/* NovelCloud v2.0 - Modern UI with Animations */

/* ========== CSS Variables & Design Tokens ========== */
:root {
    /* Colors - Black / Brown / Cyan Palette */
    --beijing: #f5f0eb;
    --kajian: #ffffff;
    --wenzi: #1a1410;
    --wenzi_ciru: #8b7355;
    --biankuang: #d4c4b0;
    --biaotou: #f0ebe5;
    --xuanzhong: #e8f5f0;
    --xuanzhong_border: #00b8a9;

    /* Primary Accent - Cyan */
    --anniu: #008b8b;
    --anniu_gradient: linear-gradient(135deg, #006666 0%, #008b8b 100%);
    --anniu_wenzi: #ffffff;
    --anniu_xuanfu: #006666;
    --anniu_shadow: rgba(0, 139, 139, 0.3);

    /* Secondary */
    --daohang_lianjie: #008b8b;
    --success: #00b8a9;
    --warning: #c4a882;
    --danger: #c45c3e;
    --info: #5c8d89;

    /* Effects */
    --shadow_sm: 0 1px 2px 0 rgba(26, 20, 16, 0.05);
    --shadow_md: 0 4px 6px -1px rgba(26, 20, 16, 0.1), 0 2px 4px -1px rgba(26, 20, 16, 0.06);
    --shadow_lg: 0 10px 15px -3px rgba(26, 20, 16, 0.1), 0 4px 6px -2px rgba(26, 20, 16, 0.05);
    --shadow_xl: 0 20px 25px -5px rgba(26, 20, 16, 0.1), 0 10px 10px -5px rgba(26, 20, 16, 0.04);
    --shadow_glow: 0 0 20px rgba(0, 139, 139, 0.15);

    /* Radius */
    --radius_sm: 6px;
    --radius_md: 10px;
    --radius_lg: 16px;
    --radius_xl: 24px;
    --radius_full: 9999px;

    /* Transitions */
    --transition_fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition_base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition_slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing */
    --space_1: 4px;
    --space_2: 8px;
    --space_3: 12px;
    --space_4: 16px;
    --space_5: 20px;
    --space_6: 24px;
    --space_8: 32px;
    --space_10: 40px;
}

/* ========== Dark Theme ========== */
body.theme-dark {
    --beijing: #0a0a0f;
    --kajian: #14141a;
    --wenzi: #e8e4e0;
    --wenzi_ciru: #8b7355;
    --biankuang: #3d3028;
    --biaotou: #1a1512;
    --xuanzhong: #1a2a2a;
    --xuanzhong_border: #00b8a9;
    --anniu: #00b8a9;
    --anniu_gradient: linear-gradient(135deg, #008b8b 0%, #00b8a9 100%);
    --anniu_wenzi: #ffffff;
    --anniu_xuanfu: #008b8b;
    --anniu_shadow: rgba(0, 184, 169, 0.4);
    --daohang_lianjie: #00b8a9;
    --success: #00b8a9;
    --warning: #c4a882;
    --danger: #e07050;
    --info: #5c8d89;
    --shadow_sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow_md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow_lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow_xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow_glow: 0 0 20px rgba(0, 184, 169, 0.25);
}

/* ========== Brown-Gold Theme ========== */
body.theme-green {
    --beijing: #f0ebe5;
    --kajian: #ffffff;
    --wenzi: #1a1410;
    --wenzi_ciru: #8b7355;
    --biankuang: #c4a882;
    --biaotou: #e8ddd0;
    --xuanzhong: #e8f0e8;
    --xuanzhong_border: #8b6914;
    --anniu: #8b6914;
    --anniu_gradient: linear-gradient(135deg, #6b5010 0%, #8b6914 100%);
    --anniu_wenzi: #ffffff;
    --anniu_xuanfu: #6b5010;
    --anniu_shadow: rgba(139, 105, 20, 0.3);
    --daohang_lianjie: #8b6914;
    --success: #00b8a9;
    --warning: #c4a882;
    --danger: #c45c3e;
    --info: #5c8d89;
    --shadow_glow: 0 0 20px rgba(139, 105, 20, 0.15);
}

