/* =========================================
   1. 全局配置 & 变量
   ========================================= */
:root {
    --primary-color: #F37021;
    --primary-glow: rgba(243, 112, 33, 0.4);
    --tech-cyan: #00f0ff;
    --tech-cyan-dim: rgba(0, 240, 255, 0.15);
    --tech-blue: #0056b3;
    --text-main: #333333;
    --text-light: #ffffff;
    --text-gray: #666666;
    --bg-page: #ffffff;
    --bg-section: #f8f9fa;
    --bg-dark-glass: rgba(11, 16, 21, 0.96);
    --border-line: #e9ecef;
    --font-tech: ui-monospace, SFMono-Regular, "SF Mono", "Cascadia Code", "Consolas", "Courier New", monospace;
    --font-base: 'Segoe UI', 'Roboto', Helvetica, Arial, sans-serif;
}

body {
    font-family: var(--font-base);
    margin: 0; padding: 0; color: var(--text-main);
    background-color: var(--bg-page); overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
ul { list-style: none; padding: 0; margin: 0; }
button { outline: none; cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--primary-color); outline-offset: 2px; }

/* 背景 */
.bg-decorations { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; background-color: #021019; overflow: hidden; }

/* =========================================
   3. 顶部导航
   ========================================= */
.top-bar { background-color: #2c3e50; color: #ccc; padding: 8px 40px; text-align: right; font-size: 12px; position: relative; z-index: 1002; }
.lang-selector { position: relative; display: inline-block; cursor: pointer; padding: 4px 10px; border-radius: 4px; user-select: none; }
.lang-selector:hover { background-color: rgba(255,255,255,0.1); color: #fff; }
.lang-dropdown { display: none; position: absolute; right: 0; top: 130%; background: #fff; border: 1px solid var(--border-line); z-index: 1000; min-width: 140px; box-shadow: 0 10px 30px rgba(0,0,0,0.15); border-radius: 6px; text-align: left; padding: 5px 0; }
.lang-dropdown.show { display: block; animation: fadeIn 0.2s; }
.lang-dropdown li { padding: 8px 20px; border-bottom: 1px solid #f5f5f5; color: var(--text-main); font-size: 13px; transition: 0.2s; }
.lang-dropdown li:hover { background-color: var(--bg-section); color: var(--primary-color); padding-left: 25px; }

.main-header { background-color: rgba(255, 255, 255, 0.98); backdrop-filter: blur(10px); padding: 0 50px; height: 80px; display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 1001; box-shadow: 0 4px 20px rgba(0,0,0,0.03); border-bottom: 1px solid rgba(0,0,0,0.03); }
.logo { font-size: 28px; font-weight: 900; color: #1a1a1a; letter-spacing: 1px; font-family: 'Arial Black', sans-serif; position: relative; overflow: visible; }
.logo span { color: var(--primary-color); }
.logo::after { content: '🎅'; position: absolute; top: -15px; right: -10px; font-size: 24px; transform: rotate(15deg); filter: drop-shadow(0 0 5px rgba(255,0,0,0.5)); animation: hatBounce 2s infinite ease-in-out; }
@keyframes hatBounce { 0%, 100% { transform: rotate(15deg) translateY(0); } 50% { transform: rotate(25deg) translateY(-3px); } }

@media screen and (min-width: 769px) {
    .nav-menu { position: absolute; left: 50%; transform: translateX(-50%); display: flex; height: 100%; align-items: center; gap: 50px; }
    .nav-item { position: relative; height: 100%; display: flex; align-items: center; cursor: pointer; }
    .nav-link { font-size: 15px; font-weight: 700; color: #444; position: relative; padding: 5px 0; text-transform: uppercase; }
    .nav-link::after { content: ''; position: absolute; width: 0; height: 3px; bottom: -24px; left: 50%; transform: translateX(-50%); background-color: var(--primary-color); transition: width 0.3s ease; box-shadow: 0 -2px 10px var(--primary-glow); }
    .nav-item:hover .nav-link { color: var(--primary-color); }
    .nav-item:hover .nav-link::after { width: 100%; }
    .mobile-menu-toggle { display: none; }
}

