@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --primary-light: rgba(52, 152, 219, 0.1);
    --secondary-color: #2c3e50;
    --dark-color: #2c3e50;
    --light-color: #f8fafc;
    --accent-color: #e74c3c;
    --text-color: #2c3e50;
    --text-light: #fff;
    --text-gray: #7f8c8d;
    --border-color: #e6e9f0;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

/* 隐藏元素 */
.hidden {
    display: none !important;
}

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

body {
    font-family: 'Manrope', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
    background-color: #f5f7fa;
}

/* 背景层优化 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background: linear-gradient(135deg, #7184d6 0%, #764ba2 100%);
    background: url('img/beijing.jpg') no-repeat center center, linear-gradient(135deg, #5e7194 0%, #4d6998 100%);
    background-size: cover;
    background-blend-mode: overlay;
    filter: blur(2px) brightness(0.7);
    transform: scale(1.1);
}

/* 导航栏优化 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    padding: 12px 0;
    background: rgba(44, 62, 80, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    letter-spacing: 1px;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 12px;
    object-fit: contain;
    display: inline-block;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.nav {
    display: flex;
    gap: 48px;
}

.nav a {
    position: relative;
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition);
    letter-spacing: 0.5px;
    opacity: 0.9;
}

.nav a:hover {
    color: #fff;
    opacity: 1;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav a:hover::after,
.nav a.active::after {
    width: 24px;
}

.nav a.active {
    opacity: 1;
    font-weight: 600;
}

/* 登录按钮优化 */
.btn-login {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-light);
    padding: 10px 24px;
    border-radius: 40px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    letter-spacing: 0.5px;
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

#login-button {
    cursor: pointer;          /* 确保登录按钮有点击效果_手型 */
    padding: 6px 16px;
    font-size: 12px;
    border-color: rgba(255, 255, 255, 0.35);
}

/* 用户信息区域 */
.user-info {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info > span {
    display: flex;
    align-items: center;
    padding: 6px 16px 6px 12px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: var(--transition);
    cursor: pointer;
}

.user-info > span:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.3);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.5);
    margin-right: 8px;
}

.user-avatar-fallback {
    color: #fff;
    margin-right: 8px;
    font-size: 20px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

/* 下拉菜单优化 */
.user-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 200px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1200;
    padding: 8px;
    animation: fadeInDown 0.25s ease;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 24px;
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.98);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    transform: rotate(45deg);
}

.user-menu button {
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    font-size: 14px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-menu button i {
    width: 18px;
    color: var(--primary-color);
    font-size: 16px;
}

.user-menu button:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding-left: 20px;
}

/* 英雄区域优化 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 100px 0 60px;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 40px;
}

.hero-content {
    flex: 1;
    color: var(--text-light);
    max-width: 600px;
}

.hero-content h1 {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff 0%, #f0f9ff 100%);  /* 渐变文字 */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 5px 20px rgba(52,152,219,0.3);
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.7;
    text-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
    letter-spacing: 0.5px;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(52, 152, 219, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: none;
    margin-left: 16px;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* 登录框优化 */
.login-box {
    position: fixed;
    top: 8%;
    right: 8%;
    left: auto;
    transform: translateY(-50%);
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.9));
    backdrop-filter: blur(22px) saturate(140%);
    -webkit-backdrop-filter: blur(22px) saturate(140%);
    padding: 44px 42px;
    border-radius: 28px;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.28);
    width: 420px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.6);
    z-index: 2000;
}

.login-box::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 28px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(14, 165, 233, 0.18), rgba(255, 255, 255, 0));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
    pointer-events: none;
}

.login-close {
    position: absolute;
    top: 16px;                    /* 调整关闭按钮位置 */
    right: 16px;            /* 调整关闭按钮位置 */
    width: 28px;                     /* 调整关闭按钮大小 */
    height: 28px;                     /* 调整关闭按钮大小 */
    background: rgba(15, 23, 42, 0.06);
    color: #475569;
    border: 1px solid rgba(148, 163, 184, 0.45);
    border-radius: 10px;
    cursor: pointer;
    box-shadow: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.login-close:hover {
    background: rgba(15, 23, 42, 0.12);
    transform: rotate(8deg) scale(1.02);
}

/* 登录弹窗背景虚化 */
.login-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 1500;
}

/* 注册返回按钮美化 */
.register-back-top {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: rgba(15, 23, 42, 0.06);
    color: #475569;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: none;
}

