/* 基礎樣式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Microsoft JhengHei', sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg,
        var(--bg-light),
        var(--bg-main)
    );
    position: relative;
    overflow-x: hidden;
    display: flex;  /* 添加 flex 佈局 */
    justify-content: center;  /* 水平置中 */
    align-items: center;  /* 垂直置中 */
}

/* 容器樣式 */
.container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;  /* 添加內邊距 */
    box-sizing: border-box;  /* 確保內邊距不會增加容器大小 */
}

/* 容器主題樣式 */
.container.developer-theme {
    background: linear-gradient(135deg,
        var(--developer-bg) 0%,
        #ffffff 100%
    );
}

.container.visitor-theme {
    background: linear-gradient(135deg,
        var(--visitor-bg) 0%,
        #f0f5ff 100%
    );
}

/* 響應式斷點設置 */
:root {
    --breakpoint-sm: 576px;    /* 手機 */
    --breakpoint-md: 768px;    /* 平板 */
    --breakpoint-lg: 992px;    /* 小筆電 */
    --breakpoint-xl: 1200px;   /* 大螢幕 */
}

/* 登入框主體樣式更新 */
.login-box {
    width: 85%;
    max-width: 900px;
    padding: 1.8rem;
    display: grid;
    grid-template-columns: 0.8fr 1px 1fr;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(44, 82, 130, 0.08),
                0 2px 8px rgba(44, 82, 130, 0.05);
    margin: auto;  /* 自動邊距確保置中 */
    position: relative;  /* 添加相對定位 */
}

/* 左側資訊區域調整 */
.login-header {
    height: 550px;
    overflow-y: auto;
    padding: 1rem 1.2rem;
    display: flex;
    flex-direction: column;
}

/* 分隔線 */
.login-divider {
    width: 1px;
    height: 550px;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--primary-light),
        transparent
    );
}

/* 右側登入區域基礎樣式 */
.login-form-section {
    height: 550px;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 1rem 0 1rem 2rem;  /* 增加左側內邊距 */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;  /* 改為左對齊 */
    gap: 2.5rem;
}

/* 登入表單包裝容器 */
.login-form-wrapper {
    width: 100%;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 0 0 0 1rem;  /* 只保留左側內邊距 */
}

/* 帳戶選擇器樣式 */
.account-selector {
    width: 100%;
    max-width: 320px;  /* 增加最大寬度 */
    display: flex;
    gap: 1.5rem;  /* 增加按鈕間距 */
    justify-content: flex-start;
}

/* 帳戶選項樣式 */
.account-option {
    width: 150px;  /* 增加按鈕寬度 */
    padding: 1.4rem 1.2rem;  /* 增加內邊距 */
    background: white;
    border: 2px solid var(--neutral-300);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* 帳戶選項內容樣式 */
.option-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.option-content i {
    font-size: 1.5rem;  /* 增加圖標大小 */
    transition: all 0.3s ease;
}

.option-content span {
    font-size: 1.1rem;  /* 增加文字大小 */
    font-weight: 500;
}

/* 密碼區域容器樣式 */
.password-section {
    width: 100%;
    max-width: 280px;
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    margin: 0 auto;
}

/* 密碼輸入框容器樣式 */
.input-group {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
}

/* 密碼輸入框基礎樣式 */
.input-group input[type="password"] {
    width: 100%;
    height: 56px;
    padding: 0 60px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--neutral-300);
    border-radius: 15px;
    font-size: 1.3rem;
    color: var(--primary-dark);
    letter-spacing: 4px;  /* 調整文字間距從 8px 改為 4px */
    transition: all 0.3s ease;
}

/* 密碼圖標樣式 */
.input-group i {
    position: absolute;
    left: 22px;
    color: var(--primary-main);
    font-size: 1.3rem;
    opacity: 0.7;
    transition: all 0.3s ease;
    pointer-events: none;
}

/* 密碼輸入框懸浮效果 */
.input-group:hover input[type="password"] {
    border-color: var(--primary-light);
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.02),
        0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

/* 密碼輸入框焦點效果 */
.input-group input[type="password"]:focus {
    border-color: var(--primary-main);
    background: white;
    box-shadow: 
        0 0 0 3px rgba(74, 144, 226, 0.1),
        0 8px 25px rgba(74, 144, 226, 0.1);
    outline: none;
    transform: translateY(-2px);
}

