/* ============================================================
   TIEII 2027 全站样式 home.css (v=20260930c)
   —— 自包含版：已并入原 style.css 中首页实际生效的规则，
   首页不再加载 style.css（内页不受影响）。
   主色延续 logo/banner 蓝：#0d47a1 / #1976d2
   辅助色：#00b8d4 青 · #42a5f5 天蓝 · #07244f 墨蓝 · #eaf3fe 浅蓝底
   Hover 动效体系：渐变填充分区 · 扫光填充 · 脉冲圆环 ·
   角标括号 · 底部填充按钮 · 滑穿下划线 · 菱形旋转
   ============================================================ */

/* ---------- 0. Tokens ---------- */
:root {
    --tie-navy: #0d47a1;
    --tie-deep: #07244f;
    --tie-blue: #1976d2;
    --tie-sky: #005296;
    --tie-cyan: #176dc8;
    --tie-ink: #00449a;
    --tie-muted: #4a6285;
    --tie-line: #dbe7f6;
    --tie-tint: #eaf3fe;
    --tie-bg: #f6f9fe;
    --tie-grad: linear-gradient(120deg, #0d47a1 0%, #1976d2 55%, #176dc8 125%);
    --tie-shadow: 0 14px 34px rgba(10, 42, 96, .10);
    --tie-ease: cubic-bezier(.22, .9, .3, 1);
}

/* ---------- 1. Base（并入原 style.css 全局基础） ---------- */
/* bootstrap 内置 html{font-size:62.5%}，原 style.css 以 16px 覆盖，rem 基准须还原 */
html { font-size: 16px; }
body.tie-home {
    background: var(--tie-bg) !important;
    color: var(--tie-ink);
    /* 原全局 * 规则声明 Inter（未加载则回退 sans-serif），保持现状 */
    font-family: 'Inter', sans-serif;
    font-size: 17px;
    line-height: 1.8;
    text-align: justify;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body.tie-home ::selection { background: rgba(0, 184, 212, .25); }
/* 全局标题默认色（低特异性 0,0,1：本文件仅在 tie-home 页面加载，
   内容区/hero 的类规则可正常覆盖） */
h1, h2, h3 { color: var(--tie-ink); }
h4, h5, h6 { color: var(--tie-navy); font-weight: 700; }
body.tie-home a { color: var(--tie-blue); text-decoration: none; outline: 0; transition: color .18s ease; }
body.tie-home a:hover, body.tie-home a:focus { color: var(--tie-navy); text-decoration: none; outline: 0; }
body.tie-home ul, body.tie-home ol, body.tie-home li { list-style: none; }
body.tie-home li { display: block; padding: 0; }
body.tie-home img { border: 0; }
.tie-home .w-1200 { width: 100%; max-width: 1200px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
.tie-home .public_bg { background: #fff; }
@media (min-width: 1200px) {
    .tie-home .container { width: 1200px; padding-left: 24px; padding-right: 24px; }
}
.tie-wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.tie-section { padding: 78px 0; position: relative; }
#home, #dates, #quick-links, #topics, #publication, #submission, #organizer { scroll-margin-top: 96px; }

/* 章节头 */
.tie-head { text-align: center; max-width: 780px; margin: 0 auto 48px; }
.tie-head h2 {
    font-size: clamp(1.7rem, 2.8vw, 2.3rem);
    font-weight: 800;
    letter-spacing: -.015em;
    margin: 16px 0 10px;
}
.tie-head p { color: var(--tie-muted); font-size: 1.05rem; margin: 0; }
.tie-eyebrow {
    display: inline-flex; align-items: center; gap: 9px;
    padding: 6px 16px; border-radius: 999px;
    background: #fff; border: 1px solid var(--tie-line);
    color: var(--tie-navy);
    font-size: .78rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
    box-shadow: 0 4px 14px rgba(10, 42, 96, .08);
}
.tie-eyebrow::before {
    content: ''; width: 8px; height: 8px; flex: none;
    background: var(--tie-grad); border-radius: 2px;
    transform: rotate(45deg);
}

