/**
 * Corporate UI Beautify Layer (zh/en shared)
 * Additive polish on top of corporate*.css — keep brand navy #333570 + amber #e8a317
 */
:root {
    --corp-primary: #2f3168;
    --corp-primary-dark: #23254f;
    --corp-accent: #d4a017;
    --corp-accent-soft: rgba(212, 160, 23, 0.14);
    --corp-surface: #ffffff;
    --corp-bg-soft: #f4f6f9;
    --corp-text: #2c3140;
    --corp-muted: #7a8494;
    --corp-border: #e6eaf0;
    --corp-radius: 6px;
    --corp-radius-lg: 12px;
    --corp-shadow: 0 10px 28px rgba(35, 37, 79, 0.08);
    --corp-shadow-hover: 0 16px 40px rgba(35, 37, 79, 0.14);
    --corp-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

body.body-white {
    color: var(--corp-text);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

/* —— Nav polish —— */
.corp-navbar {
    backdrop-filter: saturate(140%) blur(0);
    transition: background 0.35s var(--corp-ease), box-shadow 0.35s var(--corp-ease);
}

body:not(.corp-home):not(.corp-ir-hero) .corp-navbar,
.corp-navbar.is-scrolled,
body.corp-home .corp-navbar.corp-nav-solid,
body.corp-ir-hero .corp-navbar.corp-nav-solid {
    box-shadow: 0 1px 0 rgba(35, 37, 79, 0.06), 0 8px 24px rgba(35, 37, 79, 0.06);
}

.corp-navbar .navbar-brand img {
    transition: transform 0.35s var(--corp-ease);
}

.corp-navbar .navbar-brand:hover img {
    transform: translateY(-1px);
}

body:not(.corp-home):not(.corp-ir-hero) .corp-navbar .navbar-nav > li > a {
    position: relative;
}

body:not(.corp-home):not(.corp-ir-hero) .corp-navbar .navbar-nav > li > a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 14px;
    width: 0;
    height: 2px;
    background: var(--corp-accent);
    transform: translateX(-50%);
    transition: width 0.3s var(--corp-ease);
}

body:not(.corp-home):not(.corp-ir-hero) .corp-navbar .navbar-nav > li > a:hover::after,
body:not(.corp-home):not(.corp-ir-hero) .corp-navbar .navbar-nav > li.active > a::after {
    width: 42%;
}

.lang-switch a {
    border-radius: 999px;
    padding: 2px 8px;
    transition: color 0.2s, background 0.2s;
}

.lang-switch a.is-active {
    background: var(--corp-accent-soft);
}

body.corp-home .lang-switch a.is-active,
body.corp-ir-hero .lang-switch a.is-active {
    background: rgba(255, 255, 255, 0.16);
}

/* —— Hero caption —— */
body.corp-home .corp-hero .caption-wraper {
    max-width: 560px;
    padding: 28px 32px;
    border-radius: var(--corp-radius-lg);
    background: linear-gradient(135deg, rgba(35, 37, 79, 0.55), rgba(35, 37, 79, 0.25));
    backdrop-filter: blur(6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

body.corp-home .corp-hero .slide_title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

body.corp-home .corp-hero .slide_title::after {
    content: "";
    display: block;
    width: 56px;
    height: 3px;
    margin-top: 14px;
    background: linear-gradient(90deg, var(--corp-accent), transparent);
}

body.corp-home .corp-hero .slide_content {
    font-size: 16px;
    opacity: 0.95;
}

/* —— About section —— */
body.corp-home .corp-ref-about {
    padding-top: 96px;
}

body.corp-home .corp-ref-about-bg {
    background:
        linear-gradient(120deg, rgba(35, 37, 79, 0.78), rgba(47, 49, 104, 0.62)),
        url("../images/beautify/hero-mining-landscape.png") center/cover no-repeat;
    background-attachment: scroll;
}

body.corp-home .corp-ref-about-bg::after {
    background: linear-gradient(180deg, rgba(20, 22, 48, 0.25), rgba(20, 22, 48, 0.45));
}

body.corp-home .corp-ref-about-head .corp-ref-tag {
    letter-spacing: 0.22em;
    font-size: 12px;
    font-weight: 600;
    color: var(--corp-accent);
    opacity: 1;
}