/* ========== Keyframes ========== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9) translateY(-20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes modalBackdropIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes rowSlideIn {
    from { opacity: 0; transform: translateX(-15px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--anniu_shadow); }
    50% { box-shadow: 0 0 20px var(--anniu_shadow), 0 0 40px var(--anniu_shadow); }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--beijing);
    color: var(--wenzi);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition_slow), color var(--transition_slow);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== Navigation - Compact & Non-Sticky ========== */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space_3) var(--space_5);
    margin: var(--space_3) var(--space_5) var(--space_4);
    background: var(--kajian);
    border-radius: var(--radius_md);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    animation: fadeInScale 0.5s var(--transition_base) both;
    flex-wrap: wrap;
    gap: var(--space_3);
    position: relative;
    z-index: 100;
}

nav a {
    color: var(--daohang_lianjie);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space_2) var(--space_3);
    border-radius: var(--radius_sm);
    transition: all var(--transition_fast);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space_1);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--anniu);
    transition: all var(--transition_fast);
    transform: translateX(-50%);
    border-radius: var(--radius_full);
}

nav a:hover {
    color: var(--anniu);
    background: var(--xuanzhong);
}

nav a:hover::after {
    width: 60%;
}

/* ========== Theme Switcher ========== */
.zhuti_qiehuan {
    display: flex;
    gap: var(--space_2);
    background: var(--biaotou);
    padding: var(--space_1);
    border-radius: var(--radius_full);
    border: 1px solid var(--biankuang);
}

.zhuti_qiehuan button {
    padding: var(--space_2) var(--space_3);
    background: transparent;
    color: var(--wenzi_ciru);
    border: none;
    border-radius: var(--radius_full);
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition_fast);
    position: relative;
    overflow: hidden;
}

.zhuti_qiehuan button:hover {
    background: var(--kajian);
    color: var(--wenzi);
    transform: translateY(-2px);
    box-shadow: var(--shadow_sm);
}

.zhuti_qiehuan button:active {
    transform: translateY(0);
}

/* ========== Banner ========== */
#hengfu {
    width: calc(100% - var(--space_10));
    max-height: 280px;
    overflow: hidden;
    margin: 0 var(--space_5) var(--space_6);
    border-radius: var(--radius_lg);
    box-shadow: var(--shadow_lg);
    position: relative;
    animation: fadeIn 0.7s 0.1s both;
}

#hengfu::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.1) 100%);
    z-index: 1;
    pointer-events: none;
}

#hengfu img {
    width: 100%;
    height: 100%;
    object-fit: cover !important;
    transition: transform var(--transition_slow);
}

#hengfu:hover img {
    transform: scale(1.03);
}

/* ========== Breadcrumb ========== */
#mianbaoxie {
    margin: 0 var(--space_5) var(--space_4);
    padding: var(--space_3) var(--space_4);
    background: var(--kajian);
    border-radius: var(--radius_md);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    font-size: 14px;
    animation: slideInLeft 0.5s 0.2s both;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space_1);
}

#mianbaoxie a {
    color: var(--daohang_lianjie);
    text-decoration: none;
    padding: var(--space_1) var(--space_2);
    border-radius: var(--radius_sm);
    transition: all var(--transition_fast);
    font-weight: 500;
}

#mianbaoxie a:hover {
    background: var(--xuanzhong);
    color: var(--anniu);
}

#mianbaoxie a:not(:last-child)::after {
    content: '/';
    margin-left: var(--space_2);
    color: var(--wenzi_ciru);
    opacity: 0.5;
}

/* ========== Toolbar ========== */
#gongjilan {
    margin: 0 var(--space_5) var(--space_4);
    padding: var(--space_4);
    background: var(--kajian);
    border-radius: var(--radius_lg);
    box-shadow: var(--shadow_md);
    border: 1px solid var(--biankuang);
    display: flex;
    gap: var(--space_3);
    align-items: center;
    flex-wrap: wrap;
    animation: fadeIn 0.5s 0.3s both;
}

#gongjilan button {
    padding: var(--space_3) var(--space_5);
    background: var(--anniu_gradient);
    color: var(--anniu_wenzi);
    border: none;
    border-radius: var(--radius_md);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition_fast);
    box-shadow: var(--shadow_sm);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: var(--space_2);
}

#gongjilan button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

#gongjilan button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow_md), var(--shadow_glow);
}

#gongjilan button:hover::before {
    left: 100%;
}

#gongjilan button:active {
    transform: translateY(0);
}

#gongjilan input[type="text"] {
    padding: var(--space_3) var(--space_4);
    border: 2px solid var(--biankuang);
    border-radius: var(--radius_md);
    background: var(--beijing);
    color: var(--wenzi);
    font-size: 14px;
    transition: all var(--transition_fast);
    outline: none;
    min-width: 200px;
}

#gongjilan input[type="text"]:focus {
    border-color: var(--anniu);
    box-shadow: 0 0 0 3px var(--anniu_shadow);
    background: var(--kajian);
}

#gongjilan input[type="text"]::placeholder {
    color: var(--wenzi_ciru);
    opacity: 0.6;
}