.register-back-top:hover {
    background: rgba(15, 23, 42, 0.12);
    transform: translateY(-1px);
}

.login-box h2 {
    text-align: center;
    margin-bottom: 0;
    color: #0f172a;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: none;
}

.auth-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 26px;
}

.auth-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.88));
    color: #fff;
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.22);
    font-size: 18px;
}

.auth-step {
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    color: #475569;
    border: 1px solid rgba(148, 163, 184, 0.45);
}

/* 表单优化 */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 12.5px;
    color: #475569;
    font-weight: 600;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    font-size: 15px;
    transition: var(--transition);
    background: #f8fafc;
    color: #0f172a;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8;
}

.code-row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: nowrap;
}

.code-row input {
    flex: 1 1 auto;
    min-width: 0;
    padding: 12px 14px;
}

.send-code-btn {
    width: auto;
    flex: 0 0 auto;
    min-width: 92px;
    padding: 8px 10px;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #d5dee9;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.send-code-btn:hover {
    background: #e8eef6;
    border-color: #b8c2cf;
}

.send-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: #2563eb;
    outline: none;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
    background: #fff;
}

.form-group button {
    width: 100%;
    padding: 14px;
    background: #0f172a;
    color: #fff;
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.18);
}

.form-group button:hover,
.form-group button:focus-visible,
.form-group button:active {
    background: linear-gradient(135deg, #1d4ed8, #2563eb, #0ea5e9);
    transform: translateY(-2px);
    box-shadow: 0 18px 34px rgba(37, 99, 235, 0.3);
}

.form-group .send-code-btn {
    width: auto;
    padding: 8px 10px;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #d5dee9;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: none;
}

.form-group .send-code-btn:hover {
    background: #e8eef6;
    border-color: #b8c2cf;
    transform: translateY(-1px);
    box-shadow: none;
}

.form-footer {
    text-align: center;
    margin-top: 8px;
}

.form-footer p {
    font-size: 13px;
    color: #64748b;
}

.form-footer a {
    color: #0f172a;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(15, 23, 42, 0.2);
    padding-bottom: 2px;
    transition: var(--transition);
}

.form-footer a:hover {
    color: #2563eb;
    border-bottom-color: rgba(37, 99, 235, 0.5);
}

/* 容器内提示样式 */
.inline-notice {
    margin: 12px 0 16px;
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.5;
    border: 1px solid transparent;
}

.inline-notice--info {
    background: #eef2ff;
    color: #334155;
    border-color: #c7d2fe;
}

.inline-notice--success {
    background: #ecfdf3;
    color: #166534;
    border-color: #bbf7d0;
}

.inline-notice--warning {
    background: #fff7ed;
    color: #9a3412;
    border-color: #fed7aa;
}

.inline-notice--error {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fecaca;
}

/* 特色区域优化 */
.features {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
}

.features-fab {
    position: absolute;
    left: 24px;
    bottom: 50px;/* 调整悬浮按钮位置 */
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    transition: var(--transition);
    z-index: 8;
}

.features-fab i {
    font-size: 18px;
}

.features-fab:hover {
    transform: translateY(-2px) scale(1.02);
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.5);
}

.features-panel {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 2100;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s ease, visibility 0s linear 0.28s;
}

.features-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.32s ease;
}

.features-panel-card {
    width: min(520px, 92vw);
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 20px;
    padding: 28px 24px 24px;
    color: #fff;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    position: relative;
    transform: translateY(14px) scale(0.98);
    opacity: 0;
    transition: transform 0.32s ease, opacity 0.32s ease;
}

.features-panel.is-open .features-panel-card {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.features-panel-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.features-panel-body .features-list {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: 16px;
}

.features-panel-body .feature-item {
    padding: 8px 6px;
    justify-content: flex-start;
}

.features-panel-body .feature-item i {
    font-size: 20px;
}

.features-panel-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.features-panel-close:hover {
    background: rgba(255, 255, 255, 0.28);
    transform: rotate(6deg);
}

.features-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.features-list {
    display: flex;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 60px;
    padding: 16px 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    list-style: none;
}

.feature-item {
    display: flex;
    align-items: center;
    color: #fff;
    padding: 0 16px;
}

.feature-item i {
    font-size: 24px;
    margin-right: 12px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.feature-item span {
    font-size: 15px;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* 内容区域优化 */
.section {
    padding: 100px 0;
    background: var(--text-light);
}

.section-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 40px;
    color: var(--dark-color);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* 卡片优化 */
.zhichan-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    width: 100%;
}

