.sec-t {
    font-size: 2.15rem;
    font-weight: 800;
    color: var(--deep);
    letter-spacing: 1px
}

.sec-h {
    text-align: center;
    margin-bottom: 58px
}

/* ===== reveal ===== */
.ru {
    opacity: 0;
    transform: translateY(28px);
    transition: .62s cubic-bezier(.2,.72,.3,1)
}

    .ru.in {
        opacity: 1;
        transform: none
    }

/* ===== 会议简介 ===== */
.lead-txt {
    background: rgba(255,255,255,.55);
    border: 1.6px solid var(--line);
    border-radius: 26px;
    padding: 54px 60px;
}

    .lead-txt p {
        font-size: 1.03rem;
        margin-bottom: 20px;
        text-align: justify
    }

    .lead-txt .hl {
        background: linear-gradient(transparent 60%,rgba(177,177,232,.6) 0);
        font-weight: 700;
        color: var(--deep)
    }

/* ===== 重要信息四宫格 ===== */
.grid4 {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 26px
}

.g4 {
    position: relative;
    background: var(--card);
    border: 1.6px solid var(--line);
    border-radius: 22px;
    padding: 40px 24px 32px;
    text-align: center;
    transition: .34s;
    overflow: hidden;
}

    .g4::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 24px;
        transform: translateX(-50%);
        width: 44px;
        height: 4px;
        border-radius: 3px;
        background: var(--bar);
        opacity: .5;
        transition: .34s
    }

    .g4:hover {
        transform: translateY(-7px);
        box-shadow: 0 22px 46px rgba(120,112,180,.24);
        border-color: #A89AD8
    }

        .g4:hover::after {
            width: 72px;
            opacity: 1
        }

    .g4 .ic {
        width: 68px;
        height: 68px;
        margin: 0 auto 22px;
        border-radius: 20px;
        background: linear-gradient(150deg,#ECC8C9,#A99CC8);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.85rem;
        box-shadow: 0 10px 24px rgba(140,130,190,.3)
    }

    .g4 h4 {
        font-size: 1.16rem;
        font-weight: 800;
        color: var(--deep);
        margin-bottom: 14px
    }

    .g4 ul {
        list-style: none;
        font-size: .88rem;
        color: var(--soft);
        line-height: 1.95
    }

        .g4 ul a {
            transition: .2s;
            border-bottom: 1px solid transparent
        }

            .g4 ul a:hover {
                color: var(--deep);
                border-bottom-color: var(--deep)
            }

    .g4 .sm {
        display: inline-block;
        margin-top: 14px;
        font-size: .84rem;
        font-weight: 700;
        color: var(--bar)
    }

/* ===== 组织机构（主办/承办） ===== */
.org-logo-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    background: rgba(255,255,255,.66);
    border: 1.4px solid var(--line);
    border-radius: 18px;
    padding: 20px 28px;
    transition: .25s;
}

    .org-logo-card:hover {
        border-color: var(--bar);
        transform: translateY(-2px);
    }

    .org-logo-card span {
        font-size: .95rem;
        font-weight: 700;
        color: var(--deep);
        text-align: center;
        line-height: 1.7;
    }

/* ===== 往届历史收录标记 ===== */
.hist-badge {
    padding: 0 14px 22px;
    margin-top: -12px;
    font-size: .8rem;
    color: var(--soft);
    text-align: center;
    line-height: 1.6;
}

/* ===== 主协办 ===== */
.org-h {
    font-size: 1.12rem;
    font-weight: 800;
    color: var(--deep);
    margin: 44px 0 20px;
    padding-left: 15px;
    border-left: 5px solid var(--bar)
}

.org-row {
    display: flex;
    flex-wrap: wrap;
    gap: 13px
}

.org-tag {
    background: rgba(255,255,255,.66);
    border: 1.4px solid var(--line);
    border-radius: 12px;
    padding: 12px 24px;
    font-size: .92rem;
    transition: .25s
}

    .org-tag:hover {
        border-color: var(--bar);
        color: var(--deep);
        transform: translateY(-2px)
    }

/* ===== 出版检索 ===== */
.pub {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 44px;
    align-items: center
}

.pub-txt {
    background: rgba(255,255,255,.55);
    border: 1.6px solid var(--line);
    border-radius: 26px;
    padding: 48px 46px
}

    .pub-txt p {
        font-size: 1.02rem;
        margin-bottom: 14px
    }

    .pub-txt b {
        color: var(--deep)
    }

.pub-badges {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 26px
}

    .pub-badges span {
        font-size: .86rem;
        font-weight: 700;
        padding: 9px 20px;
        border-radius: 11px;
        background: rgba(255,255,255,.75);
        border: 1.4px solid var(--line);
        color: var(--deep)
    }

