/**
 * YUNNUO — 全局基础样式
 * 参考萌备风格：全屏背景 + 居中毛玻璃容器 + 政务感蓝白配色
 * 有层次但不花哨，干净但不简陋
 */

/* ── 设计变量 ─────────────────────────────────── */

:root {
    /* 蓝色系 */
    --blue-50:  #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;

    /* 中性色 */
    --slate-50:  #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;

    /* 功能色 */
    --red-500:    #ef4444;
    --red-50:     #fef2f2;
    --green-500:  #22c55e;
    --green-50:   #f0fdf4;
    --amber-500:  #f59e0b;
    --amber-50:   #fffbeb;

    /* 语义变量 */
    --yunnuo-primary:       var(--blue-600);
    --yunnuo-primary-hover: var(--blue-700);
    --yunnuo-primary-soft:  var(--blue-50);
    --yunnuo-primary-line:  var(--blue-200);

    --yunnuo-bg:       #fff;
    --yunnuo-page-bg:  var(--slate-50);
    --yunnuo-border:   var(--slate-200);
    --yunnuo-text:     var(--slate-800);
    --yunnuo-text-2:   var(--slate-500);
    --yunnuo-text-3:   var(--slate-400);

    --yunnuo-radius:    10px;
    --yunnuo-radius-lg: 16px;
    --yunnuo-shadow-sm: 0 1px 3px rgba(0,0,0,.04);
    --yunnuo-shadow:    0 2px 8px rgba(0,0,0,.06);
    --yunnuo-shadow-md: 0 8px 24px rgba(0,0,0,.08);
    --yunnuo-shadow-lg: 0 16px 48px rgba(0,0,0,.12);

    --yunnuo-max-w:   780px;
    --yunnuo-nav-h:   56px;
}

/* ── Reset ────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--yunnuo-text);
    /* 淡蓝灰色底 + 微妙渐变质感 */
    background: linear-gradient(135deg, #e0ecff 0%, #eef2f7 40%, #f5f0ff 100%);
    background-attachment: fixed;
    line-height: 1.65;
    min-height: 100vh;
}

/* 固定全屏背景装饰层 — 柔和蓝色光晕 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 15% 20%, rgba(37,99,235,.07) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 85% 75%, rgba(99,102,241,.05) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 50% 10%, rgba(59,130,246,.04) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

a {
    color: var(--yunnuo-primary);
    text-decoration: none;
    transition: color .15s;
}
a:hover { color: var(--yunnuo-primary-hover); }

img { max-width: 100%; height: auto; display: block; }

input, textarea, select, button { font: inherit; color: inherit; }

::selection {
    background: var(--blue-200);
    color: var(--blue-900);
}

/* ── 背景占位（废弃保留） ────────────────────── */

.yunnuo-bg { display: none; }

/* ── 页面骨架 ─────────────────────────────────── */

.yunnuo-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.yunnuo-main {
    flex: 1;
    padding: 0 16px;
}

/* ── 导航栏 ───────────────────────────────────── */

.yunnuo-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--yunnuo-nav-h);
    background: rgba(255,255,255,.72);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border-bottom: 1px solid rgba(255,255,255,.4);
    box-shadow: 0 1px 4px rgba(0,0,0,.04);
}

.yunnuo-nav-inner {
    max-width: 960px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.yunnuo-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    color: var(--slate-900);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -.01em;
}
.yunnuo-nav-logo:hover { color: var(--yunnuo-primary); text-decoration: none; }
.yunnuo-nav-logo img { height: 28px; width: auto; }

.yunnuo-nav-links {
    display: flex;
    gap: 2px;
}

.yunnuo-nav-link {
    display: inline-flex;
    align-items: center;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--slate-500);
    border-radius: 8px;
    transition: all .18s;
    text-decoration: none;
    position: relative;
}
.yunnuo-nav-link:hover {
    background: rgba(37,99,235,.06);
    color: var(--yunnuo-primary);
    text-decoration: none;
}

/* ── 容器 ─────────────────────────────────────── */

.yunnuo-container {
    max-width: var(--yunnuo-max-w);
    margin: 32px auto;
}

.yunnuo-container--wide {
    max-width: 1080px;
}

/* ── 页面标题 ─────────────────────────────────── */

.yunnuo-page-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 24px;
    line-height: 1.3;
    letter-spacing: -.02em;
}

.yunnuo-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--slate-900);
    text-align: center;
    margin-bottom: 6px;
    line-height: 1.25;
    letter-spacing: -.03em;
}

