/* =========================================================
   安徽理工大学计算机科学与工程学院
   College Website UI
   style.css
   ========================================================= */

/* =========================================================
   01. CSS VARIABLES
   ========================================================= */

:root {
    --primary: #0878e8;
    --primary-light: #2d94f3;
    --primary-lighter: #eaf5ff;
    --primary-pale: #f4f9ff;
    --primary-dark: #0567cc;

    --blue-text: #075eaf;

    --text-main: #18324d;
    --text-secondary: #64778c;
    --text-light: #8da0b3;

    --white: #ffffff;
    --black: #111827;

    --border: #e6edf5;
    --border-light: #eef3f8;

    --bg: #ffffff;
    --bg-light: #f7fbff;
    --bg-blue: #eef8ff;

    --shadow-sm: 0 4px 16px rgba(20, 80, 140, 0.06);
    --shadow: 0 10px 30px rgba(20, 80, 140, 0.09);
    --shadow-lg: 0 18px 50px rgba(20, 80, 140, 0.13);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;

    --container: 1400px;

    --header-height: 168px;

    --transition: all .3s ease;
}


/* =========================================================
   02. RESET
   ========================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;

    font-family:
        "Microsoft YaHei",
        "PingFang SC",
        "Hiragino Sans GB",
        Arial,
        Helvetica,
        sans-serif;

    color: var(--text-main);
    background: var(--bg);

    font-size: 15px;
    line-height: 1.7;

    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    overflow-x: hidden;
}

body.mobile-menu-open,
body.search-open {
    overflow: hidden;
}

img {
    display: block;
    max-width: 100%;
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    margin: 0;
    padding: 0;

    font: inherit;

    border: 0;
    outline: none;

    background: none;
}

button {
    cursor: pointer;
}

ul,
ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
}


/* =========================================================
   03. COMMON CONTAINER
   ========================================================= */

.container {
    width: var(--container);
    max-width: calc(100% - 60px);

    margin-left: auto;
    margin-right: auto;
}


/* =========================================================
   04. TOP BAR
   ========================================================= */

.top-bar {
    position: relative;
    z-index: 1000;

    width: 100%;

    min-height: 42px;

    background:
        linear-gradient(
            90deg,
            #0878e8 0%,
            #0878e8 45%,
            #1687ef 100%
        );

    color: #ffffff;
}

.top-bar-inner {
    width: 100%;
    max-width: none;

    padding: 0 30px;

    min-height: 42px;

    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.top-links {
    display: flex;
    align-items: center;
    gap: 24px;

    font-size: 13px;
}

.top-links a {
    position: relative;

    color: rgba(255,255,255,.92);

    transition: var(--transition);
}

.top-links a:hover {
    color: #ffffff;
}

.top-links a + a::before {
    content: "";

    position: absolute;

    left: -13px;
    top: 50%;

    width: 1px;
    height: 12px;

    transform: translateY(-50%);

    background: rgba(255,255,255,.35);
}


/* =========================================================
   05. BRAND AREA
   ========================================================= */

.brand-area {
    position: relative;
    z-index: 900;

    background: #ffffff;

    border-bottom: 1px solid #edf3f8;
}

.brand-inner {
    min-height: 92px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;

    min-width: 0;
}

.brand-logo {
    
    height: 58px;

    margin-right: 16px;

    border-radius: 50%;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

   

  
}
.brand-logo img{height: 58px;}
.brand-logo i {
    font-size: 27px;
}

.brand-text {
    min-width: 0;
}

.brand-cn {
    display: block;

    color: #163c62;

    font-size: 28px;
    line-height: 1.25;

    font-weight: 700;

    letter-spacing: 1px;

    white-space: nowrap;
}

.brand-en {
    display: block;

    margin-top: 4px;

    color: #7c91a5;

    font-size: 11px;

    letter-spacing: 1.8px;

    text-transform: uppercase;

    white-space: nowrap;
}

.brand-right {
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand-slogan {
    padding-left: 28px;

    border-left: 1px solid #e4edf5;

    color: #678198;

    font-size: 13px;

    letter-spacing: 1px;
}

.brand-slogan strong {
    display: block;

    color: var(--primary);

    font-size: 15px;

    font-weight: 600;
}


/* =========================================================
   06. MAIN NAVIGATION
   ========================================================= */