body.corp-home .corp-ref-about-head h2 {
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

body.corp-home .corp-ref-about-img {
    border-radius: var(--corp-radius-lg);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

body.corp-home .corp-ref-about-img img {
    height: 280px;
    transition: transform 0.6s var(--corp-ease);
}

body.corp-home .corp-ref-about-img:hover img {
    transform: scale(1.04);
}

body.corp-home .corp-btn-ref {
    height: 48px;
    line-height: 48px;
    padding: 0 30px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--corp-primary) 0%, #3d4080 100%);
    box-shadow: 0 8px 20px rgba(47, 49, 104, 0.28);
    letter-spacing: 0.04em;
    transition: transform 0.25s var(--corp-ease), box-shadow 0.25s, background 0.25s;
}

body.corp-home .corp-btn-ref:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(47, 49, 104, 0.35);
    background: linear-gradient(135deg, #3a3d78 0%, var(--corp-primary-dark) 100%);
}

body.corp-home .corp-btn-ref-outline {
    background: #fff;
    box-shadow: none;
    border: 1px solid var(--corp-primary);
    color: var(--corp-primary) !important;
}

body.corp-home .corp-btn-ref-outline:hover {
    background: var(--corp-primary);
    color: #fff !important;
    box-shadow: 0 10px 24px rgba(47, 49, 104, 0.22);
}

/* —— Business cards —— */
body.corp-home .corp-ref-cards {
    border-radius: var(--corp-radius-lg);
    overflow: hidden;
    box-shadow: var(--corp-shadow);
}

body.corp-home .corp-ref-card {
    border-right-color: var(--corp-border);
    background: #fff;
    transition: background 0.35s var(--corp-ease), transform 0.35s var(--corp-ease);
}

body.corp-home .corp-ref-card:hover {
    background: #fbfbfd;
    z-index: 1;
}

body.corp-home .corp-ref-card-thumb {
    height: 200px;
    background:
        linear-gradient(145deg, rgba(47, 49, 104, 0.88), rgba(35, 37, 79, 0.72)),
        url("../images/beautify/icons-business-quad.png") center/cover no-repeat;
}

body.corp-home .corp-ref-card:nth-child(1) .corp-ref-card-thumb {
    background:
        linear-gradient(145deg, rgba(47, 49, 104, 0.82), rgba(35, 37, 79, 0.55)),
        url("../images/beautify/icon-mine.svg") center 42%/88px no-repeat,
        linear-gradient(135deg, #4a5278, #2f3168);
}

body.corp-home .corp-ref-card:nth-child(2) .corp-ref-card-thumb {
    background:
        linear-gradient(145deg, rgba(47, 49, 104, 0.82), rgba(35, 37, 79, 0.55)),
        url("../images/beautify/icon-reserve.svg") center 42%/88px no-repeat,
        linear-gradient(135deg, #55608a, #2f3168);
}

body.corp-home .corp-ref-card:nth-child(3) .corp-ref-card-thumb {
    background:
        linear-gradient(145deg, rgba(47, 49, 104, 0.82), rgba(35, 37, 79, 0.55)),
        url("../images/beautify/icon-globe.svg") center 42%/88px no-repeat,
        linear-gradient(135deg, #4e6a8a, #2f3168);
}

body.corp-home .corp-ref-card:nth-child(4) .corp-ref-card-thumb {
    background:
        linear-gradient(145deg, rgba(47, 49, 104, 0.82), rgba(35, 37, 79, 0.55)),
        url("../images/beautify/icon-chart.svg") center 42%/88px no-repeat,
        linear-gradient(135deg, #5a5080, #2f3168);
}

body.corp-home .corp-ref-card-thumb i {
    display: none;
}

body.corp-home .corp-ref-card-line {
    width: 40px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--corp-accent), var(--corp-primary));
}

body.corp-home .corp-ref-card h3 {
    font-size: 15px;
    letter-spacing: 0.02em;
}

body.corp-home .corp-ref-card-overlay {
    background: linear-gradient(180deg, rgba(35, 37, 79, 0.96), rgba(47, 49, 104, 0.94));
    font-size: 13px;
    line-height: 1.75;
    padding: 24px 22px;
}