/* ---------- 2. 导航栏 ----------
   全局层：原 style.css gov 层基础（<992 深蓝渐变菜单条 + 移动端下拉展开）；
   桌面层（≥992）：白底重绘 + 渐变填充 Hover。
   菜单 ul 带内联 height/line-height/border-radius，需 !important 覆盖。 */
body.tie-home header.nav {
    position: sticky;
    top: 0; left: 0;
    z-index: 9999;
    height: auto !important;
    min-height: 64px;
    background: #fff !important;
    border-bottom: 1px solid var(--tie-line);
    box-shadow: 0 2px 8px rgba(0, 0, 0, .05);
    transition: box-shadow .25s ease;
}
body.tie-home header.nav.is-scrolled { box-shadow: 0 12px 32px rgba(7, 36, 79, .12); }
body.tie-home .navkk {
    position: relative;
    display: flex; align-items: center; justify-content: flex-start;
    gap: 20px;
    padding: 8px 24px 8px 12px !important;
    min-height: 64px;
}
body.tie-home .nav .logo {
    display: flex; align-items: center;
    margin: 0 !important; margin-top: 0 !important;
    line-height: 1 !important;
    cursor: default; user-select: none; filter: none;
}
body.tie-home .nav .logo img { height: 76px !important; width: auto; display: block; }
/* 桌面导航（≥992）：横排菜单条。必须在媒体查询内——
   若全局生效会压过 bootstrap collapse 的 display:none，导致移动端菜单横排溢出 */
@media (min-width: 992px) {
    body.tie-home #main-menu {
        display: flex; flex-wrap: nowrap; justify-content: center; align-items: center;
        gap: 0; overflow: visible;
        height: 44px !important;
        line-height: normal !important;
        margin: 0 !important; margin-top: 0 !important;
        border-radius: 8px !important;
        background: linear-gradient(135deg, #06255a 0%, #0d47a1 50%, #1565c0 100%) !important;
        /* 菜单条脱离文档流、相对导航栏绝对居中（logo 贴左）；
           下拉菜单包含块为 li.relative，不受此 transform 影响 */
        position: absolute; left: 55%; transform: translateX(-50%);
    }
}
body.tie-home #main-menu > li { line-height: normal !important; float: none; }
body.tie-home #main-menu > li > a,
body.tie-home #main-menu .dropdown-toggle {
    color: rgba(255, 255, 255, .92) !important;
    line-height: 44px !important;
    padding: 0 8px !important;
    font-size: .92rem !important;
    font-weight: 600 !important;
    letter-spacing: normal;
    border-radius: 0;
    white-space: nowrap;
    display: block;
    transition: background-color .22s ease, color .22s ease;
    position: relative;
}
/* <992 菜单项：底部青色滑入条（原样式） */
body.tie-home #main-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    width: 0; height: 3px;
    background: #00b8d4;
    transition: width .28s ease, left .28s ease;
}
body.tie-home #main-menu > li > a:hover::after,
body.tie-home #main-menu .layui-this > a::after { width: 100%; left: 0; }
body.tie-home #main-menu > li > a:hover,
body.tie-home #main-menu .dropdown-toggle:hover,
body.tie-home #main-menu .open > a,
body.tie-home #main-menu .open > a:hover {
    background: rgba(255, 255, 255, .12) !important;
    color: #fff !important;
    text-decoration: none;
}
body.tie-home #main-menu .caret { border-top-color: currentColor; margin-left: 5px; }
body.tie-home .layui-nav .layui-this > a,
body.tie-home .layui-nav .layui-this > a:hover {
    background: rgba(255, 255, 255, .15) !important;
    color: #fff !important;
    border-radius: 0;
}
/* 下拉（<992 基础：白卡片） */
body.tie-home #main-menu .dropdown-menu {
    background: #fff;
    border: 0;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, .15);
    padding: 6px 0;
    min-width: 220px;
    margin-top: 0;
    z-index: 1000;
}
body.tie-home #main-menu .dropdown-menu li a {
    color: var(--tie-ink) !important;
    background: transparent !important;
    border-radius: 0;
    line-height: 1.6 !important;
    padding: 11px 22px !important;
    font-size: .98rem;
    font-weight: 500;
    border-bottom: 0 !important;
    white-space: normal;
    transition: background-color .18s ease, color .18s ease, padding-left .18s ease;
}
body.tie-home #main-menu .dropdown-menu li a:hover,
body.tie-home #main-menu .dropdown-menu li a:focus,
body.tie-home #main-menu .dropdown-menu li.layui-this > a {
    background: var(--tie-tint) !important;
    color: var(--tie-navy) !important;
    padding-left: 28px !important;
}

