/* ==========================================================================
   暖棕企业营销风 · 杂志式排版
   主色: #8B4513  强调: #D4A574
   字体: Noto Serif SC(标题) + Noto Sans SC(正文)
   ========================================================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.8;
    color: #3a2a1c;
    background: #fbf7f1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #8B4513; text-decoration: none; transition: color .25s ease; }
a:hover { color: #D4A574; }
ul, ol { margin: 0; padding: 0; }
h1, h2, h3, h4 {
    font-family: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
    font-weight: 700;
    color: #5c2e0d;
    line-height: 1.4;
    margin: 0 0 .6em;
}
p { margin: 0 0 1em; }

/* ---------- Layout Utilities ---------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 88px 0;
    position: relative;
}
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}
.section-eyebrow {
    display: inline-block;
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    letter-spacing: 4px;
    color: #D4A574;
    margin-bottom: 14px;
    font-weight: 600;
}
.section-title {
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 16px;
}
.section-desc {
    color: #7a6250;
    font-size: 16px;
    margin: 0;
}
.section-header-light .section-title { color: #fbf7f1; }
.section-header-light .section-desc { color: #e6d2ba; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 2px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .3s ease;
    font-family: inherit;
    letter-spacing: 1px;
}
.btn-primary {
    background: #8B4513;
    color: #fff;
    border-color: #8B4513;
}
.btn-primary:hover {
    background: #6e3610;
    border-color: #6e3610;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139,69,19,.25);
}
.btn-outline {
    background: transparent;
    color: #8B4513;
    border-color: #8B4513;
}
.btn-outline:hover {
    background: #8B4513;
    color: #fff;
}
.btn-lg {
    padding: 14px 40px;
    font-size: 16px;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(251,247,241,.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139,69,19,.1);
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo-mark {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 700;
    color: #8B4513;
    letter-spacing: 2px;
}
.main-nav { flex: 1; display: flex; justify-content: center; }
.nav-list {
    display: flex;
    list-style: none;
    gap: 28px;
    align-items: center;
}
.nav-list a {
    font-size: 15px;
    color: #3a2a1c;
    font-weight: 500;
    position: relative;
    padding: 6px 0;
}
.nav-list a::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 0; height: 2px;
    background: #D4A574;
    transition: width .3s ease;
}
.nav-list a:hover::after { width: 100%; }
.nav-list a:hover { color: #8B4513; }
.nav-cta {
    background: #8B4513;
    color: #fff !important;
    padding: 8px 20px !important;
    border-radius: 2px;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
    background: #D4A574 !important;
    color: #fff !important;
}
.header-phone a {
    font-family: 'Noto Serif SC', serif;
    font-weight: 600;
    font-size: 16px;
    color: #8B4513;
    letter-spacing: 1px;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #8B4513;
    transition: all .3s ease;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 100px 0 120px;
    background: linear-gradient(135deg, #fdf8f0 0%, #f3e5d1 100%);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -80px; right: -80px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(212,165,116,.25) 0%, transparent 70%);
    border-radius: 50%;
}
.hero-banner {
    position: absolute;
    inset: 0;
    opacity: .12;
    z-index: 0;
}
.hero-banner img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.hero-eyebrow {
    font-family: 'Noto Serif SC', serif;
    color: #D4A574;
    font-size: 14px;
    letter-spacing: 6px;
    margin-bottom: 20px;
    font-weight: 600;
}
.hero-title {
    font-size: clamp(32px, 5vw, 56px);
    color: #5c2e0d;
    margin-bottom: 24px;
    max-width: 800px;
}
.hero-subtitle {
    font-size: 17px;
    color: #5c4a38;
    max-width: 640px;
    margin-bottom: 36px;
    line-height: 1.9;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---------- Services (Magazine) ---------- */
.section-services { background: #fbf7f1; }
.services-magazine {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 24px;
}
.svc-card {
    background: #fff;
    border: 1px solid #ead9c3;
    padding: 36px 32px;
    position: relative;
    transition: transform .35s ease, box-shadow .35s ease;
}
.svc-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(139,69,19,.12);
}
.svc-featured {
    grid-column: span 2;
    background: linear-gradient(135deg, #8B4513 0%, #6e3610 100%);
    color: #fbf7f1;
}
.svc-featured h3, .svc-featured p, .svc-featured li { color: #fbf7f1; }
.svc-featured .svc-tag {
    background: #D4A574;
    color: #5c2e0d;
}
.svc-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    padding: 4px 12px;
    background: #f3e5d1;
    color: #8B4513;
    margin-bottom: 16px;
    font-weight: 500;
}
.svc-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}
.svc-card p {
    color: #6b5541;
    font-size: 15px;
    margin-bottom: 16px;
}
.svc-featured p { color: #f0e0c8; }
.svc-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
}
.svc-list li {
    font-size: 14px;
    padding-left: 18px;
    position: relative;
}
.svc-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 8px; height: 1px;
    background: #D4A574;
}

