/* 通用样式和重置 */
body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Arial', sans-serif;
    line-height: 1.6;
    background-color: #263248; /* 主背景色：更亮的深蓝色 */
    color: #EBF4F5; /* 默认文本颜色：非常浅的灰色，接近白色 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    color: #EBF4F5;
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
}

a {
    color: #EBF4F5;
    text-decoration: none;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

/* 按钮基础样式 */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

/* 主按钮样式 (霓虹渐变) */
.btn-primary {
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    color: white;
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.6);
}

/* 生成二维码按钮 (特定按钮的渐变样式，与 .btn-primary 类似但独立管理) */
.generate-qr-btn {
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    color: white;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.3);
    display: inline-block;
}
.generate-qr-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.5);
}

/* --- 顶部导航栏 (Header) --- */
.main-header {
    background-color: #1A2238;
    padding: 20px 0;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8em;
    font-weight: bold;
    color: #EBF4F5;
    letter-spacing: 1px;
}

.main-nav ul {
    display: flex;
}

.main-nav ul li {
    margin-left: 30px;
}

.main-nav ul li a {
    font-weight: 500;
    padding: 5px 0;
    position: relative;
    color: #EBF4F5;
}

.main-nav ul li a:hover {
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 移动端导航切换按钮 (默认隐藏) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #EBF4F5;
    font-size: 1.8em;
    cursor: pointer;
}

/* 移动端导航菜单 (JavaScript 控制显示/隐藏) */
@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: #1A2238;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        padding: 20px 0;
        text-align: center;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .main-nav ul li {
        margin: 15px 0;
    }

    .nav-toggle {
        display: block;
    }
}

/* --- 主视觉区 (Hero Section) --- */
.hero-section {
    background-color: #263248;
    padding: 100px 0;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #F8EDD3;
}

.hero-section h1 {
    font-size: 3.8em;
    margin-bottom: 25px;
    letter-spacing: 1px;
    line-height: 1.2;
    color: inherit;
}

.hero-section p {
    font-size: 1.4em;
    max-width: 700px;
    margin: 0 auto 40px auto;
    color: #D1D5DB;
}

/* --- 公共区块标题样式 --- */
.section-title {
    font-size: 3em;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    padding-bottom: 15px;
    color: #EBF4F5;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    border-radius: 2px;
}

/* --- 特点/服务信息区 --- */
.features-section {
    background-color: #263248;
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-item {
    background-color: #3B4A6A;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(138, 43, 226, 0.4);
}

.feature-icon {
    font-size: 3.5em;
    margin-bottom: 20px;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-item h3 {
    font-size: 1.8em;
    margin-bottom: 10px;
    color: #EBF4F5;
}

.feature-item p {
    color: #D1D5DB;
}

/* --- 页脚 (Footer) --- */
.main-footer {
    background-color: #1A2238;
    color: #EBF4F5;
    padding: 60px 0 30px;
    font-size: 0.95em;
    text-align: center;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
    text-align: left;
}

.footer-col h4 {
    font-size: 1.4em;
    margin-bottom: 20px;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #D1D5DB;
}

.footer-col ul li a:hover {
    color: #FF1493;
}

.social-links a {
    color: #EBF4F5;
    font-size: 1.8em;
    margin-right: 15px;
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-links a:hover {
    color: #FF1493;
    transform: translateY(-3px);
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    margin-top: 20px;
    color: #D1D5DB;
}

/* --- TRON 能量租赁与兑换功能区样式 --- */
.tron-feature-section {
    background-color: #263248;
    padding: 80px 0;
}

.tron-header {
    text-align: center;
    margin-bottom: 50px;
}

.tron-header h2 {
    font-size: 3em;
    margin-bottom: 15px;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.tron-header p {
    font-size: 1.2em;
    color: #D1D5DB;
}

.alert-message {
    background-color: #344966;
    color: #FFF8DC;
    border: 1px solid rgba(255, 215, 0, 0.6);
    padding: 15px 25px;
    border-radius: 8px;
    margin-bottom: 50px;
    font-size: 0.95em;
    display: flex;
    align-items: flex-start;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

.alert-message .fas {
    margin-right: 15px;
    font-size: 1.2em;
    color: #FFD700;
}

.tron-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background-color: #1F2E4A;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 0 35px rgba(0, 0, 0, 0.3);
}