.main-nav {
    position: relative;
    z-index: 1000;

    width: 100%;

    background:
        linear-gradient(
            90deg,
            #0878e8 0%,
            #0878e8 55%,
            #1587ed 100%
        );

    box-shadow:
        0 5px 18px rgba(8,120,232,.13);
}

.nav-inner {
    min-height: 58px;

    display: flex;
    align-items: center;
}

.nav-menu {
    width: 100%;

    display: flex;
    align-items: stretch;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    position: relative;

    min-width: 92px;
    height: 58px;

    padding: 0 19px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: rgba(255,255,255,.96);

    font-size: 15px;

    white-space: nowrap;

    transition: var(--transition);
}

/* .nav-item > a::after {
    content: "";

    position: absolute;

    left: 50%;
    bottom: 0;

    width: 0;
    height: 3px;

    transform: translateX(-50%);

    background: #ffffff;

    transition: var(--transition);
} */

.nav-item:hover > a,
.nav-item.active > a {
    background: rgba(255,255,255,.10);
}

.nav-item:hover > a::after,
.nav-item.active > a::after {
    width: 36px;
}

.nav-item.has-submenu > a {
    padding-right: 30px;
}

/* .nav-item.has-submenu > a::before {
    content: "\f107";

    position: absolute;

    right: 12px;
    top: 50%;

    transform: translateY(-50%);

    font-family: "Font Awesome 6 Free";
    font-weight: 900;

    font-size: 11px;

    opacity: .8;
} */


/* =========================================================
   07. SUBMENU
   ========================================================= */

.submenu {
    position: absolute;

    left: 50%;
    top: calc(100% + 8px);

    width: 230px;

    transform:
        translate(-50%, 8px);

    opacity: 0;
    visibility: hidden;

    padding: 14px;

    background: #ffffff;

    border-radius: 0 0 10px 10px;

    box-shadow:
        0 18px 40px rgba(10,65,120,.15);

    transition:
        opacity .25s ease,
        transform .25s ease,
        visibility .25s ease;
}

.submenu::before {
    content: "";

    position: absolute;

    left: 50%;
    top: -6px;

    width: 12px;
    height: 12px;

    transform: translateX(-50%) rotate(45deg);

    background: #ffffff;
}

.nav-item:hover > .submenu {
    opacity: 1;
    visibility: visible;

    transform:
        translate(-50%, 0);
}

.submenu-inner {
    position: relative;
    z-index: 2;
}

.submenu-title {
    padding: 9px 10px 11px;

    color: var(--primary);

    font-size: 14px;
    font-weight: 700;

    border-bottom: 1px solid #edf3f8;
}

.submenu-links {
    padding-top: 7px;
}

.submenu-links a {
    display: flex;
    align-items: center;

    min-height: 38px;

    padding: 0 10px;

    color: #50687f;

    font-size: 13px;

    border-radius: 5px;

    transition: var(--transition);
}

.submenu-links a::before {
    content: "";

    width: 4px;
    height: 4px;

    margin-right: 9px;

    border-radius: 50%;

    background: #b9c9d8;

    transition: var(--transition);
}

.submenu-links a:hover {
    color: var(--primary);

    background: var(--primary-pale);

    padding-left: 15px;
}

.submenu-links a:hover::before {
    background: var(--primary);
}


/* =========================================================
   08. NAV SEARCH
   ========================================================= */

.nav-search {
    flex: 0 0 54px;

    width: 54px;
    height: 58px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

    font-size: 17px;

    transition: var(--transition);
}

.nav-search:hover {
    background: rgba(255,255,255,.12);
}


/* =========================================================
   09. MOBILE MENU BUTTON
   ========================================================= */

.mobile-menu-btn {
    display: none;

    width: 48px;
    height: 48px;

    align-items: center;
    justify-content: center;

    color: var(--primary);

    font-size: 21px;

    border-radius: 8px;

    background: var(--primary-pale);
}


/* =========================================================
   10. MOBILE NAV
   ========================================================= */

.mobile-nav {
    position: fixed;

    inset: 0;

    z-index: 5000;

    display: none;

    background: rgba(5,38,72,.35);

    opacity: 0;
    visibility: hidden;

    transition: var(--transition);
}

.mobile-nav.open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-content {
    position: absolute;

    right: 0;
    top: 0;

    width: min(390px, 88vw);
    height: 100%;

    overflow-y: auto;

    background: #ffffff;

    box-shadow:
        -10px 0 35px rgba(10,50,90,.15);

    transform: translateX(100%);

    transition: transform .35s ease;
}

.mobile-nav.open .mobile-nav-content {
    transform: translateX(0);
}

.mobile-nav-header {
    min-height: 68px;

    padding: 0 20px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    background:
        linear-gradient(
            90deg,
            #0878e8,
            #1587ed
        );

    color: #ffffff;
}

.mobile-nav-title {
    font-size: 17px;
    font-weight: 700;
}

.mobile-nav-close {
    width: 40px;
    height: 40px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

    font-size: 19px;
}

.mobile-nav-group {
    border-bottom: 1px solid #edf2f6;
}

.mobile-nav-group > a {
    min-height: 52px;

    padding: 0 20px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    color: #29465f;

    font-size: 15px;
    font-weight: 600;
}

.mobile-nav-group > a i {
    color: #94a7ba;

    transition: var(--transition);
}

.mobile-nav-group.open > a i {
    transform: rotate(180deg);

    color: var(--primary);
}

.mobile-submenu {
    display: none;

    padding: 4px 20px 13px;

    background: #f7fbff;
}

.mobile-nav-group.open .mobile-submenu {
    display: block;
}

.mobile-submenu a {
    display: block;

    padding: 8px 10px;

    color: #64798c;

    font-size: 13px;
}


/* =========================================================
   11. SEARCH OVERLAY
   ========================================================= */

