/**
 * 交互式麦克风连接配置器 - 样式文件
 * 浅色系主题，大气简约设计
 */

/* ============== 基础重置与变量 ============== */
:root {
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-green: #22c55e;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --font-main: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background: var(--bg-light);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============== 主布局 ============== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============== 顶部标题栏 ============== */
.header {
    padding: 24px 32px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-hint {
    color: var(--accent-blue);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ============== 主内容区 ============== */
.main-content {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 40px;
    overflow-y: auto;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ============== 连接链路图 ============== */
.connection-chain {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    padding: 20px 0;
}

/* ============== 步骤卡片 ============== */
.chain-step {
    display: flex;
    flex-direction: column;
    min-width: 240px;
    max-width: 280px;
}

.step-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-bottom: none;
    border-radius: 16px 16px 0 0;
    box-shadow: var(--shadow-sm);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--accent-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.host-step .step-number {
    background: var(--accent-purple);
}

.step-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.step-desc {
    font-size: 1rem;
    color: var(--text-muted);
}

.step-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ============== 设备插槽 ============== */
.device-slot {
    flex: 1;
    min-height: 180px;
    background: var(--bg-card);
    border: 3px dashed var(--border-color);
    border-radius: 0 0 16px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.device-slot:hover {
    border-color: var(--accent-blue);
    background: #eff6ff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.slot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.6;
}

.placeholder-text {
    font-size: 1.1rem;
    font-weight: 500;
}

/* 已选择的设备 */
.device-slot.selected {
    border-style: solid;
    border-color: var(--accent-green);
    background: #f0fdf4;
}

.selected-device {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    width: 100%;
}

.selected-device .device-icon {
    font-size: 3.5rem;
}

.selected-device .device-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
}

.selected-device .device-port {
    font-size: 1rem;
    color: var(--accent-green);
    background: rgba(34, 197, 94, 0.15);
    padding: 8px 16px;
    border-radius: 25px;
    font-weight: 500;
}

.selected-device .device-extra {
    font-size: 0.9rem;
    color: var(--accent-orange);
    background: rgba(245, 158, 11, 0.15);
    padding: 4px 12px;
    border-radius: 6px;
}

.selected-device .change-btn {
    margin-top: 10px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.selected-device .change-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: #eff6ff;
}

/* ============== 主机设备（固定） ============== */
.host-device {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: linear-gradient(145deg, #faf5ff, #f3e8ff);
    border: 3px solid var(--accent-purple);
    border-radius: 0 0 16px 16px;
    box-shadow: var(--shadow-lg);
}

.host-device .host-icon {
    font-size: 4rem;
}

.host-device .host-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-purple);
}

/* 主机接口列表 */
.host-ports-list {
    width: 100%;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid rgba(139, 92, 246, 0.2);
}

.ports-label, .cables-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 500;
}

.ports-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.port-badge {
    font-size: 0.85rem;
    padding: 6px 12px;
    background: #dbeafe;
    color: var(--accent-blue);
    border-radius: 6px;
    font-weight: 600;
}

.port-badge.bt {
    background: #ede9fe;
    color: var(--accent-purple);
}

.port-badge.out {
    background: #fef3c7;
    color: var(--accent-orange);
}

/* 自带线材 */
.host-cables {
    width: 100%;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid rgba(139, 92, 246, 0.2);
}

.cables-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.cable-badge {
    font-size: 0.85rem;
    padding: 6px 12px;
    background: #dcfce7;
    color: var(--accent-green);
    border-radius: 6px;
    font-weight: 600;
}

.host-ports-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 2px solid rgba(139, 92, 246, 0.2);
}

.port-in, .port-out {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    padding: 10px 14px;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.port-in .port-label {
    color: var(--accent-blue);
    font-weight: 600;
}

.port-out .port-label {
    color: var(--accent-orange);
    font-weight: 600;
}

.port-in .port-value, .port-out .port-value {
    color: var(--text-muted);
}

.port-in .port-value.connected, .port-out .port-value.connected {
    color: var(--accent-green);
    font-weight: 600;
}

/* ============== 连接箭头 ============== */
.chain-arrow {
    display: flex;
    align-items: center;
    padding: 0 10px;
    min-width: 100px;
    position: relative;
    margin-top: 80px;
}

.arrow-line {
    flex: 1;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    position: relative;
}

.arrow-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-green), var(--accent-blue));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.chain-arrow.connected .arrow-line::before {
    width: 100%;
    animation: flowPulse 2s ease-in-out infinite;
}

@keyframes flowPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.cable-label {
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.chain-arrow.connected .cable-label {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: #f0fdf4;
}

.arrow-head {
    color: var(--border-color);
    font-size: 1.5rem;
    font-weight: bold;
}

.chain-arrow.connected .arrow-head {
    color: var(--accent-green);
}

/* ============== 线材清单 ============== */
.cable-summary {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--shadow-md);
}

.summary-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.summary-list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.summary-empty {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 22px;
    background: var(--bg-card-hover);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.2s;
}

