:root{
    --color-primary:#00a3ff;
    --color-primary-dark:#0057b8;
    --color-primary-darker:#0b2a4a;
    --color-accent:#ff3b7a;
    --color-accent-dark:#d1004f;
    --color-success:#22c55e;
    --color-danger:#ff3b30;

    --color-text:#102a43;
    --color-text-muted:#3a556a;
    --color-text-light:#6b7d8f;
    --color-bg:#f3f6fb;
    --color-bg-soft:#eef3fa;
    --color-bg-muted:#e8eff8;
    --color-border:#d7e1ee;
    --color-border-soft:#e3ebf6;

    --gradient-hero:linear-gradient(135deg,#0b2a4a 0%,#0057b8 45%,#00a3ff 100%);
    --gradient-deep:linear-gradient(135deg,#061a2f 0%,#0b2a4a 55%,#0057b8 100%);
    --gradient-dept:linear-gradient(135deg,#0d1b3a 0%,#1b2a6b 50%,#00a3ff 100%);
    --gradient-security:linear-gradient(135deg,#05203c 0%,#0b2a4a 55%,#061a2f 100%);
    --gradient-mission:linear-gradient(135deg,#0057b8 0%,#0d1b3a 55%,#1b2a6b 100%);
    --gradient-trust:linear-gradient(135deg,#0a2340 0%,#0057b8 55%,#0b2a4a 100%);
    --gradient-cta:linear-gradient(135deg,#ff3b7a 0%,#0057b8 55%,#00a3ff 100%);
    --gradient-accent:linear-gradient(135deg,#ff3b7a 0%,#ffb000 100%);
    --gradient-icon:linear-gradient(135deg,#00a3ff 0%,#ff3b7a 100%);

    --glass-bg:rgba(255,255,255,.1);
    --glass-border:rgba(0,163,255,.22);
    --glass-blur:blur(12px);

    --shadow-sm:4px 4px 0 rgba(16,42,67,.12), 10px 14px 24px rgba(2,18,35,.10);
    --shadow-md:4px 4px 0 rgba(16,42,67,.18), 14px 18px 34px rgba(2,18,35,.14);
    --shadow-lg:4px 4px 0 rgba(16,42,67,.22), 18px 22px 44px rgba(2,18,35,.18);
    --shadow-xl:4px 4px 0 rgba(16,42,67,.26), 22px 28px 54px rgba(2,18,35,.22);
    --shadow-primary:4px 4px 0 rgba(0,87,184,.25), 16px 20px 38px rgba(0,87,184,.18);
    --shadow-accent:4px 4px 0 rgba(255,59,122,.26), 16px 20px 38px rgba(255,59,122,.18);

    --radius-sm:2px;
    --radius-md:3px;
    --radius-lg:4px;
    --radius-pill:999px;

    --space-xs:0.5rem;
    --space-sm:1rem;
    --space-md:1.5rem;
    --space-lg:2rem;
    --space-xl:3rem;
    --space-2xl:5rem;

    --transition-fast:.15s cubic-bezier(.2,.85,.2,1);
    --transition-base:.15s cubic-bezier(.2,.85,.2,1);
    --transition-slow:.35s cubic-bezier(.2,.85,.2,1);
}

:where(body){
    color:var(--color-text);
    background:var(--color-bg);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
}

:where(img){
    max-width:100%;
    height:auto;
}

.bg-glass{
    background:rgba(255,255,255,.08);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border:2px solid rgba(0,163,255,.28);
    box-shadow:4px 4px 0 rgba(16,42,67,.10), 10px 14px 26px rgba(2,18,35,.10);
}

.icon-circle{
    width:60px;
    height:60px;
    background:var(--gradient-icon);
    border-radius:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-size:1.5rem;
    flex-shrink:0;
    border:2px solid rgba(255,255,255,.35);
}

.header{
    background:#fbfdff;
    z-index:1030;
    box-shadow:0 8px 26px rgba(2,18,35,.08);
}

.header .navbar-brand img{
    transition:transform var(--transition-fast), filter var(--transition-fast);
    border-radius:2px;
}

.header .navbar-brand:hover img{
    transform:scale(1.06);
    filter:saturate(1.05) contrast(1.02);
}

.header .nav-link{
    font-weight:500;
    color:var(--color-text);
    transition:color var(--transition-fast), transform var(--transition-fast);
}

.header .nav-link:hover{
    color:var(--color-primary);
    transform:translateY(-1px);
}

.hero-section{
    min-height:480px;
    background:var(--gradient-hero);
    color:#fff;
    padding-block:var(--space-2xl);
    position:relative;
    overflow:hidden;
}