/* =========================================
   4. 二级菜单
   ========================================= */
@media screen and (min-width: 769px) {
    .dropdown-menu { display: none; position: absolute; top: 80px; left: 50%; transform: translateX(-50%); background: var(--bg-dark-glass); backdrop-filter: blur(12px); border: 1px solid var(--tech-cyan-dim); border-top: 2px solid var(--primary-color); min-width: 400px; padding: 0; z-index: 1002; box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6); clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%); border-radius: 0 0 10px 0; animation: slideDown 0.3s cubic-bezier(0.2, 0.8, 0.2, 1); }
    .nav-item:hover .dropdown-menu { display: block; }
    .product-group { display: flex; justify-content: space-between; align-items: center; padding: 16px 25px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); position: relative; overflow: hidden; }
    .product-group:hover { background: linear-gradient(90deg, rgba(243, 112, 33, 0.1) 0%, transparent 100%); padding-left: 35px; }
    .product-group::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--primary-color); opacity: 0; transition: 0.3s; box-shadow: 0 0 10px var(--primary-color); }
    .product-group:hover::before { opacity: 1; }
    .product-title { font-family: var(--font-base); font-weight: 700; font-size: 16px; color: #fff; letter-spacing: 1px; text-shadow: 0 0 10px rgba(255, 255, 255, 0.2); }
    .product-links { font-size: 12px; color: rgba(255, 255, 255, 0.4); display: flex; gap: 15px; }
    .product-links a { color: rgba(255, 255, 255, 0.6); font-weight: 500; text-transform: uppercase; position: relative; transition: 0.3s; }
    .product-links a:hover { color: var(--primary-color); text-shadow: 0 0 8px var(--primary-color); }
}

@media screen and (max-width: 768px) {
    .main-header { padding: 0 20px; height: 70px; }
    .mobile-menu-toggle { display: block; font-size: 20px; color: var(--text-main); padding: 8px 12px; border: 1px solid rgba(0,0,0,0.1); border-radius: 6px; background: rgba(255,255,255,0.5); }
    .nav-menu { display: none; position: absolute; top: 70px; left: 0; width: 100%; background: rgba(255, 255, 255, 0.98); flex-direction: column; box-shadow: 0 20px 40px rgba(0,0,0,0.15); z-index: 99; }
    .nav-menu.active { display: flex; }
    .nav-item { width: 100%; text-align: left; border-bottom: 1px solid #eee; }
    .nav-link { display: block; padding: 18px 25px; color: #333; font-weight: 600; }
    .dropdown-menu { display: none; position: static; background: #f4f6f8; box-shadow: inset 0 5px 10px rgba(0,0,0,0.05); padding: 0; border-left: 4px solid #ddd; clip-path: none; border: none; min-width: auto; }
    .product-group { display: block; padding: 12px 30px; border-bottom: 1px solid #eee; }
    .product-title { color: #555; font-size: 14px; display: block; margin-bottom: 5px; text-shadow: none; }
    .product-links { display: flex; gap: 10px; font-size: 13px; }
    .product-links a { color: #888; }
    .product-links a:hover { color: var(--primary-color); }
}

/* =========================================
   5. Hero & Content
   ========================================= */
.hero-section { position: relative; background: transparent; padding: 140px 20px 160px; text-align: center; color: var(--text-light); z-index: 1; overflow: hidden; }
#particleCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
.hero-section h1, .hero-section p, .search-container { position: relative; z-index: 10; }
.hero-section h1 { margin: 0 0 20px; font-size: 3.5em; font-weight: 800; color: #fff; text-shadow: 0 5px 15px rgba(0,0,0,0.8); letter-spacing: 1px; }
.hero-section h1 span { color: var(--primary-color); position: relative; display: inline-block; }
.hero-section h1 span::after { content: ''; position: absolute; bottom: 5px; left: 0; width: 100%; height: 4px; background-color: var(--primary-color); opacity: 0.3; border-radius: 2px; }
.hero-section p { color: rgba(255,255,255,0.9); text-shadow: 0 2px 5px rgba(0,0,0,0.5); font-size: 1.25em; margin-bottom: 50px; }