/* ── 信息展示 ─────────────────────────────────── */

.yunnuo-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.yunnuo-info-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px 0;
    border-bottom: 1px solid var(--slate-100);
    gap: 16px;
}
.yunnuo-info-item:last-child { border-bottom: 0; }

.yunnuo-info-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: .06em;
    white-space: nowrap;
    min-width: 80px;
}

.yunnuo-info-value {
    font-size: 14px;
    color: var(--slate-700);
    text-align: right;
    word-break: break-all;
    font-weight: 500;
}
.yunnuo-info-value a { font-weight: 500; }

/* ── 页脚 ─────────────────────────────────────── */

.yunnuo-footer {
    text-align: center;
    padding: 36px 16px;
    font-size: 12px;
    color: var(--slate-400);
    margin-top: auto;
    letter-spacing: .02em;
}
.yunnuo-footer p {
    opacity: .7;
}
.yunnuo-footer a {
    color: inherit;
    text-decoration: none;
}
.yunnuo-footer a:hover {
    color: inherit;
}

/* ── 按钮 ─────────────────────────────────────── */

.yunnuo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all .2s cubic-bezier(.4,0,.2,1);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}
.yunnuo-btn:hover { text-decoration: none; }
.yunnuo-btn:active { transform: scale(.97); }

.yunnuo-btn-primary {
    background: var(--yunnuo-primary);
    color: #fff;
    border-color: var(--yunnuo-primary);
}
.yunnuo-btn-primary:hover {
    background: var(--yunnuo-primary-hover);
    border-color: var(--yunnuo-primary-hover);
}

.yunnuo-btn-secondary {
    background: #fff;
    color: var(--slate-700);
    border-color: var(--slate-200);
}
.yunnuo-btn-secondary:hover {
    background: var(--slate-50);
    border-color: var(--slate-300);
}

.yunnuo-btn-danger {
    background: var(--red-500);
    color: #fff;
    border-color: var(--red-500);
}
.yunnuo-btn-danger:hover {
    background: #dc2626;
    border-color: #dc2626;
}

.yunnuo-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ── 表单 ─────────────────────────────────────── */

.yunnuo-form { margin-top: 16px; }

.yunnuo-form-group { margin-bottom: 18px; }

.yunnuo-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 6px;
    letter-spacing: .01em;
}

.yunnuo-form-group label .required {
    color: var(--red-500);
}

.yunnuo-form-group input[type="text"],
.yunnuo-form-group input[type="email"],
.yunnuo-form-group input[type="url"],
.yunnuo-form-group textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1.5px solid var(--slate-200);
    border-radius: 10px;
    background: rgba(255,255,255,.8);
    transition: border-color .2s, box-shadow .2s, background .2s;
    outline: none;
}
.yunnuo-form-group input:focus,
.yunnuo-form-group textarea:focus {
    border-color: var(--yunnuo-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
    background: #fff;
}

.yunnuo-form-hint {
    margin-top: 5px;
    font-size: 12px;
    color: var(--slate-400);
}

.yunnuo-captcha-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
}
.yunnuo-captcha-row input { flex: 1; }
.yunnuo-captcha-image {
    width: 120px;
    min-height: 42px;
    background: var(--slate-50);
    border: 1.5px solid var(--slate-200);
    border-radius: 10px;
    cursor: pointer;
    font-size: 12px;
    color: var(--slate-400);
    transition: border-color .2s;
}
.yunnuo-captcha-image:hover { border-color: var(--slate-300); }

.yunnuo-code-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
}
.yunnuo-code-row input { flex: 1; }

/* ── 步骤条 ───────────────────────────────────── */

.yunnuo-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 28px;
    padding: 0 4px;
}

.yunnuo-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

.yunnuo-step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--slate-100);
    color: var(--slate-400);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .25s cubic-bezier(.4,0,.2,1);
    position: relative;
    z-index: 1;
}

.yunnuo-step.active .yunnuo-step-num {
    background: var(--yunnuo-primary);
    color: #fff;
}

.yunnuo-step-label {
    margin-top: 7px;
    font-size: 11px;
    color: var(--slate-400);
    font-weight: 500;
    letter-spacing: .02em;
}
.yunnuo-step.active .yunnuo-step-label {
    color: var(--yunnuo-primary);
    font-weight: 600;
}

/* 步骤连线 */
.yunnuo-step + .yunnuo-step::before {
    content: "";
    position: absolute;
    top: 16px;
    right: 50%;
    width: 100%;
    height: 2px;
    background: var(--slate-200);
    z-index: 0;
}