/* ---------- Platforms ---------- */
.section-platforms {
    background: #5c2e0d;
    color: #fbf7f1;
}
.platform-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}
.platform-item {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(212,165,116,.25);
    padding: 32px 24px;
    text-align: center;
    transition: all .35s ease;
}
.platform-item:hover {
    background: rgba(212,165,116,.12);
    border-color: #D4A574;
    transform: translateY(-4px);
}
.platform-item h3 {
    color: #D4A574;
    font-size: 22px;
    margin-bottom: 12px;
}
.platform-item p {
    color: #e6d2ba;
    font-size: 14px;
    line-height: 1.8;
    margin: 0;
}

/* ---------- Process ---------- */
.section-process { background: #fbf7f1; }
.process-steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    counter-reset: step;
    position: relative;
    margin-bottom: 56px;
}
.process-steps::before {
    content: '';
    position: absolute;
    top: 44px; left: 10%; right: 10%;
    height: 1px;
    background: #e0c9ad;
    z-index: 0;
}
.process-steps li {
    text-align: center;
    padding: 0 16px;
    position: relative;
    z-index: 1;
}
.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: #fbf7f1;
    border: 2px solid #D4A574;
    color: #8B4513;
    font-family: 'Noto Serif SC', serif;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    transition: all .3s ease;
}
.process-steps li:hover .step-num {
    background: #8B4513;
    color: #fff;
    border-color: #8B4513;
}
.process-steps h3 {
    font-size: 18px;
    margin-bottom: 8px;
}
.process-steps p {
    font-size: 14px;
    color: #7a6250;
    margin: 0;
    line-height: 1.7;
}
.grouplink-wrap {
    border-top: 1px solid #ead9c3;
    padding-top: 32px;
}
.grouplink-wrap a {
    color: #7a6250;
    font-size: 14px;
    margin-right: 18px;
}
.grouplink-wrap a:hover { color: #8B4513; }

/* ---------- FAQ ---------- */
.section-faq { background: #fdf8f0; }
.faq-list {
    max-width: 860px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid #ead9c3;
    padding: 0;
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 22px 0;
    font-family: 'Noto Serif SC', serif;
    font-size: 17px;
    font-weight: 600;
    color: #5c2e0d;
    position: relative;
    padding-right: 40px;
    transition: color .25s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 0; top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    color: #D4A574;
    font-weight: 300;
    transition: transform .3s ease;
}
.faq-item[open] summary::after {
    content: '−';
}
.faq-item summary:hover { color: #8B4513; }
.faq-body {
    padding: 0 0 22px;
    color: #6b5541;
    font-size: 15px;
    line-height: 1.9;
}