.search-container { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 35px; }
.search-input { width: 100%; max-width: 450px; padding: 15px 30px; border-radius: 50px; background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.2); color: #ffffff; font-size: 16px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); transition: all 0.3s ease; }
.search-input::placeholder { color: rgba(255, 255, 255, 0.7); }
.search-input:focus { background: rgba(255, 255, 255, 0.15); border-color: var(--primary-color); box-shadow: 0 0 20px var(--primary-glow); width: 480px; }
.search-btn { padding: 15px 35px; border-radius: 50px; border: none; background: linear-gradient(135deg, var(--primary-color) 0%, #ff9a44 100%); color: white; font-weight: bold; transition: all 0.3s ease; }
.search-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-glow); }

.content-container { display: flex; justify-content: center; flex-wrap: wrap; gap: 30px; padding: 60px 20px; max-width: 1200px; margin: -50px auto 0; position: relative; z-index: 10; }
.card { background: rgba(15, 25, 35, 0.75); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.1); width: 320px; padding: 40px; border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,0.3); text-align: left; transition: 0.4s; position: relative; overflow: hidden; }
.card:hover { transform: translateY(-10px); background: rgba(15, 25, 35, 0.9); box-shadow: 0 20px 50px rgba(0,0,0,0.5); border-color: var(--primary-color); }
.card::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, transparent, var(--primary-color), transparent); transform: scaleX(0); transition: 0.4s; }
.card:hover::after { transform: scaleX(1); }
.card h3 { color: #ffffff; margin-top: 0; font-size: 1.5em; letter-spacing: 1px; }
.card p { color: rgba(255, 255, 255, 0.7); font-size: 14px; margin-bottom: 30px; min-height: 45px; }
.card a { color: var(--primary-color); font-weight: bold; font-size: 14px; }

/* =========================================
   7. 弹窗样式
   ========================================= */
.modal { display: none; position: fixed; z-index: 9999; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.7); backdrop-filter: blur(5px); }

/* 通用深色弹窗 */
#firmwareModal .modal-content, #manualModal .modal-content, #searchChoiceModal .modal-content, #contactModal .modal-content {
    background: var(--bg-dark-glass); border: 1px solid rgba(0, 240, 255, 0.3); box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
    color: #fff; border-radius: 4px; margin: 8% auto; width: 90%; max-width: 500px;
    position: relative; overflow: hidden; animation: modalPop 0.3s;
}
.modal-header { background: rgba(0, 240, 255, 0.05); border-bottom: 1px solid rgba(0, 240, 255, 0.2); padding: 15px 25px; display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { margin: 0; color: var(--tech-cyan); font-family: var(--font-tech); text-transform: uppercase; font-size: 18px; font-weight: 700; }
.close-btn { color: rgba(255,255,255,0.5); font-size: 28px; cursor: pointer; }
.modal-body { padding: 25px; max-height: 500px; overflow-y: auto; }

.firmware-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 15px; margin-bottom: 8px; background: rgba(255, 255, 255, 0.02); border: 1px solid rgba(255, 255, 255, 0.05); transition: 0.2s; }
.firmware-item:hover { background: rgba(0, 240, 255, 0.05); border-color: rgba(0, 240, 255, 0.3); }
.fw-version { color: #fff; font-family: var(--font-tech); font-weight: 600; }
.fw-date { color: rgba(255, 255, 255, 0.5); font-size: 12px; margin-left: 10px; }
.fw-download-btn { background: transparent; border: 1px solid var(--primary-color); color: var(--primary-color); padding: 5px 15px; border-radius: 2px; font-size: 11px; font-weight: 700; transition: 0.3s; }
.fw-download-btn:hover { background: var(--primary-color); color: #000; }

/* Contact Modal */
#contactModal .modal-content { max-width: 700px; margin: 15% auto; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 30px 20px; background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 8px; color: #ccc; transition: all 0.4s; }
.contact-card:hover { transform: translateY(-5px); background: rgba(255, 255, 255, 0.06); }
.contact-card .icon { font-size: 32px; margin-bottom: 15px; }