.hero-section::before{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(0,0,0,.25) 0%, rgba(0,0,0,.05) 100%);
    z-index:0;
    pointer-events:none;
}

.hero-section > .container{
    position:relative;
    z-index:1;
}

.hero-section h1{
    font-size:clamp(2rem, 4vw, 2.8rem);
    font-weight:700;
    margin-bottom:var(--space-sm);
    line-height:1.2;
    text-shadow:3px 3px 0 rgba(2,18,35,.30);
}

.hero-section h2{
    font-size:clamp(1.1rem, 2vw, 1.4rem);
    opacity:.95;
    margin-bottom:var(--space-md);
    font-weight:500;
    text-shadow:2px 2px 0 rgba(2,18,35,.22);
}

.hero-section .lead{
    font-size:1.1rem;
    max-width:700px;
    margin-inline:auto;
    opacity:.95;
    text-shadow:2px 2px 0 rgba(2,18,35,.18);
}

.hero-buttons{
    display:flex;
    gap:var(--space-sm);
    justify-content:center;
    flex-wrap:wrap;
    margin-block-start:var(--space-md);
}

.notice-bar{
    animation:noticeSlideIn .42s cubic-bezier(.2,.85,.2,1);
}

.notice-bar a{
    transition:opacity var(--transition-fast), transform var(--transition-fast);
}

.notice-bar a:hover{
    opacity:.88;
    transform:translateY(-1px);
}

@keyframes noticeSlideIn{
    from{transform:translateY(-100%); opacity:0;}
    to{transform:translateY(0); opacity:1;}
}

.breadcrumb-nav{
    background:linear-gradient(180deg, var(--color-bg-muted) 0%, var(--color-bg-soft) 100%);
    border-top:2px solid var(--color-border-soft);
    border-bottom:2px solid var(--color-border-soft);
}

.breadcrumb-nav .breadcrumb-item a{
    transition:color var(--transition-fast), text-shadow var(--transition-fast);
}

.breadcrumb-nav .breadcrumb-item a:hover{
    color:var(--color-primary-dark) !important;
    text-shadow:2px 2px 0 rgba(0,87,184,.18);
}

.why-us-section{
    background:linear-gradient(180deg, var(--color-bg-soft) 0%, #ffffff 100%);
}

.whyus-card{
    background:#ffffff;
    border:3px solid var(--color-border-soft);
    border-radius:var(--radius-lg);
    padding:var(--space-md);
    transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
    height:100%;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
}

.whyus-card:hover{
    transform:translateY(-4px);
    box-shadow:4px 4px 0 rgba(0,87,184,.22), 16px 20px 38px rgba(0,87,184,.14);
    border-color:rgba(0,163,255,.45);
}

.about-section{
    background:var(--gradient-deep);
    color:#fff;
}

.about-img-wrap{
    overflow:hidden;
    border-radius:2px;
    border:3px solid rgba(255,255,255,.18);
    box-shadow:4px 4px 0 rgba(2,18,35,.20);
}

.about-img-wrap img{
    transition:transform var(--transition-slow), filter var(--transition-slow);
    filter:saturate(1.05) contrast(1.02);
}

.about-img-wrap:hover img{
    transform:scale(1.06);
    filter:saturate(1.12) contrast(1.05);
}

.about-card{
    transition:transform var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.about-card:hover{
    transform:translateY(-4px);
    background:rgba(255,255,255,.12);
    box-shadow:4px 4px 0 rgba(2,18,35,.20), 18px 22px 44px rgba(2,18,35,.18);
}

.text-white-75{
    color:rgba(255,255,255,.85) !important;
}

.departments-section{
    background:var(--gradient-dept);
    color:#fff;
}

.departments-title{
    font-size:clamp(1.6rem, 3vw, 2.2rem);
    font-weight:700;
    margin-bottom:var(--space-sm);
    text-shadow:3px 3px 0 rgba(2,18,35,.28);
}

.departments-subtitle{
    font-size:1.05rem;
    max-width:800px;
    margin-inline:auto;
    color:rgba(255,255,255,.86);
    text-shadow:2px 2px 0 rgba(2,18,35,.18);
}

.departments-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:var(--space-lg);
    margin-block-start:var(--space-lg);
}

@media (min-width: 768px){
    .departments-grid{
        grid-template-columns:1fr 1fr;
    }
}

.d-item{
    background:linear-gradient(180deg, rgba(255,255,255,.10) 0%, rgba(255,255,255,.06) 100%);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    padding:var(--space-md);
    border-radius:2px;
    margin-bottom:var(--space-sm);
    border:3px solid rgba(0,163,255,.22);
    box-shadow:4px 4px 0 rgba(2,18,35,.16), 14px 18px 34px rgba(2,18,35,.12);
}