/* ========== File Table - Modern Card Style ========== */
#wenjian_biao {
    width: calc(100% - var(--space_10));
    margin: 0 var(--space_5) var(--space_6);
    border-collapse: separate;
    border-spacing: 0;
    background: var(--kajian);
    border-radius: var(--radius_lg);
    box-shadow: var(--shadow_lg);
    overflow: hidden;
    border: 1px solid var(--biankuang);
    animation: fadeIn 0.6s 0.4s both;
}

#wenjian_biao thead {
    background: linear-gradient(135deg, var(--biaotou) 0%, var(--beijing) 100%);
}

#wenjian_biao th {
    padding: var(--space_4) var(--space_4);
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--wenzi_ciru);
    border-bottom: 2px solid var(--biankuang);
    cursor: pointer;
    transition: all var(--transition_fast);
    user-select: none;
    white-space: nowrap;
}

#wenjian_biao th:hover {
    color: var(--anniu);
    background: var(--xuanzhong);
}

#wenjian_biao th:first-child {
    width: 40px;
    text-align: center;
}

#wenjian_biao th:last-child {
    text-align: center;
}

#wenjian_biao td {
    padding: var(--space_3) var(--space_4);
    border-bottom: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    vertical-align: middle;
}

#wenjian_biao tbody tr {
    animation: rowSlideIn 0.4s both;
    transition: all var(--transition_fast);
}

#wenjian_biao tbody tr:nth-child(1) { animation-delay: 0.05s; }
#wenjian_biao tbody tr:nth-child(2) { animation-delay: 0.1s; }
#wenjian_biao tbody tr:nth-child(3) { animation-delay: 0.15s; }
#wenjian_biao tbody tr:nth-child(4) { animation-delay: 0.2s; }
#wenjian_biao tbody tr:nth-child(5) { animation-delay: 0.25s; }
#wenjian_biao tbody tr:nth-child(6) { animation-delay: 0.3s; }
#wenjian_biao tbody tr:nth-child(7) { animation-delay: 0.35s; }
#wenjian_biao tbody tr:nth-child(8) { animation-delay: 0.4s; }
#wenjian_biao tbody tr:nth-child(9) { animation-delay: 0.45s; }
#wenjian_biao tbody tr:nth-child(10) { animation-delay: 0.5s; }

#wenjian_biao tbody tr:hover {
    background: var(--xuanzhong);
    box-shadow: inset 0 0 0 1px var(--xuanzhong_border);
    z-index: 1;
    position: relative;
}

#wenjian_biao tbody tr:hover td {
    border-bottom-color: transparent;
}

#wenjian_biao td:first-child {
    text-align: center;
}

/* Custom Checkbox */
#wenjian_biao input[type="checkbox"],
#quanxuan {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--anniu);
    transition: transform var(--transition_fast);
}

#wenjian_biao input[type="checkbox"]:hover,
#quanxuan:hover {
    transform: scale(1.15);
}

/* File Name Cell */
#wenjian_biao td:nth-child(2) {
    font-weight: 500;
    vertical-align: middle;
}

#wenjian_biao td:nth-child(2) .file-name {
    display: inline-flex;
    align-items: center;
    gap: var(--space_2);
}

#wenjian_biao td:nth-child(2) .file-name {
    font-size: 18px;
    transition: transform var(--transition_fast);
}

#wenjian_biao tr:hover td:nth-child(2) .file-name {
    transform: scale(1.02);
}

/* Size & Time */
#wenjian_biao td:nth-child(3),
#wenjian_biao td:nth-child(4) {
    font-size: 13px;
    color: var(--wenzi_ciru);
    font-variant-numeric: tabular-nums;
}

/* ========== Action Buttons ========== */
.caozuo_anniu {
    display: inline-flex;
    gap: var(--space_2);
    flex-wrap: wrap;
    justify-content: center;
}

.caozuo_anniu button {
    padding: var(--space_2) var(--space_3);
    font-size: 12px;
    font-weight: 500;
    background: var(--beijing);
    color: var(--wenzi_ciru);
    border: 1px solid var(--biankuang);
    border-radius: var(--radius_sm);
    cursor: pointer;
    transition: all var(--transition_fast);
    position: relative;
    overflow: hidden;
}

.caozuo_anniu button:hover {
    background: var(--anniu);
    color: var(--anniu_wenzi);
    border-color: var(--anniu);
    transform: translateY(-1px);
    box-shadow: var(--shadow_sm);
}

.caozuo_anniu button:active {
    transform: translateY(0);
}

/* Specific action colors on hover */
.caozuo_anniu button:nth-child(1):hover { background: var(--info); border-color: var(--info); }
.caozuo_anniu button:nth-child(2):hover { background: var(--success); border-color: var(--success); }
.caozuo_anniu button:nth-child(3):hover { background: var(--warning); border-color: var(--warning); }
.caozuo_anniu button:nth-child(4):hover { background: #8b5cf6; border-color: #8b5cf6; }
.caozuo_anniu button:nth-child(5):hover { background: #f97316; border-color: #f97316; }
.caozuo_anniu button:nth-child(6):hover { background: var(--danger); border-color: var(--danger); }

