-mnhjrt: 8px;
    --dut-spacing-lg-pqrtfg: 24px;
    
    --dut-font-lkmjwq: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ==================== Base Styles ==================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    /* 确保背景覆盖整个视口，包括弹性滚动区域 */
    background-color: #F0F2F5;
    min-height: 100%;
    height: 100%;
}

body {
    font-family: var(--dut-font-lkmjwq);
    font-size: 16px;
    line-height: 1.5;
    color: var(--dut-text-qwrtmn);
    background: linear-gradient(180deg, #F0F2F5 0%, #E8EAED 100%);
    min-height: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 隐藏滚动条 - iOS 原生风格 */
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
    /* 防止 overscroll 时显示不同颜色 */
    overscroll-behavior: none;
}

/* 隐藏所有滚动条 */
::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

body {
    /* 不在 body 上设置 safe area padding，由各页面单独处理 */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

/* ==================== Typography ==================== */
.dut-title-mqxzpl {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--dut-spacing-xzwqfm);
    color: var(--dut-text-qwrtmn);
}

.dut-subtitle-hjwqrt {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
    color: var(--dut-text-qwrtmn);
}

.dut-text-muted-pknmfg {
    color: var(--dut-text-muted-mqxzrt);
    font-size: 14px;
}

/* ==================== Layout ==================== */
.dut-container-xzrtlk {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--dut-spacing-xzwqfm);
    padding-left: calc(var(--dut-spacing-xzwqfm) + env(safe-area-inset-left));
    padding-right: calc(var(--dut-spacing-xzwqfm) + env(safe-area-inset-right));
    /* 顶部 padding 补偿固定的 header（约 60px header + safe area） */
    padding-top: calc(env(safe-area-inset-top) + 70px);
}

.dut-header-wqfmhj {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--dut-spacing-xzwqfm);
    /* 顶部留出刘海安全区域 */
    padding-top: calc(env(safe-area-inset-top) + 12px);
    padding-left: calc(var(--dut-spacing-xzwqfm) + env(safe-area-inset-left));
    padding-right: calc(var(--dut-spacing-xzwqfm) + env(safe-area-inset-right));
    /* iOS 原生风格：毛玻璃效果 */
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid rgba(0, 0, 0, 0.1);
    /* 固定定位，不随页面滚动 */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.dut-page-mnplkx {
    display: none;
    padding: 0;
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
    min-height: 100vh;
    /* 让页面内容可滚动但不显示滚动条 */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.dut-page-mnplkx.dut-active-rtfgqw {
    display: block;
}

/* ==================== Cards - 拟物化风格 ==================== */
.dut-card-lkmjnp {
    background: linear-gradient(180deg, #FFFFFF 0%, #FAFBFC 100%);
    border-radius: var(--dut-radius-pknmwq);
    box-shadow: var(--dut-shadow-wqfmpl);
    border: 1px solid rgba(255, 255, 255, 0.8);
    padding: var(--dut-spacing-xzwqfm);
    margin-bottom: var(--dut-spacing-xzwqfm);
    transition: all 0.2s ease;
}

.dut-card-lkmjnp:active {
    transform: scale(0.98);
    box-shadow: var(--dut-shadow-inset-lkmjfg);
}

.dut-trial-card-fghjxz {
    cursor: pointer;
    border: 1px solid var(--dut-border-hjwqmn);
}

.dut-trial-card-fghjxz:hover {
    box-shadow: var(--dut-shadow-lg-mnplrt);
    transform: translateY(-2px);
}

.dut-trial-card-fghjxz .dut-card-header-qwrtmn {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
}

.dut-trial-card-fghjxz .dut-card-title-mqxzrt {
    font-size: 18px;
    font-weight: 600;
    flex: 1;
    color: var(--dut-text-qwrtmn);
}

.dut-trial-card-fghjxz .dut-card-desc-hjwqmn {
    color: var(--dut-text-muted-mqxzrt);
    font-size: 14px;
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
}

.dut-trial-card-fghjxz .dut-card-footer-pknmwq {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--dut-text-muted-mqxzrt);
}

/* ==================== Status Badge - 拟物化 ==================== */
.dut-badge-xzrtmn {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.dut-badge-ongoing-wqfmpl {
    background: linear-gradient(180deg, #E8F4FD 0%, #D4EBFC 100%);
    color: #2563EB;
    border: 1px solid #BFDBFE;
}