@media (min-width: 992px) {
    /* 桌面：CSS hover / JS open 均可展开 */
    body.tie-home #main-menu li.dropdown:hover > .dropdown-menu,
    body.tie-home #main-menu li.dropdown.open > .dropdown-menu,
    body.tie-home #main-menu li.dropdown:focus-within > .dropdown-menu { display: block; }
    /* 桌面重绘：白底毛玻璃 + 渐变填充 Hover（替代旧下划线扫入） */
    body.tie-home header.nav {
        background: rgba(255, 255, 255, .94) !important;
        backdrop-filter: blur(14px) saturate(1.4);
        box-shadow: 0 1px 0 var(--tie-line);
    }
    body.tie-home header.nav.is-scrolled { box-shadow: 0 12px 32px rgba(7, 36, 79, .12); }
    body.tie-home #main-menu {
        background: transparent !important;
        height: auto !important; line-height: normal !important;
        border-radius: 0 !important; box-shadow: none !important;
    }
    body.tie-home #main-menu > li { height: auto !important; }
    /* 下拉 trigger：三态统一白字+渐变填充，与普通菜单项效果一致
       背景透明覆盖全局层 rgba(255,255,255,.12) 白罩（会盖住 ::before 渐变） */
    body.tie-home #main-menu .dropdown-toggle { color: var(--tie-ink) !important; background: transparent !important; }
    /* 直接 hover trigger → 走 > li > a:hover 白字+::before scaleY(1) 渐变 */
    /* 鼠标移入子项时 li 仍 hover → 保持白字+渐变 */
    /* JS .open 展开 → 同样保持白字+渐变 */
    body.tie-home #main-menu .dropdown-toggle:hover,
    body.tie-home #main-menu li.dropdown:hover > a.dropdown-toggle,
    body.tie-home #main-menu li.dropdown.open > a,
    body.tie-home #main-menu li.dropdown.open > a:hover {
        color: #fff !important;
        background: transparent !important;
    }
    body.tie-home #main-menu .dropdown-toggle:hover::before,
    body.tie-home #main-menu li.dropdown:hover > a.dropdown-toggle::before,
    body.tie-home #main-menu li.dropdown.open > a::before,
    body.tie-home #main-menu li.dropdown.open > a:hover::before {
        transform: scaleY(1);
    }
    body.tie-home #main-menu > li > a {
        color: var(--tie-ink) !important;
        line-height: 44px !important;
        padding: 0 15px !important;
        position: relative; z-index: 1;
        transition: color .3s ease;
    }
    body.tie-home #main-menu > li > a::after { display: none !important; }
    body.tie-home #main-menu > li > a::before {
        content: '';
        position: absolute; left: 6px; right: 6px; top: 5px; bottom: 5px;
        border-radius: 9px;
        background: var(--tie-grad);
        transform: scaleY(0); transform-origin: bottom;
        transition: transform .32s var(--tie-ease);
        z-index: -1;
    }
    body.tie-home #main-menu > li > a:hover,
    body.tie-home #main-menu > li.tie-cur > a { color: #fff !important; }
    body.tie-home #main-menu > li > a:hover::before,
    body.tie-home #main-menu > li.tie-cur > a::before { transform: scaleY(1); }
    body.tie-home .layui-nav .layui-this > a { background: transparent !important; }
    /* 下拉：白卡片 + 淡蓝高亮（无位移） */
    body.tie-home #main-menu .dropdown-menu {
        background: #fff !important;
        border: 1px solid var(--tie-line);
        border-radius: 12px;
        padding: 8px !important;
        box-shadow: 0 18px 44px rgba(7, 36, 79, .16);
    }
    body.tie-home #main-menu .dropdown-menu li a {
        border-radius: 8px !important;
        padding: 9px 14px !important;
        color: var(--tie-ink) !important;
        transition: background .25s ease, color .25s ease;
    }
    body.tie-home #main-menu .dropdown-menu li a:hover {
        background: var(--tie-tint) !important;
        color: var(--tie-navy) !important;
    }
}

/* 窄桌面（992-1259）：菜单项收窄，防止导航溢出产生横向滚动 */
@media (min-width: 992px) and (max-width: 1259px) {
    body.tie-home header.nav .navkk { padding: 4px 12px !important; gap: 8px !important; min-height: 56px; }
    body.tie-home header.nav .logo img { height: 34px !important; max-height: 34px; }
    body.tie-home #main-menu {
        flex-wrap: wrap;
        justify-content: flex-end;
        row-gap: 0;
    }
    body.tie-home #main-menu > li > a {
        padding: 0 7px !important;
        font-size: .88rem !important;
        white-space: nowrap;
    }
}

/* 移动端（≤991）：菜单条回归 bootstrap collapse 折叠机制，
   展开态为深蓝纵排菜单（白字项样式沿用上面的全局 a 规则 + 青色滑条） */
@media (max-width: 991px) {
    body.tie-home #main-menu {
        margin: 0 !important;
        border-radius: 8px !important;
        background: linear-gradient(135deg, #06255a 0%, #0d47a1 50%, #1565c0 100%) !important;
        box-shadow: 0 10px 26px rgba(7, 36, 79, .18);
        padding: 4px 0;
    }
    body.tie-home #main-menu > li + li { border-top: 1px solid rgba(255, 255, 255, .08); }
    body.tie-home #main-menu > li > a,
    body.tie-home #main-menu .dropdown-toggle {
        font-size: 1rem !important;
        padding: 0 18px !important;
    }
}