.d-num{
    font-size:1.5rem;
    font-weight:700;
    color:var(--color-accent);
    margin-bottom:var(--space-xs);
    text-shadow:2px 2px 0 rgba(209,0,79,.18);
}

.d-num span{
    color:#fff;
    font-size:1.1rem;
    margin-inline-start:var(--space-xs);
}

.d-image{
    margin-bottom:var(--space-sm);
}

.d-image img{
    width:100%;
    border-radius:2px;
    border:2px solid rgba(255,255,255,.20);
    box-shadow:4px 4px 0 rgba(2,18,35,.18);
}

.security-section{
    background:var(--gradient-security);
    color:#fff;
}

.security-network{
    position:relative;
    max-width:800px;
    margin:var(--space-xl) auto;
    min-height:400px;
    display:grid;
    grid-template-columns:1fr;
    gap:var(--space-md);
}

@media (min-width: 768px){
    .security-network{
        grid-template-columns:repeat(3, 1fr);
        grid-template-rows:repeat(3, auto);
    }

    .core-node{grid-column:2; grid-row:2;}
    .node-top-left{grid-column:1; grid-row:1;}
    .node-top-right{grid-column:3; grid-row:1;}
    .node-bottom-left{grid-column:1; grid-row:3;}
    .node-bottom-right{grid-column:3; grid-row:3;}
}

.core-node{
    background:var(--gradient-accent);
    border-radius:0;
    width:140px;
    height:140px;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    margin-inline:auto;
    color:var(--color-primary-darker);
    font-weight:700;
    box-shadow:4px 4px 0 rgba(209,0,79,.28), 18px 22px 40px rgba(255,59,122,.18);
    border:3px solid rgba(255,255,255,.35);
}

.node{
    background:rgba(255,255,255,.08);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border-radius:2px;
    padding:var(--space-sm);
    text-align:center;
    color:#fff;
    transition:transform var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    border:3px solid rgba(0,163,255,.20);
    box-shadow:4px 4px 0 rgba(2,18,35,.14), 14px 18px 34px rgba(2,18,35,.10);
}

.node:hover{
    transform:translateY(-3px);
    background:rgba(255,255,255,.12);
    border-color:rgba(255,59,122,.42);
    box-shadow:4px 4px 0 rgba(255,59,122,.20), 18px 22px 44px rgba(255,59,122,.14);
}

.node-title{
    font-weight:600;
    color:var(--color-accent);
    margin-block:var(--space-xs);
    text-shadow:2px 2px 0 rgba(209,0,79,.18);
}

@media (max-width: 767.98px){
    .core-node{width:120px; height:120px;}
}

.honor-section{
    background:linear-gradient(180deg, var(--color-bg-soft) 0%, #ffffff 100%);
}

.honor-row{
    padding-block:var(--space-sm);
}

.honor-text-card{
    padding:var(--space-md);
    background:#ffffff;
    border-radius:2px;
    border-inline-start:3px solid var(--color-primary);
    border:2px solid var(--color-border-soft);
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 14px 18px 34px rgba(2,18,35,.08);
    transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

.honor-text-card:hover{
    transform:translateY(-4px);
    box-shadow:4px 4px 0 rgba(0,87,184,.22), 18px 22px 44px rgba(0,87,184,.14);
    border-color:rgba(0,163,255,.42);
    background:linear-gradient(180deg, #ffffff 0%, rgba(0,163,255,.04) 100%);
}

.mission-section{
    background:var(--gradient-mission);
    padding-block:var(--space-2xl);
    color:#fff;
}

.mission-list li{
    margin-bottom:var(--space-sm);
    color:rgba(226,232,240,.92);
    text-shadow:2px 2px 0 rgba(2,18,35,.16);
}

.stats-section{
    background:#ffffff;
}

.stats-card{
    transition:transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
    background:linear-gradient(180deg, var(--color-bg-soft) 0%, #ffffff 100%);
    border:3px solid var(--color-border-soft);
    border-radius:2px;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
}

.stats-card:hover{
    transform:translateY(-5px);
    box-shadow:4px 4px 0 rgba(0,87,184,.22), 18px 22px 44px rgba(0,87,184,.16);
    background:linear-gradient(135deg, #ffffff 0%, #e9f6ff 55%, #ffffff 100%);
    border-color:rgba(0,163,255,.45);
}

.stats-card h3{
    font-variant-numeric:tabular-nums;
    color:var(--color-primary-darker);
    text-shadow:2px 2px 0 rgba(0,87,184,.10);
}