.dut-badge-completed-mnplrt {
    background: linear-gradient(180deg, #ECFDF5 0%, #D1FAE5 100%);
    color: #059669;
    border: 1px solid #A7F3D0;
}

/* ==================== Buttons - 拟物化风格 ==================== */
.dut-btn-lkmjfg {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--dut-radius-sm-xzrtmn);
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.dut-btn-primary-rtfgwq {
    background: linear-gradient(180deg, #5B9AE0 0%, #4A90D9 50%, #3A7BC8 100%);
    color: #FFFFFF;
    box-shadow: var(--dut-shadow-button-rtfgwq), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 1px solid #3A7BC8;
}

.dut-btn-primary-rtfgwq:hover {
    background: linear-gradient(180deg, #6BA5E5 0%, #5B9AE0 50%, #4A90D9 100%);
}

.dut-btn-primary-rtfgwq:active {
    background: linear-gradient(180deg, #3A7BC8 0%, #4A90D9 100%);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.dut-btn-secondary-xzwqpl {
    background: linear-gradient(180deg, #FFFFFF 0%, #F5F5F5 100%);
    color: var(--dut-primary-mqxzpl);
    border: 1px solid var(--dut-border-hjwqmn);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.dut-btn-secondary-xzwqpl:hover {
    background: linear-gradient(180deg, #FFFFFF 0%, #F0F0F0 100%);
}

.dut-btn-secondary-xzwqpl:active {
    background: linear-gradient(180deg, #F0F0F0 0%, #E8E8E8 100%);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.08);
}

.dut-btn-full-mnhjrt {
    width: 100%;
}

.dut-btn-fab-pqrtfg {
    position: fixed;
    bottom: calc(90px + env(safe-area-inset-bottom));
    right: calc(var(--dut-spacing-xzwqfm) + env(safe-area-inset-right));
    width: 56px;
    height: 56px;
    border-radius: 28px;
    background: linear-gradient(180deg, #5B9AE0 0%, #4A90D9 50%, #3A7BC8 100%);
    color: #FFFFFF;
    font-size: 26px;
    box-shadow: 0 4px 14px rgba(74, 144, 217, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: none;
    z-index: 50;
}

.dut-btn-fab-pqrtfg:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.5);
}

.dut-btn-fab-pqrtfg:active {
    transform: scale(0.95);
}

/* ==================== Form Elements - 拟物化 ==================== */
.dut-input-group-lkmjwq {
    margin-bottom: var(--dut-spacing-xzwqfm);
}

.dut-label-xzwqpl {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
    color: var(--dut-text-qwrtmn);
}

.dut-input-mnhjxz {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--dut-border-hjwqmn);
    border-radius: var(--dut-radius-sm-xzrtmn);
    font-size: 16px;
    background: linear-gradient(180deg, #FAFAFA 0%, #FFFFFF 100%);
    color: var(--dut-text-qwrtmn);
    box-shadow: var(--dut-shadow-inset-lkmjfg);
    transition: all 0.2s ease;
}

.dut-input-mnhjxz:focus {
    outline: none;
    border-color: var(--dut-primary-mqxzpl);
    box-shadow: var(--dut-shadow-inset-lkmjfg), 0 0 0 3px rgba(74, 144, 217, 0.15);
}

.dut-input-mnhjxz::placeholder {
    color: #AAAAAA;
}

.dut-textarea-pqrtmn {
    min-height: 100px;
    resize: vertical;
}

/* ==================== Variable Card - 拟物化 ==================== */
.dut-variable-card-lkmjfg {
    background: linear-gradient(180deg, #FFFFFF 0%, #FAFBFC 100%);
    border: 2px solid var(--dut-border-hjwqmn);
    border-radius: var(--dut-radius-pknmwq);
    padding: var(--dut-spacing-xzwqfm);
    margin-bottom: var(--dut-spacing-xzwqfm);
    box-shadow: var(--dut-shadow-wqfmpl);
}

.dut-variable-card-lkmjfg.dut-type-a-rtfgwq {
    border-color: var(--dut-primary-mqxzpl);
    background: linear-gradient(180deg, #FFFFFF 0%, #F5F9FE 100%);
}

.dut-variable-card-lkmjfg.dut-type-b-xzwqfm {
    border-color: var(--dut-warning-mnplkx);
    background: linear-gradient(180deg, #FFFFFF 0%, #FFFBF5 100%);
}