.summary-item .item-icon {
    font-size: 1.8rem;
}

.summary-item .item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.summary-item .item-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.summary-item .item-route {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.summary-item .item-tag {
    font-size: 0.9rem;
    padding: 6px 12px;
    border-radius: 6px;
    white-space: nowrap;
    font-weight: 600;
}

.summary-item .included-tag {
    background: #dcfce7;
    color: var(--accent-green);
}

.summary-item .buy-tag {
    background: #fef3c7;
    color: var(--accent-orange);
}

.summary-item.included {
    border-color: #86efac;
    background: #f0fdf4;
}

.summary-item.need-buy {
    border-color: #fcd34d;
    background: #fffbeb;
}

/* ============== 完整连接图示 ============== */
.connection-diagram {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    box-shadow: var(--shadow-md);
}

.diagram-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.diagram-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    overflow-x: auto;
}

.diagram-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    min-width: 100px;
    box-shadow: var(--shadow-sm);
}

.diagram-item .d-icon {
    font-size: 2.5rem;
}

.diagram-item .d-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

.diagram-item .d-port {
    font-size: 0.9rem;
    color: var(--accent-green);
    font-weight: 500;
}

.diagram-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 16px;
}

.diagram-arrow .arrow-cable {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    white-space: nowrap;
    font-weight: 500;
}

.diagram-arrow .arrow-icon {
    font-size: 1.8rem;
    color: var(--accent-green);
}

/* ============== 弹窗样式 ============== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    min-width: 400px;
    max-width: 550px;
    max-height: 85vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.modal-header .modal-icon {
    font-size: 2.8rem;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    margin-bottom: 24px;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* 设备选择网格 */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 16px;
}

.device-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 16px;
    background: var(--bg-card-hover);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.device-option:hover {
    border-color: var(--accent-blue);
    background: #eff6ff;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.device-option .opt-icon {
    font-size: 2.8rem;
}

.device-option .opt-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

/* 接口选择 */
.port-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.port-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: var(--bg-card-hover);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.port-option:hover {
    border-color: var(--accent-blue);
    background: #eff6ff;
}

.port-option.selected {
    border-color: var(--accent-blue);
    background: #dbeafe;
}

.port-option.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.port-option input[type="radio"] {
    width: 22px;
    height: 22px;
    accent-color: var(--accent-blue);
}

.port-option .port-name {
    flex: 1;
    font-size: 1.15rem;
    font-weight: 500;
}

.port-option .recommended {
    font-size: 0.85rem;
    background: var(--accent-green);
    color: white;
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: 600;
}

/* 电视盒子选项弹窗 */
.tvbox-options {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tvbox-option {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card-hover);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.tvbox-option:hover {
    border-color: var(--accent-blue);
    background: #eff6ff;
}

.tvbox-option .opt-icon {
    font-size: 2rem;
    min-width: 60px;
    text-align: center;
}

.tvbox-option .opt-info {
    flex: 1;
}

.tvbox-option .opt-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.tvbox-option .opt-desc {
    font-size: 1rem;
    color: var(--text-muted);
}

.modal-footer {
    display: flex;
    gap: 14px;
    justify-content: flex-end;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

/* ============== 提示信息 ============== */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(60px);
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 28px;
    font-size: 1.1rem;
    font-weight: 500;
    z-index: 1001;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.error {
    border-color: var(--accent-red);
    color: var(--accent-red);
    background: #fef2f2;
}

.toast.success {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: #f0fdf4;
}

/* ============== 响应式 - 平板 ============== */
@media (max-width: 1024px) {
    .main-content {
        padding: 24px 16px;
        max-width: 100%;
    }
    
    .chain-step {
        min-width: 200px;
        max-width: 240px;
    }
    
    .chain-arrow {
        min-width: 80px;
        padding: 0 5px;
    }
}

/* ============== 响应式 - 手机 ============== */
@media (max-width: 768px) {
    .header {
        padding: 20px 16px;
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .header-hint {
        font-size: 1rem;
    }
    
    .main-content {
        padding: 20px 12px;
        gap: 24px;
    }
    
    /* 连接链路垂直排列 */
    .connection-chain {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 0;
    }
    
    .chain-step {
        width: 100%;
        max-width: 100%;
        min-width: auto;
    }
    
    .step-header {
        padding: 16px;
        border-radius: 12px 12px 0 0;
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }
    
    .step-number {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .step-title {
        font-size: 1.2rem;
        flex: 1;
    }
    
    .step-desc {
        font-size: 0.9rem;
    }
    
    .device-slot {
        min-height: 120px;
        border-radius: 0 0 12px 12px;
    }
    
    .slot-placeholder {
        flex-direction: row;
        gap: 12px;
    }
    
    .placeholder-icon {
        font-size: 2rem;
    }
    
    .placeholder-text {
        font-size: 1rem;
    }
    
    .selected-device {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding: 16px;
        gap: 12px;
    }
    
    .selected-device .device-icon {
        font-size: 2.5rem;
    }
    
    .selected-device .device-name {
        font-size: 1.1rem;
    }
    
    .selected-device .device-port {
        font-size: 0.9rem;
        padding: 6px 12px;
    }
    
