/* IUCA 前台卡片系统
 * 仅由前台页面加载，避免影响 admin/ 后台界面。
 */

:root {
    --primary-color: #0071e3;
    --secondary-color: #34c759;
    --accent-color: #ffb000;
    --danger-color: #ff3b30;
    --text-color: #1d1d1f;
    --text-secondary: #6e6e73;
    --front-surface: rgba(255, 255, 255, 0.17);
    --front-surface-strong: rgba(255, 255, 255, 0.38);
    --front-surface-soft: rgba(239, 246, 255, 0.14);
    --front-surface-border: rgba(255, 255, 255, 0.58);
    --front-inner-border: rgba(255, 255, 255, 0.42);
    --front-card-shadow: 0 18px 48px rgba(40, 67, 112, 0.15),
                         0 3px 10px rgba(29, 29, 31, 0.07),
                         inset 0 1px 0 rgba(255, 255, 255, 0.68);
    --front-card-shadow-hover: 0 22px 52px rgba(40, 67, 112, 0.19),
                               0 5px 14px rgba(29, 29, 31, 0.08),
                               inset 0 1px 0 rgba(255, 255, 255, 0.74);
    --front-radius-xl: 20px;
    --front-radius-lg: 16px;
    --front-radius-md: 12px;
    --front-accent: #0071e3;
    --front-accent-hover: #0064c8;
}

/* 页面主体与标题 */
body > .container {
    width: 100%;
    align-self: center;
}

.container > h1,
.container > .title,
.container > .header > h1,
.container.glass-card > h1 {
    margin-top: 0;
    margin-bottom: 22px;
    color: #161617;
    font-size: clamp(1.9rem, 3.4vw, 2.4rem);
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -0.035em;
    text-wrap: balance;
}

.container > h1:not(.home-search-title),
.container > .title,
.container > .header > h1 {
    padding-left: 0;
    border-left: 0;
    text-shadow: 0 1px 12px rgba(255, 255, 255, 0.7);
}

/* 所有前台主要卡片使用同一表面语言 */
:is(
    .card,
    .glass-card,
    .search-form,
    .info-card,
    .form-container,
    .step-container,
    .query-container,
    .result-container,
    .idc-info-card,
    .endpoint-section,
    .guide-section,
    .search-section,
    .policy-content,
    .contact-group,
    .reason-group,
    .auth-form,
    .info-box,
    .idc-card,
    .details-panel,
    .front-page-card,
    .glassmorphism-dark,
    .modal-content
) {
    background:
        linear-gradient(135deg, var(--front-surface-strong) 0%, var(--front-surface) 52%, rgba(218, 231, 255, 0.13) 100%) !important;
    border: 1px solid var(--front-surface-border) !important;
    border-radius: var(--front-radius-xl) !important;
    box-shadow: var(--front-card-shadow) !important;
    backdrop-filter: blur(30px) saturate(165%) !important;
    -webkit-backdrop-filter: blur(30px) saturate(165%) !important;
    color: var(--text-color);
}

:is(
    .card,
    .glass-card,
    .search-form,
    .info-card,
    .form-container,
    .step-container,
    .query-container,
    .guide-section,
    .search-section,
    .policy-content,
    .auth-form,
    .idc-card,
    .details-panel,
    .front-page-card,
    .glassmorphism-dark
) {
    padding: clamp(20px, 2.5vw, 30px);
    margin-bottom: 22px;
}

:is(.result-container, .idc-info-card, .endpoint-section, .contact-group, .reason-group, .info-box) {
    padding: clamp(16px, 2vw, 22px);
    margin-bottom: 16px;
}

/* 大卡片不再在悬停时跳动，避免表单输入时界面漂移 */
:is(.card, .glass-card, .search-form, .info-card, .form-container, .step-container, .query-container, .guide-section, .search-section, .policy-content, .auth-form, .idc-card, .details-panel, .front-page-card, .glassmorphism-dark):hover {
    transform: none !important;
    box-shadow: var(--front-card-shadow) !important;
}

.glass-card::before,
.search-form::before,
.info-card::before {
    display: none !important;
}

/* 嵌套卡片降低层级，避免“卡片套卡片”显得厚重 */
:is(.glass-card, .card, .form-container) :is(.glass-card, .card, .info-card, .endpoint-section),
.container.glass-card > :is(.glass-card, .info-box, .auth-form) {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.28), var(--front-surface-soft)) !important;
    border-color: var(--front-inner-border) !important;
    border-radius: var(--front-radius-lg) !important;
    box-shadow: 0 8px 22px rgba(31, 38, 135, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.5) !important;
}

/* 结果卡片和列表卡片保留轻微交互反馈 */
.result-item {
    padding: 18px 20px;
    margin-bottom: 14px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.34), rgba(237, 245, 255, 0.16)) !important;
    border: 1px solid rgba(255, 255, 255, 0.5) !important;
    border-left: 1px solid rgba(255, 255, 255, 0.5) !important;
    border-radius: var(--front-radius-lg) !important;
    box-shadow: 0 9px 26px rgba(31, 38, 135, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.55) !important;
    backdrop-filter: blur(26px) saturate(155%) !important;
    -webkit-backdrop-filter: blur(26px) saturate(155%) !important;
}