.pub-visual {
    text-align: center
}

    .pub-visual .ring {
        width: 262px;
        height: 262px;
        margin: 0 auto;
        border-radius: 50%;
        background: linear-gradient(140deg,#ECC8C9,#8F8FD6);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        box-shadow: 0 22px 54px rgba(120,112,180,.3)
    }

        .pub-visual .ring b {
            font-size: 2.3rem;
            color: #fff;
            letter-spacing: 3px
        }

        .pub-visual .ring small {
            color: rgba(255,255,255,.92);
            font-size: .82rem;
            margin-top: 8px;
            letter-spacing: 1px
        }

/* ===== 特别分会 ===== */
.fh {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 26px
}

.fh-card {
    display: flex;
    gap: 22px;
    background: rgba(255,255,255,.55);
    border: 1.6px solid var(--line);
    border-radius: 24px;
    padding: 32px 30px;
    transition: .34s
}

    .fh-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 22px 46px rgba(120,112,180,.22)
    }

    .fh-card .fh-ico {
        width: 74px;
        height: 74px;
        border-radius: 20px;
        flex-shrink: 0;
        background: linear-gradient(150deg,#ECC8C9,#A99CC8);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.9rem
    }

    .fh-card h4 {
        font-size: 1.08rem;
        color: var(--deep);
        margin-bottom: 11px;
        line-height: 1.55;
        font-weight: 800
    }

    .fh-card p {
        font-size: .88rem;
        color: var(--soft);
        margin-bottom: 14px;
        line-height: 1.85
    }

    .fh-card .more {
        font-size: .84rem;
        font-weight: 700;
        color: var(--bar)
    }

/* ===== 会议动态 ===== */
.news {
    background: rgba(255,255,255,.55);
    border: 1.6px solid var(--line);
    border-radius: 26px;
    padding: 44px 50px
}

.news-item {
    display: flex;
    gap: 18px;
    padding: 19px 0;
    border-bottom: 1px dashed rgba(140,130,190,.35)
}

    .news-item:last-child {
        border-bottom: 0
    }

    .news-item .dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: var(--bar);
        margin-top: 11px;
        flex-shrink: 0
    }

    .news-item p {
        font-size: .97rem;
        overflow-wrap: anywhere;
        word-break: break-word; /* 兼容旧浏览器 */
    }

    .news-item .lk {
        color: var(--deep);
        font-weight: 700;
        white-space: nowrap
    }

/* ===== 往届历史 ===== */
.hist {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 24px
}

.hist-card {
    background: rgba(255,255,255,.55);
    border: 1.6px solid var(--line);
    border-radius: 22px;
    overflow: hidden;
    transition: .34s
}

    .hist-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 22px 46px rgba(120,112,180,.24)
    }

    .hist-card .ph {
        height: 176px;
        background: linear-gradient(150deg,#ECC8C9,#8F8FD6);
        background-size:100% 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 1.55rem;
        font-weight: 800;
        letter-spacing: 1px
    }

    .hist-card h5 {
        padding: 20px 22px;
        font-size: .98rem;
        color: var(--deep);
        line-height: 1.7;
        font-weight: 700;
        text-align:center;
    }

/* ===== 会议地点 ===== */
.venue {
    display: grid;
    grid-template-columns: 0.6fr 2fr;
    gap: 44px;
    align-items: center;
}

    .venue .ph {
        width: 262px;
        height: 350px;
        border-radius: 26px;
        background: linear-gradient(160deg,#ECC8C9 0%,#B9B0D8 60%,#8F8FD6 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        box-shadow: 0 22px 54px rgba(120,112,180,.26);
        background-image: url(../images/Yibin.jpg);
        background-size: 100% 100%;
        place-self: center;
    }

        .venue .ph b {
            font-size: 2.1rem;
            letter-spacing: 6px;
            text-shadow: 0 2px 22px rgba(90,85,140,.32)
        }

.venue-txt h3 {
    font-size: 1.62rem;
    color: var(--deep);
    margin-bottom: 18px;
    font-weight: 800
}

.venue-txt p {
    font-size: .98rem;
    margin-bottom: 15px;
    text-align: justify
}

.venue-txt .tag {
    color: var(--deep);
    font-weight: 700;
    margin-top: 8px
}


@media(max-width:960px) {
    .grid4, .hist {
        grid-template-columns: repeat(2,1fr)
    }

    .pub, .venue, .fh {
        grid-template-columns: 1fr
    }

    .sec-t {
        font-size: 1.72rem
    }
}

@media(max-width:560px) {
    .grid4 {
        grid-template-columns: repeat(2,1fr);
    }

    .hist {
        grid-template-columns: repeat(1,1fr);
    }

    .fh {
        grid-template-columns: repeat(1,1fr);
    }
}