/* 移动端（≤991）：下拉面板转为静态展开（覆盖 bootstrap display:none） */
@media (max-width: 991px) {
    body.tie-home #main-menu .dropdown-menu {
        position: relative;
        top: 100%; left: 0;
        z-index: 1000;
        float: none;
        display: block;
        min-width: 160px;
        padding: 5px 0;
        margin: 2px 0 0;
        text-align: left;
        font-size: 16px;
        border-radius: 0;
        box-shadow: none;
    }
    body.tie-home #main-menu .dropdown-menu > li a { margin: 3px 20px; }
    body.tie-home #main-menu .dropdown-toggle-2 .caret { display: none; }
    body.tie-home #main-menu .dropdown-menu-level-2 { margin-left: 15px; }
}

/* ---------- 3. Banner 轮播（并入原基础 + 新 Pager 动效） ---------- */
body.tie-home .sy-slider1 {
    width: 100%;
    height: auto !important;
    background: var(--tie-deep);
}
body.tie-home .sy-slider1 .sy-box,
body.tie-home .sy-slider1 .sy-slides-wrap,
body.tie-home .sy-slider1 .sy-slides-crop,
body.tie-home .sy-slider1 .sy-list {
    width: 100%;
    min-height: 360px !important;
}
body.tie-home #home-slider li > div {
    position: relative;
    background-size: cover !important;
    background-position: center center !important;
}
body.tie-home #home-slider li > div::after {
    content: '';
    position: absolute; left: 0; right: 0; bottom: 0; height: 130px;
    background: linear-gradient(180deg, transparent, rgba(7, 36, 79, .38));
    pointer-events: none;
}
body.tie-home .sy-slider1 .sy-controls { display: none !important; }
body.tie-home .sy-slider1 .sy-pager {
    position: absolute;
    bottom: 22px !important; left: 0; right: 0;
    z-index: 9;
    text-align: center;
}
body.tie-home .sy-slider1 .sy-pager li {
    width: auto !important; height: auto;
    margin: 0 5px !important;
    display: inline-block; float: none;
}
body.tie-home .sy-slider1 .sy-pager li a {
    width: 22px !important; height: 4px !important;
    border-radius: 99px !important;
    background: rgba(255, 255, 255, .5) !important;
    box-shadow: none !important;
    transition: width .3s var(--tie-ease), background .3s ease;
}
body.tie-home .sy-slider1 .sy-pager li.sy-active a {
    width: 15px !important; background: #0243a7 !important;
    transform: scale(1.3);
}
body.tie-home .sy-slider1 .sy-pager li a:hover {
    width: 32px !important; background: #fff !important;
}

/* ---------- 4. About / Welcome · 通栏 ---------- */
.tie-about {
    position: relative; overflow: hidden;
    padding: 100px 0 88px;
    background:
        radial-gradient(1200px 520px at 50% -8%, rgba(66, 165, 245, .18), transparent 65%),
        radial-gradient(900px 440px at 50% 112%, rgba(0, 184, 212, .12), transparent 62%),
        var(--tie-bg);
}
.tie-about::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(13, 71, 161, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13, 71, 161, .05) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: linear-gradient(180deg, #000 10%, transparent 90%);
    mask-image: linear-gradient(180deg, #000 10%, transparent 90%);
    pointer-events: none;
}
.tie-about-inner {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.tie-about-main { text-align: center; margin: 0 auto; }
.tie-about-title {
    font-size: clamp(2rem, 3.8vw, 3rem);
    font-weight: 800; line-height: 1.25;
    letter-spacing: -.02em;
    margin: 30px 0px 30px;
}
.tie-about-title::after {
    content: '';
    display: block; width: 88px; height: 4px;
    margin: 20px auto 0;
    border-radius: 99px;
    background: var(--tie-grad);
}
.tie-about-text { color: var(--tie-muted); line-height: 1.85; font-size: 1.08rem; text-align: center; }
.tie-about-text p { margin: 0 0 10px; }
.tie-about-text p:last-child { margin-bottom: 0; }
.tie-about-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; justify-content: center; }