/* ---------- Article Cards (MANDATORY RULES) ---------- */
ul.article-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    box-sizing: border-box;
}
ul.article-cards > li.article-card {
    min-width: 0;
    width: auto;
    max-width: none;
    margin: 0;
    float: none;
    box-sizing: border-box;
    background: #fff;
    border: 1px solid #ead9c3;
    overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease;
}
ul.article-cards > li.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(139,69,19,.12);
}
.article-card .card-thumb {
    width: 100%;
    overflow: hidden;
}
.article-card .card-thumb img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform .5s ease;
}
.article-card:hover .card-thumb img {
    transform: scale(1.05);
}
.article-card .card-title {
    overflow-wrap: anywhere;
    font-family: 'Noto Serif SC', serif;
    font-size: 17px;
    font-weight: 600;
    color: #5c2e0d;
    padding: 18px 20px 8px;
    margin: 0;
    line-height: 1.5;
}
.article-card .card-title a { color: inherit; }
.article-card .card-title a:hover { color: #8B4513; }
.article-card .card-date {
    display: block;
    font-size: 13px;
    color: #D4A574;
    padding: 0 20px;
    letter-spacing: 1px;
}
.article-card .card-summary {
    overflow-wrap: anywhere;
    font-size: 14px;
    color: #7a6250;
    padding: 10px 20px 22px;
    margin: 0;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------- About ---------- */
.section-about { background: #fbf7f1; }
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
}
.about-text .section-eyebrow { margin-bottom: 12px; }
.about-text .section-title { text-align: left; margin-bottom: 20px; }
.about-text p {
    color: #5c4a38;
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 16px;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 36px;
    padding-top: 32px;
    border-top: 1px solid #ead9c3;
}
.stat-item { text-align: left; }
.stat-item strong {
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    color: #8B4513;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
}
.stat-item span {
    font-size: 14px;
    color: #7a6250;
    letter-spacing: 1px;
}
.about-visual {
    position: relative;
    height: 420px;
}
.about-block {
    position: absolute;
    border-radius: 2px;
}
.about-block-1 {
    width: 70%;
    height: 70%;
    top: 0; right: 0;
    background: linear-gradient(135deg, #D4A574 0%, #c8935d 100%);
}
.about-block-2 {
    width: 55%;
    height: 55%;
    bottom: 0; left: 0;
    background: #8B4513;
    border: 6px solid #fbf7f1;
}

/* ---------- Apply Form ---------- */
.section-apply {
    background: linear-gradient(135deg, #5c2e0d 0%, #3e1f09 100%);
    color: #fbf7f1;
}
.apply-form {
    max-width: 780px;
    margin: 0 auto;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(212,165,116,.25);
    padding: 48px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 14px;
    color: #D4A574;
    margin-bottom: 8px;
    letter-spacing: 1px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(212,165,116,.3);
    color: #fbf7f1;
    font-family: inherit;
    font-size: 15px;
    border-radius: 2px;
    transition: border-color .25s ease;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #c9b092; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #D4A574;
}
.form-group select option {
    background: #5c2e0d;
    color: #fbf7f1;
}
.form-group textarea { resize: vertical; }
.form-submit {
    text-align: center;
    margin-top: 28px;
}
.form-tip {
    font-size: 13px;
    color: #c9b092;
    margin-top: 14px;
    margin-bottom: 0;
}
.form-submit .btn-primary {
    background: #D4A574;
    border-color: #D4A574;
    color: #3e1f09;
}
.form-submit .btn-primary:hover {
    background: #e0b88a;
    border-color: #e0b88a;
}

/* ---------- Breadcrumb (article) ---------- */
.breadcrumb-wrap {
    background: #f3e5d1;
    padding: 16px 0;
    border-bottom: 1px solid #ead9c3;
}
.breadcrumb-wrap a { color: #8B4513; font-size: 14px; }
.breadcrumb-wrap span { color: #7a6250; font-size: 14px; margin: 0 8px; }