.search-overlay {
    position: fixed;

    inset: 0;

    z-index: 6000;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 30px;

    background:
        rgba(5,37,70,.82);

    backdrop-filter: blur(10px);

    opacity: 0;
    visibility: hidden;

    transition: var(--transition);
}

.search-overlay.open {
    opacity: 1;
    visibility: visible;
}

.search-box {
    position: relative;

    width: min(760px, 100%);

    padding: 42px;

    border-radius: 14px;

    background: #ffffff;

    box-shadow:
        0 30px 80px rgba(0,30,70,.25);
}

.search-close {
    position: absolute;

    right: 20px;
    top: 20px;

    width: 38px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #71869b;

    font-size: 18px;

    border-radius: 50%;

    transition: var(--transition);
}

.search-close:hover {
    color: var(--primary);

    background: var(--primary-pale);
}

.search-label {
    margin-bottom: 18px;

    color: #163e63;

    font-size: 22px;
    font-weight: 700;
}

.search-form {
    display: flex;

    height: 54px;

    border: 1px solid #dbe7f1;

    border-radius: 8px;

    overflow: hidden;

    transition: var(--transition);
}

.search-form:focus-within {
    border-color: var(--primary);

    box-shadow:
        0 0 0 4px rgba(8,120,232,.08);
}

.search-form input {
    flex: 1;

    min-width: 0;

    padding: 0 17px;

    color: var(--text-main);

    font-size: 15px;
}

.search-form button {
    width: 58px;

    color: #ffffff;

    background: var(--primary);

    transition: var(--transition);
}

.search-form button:hover {
    background: var(--primary-dark);
}


/* =========================================================
   12. HERO
   ========================================================= */

.hero {
    position: relative;

    width: 100%;

    height: 520px;

    overflow: hidden;

    background: #063e76;
}

.hero-slider {
    position: relative;

    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;

    inset: 0;

    opacity: 0;
    visibility: hidden;

    transition:
        opacity .8s ease,
        visibility .8s ease;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

.hero-bg {
    position: absolute;

    inset: 0;

    background-position: center;
    background-size: cover;

    transform: scale(1.03);

    transition:
        transform 7s ease;
}

.hero-slide.active .hero-bg {
    transform: scale(1);
}


/* ---------------------------------------------------------
   CSS ONLY BANNER BACKGROUND
   --------------------------------------------------------- */

.hero-bg-1 {
    background:
        radial-gradient(
            circle at 78% 28%,
            rgba(87,188,255,.30),
            transparent 25%
        ),
        radial-gradient(
            circle at 20% 75%,
            rgba(40,153,255,.20),
            transparent 30%
        ),
        linear-gradient(
            125deg,
            #043d79 0%,
            #0568bd 48%,
            #0b8ce9 100%
        );
}

.hero-bg-2 {
    background:
        radial-gradient(
            circle at 75% 35%,
            rgba(255,255,255,.20),
            transparent 24%
        ),
        linear-gradient(
            125deg,
            #064b8f 0%,
            #0878e8 52%,
            #25a3f2 100%
        );
}

.hero-bg-3 {
    background:
        radial-gradient(
            circle at 70% 30%,
            rgba(115,215,255,.30),
            transparent 25%
        ),
        linear-gradient(
            125deg,
            #063d76,
            #0567cc 52%,
            #0c9ce8
        );
}

.hero-overlay {
    position: absolute;

    inset: 0;

    background:
        linear-gradient(
            90deg,
            rgba(2,38,78,.86) 0%,
            rgba(4,72,133,.58) 46%,
            rgba(6,128,221,.12) 100%
        );

    z-index: 2;
}


/* =========================================================
   13. HERO CONTENT
   ========================================================= */