/* ========== Modal - Modern Dialog ========== */
.mulu-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    animation: modalBackdropIn 0.3s ease;
}

.mulu-modal .modal-content {
    background: var(--kajian);
    padding: var(--space_6);
    border-radius: var(--radius_lg);
    max-width: 520px;
    width: 90%;
    max-height: 75vh;
    overflow-y: auto;
    color: var(--wenzi);
    box-shadow: var(--shadow_xl);
    border: 1px solid var(--biankuang);
    animation: modalIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}

.mulu-modal .modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--anniu_gradient);
    border-radius: var(--radius_lg) var(--radius_lg) 0 0;
}

.mulu-modal .modal-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--space_4);
    display: flex;
    align-items: center;
    gap: var(--space_2);
}

.mulu-modal .modal-content h3::before {
    content: '📂';
    font-size: 24px;
}

.mulu-modal .modal-buttons {
    margin-top: var(--space_5);
    display: flex;
    gap: var(--space_3);
    justify-content: flex-end;
}

.mulu-modal .modal-buttons button {
    padding: var(--space_3) var(--space_5);
    border: none;
    border-radius: var(--radius_md);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition_fast);
}

.mulu-modal .modal-buttons button:first-child {
    background: var(--anniu_gradient);
    color: var(--anniu_wenzi);
    box-shadow: var(--shadow_sm);
}

.mulu-modal .modal-buttons button:first-child:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow_md), var(--shadow_glow);
}

.mulu-modal .modal-buttons button:last-child {
    background: var(--beijing);
    color: var(--wenzi_ciru);
    border: 1px solid var(--biankuang);
}

.mulu-modal .modal-buttons button:last-child:hover {
    background: var(--biankuang);
    color: var(--wenzi);
}

/* Modal Breadcrumb */
#mulu-breadcrumb {
    padding: var(--space_3);
    background: var(--beijing);
    border-radius: var(--radius_md);
    margin-bottom: var(--space_4);
    font-size: 13px;
    border: 1px solid var(--biankuang);
}

#mulu-breadcrumb a {
    color: var(--daohang_lianjie);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition_fast);
}

#mulu-breadcrumb a:hover {
    color: var(--anniu);
    text-decoration: underline;
}

/* Modal List */
.mulu-list {
    list-style: none;
    padding: 0;
    border-radius: var(--radius_md);
    overflow: hidden;
    border: 1px solid var(--biankuang);
}

.mulu-list li {
    padding: var(--space_3) var(--space_4);
    cursor: pointer;
    border-bottom: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    display: flex;
    align-items: center;
    gap: var(--space_2);
    font-weight: 500;
    animation: rowSlideIn 0.3s both;
}

.mulu-list li:nth-child(1) { animation-delay: 0.03s; }
.mulu-list li:nth-child(2) { animation-delay: 0.06s; }
.mulu-list li:nth-child(3) { animation-delay: 0.09s; }
.mulu-list li:nth-child(4) { animation-delay: 0.12s; }
.mulu-list li:nth-child(5) { animation-delay: 0.15s; }

.mulu-list li:last-child {
    border-bottom: none;
}

.mulu-list li:hover {
    background: var(--xuanzhong);
    padding-left: var(--space_5);
    color: var(--anniu);
}

.mulu-list li::before {
    content: '📁';
    font-size: 16px;
    transition: transform var(--transition_fast);
}

.mulu-list li:hover::before {
    transform: scale(1.2);
}

/* ========== Loading Spinner ========== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--beijing);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition_slow), visibility var(--transition_slow);
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--biankuang);
    border-top-color: var(--anniu);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-text {
    margin-top: var(--space_4);
    color: var(--wenzi_ciru);
    font-size: 14px;
    animation: pulse 1.5s ease infinite;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: var(--space_10);
    color: var(--wenzi_ciru);
    animation: fadeIn 0.5s both;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--space_4);
    opacity: 0.5;
    animation: float 3s ease infinite;
}

.empty-state-text {
    font-size: 16px;
    font-weight: 500;
}

/* ========== Toast Notifications ========== */
.toast-container {
    position: fixed;
    top: var(--space_5);
    right: var(--space_5);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--space_3);
    pointer-events: none;
}

