/* 基础样式与变量定义 */
:root {
    --black: #0A0A0A;
    --dark-gray: #121212;
    --medium-gray: #1A1A1A;
    --light-gray: #2A2A2A;
    --gold: #D4AF37;
    --gold-light: #F0E68C;
    --gold-dark: #B8860B;
    --text-light: #F5F5F5;
    --text-muted: #A0A0A0;
    --success: #32CD32;
    --error: #CD5C5C;
    --border-gold: rgba(212, 175, 55, 0.3);
    --shadow-gold: 0 0 15px rgba(212, 175, 55, 0.2);
    --shadow-dark: 0 5px 20px rgba(0, 0, 0, 0.5);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    background-color: var(--black);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* 背景画布 */
#backgroundCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.5;
}

/* 顶部导航 */
.site-header {
    background-color: var(--dark-gray);
    border-bottom: 1px solid var(--border-gold);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-dark);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.logo i {
    color: var(--gold);
    font-size: 1.8rem;
    text-shadow: var(--shadow-gold);
}

.logo span {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gold-light);
    letter-spacing: 1px;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    padding: 5px 0;
    position: relative;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--gold);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--gold);
}

/* 顶部通知条 */
.top-alert {
    background-color: rgba(212, 175, 55, 0.1);
    border-bottom: 1px solid var(--border-gold);
    padding: 12px 0;
}

.alert-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.alert-content i {
    color: var(--gold);
}

.status-online {
    color: var(--success);
    font-weight: 600;
}

.close-alert {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    margin-left: auto;
    transition: color 0.3s ease;
}

.close-alert:hover {
    color: var(--gold);
}

/* 主内容区 */
.main-content {
    padding: 40px 0;
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

/* 左侧主面板 */
.main-panel {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.panel-card {
    background-color: var(--medium-gray);
    border-radius: 12px;
    border: 1px solid var(--border-gold);
    padding: 30px;
    box-shadow: var(--shadow-dark);
    position: relative;
    overflow: hidden;
}

.panel-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.panel-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.panel-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    background: linear-gradient(to right, var(--gold-light), var(--gold), var(--gold-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 1px;
}

.panel-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* 提示框 */
.alert-box {
    background-color: rgba(212, 175, 55, 0.08);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 30px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    border-left: 3px solid var(--gold);
}

.alert-icon {
    color: var(--gold);
    font-size: 1.5rem;
    margin-top: 2px;
}

.alert-text h3 {
    color: var(--gold);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.alert-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* 表单样式 */
.validation-form {
    margin-bottom: 30px;
}

.form-field {
    margin-bottom: 25px;
}

.form-field label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-light);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-field label i {
    color: var(--gold);
}

.form-field input {
    width: 100%;
    padding: 15px 20px;
    background-color: var(--dark-gray);
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-field input:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
    background-color: var(--medium-gray);
}

.form-field input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.submit-btn {
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--dark-gray), var(--light-gray));
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    color: var(--gold);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--medium-gray), var(--light-gray));
    border-color: var(--gold);
    color: var(--gold-light);
    box-shadow: var(--shadow-gold);
    transform: translateY(-2px);
}

/* 结果区域 */
.result-area {
    margin-bottom: 30px;
}

.loading-state, .result-message {
    display: none;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.loading-state {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--gold);
    margin: 0 auto 15px;
    animation: spin 1s linear infinite;
}

.result-message {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.result-message i {
    font-size: 1.8rem;
    margin-top: 3px;
}

.success {
    background-color: rgba(50, 205, 50, 0.1);
    border: 1px solid rgba(50, 205, 50, 0.3);
}

.success i {
    color: var(--success);
}

.error {
    background-color: rgba(205, 92, 92, 0.1);
    border: 1px solid rgba(205, 92, 92, 0.3);
}

.error i {
    color: var(--error);
}

.message-content h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.success h3 {
    color: var(--success);
}