/* 按钮动效：实心=渐变滑移，线框=自左填充 */
.tie-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 30px; border-radius: 999px;
    font-weight: 700; font-size: 1rem;
    position: relative; overflow: hidden;
    transition: box-shadow .35s ease, transform .35s var(--tie-ease);
}
.tie-btn-solid {
    color: #fff !important;
    background: linear-gradient(120deg, #0d47a1, #1976d2 50%, #3ba1ec);
    background-size: 220% 100%; background-position: 0% 0;
    box-shadow: 0 10px 26px rgba(13, 71, 161, .32);
}
.tie-btn-solid:hover {
    background-position: 100% 0;
    box-shadow: 0 16px 34px rgba(13, 71, 161, .42);
    transform: translateY(-2px);
    color: #fff;
}
.tie-btn-line { color: var(--tie-navy) !important; border: 2px solid var(--tie-blue); z-index: 1; }
.tie-btn-line::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--tie-grad);
    transform: scaleX(0); transform-origin: left;
    transition: transform .38s var(--tie-ease);
    z-index: -1;
}
.tie-btn-line:hover { color: #fff !important; border-color: transparent; }
.tie-btn-line:hover::before { transform: scaleX(1); }
.tie-btn-arrow { display: inline-block; transition: transform .3s var(--tie-ease); }
.tie-btn:hover .tie-btn-arrow { transform: translateX(4px); }

/* 信息横排：3 卡等宽 grid */
.tie-about-info-row {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 56px;
}
.tie-chip {
    display: flex; align-items: center; gap: 15px;
    background: #fff; border: 1px solid var(--tie-line);
    border-radius: 16px; padding: 18px 22px;
    box-shadow: 0 6px 18px rgba(10, 42, 96, .06);
    transition: border-color .3s ease, transform .3s var(--tie-ease), box-shadow .3s ease;
}
.tie-chip-ico {
    width: 46px; height: 46px; flex: none;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--tie-grad); color: #fff;
    transition: transform .35s var(--tie-ease), border-radius .35s ease;
}
.tie-chip-txt { display: flex; flex-direction: column; line-height: 1.4; font-weight: 700; color: var(--tie-ink); font-size: 1.02rem; }
.tie-chip-txt em { font-style: normal; font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tie-muted); font-weight: 700; margin-bottom: 3px; }
.tie-chip:hover { border-color: rgba(0, 184, 212, .55); transform: translateY(-4px); box-shadow: var(--tie-shadow); }
.tie-chip:hover .tie-chip-ico { transform: rotateY(180deg); border-radius: 50%; }

/* ---------- 5. Important Dates · Timeline ---------- */
.tie-dates {
    background: #fff;
}
.tie-timeline {
    list-style: none; margin: 0; padding: 6px 0 0;
    display: grid; grid-template-columns: repeat(4, 1fr);
    counter-reset: tld;
}
.tie-timeline::before {
    content: '';
    position: absolute; left: 9%; right: 9%; top: 33px; height: 3px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--tie-line), var(--tie-sky) 55%, var(--tie-cyan));
}
.tl-node { position: relative; text-align: center; padding: 0 12px; }
.tl-dot {
    counter-increment: tld;
    position: relative; z-index: 1;
    width: 54px; height: 54px; margin: 0 auto 18px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: #fff; color: var(--tie-navy);
    border: 3px solid var(--tie-sky);
    box-shadow: 0 0 0 7px #fff, 0 8px 20px rgba(10, 42, 96, .12);
    font-weight: 800; font-size: 1.05rem;
    transition: transform .35s var(--tie-ease), background .35s ease, color .35s ease, border-color .35s ease;
}
.tl-dot::before { content: counter(tld, decimal-leading-zero); }
.tl-date { font-weight: 800; font-size: 1.12rem; color: var(--tie-ink); }
.tl-label {
    margin-top: 5px;
    font-size: .8rem; font-weight: 800;
    letter-spacing: .12em; text-transform: uppercase;
    color: var(--tie-muted);
    transition: color .3s ease;
}
/* Hover：圆点填充渐变 + 脉冲圆环 */
.tl-node:hover .tl-dot {
    background: var(--tie-grad); color: #fff;
    border-color: transparent;
    transform: scale(1.14);
}
.tl-node:hover .tl-dot::after {
    content: '';
    position: absolute; inset: -10px;
    border-radius: 50%;
    border: 2px solid rgba(0, 184, 212, .55);
    animation: tiePulse 1.1s ease-out infinite;
}
.tl-node:hover .tl-label { color: var(--tie-navy); }
@keyframes tiePulse {
    0% { transform: scale(.78); opacity: 1; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* ---------- 6. Quick Navigation ---------- */
.tie-quick { background: var(--tie-tint); }
.tq-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tq-card {
    position: relative; overflow: hidden; isolation: isolate;
    display: flex; align-items: center; gap: 14px;
    background: #fff; border: 1px solid var(--tie-line);
    border-radius: 15px; padding: 19px 18px;
    transition: border-color .3s ease;
}
/* Hover：渐变从左扫入整卡填充 */
.tq-card::before {
    content: '';
    position: absolute; inset: 0; z-index: -1;
    background: var(--tie-grad);
    transform: translateX(-101%);
    transition: transform .45s var(--tie-ease);
}
/* 扫光高光条 */
.tq-card::after {
    content: '';
    position: absolute; top: 0; bottom: 0; left: -46%; width: 34%; z-index: -1;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .35), transparent);
    transform: skewX(-18deg);
    transition: left .55s var(--tie-ease);
}
.tq-card:hover { border-color: transparent; }
.tq-card:hover::before { transform: translateX(0); }
.tq-card:hover::after { left: 118%; }
.tq-icon {
    width: 46px; height: 46px; flex: none;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    background: var(--tie-tint); color: var(--tie-navy);
    transition: background .35s ease, color .35s ease, transform .35s var(--tie-ease);
}
.tq-label { font-weight: 700; color: var(--tie-ink); font-size: 1.02rem; transition: color .3s ease; }
.tq-arrow {
    margin-left: auto; color: #fff;
    opacity: 0; transform: translateX(-10px);
    transition: opacity .35s ease, transform .35s var(--tie-ease);
}
.tq-card:hover .tq-icon { background: rgba(255, 255, 255, .2); color: #fff; transform: translateX(5px); }
.tq-card:hover .tq-label { color: #fff; }
.tq-card:hover .tq-arrow { opacity: 1; transform: translateX(0); }

