/* 快联官网 — 靛青 + 青绿主题 */
:root {
    --primary-color: #4F46E5;
    --primary-dark: #3730A3;
    --secondary-color: #0D9488;
    --accent-color: #F59E0B;
    --text-color: #1E293B;
    --text-muted: #64748B;
    --light-bg: #F8FAFC;
    --surface: #FFFFFF;
    --border-color: #E2E8F0;
    --dark-bg: #0F172A;
    --transition-speed: 0.25s;
    --transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --section-pad: 4rem;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    color: var(--text-color);
    line-height: 1.65;
    background: var(--light-bg);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* 导航 */
.ze1505navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0.65rem 0;
    box-shadow: none;
}

.ze1505navbar-brand img {
    height: 42px;
    width: auto;
}

.ze1505nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.45rem 0.85rem !important;
    font-size: 0.95rem;
    transition: color var(--transition-speed);
    border-radius: var(--radius-sm);
}

.ze1505nav-link:hover,
.ze1505nav-link:focus {
    color: var(--primary-color) !important;
}

/* 主视觉 */
.ze1505hero-section {
    background: linear-gradient(145deg, var(--primary-dark) 0%, var(--primary-color) 45%, var(--secondary-color) 100%);
    color: #fff;
    padding: 4.5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.ze1505hero-section::after {
    content: '';
    position: absolute;
    right: -10%;
    top: -20%;
    width: 50%;
    height: 140%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.ze1505hero-content {
    position: relative;
    z-index: 1;
}

.ze1505hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.ze1505hero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.25;
}

.ze1505hero-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    margin-bottom: 1.5rem;
    opacity: 0.92;
    max-width: 36em;
}

.ze1505hero-note {
    opacity: 0.8;
}

.ze1505hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.ze1505hero-buttons .btn {
    padding: 0.7rem 1.35rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    white-space: normal;
}

.btn-accent {
    background: var(--accent-color);
    color: var(--dark-bg);
    border: none;
}

.btn-accent:hover {
    background: #D97706;
    color: var(--dark-bg);
    transform: translateY(-1px);
}

.ze1505hero-buttons .btn-outline-light:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.ze1505hero-panel {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    position: relative;
    z-index: 1;
}

.ze1505hero-panel-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.12);
}

.ze1505hero-panel-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.ze1505hero-panel-item:first-child {
    padding-top: 0;
}

.ze1505hero-panel-item i {
    font-size: 1.25rem;
    width: 2.25rem;
    text-align: center;
    color: var(--accent-color);
    flex-shrink: 0;
}

.ze1505hero-panel-item strong {
    display: block;
    font-size: 0.95rem;
}

.ze1505hero-panel-item span {
    font-size: 0.82rem;
    opacity: 0.85;
}

/* 简介条 */
.ze1505intro-strip {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}

.ze1505intro-strip p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 52em;
}

.ze1505intro-strip strong {
    color: var(--primary-color);
}

/* 通用区块 */
.ze1505section {
    padding: var(--section-pad) 0;
}

.ze1505section-head {
    margin-bottom: 2.5rem;
}

.ze1505section-head h2,
.ze1505section-title {
    font-size: clamp(1.4rem, 3vw, 1.85rem);
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.ze1505section-title-inline {
    font-size: 1.5rem;
    font-weight: 700;
}

.ze1505section-head p {
    color: var(--text-muted);
    margin: 0 auto;
    max-width: 32em;
    font-size: 0.95rem;
}

/* Bento 能力卡片 */
.ze1505features-section {
    background: var(--light-bg);
}

.ze1505bento-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.35rem 1.5rem;
    height: 100%;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    overflow: hidden;
}

.ze1505bento-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.08);
}

.ze1505bento-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    display: block;
}

.ze1505bento-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.ze1505bento-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

.ze1505bento-large {
    border-left: 3px solid var(--primary-color);
}

/* 统计数据 */
.ze1505stats-section {
    background: var(--dark-bg);
    color: #fff;
    padding: 3rem 0;
}