.hero-content {
    position: relative;
    z-index: 10;

    height: 100%;

    display: flex;
    align-items: center;
}

.hero-copy {
    width: 700px;

    padding-bottom: 40px;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;

    margin-bottom: 17px;

    color: rgba(255,255,255,.85);

    font-size: 14px;

    letter-spacing: 3px;
}

.hero-kicker::before {
    content: "";

    width: 36px;
    height: 2px;

    margin-right: 12px;

    background: #ffffff;
}

.hero-copy h1 {
    color: #ffffff;

    font-size: clamp(38px, 4vw, 62px);

    line-height: 1.18;

    font-weight: 700;

    letter-spacing: 2px;

    text-shadow:
        0 4px 18px rgba(0,20,50,.25);
}

.hero-copy p {
    max-width: 610px;

    margin-top: 18px;

    color: rgba(255,255,255,.86);

    font-size: 16px;

    line-height: 1.9;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;

    margin-top: 30px;

    padding: 0 23px;

    min-height: 46px;

    color: var(--primary);

    background: #ffffff;

    border-radius: 5px;

    font-size: 14px;
    font-weight: 600;

    box-shadow:
        0 8px 25px rgba(0,30,70,.16);

    transition: var(--transition);
}

.hero-btn:hover {
    color: #ffffff;

    background: var(--primary);

    transform: translateY(-2px);

    box-shadow:
        0 12px 30px rgba(0,40,90,.22);
}


/* =========================================================
   14. HERO TECHNOLOGY DECORATIONS
   ========================================================= */

.hero-tech {
    position: absolute;

    right: -30px;
    top: 50%;

    width: 560px;
    height: 560px;

    transform: translateY(-50%);

    pointer-events: none;
}

.tech-circle {
    position: absolute;

    left: 50%;
    top: 50%;

    border-radius: 50%;

    transform:
        translate(-50%, -50%);

    border: 1px solid rgba(255,255,255,.20);
}

.tech-circle:nth-child(1) {
    width: 420px;
    height: 420px;
}

.tech-circle:nth-child(2) {
    width: 310px;
    height: 310px;

    border-color: rgba(255,255,255,.28);
}

.tech-circle:nth-child(3) {
    width: 190px;
    height: 190px;

    border-color: rgba(255,255,255,.35);
}

.tech-grid {
    position: absolute;

    inset: 60px;

    background-image:
        linear-gradient(
            rgba(255,255,255,.08) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255,255,255,.08) 1px,
            transparent 1px
        );

    background-size: 28px 28px;

    mask-image:
        radial-gradient(
            circle,
            black 0%,
            transparent 72%
        );
}

.tech-line {
    position: absolute;

    width: 150px;
    height: 1px;

    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(255,255,255,.55)
        );

    transform-origin: left center;
}

.tech-line:nth-child(5) {
    left: 52%;
    top: 29%;

    transform: rotate(28deg);
}

.tech-line:nth-child(6) {
    left: 57%;
    top: 68%;

    transform: rotate(-28deg);
}

.tech-node {
    position: absolute;

    width: 8px;
    height: 8px;

    border-radius: 50%;

    background: #ffffff;

    box-shadow:
        0 0 0 6px rgba(255,255,255,.10),
        0 0 22px rgba(255,255,255,.55);
}

.tech-node:nth-child(7) {
    left: 51%;
    top: 28%;
}

.tech-node:nth-child(8) {
    left: 71%;
    top: 40%;
}

.tech-node:nth-child(9) {
    left: 65%;
    top: 69%;
}


/* =========================================================
   15. HERO CONTROLS
   ========================================================= */

.hero-controls {
    position: absolute;

    left: 0;
    right: 0;
    bottom: 42px;

    z-index: 30;
}

.hero-controls-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-dots {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-dot {
    width: 28px;
    height: 3px;

    background: rgba(255,255,255,.35);

    cursor: pointer;

    transition: var(--transition);
}

.hero-dot.active {
    width: 52px;

    background: #ffffff;
}

.hero-arrows {
    display: flex;
    gap: 8px;
}

.hero-prev,
.hero-next {
    width: 42px;
    height: 42px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

    border: 1px solid rgba(255,255,255,.35);

    border-radius: 50%;

    transition: var(--transition);
}

.hero-prev:hover,
.hero-next:hover {
    background: rgba(255,255,255,.15);

    border-color: #ffffff;
}

.hero-bottom {
    position: absolute;

    left: 0;
    right: 0;
    bottom: 0;

    z-index: 20;

    height: 1px;

    background: rgba(255,255,255,.16);
}

.hero-bottom-inner {
    position: relative;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-scroll {
    position: absolute;

    bottom: 18px;
    left: 50%;

    transform: translateX(-50%);

    color: rgba(255,255,255,.68);

    font-size: 11px;

    letter-spacing: 2px;

    text-transform: uppercase;
}

.hero-index {
    position: absolute;

    right: 0;
    bottom: 18px;

    color: rgba(255,255,255,.70);

    font-family: Arial, sans-serif;

    font-size: 12px;

    letter-spacing: 2px;
}


/* =========================================================
   16. COMMON SECTION
   ========================================================= */