.announcements-list .card,
.idc-list .idc-card {
    border-left: 1px solid rgba(255, 255, 255, 0.58) !important;
}

.result-item:hover,
.announcements-list .card:hover,
.idc-list .idc-card:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--front-card-shadow-hover) !important;
}

/* 卡片内部标题和分区 */
:is(.card, .glass-card, .form-container, .step-container, .query-container, .guide-section, .policy-content, .idc-card, .details-panel, .front-page-card, .glassmorphism-dark) h2 {
    color: #1d1d1f;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

:is(.card, .glass-card, .form-container, .step-container, .query-container, .guide-section, .idc-card, .details-panel, .front-page-card, .glassmorphism-dark) > h2:first-child {
    margin-top: 0;
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--front-inner-border);
}

.card-title,
.result-title {
    color: #1d1d1f !important;
    font-weight: 650;
    letter-spacing: -0.015em;
}

.card-meta,
.form-text,
.text-muted,
small {
    color: #6e6e73 !important;
}

/* 表单控件 */
:is(
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="number"],
    input[type="url"],
    input[type="tel"],
    select,
    textarea,
    .form-input,
    .form-select,
    .form-textarea,
    .form-control
) {
    min-height: 48px;
    padding: 12px 14px;
    color: #1d1d1f !important;
    background: rgba(255, 255, 255, 0.42) !important;
    border: 1px solid rgba(255, 255, 255, 0.56) !important;
    border-radius: var(--front-radius-md) !important;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.58), 0 2px 8px rgba(31, 38, 135, 0.05);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

textarea,
.form-textarea {
    min-height: 120px;
    resize: vertical;
}

:is(
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="number"],
    input[type="url"],
    input[type="tel"],
    select,
    textarea,
    .form-input,
    .form-select,
    .form-textarea,
    .form-control
):focus {
    outline: none;
    background: rgba(255, 255, 255, 0.7) !important;
    border-color: rgba(0, 113, 227, 0.72) !important;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.13) !important;
}

.form-group,
.mb-3 {
    margin-bottom: 20px;
}

label,
.form-label {
    margin-bottom: 8px;
    color: #2c2c2e !important;
    font-weight: 600 !important;
}

/* 按钮 */
:is(.btn, .form-button, .select-btn, .usage-btn) {
    min-height: 44px;
    padding: 10px 20px;
    border: 1px solid transparent !important;
    border-radius: 12px !important;
    background: var(--front-accent) !important;
    color: #fff !important;
    font-size: 15px;
    font-weight: 620;
    line-height: 1.2;
    text-decoration: none;
    box-shadow: 0 7px 18px rgba(0, 113, 227, 0.22) !important;
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

:is(.btn, .form-button, .select-btn, .usage-btn):hover {
    background: var(--front-accent-hover) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 10px 22px rgba(0, 113, 227, 0.28) !important;
}

.btn-secondary {
    color: #3a3a3c !important;
    background: rgba(255, 255, 255, 0.38) !important;
    border-color: rgba(255, 255, 255, 0.56) !important;
    box-shadow: 0 5px 14px rgba(29, 29, 31, 0.08) !important;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.58) !important;
}

.btn-success {
    background: #248a3d !important;
    box-shadow: 0 7px 18px rgba(36, 138, 61, 0.2) !important;
}

.btn-warning {
    background: #b76e00 !important;
    box-shadow: 0 7px 18px rgba(183, 110, 0, 0.2) !important;
}

.btn-danger {
    background: #d70015 !important;
    box-shadow: 0 7px 18px rgba(215, 0, 21, 0.2) !important;
}

.btn::before {
    display: none !important;
}

/* 提示与状态卡片 */
.alert,
.error-message,
.success-message,
.error,
.success {
    padding: 16px 18px;
    margin-bottom: 20px;
    border: 1px solid var(--front-inner-border) !important;
    border-left-width: 4px !important;
    border-radius: var(--front-radius-md) !important;
    box-shadow: 0 7px 20px rgba(29, 29, 31, 0.06) !important;
    backdrop-filter: blur(18px) saturate(130%);
    -webkit-backdrop-filter: blur(18px) saturate(130%);
}

:is(.alert-success, .success-message, .success) {
    color: #176b2c !important;
    background: rgba(232, 248, 236, 0.92) !important;
    border-left-color: #34c759 !important;
}

:is(.alert-error, .alert-danger, .error-message, .error) {
    color: #a11a1f !important;
    background: rgba(255, 237, 238, 0.94) !important;
    border-left-color: #ff3b30 !important;
}

.alert-warning {
    color: #7a5200 !important;
    background: rgba(255, 248, 224, 0.94) !important;
    border-left-color: #ffb000 !important;
}

.alert-info {
    color: #0057a8 !important;
    background: rgba(232, 244, 255, 0.94) !important;
    border-left-color: #0071e3 !important;
}