.toast {
    padding: var(--space_4) var(--space_5);
    background: var(--kajian);
    border-radius: var(--radius_md);
    box-shadow: var(--shadow_lg);
    border: 1px solid var(--biankuang);
    border-left: 4px solid var(--anniu);
    display: flex;
    align-items: center;
    gap: var(--space_3);
    font-size: 14px;
    font-weight: 500;
    animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    pointer-events: auto;
    max-width: 360px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

.toast.hiding {
    animation: fadeIn 0.3s reverse both;
}

/* ========== Footer Note ========== */
.footer-note {
    text-align: center;
    padding: var(--space_6);
    color: var(--wenzi_ciru);
    font-size: 13px;
    opacity: 0.7;
    animation: fadeIn 0.5s 0.6s both;
}

.footer-note a {
    color: var(--daohang_lianjie);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition_fast);
}

.footer-note a:hover {
    text-decoration: underline;
    opacity: 1;
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--beijing);
    border-radius: var(--radius_full);
}

::-webkit-scrollbar-thumb {
    background: var(--biankuang);
    border-radius: var(--radius_full);
    transition: background var(--transition_fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--wenzi_ciru);
}

/* ========== Selection ========== */
::selection {
    background: var(--anniu);
    color: var(--anniu_wenzi);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    nav {
        margin: var(--space_2);
        padding: var(--space_3);
    }

    #hengfu {
        margin: 0 var(--space_2) var(--space_4);
        width: calc(100% - var(--space_4));
    }

    #mianbaoxie,
    #gongjilan,
    #wenjian_biao {
        margin-left: var(--space_2);
        margin-right: var(--space_2);
        width: calc(100% - var(--space_4));
    }

    #gongjilan {
        flex-direction: column;
        align-items: stretch;
    }

    #gongjilan input[type="text"] {
        width: 100%;
    }

    #wenjian_biao {
        display: block;
        overflow-x: auto;
    }

    .caozuo_anniu {
        flex-direction: column;
        width: 100%;
    }

    .caozuo_anniu button {
        width: 100%;
    }
}

/* ========== Utility Animations ========== */
.animate-fade-in {
    animation: fadeIn 0.5s both;
}

.animate-slide-in-left {
    animation: slideInLeft 0.5s both;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s both;
}

.animate-scale-in {
    animation: fadeInScale 0.5s both;
}

/* Hover lift effect */
.hover-lift {
    transition: transform var(--transition_fast), box-shadow var(--transition_fast);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow_lg);
}

/* ========== Universal Page Styles ========== */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space_4) var(--space_5);
    animation: fadeIn 0.5s both;
}

.page-header {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--space_5);
    display: flex;
    align-items: center;
    gap: var(--space_3);
    animation: slideInLeft 0.5s both;
}

.page-card {
    background: var(--kajian);
    border-radius: var(--radius_lg);
    box-shadow: var(--shadow_md);
    border: 1px solid var(--biankuang);
    padding: var(--space_6);
    margin-bottom: var(--space_5);
    animation: fadeInScale 0.5s both;
    transition: all var(--transition_fast);
}

.page-card:hover {
    box-shadow: var(--shadow_lg);
}

/* Forms */
.form-group {
    margin-bottom: var(--space_4);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space_2);
    color: var(--wenzi);
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space_3) var(--space_4);
    border: 2px solid var(--biankuang);
    border-radius: var(--radius_md);
    background: var(--beijing);
    color: var(--wenzi);
    font-size: 14px;
    transition: all var(--transition_fast);
    outline: none;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--anniu);
    box-shadow: 0 0 0 3px var(--anniu_shadow);
    background: var(--kajian);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--wenzi_ciru);
    opacity: 0.6;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Buttons */
.btn {
    padding: var(--space_3) var(--space_5);
    background: var(--anniu_gradient);
    color: var(--anniu_wenzi);
    border: none;
    border-radius: var(--radius_md);
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition_fast);
    box-shadow: var(--shadow_sm);
    display: inline-flex;
    align-items: center;
    gap: var(--space_2);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow_md), var(--shadow_glow);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--beijing);
    color: var(--wenzi_ciru);
    border: 1px solid var(--biankuang);
}

.btn-secondary:hover {
    background: var(--biankuang);
    color: var(--wenzi);
    box-shadow: var(--shadow_md);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.btn-danger:hover {
    box-shadow: var(--shadow_md), 0 0 20px rgba(239, 68, 68, 0.3);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.btn-warning:hover {
    box-shadow: var(--shadow_md), 0 0 20px rgba(245, 158, 11, 0.3);
}

.btn-sm {
    padding: var(--space_2) var(--space_3);
    font-size: 12px;
}

/* Links */
.page-link {
    color: var(--daohang_lianjie);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition_fast);
    padding: var(--space_1) var(--space_2);
    border-radius: var(--radius_sm);
}