.tron-instructions,
.tron-payment-info {
    padding: 20px;
    border-radius: 10px;
    background-color: #3B4A6A;
    box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.15);
}

.header-with-number {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.number-circle {
    width: 40px;
    height: 40px;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: bold;
    font-size: 1.2em;
    margin-right: 15px;
    flex-shrink: 0;
    box-shadow: 0 0 18px rgba(138, 43, 226, 0.6);
}

.tron-instructions h3,
.tron-payment-info h3 {
    font-size: 1.8em;
    margin: 0;
    color: #EBF4F5;
}

.tron-instructions ul {
    list-style: none;
    padding: 0;
}

.tron-instructions ul li {
    background-color: rgba(255, 255, 255, 0.07);
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 0.95em;
    color: #D1D5DB;
    line-height: 1.5;
    position: relative;
    padding-left: 30px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tron-instructions ul li::before {
    content: '\2022';
    color: #FF1493;
    font-size: 1.5em;
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.energy-price-list p {
    font-size: 1.1em;
    margin-bottom: 10px;
    color: #D1D5DB;
}

/* 能量价格中 TRX 数量的高亮样式 */
.energy-price-list p span {
    font-weight: bold;
    color: #FFD700;
    padding: 5px 10px;
    background-color: rgba(255, 215, 0, 0.2);
    border: 1px solid rgba(255, 215, 0, 0.6);
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
    display: inline-block;
    margin-right: 5px;
}

.current-energy-title {
    margin-top: 30px;
    margin-bottom: 10px;
    font-size: 1.3em;
    color: #D1D5DB;
}

.current-energy-value {
    font-size: 2.5em;
    font-weight: bold;
    color: #28A745;
    background-color: rgba(40, 167, 69, 0.15);
    padding: 15px 20px;
    border-radius: 8px;
    text-align: center;
    letter-spacing: 1px;
    margin-bottom: 30px;
    box-shadow: 0 0 12px rgba(40, 167, 69, 0.4);
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.platform-address-title {
    margin-top: 30px;
    margin-bottom: 10px;
    font-size: 1.3em;
    color: #D1D5DB;
}

/* 分割线样式 */
.payment-section-divider {
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    margin: 30px auto; /* 保持居中 */
    width: 80%;
}

/* --- 收款地址显示区域新样式 --- */
.platform-address-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

/* 收款地址外框样式 */
.platform-address-box {
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 15px 20px;
    border-radius: 8px;
    flex-grow: 1;
    min-width: 250px;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* 收款地址字体样式 (在框内) */
.platform-address-box #platformTronAddressDisplay {
    font-size: 1.2em;
    font-weight: bold;
    color: #FFD700; /* 亮黄色，使其非常突出 */
    word-break: break-all;
    background-color: transparent;
    padding: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    transition: none; /* 移除 hover 动画，因为现在没有 hover */
}


/* 复制按钮容器 */
.copy-button-container {
    position: relative;
    display: flex;
    align-items: center;
}

/* 复制按钮样式 (在框外) - 统一管理，移除重复 */
.copy-btn {
    background-color: #3B4A6A;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 1em;
    color: #EBF4F5;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.copy-btn i {
    font-size: 1.1em;
    color: #8A2BE2;
}

.copy-btn:hover {
    background-color: #4A5C7E;
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

/* 复制成功提示样式 */
.copy-success-tooltip {
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #28a745;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8em;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 5px;
}

.copy-success-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* 隐藏不再需要的小二维码容器 */
#qrcode {
    display: none !important;
}

/* --- 二维码模态框样式 --- */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.visible {
    opacity: 1;
}

.modal-content {
    background-color: #1F2E4A;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    width: 90%;
    max-width: 380px; /* 进一步缩小模态框的最大宽度 */
    position: relative;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.visible .modal-content {
    transform: scale(1);
}

.close-button {
    color: #EBF4F5;
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 2em;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close-button:hover,
.close-button:focus {
    color: #FF1493;
    text-decoration: none;
    cursor: pointer;
}