/* —— Stats —— */
body.corp-home .corp-ref-stats {
    background: linear-gradient(180deg, #fff 0%, var(--corp-bg-soft) 100%);
    padding: 56px 0;
    border-top: none;
}

body.corp-home .corp-ref-stat {
    position: relative;
    padding: 28px 20px;
    border-right: 1px solid var(--corp-border);
}

body.corp-home .corp-ref-stat-num {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--corp-primary), #5a5f9e);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.02em;
}

body.corp-home .corp-ref-stat-label {
    margin-top: 10px;
    font-size: 13px;
    letter-spacing: 0.04em;
    color: var(--corp-muted);
}

body.corp-home .corp-ref-stat::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 8px;
    width: 28px;
    height: 3px;
    margin-left: -14px;
    border-radius: 2px;
    background: var(--corp-accent);
    opacity: 0.85;
}

/* —— News —— */
body.corp-home .corp-ref-news {
    background:
        radial-gradient(ellipse at top, rgba(212, 160, 23, 0.06), transparent 55%),
        var(--corp-bg-soft);
    padding: 80px 0 70px;
}

body.corp-home .corp-ref-section-title h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--corp-text);
    position: relative;
    display: inline-block;
    padding-bottom: 14px;
}

body.corp-home .corp-ref-section-title h2::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 48px;
    height: 3px;
    margin-left: -24px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--corp-accent), var(--corp-primary));
}

body.corp-home .corp-ref-news-item {
    border-radius: var(--corp-radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 0 rgba(35, 37, 79, 0.02);
    transition: transform 0.35s var(--corp-ease), box-shadow 0.35s var(--corp-ease);
}

body.corp-home .corp-ref-news-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--corp-shadow-hover);
}

body.corp-home .corp-ref-news-thumb {
    height: 220px;
}

body.corp-home .corp-ref-news-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(35, 37, 79, 0.35));
    opacity: 0;
    transition: opacity 0.35s;
    pointer-events: none;
}

body.corp-home .corp-ref-news-item:hover .corp-ref-news-thumb::after {
    opacity: 1;
}

body.corp-home .corp-ref-news-body {
    padding: 20px 22px 24px;
}

body.corp-home .corp-ref-news-body .date {
    display: inline-block;
    padding: 2px 10px;
    margin-bottom: 10px;
    border-radius: 999px;
    background: var(--corp-accent-soft);
    color: #9a7510;
    font-weight: 600;
    letter-spacing: 0.02em;
}

body.corp-home .corp-ref-news-empty {
    border-radius: var(--corp-radius-lg);
    border: 1px dashed var(--corp-border);
    background: #fff;
}

/* —— IR links —— */
body.corp-home .corp-ref-ir {
    padding: 72px 0 80px;
    background: #fff;
}

body.corp-home .corp-ref-ir-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}

body.corp-home .corp-ref-ir-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 180px;
    justify-content: center;
    padding: 16px 22px;
    border-radius: var(--corp-radius);
    border: 1px solid var(--corp-border);
    background: #fff;
    color: var(--corp-text) !important;
    text-decoration: none !important;
    box-shadow: 0 2px 8px rgba(35, 37, 79, 0.04);
    transition: transform 0.25s var(--corp-ease), border-color 0.25s, box-shadow 0.25s, color 0.25s;
}

body.corp-home .corp-ref-ir-link i {
    color: var(--corp-primary);
    transition: color 0.25s;
}

body.corp-home .corp-ref-ir-link:hover {
    transform: translateY(-3px);
    border-color: rgba(47, 49, 104, 0.35);
    box-shadow: var(--corp-shadow);
    color: var(--corp-primary) !important;
}

body.corp-home .corp-ref-ir-link:hover i {
    color: var(--corp-accent);
}

/* —— Inner pages —— */
.corp-page-banner {
    background:
        linear-gradient(135deg, rgba(47, 49, 104, 0.92), rgba(35, 37, 79, 0.88)),
        url("../images/beautify/hero-aerial-site.png") center/cover no-repeat;
    padding: 56px 0 48px;
}

.corp-page-banner h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.corp-page-banner h1::after {
    content: "";
    display: block;
    width: 44px;
    height: 3px;
    margin: 16px auto 0;
    border-radius: 2px;
    background: var(--corp-accent);
}