.page-link:hover {
    color: var(--anniu);
    background: var(--xuanzhong);
}

/* Lists */
.page-list {
    list-style: none;
    padding: 0;
}

.page-list li {
    padding: var(--space_3) var(--space_4);
    border-bottom: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    display: flex;
    align-items: center;
    gap: var(--space_2);
    border-radius: var(--radius_sm);
}

.page-list li:hover {
    background: var(--xuanzhong);
    padding-left: var(--space_5);
}

.page-list li:last-child {
    border-bottom: none;
}

/* Tables */
.page-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--kajian);
    border-radius: var(--radius_lg);
    box-shadow: var(--shadow_md);
    overflow: hidden;
    border: 1px solid var(--biankuang);
}

.page-table th,
.page-table td {
    padding: var(--space_3) var(--space_4);
    border-bottom: 1px solid var(--biankuang);
    text-align: left;
}

.page-table th {
    background: var(--biaotou);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--wenzi_ciru);
}

.page-table tbody tr {
    transition: all var(--transition_fast);
}

.page-table tbody tr:hover {
    background: var(--xuanzhong);
}

.page-table tbody tr:last-child td {
    border-bottom: none;
}

/* Status badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space_1) var(--space_3);
    border-radius: var(--radius_full);
    font-size: 12px;
    font-weight: 600;
    gap: var(--space_1);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--info);
}

/* Info grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space_4);
    margin-bottom: var(--space_5);
}

.info-item {
    background: var(--kajian);
    border-radius: var(--radius_md);
    padding: var(--space_5);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
}

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

.info-item-label {
    font-size: 12px;
    color: var(--wenzi_ciru);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space_2);
}

.info-item-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--wenzi);
}

/* Auth pages (login/register) */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space_5);
}

.auth-card {
    background: var(--kajian);
    border-radius: var(--radius_xl);
    box-shadow: var(--shadow_xl);
    border: 1px solid var(--biankuang);
    padding: var(--space_8) var(--space_10);
    width: 100%;
    max-width: 420px;
    animation: fadeInScale 0.6s both;
}

.auth-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: var(--space_6);
    text-align: center;
    color: var(--wenzi);
}

.auth-card .form-group {
    margin-bottom: var(--space_4);
}

.auth-card .btn {
    width: 100%;
    justify-content: center;
    margin-top: var(--space_3);
}

.auth-footer {
    text-align: left;
    margin-top: var(--space_5);
    font-size: 14px;
    color: var(--wenzi_ciru);
}

.auth-footer a {
    color: var(--daohang_lianjie);
    font-weight: 600;
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Feedback items */
.feedback-item {
    background: var(--kajian);
    border-radius: var(--radius_md);
    padding: var(--space_5);
    margin-bottom: var(--space_4);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    animation: fadeIn 0.4s both;
}

.feedback-item:hover {
    box-shadow: var(--shadow_md);
    transform: translateY(-1px);
}

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space_3);
    flex-wrap: wrap;
    gap: var(--space_2);
}

.feedback-author {
    font-weight: 600;
    color: var(--wenzi);
}

.feedback-time {
    font-size: 12px;
    color: var(--wenzi_ciru);
}

.feedback-content {
    color: var(--wenzi_ciru);
    line-height: 1.7;
}

.feedback-reply {
    margin-top: var(--space_3);
    padding: var(--space_3) var(--space_4);
    background: var(--beijing);
    border-radius: var(--radius_sm);
    border-left: 3px solid var(--success);
    font-size: 14px;
}

/* Changelog items */
.changelog-item {
    background: var(--kajian);
    border-radius: var(--radius_md);
    padding: var(--space_5);
    margin-bottom: var(--space_4);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    animation: fadeIn 0.4s both;
}

.changelog-item:hover {
    box-shadow: var(--shadow_md);
}

.changelog-version {
    font-weight: 700;
    color: var(--anniu);
    font-size: 16px;
}

.changelog-time {
    font-size: 12px;
    color: var(--wenzi_ciru);
    margin-left: var(--space_2);
}

.changelog-content {
    margin-top: var(--space_3);
    color: var(--wenzi_ciru);
    line-height: 1.7;
    white-space: pre-wrap;
}

/* Dev site cards */
.dev-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space_5);
}

.dev-card {
    background: var(--kajian);
    border-radius: var(--radius_lg);
    padding: var(--space_6);
    box-shadow: var(--shadow_md);
    border: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    text-decoration: none;
    color: var(--wenzi);
    display: flex;
    flex-direction: column;
    gap: var(--space_3);
}

.dev-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow_lg), var(--shadow_glow);
    border-color: var(--anniu);
}