/* 密碼輸入框懸浮時圖標效果 */
.input-group:hover i {
    color: var(--primary-main);
    opacity: 1;
    transform: scale(1.1);
}

/* 密碼輸入框佔位符樣式 */
.input-group input[type="password"]::placeholder {
    letter-spacing: normal;  /* 讓提示文字保持正常間距 */
    font-family: 'Microsoft JhengHei', sans-serif;
    font-size: 1rem;
    color: #94A3B8;
    opacity: 0.8;
}

/* 密碼輸入框禁用狀態 */
.input-group input[type="password"]:disabled {
    background: rgba(247, 250, 252, 0.95);
    border: 1px solid #E2E8F0;
    color: #94A3B8;
    cursor: not-allowed;
    letter-spacing: 0;
    box-shadow: none;
    transform: none;
}

/* 開發者主題樣式 */
.developer-theme .input-group input[type="password"]:focus {
    border-color: var(--developer-primary);
    box-shadow: 
        0 0 0 3px rgba(46, 125, 50, 0.15),
        0 8px 25px rgba(46, 125, 50, 0.12);
}

.developer-theme .input-group i {
    color: var(--developer-primary);
}

/* 訪客主題樣式 */
.visitor-theme .input-group input[type="password"]:focus {
    border-color: var(--visitor-primary);
    box-shadow: 
        0 0 0 3px rgba(30, 61, 89, 0.15),
        0 8px 25px rgba(30, 61, 89, 0.12);
}

.visitor-theme .input-group i {
    color: var(--visitor-primary);
}

/* 登入按鈕調整 */
.login-btn {
    width: 100%;
    max-width: 280px;  /* 與輸入框同寬 */
    height: 42px;
    margin-right: auto;  /* 自動右邊距，實現左對齊 */
    font-family: 'Microsoft JhengHei', sans-serif;
    font-size: 1.1rem;  /* 調整按鈕文字大小 */
    font-weight: 500;   /* 調整文字粗細 */
    letter-spacing: 2px;  /* 增加字間距 */
}

.login-btn i {
    font-size: 1.1rem;  /* 調整圖標大小 */
    margin-right: 4px;  /* 增加圖標和文字的間距 */
}

/* 頁腳區域調整 */
.login-footer {
    width: 100%;
    max-width: 280px;  /* 與輸入框同寬 */
    margin-left: 2rem;  /* 統一左邊距 */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 響應式調整 */
@media (max-width: 992px) {
    .container {
        padding: 1rem;  /* 減少內邊距 */
    }
    
    .login-box {
        width: 90%;
        max-width: 500px;
    }

    .login-header {
        height: auto;
        max-height: none;
        padding: 1rem;
    }

    .login-divider {
        display: none;
    }

    .login-form-section {
        padding: 2rem 1rem;
        height: auto;
        align-items: center;
    }

    .login-form-wrapper {
        padding: 0;
    }

    .account-selector,
    .password-section,
    .input-group,
    .login-btn,
    .login-footer {
        max-width: 280px;
        margin-left: 0;
    }

    .system-info,
    .login-tips,
    .support-info {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .password-section,
    .input-group,
    .login-btn,
    .login-footer {
        padding-left: 1rem;  /* 縮小左側內邊距 */
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0.5rem;  /* 進一步減少內邊距 */
    }
    
    .login-box {
        width: 95%;
        padding: 1rem;
    }

    .account-selector {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .account-option {
        width: 100%;
        max-width: 320px;  /* 配合父容器寬度 */
        padding: 1.4rem;
    }

    .input-group,
    .login-btn,
    .login-footer {
        max-width: 280px;
    }

    .overlay-hint {
        width: 90%;
        min-width: auto;
        top: -70px;
    }

    .hint-content {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .modal-content {
        width: 90%;
        padding: 1.5rem;
    }

    .modal-content h2 {
        font-size: 1.5rem;
    }

    .changelog-sidebar {
        width: 100%;
    }

    .login-form-section {
        padding: 1.5rem;
    }

    .password-section,
    .input-group,
    .login-btn,
    .login-footer {
        padding-left: 0;  /* 移除左側內邊距 */
        align-items: center;  /* 在小螢幕上置中 */
        margin: 0 auto;  /* 在小螢幕上置中 */
    }
}

