/* ==========================================================================
   IC技术圈 — 首页样式
   Loaded by index.html after column.css (which supplies the design tokens
   on :root plus body background / font).  Added 2026-10-02.
   ========================================================================== */

.home-sec {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 .75rem;
}
.home-sec > h5 {
    text-align: center;
    font-size: 1.06rem;
    font-weight: 650;
    letter-spacing: .02em;
    margin: 2.6rem 0 .4rem;
}
.home-sec .sec-sub {
    text-align: center;
    color: var(--c-ink-3);
    font-size: .82rem;
    margin-bottom: 1.1rem;
}

/* ---------- hero (replaces the old text-only blue carousel) -------------- */
.home-hero {
    background: linear-gradient(135deg, #17bdf5 0%, #00a4e4 45%, #0a6f96 100%);
    color: #fff;
    padding: 3.4rem .75rem 2.6rem;
    text-align: center;
}
.home-hero h1 {
    font-size: 2.05rem;
    font-weight: 700;
    letter-spacing: .1em;
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 40, 60, .18);
}
.home-hero .tag {
    color: rgba(255, 255, 255, .9);
    font-size: .96rem;
    letter-spacing: .05em;
    margin-top: .7rem;
}
.hero-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .55rem;
    margin-top: 1.7rem;
}
.hero-links a {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .55);
    border-radius: 999px;
    padding: .4rem 1.2rem;
    font-size: .9rem;
    text-decoration: none;
    transition: background .18s ease, border-color .18s ease;
}
.hero-links a:hover {
    background: rgba(255, 255, 255, .18);
    border-color: #fff;
    color: #fff;
}

/* ---------- search ------------------------------------------------------- */
.search-box {
    max-width: 620px;
    margin: 0 auto;
}
.search-box .row1 {
    display: flex;
    gap: .5rem;
}
.search-box input[type="text"] {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--c-line);
    border-radius: 999px;
    padding: .62rem 1.2rem;
    font-size: .95rem;
    outline: none;
    transition: border-color .18s ease, box-shadow .18s ease;
}
.search-box input[type="text"]:focus {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(0, 176, 240, .13);
}
.search-box .go {
    flex: none;
    border: 1px solid var(--c-accent);
    border-radius: 999px;
    background: var(--c-accent);
    color: #fff;
    font-size: .95rem;
    padding: .62rem 1.75rem;
    transition: background .18s ease, border-color .18s ease;
}
.search-box .go:hover {
    background: var(--c-accent-dark);
    border-color: var(--c-accent-dark);
}
.search-box .ext {
    text-align: center;
    color: var(--c-ink-3);
    font-size: .8rem;
    margin-top: .75rem;
}
.search-box .ext button {
    background: none;
    border: none;
    color: var(--c-link);
    font-size: .8rem;
    padding: 0 .3rem;
}
.search-box .ext button:hover {
    text-decoration: underline;
}
.chips {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: .5rem;
    max-width: 720px;
    margin: 1.15rem auto 0;
}
.chips a {
    background: var(--c-card);
    border: 1px solid var(--c-line);
    border-radius: 999px;
    color: var(--c-ink-2);
    font-size: .84rem;
    padding: .26rem 1rem;
    text-decoration: none;
    transition: border-color .18s ease, color .18s ease;
}
.chips a:hover {
    border-color: var(--c-accent);
    color: var(--c-accent-dark);
}

/* ---------- about -------------------------------------------------------- */
.about-card {
    background: var(--c-card);
    border: 1px solid var(--c-line);
    border-radius: 16px;
    padding: 1.75rem 1.9rem;
    margin-top: 2.6rem;
}
.about-card h5 {
    font-size: 1.06rem;
    font-weight: 650;
    margin: 0 0 .95rem;
}
.about-card p {
    color: var(--c-ink-2);
    font-size: .92rem;
    line-height: 1.95;
    margin: 0;
}
.about-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 3rem;
    margin-top: 1.5rem;
    padding-top: 1.3rem;
    border-top: 1px solid var(--c-line-soft);
}
.about-stats .n {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--c-accent-dark);
    line-height: 1.2;
}
.about-stats .k {
    font-size: .8rem;
    color: var(--c-ink-3);
    margin-top: .15rem;
}

/* ---------- member carousel --------------------------------------------- */
.member-card {
    background: var(--c-card);
    border: 1px solid var(--c-line);
    border-radius: 16px;
    padding: 1.7rem 1rem 1.35rem;
    margin-top: 1rem;
}
.member-slide {
    text-align: center;
    padding: 0 1rem;
}
.member-slide img {
    width: 220px;
    height: 220px;
    object-fit: contain;
    border: 1px solid var(--c-line);
    border-radius: 14px;
    background: #fff;
}
.member-slide .nm {
    font-size: 1.08rem;
    font-weight: 650;
    margin-top: .95rem;
}
.member-slide .in {
    color: var(--c-ink-2);
    font-size: .86rem;
    line-height: 1.72;
    /* reserve 3 lines so the card does not jump between slides */
    min-height: 4.45rem;
    max-width: 560px;
    margin: .4rem auto 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.member-card .more {
    text-align: center;
    margin-top: 1.4rem;
}

/* ---------- friend links ------------------------------------------------ */
.friendlinks-card {
    background: var(--c-card);
    border: 1px solid var(--c-line);
    border-radius: 16px;
    padding: 1.75rem 1.5rem 1.9rem;
    margin-top: 1rem;
}
#friendlinks {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1rem 1.6rem;
}
.friendlinks_item {
    margin: 0;
}
.friendlinks_item a {
    color: var(--c-ink-2);
    font-size: .9rem;
    text-decoration: none;
}
.friendlinks_item a:hover {
    color: var(--c-accent-dark);
}
.friendlinks_item img {
    height: 72px;
    width: auto;
    border-radius: 8px;
    opacity: .88;
    transition: opacity .18s ease;
}
.friendlinks_item a:hover img {
    opacity: 1;
}

/* ---------- ad slot ----------------------------------------------------- */
#adv_container {
    max-width: 1120px;
    margin: 2.4rem auto 0;
    border-radius: 14px;
    overflow: hidden;
}
#adv_container img {
    display: block;
    margin: 0 auto;
}

@media (max-width: 767.98px) {
    .home-hero {
        padding: 2.4rem .75rem 1.9rem;
    }
    .home-hero h1 {
        font-size: 1.6rem;
    }
    .member-slide img {
        width: 180px;
        height: 180px;
    }
    .friendlinks_item img {
        height: 50px;
    }
}