.news-section{
    background:var(--color-bg-soft);
}

.news-card{
    transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
    border:3px solid var(--color-border-soft);
    border-radius:2px;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
    background:#fff;
}

.news-card:hover{
    transform:translateY(-5px);
    box-shadow:4px 4px 0 rgba(255,59,122,.22), 18px 22px 44px rgba(255,59,122,.14);
    border-color:rgba(255,59,122,.45);
}

.news-img-wrap{
    height:200px;
    overflow:hidden;
    position:relative;
    border-bottom:3px solid rgba(0,163,255,.20);
}

.news-img-wrap img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform var(--transition-slow), filter var(--transition-slow);
    filter:saturate(1.05) contrast(1.02);
}

.news-card:hover .news-img-wrap img{
    transform:scale(1.10);
    filter:saturate(1.12) contrast(1.05);
}

.match-card{
    transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
    border:3px solid var(--color-border-soft);
    border-radius:2px;
    background:#fff;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
}

.match-card:hover{
    transform:translateY(-4px);
    box-shadow:4px 4px 0 rgba(0,87,184,.22), 18px 22px 44px rgba(0,87,184,.14);
    border-color:rgba(0,163,255,.55);
    background:linear-gradient(180deg, #ffffff 0%, rgba(0,163,255,.04) 100%);
}

.match-card .team{
    min-width:0;
}

.match-card .team .small{
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}

.match-card .score{
    font-variant-numeric:tabular-nums;
    color:var(--color-primary-darker);
    text-shadow:2px 2px 0 rgba(0,87,184,.12);
}

.trust-section{
    background:var(--gradient-trust);
    color:#fff;
}

.trust-card{
    background:rgba(255,255,255,.08);
    backdrop-filter:var(--glass-blur);
    -webkit-backdrop-filter:var(--glass-blur);
    border-radius:2px;
    padding:var(--space-lg) var(--space-sm);
    height:100%;
    transition:transform var(--transition-base), background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    border:3px solid rgba(0,163,255,.22);
    box-shadow:4px 4px 0 rgba(2,18,35,.18), 18px 22px 44px rgba(2,18,35,.14);
}

.trust-card:hover{
    transform:translateY(-4px);
    background:rgba(255,255,255,.12);
    border-color:rgba(255,59,122,.45);
    box-shadow:4px 4px 0 rgba(255,59,122,.20), 22px 28px 54px rgba(255,59,122,.14);
}

.partners-section{
    background:linear-gradient(180deg, var(--color-bg-soft) 0%, #ffffff 100%);
}

.partner-card{
    transition:transform var(--transition-base), box-shadow var(--transition-base);
    border:3px solid var(--color-border-soft);
    border-radius:2px;
    background:#fff;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
}

.partner-card:hover{
    transform:translateY(-5px);
    box-shadow:4px 4px 0 rgba(0,87,184,.22), 18px 22px 44px rgba(0,87,184,.14);
}

.testimonials-section{
    background:#ffffff;
}

.testimonial-card{
    transition:transform var(--transition-base), box-shadow var(--transition-base), border-block-start-color var(--transition-base);
    border-block-start:3px solid transparent;
    border:3px solid var(--color-border-soft);
    border-radius:2px;
    background:#fff;
    box-shadow:4px 4px 0 rgba(16,42,67,.08), 12px 16px 30px rgba(2,18,35,.08);
}

.testimonial-card:hover{
    border-block-start-color:var(--color-accent);
    transform:translateY(-5px);
    box-shadow:4px 4px 0 rgba(255,59,122,.22), 18px 22px 44px rgba(255,59,122,.14);
}

.cta-banner-section{
    background:var(--gradient-cta);
    color:#fff;
    position:relative;
    overflow:hidden;
    border-top:2px solid rgba(255,255,255,.18);
    border-bottom:2px solid rgba(255,255,255,.18);
}

.cta-banner-section::before{
    content:'';
    position:absolute;
    inset:0;
    background:radial-gradient(900px circle at 20% 20%, rgba(255,255,255,.18) 0%, rgba(0,0,0,.12) 45%, rgba(0,0,0,.28) 100%);
    z-index:0;
}

.cta-banner-section > .container{
    position:relative;
    z-index:1;
}

.cta-banner-section .btn-warning{
    box-shadow:4px 4px 0 rgba(255,176,0,.26), 18px 22px 44px rgba(255,176,0,.18);
    border-radius:0;
    border:2px solid rgba(255,255,255,.28);
    transition:transform var(--transition-base), box-shadow var(--transition-base), filter var(--transition-base);
}