/* ---------- 7. Call for Papers · 六大主题 ---------- */
.tie-cfp { background: #fff; }
.tie-cfp-intro {
    max-width: 900px; margin: -14px auto 40px;
    text-align: center; color: var(--tie-muted); line-height: 1.8; font-size: 1.05rem;
}
.tie-cfp-intro p { margin: 0; }
.tie-topics {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 22px; counter-reset: tn;
}
.tie-topic {
    counter-increment: tn;
    position: relative; overflow: hidden; isolation: isolate;
    background: #fff;
    border: 1px solid var(--tie-line);
    border-radius: 18px;
    padding: 26px 26px 24px;
    transition: box-shadow .45s ease;
}
/* Hover：渐变自下而上填充整卡（背景分区动画） */
.tie-topic::before {
    content: '';
    position: absolute; inset: 0; z-index: 0;
    background: linear-gradient(165deg, #0d47a1 0%, #1976d2 58%, #00b8d4 135%);
    transform: scaleY(0); transform-origin: bottom;
    transition: transform .5s var(--tie-ease);
}
.tie-topic:hover { border-color: transparent; box-shadow: 0 22px 48px rgba(10, 42, 96, .22); }
.tie-topic:hover::before { transform: scaleY(1); }
.tie-topic-num {
    position: absolute; top: 2px; right: 16px; z-index: 1;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 3.6rem; font-weight: 800; line-height: 1;
    color: rgba(13, 71, 161, .08);
    transition: color .45s ease, transform .45s var(--tie-ease);
    pointer-events: none;
}
.tie-topic:hover .tie-topic-num { color: rgba(255, 255, 255, .16); transform: scale(1.12) translateY(-4px); }
.tie-topic-inner { position: relative; z-index: 1; }

/* 后台富文本卡片内层样式覆盖（含内联样式兜底） */
.tie-topic-inner h3 {
    font-size: 1.1rem !important;
    line-height: 1.5 !important;
    color: var(--tie-navy) !important;
    font-weight: 800 !important;
    margin: 0 0 14px !important;
    padding: 0 52px 12px 0 !important;
    border-bottom: 1px dashed var(--tie-line) !important;
    min-height: 46px;
    transition: color .4s ease, border-color .4s ease;
}
.tie-topic-inner h3 span {
    color: inherit !important;
    font-size: inherit !important;
    font-family: inherit !important;
    letter-spacing: 0 !important;
}
.tie-topic-inner ul {
    width: auto !important;
    margin: 0 !important; padding: 0 !important;
    list-style: none !important;
}
.tie-topic-inner li {
    position: relative;
    padding: 6px 0 6px 18px !important;
    color: var(--tie-muted);
    font-size: .96rem; line-height: 1.6;
    transition: color .3s ease, transform .3s var(--tie-ease);
}
/* 菱形符号 */
.tie-topic-inner li::before {
    content: '';
    position: absolute; left: 0; top: .92em;
    width: 7px; height: 7px;
    border: 2px solid var(--tie-cyan);
    border-radius: 2px;
    transform: rotate(45deg);
    transition: transform .35s var(--tie-ease), background .3s ease, border-color .3s ease;
}
.tie-topic-inner li p {
    margin: 0 !important;
    color: inherit !important;
    font-family: inherit !important;
}
.tie-topic-inner li:hover { color: var(--tie-navy); transform: translateX(4px); }
.tie-topic-inner li:hover::before { background: var(--tie-cyan); transform: rotate(225deg) scale(1.15); }
/* Hover 填充后文字反白 */
.tie-topic:hover .tie-topic-inner h3 { color: #fff !important; border-color: rgba(255, 255, 255, .32) !important; }
.tie-topic:hover .tie-topic-inner li { color: rgba(255, 255, 255, .92); }
.tie-topic:hover .tie-topic-inner li::before { border-color: rgba(255, 255, 255, .85); }
.tie-topic:hover .tie-topic-inner li:hover::before { background: #fff; }
.tie-topic:hover .tie-topic-inner li:hover { color: #fff; }