.zhichan-card {
    background: #fff;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.03);
}

.zhichan-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(52, 152, 219, 0.1);
}

.zhichan-card-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.zhichan-card-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.1));
}

.zhichan-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.zhichan-card:hover .zhichan-card-img img {
    transform: scale(1.08);
}

.zhichan-card-content {
    padding: 28px;
}

.zhichan-card-content h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--dark-color);
    font-weight: 700;
}

.zhichan-card-content p {
    color: var(--text-gray);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 15px;
}

/* 智销板块优化 */
.zhixiao-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.zhixiao-content,
.zhiscreen-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.zhixiao-img,
.zhiscreen-img {
    flex: 1;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.zhixiao-img:hover,
.zhiscreen-img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.zhixiao-img img,
.zhiscreen-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.zhixiao-text,
.zhiscreen-text {
    flex: 1;
}

.zhixiao-text h3,
.zhiscreen-text h3 {
    font-size: 32px;
    margin-bottom: 24px;
    color: var(--dark-color);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.zhixiao-text ul,
.zhiscreen-text ul {
    margin-bottom: 32px;
    list-style: none;
}

.zhixiao-text ul li,
.zhiscreen-text ul li {
    margin-bottom: 16px;
    position: relative;
    padding-left: 32px;
    font-size: 16px;
    color: var(--text-color);
    line-height: 1.6;
}

.zhixiao-text ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--primary-color);
    background: rgba(52, 152, 219, 0.1);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.zhiscreen-text ul li::before {
    content: '\f108';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--primary-color);
    background: rgba(52, 152, 219, 0.1);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* 智管板块优化 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-box {
    text-align: center;
    padding: 40px 30px;
    background: #fff;
    border-radius: var(--border-radius-xl);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.03);
    box-shadow: var(--shadow-sm);
}

.feature-box:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-light);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-box i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 24px;
    transition: var(--transition);
}

.feature-box:hover i {
    color: #fff;
    transform: scale(1.1);
}

.feature-box h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--dark-color);
    transition: var(--transition);
    font-weight: 700;
}

.feature-box:hover h3,
.feature-box:hover p {
    color: var(--text-light);
}

.feature-box p {
    color: var(--text-gray);
    transition: var(--transition);
    line-height: 1.7;
    font-size: 15px;
}

/* ==================== 用户管理面板美化 ==================== */
.panel-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 1500;
}

#blank-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 1000px;
    height: auto;
    max-height: 85vh;
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.9));
    backdrop-filter: blur(22px) saturate(140%);
    -webkit-backdrop-filter: blur(22px) saturate(140%);
    border-radius: 28px;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.28);
    z-index: 2000;
    display: flex;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.6);
    animation: modalFadeIn 0.3s ease;
}

#blank-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 28px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(14, 165, 233, 0.18), rgba(255, 255, 255, 0));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
    pointer-events: none;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* 左侧导航栏 */
#blank-container .nav-bar {
    flex: 0 0 240px;
    background: linear-gradient(165deg, var(--dark-color), #1a2634);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    padding: 40px 20px;
    border-radius: 24px 0 0 24px;
    position: relative;
    overflow-y: auto;
}

#blank-container .nav-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.05"><path fill="white" d="M20 20 L30 20 L25 30 Z"/></svg>');
    pointer-events: none;
}

#blank-container .nav-bar h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 1px;
}

#blank-container .nav-bar button {
    width: 100%;
    margin-bottom: 8px;
    padding: 14px 20px;
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

#blank-container .nav-bar button i {
    width: 20px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
}

#blank-container .nav-bar button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding-left: 24px;
}

#blank-container .nav-bar button:hover i {
    color: #fff;
}

#blank-container .nav-bar button.active {
    background: rgba(52, 152, 219, 0.5);
    color: #fff;
    border-left: 4px solid #fff;
}

/* 右侧内容区域 */
#blank-container .form-container {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
    background: #fff;
}

#blank-container .form-container h2 {
    text-align: left;
    font-size: 26px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

#blank-container .form-container h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary-color);
}

/* 工单表格美化 */
#blank-container .form-container table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

#blank-container .form-container th {
    text-align: left;
    padding: 16px;
    background: var(--light-color);
    color: var(--dark-color);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

#blank-container .form-container td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 15px;
}

#blank-container .form-container tr:hover td {
    background: rgba(52, 152, 219, 0.02);
}