.dut-variable-header-mnhjrt {
    display: flex;
    align-items: center;
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
}

.dut-variable-label-pqrtfg {
    font-size: 14px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 6px;
    margin-right: var(--dut-spacing-sm-mnhjrt);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.dut-type-a-rtfgwq .dut-variable-label-pqrtfg {
    background: linear-gradient(180deg, #5B9AE0 0%, #4A90D9 100%);
    color: #FFFFFF;
}

.dut-type-b-xzwqfm .dut-variable-label-pqrtfg {
    background: linear-gradient(180deg, #F7B84D 0%, #F5A623 100%);
    color: #FFFFFF;
}

/* ==================== Media Controls - 拟物化 ==================== */
.dut-media-controls-lkmjwq {
    display: flex;
    gap: var(--dut-spacing-sm-mnhjrt);
    margin-top: var(--dut-spacing-sm-mnhjrt);
}

.dut-media-btn-xzwqpl {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F5F5F5 100%);
    border: 2px dashed var(--dut-border-hjwqmn);
    border-radius: var(--dut-radius-sm-xzrtmn);
    cursor: pointer;
    transition: all 0.2s ease;
}

.dut-media-btn-xzwqpl:hover {
    border-color: var(--dut-primary-mqxzpl);
    background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
    box-shadow: 0 4px 8px rgba(74, 144, 217, 0.15);
}

.dut-media-btn-xzwqpl:active {
    background: linear-gradient(180deg, #F0F0F0 0%, #E8E8E8 100%);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.dut-media-btn-xzwqpl i {
    font-size: 24px;
    margin-bottom: 4px;
    color: var(--dut-text-muted-mqxzrt);
}

.dut-media-btn-xzwqpl span {
    font-size: 12px;
    color: var(--dut-text-muted-mqxzrt);
    font-weight: 500;
}

.dut-photo-preview-mnhjxz {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: var(--dut-radius-sm-xzrtmn);
    margin-top: var(--dut-spacing-sm-mnhjrt);
    box-shadow: var(--dut-shadow-wqfmpl);
    border: 1px solid var(--dut-border-hjwqmn);
}

/* ==================== Timer - 拟物化 ==================== */
.dut-timer-display-pqrtmn {
    text-align: center;
    padding: var(--dut-spacing-lg-pqrtfg);
    background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
    border-radius: var(--dut-radius-pknmwq);
    box-shadow: var(--dut-shadow-inset-lkmjfg);
}

.dut-timer-value-lkmjfg {
    font-size: 64px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--dut-primary-mqxzpl);
    text-shadow: 0 2px 4px rgba(74, 144, 217, 0.2);
}

.dut-timer-label-rtfgwq {
    font-size: 14px;
    color: var(--dut-text-muted-mqxzrt);
    margin-top: var(--dut-spacing-sm-mnhjrt);
    font-weight: 500;
}

.dut-timer-controls-xzwqfm {
    display: flex;
    gap: var(--dut-spacing-sm-mnhjrt);
    margin-top: var(--dut-spacing-xzwqfm);
}

.dut-timer-controls-xzwqfm .dut-btn-lkmjfg {
    flex: 1;
}

/* ==================== Bottom Navigation - 拟物化 ==================== */
.dut-bottom-nav-mnhjrt {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    /* iOS 原生风格：毛玻璃效果 */
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-top: 0.5px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.04);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    z-index: 100;
}

.dut-nav-item-pqrtfg {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 0;
    color: var(--dut-text-muted-mqxzrt);
    text-decoration: none;
    font-size: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.2s ease;
}

.dut-nav-item-pqrtfg i {
    font-size: 22px;
    margin-bottom: 4px;
}

.dut-nav-item-pqrtfg.dut-active-rtfgqw {
    color: var(--dut-primary-mqxzpl);
}

.dut-nav-item-pqrtfg.dut-active-rtfgqw i {
    text-shadow: 0 2px 4px rgba(74, 144, 217, 0.3);
}

/* ==================== Empty State ==================== */
.dut-empty-state-lkmjwq {
    text-align: center;
    padding: var(--dut-spacing-lg-pqrtfg) var(--dut-spacing-xzwqfm);
}

.dut-empty-state-lkmjwq i {
    font-size: 56px;
    color: #CCCCCC;
    margin-bottom: var(--dut-spacing-xzwqfm);
}

