/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: #2d3436;
    background-color: #f4f7fa;
}

.wrapper {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Top Bar */
.topbar {
    background: #ffffff;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.topbar-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.brand h1 {
    color: #1d3557;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.menu {
    display: flex;
    list-style: none;
    gap: 2.2rem;
}

.menu-link {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 6px 0;
}

.menu-link:hover,
.menu-link.is-current {
    color: #00b894;
}

.menu-link.is-current::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #00b894;
    border-radius: 2px;
}

.burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.burger-bar {
    width: 26px;
    height: 3px;
    background: #2d3436;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero */
.hero-area {
    background: linear-gradient(120deg, #00b894 0%, #0984e3 100%);
    color: #ffffff;
    padding: 140px 0 90px;
    text-align: center;
}

.hero-headline {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    line-height: 1.25;
}

.hero-tagline {
    font-size: 1.2rem;
    margin: 0 auto 2.2rem;
    opacity: 0.92;
    max-width: 640px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.action-btn {
    display: inline-block;
    padding: 13px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.action-btn--solid {
    background: #ffffff;
    color: #00b894;
}

.action-btn--solid:hover {
    background: #f1f8f5;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.action-btn--ghost {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.action-btn--ghost:hover {
    background: #ffffff;
    color: #00b894;
}

.action-btn--accent {
    background: #00b894;
    color: #ffffff;
}

.action-btn--accent:hover {
    background: #019170;
    transform: translateY(-2px);
}

/* Page Heading Banner */
.page-banner {
    background: linear-gradient(120deg, #00b894 0%, #0984e3 100%);
    color: #ffffff;
    padding: 130px 0 70px;
    text-align: center;
}

.page-banner h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-banner p {
    font-size: 1.1rem;
    opacity: 0.92;
}

/* Article Block */
.article-block {
    padding: 70px 0;
}

.article-card {
    background: #ffffff;
    padding: 44px;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
    margin-bottom: 32px;
}

.article-card h2 {
    color: #1d3557;
    font-size: 1.85rem;
    margin-bottom: 1.4rem;
    font-weight: 600;
}

.article-text p {
    font-size: 1.08rem;
    line-height: 1.85;
    color: #555;
}

/* Highlight Strip */
.highlight-strip {
    padding: 70px 0;
    background: #ffffff;
}

.zone-title {
    text-align: center;
    font-size: 2.25rem;
    color: #1d3557;
    margin-bottom: 2.6rem;
    font-weight: 600;
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.8rem;
    margin-top: 2.4rem;
}

.tile {
    background: #f4f7fa;
    padding: 2.2rem 1.6rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e6ecef;
}

.tile:hover {
    transform: translateY(-6px);
    background: #ffffff;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.1);
    border-color: #00b894;
}

.tile-glyph {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.tile h3 {
    color: #1d3557;
    font-size: 1.22rem;
    margin-bottom: 0.85rem;
    font-weight: 600;
}

.tile p {
    color: #666;
    line-height: 1.7;
}

/* Mission */
.mission-strip {
    background: #1d3557;
    color: #ffffff;
    padding: 70px 0;
}

.mission-inner {
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.mission-inner h2 {
    font-size: 2.25rem;
    margin-bottom: 1.6rem;
    font-weight: 600;
}

.mission-inner p {
    font-size: 1.15rem;
    line-height: 1.85;
    opacity: 0.92;
}

/* Detailed Capability */
.capabilities {
    margin-top: 1.5rem;
}

.capability-row {
    background: #ffffff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.06);
    margin-bottom: 1.6rem;
    border-left: 4px solid #00b894;
}

.capability-row h3 {
    color: #1d3557;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.capability-row p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.75;
}

.capability-row ul {
    list-style: none;
    padding-left: 0;
}

.capability-row li {
    padding: 0.45rem 0 0.45rem 1.6rem;
    color: #555;
    position: relative;
}

.capability-row li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00b894;
    font-weight: bold;
}

/* Value Strip */
.value-strip {
    padding: 70px 0;
    background: #f4f7fa;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.8rem;
    margin-top: 2.4rem;
}

.value-cell {
    background: #ffffff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.06);
    text-align: center;
}

.value-cell h3 {
    color: #1d3557;
    font-size: 1.22rem;
    margin-bottom: 0.85rem;
    font-weight: 600;
}

.value-cell p {
    color: #666;
    line-height: 1.7;
}

/* Closing CTA */
.closing-cta {
    background: linear-gradient(120deg, #00b894 0%, #0984e3 100%);
    color: #ffffff;
    padding: 70px 0;
    text-align: center;
}

.closing-cta h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.closing-cta p {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    opacity: 0.92;
}

/* Footer */
.site-foot {
    background: #1d3557;
    color: #ffffff;
    padding: 48px 0 22px;
}

.foot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2.2rem;
    margin-bottom: 2rem;
}

.foot-col h3,
.foot-col h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.foot-col ul {
    list-style: none;
}

.foot-col ul li {
    margin-bottom: 0.55rem;
}

.foot-col a {
    color: #b8c4d2;
    text-decoration: none;
    transition: color 0.3s ease;
}

.foot-col a:hover {
    color: #00b894;
}

.foot-col p {
    color: #b8c4d2;
    line-height: 1.7;
}

.foot-line {
    border-top: 1px solid #2c3e50;
    padding-top: 22px;
    text-align: center;
    color: #b8c4d2;
}

.foot-line a {
    color: #00b894;
    text-decoration: none;
}

.foot-line a:hover {
    color: #0984e3;
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .burger {
        display: flex;
    }

    .menu {
        position: fixed;
        left: -100%;
        top: 72px;
        flex-direction: column;
        background-color: #ffffff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);
        padding: 2rem 0;
        gap: 1rem;
    }

    .menu.is-open {
        left: 0;
    }

    .hero-headline {
        font-size: 2.1rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .page-banner h1 {
        font-size: 2rem;
    }

    .zone-title {
        font-size: 1.85rem;
    }

    .article-card {
        padding: 2rem;
    }

    .article-card h2 {
        font-size: 1.55rem;
    }

    .tile-grid,
    .value-grid {
        grid-template-columns: 1fr;
    }

    .foot-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .wrapper {
        padding: 0 16px;
    }

    .hero-area {
        padding: 110px 0 60px;
    }

    .hero-headline {
        font-size: 1.85rem;
    }

    .article-card {
        padding: 1.5rem;
    }
}