/* =======================================================
   友链页面
   ======================================================= */

.friends-section {
    position: relative;
}

.friends-lead {
    max-width: 760px;
    margin: -8px auto 36px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.9;
}

.friends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 26px;
    align-items: stretch;
}

.friend-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 28px;
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1),
                border-color 0.3s ease,
                box-shadow 0.3s ease,
                background 0.3s ease;
}

.friend-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.85;
}

.friend-card::after {
    content: '';
    position: absolute;
    top: -46px;
    right: -42px;
    width: 128px;
    height: 128px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-color), transparent 68%);
    opacity: 0.08;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.friend-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-color);
    box-shadow: var(--glow);
}

/* 页面 CSS 在 style.css 之后加载，单独恢复卡片揭示动画的过渡。 */
.friend-card.reveal {
    transition:
        opacity 0.65s cubic-bezier(0.22, 0.61, 0.36, 1),
        transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
    transition-delay: var(--reveal-delay, 0ms);
}

.friend-card:hover::after {
    opacity: 0.16;
    transform: scale(1.12);
}

.friend-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
}

.friend-avatar {
    flex: 0 0 70px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-light);
    box-shadow: 0 0 0 4px var(--card-bg), 0 8px 20px rgba(0, 0, 0, 0.16);
    transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1),
                border-color 0.3s ease;
}

.friend-card:hover .friend-avatar {
    transform: rotate(-3deg) scale(1.04);
    border-color: var(--primary-color);
}

.friend-identity {
    min-width: 0;
}

.friend-identity h3 {
    margin-bottom: 4px;
    color: var(--text-primary);
    font-size: 1.18rem;
    line-height: 1.35;
}

.friend-desc {
    margin: 0;
    color: var(--primary-color);
    font-size: 0.86rem;
    line-height: 1.5;
}

.friend-body {
    flex: 1;
    margin-bottom: 18px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.85;
}

.friend-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 20px;
    padding: 0;
    list-style: none;
}

.friend-tags li {
    padding: 4px 10px;
    color: var(--text-secondary);
    background: rgba(127, 127, 127, 0.09);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    font-size: 0.74rem;
    line-height: 1.5;
}

.friend-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px dashed var(--border-light);
}

.friend-domain {
    color: var(--text-secondary);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    opacity: 0.8;
}

.friend-visit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 0.88rem;
    font-weight: 600;
    white-space: nowrap;
}

.friend-visit i {
    font-size: 0.74rem;
    transition: transform 0.25s ease;
}

.friend-card:hover .friend-visit i {
    transform: translateX(4px);
}

.friends-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 30px;
    padding: 14px 18px;
    color: var(--text-secondary);
    background: rgba(127, 127, 127, 0.05);
    border: 1px dashed var(--border-light);
    border-radius: 12px;
    font-size: 0.88rem;
    line-height: 1.7;
}

.friends-note i {
    margin-top: 4px;
    color: var(--primary-color);
}

.friends-cta {
    margin-top: 30px;
    text-align: center;
}

/* 首页友链预览 */
.home-friends {
    padding-top: 0;
}

.home-friends-box {
    position: relative;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 28px 32px;
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.home-friends-box::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    opacity: 0.9;
}

.home-friends-box:hover {
    border-color: var(--primary-color);
}

.home-friends-copy {
    flex: 1 1 auto;
    min-width: 0;
}

.home-friends-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.16em;
}

.home-friends-copy h2 {
    margin: 6px 0 8px;
    color: var(--text-primary);
    font-size: clamp(1.35rem, 2.4vw, 1.8rem);
    line-height: 1.35;
}

.home-friends-copy p {
    max-width: 640px;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.home-friends-avatars {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    padding-left: 10px;
}

.home-friends-avatars img {
    width: 56px;
    height: 56px;
    margin-left: -14px;
    object-fit: cover;
    background: var(--card-bg);
    border: 3px solid var(--bg-primary);
    border-radius: 50%;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.16);
    transition: transform 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.home-friends-avatars img:first-child {
    margin-left: 0;
}

.home-friends-avatars img:nth-child(2) {
    transition-delay: 0.04s;
}

.home-friends-avatars img:nth-child(3) {
    transition-delay: 0.08s;
}

.home-friends-box:hover .home-friends-avatars img {
    transform: translateY(-3px);
}

.home-friends-cta {
    flex: 0 0 auto;
    white-space: nowrap;
}

.home-friends-cta i {
    margin-left: 6px;
    font-size: 0.78rem;
    transition: transform 0.25s ease;
}

.home-friends-cta:hover i {
    transform: translateX(4px);
}

body.theme-light .home-friends-box {
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.06);
}

body.theme-colorful .home-friends-box {
    box-shadow: 0 10px 30px rgba(77, 107, 254, 0.10);
}

body.theme-colorful .home-friends-box:hover {
    box-shadow: 0 18px 44px rgba(77, 107, 254, 0.16);
}

body.theme-light .friend-card {
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.06);
}

body.theme-colorful .friend-card {
    box-shadow: 0 10px 30px rgba(77, 107, 254, 0.10);
}

body.theme-colorful .friend-card:hover {
    box-shadow: 0 18px 44px rgba(77, 107, 254, 0.16);
}

@media (max-width: 768px) {
    .friends-lead {
        margin-bottom: 26px;
        text-align: left;
    }

    .friends-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .friend-card {
        padding: 22px;
    }

    .home-friends-box {
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
        padding: 24px;
    }

    .home-friends-avatars {
        padding-left: 0;
    }

    .home-friends-cta {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .friend-head {
        align-items: flex-start;
    }

    .friend-avatar {
        flex-basis: 60px;
        width: 60px;
        height: 60px;
    }

    .friend-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .home-friends-avatars img {
        width: 48px;
        height: 48px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .friend-card,
    .friend-card.reveal,
    .friend-card::after,
    .friend-avatar,
    .friend-visit i,
    .home-friends-box,
    .home-friends-avatars img,
    .home-friends-cta i {
        transition-duration: 0.01ms;
    }

    .friend-card:hover {
        transform: none;
    }
}