/* 移除登入框的光暈效果 */
.login-box::before {
    display: none;
}

/* 登入框主題樣式 */
.login-box.developer-theme {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(76, 175, 80, 0.2);
    box-shadow: 
        0 8px 32px rgba(46, 125, 50, 0.08),
        0 2px 8px rgba(46, 125, 50, 0.05);
}

.login-box.visitor-theme {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(74, 144, 226, 0.2);
    box-shadow: 
        0 8px 32px rgba(30, 61, 89, 0.08),
        0 2px 8px rgba(30, 61, 89, 0.05);
}

/* 針對 Safari 的特殊處理 */
@supports (-webkit-backdrop-filter: none) {
    .login-box {
        -webkit-backdrop-filter: blur(10px);
    }
}

/* 自定義捲動條樣式 */
.login-header::-webkit-scrollbar {
    width: 6px;
}

.login-header::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 3px;
}

.login-header::-webkit-scrollbar-thumb {
    background: rgba(74, 144, 226, 0.3);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.login-header::-webkit-scrollbar-thumb:hover {
    background: rgba(74, 144, 226, 0.5);
}

/* 主題相關捲動條樣式 */
.developer-theme .login-header::-webkit-scrollbar-thumb {
    background: rgba(46, 125, 50, 0.3);
}

.developer-theme .login-header::-webkit-scrollbar-thumb:hover {
    background: rgba(46, 125, 50, 0.5);
}

.visitor-theme .login-header::-webkit-scrollbar-thumb {
    background: rgba(30, 61, 89, 0.3);
}

.visitor-theme .login-header::-webkit-scrollbar-thumb:hover {
    background: rgba(30, 61, 89, 0.5);
}

.login-logo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    border: 4px solid transparent;
    padding: 4px;
    margin-bottom: 1rem;
    animation: floating 3s ease-in-out infinite;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(45deg, var(--primary-blue), var(--primary-green)) border-box;
}

@keyframes floating {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.login-header h2 {
    color: var(--dark-blue);
    font-size: 2.2rem;
    margin: 0.3rem 0;
}

.login-subtitle {
    color: #546E7A;
    font-size: 1.1rem;
    line-height: 1.5;
}

/* 選項內容樣式 */
.option-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;  /* 減少圖標和文字的間距 */
    position: relative;
    z-index: 2;
}

/* 圖標樣式 */
.option-content i {
    font-size: 2.2rem;  /* 稍微縮小圖標 */
    color: var(--primary-main);
    transition: all 0.4s ease;
}

/* 文字樣式 */
.option-content span {
    font-size: 1.2rem;  /* 稍微縮小文字 */
    color: var(--primary-dark);
    font-weight: 500;
    transition: all 0.4s ease;
}

/* 選中狀態 */
.account-option.selected {
    border-color: var(--primary-main);
    background: linear-gradient(
        135deg,
        rgba(44, 82, 130, 0.08),
        rgba(74, 144, 226, 0.08)
    );
    transform: translateY(-5px);
    box-shadow: 
        0 10px 20px rgba(44, 82, 130, 0.15),
        0 3px 6px rgba(44, 82, 130, 0.1);
}

/* 選中狀態的圖標和文字效果 */
.account-option.selected .option-content i {
    color: var(--primary-light);
    transform: scale(1.1);
}

.account-option.selected .option-content span {
    color: var(--primary-main);
    font-weight: 600;
}

/* 選中標記 */
.check-icon {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 22px;     /* 縮小選中標記 */
    height: 22px;
    background: var(--primary-main);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    opacity: 0;
    transform: scale(0) rotate(-180deg);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.account-option.selected .check-icon {
    opacity: 1;
    transform: scale(1) rotate(0);
}

/* 懸浮效果 */
.account-option:hover:not(.selected) {
    border-color: var(--neutral-300);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(44, 82, 130, 0.1);
}

.account-option:hover:not(.selected) .option-content i {
    transform: scale(1.05);
    color: var(--primary-light);
}