/* ---------- 8. Publication + Submission Guide 双栏 ---------- */
.tie-duo-sec { background: var(--tie-tint); }
.tie-duo { display: grid; grid-template-columns: 1.12fr .88fr; gap: 26px; align-items: stretch; }
.tie-panel {
    position: relative; overflow: hidden;
    background: #fff;
    border: 1px solid var(--tie-line);
    border-radius: 20px;
    padding: 36px 34px 32px;
    transition: box-shadow .4s ease;
}
/* Hover：左侧渐变竖条自上而下生长 */
.tie-panel::after {
    content: '';
    position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    background: var(--tie-grad);
    transform: scaleY(0); transform-origin: top;
    transition: transform .45s var(--tie-ease);
}
.tie-panel:hover { box-shadow: var(--tie-shadow); }
.tie-panel:hover::after { transform: scaleY(1); }
.tie-panel-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.tie-panel-ico {
    width: 48px; height: 48px; flex: none;
    display: flex; align-items: center; justify-content: center;
    border-radius: 13px;
    background: var(--tie-grad); color: #fff;
}
.tie-panel-head h2 { font-size: 1.45rem; font-weight: 800; margin: 0; letter-spacing: -.01em; }
.tie-panel-body { color: var(--tie-muted); font-size: 1rem; line-height: 1.8; }
.tie-panel-body p { margin: 0 0 10px; }
.tie-panel-body h5 { color: var(--tie-ink); font-weight: 800; font-size: 1.08rem; }

/* 下载按钮：描边胶囊，渐变自下而上填充 */
.tie-panel-sub .downloadmb {
    display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
    list-style: none; padding: 0; margin: 20px 0 0;
}
.tie-panel-sub .downloadmb li { display: inline-block; width: auto !important; margin: 0 8px 12px; }
.tie-panel-sub .downloadmb li a {
    display: inline-block;
    padding: 10px 24px;
    border: 2px solid var(--tie-blue);
    border-radius: 999px;
    color: var(--tie-navy) !important;
    background: transparent !important;
    box-shadow: none !important;
    font-weight: 700; font-size: .95rem;
    position: relative; overflow: hidden; z-index: 1;
    transition: color .3s ease, border-color .3s ease;
}
.tie-panel-sub .downloadmb li a::before {
    content: '';
    position: absolute; inset: 0; z-index: -1;
    background: var(--tie-grad);
    transform: translateY(101%);
    transition: transform .38s var(--tie-ease);
}
.tie-panel-sub .downloadmb li a:hover,
.tie-panel-sub .downloadmb li a:focus {
    color: #fff !important;
    border-color: transparent !important;
    box-shadow: 0 12px 26px rgba(13, 71, 161, .28) !important;
}
.tie-panel-sub .downloadmb li a:hover::before,
.tie-panel-sub .downloadmb li a:focus::before { transform: translateY(0); }

/* ---------- 9. Organizer ---------- */
.tie-org { background: #fff; }
.tie-org-body .committee-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 22px;
}
.tie-org-body .committee-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--tie-line);
    border-radius: 16px;
    padding: 30px 22px 26px;
    text-align: center;
    transition: transform .35s var(--tie-ease), box-shadow .35s ease, border-color .35s ease;
}
/* Hover：四角括号标记生长 */
.tie-org-body .committee-card::before,
.tie-org-body .committee-card::after {
    content: '';
    position: absolute;
    width: 20px; height: 20px;
    border: 3px solid var(--tie-cyan);
    opacity: 0;
    transition: opacity .3s ease, width .35s var(--tie-ease), height .35s var(--tie-ease);
}
.tie-org-body .committee-card::before {
    top: 10px; left: 10px;
    border-right: 0; border-bottom: 0;
    border-radius: 8px 0 0 0;
}
.tie-org-body .committee-card::after {
    bottom: 10px; right: 10px;
    border-left: 0; border-top: 0;
    border-radius: 0 0 8px 0;
}
.tie-org-body .committee-card:hover {
    transform: translateY(-5px);
    border-color: transparent;
    box-shadow: 0 18px 40px rgba(10, 42, 96, .16);
}
.tie-org-body .committee-card:hover::before,
.tie-org-body .committee-card:hover::after {
    opacity: 1; width: 34px; height: 34px;
}
.tie-org-body .committee-card img {
    max-width: 100%; max-height: 76px; width: auto; height: auto;
    background: var(--tie-tint);
    padding: 8px 12px;
    border-radius: 8px;
    transition: transform .35s var(--tie-ease);
}
.tie-org-body .committee-card:hover img { transform: scale(1.06); }
.tie-org-body .committee-card p { color: var(--tie-muted); font-size: .98rem; margin: 12px 0 0; }