.dut-empty-state-lkmjwq p {
    color: var(--dut-text-muted-mqxzrt);
    font-size: 15px;
    line-height: 1.6;
}

/* ==================== Loading ==================== */
.dut-loading-xzwqpl {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--dut-spacing-lg-pqrtfg);
}

.dut-spinner-mnhjxz {
    width: 36px;
    height: 36px;
    border: 4px solid #E0E0E0;
    border-top-color: var(--dut-primary-mqxzpl);
    border-radius: 50%;
    animation: dut-spin-pqrtmn 0.8s linear infinite;
}

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

/* ==================== Modal - iOS 原生风格 ==================== */
.dut-modal-overlay-lkmjfg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease;
    /* 处理 safe area */
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.dut-modal-overlay-lkmjfg.dut-visible-rtfgwq {
    opacity: 1;
    visibility: visible;
}

.dut-modal-content-xzwqfm {
    background: #FFFFFF;
    border-radius: 14px;
    width: calc(100% - 32px);
    max-width: 320px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    transform: scale(0.95);
    transition: transform 0.25s ease;
}

.dut-modal-overlay-lkmjfg.dut-visible-rtfgwq .dut-modal-content-xzwqfm {
    transform: scale(1);
}

/* ==================== Premium Card - 拟物化金色 ==================== */
#dut-premium-card-pqrtfg {
    background: linear-gradient(135deg, #FFF9E6 0%, #FFF3CC 50%, #FFE699 100%);
    border: 2px solid #F5C542;
    box-shadow: 0 4px 16px rgba(245, 197, 66, 0.3);
}

#dut-premium-card-pqrtfg i {
    color: #D4A012 !important;
    text-shadow: 0 2px 4px rgba(212, 160, 18, 0.3);
}

/* ==================== Utilities ==================== */
.dut-flex-mnhjrt {
    display: flex;
}

.dut-flex-center-pqrtfg {
    display: flex;
    align-items: center;
    justify-content: center;
}

.dut-gap-sm-lkmjwq {
    gap: var(--dut-spacing-sm-mnhjrt);
}

.dut-gap-md-xzwqpl {
    gap: var(--dut-spacing-xzwqfm);
}

.dut-mt-sm-mnhjxz {
    margin-top: var(--dut-spacing-sm-mnhjrt);
}

.dut-mt-md-pqrtmn {
    margin-top: var(--dut-spacing-xzwqfm);
}

.dut-mb-sm-lkmjfg {
    margin-bottom: var(--dut-spacing-sm-mnhjrt);
}

.dut-mb-md-rtfgwq {
    margin-bottom: var(--dut-spacing-xzwqfm);
}

.dut-text-center-xzwqfm {
    text-align: center;
}

.dut-hidden-mnhjrt {
    display: none !important;
}

/* ==================== Switch Toggle - 拟物化 ==================== */
.dut-switch-xzwqfm {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.dut-switch-xzwqfm input {
    opacity: 0;
    width: 0;
    height: 0;
}

.dut-slider-pqrtfg {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, #E0E0E0 0%, #D0D0D0 100%);
    border-radius: 28px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: 0.3s;
}

.dut-slider-pqrtfg:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F0F0F0 100%);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: 0.3s;
}

.dut-switch-xzwqfm input:checked + .dut-slider-pqrtfg {
    background: linear-gradient(180deg, #5B9AE0 0%, #4A90D9 100%);
}

.dut-switch-xzwqfm input:checked + .dut-slider-pqrtfg:before {
    transform: translateX(24px);
}

/* ==================== Preset Buttons ==================== */
.dut-preset-btn-mnhjrt {
    padding: 10px 16px !important;
    font-size: 14px !important;
}

/* ==================== Multi-Variable Styles ==================== */
.dut-type-multi-rtfgwq {
    border-color: var(--dut-primary-mqxzpl);
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFD 100%);
}

.dut-type-multi-rtfgwq .dut-variable-label-pqrtfg {
    background: linear-gradient(180deg, #5B9AE0 0%, #4A90D9 100%);
    color: #FFFFFF;
}

.dut-multi-label-xzwqfm {
    min-width: 32px;
    text-align: center;
}

.dut-var-label-input-mnhjrt {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--dut-border-hjwqmn);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    margin-left: 8px;
    max-width: 100px;
    background: linear-gradient(180deg, #FAFAFA 0%, #FFFFFF 100%);
    box-shadow: var(--dut-shadow-inset-lkmjfg);
}