.error h3 {
    color: var(--error);
}

.feature-code {
    font-family: 'Courier New', monospace;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--gold);
    letter-spacing: 1px;
}

/* 下载区域 */
.download-area {
    display: none;
    margin-top: 20px;
}

.download-guides {
    margin-bottom: 20px;
}

.guide-text {
    color: var(--gold);
    margin-bottom: 15px;
    text-align: center;
    font-weight: 500;
}

.guide-links {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.guide-link {
    flex: 1;
    padding: 12px;
    background-color: var(--dark-gray);
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    color: var(--text-light);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.guide-link i {
    color: var(--gold);
}

.guide-link:hover {
    background-color: var(--light-gray);
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
}

.primary-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px;
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: var(--black);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.primary-download:hover {
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.2);
}

/* 页脚 */
.page-footer {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* 右侧信息栏 */
.info-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background-color: var(--medium-gray);
    border-radius: 12px;
    border: 1px solid var(--border-gold);
    padding: 25px;
    box-shadow: var(--shadow-dark);
    position: sticky;
    top: 100px;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-header h3 {
    color: var(--gold);
    font-size: 1.2rem;
}

.sidebar-header i {
    color: var(--gold);
    text-shadow: var(--shadow-gold);
}

.announcement-list {
    list-style: none;
    margin-bottom: 25px;
}

.announcement-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.announcement-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.announcement-list p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot.online {
    background-color: var(--success);
    box-shadow: 0 0 10px var(--success);
}

/* 弹窗样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.modal-content {
    background-color: var(--medium-gray);
    border: 1px solid var(--border-gold);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-dark);
    overflow: hidden;
}

.modal-header {
    background-color: var(--dark-gray);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-gold);
}

.modal-header h2 {
    color: var(--gold);
    font-size: 1.3rem;
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: var(--gold);
}

.modal-body {
    padding: 25px 20px;
}

.modal-body ul {
    list-style-position: inside;
    color: var(--text-muted);
}

.modal-body li {
    margin-bottom: 12px;
    padding-left: 5px;
}

.modal-body li:last-child {
    margin-bottom: 0;
}

.modal-footer {
    padding: 15px 20px;
    background-color: var(--dark-gray);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: right;
}

.confirm-btn {
    padding: 10px 20px;
    background-color: var(--gold);
    color: var(--black);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.confirm-btn:hover {
    background-color: var(--gold-light);
    transform: translateY(-2px);
}

/* 动画效果 */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 900px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar-card {
        position: static;
    }
}

@media (max-width: 600px) {
    .header-container {
        height: 70px;
    }
    
    .logo span {
        font-size: 1.1rem;
    }
    
    .main-nav ul {
        gap: 15px;
    }
    
    .main-nav a span {
        display: none;
    }
    
    .panel-card {
        padding: 20px;
    }
    
    .panel-header h1 {
        font-size: 1.6rem;
    }
    
    .guide-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .alert-box, .result-message {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* Telegram通知群块美化 */
.tg-group {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, rgba(212,175,55,0.12), rgba(212,175,55,0.05));
    padding: 12px 16px;
    border: 1px solid var(--border-gold);
    border-radius: 10px;
    margin: 8px 0 0;
    backdrop-filter: blur(4px);

}

.tg-label {
    font-weight: 600;
    color: var(--gold-light);
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
}
.tg-label i { color: var(--gold); }

.tg-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--gold);
    color: var(--black) !important;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none !important;
    box-shadow: 0 4px 14px rgba(212,175,55,0.3);
    transition: 0.25s;
    position: relative;
    overflow: hidden;
    font-size: 0.9rem;
}
.tg-link-btn i { color: var(--black); }
.tg-link-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(255,255,255,0.5), transparent 60%);
    opacity: 0;
    transform: translateX(-30%);
    transition: 0.5s;
}
.tg-link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(212,175,55,0.4);
}
.tg-link-btn:hover::after {
    opacity: 1;
    transform: translateX(0);
}
.tg-link-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(212,175,55,0.35);
}