.section {
    position: relative;

    padding: 78px 0;
}

.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;

    margin-bottom: 38px;
}

.section-heading {
    position: relative;

    display: flex;
    align-items: flex-end;
}

.section-number {
    margin-right: 14px;

    color: rgba(8,120,232,.12);

    font-family: Arial, sans-serif;

    font-size: 60px;

    line-height: .9;

    font-weight: 700;
}

.section-title {
    position: relative;
}

.section-title-cn {
    color: #173b5d;

    font-size: 30px;

    line-height: 1.25;

    font-weight: 700;
}

.section-en {
    margin-top: 5px;

    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 11px;

    letter-spacing: 2.8px;

    text-transform: uppercase;
}

.more-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;

    min-height: 34px;

    padding: 0 14px;

    color: #ffffff;

    background: var(--primary);

    border-radius: 20px;

    font-size: 11px;
    font-weight: 700;

    letter-spacing: .6px;

    text-transform: uppercase;

    transition: var(--transition);
}

.more-btn:hover {
    background: var(--primary-dark);

    transform: translateY(-2px);

    box-shadow:
        0 6px 15px rgba(8,120,232,.20);
}


/* =========================================================
   17. NEWS SECTION
   ========================================================= */

.news-section {
    background: #ffffff;
}

.news-layout {
    display: grid;

    grid-template-columns:
        minmax(390px, 1fr)
        minmax(0, 1.28fr);

    gap: 55px;

    align-items: stretch;
}


/* ---------------------------------------------------------
   FEATURED NEWS
   --------------------------------------------------------- */

.featured-news {
    position: relative;

    min-height: 420px;

    overflow: hidden;

    border-radius: 10px;

    background:
        linear-gradient(
            145deg,
            #075ea9,
            #0878e8
        );

    box-shadow:
        0 16px 40px rgba(8,120,232,.15);
}

.featured-image {
    position: absolute;

    inset: 0;

    opacity: 1;
}

.image-placeholder {
    position: relative;

    width: 100%;
    height: 100%;

    overflow: hidden;

    background:
        radial-gradient(
            circle at 70% 35%,
            rgba(255,255,255,.18),
            transparent 24%
        ),
        linear-gradient(
            135deg,
            #07559b,
            #0a8be5
        );
}

.image-placeholder::before {
    content: "";

    position: absolute;

    left: 50%;
    top: 50%;

    width: 260px;
    height: 260px;

    transform: translate(-50%, -50%);

    border: 1px solid rgba(255,255,255,.25);

    border-radius: 50%;
}

.image-placeholder::after {
    content: "";

    position: absolute;

    left: 50%;
    top: 50%;

    width: 150px;
    height: 150px;

    transform:
        translate(-50%, -50%)
        rotate(45deg);

    border: 1px solid rgba(255,255,255,.22);
}

.placeholder-tech {
    position: absolute;

    inset: 30px;

    background-image:
        linear-gradient(
            rgba(255,255,255,.09) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255,255,255,.09) 1px,
            transparent 1px
        );

    background-size: 26px 26px;

    mask-image:
        radial-gradient(
            circle,
            black 0%,
            transparent 70%
        );
}

.featured-tag {
    position: absolute;

    left: 25px;
    top: 25px;

    z-index: 4;

    padding: 5px 10px;

    color: #ffffff;

    background: rgba(255,255,255,.14);

    border: 1px solid rgba(255,255,255,.24);

    border-radius: 4px;

    font-size: 11px;

    backdrop-filter: blur(8px);
}

.featured-content {
    position: absolute;

    left: 0;
    right: 0;
    bottom: 0;

    z-index: 5;

    padding: 35px 35px 30px;

    background:
        linear-gradient(
            transparent,
            rgba(0,35,75,.82)
        );
}

.news-date-large {
    color: rgba(255,255,255,.78);

    font-family: Arial, sans-serif;

    font-size: 12px;

    letter-spacing: 1.5px;
}

.featured-content h3 {
    margin-top: 9px;

    color: #ffffff;

    font-size: 21px;

    line-height: 1.55;

    font-weight: 600;
}

.featured-info {
    margin-top: 8px;

    color: rgba(255,255,255,.72);

    font-size: 13px;

    line-height: 1.7;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;

    margin-top: 18px;

    color: #ffffff;

    font-size: 12px;

    transition: var(--transition);
}

.read-more:hover {
    gap: 13px;
}


/* ---------------------------------------------------------
   NEWS LIST
   --------------------------------------------------------- */