.dut-var-label-input-mnhjrt:focus {
    outline: none;
    border-color: var(--dut-primary-mqxzpl);
}

.dut-var-remove-btn-pqrtfg {
    margin-left: auto;
    padding: 6px 10px;
    background: none;
    border: none;
    color: var(--dut-danger-rtfgqw);
    cursor: pointer;
    font-size: 16px;
    border-radius: 6px;
    transition: background 0.2s;
}

.dut-var-remove-btn-pqrtfg:hover {
    background: rgba(220, 53, 69, 0.1);
}

.dut-var-count-badge-xzwqfm {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(180deg, #E8F1FA 0%, #D4E7F7 100%);
    color: var(--dut-primary-mqxzpl);
    font-size: 11px;
    font-weight: 600;
    border-radius: 12px;
    margin-left: 8px;
}

/* ==================== Select Dropdown ==================== */
.dut-select-pqrtfg {
    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='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px !important;
}

/* ==================== Danger Button ==================== */
.dut-btn-danger-rtfgwq {
    background: linear-gradient(180deg, #E74C3C 0%, #DC3545 50%, #C0392B 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 8px rgba(220, 53, 69, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border: 1px solid #C0392B;
}

.dut-btn-danger-rtfgwq:hover {
    background: linear-gradient(180deg, #EC5E50 0%, #E74C3C 50%, #DC3545 100%);
}

.dut-btn-danger-rtfgwq:active {
    background: linear-gradient(180deg, #C0392B 0%, #DC3545 100%);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ==================== Action Menu ==================== */
.dut-action-menu-item-xzwqfm {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 14px 16px;
    background: none;
    border: none;
    font-size: 16px;
    text-align: left;
    cursor: pointer;
    border-radius: var(--dut-radius-sm-xzrtmn);
    transition: background 0.2s;
}

.dut-action-menu-item-xzwqfm:hover {
    background: rgba(0, 0, 0, 0.05);
}

.dut-action-menu-item-xzwqfm i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

/* ==================== Timer Enhanced Display ==================== */
.dut-timer-value-lkmjfg {
    font-size: 56px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--dut-primary-mqxzpl);
    text-shadow: 0 2px 4px rgba(74, 144, 217, 0.2);
    letter-spacing: 2px;
}

/* ==================== Variable Card in Insight ==================== */
.dut-variable-card-lkmjfg p {
    margin-top: var(--dut-spacing-sm-mnhjrt);
    color: var(--dut-text-qwrtmn);
    line-height: 1.5;
}

/* ==================== Multi-Test Winner Buttons ==================== */
.dut-multi-winner-btn-xzwqfm {
    margin-bottom: 8px;
}

/* ==================== 4-Tab Bottom Navigation ==================== */
.dut-bottom-nav-mnhjrt {
    justify-content: space-around;
}

.dut-nav-item-pqrtfg {
    flex: 1;
    padding: 8px 0;
}

.dut-nav-item-pqrtfg span {
    font-size: 10px;
}

/* ==================== iOS Native Enhancements ==================== */

/* 禁用长按弹出菜单 */
* {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* 输入框允许选择 */
input, textarea {
    -webkit-user-select: text;
    user-select: text;
}

/* 禁用点击高亮 */
* {
    -webkit-tap-highlight-color: transparent;
}

/* 让按钮点击响应更快 */
button, .dut-btn-lkmjfg, .dut-nav-item-pqrtfg, .dut-trial-card-fghjxz {
    touch-action: manipulation;
}

/* iOS 风格的列表分隔线 */
.dut-trial-card-fghjxz {
    margin-bottom: 12px;
    border-radius: 12px;
}

/* iOS 风格的输入框 */
.dut-input-mnhjxz {
    border-radius: 10px;
    font-size: 17px;
}

/* iOS 风格的按钮 */
.dut-btn-lkmjfg {
    font-size: 17px;
    font-weight: 500;
    border-radius: 10px;
}

/* 页面标题居中风格 */
.dut-header-wqfmhj .dut-subtitle-hjwqrt {
    font-size: 17px;
    font-weight: 600;
}

.dut-header-wqfmhj .dut-title-mqxzpl {
    font-size: 34px;
    font-weight: 700;
}