/* Search Choice */
#searchResultBtns .search-btn { width: 100%; padding: 16px; margin-bottom: 10px; background: rgba(0,0,0,0.3); border: 1px solid var(--border-line); color: #ccc; }
#searchResultBtns button:nth-child(1):hover { background: var(--tech-cyan); color: #000; }
#searchResultBtns button:nth-child(2):hover { background: var(--primary-color); color: #000; }

.site-footer { text-align: center; padding: 40px 20px; background: #2c3e50; color: #ccc; margin-top: 80px; }
.site-footer a:hover { color: var(--primary-color); }

/* Update Toast */
.update-toast { position: fixed; bottom: 30px; right: -400px; width: 320px; background: rgba(11, 16, 21, 0.95); backdrop-filter: blur(12px); border: 1px solid var(--tech-cyan); border-left: 4px solid var(--primary-color); border-radius: 6px; z-index: 9999; font-family: var(--font-base); transition: right 0.5s; overflow: hidden; }
.update-toast.show { right: 30px; }
.toast-header { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; background: rgba(255, 255, 255, 0.03); border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.toast-title { color: var(--primary-color); font-size: 12px; font-weight: 800; animation: blinkText 2s infinite; }
.close-toast { color: #888; cursor: pointer; font-size: 20px; }
.toast-body { padding: 20px; }
.toast-model { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 5px; font-family: var(--font-tech); }
.toast-version { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
#toastVer { color: var(--tech-cyan); font-family: var(--font-tech); font-size: 14px; }
.toast-tag { background: var(--primary-color); color: #fff; font-size: 10px; padding: 2px 6px; border-radius: 2px; }
.toast-date { color: #888; font-size: 12px; margin-bottom: 15px; }
.toast-btn { display: block; width: 100%; text-align: center; padding: 10px 0; border: 1px solid var(--tech-cyan); color: var(--tech-cyan); font-weight: bold; transition: 0.3s; }
.toast-btn:hover { background: var(--tech-cyan); color: #000; }

@keyframes blinkText { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
@keyframes modalPop { 0% { opacity: 0; transform: scale(0.95); } 100% { opacity: 1; transform: scale(1); } }
@keyframes slideDown { 0% { opacity: 0; transform: translate(-50%, -10px); } 100% { opacity: 1; transform: translate(-50%, 0); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }

/* =========================================
   ★★★ 11. PointSKY 现代实用版样式 (移动端修复) ★★★
   ========================================= */

#toolModal { display: none; justify-content: center; align-items: center; background: rgba(0,0,0,0.5); backdrop-filter: blur(5px); z-index: 10000; }

/* 弹窗主体 - 针对移动端优化 */
.modern-modal {
    background: #ffffff; width: 90%; max-width: 900px;
    border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    padding: 0; overflow: hidden; color: #333;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex; flex-direction: column; /* 让头部固定，身体滚动 */
    max-height: 85vh; /* 避免移动端太高 */
}

/* 头部 */
.modern-header {
    background: #f8f9fa; padding: 15px 25px; border-bottom: 1px solid #eee;
    display: flex; justify-content: space-between; align-items: center;
    flex-shrink: 0; /* 防止头部被压缩 */
}
.header-title h3 { margin: 0; font-size: 18px; font-weight: 700; color: #2c3e50; }
.header-title span { font-size: 12px; background: #e0e0e0; padding: 2px 6px; border-radius: 4px; color: #666; margin-left: 8px; }
.modern-close { font-size: 28px; color: #aaa; cursor: pointer; }

/* 内容区域 */
.modern-body { padding: 30px; overflow-y: auto; flex-grow: 1; }
.modern-grid { display: flex; gap: 40px; }
.panel-settings { flex: 1; display: flex; flex-direction: column; gap: 20px; }
.panel-dashboard { flex: 1; background: #fafbfc; border-radius: 8px; padding: 25px; border: 1px solid #f0f0f0; }