.news-list {
    display: flex;
    flex-direction: column;

    border-top: 1px solid #e9eff5;
}

.news-list-item {
    min-height: 86px;

    display: grid;

    grid-template-columns: 75px minmax(0, 1fr) 30px;

    gap: 20px;

    align-items: center;

    border-bottom: 1px solid #e9eff5;

    transition: var(--transition);
}

.news-list-item:hover {
    padding-left: 8px;

    background: var(--primary-pale);
}

.news-date {
    color: #6d8296;

    font-family: Arial, sans-serif;

    font-size: 12px;

    line-height: 1.3;

    text-align: center;
}

.news-date strong {
    display: block;

    color: var(--primary);

    font-size: 23px;

    font-weight: 700;
}

.news-date span {
    display: block;

    margin-top: 1px;

    font-size: 11px;
}

.news-list-content {
    min-width: 0;
}

.news-category {
  

    margin-bottom: 4px;

    color: var(--primary);

    font-size: 11px;
}

.news-list-content h4 {
    overflow: hidden;

    color: #29465f;

    font-size: 15px;

    font-weight: 600;

    white-space: nowrap;

    text-overflow: ellipsis;

    transition: var(--transition);
}

.news-list-item:hover h4 {
    color: var(--primary);
}

.news-list-content p {
    margin-top: 3px;

    overflow: hidden;

    color: #8495a5;

    font-size: 12px;

    white-space: nowrap;

    text-overflow: ellipsis;
}

.news-item-arrow {
    color: #b4c2ce;

    transition: var(--transition);
}

.news-list-item:hover .news-item-arrow {
    color: var(--primary);

    transform: translateX(4px);
}


/* =========================================================
   18. INFORMATION SECTION
   Academic Research + Notice
   ========================================================= */

.info-section {
    position: relative;

    padding: 72px 0;

    background:
        linear-gradient(
            180deg,
            #eef8ff 0%,
            #f7fbff 100%
        );
}

.info-section::before {
    content: "";

    position: absolute;

    left: 0;
    top: 0;

    width: 100%;
    height: 1px;

    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(8,120,232,.22),
            transparent
        );
}

.info-grid {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    gap: 30px;
}

.info-panel {
    position: relative;

    padding: 30px 32px 24px;

    background: rgba(255,255,255,.90);

    border-radius: 10px;

    box-shadow:
        0 8px 28px rgba(15,80,130,.06);

    overflow: hidden;
}

.info-panel::after {
    content: "";

    position: absolute;

    right: -35px;
    top: -35px;

    width: 120px;
    height: 120px;

    border-radius: 50%;

    border: 1px solid rgba(8,120,232,.08);
}

.info-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding-bottom: 18px;

    border-bottom: 1px solid #e8f0f6;
}

.info-title {
    display: flex;
    align-items: baseline;
    gap: 11px;
}

.info-title-cn {
    color: #163c60;

    font-size: 23px;

    font-weight: 700;
}

.info-title-en {
    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 10px;

    letter-spacing: 1.7px;

    text-transform: uppercase;
}

.info-more {
    color: var(--primary);

    font-size: 12px;

    transition: var(--transition);
}

.info-more:hover {
    transform: translateX(4px);
}

.info-list {
    padding-top: 6px;
}

.info-item {
    min-height: 63px;

    display: grid;

    grid-template-columns: 75px minmax(0, 1fr) 18px;

    gap: 14px;

    align-items: center;

    border-bottom: 1px solid #edf2f6;

    transition: var(--transition);
}

.info-item:last-child {
    border-bottom: 0;
}

.info-item:hover {
    padding-left: 5px;
}

.info-date {
    color: var(--primary);

    font-family: Arial, sans-serif;

    font-size: 16px;
}

.info-text {
    overflow: hidden;

    color: #4f667b;

    font-size: 16px;

    white-space: nowrap;

    text-overflow: ellipsis;

    transition: var(--transition);
}

.info-item:hover .info-text {
    color: var(--primary);
}

.info-item i {
    color: #b1bfcc;

    font-size: 11px;

    transition: var(--transition);
}

.info-item:hover i {
    color: var(--primary);

    transform: translateX(3px);
}


/* =========================================================
   19. FOOTER
   ========================================================= */

.site-footer {
    position: relative;

    color: rgba(255,255,255,.80);

    background:
        linear-gradient(
            135deg,
            #075eaf 0%,
            #0878e8 58%,
            #1587ed 100%
        );

    overflow: hidden;
}

.site-footer::before {
    content: "";

    position: absolute;

    right: -180px;
    top: -180px;

    width: 520px;
    height: 520px;

    border-radius: 50%;

    border: 1px solid rgba(255,255,255,.08);
}

.site-footer::after {
    content: "";

    position: absolute;

    right: -80px;
    bottom: -300px;

    width: 500px;
    height: 500px;

    border-radius: 50%;

    border: 1px solid rgba(255,255,255,.06);
}

.footer-top-line {
    position: relative;
    z-index: 2;

    height: 4px;

    background:
        linear-gradient(
            90deg,
            rgba(255,255,255,.18),
            #ffffff,
            rgba(255,255,255,.18)
        );
}