/* 卡密输入区域美化 */
#blank-container .service-code-container {
    display: flex;
    gap: 16px;
    align-items: center;
    margin: 24px 0;
    padding: 20px;
    background: var(--light-color);
    border-radius: 16px;
}

#blank-container .service-code-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: var(--transition);
    background: #fff;
}

#blank-container .service-code-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.1);
    outline: none;
}

#blank-container .service-code-btn {
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

#blank-container .service-code-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
}

#blank-container .service-code-btn:disabled {
    opacity: 0.6;
    transform: none;
    box-shadow: none;
}

/* 到期时间卡片 */
#blank-container .expiry-card {
    background: linear-gradient(135deg, #f6f9fc, #edf2f7);
    padding: 24px;
    border-radius: 16px;
    margin-bottom: 24px;
    border: 1px solid rgba(52, 152, 219, 0.1);
}

#blank-container .expiry-card p {
    margin: 8px 0;
    font-size: 16px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

#blank-container .expiry-card i {
    color: var(--primary-color);
    font-size: 18px;
}

/* 关闭按钮 */
#blank-container .close-button {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 28px;
    height: 28px;
    background: rgba(15, 23, 42, 0.06);
    color: #475569;
    border: 1px solid rgba(148, 163, 184, 0.45);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 10;
}

#blank-container .close-button:hover {
    background: rgba(15, 23, 42, 0.12);
    transform: rotate(8deg) scale(1.02);
}

/* 退出登录按钮组 */
#blank-container .logout-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 32px;
}

#blank-container .btn-confirm,
#blank-container .btn-cancel {
    padding: 14px 40px;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

#blank-container .btn-confirm {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    box-shadow: 0 8px 16px rgba(52, 152, 219, 0.2);
}

#blank-container .btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(52, 152, 219, 0.3);
}

#blank-container .btn-cancel {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

#blank-container .btn-cancel:hover {
    background: rgba(52, 152, 219, 0.05);
    transform: translateY(-2px);
}

/* 联系我们优化 */
.contact-section {
    background: linear-gradient(135deg, var(--dark-color), #1a2634);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.contact-section .section-title h2 {
    color: #fff;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.05"><circle cx="50" cy="50" r="40" stroke="white" stroke-width="1" fill="none"/></svg>');
    pointer-events: none;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    position: relative;
    z-index: 1;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 24px;
    color: #fff;
    font-weight: 700;
}

.contact-info p {
    margin-bottom: 20px;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    font-size: 16px;
}

.contact-info ul {
    list-style: none;
    margin-top: 32px;
}

.contact-info ul li {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    color: #fff;
}

.contact-info ul li i {
    margin-right: 16px;
    color: var(--primary-color);
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 24px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 15px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.12);
    outline: none;
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.15);
}

.contact-form button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 40px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    letter-spacing: 1px;
}

.contact-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(52, 152, 219, 0.3);
}

/* 页脚优化 */
.footer {
    background: #0f172a;
    color: var(--text-light);
    padding: 60px 0 30px;
    text-align: center;
    position: relative;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
    gap: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    margin: 0 16px;
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
}

.footer-links a:hover {
    color: #fff;
    transform: translateY(-2px);
}

.social-links {
    margin-bottom: 32px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-radius: 50%;
    margin: 0 10px;
    transition: var(--transition);
    text-decoration: none;
    font-size: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
    border-color: transparent;
}

.copyright {
    opacity: 0.7;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* ==================== 完美手机端适配 ==================== */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        padding-top: 40px;
    }
    
    .hero-content {
        margin-bottom: 50px;
        max-width: 100%;
        margin-top: 74px;
    }
    
    .hero-content h1 {
        font-size: 44px;
    }
    
    .login-box {
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .zhixiao-content,
    .zhiscreen-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 小屏隐藏特色栏 */
    .hero .features {
        display: none;
    }

    .features-fab {
        display: inline-flex;
    }
}

@media (max-width: 768px) {
    /* 导航栏手机适配 */
    .header-container {
        flex-direction: column;
        padding: 0 16px;
    }
    
    .logo {
        margin-bottom: 12px;
        font-size: 24px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        margin-bottom: 12px;
    }
    
    .nav a {
        font-size: 15px;
        padding: 6px 0;
    }
    
    .btn-login {
        padding: 8px 20px;
        font-size: 14px;
    }
    
    /* 用户信息手机适配 */
    .user-info {
        margin-top: 8px;
    }
    
    .user-menu {
        right: 50%;
        transform: translateX(50%);
    }
    
    .user-menu::before {
        right: 50%;
        transform: translateX(50%) rotate(45deg);
    }
    