/* 表格与长内容区域 */
.table,
.idc-table,
.param-table {
    width: 100%;
    background: rgba(255, 255, 255, 0.24) !important;
    border: 1px solid rgba(255, 255, 255, 0.46) !important;
    border-radius: var(--front-radius-lg) !important;
    border-collapse: separate !important;
    border-spacing: 0;
    overflow: hidden;
}

:is(.table, .idc-table, .param-table) th {
    color: #3a3a3c !important;
    background: rgba(241, 246, 255, 0.36) !important;
    font-weight: 650;
}

:is(.table, .idc-table, .param-table) th,
:is(.table, .idc-table, .param-table) td {
    padding: 14px 16px;
    border-color: var(--front-inner-border) !important;
}

.policy-content {
    max-width: 980px;
    margin-inline: auto;
}

.code-block,
pre {
    background: #f4f6fa !important;
    border: 1px solid var(--front-inner-border);
    border-radius: var(--front-radius-md) !important;
}

/* 首页上一轮专用样式融入统一卡片系统 */
.home-search-card {
    max-width: 720px;
    margin-inline: auto;
    padding: 26px 28px !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(242, 247, 255, 0.16)) !important;
    border-radius: var(--front-radius-xl) !important;
    box-shadow: var(--front-card-shadow) !important;
}

.home-search-container {
    margin-top: clamp(86px, 9vh, 110px) !important;
}

.home-search-container .search-results {
    margin-top: 14px;
}

.initial-message {
    max-width: 720px;
    margin-inline: auto;
    padding: 11px 18px !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.27), rgba(239, 246, 255, 0.11)) !important;
    border: 1px solid rgba(255, 255, 255, 0.48) !important;
    border-radius: var(--front-radius-md) !important;
    box-shadow: 0 7px 20px rgba(31, 38, 135, 0.07), inset 0 1px 0 rgba(255, 255, 255, 0.48);
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
}

.home-search-title {
    font-size: clamp(2rem, 3.5vw, 2.45rem) !important;
    font-weight: 710 !important;
    letter-spacing: -0.04em !important;
}

.home-search-card .platform-option {
    padding-top: 14px;
}

/* 公告页：折叠搜索栏和列表保持轻盈紧凑 */
.announcement-search-form {
    padding: 0 !important;
    overflow: hidden;
}

.announcement-search-form .search-form-header {
    min-height: 64px;
    padding: 0 22px !important;
}

.announcement-search-form .search-form-content {
    padding: 0 22px 20px !important;
}

.announcements-list .card {
    padding: 20px 24px !important;
    margin-bottom: 16px !important;
    border-radius: var(--front-radius-lg) !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.32), rgba(238, 246, 255, 0.14)) !important;
}

.announcements-list .card-header {
    margin-bottom: 9px;
}

.announcements-list .card-meta {
    gap: 24px;
    color: rgba(44, 44, 46, 0.66) !important;
}

/* 前台导航和页脚延续同一磨砂玻璃语言 */
.navbar {
    background: rgba(248, 251, 255, 0.5) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.58) !important;
    box-shadow: 0 7px 24px rgba(31, 38, 135, 0.07) !important;
    backdrop-filter: blur(28px) saturate(160%) !important;
    -webkit-backdrop-filter: blur(28px) saturate(160%) !important;
}

.copyright {
    padding: 12px 16px !important;
    background: rgba(241, 247, 255, 0.24) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.46) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.34) !important;
    backdrop-filter: blur(24px) saturate(155%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(155%) !important;
}

.copyright p {
    line-height: 1.45;
}

@media (max-width: 768px) {
    body > .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .container > h1,
    .container > .title,
    .container > .header > h1,
    .container.glass-card > h1 {
        margin-bottom: 20px;
        font-size: 1.8rem;
    }

    :is(
        .card,
        .glass-card,
        .search-form,
        .info-card,
        .form-container,
        .step-container,
        .query-container,
        .guide-section,
        .search-section,
        .policy-content,
        .auth-form,
        .idc-card,
        .details-panel,
        .front-page-card,
        .glassmorphism-dark
    ) {
        padding: 18px;
        border-radius: var(--front-radius-lg) !important;
    }

    .result-header,
    .card-header,
    .card-footer,
    .form-actions {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .home-search-card {
        padding: 20px 18px !important;
    }

    .home-search-container {
        margin-top: 76px !important;
    }

    .announcement-search-form .search-form-header {
        min-height: 58px;
        padding: 0 18px !important;
    }

    .announcements-list .card {
        padding: 18px !important;
    }

    .btn-group {
        gap: 8px;
    }

    :is(.btn, .form-button, .select-btn, .usage-btn) {
        max-width: 100%;
    }

    .table,
    .idc-table,
    .param-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

@media (prefers-reduced-motion: reduce) {
    :is(.card, .glass-card, .result-item, .idc-card, .front-page-card, .glassmorphism-dark, .btn, .form-button, .select-btn, .usage-btn) {
        transition: none !important;
        transform: none !important;
    }
}