@media (max-width: 600px) {
    .tg-group {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 验证区域水平布局 */
.validation-flex {
    display: flex;
    gap: 24px;
    align-items: stretch;
    margin-bottom: 18px;
}
.validation-flex .form-field { flex: 1; }
.validation-flex .tg-group.tg-inline {
    flex: 0 0 240px;
    margin: 0;
    padding: 14px 16px;
    flex-direction: column;
    justify-content: space-between;
}
.tg-group.tg-inline .tg-label {
    font-size: 0.85rem;
    letter-spacing: .5px;
}
.tg-group.tg-inline .tg-link-btn {
    width: 100%;
    justify-content: center;
    font-size: 0.85rem;
    padding: 8px 0 9px;
}
@media (max-width: 900px) {
    .validation-flex { flex-direction: column; }
    .validation-flex .tg-group.tg-inline { flex: 1; }
}

/* 右下角悬浮通知群组件 */
.tg-float {
    position: fixed;
    right: 22px;
    bottom: 24px;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    font-size: 14px;
}
.tg-float-toggle {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--gold), var(--gold-dark));
    border: 1px solid var(--border-gold);
    color: var(--black);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(212,175,55,0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: .3s;
    position: relative;
    overflow: hidden;
}
.tg-float-toggle::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(255,255,255,0.6), transparent 60%);
    opacity: 0;
    transform: translateX(-40%);
    transition: .5s;
}
.tg-float-toggle:hover { transform: translateY(-3px); }
.tg-float-toggle:hover::after { opacity: 1; transform: translateX(0); }
.tg-float-toggle:active { transform: translateY(0); }

.tg-float-label {
    background: rgba(0,0,0,0.55);
    color: var(--gold-light);
    padding: 4px 10px 5px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .5px;
    border: 1px solid var(--border-gold);
    border-radius: 999px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    backdrop-filter: blur(6px);
    animation: floatLabelFade .6s ease;
    user-select: none;
}
@keyframes floatLabelFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }


.tg-float-panel {
    width: 260px;
    background: linear-gradient(135deg, rgba(212,175,55,0.18), rgba(0,0,0,0.6));
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-gold);
    border-radius: 16px;
    padding: 16px 16px 14px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.55), 0 0 12px rgba(212,175,55,0.35);
    position: relative;
    opacity: 0;
    transform: translateY(10px) scale(.96);
    pointer-events: none;
    transition: opacity .35s cubic-bezier(.19,1,.22,1), transform .35s cubic-bezier(.19,1,.22,1);
}
.tg-float-panel.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
.tg-float-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.tg-float-close {
    background: none;
    border: none;
    color: var(--gold-light);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 6px;
    transition: .25s;
}
.tg-float-close:hover { background: rgba(255,255,255,0.08); }
.tg-float-panel .tg-label { font-size: .85rem; }
.tg-float-panel .tg-link-btn { width: 100%; margin-bottom: 10px; }
.tg-copy-btn {
    width: 100%;
    background: var(--dark-gray);
    border: 1px solid var(--border-gold);
    color: var(--gold-light);
    padding: 8px 10px;
    border-radius: 8px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    transition: .25s;
    font-size: .85rem;
}
.tg-copy-btn i { color: var(--gold-light); }
.tg-copy-btn:hover { background: var(--medium-gray); color: var(--gold); border-color: var(--gold); }
.tg-copy-btn:active { transform: translateY(1px); }
.tg-hint { margin: 6px 0 0; font-size: .65rem; color: var(--text-muted); text-align: center; }

@media (max-width: 600px) {
    .tg-float { right: 12px; bottom: 14px; }
    .tg-float-panel { width: 220px; padding: 14px 14px 12px; }
    .tg-float-toggle { width: 50px; height: 50px; font-size: 1.3rem; }
}