/* ── 步骤内容切换 ─────────────────────────────── */

.yunnuo-step-content {
    display: none;
    padding-top: 24px;
}
.yunnuo-step-content.active { display: block; }

.yunnuo-step-content h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 16px;
    letter-spacing: -.01em;
}

.yunnuo-step-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    justify-content: flex-end;
}

/* ── 消息提示 ─────────────────────────────────── */

.yunnuo-message {
    margin-top: 16px;
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 10px;
    background: var(--blue-50);
    color: var(--blue-700);
    border: 1px solid var(--blue-200);
}
.yunnuo-message.error {
    background: var(--red-50);
    color: var(--red-500);
    border-color: #fecaca;
}
.yunnuo-message.success {
    background: var(--green-50);
    color: #15803d;
    border-color: #bbf7d0;
}

.yunnuo-warning {
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 10px;
    background: var(--amber-50);
    color: #92400e;
    border: 1px solid #fde68a;
    margin-bottom: 16px;
}

.yunnuo-empty {
    text-align: center;
    padding: 48px 20px;
    color: var(--slate-400);
    font-size: 14px;
}

/* ── 汉堡菜单按钮（仅移动端可见） ─────────────── */

.yunnuo-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: none;
    border: none;
    cursor: pointer;
}
.yunnuo-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--slate-600);
    border-radius: 1px;
    transition: transform .25s, opacity .25s;
}

/* ── 移动端侧边菜单 ───────────────────────────── */

.yunnuo-mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.35);
    z-index: 200;
    opacity: 0;
    transition: opacity .3s;
    pointer-events: none;
}
.yunnuo-mobile-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.yunnuo-mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 260px;
    height: 100%;
    background: #fff;
    z-index: 201;
    transform: translateX(100%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    box-shadow: -4px 0 24px rgba(0,0,0,.1);
    overflow-y: auto;
}
.yunnuo-mobile-menu.is-open {
    transform: translateX(0);
}

.yunnuo-mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--slate-100);
}
.yunnuo-mobile-menu-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--slate-900);
}
.yunnuo-mobile-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--slate-400);
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    transition: background .15s, color .15s;
}
.yunnuo-mobile-close:hover {
    background: var(--slate-50);
    color: var(--slate-700);
}

.yunnuo-mobile-links {
    display: flex;
    flex-direction: column;
}
.yunnuo-mobile-links a {
    display: block;
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--slate-700);
    text-decoration: none;
    border-bottom: 1px solid var(--slate-50);
    transition: background .15s, color .15s;
}
.yunnuo-mobile-links a:hover {
    background: var(--blue-50);
    color: var(--yunnuo-primary);
    text-decoration: none;
}

/* ── 响应式 ───────────────────────────────────── */

@media (max-width: 768px) {
    /* 汉堡菜单显示 */
    .yunnuo-hamburger { display: flex; }
    .yunnuo-mobile-menu,
    .yunnuo-mobile-overlay { display: block; }

    /* 隐藏桌面导航 */
    .yunnuo-nav-links { display: none; }

    .yunnuo-nav-inner { padding: 0 16px; }

    /* 无边框模式：去掉所有卡片边框和背景 */
    .yunnuo-apply,
    .yunnuo-update,
    .yunnuo-cancel,
    .yunnuo-detail,
    .yunnuo-about,
    .yunnuo-step-content,
    .yunnuo-query-detail {
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border: none;
        box-shadow: none;
        border-radius: 0;
        padding: 24px 0;
    }

    .yunnuo-container { margin: 16px auto; }

    .yunnuo-main { padding: 0 20px; }

    .yunnuo-step-content { padding: 20px 0; }

    .yunnuo-step-label { font-size: 10px; }

    .yunnuo-info-item {
        flex-direction: column;
        gap: 2px;
    }
    .yunnuo-info-value { text-align: left; }

    .yunnuo-home-shell,
    .yunnuo-result-shell {
        padding: 32px 0;
    }
    .yunnuo-home-search .yunnuo-title {
        font-size: 22px;
    }

    .yunnuo-number-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    }

    .yunnuo-query-header h2 {
        font-size: 20px;
    }

    /* 表单也去边框 */
    .yunnuo-form-group input[type="text"],
    .yunnuo-form-group input[type="email"],
    .yunnuo-form-group input[type="url"],
    .yunnuo-form-group textarea {
        background: var(--slate-50);
    }

    /* 404 去边框 */
    .yunnuo-404 {
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border: none;
        box-shadow: none;
        border-radius: 0;
    }

    /* 消息提示去圆角 */
    .yunnuo-message,
    .yunnuo-warning {
        border-radius: 8px;
    }
}