.qr-code-large {
    width: 250px; /* 调整大二维码的尺寸 */
    height: 250px;
    background-color: white;
    padding: 10px;
    border-radius: 8px;
    margin: 20px auto;
    box-shadow: 0 0 15px rgba(0,0,0,0.4);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-address-text {
    color: #EBF4F5;
    font-size: 0.9em; /* 调整模态框内地址字体大小，以适应更小的框 */
    margin-top: 20px;
    word-break: break-all;
    font-family: 'Courier New', monospace;
    background-color: rgba(0, 0, 0, 0.15);
    padding: 8px 15px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- 平台简介与常见问题区样式 --- */
.about-faq-section {
    background-color: #263248;
    padding: 80px 0;
}

.about-faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background-color: #1F2E4A;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 0 35px rgba(0, 0, 0, 0.3);
}

.platform-introduction,
.faq-accordion {
    padding: 20px;
    border-radius: 10px;
    background-color: #3B4A6A;
    box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.15);
}

.platform-introduction h3,
.faq-accordion h3 {
    font-size: 1.8em;
    margin-bottom: 25px;
    color: #EBF4F5;
    text-align: center;
    background: linear-gradient(to right, #8A2BE2, #FF1493);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    width: 100%;
}

.platform-introduction p {
    font-size: 1em;
    line-height: 1.6;
    color: #D1D5DB;
    margin-bottom: 15px;
    text-align: justify;
}

/* FAQ 折叠面板样式 */
.accordion-item {
    margin-bottom: 10px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    overflow: hidden;
}

.accordion-header {
    background-color: rgba(255, 255, 255, 0.1);
    color: #EBF4F5;
    padding: 15px 20px;
    width: 100%;
    text-align: left;
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 1.1em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.accordion-header .accordion-icon {
    font-size: 0.9em;
    transition: transform 0.3s ease;
}

.accordion-header.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    padding: 0 20px;
    background-color: rgba(255, 255, 255, 0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.accordion-content p {
    padding: 15px 0;
    margin: 0;
    color: #D1D5DB;
    font-size: 0.95em;
    line-height: 1.5;
}

/* --- 响应式调整 --- */
@media (max-width: 992px) {
    .tron-content-grid,
    .about-faq-grid {
        grid-template-columns: 1fr;
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5em;
    }
    .hero-section p {
        font-size: 1.1em;
    }
    .section-title {
        font-size: 2em;
    }
    .main-footer .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-col h4 {
        display: block;
        text-align: center;
    }
    .footer-col ul {
        text-align: center;
    }

    .tron-header h2 {
        font-size: 2.2em;
    }
    .tron-header p {
        font-size: 1em;
    }
    .tron-feature-section {
        padding: 60px 0;
    }
    .alert-message {
        padding: 12px 20px;
        font-size: 0.9em;
    }
    .tron-instructions h3,
    .tron-payment-info h3 {
        font-size: 1.5em;
    }
    .current-energy-value {
        font-size: 2em;
        padding: 12px 15px;
    }
    .number-circle {
        width: 35px;
        height: 35px;
        font-size: 1em;
    }
}

@media (max-width: 600px) {
    .modal-content {
        max-width: 95%;
        padding: 20px;
    }
    .qr-code-large {
        width: 250px;
        height: 250px;
    }
    .close-button {
        font-size: 1.8em;
        top: 10px;
        right: 15px;
    }
    .platform-address-wrapper {
        flex-direction: column;
        align-items: stretch;
    }
    .platform-address-box {
        width: 100%;
    }
    .copy-button-container {
        width: 100%;
        justify-content: center;
    }
    .copy-success-tooltip {
        top: -40px;
    }
}

@media (max-width: 480px) {
    .main-header .container {
        flex-wrap: wrap;
        justify-content: center;
    }
    .logo {
        margin-bottom: 15px;
    }
}

/* 确保Logo图片在导航栏中大小合适 */
.main-header .logo img {
    height: 50px; /* 根据你的Logo实际大小调整 */
    width: auto; /* 保持图片比例 */
    vertical-align: middle; /* 垂直居中对齐 */
    margin-right: 10px; /* 如果Logo旁边有文字，可以加一些间距 */
}

/* 如果你需要调整整个logo链接区域的对齐等，可能还需要调整 .main-header .logo */
.main-header .logo {
    display: flex; /* 让图片和可能的文本对齐 */
    align-items: center; /* 垂直居中对齐 */
    text-decoration: none; /* 如果有下划线，可以去掉 */
    color: inherit; /* 继承父元素颜色，如果Logo是SVG且需要继承颜色 */
}