.text-white-75{
    color:rgba(255,255,255,.88) !important;
    text-shadow:2px 2px 0 rgba(2,18,35,.18);
}

.footer{
    font-size:0.9rem;
    color:#9db2c9;
    text-shadow:1px 1px 0 rgba(2,18,35,.10);
}

.footer a {
    transition: color 0.15s cubic-bezier(0.2, 0.9, 0.2, 1);
}

.footer a:hover {
    color: var(--color-accent) !important;
}

.footer-copyright {
    font-size: 0.85rem;
}

/* Beian */
.footer-beian {
    font-size: 0.8rem;
    line-height: 1.8;
    opacity: 0.88;
}

.footer-beian a:hover {
    color: var(--color-accent) !important;
    text-decoration: underline !important;
}

.footer-beian img {
    margin-inline-end: 4px;
    transition: transform 0.15s cubic-bezier(0.2, 0.9, 0.2, 1), filter 0.15s cubic-bezier(0.2, 0.9, 0.2, 1);
    border-radius: 2px;
    filter: drop-shadow(2px 2px 0 rgba(15, 23, 42, 0.14));
}

.footer-beian a:hover img {
    transform: scale(1.2);
    filter: drop-shadow(3px 3px 0 rgba(15, 23, 42, 0.18));
}

.footer-beian li {
    white-space: nowrap;
}

@media (max-width: 575.98px) {
    .footer-beian ul {
        flex-direction: column;
        gap: var(--space-xs) !important;
    }

    .footer-beian li {
        white-space: normal;
        text-align: center;
    }
}

/* ============================================
   22. Form (Login/Signup/Contact)
   ============================================ */
.form-control:focus,
.form-select:focus {
    border-color: #1f6feb;
    box-shadow:
        4px 4px 0 rgba(15, 23, 42, 0.14),
        0 0 0 3px rgba(31, 111, 235, 0.14);
}

.btn-primary {
    background-color: #2563eb;
    border-color: #1d4ed8;
    color: #ffffff;
    border-style: solid;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
    color: #ffffff;
}

.input-group-text {
    background-color: #f3f4f6;
    border-color: #e5e7eb;
    color: #0f172a;
    border-style: solid;
    border-radius: 3px;
}

/* ============================================
   23. Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================
   Grid Layout Defaults (CSS-Variant-Ready)
   CSSVariantEngine sẽ override các rules này
   ============================================================ */

/* 新闻网格 (默认 3 列) */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* 功能特性列表 (默认 3 列) */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* 用户评价 (默认 3 列) */
.testimonial-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* 合作伙伴 (默认 4 列) */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    align-items: center;
}

/* 数据统计 (默认 4 列) */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    text-align: center;
}

/* FAQ 列表 (默认单列居中) */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

/* Hero 内容 (默认居中) */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Hero 分割布局 (左文右图) */
.hero-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}
.hero-split-text { }
.hero-split-img { text-align: center; }

/* CTA 内容 (默认居中) */
.cta-inner {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* 作者团队 (默认 4 列) */
.authors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* 联系渠道 (默认 3 列) */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* 文章列表 (默认 2 列) */
.post-list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* 相关文章 (默认 3 列) */
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

/* 赛事列表 (默认 3 列) */
.matches-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

/* 步 骤网格 (默认 4 列) */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* 二维码网格 (默认 3 列) */
.qr-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    justify-items: center;
}

/* 荣誉列表 (默认 2 列交替) */
.honor-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}
.honor-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}
.honor-row-reverse {
    direction: rtl;
}
.honor-row-reverse > * {
    direction: ltr;
}

/* ============================================================
   Responsive Defaults
   ============================================================ */
@media (max-width: 1024px) {
    .news-grid,
    .feature-list,
    .channels-grid,
    .testimonial-list { grid-template-columns: repeat(2, 1fr); }

    .partner-grid,
    .stats-grid,
    .authors-grid { grid-template-columns: repeat(2, 1fr); }

    .matches-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }

    .hero-split { grid-template-columns: 1fr; }
    .honor-row { grid-template-columns: 1fr; }
    .honor-row-reverse { direction: ltr; }
}

@media (max-width: 640px) {
    .news-grid,
    .feature-list,
    .testimonial-list,
    .channels-grid,
    .post-list-grid,
    .related-grid,
    .authors-grid,
    .matches-grid { grid-template-columns: 1fr; }

    .partner-grid,
    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .steps-grid { grid-template-columns: 1fr; }
    .qr-grid { grid-template-columns: 1fr; max-width: 300px; margin: 0 auto; }

    .faq-list { max-width: 100%; }
}