/* ============================================================
   VOLONGOTO · 主页样式
   Swiss International · 黑白红 · 直角 · 左对齐
   ============================================================ */

/* ============ Hero：Banner + 标题 ============ */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-banner {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.88);
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 40px;
}

.hero-kicker {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 30px;
    opacity: 0;
    animation: fadeInUp 0.15s var(--ease) 0.1s forwards;
}

.hero-title {
    font-size: clamp(56px, 13vw, 170px);
    font-weight: 300;
    line-height: 0.96;
    letter-spacing: -0.02em;
    color: var(--black);
    margin-bottom: 22px;
    opacity: 0;
    animation: fadeInUp 0.15s var(--ease) 0.2s forwards;
}

.hero-sub {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.4em;
    color: var(--black);
    text-transform: uppercase;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 0.15s var(--ease) 0.3s forwards;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.15s var(--ease) 0.4s forwards;
}

/* ============ 档案入口 ============ */
.directory { padding: 120px 0; background: var(--white); }

.dir-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.dir-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 36px 32px;
    border: 1px solid var(--black);
    background: var(--white);
    cursor: pointer;
    transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.dir-card:hover { border-color: var(--red); background: var(--gray-hover); }

.dir-num { font-size: 13px; font-weight: 500; color: var(--red); }
.dir-title { font-size: 30px; font-weight: 500; letter-spacing: -0.02em; color: var(--black); }
.dir-en { font-size: 11px; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray-text); }
.dir-desc { font-size: 14.5px; font-weight: 400; color: var(--black); line-height: 1.75; }

.dir-arrow {
    align-self: flex-start;
    margin-top: 4px;
    font-size: 14px;
    font-weight: 500;
    color: var(--black);
    transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.dir-card:hover .dir-arrow { transform: translateX(3px); color: var(--red); }

/* ============ 页脚 ============ */
.footer { padding: 48px 0 36px; background: var(--black); color: var(--white); }

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-brand { font-size: 15px; font-weight: 500; color: var(--white); }
.footer-brand span { color: var(--red); }
.footer-note { font-size: 11px; font-weight: 500; letter-spacing: 0.06em; color: var(--gray-text); }

/* ============ 响应式 ============ */
@media (max-width: 860px) {
    .hero-content { padding: 0 18px; }
    .dir-grid { grid-template-columns: 1fr; }
    .dir-card { padding: 28px 24px; }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}