/* ---------- 10. Footer（并入原基础） ---------- */
body.tie-home footer {
    position: relative;
    background: #0f53ab !important;
    color: #d2e4ff !important;
    padding: 46px 0 38px !important;
    margin-top: 0 !important;
    text-align: center;
    font-size: .95rem;
    line-height: 1.8;
    overflow: hidden;
}
body.tie-home footer::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, transparent, var(--tie-cyan) 28%, var(--tie-sky) 50%, var(--tie-cyan) 72%, transparent);
}
body.tie-home footer p { margin-bottom: 6px; }
body.tie-home footer a { color: #cfe2ff !important; position: relative; }
/* Hover：下划线滑穿（右出左进） */
body.tie-home footer a::after {
    content: '';
    position: absolute; left: 0; bottom: -3px;
    width: 100%; height: 1px;
    background: var(--tie-cyan);
    transform: scaleX(0); transform-origin: right;
    transition: transform .35s var(--tie-ease);
}
body.tie-home footer a:hover::after { transform: scaleX(1); transform-origin: left; }
body.tie-home footer a:hover { color: #fff !important; }
body.tie-home footer h4, body.tie-home footer strong { color: #e6efff; }

/* ---------- 11. 滚动入场动画（animation 不与 hover transition 冲突） ---------- */
.tie-ready .tie-reveal { opacity: 0; }
.tie-ready .tie-reveal.tie-in {
    opacity: 1;
    animation: tieUp .7s var(--tie-ease) both;
    animation-delay: calc(var(--tie-d, 0) * 90ms);
}
@keyframes tieUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}
/* 分组交错延迟（3n+3 与 3n 等价，已去重） */
.tie-topics .tie-reveal:nth-child(3n+2), .tie-topics .tie-reveal:nth-child(3n),
.tq-grid .tie-reveal:nth-child(4n+2), .tq-grid .tie-reveal:nth-child(4n) { --tie-d: 1; }
.tq-grid .tie-reveal:nth-child(4n+3) { --tie-d: 2; }
.tie-timeline .tie-reveal:nth-child(2) { --tie-d: 1; }
.tie-timeline .tie-reveal:nth-child(3) { --tie-d: 2; }
.tie-timeline .tie-reveal:nth-child(4) { --tie-d: 3; }
.tie-duo .tie-reveal:nth-child(2) { --tie-d: 1; }

@media (prefers-reduced-motion: reduce) {
    .tie-ready .tie-reveal { opacity: 1 !important; animation: none !important; }
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 991px) {
    body.tie-home .nav .logo img { height: 40px !important; }
    .tie-about-info-row { grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 44px; }
    .tie-topics { grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .tie-duo { grid-template-columns: 1fr; }
    .tie-section { padding: 62px 0; }
}
@media (max-width: 767px) {
    .tie-about { padding: 80px 0 64px; }
    .tie-about-info-row { grid-template-columns: 1fr; gap: 14px; margin-top: 36px; }
    .tie-about-text { text-align: left; font-size: 1.02rem; }
    .tie-timeline { grid-template-columns: 1fr; gap: 30px; }
    .tie-timeline::before {
        left: 27px; right: auto; top: 12px; bottom: 12px;
        width: 3px; height: auto;
        background: linear-gradient(180deg, var(--tie-line), var(--tie-sky) 55%, var(--tie-cyan));
    }
    .tl-node { display: grid; grid-template-columns: 54px 1fr; column-gap: 18px; text-align: left; padding: 0; }
    .tl-dot { grid-row: 1 / span 2; grid-column: 1; margin: 0; }
    .tl-date { grid-column: 2; align-self: end; }
    .tl-label { grid-column: 2; align-self: start; margin-top: 2px; }
    .tq-grid { grid-template-columns: 1fr; }
    .tie-topics { grid-template-columns: 1fr; }
    .tie-topic-inner h3 { padding-right: 0 !important; min-height: 0; }
}
@media (max-width: 575px) {
    .tie-about { padding: 64px 0 56px; }
    .tie-chip { padding: 14px 16px; gap: 12px; }
    .tie-head { margin-bottom: 36px; }
}