    .selected-device .change-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    /* 主机设备 */
    .host-device {
        padding: 20px 16px;
        border-radius: 0 0 12px 12px;
    }
    
    .host-device .host-icon {
        font-size: 3rem;
    }
    
    .host-device .host-name {
        font-size: 1.2rem;
    }
    
    .ports-row {
        gap: 6px;
    }
    
    .port-badge {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
    
    .cables-list {
        gap: 6px;
    }
    
    .cable-badge {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
    
    .port-in, .port-out {
        font-size: 0.9rem;
        padding: 8px 12px;
    }
    
    /* 箭头改为垂直向下 */
    .chain-arrow {
        flex-direction: column;
        align-items: center;
        padding: 8px 0;
        min-width: auto;
        margin-top: 0;
        transform: none;
    }
    
    .arrow-line {
        width: 6px;
        height: 40px;
    }
    
    .arrow-line::before {
        width: 100%;
        height: 0%;
    }
    
    .chain-arrow.connected .arrow-line::before {
        height: 100%;
        width: 100%;
    }
    
    .cable-label {
        position: static;
        transform: none;
        margin: 8px 0;
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .arrow-head {
        transform: rotate(90deg);
        font-size: 1.2rem;
    }
    
    /* 线材清单 */
    .cable-summary {
        padding: 20px 16px;
        border-radius: 12px;
    }
    
    .summary-title {
        font-size: 1.2rem;
        margin-bottom: 16px;
    }
    
    .summary-list {
        flex-direction: column;
        gap: 12px;
    }
    
    .summary-item {
        padding: 14px 16px;
        gap: 12px;
    }
    
    .summary-item .item-icon {
        font-size: 1.5rem;
    }
    
    .summary-item .item-name {
        font-size: 1rem;
    }
    
    .summary-item .item-route {
        font-size: 0.85rem;
    }
    
    .summary-item .item-tag {
        font-size: 0.8rem;
        padding: 5px 10px;
    }
    
    /* 连接图示 */
    .connection-diagram {
        padding: 20px 16px;
        border-radius: 12px;
    }
    
    .diagram-title {
        font-size: 1.2rem;
    }
    
    .diagram-content {
        flex-direction: column;
        padding: 16px;
        gap: 0;
    }
    
    .diagram-item {
        width: 100%;
        padding: 14px;
        min-width: auto;
    }
    
    .diagram-item .d-icon {
        font-size: 2rem;
    }
    
    .diagram-item .d-name {
        font-size: 0.95rem;
    }
    
    .diagram-arrow {
        padding: 8px 0;
    }
    
    .diagram-arrow .arrow-icon {
        transform: rotate(90deg);
        font-size: 1.5rem;
    }
    
    .diagram-arrow .arrow-cable {
        font-size: 0.8rem;
    }
    
    /* 弹窗 */
    .modal-overlay {
        padding: 16px;
        align-items: flex-end;
    }
    
    .modal {
        min-width: auto;
        width: 100%;
        max-width: 100%;
        max-height: 80vh;
        padding: 24px 20px;
        border-radius: 20px 20px 0 0;
    }
    
    .modal-header {
        gap: 12px;
        margin-bottom: 20px;
    }
    
    .modal-header .modal-icon {
        font-size: 2.2rem;
    }
    
    .modal-header h2 {
        font-size: 1.3rem;
    }
    
    .modal-body p {
        font-size: 1rem;
        margin-bottom: 16px;
    }
    
    .device-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .device-option {
        padding: 14px 10px;
        gap: 8px;
    }
    
    .device-option .opt-icon {
        font-size: 2.2rem;
    }
    
    .device-option .opt-name {
        font-size: 0.9rem;
    }
    
    .port-option {
        padding: 14px 16px;
        gap: 12px;
    }
    
    .port-option input[type="radio"] {
        width: 20px;
        height: 20px;
    }
    
    .port-option .port-name {
        font-size: 1rem;
    }
    
    .port-option .recommended {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    
    .tvbox-option {
        padding: 16px;
        gap: 14px;
    }
    
    .tvbox-option .opt-icon {
        font-size: 1.6rem;
        min-width: 50px;
    }
    
    .tvbox-option .opt-title {
        font-size: 1rem;
    }
    
    .tvbox-option .opt-desc {
        font-size: 0.85rem;
    }
    
    .modal-footer {
        gap: 10px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 1rem;
        flex: 1;
    }
    
    /* Toast */
    .toast {
        bottom: 20px;
        left: 16px;
        right: 16px;
        transform: translateX(0) translateY(60px);
        padding: 14px 20px;
        font-size: 1rem;
    }
    
    .toast.show {
        transform: translateX(0) translateY(0);
    }
}

/* ============== 响应式 - 小屏手机 ============== */
@media (max-width: 375px) {
    .header h1 {
        font-size: 1.3rem;
    }
    
    .device-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .step-header {
        padding: 14px 12px;
    }
    
    .step-title {
        font-size: 1.1rem;
    }
    
    .host-device .host-name {
        font-size: 1.1rem;
    }
    
    .modal {
        padding: 20px 16px;
    }
}