.dev-card-icon {
    font-size: 32px;
}

.dev-card-title {
    font-size: 18px;
    font-weight: 700;
}

.dev-card-desc {
    font-size: 14px;
    color: var(--wenzi_ciru);
    line-height: 1.5;
}

/* Textarea for shared pad */
.shared-pad {
    width: 100%;
    min-height: 300px;
    padding: var(--space_4);
    border: 2px solid var(--biankuang);
    border-radius: var(--radius_lg);
    background: var(--beijing);
    color: var(--wenzi);
    font-size: 14px;
    line-height: 1.7;
    transition: all var(--transition_fast);
    outline: none;
    font-family: inherit;
    resize: vertical;
}

.shared-pad:focus {
    border-color: var(--anniu);
    box-shadow: 0 0 0 3px var(--anniu_shadow);
    background: var(--kajian);
}

/* Announcement content */
.announcement-content {
    background: var(--kajian);
    border-radius: var(--radius_lg);
    padding: var(--space_6);
    box-shadow: var(--shadow_md);
    border: 1px solid var(--biankuang);
    white-space: pre-wrap;
    line-height: 1.8;
    font-size: 15px;
    color: var(--wenzi_ciru);
    min-height: 100px;
    animation: fadeIn 0.5s both;
}

/* Reader toolbar (non-sticky) */
.reader-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space_5);
    flex-wrap: wrap;
    gap: var(--space_3);
    padding: var(--space_3) var(--space_4);
    background: var(--kajian);
    border-radius: var(--radius_md);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
}

.reader-toolbar button,
.reader-toolbar select {
    padding: var(--space_2) var(--space_3);
    background: var(--beijing);
    color: var(--wenzi_ciru);
    border: 1px solid var(--biankuang);
    border-radius: var(--radius_sm);
    cursor: pointer;
    font-size: 13px;
    transition: all var(--transition_fast);
}

.reader-toolbar button:hover {
    background: var(--anniu);
    color: var(--anniu_wenzi);
    border-color: var(--anniu);
}

/* TTS page */
.tts-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space_5);
    margin-bottom: var(--space_5);
}

.tts-control-group {
    background: var(--kajian);
    border-radius: var(--radius_md);
    padding: var(--space_5);
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
}

.tts-control-group h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--space_4);
    color: var(--wenzi);
}

.tts-control-group label {
    display: flex;
    align-items: center;
    gap: var(--space_2);
    margin-bottom: var(--space_3);
    font-size: 14px;
    color: var(--wenzi_ciru);
    cursor: pointer;
}

.tts-control-group input[type="range"] {
    flex: 1;
    accent-color: var(--anniu);
}

.tts-control-group input[type="number"],
.tts-control-group select {
    padding: var(--space_2) var(--space_3);
    border: 2px solid var(--biankuang);
    border-radius: var(--radius_sm);
    background: var(--beijing);
    color: var(--wenzi);
    font-size: 14px;
}

/* Upload page */
.upload-zone {
    border: 2px dashed var(--biankuang);
    border-radius: var(--radius_lg);
    padding: var(--space_10);
    text-align: center;
    background: var(--beijing);
    transition: all var(--transition_fast);
    cursor: pointer;
    margin-bottom: var(--space_5);
}

.upload-zone:hover {
    border-color: var(--anniu);
    background: var(--xuanzhong);
}

.upload-zone-icon {
    font-size: 48px;
    margin-bottom: var(--space_4);
    opacity: 0.5;
}

.upload-zone-text {
    font-size: 16px;
    color: var(--wenzi_ciru);
    font-weight: 500;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--beijing);
    border-radius: var(--radius_full);
    overflow: hidden;
    margin: var(--space_3) 0;
}

.progress-bar-fill {
    height: 100%;
    background: var(--anniu_gradient);
    border-radius: var(--radius_full);
    transition: width 0.3s ease;
}

/* Message/status */
.page-msg {
    padding: var(--space_4);
    border-radius: var(--radius_md);
    margin: var(--space_4) 0;
    font-weight: 500;
    animation: fadeIn 0.3s both;
}

.page-msg.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.page-msg.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.page-msg.info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ========== Auth Page - Left Aligned Modern Design ========== */
@keyframes authBgFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

@keyframes authTitleGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes authFadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes authInputGlow {
    0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
    50% { box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15); }
    100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

@keyframes authBlob1 {
    0%, 100% { transform: translate(0, 0) scale(1); border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50% { transform: translate(50px, -30px) scale(1.1); border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

@keyframes authBlob2 {
    0%, 100% { transform: translate(0, 0) scale(1); border-radius: 40% 60% 60% 40% / 70% 30% 50% 50%; }
    50% { transform: translate(-40px, 40px) scale(1.15); border-radius: 60% 40% 30% 70% / 40% 60% 70% 30%; }
}