    /* 英雄区域手机适配 */
    .hero {
        padding: 120px 0 80px;
        min-height: auto;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .btn {
        padding: 12px 28px;
        font-size: 15px;
    }
    
    .btn-outline {
        margin-left: 12px;
    }

    .login-box .form-group label {
        display: none;
    }
    
    .code-row {
        flex-direction: row;
        align-items: center;
        flex-wrap: nowrap;
        gap: 6px;
    }

    .code-row input {
        min-width: 0;
        padding: 10px 12px;
        font-size: 13px;
    }

    .send-code-btn {
        flex: 0 0 auto;
        min-width: 78px;
        padding: 7px 8px;
        font-size: 11px;
    }
    
    /* 登录框手机适配 */
    .login-box {
        top: 50% !important;
        left: 50% !important;
        right: auto !important;
        transform: translate(-50%, -50%) !important;
        padding: 26px 20px;
        width: 90vw !important;
        max-width: 360px;
        margin: 0 !important;
    }
    
    /* 内容区域手机适配 */
    .section {
        padding: 60px 0;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
    
    .section-title p {
        font-size: 16px;
        padding: 0 20px;
    }
    
    .zhichan-cards {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .zhichan-card-img {
        height: 200px;
    }
    
    .zhichan-card-content {
        padding: 24px;
    }
    
    .zhichan-card-content h3 {
        font-size: 20px;
    }
    
    /* 智销智屏手机适配 */
    .zhixiao-text h3,
    .zhiscreen-text h3 {
        font-size: 26px;
        text-align: center;
    }
    
    .zhixiao-text ul li,
    .zhiscreen-text ul li {
        font-size: 15px;
    }
    
    /* 智管手机适配 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-box {
        padding: 30px 24px;
    }
    
    .feature-box i {
        font-size: 40px;
    }
    
    .feature-box h3 {
        font-size: 20px;
    }
    
    /* 用户管理面板手机适配 */
    #blank-container {
        flex-direction: column;
        width: 92%;
        max-height: 85vh;
        border-radius: 20px;
    }
    
    #blank-container .nav-bar {
        flex: 0 0 auto;
        flex-direction: row;
        flex-wrap: wrap;
        width: 100%;
        border-radius: 20px 20px 0 0;
        padding: 20px 16px;
        gap: 8px;
    }
    
    #blank-container .nav-bar h3 {
        width: 100%;
        margin-bottom: 12px;
    }
    
    #blank-container .nav-bar button {
        width: auto;
        flex: 1 1 calc(50% - 8px);
        margin-bottom: 0;
        padding: 12px 16px;
        justify-content: center;
    }
    
    #blank-container .form-container {
        padding: 24px 20px;
        border-radius: 0 0 20px 20px;
    }
    
    #blank-container .form-container h2 {
        font-size: 22px;
    }
    
    /* 工单表格手机适配 */
    #blank-container .form-container table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    #blank-container .form-container th,
    #blank-container .form-container td {
        padding: 12px;
        font-size: 14px;
    }
    
    /* 卡密区域手机适配 */
    #blank-container .service-code-container {
        flex-direction: column;
        padding: 16px;
    }
    
    #blank-container .service-code-input,
    #blank-container .service-code-btn {
        width: 100%;
    }
    
    /* 退出按钮手机适配 */
    #blank-container .logout-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    #blank-container .btn-confirm,
    #blank-container .btn-cancel {
        width: 100%;
    }
    
    /* 联系我们手机适配 */
    .contact-info h3 {
        font-size: 24px;
        text-align: center;
    }
    
    .contact-info ul li {
        justify-content: center;
    }
    
    /* 页脚手机适配 */
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
    
    .footer-links a {
        margin: 0;
    }
    
    .social-links a {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

/* 超小屏幕适配 */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 30px;
    }
    
    .hero-content p {
        font-size: 15px;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 12px 0;
    }
    
    .btn-outline {
        margin-left: 0;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .zhixiao-text h3,
    .zhiscreen-text h3 {
        font-size: 24px;
    }
    
    .login-box {
        padding: 24px 20px;
    }
    
    .login-box h2 {
        font-size: 22px;
    }
    
    #blank-container .nav-bar button {
        flex: 1 1 100%;
    }
}

/* 动画优化 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

.delay-4 {
    animation-delay: 0.8s;
}