/* 點擊效果 */
.account-option:active {
    transform: translateY(-2px);
}

/* 背景動畫效果 */
.account-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(74, 144, 226, 0.1),
        transparent
    );
    transition: 0.5s;
}

.account-option:hover::before {
    left: 100%;
}

/* 登入按鈕樣式 */
.login-btn {
    width: 450px;
    height: 45px;
    margin: 1rem 0;
    background: linear-gradient(135deg,
        #1E3D59 0%,    /* 深藍色起點 */
        #2C5282 50%,   /* 中間藍色 */
        #4A90E2 100%   /* 亮藍色終點 */
    );
    color: #FFFFFF;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 
        0 4px 15px rgba(30, 61, 89, 0.15),
        inset 0 2px 2px rgba(255, 255, 255, 0.1);
}

/* 登入按鈕懸浮效果 */
.login-btn:hover {
    transform: translateY(-2px) scale(1.01);
    background: linear-gradient(135deg,
        #2C5282 0%,    /* 深藍色起點 */
        #4A90E2 50%,   /* 中間藍色 */
        #6BA6E5 100%   /* 更亮藍色終點 */
    );
    box-shadow: 
        0 6px 20px rgba(30, 61, 89, 0.2),
        inset 0 2px 2px rgba(255, 255, 255, 0.2);
}

/* 登入按鈕點擊效果 */
.login-btn:active {
    transform: translateY(1px) scale(0.99);
    box-shadow: 
        0 2px 10px rgba(30, 61, 89, 0.1),
        inset 0 1px 2px rgba(255, 255, 255, 0.1);
}

/* 登入按鈕圖標 */
.login-btn i {
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

/* 登入按鈕懸浮時圖標效果 */
.login-btn:hover i {
    transform: translateX(3px);
    animation: iconPulse 1s infinite;
}

/* 登入按鈕光暈效果 */
.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: 0.5s;
}

.login-btn:hover::before {
    left: 100%;
}

/* 圖標動畫 */
@keyframes iconPulse {
    0% { transform: translateX(0); }
    50% { transform: translateX(5px); }
    100% { transform: translateX(0); }
}

/* 禁用狀態 */
.login-btn:disabled {
    background: linear-gradient(135deg,
        #A0AEC0 0%,
        #CBD5E0 100%
    );
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

/* 頁腳區域調整 */
.login-footer {
    max-width: 320px;  /* 配合其他元素寬度 */
}

/* 安全加密連線樣式 */
.security-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-dark);
    font-size: 1rem;
    padding: 8px 16px;
    background: rgba(74, 144, 226, 0.08);
    border-radius: 20px;
}

.security-info i {
    color: var(--primary-main);
    font-size: 1.1rem;
}

/* 更新日誌按鈕樣式 */
.changelog-btn {
    background: rgba(74, 144, 226, 0.08);
    border: none;
    color: var(--primary-dark);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.changelog-btn i {
    color: var(--primary-main);
    font-size: 1.1rem;
}

.changelog-btn:hover {
    background: var(--primary-main);
    color: var(--neutral-100);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.2);
}

.changelog-btn:hover i {
    color: white;
}

/* 新的加載動畫樣式 */
.loader-container {
    text-align: center;
    padding: 2rem;
}

.rocket {
    font-size: 3rem;
    color: var(--primary-blue);
    animation: rocketMove 2s infinite;
}

.stars {
    margin: 1rem 0;
}

.stars i {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin: 0 5px;
    animation: twinkle 1s infinite;
    opacity: 0.8;
}

.stars i:nth-child(2) {
    animation-delay: 0.3s;
}

.stars i:nth-child(3) {
    animation-delay: 0.6s;
}

.welcome-text {
    font-size: 2rem;
    color: #333;
    margin: 1rem 0;
    animation: fadeInUp 0.5s ease-out;
}

.loading-text {
    color: #666;
    font-size: 1.1rem;
    animation: fadeInUp 0.5s ease-out 0.2s both;
}

@keyframes rocketMove {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.content-wrapper {
    padding: 2rem;
    width: 100%;
    max-width: 1200px;
    margin-top: 80px;
}

.title-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.title-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.title-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s;
}

.title-card:hover .card-image {
    transform: scale(1.1);
}

.fancy-title {
    width: 100%;
    padding: 1.5rem;
    border: none;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}