/* ---------- Article Detail ---------- */
.article-main { padding: 56px 0 80px; background: #fbf7f1; }
.article-container { max-width: 820px; }
.article-header { margin-bottom: 36px; text-align: center; }
.article-title {
    font-size: clamp(26px, 4vw, 38px);
    color: #5c2e0d;
    margin-bottom: 16px;
}
.article-lead {
    font-size: 16px;
    color: #7a6250;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
    border-left: 3px solid #D4A574;
    padding-left: 16px;
    text-align: left;
}
.article-meta {
    font-size: 13px;
    color: #a0886e;
    letter-spacing: 1px;
}
.meta-divider { margin: 0 10px; color: #D4A574; }
.article-cover {
    margin: 0 0 40px;
    overflow: hidden;
}
.article-cover img {
    width: 100%;
    height: auto;
}
.article-body {
    font-size: 17px;
    line-height: 2;
    color: #3a2a1c;
}
.article-body p { margin-bottom: 1.4em; }
.article-body h2,
.article-body h3 {
    margin-top: 1.6em;
    margin-bottom: .8em;
}
.article-body h2 { font-size: 24px; }
.article-body h3 { font-size: 20px; }
.article-body img { margin: 1.6em auto; border-radius: 2px; }
.article-body blockquote {
    border-left: 4px solid #D4A574;
    padding: 12px 20px;
    margin: 1.6em 0;
    background: #fdf8f0;
    color: #6b5541;
    font-style: italic;
}
.article-body ul, .article-body ol {
    padding-left: 1.5em;
    margin-bottom: 1.4em;
}
.article-body li { margin-bottom: .4em; }
.article-footer {
    margin-top: 56px;
    padding-top: 32px;
    border-top: 1px solid #ead9c3;
}
.article-share {
    text-align: center;
}
.article-share p {
    color: #7a6250;
    margin-bottom: 20px;
    font-size: 15px;
}
.article-share .btn { margin: 0 6px; }

.section-related { background: #fdf8f0; }

/* ---------- Footer ---------- */
.site-footer {
    background: #2e1706;
    color: #c9b092;
    padding: 64px 0 0;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(212,165,116,.2);
}
.footer-logo {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    color: #D4A574;
    margin-bottom: 16px;
}
.footer-slogan {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 14px;
}
.footer-contact a { color: #D4A574; }
.footer-col h4 {
    font-size: 16px;
    color: #fbf7f1;
    margin-bottom: 18px;
    font-family: 'Noto Serif SC', serif;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    color: #c9b092;
    font-size: 14px;
}
.footer-col ul a:hover { color: #D4A574; }
.footer-col p {
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.8;
}
.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
}
.footer-bottom p { margin: 4px 0; }
.footer-beian a { color: #a0886e; }
.footer-beian a:hover { color: #D4A574; }
.footer-beian .divider { margin: 0 10px; color: #5c4a38; }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .services-magazine { grid-template-columns: repeat(2, 1fr); }
    .svc-featured { grid-column: span 2; }
    .platform-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .process-steps::before { display: none; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { height: 320px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 720px) {
    .section { padding: 64px 0; }
    .nav-toggle { display: flex; }
    .main-nav { position: static; }
    .nav-list {
        position: absolute;
        top: 72px; left: 0; right: 0;
        background: #fbf7f1;
        flex-direction: column;
        gap: 0;
        padding: 12px 0;
        border-bottom: 1px solid #ead9c3;
        display: none;
    }
    .nav-list.open { display: flex; }
    .nav-list li { width: 100%; text-align: center; }
    .nav-list a { display: block; padding: 14px 24px; }
    .header-phone { display: none; }
    .hero { padding: 64px 0 80px; }
    .services-magazine { grid-template-columns: 1fr; }
    .svc-featured { grid-column: span 1; }
    .platform-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .apply-form { padding: 28px 20px; }
    .about-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .stat-item strong { font-size: 28px; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
    .reveal { opacity: 1; transform: none; }
}
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 40px; } .related-card { padding: 24px; background: #fff; border: 1px solid #e8e0d5; border-radius: 8px; color: #3a2f23; transition: all 0.3s; } .related-card:hover { border-color: #8B4513; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(139,69,19,0.1); color: #3a2f23; } .related-card h3 { font-size: 18px; color: #8B4513; margin-bottom: 10px; } .related-card p { font-size: 14px; color: #6b5c4a; line-height: 1.7; } @media (max-width:768px) { .related-grid { grid-template-columns: 1fr; } }