.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px 5vw;
    position: relative;
    overflow: hidden;
    animation: authFadeUp 0.6s ease both;
    align-items: flex-start;
}

.auth-page::before,
.auth-page::after {
    content: '';
    position: absolute;
    z-index: 0;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.auth-page::before {
    width: 400px;
    height: 400px;
    background: var(--anniu_gradient);
    top: -100px;
    right: -100px;
    animation: authBlob1 15s ease-in-out infinite;
}

.auth-page::after {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #8b7355, #3d3028);
    bottom: -50px;
    left: 10%;
    animation: authBlob2 12s ease-in-out infinite;
}

.auth-content {
    position: relative;
    z-index: 1;
    max-width: 480px;
    width: 100%;
    margin: 0;
}

.auth-brand {
    margin-bottom: 40px;
    animation: authFadeUp 0.6s 0.1s both;
}

.auth-brand h1 {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 800;
    margin: 0 0 8px 0;
    background: var(--anniu_gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: authTitleGradient 4s ease infinite;
    letter-spacing: -1px;
}

.auth-brand p {
    font-size: 16px;
    color: var(--wenzi_ciru);
    margin: 0;
    animation: authFadeUp 0.6s 0.2s both;
}

.auth-form-wrap {
    background: var(--kajian);
    border-radius: var(--radius_lg);
    padding: 32px;
    box-shadow: var(--shadow_lg);
    border: 1px solid var(--biankuang);
    animation: authFadeUp 0.6s 0.3s both;
    transition: all var(--transition_base);
}

.auth-form-wrap:hover {
    box-shadow: var(--shadow_xl);
}

.auth-form-wrap .form-group input[type="text"],
.auth-form-wrap .form-group input[type="password"] {
    border: none;
    border-bottom: 2px solid var(--biankuang);
    border-radius: 0;
    background: transparent;
    padding: 12px 0;
    font-size: 16px;
}

.auth-form-wrap .form-group input[type="text"]:focus,
.auth-form-wrap .form-group input[type="password"]:focus {
    border-bottom-color: var(--anniu);
    box-shadow: none;
    background: transparent;
}

.auth-form-wrap h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 24px 0;
    color: var(--wenzi);
}

.auth-input-group {
    margin-bottom: 20px;
    position: relative;
}

.auth-input-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--wenzi_ciru);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auth-input-group input {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 2px solid var(--biankuang);
    background: transparent;
    color: var(--wenzi);
    font-size: 16px;
    font-family: inherit;
    transition: all var(--transition_base);
    outline: none;
}

.auth-input-group input:focus {
    border-bottom-color: var(--anniu);
    animation: authInputGlow 1s ease;
}

.auth-input-group input::placeholder {
    color: var(--wenzi_ciru);
    opacity: 0.5;
}

.auth-submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--anniu_gradient);
    color: var(--anniu_wenzi);
    border: none;
    border-radius: var(--radius_md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition_fast);
    box-shadow: var(--shadow_sm);
    margin-top: 8px;
    position: relative;
    overflow: hidden;
}

.auth-submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.auth-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow_md), var(--shadow_glow);
}

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

.auth-submit-btn:active {
    transform: translateY(0);
}

.auth-link {
    text-align: left;
    margin-top: 20px;
    font-size: 14px;
    color: var(--wenzi_ciru);
    animation: authFadeUp 0.6s 0.4s both;
}

.auth-link a {
    color: var(--anniu);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition_fast);
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Features section below form */
.auth-features {
    margin-top: 48px;
    animation: authFadeUp 0.6s 0.5s both;
}

.auth-features-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--wenzi_ciru);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.auth-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.auth-feature-card {
    background: var(--kajian);
    border-radius: var(--radius_md);
    padding: 16px;
    box-shadow: var(--shadow_sm);
    border: 1px solid var(--biankuang);
    transition: all var(--transition_fast);
    text-align: center;
}

.auth-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow_md);
    border-color: var(--anniu);
}

.auth-feature-icon {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
}

.auth-feature-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--wenzi);
}

/* Responsive */
@media (max-width: 768px) {
    .auth-page {
        padding: 24px 20px;
        justify-content: flex-start;
        padding-top: 60px;
    }

    .auth-content {
        max-width: 100%;
    }

    .auth-form-wrap {
        padding: 24px;
    }

    .auth-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
    .page-container {
        padding: var(--space_3) var(--space_4);
    }

    .auth-card {
        padding: var(--space_6) var(--space_5);
    }

    .info-grid,
    .dev-grid,
    .tts-controls {
        grid-template-columns: 1fr;
    }

    .reader-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .page-table {
        display: block;
        overflow-x: auto;
    }
}