.ze1505stat-item {
    text-align: center;
    padding: 1rem 0.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    height: 100%;
}

.ze1505stat-number {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.ze1505stat-label {
    font-size: 0.9rem;
    opacity: 0.88;
}

/* 知识区 */
.ze1505knowledge-section {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.ze1505knowledge-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ze1505knowledge-list li {
    padding: 0.85rem 1rem;
    margin-bottom: 0.5rem;
    background: var(--light-bg);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--secondary-color);
    font-size: 0.9rem;
    line-height: 1.6;
}

.ze1505knowledge-list li:last-child {
    margin-bottom: 0;
}

/* 下载区 */
.ze1505download-section {
    padding: var(--section-pad) 0;
    background: linear-gradient(180deg, #EEF2FF 0%, var(--light-bg) 100%);
}

.ze1505download-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.ze1505download-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
    transition: box-shadow var(--transition-speed);
    overflow: hidden;
}

.ze1505download-card:hover {
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.1);
}

.ze1505download-card .card-body {
    padding: 1.25rem !important;
}

.ze1505dl-head {
    min-width: 0;
}

.ze1505dl-head h3 {
    word-break: break-word;
}

.ze1505platform-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.ze1505ios-icon {
    background: linear-gradient(135deg, #3B82F6, #1D4ED8);
    color: #fff;
}

.ze1505android-icon {
    background: linear-gradient(135deg, #10B981, #059669);
    color: #fff;
}

.ze1505download-info {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.ze1505info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
}

.ze1505info-item:last-child {
    margin-bottom: 0;
}

.ze1505info-item i {
    color: var(--secondary-color);
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.ze1505download-action .btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    padding: 0.65rem 1rem;
}

.ze1505btn.btn-primary,
.btn-primary.ze1505btn {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.ze1505btn.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* 安全区 */
.ze1505security-section {
    padding: var(--section-pad) 0;
    background: var(--surface);
}

.ze1505security-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.ze1505security-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: border-color var(--transition-speed);
    overflow: hidden;
}

.ze1505security-card:hover {
    border-color: var(--secondary-color);
}

.ze1505security-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 0.85rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
}

.ze1505security-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.ze1505security-features {
    background: var(--surface);
    padding: 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.ze1505security-card .ze1505feature-item {
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.ze1505security-card .ze1505feature-item:last-child {
    margin-bottom: 0;
}

.ze1505feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
}

.ze1505feature-item i {
    color: var(--secondary-color);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.ze1505certificate-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    transition: border-color var(--transition-speed);
}

.ze1505certificate-card:hover {
    border-color: var(--primary-color);
}

.ze1505certificate-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin: 0 auto 0.85rem;
    background: var(--primary-color);
    color: #fff;
}

.ze1505certificate-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.ze1505certificate-card p {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* FAQ */
.ze1505faq-section {
    background: var(--light-bg);
}

.ze1505faq-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: none;
    overflow: hidden;
}

.ze1505faq-card .card-body {
    padding: 1.15rem 1.25rem;
}

.ze1505faq-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.ze1505faq-card .card-text {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 文章区 */
.ze1505article-section {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
}

.ze1505article-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: none;
}

.ze1505thumb-home {
    height: 120px;
    width: 100%;
    object-fit: cover;
}

/* 页脚 */
.ze1505footer {
    background: var(--dark-bg);
    color: #94A3B8;
    padding: 3rem 0 1.5rem;
}

.ze1505footer-title {
    color: #F1F5F9;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.ze1505footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ze1505footer-links li {
    margin-bottom: 0.5rem;
}

.ze1505footer-link {
    color: #94A3B8;
    text-decoration: none;
    font-size: 0.88rem;
    transition: color var(--transition-speed);
}

.ze1505footer-link:hover {
    color: var(--accent-color);
}

.ze1505friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.ze1505friend-links a {
    color: #94A3B8;
    font-size: 0.85rem;
    text-decoration: none;
}