.footer-main {
    position: relative;
    z-index: 3;

    padding: 55px 0 42px;
}

.footer-grid {
    display: grid;

    grid-template-columns:
        1.25fr
        1fr
        .9fr
        .65fr;

    gap: 55px;
}


/* ---------------------------------------------------------
   FOOTER BRAND
   --------------------------------------------------------- */

.footer-brand {
    min-width: 0;
}

.footer-logo {
    display: flex;
    align-items: center;

    margin-bottom: 20px;
}

.footer-logo-symbol {
    width: 52px;
    height: 52px;

    margin-right: 14px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;

    color: var(--primary);

    background: #ffffff;

    box-shadow:
        0 7px 18px rgba(0,40,90,.14);
}

.footer-logo-symbol i {
    font-size: 24px;
}

.footer-logo-text strong {
    display: block;

    color: #ffffff;

    font-size: 19px;

    font-weight: 700;
}

.footer-logo-text span {
    display: block;

    margin-top: 2px;

    color: rgba(255,255,255,.66);

    font-family: Arial, sans-serif;

    font-size: 9px;

    letter-spacing: 1.4px;

    text-transform: uppercase;
}

.footer-contact {
    color: rgba(255,255,255,.70);

    font-size: 14px;

    line-height: 2;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
}

.footer-contact i {
    flex: 0 0 19px;

    margin-top: 6px;

    color: rgba(255,255,255,.78);
}


/* ---------------------------------------------------------
   FOOTER TITLES
   --------------------------------------------------------- */

.footer-title {
    position: relative;

    margin-bottom: 20px;

    padding-bottom: 11px;

    color: #ffffff;

    font-size: 16px;

    font-weight: 700;
}

.footer-title::after {
    content: "";

    position: absolute;

    left: 0;
    bottom: 0;

    width: 28px;
    height: 2px;

    background: #ffffff;
}


/* ---------------------------------------------------------
   FOOTER NAV
   --------------------------------------------------------- */

.footer-nav-grid {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    column-gap: 20px;
    row-gap: 3px;
}

.footer-nav-grid a {
    display: block;

    padding: 5px 0;

    color: rgba(255,255,255,.69);

    font-size: 14px;

    transition: var(--transition);
}

.footer-nav-grid a:hover {
    color: #ffffff;

    padding-left: 5px;
}


/* ---------------------------------------------------------
   FOOTER LINKS
   --------------------------------------------------------- */

.footer-link-list a {
    display: block;

    padding: 5px 0;

    color: rgba(255,255,255,.69);

    font-size: 14px;

    transition: var(--transition);
}

.footer-link-list a:hover {
    color: #ffffff;

    padding-left: 5px;
}

.footer-link-list a i {
    width: 18px;

    color: rgba(255,255,255,.60);
}


/* ---------------------------------------------------------
   FOOTER QR
   --------------------------------------------------------- */

.footer-qrcode {
    text-align: center;
}

.footer-qrcode .footer-title {
    text-align: left;
}

.qrcode-box {
    display: flex;
    justify-content: flex-start;
}

.qrcode-placeholder {
    position: relative;

    width: 112px;
    height: 112px;

    padding: 9px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #ffffff;

    border-radius: 5px;
}

.qr-grid {
    width: 82px;
    height: 82px;

    background:
        linear-gradient(
            90deg,
            #111 10%,
            transparent 10% 20%,
            #111 20% 35%,
            transparent 35% 48%,
            #111 48% 58%,
            transparent 58% 67%,
            #111 67% 80%,
            transparent 80%
        ),
        linear-gradient(
            #111 10%,
            transparent 10% 20%,
            #111 20% 35%,
            transparent 35% 48%,
            #111 48% 58%,
            transparent 58% 67%,
            #111 67% 80%,
            transparent 80%
        );

    background-size: 16px 16px;

    opacity: .85;
}

.footer-qrcode p {
    margin-top: 10px;

    color: rgba(255,255,255,.62);

    font-size: 14px;

    text-align: left;
}


/* ---------------------------------------------------------
   FOOTER BOTTOM
   --------------------------------------------------------- */

.footer-bottom {
    position: relative;
    z-index: 4;

    border-top: 1px solid rgba(255,255,255,.15);
}

.footer-bottom-inner {
    min-height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 20px;
}

.copyright {
    color: rgba(255,255,255,.70);

    font-size: 14px;
}

.footer-record {
    display: flex;
    align-items: center;

    gap: 12px;

    color: rgba(255,255,255,.60);

    font-size: 14px;
}

.footer-separator {
    width: 1px;
    height: 14px;

    background: rgba(255,255,255,.28);
}


/* =========================================================
   20. BACK TO TOP
   ========================================================= */