.corp-ref-breadcrumb {
    background: #fafbfc;
    border-bottom-color: var(--corp-border);
}

.corp-page-content {
    padding-top: 36px;
    padding-bottom: 56px;
}

.corp-article,
.corp-page-main,
.corp-list-item,
.corp-contact-panel,
.table {
    border-radius: var(--corp-radius);
}

.corp-list-item,
.corp-news-row,
.press-item,
.corp-file-row {
    transition: background 0.2s, box-shadow 0.2s;
}

.corp-list-item:hover,
.corp-news-row:hover,
.press-item:hover {
    background: #fafbfd;
}

/* —— Footer —— */
.corp-footer-hero {
    background-color: #23254f;
    background-image:
        linear-gradient(135deg, rgba(35, 37, 79, 0.88), rgba(30, 32, 62, 0.9)),
        url("../images/beautify/footer-bg-abstract.png");
    background-size: cover;
    background-position: center;
}

.corp-footer-hero-inner {
    padding-top: 64px;
    padding-bottom: 52px;
}

.corp-footer-form .form-control,
.corp-footer-form input,
.corp-footer-form textarea {
    border-radius: 4px !important;
    border-color: rgba(255, 255, 255, 0.18) !important;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.corp-footer-form .form-control:focus,
.corp-footer-form input:focus,
.corp-footer-form textarea:focus {
    border-color: var(--corp-accent) !important;
    box-shadow: 0 0 0 3px rgba(212, 160, 23, 0.2);
}

.corp-footer-form button,
.corp-footer-form .btn {
    border-radius: 2px !important;
    background: linear-gradient(135deg, var(--corp-accent), #b8860b) !important;
    border: none !important;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: transform 0.2s, box-shadow 0.2s;
}

.corp-footer-form button:hover,
.corp-footer-form .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(184, 134, 11, 0.35);
}

.corp-footer-bar {
    background: #1a1c3a !important;
}

/* —— Back to top —— */
#backtotop {
    width: 44px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    font-size: 22px !important;
    border-radius: 50%;
    background: var(--corp-primary);
    color: #fff !important;
    box-shadow: 0 8px 20px rgba(47, 49, 104, 0.3);
    transition: transform 0.2s, background 0.2s;
}

#backtotop:hover {
    background: var(--corp-accent) !important;
    color: #fff !important;
    transform: translateY(-3px);
}

/* —— Auth / profile soft polish（联系信息区单独在 corporate-contact.css 处理） —— */
.user-auth-card,
.corp-profile-panel {
    border-radius: var(--corp-radius-lg);
    box-shadow: var(--corp-shadow);
}

/* —— Motion —— */
@media (prefers-reduced-motion: no-preference) {
    .corp-animate[data-animate="fade-right"],
    .corp-animate[data-animate="fade-left"],
    .corp-animate {
        will-change: transform, opacity;
    }
}

body.corp-home .corp-navbar.corp-nav-solid,
body.corp-ir-hero .corp-navbar.corp-nav-solid {
    background: rgba(35, 37, 79, 0.94) !important;
    box-shadow: 0 8px 24px rgba(35, 37, 79, 0.18);
}

body.corp-home .corp-navbar.corp-nav-solid::before,
body.corp-ir-hero .corp-navbar.corp-nav-solid::before {
    opacity: 0;
}

/* —— Responsive —— */
@media (max-width: 991px) {
    body.corp-home .corp-hero .slide_title {
        font-size: 28px;
    }

    body.corp-home .corp-hero .caption-wraper {
        left: 5%;
        right: 5%;
        max-width: none;
        padding: 20px 22px;
    }

    body.corp-home .corp-ref-card-thumb {
        height: 160px;
    }
}

@media (max-width: 767px) {
    body.corp-home .corp-ref-about-head h2,
    body.corp-home .corp-ref-section-title h2 {
        font-size: 26px;
    }

    body.corp-home .corp-ref-stat-num {
        font-size: 34px;
    }

    body.corp-home .corp-ref-ir-link {
        width: 100%;
    }

    .corp-page-banner h1 {
        font-size: 24px;
    }
}