.ze1505friend-links a:hover {
    color: #fff;
}

.ze1505footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.25rem;
    font-size: 0.85rem;
}

.ze1505footer-bottom a {
    color: #CBD5E1;
    text-decoration: none;
}

.ze1505footer-bottom a:hover {
    color: var(--accent-color);
}

/* 列表/内页 */
.ze1505pages .pagelist,
.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.ze1505article-content {
    line-height: 1.75;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.ze1505article-content img {
    max-width: 100%;
    height: auto;
}

.ze1505meta-tags .ze1505tagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--primary-color);
}

/* 内页卡片边框统一 */
.card.shadow-sm {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.card.shadow-sm .card-body {
    padding: 1.25rem;
}

/* 按钮全局 */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.btn:active {
    transform: scale(0.98);
}

/* 导航折叠 */
.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.55rem;
}

.navbar-collapse {
    background: var(--surface);
}

@media (max-width: 991px) {
    .navbar-collapse {
        margin-top: 0.5rem;
        padding: 0.75rem;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        max-height: 70vh;
        overflow-y: auto;
    }

    .ze1505footer .row > [class*="col-"] {
        text-align: center;
    }

    .ze1505footer-links {
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 767px) {
    :root {
        --section-pad: 2.75rem;
    }

    .ze1505navbar {
        padding: 0.5rem 0;
    }

    .ze1505navbar-brand img {
        height: 36px;
    }

    .ze1505hero-section {
        padding: 3rem 0 2.5rem;
    }

    .ze1505hero-buttons {
        flex-direction: column;
    }

    .ze1505hero-buttons .btn {
        width: 100%;
        margin: 0 !important;
    }

    .ze1505hero-panel {
        margin-top: 0.5rem;
    }

    .ze1505intro-strip {
        padding: 1.15rem 0;
    }

    .ze1505intro-strip p {
        font-size: 0.88rem;
    }

    .ze1505section-head {
        margin-bottom: 1.75rem;
    }

    .ze1505bento-card {
        padding: 1.1rem;
    }

    .ze1505stat-item {
        padding: 0.75rem 0.35rem;
    }

    .ze1505download-section .row.g-3 {
        --bs-gutter-y: 0.75rem;
    }

    .ze1505download-card .d-flex.ze1505dl-head {
        flex-wrap: nowrap;
    }

    .ze1505download-card .ms-3 {
        min-width: 0;
    }

    .ze1505security-card,
    .ze1505certificate-card {
        padding: 1rem;
    }

    .ze1505security-certificates {
        margin-top: 1rem !important;
    }

    .ze1505thumb-home {
        height: 96px !important;
    }

    #article .card-body,
    .ze1505article-card .card-body {
        padding: 0.75rem !important;
    }

    #article h3.h6,
    #article .h6 {
        font-size: 0.9rem;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .listbox .e2 li {
        padding-bottom: 0.75rem !important;
        margin-bottom: 0.75rem !important;
    }

    .listbox .e2 li h2.h5 {
        font-size: 1rem;
        line-height: 1.35;
    }

    .ze1505thumb-list,
    .ze1505thumb-related {
        height: 72px !important;
    }

    .ze1505thumb-side {
        height: 50px !important;
    }

    .ze1505thumb-cover {
        max-width: 100% !important;
        width: 100%;
        height: 170px !important;
        object-fit: cover;
        border-radius: var(--radius-sm);
    }

    .btn {
        white-space: normal;
    }
}

@media (max-width: 575px) {
    .container {
        padding-left: 14px;
        padding-right: 14px;
    }

    .ze1505thumb-home {
        height: 88px !important;
    }

    .ze1505thumb-list,
    .ze1505thumb-related {
        height: 64px !important;
    }

    .ze1505thumb-cover {
        height: 150px !important;
    }

    .pagebar .pagelist {
        gap: 0.35rem;
    }
}

/* 兼容旧类名，避免残留样式冲突 */
.ze1505feature-card,
.ze1505hero-image-container,
.ze1505hero-image,
.app-preview-container {
    display: none;
}