.back-top {
    position: fixed;

    right: 28px;
    bottom: 28px;

    z-index: 3000;

    width: 44px;
    height: 44px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

    background: var(--primary);

    border-radius: 50%;

    box-shadow:
        0 8px 25px rgba(8,120,232,.25);

    opacity: 0;
    visibility: hidden;

    transform: translateY(15px);

    transition: var(--transition);
}

.back-top.show {
    opacity: 1;
    visibility: visible;

    transform: translateY(0);
}

.back-top:hover {
    background: var(--primary-dark);

    transform: translateY(-3px);
}


/* =========================================================
   21. OLD MODULES HIDDEN
   ========================================================= */

/*
   当前首页已经将这些旧模块合并/取消。
   如果 HTML 中仍然存在，不影响页面。
*/

.quick-links,
.stats-section,
.research-section,
.notice-section,
.education-section,
.feature-section {
    display: none !important;
}


/* =========================================================
   22. JS REVEAL ANIMATION
   ========================================================= */

.js-reveal {
    opacity: 0;

    transform: translateY(25px);

    transition:
        opacity .65s ease,
        transform .65s ease;
}

.js-reveal.is-visible {
    opacity: 1;

    transform: translateY(0);
}


/* =========================================================
   23. LOADING
   ========================================================= */

body.page-loaded {
    opacity: 1;
}


/* =========================================================
   24. SELECTION
   ========================================================= */

::selection {
    color: #ffffff;

    background: var(--primary);
}


/* =========================================================
   25. SCROLLBAR
   ========================================================= */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f3f7fa;
}

::-webkit-scrollbar-thumb {
    background: #b9c9d7;

    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}


/* =========================================================
   26. RESPONSIVE 1450
   ========================================================= */

@media (max-width: 1450px) {

    .container {
        width: 95%;
        max-width: 95%;
    }

    .nav-item > a {
        min-width: auto;

        padding-left: 15px;
        padding-right: 15px;
    }

    .nav-item.has-submenu > a {
        padding-right: 28px;
    }

    .hero-copy {
        padding-left: 0;
    }

}

/* =========================================================
   33. REDUCE MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

}


/* =========================================================
   34. PRINT
   ========================================================= */

@media print {

    .top-bar,
    .main-nav,
    .mobile-nav,
    .search-overlay,
    .hero-controls,
    .back-top {
        display: none !important;
    }

    .hero {
        height: auto;
    }

    .hero-slide {
        position: relative;

        opacity: 1;
        visibility: visible;
    }

    .hero-slide:not(.active) {
        display: none;
    }

    .site-footer {
        color: #000000;

        background: #ffffff;
    }

}


/* =========================================================
   BRAND AREA RIGHT TOOLS
   书记信箱 / 学校主页 / 搜索框
   ========================================================= */

.brand-right {
    display: flex;
    align-items: center;

    margin-left: auto;
}

.brand-tools {
    display: flex;
    flex-direction: column;
    align-items: flex-end;

    gap: 9px;
}


/* =========================================================
   BRAND TOP LINKS
   ========================================================= */

.brand-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    height: 22px;

    gap: 12px;
}

.brand-links a {
    display: inline-flex;
    align-items: center;
    gap: 5px;

    color: #668198;

    font-size: 12px;

    white-space: nowrap;

    transition: all .25s ease;
}

.brand-links a i {
    color: #0878e8;

    font-size: 11px;
}

.brand-links a:hover {
    color: #0878e8;
}

.brand-links-line {
    width: 1px;
    height: 12px;

    background: #d9e5ef;
}


/* =========================================================
   BRAND SEARCH
   ========================================================= */

.brand-search {
    width: 310px;
    height: 38px;

    display: flex;
    align-items: center;

    overflow: hidden;

    border: 1px solid #dbe7f1;

    border-radius: 5px;

    background: #ffffff;

    transition:
        border-color .25s ease,
        box-shadow .25s ease;
}

.brand-search:focus-within {
    border-color: #0878e8;

    box-shadow:
        0 0 0 3px rgba(8,120,232,.08);
}

.brand-search input {
    flex: 1;

    min-width: 0;

    width: 100%;
    height: 100%;

    padding: 0 13px;

    color: #304b63;

    background: transparent;

    font-size: 12px;
}

.brand-search input::placeholder {
    color: #9aabba;
}

.brand-search button,.brand-search input[type="submit"] {
    flex: 0 0 44px;

    width: 44px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #ffffff;

    background: #0878e8;

    transition: all .25s ease;
}
.brand-search input[type="submit"]::after{
    content: "\f002"; /* fa‑magnifying‑glass 图标编码 */
    font-family: "Font Awesome 6 Free";
    font-weight:900;
    font-size:13px;
    color:#fff;
}

.brand-search button:hover,
.brand-search input[type="submit"]:hover {
    background: #0567cc;
}

.brand-search button i {
    font-size: 13px;
}


/* =========================================================
   REMOVE NAV SEARCH
   ========================================================= */

.nav-search {
    display: none !important;
}