/* 表单控件 */
.section-label { display: block; font-size: 13px; font-weight: 700; color: #555; margin-bottom: 8px; }
.modern-select, .modern-input { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 6px; font-size: 14px; box-sizing: border-box; }
.modern-select:focus, .modern-input:focus { border-color: var(--primary-color); outline: none; }
.sat-info-display { font-size: 12px; color: #666; background: #f4f4f4; padding: 8px; border-radius: 4px; margin-top: 5px; }
.label-row { display: flex; justify-content: space-between; margin-bottom: 8px; }
.text-btn { background: none; border: none; color: var(--primary-color); cursor: pointer; font-size: 12px; font-weight: 600; padding: 0; }
.input-grid { display: flex; gap: 10px; flex-wrap: wrap; /* 允许换行 */ }
.input-group { flex: 1; position: relative; min-width: 100px; }
.input-tag { display: none !important; }
.modern-input { padding-left: 12px !important; }

.modern-btn-main { width: 100%; background: var(--primary-color); color: #fff; border: none; padding: 14px; border-radius: 8px; font-size: 15px; font-weight: bold; cursor: pointer; box-shadow: 0 4px 10px rgba(243,112,33,0.3); transition: 0.2s; }
.modern-btn-main:hover { background: #e06010; }

/* 仪表盘 */
.result-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.res-card { background: #fff; padding: 12px; border-radius: 8px; border: 1px solid #eee; text-align: center; }
.res-card:last-child { grid-column: span 2; }
.res-label { display: block; font-size: 11px; color: #888; margin-bottom: 4px; }
.res-val { display: block; font-size: 18px; font-weight: 700; color: #333; }
.res-val.highlight { color: var(--primary-color); }

/* 指南针 */
.compass-wrapper { text-align: center; position: relative; }
.compass-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.compass-label { font-size: 12px; font-weight: bold; color: #aaa; letter-spacing: 1px; }
.compass-toggle { background: #fff; border: 1px solid #ddd; color: #555; font-size: 11px; padding: 4px 10px; border-radius: 12px; cursor: pointer; transition: 0.2s; }
.compass-toggle:hover { border-color: var(--primary-color); color: var(--primary-color); }
.compass-toggle.active { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }

.modern-compass { width: 180px; height: 180px; margin: 0 auto; border: 6px solid #e0e0e0; border-radius: 50%; position: relative; background: #fff; overflow: hidden; }
.compass-dial { width: 100%; height: 100%; position: absolute; top: 0; left: 0; transition: transform 0.1s linear; }
.c-txt { position: absolute; font-size: 14px; font-weight: bold; color: #ccc; }
.c-txt.n { top: 5px; left: 50%; transform: translateX(-50%); color: var(--primary-color); }
.c-txt.e { right: 10px; top: 50%; transform: translateY(-50%); }
.c-txt.s { bottom: 5px; left: 50%; transform: translateX(-50%); }
.c-txt.w { left: 10px; top: 50%; transform: translateY(-50%); }
.compass-needle-wrap { width: 100%; height: 100%; position: absolute; top: 0; left: 0; transition: transform 0.5s ease-out; }
.needle-body { width: 4px; height: 50%; background: #333; position: absolute; top: 0; left: 50%; margin-left: -2px; border-radius: 2px; }
.needle-head { width: 0; height: 0; border-left: 6px solid transparent; border-right: 6px solid transparent; border-bottom: 10px solid var(--primary-color); position: absolute; top: 0; left: 50%; margin-left: -6px; margin-top: -5px; }

.status-badge { display: inline-block; font-size: 12px; padding: 6px 15px; border-radius: 20px; margin-top: 15px; font-weight: 600; }
.status-badge.error { background: #ffebee; color: #d32f2f; }
.status-badge.success { background: #e8f5e9; color: #2e7d32; }

/* 📱 移动端特别修复 */
@media screen and (max-width: 768px) {
    .modern-grid { flex-direction: column; gap: 25px; } /* 垂直排列 */
    .modern-body { padding: 15px; } /* 减少内边距 */
    
    /* 优化输入框显示，防止太挤 */
    .input-grid { gap: 8px; }
    .input-group { min-width: 48%; } /* 一行两个 */
    .full-width-mobile { min-width: 100%; margin-top: 5px; } /* 高度独占一行 */
    
    .panel-dashboard { padding: 15px; }
    .modern-header { padding: 12px 15px; }
}