/* ================================================================
   kvmboot — Glass Design System
   Glassmorphism: backdrop-filter blur cards, gradient body, pill btns
   ================================================================ */

/* ==================== Design Tokens ==================== */
:root {
    /* Primary */
    --primary:       #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: rgba(59, 130, 246, 0.10);
    --primary-glow:  rgba(59, 130, 246, 0.28);

    /* Text */
    --text-main:  #1f2937;
    --text-light: #6b7280;
    --text-muted: #9ca3af;

    /* Glass */
    --glass-bg:           rgba(255, 255, 255, 0.65);
    --glass-bg-solid:     rgba(255, 255, 255, 0.92);
    --glass-border:       rgba(255, 255, 255, 0.58);
    --glass-shadow:       0 8px 32px rgba(0, 0, 0, 0.05), inset 0 0 0 1px rgba(255, 255, 255, 0.52);
    --glass-shadow-hover: 0 16px 44px rgba(0, 0, 0, 0.08), inset 0 0 0 1px rgba(255, 255, 255, 0.82);
    --glass-blur:         blur(14px);

    /* Background */
    --bg-gradient: linear-gradient(135deg, #f0f8ff 0%, #e0f2fe 55%, #f5f9ff 100%);

    /* Borders */
    --border-color: rgba(0, 0, 0, 0.07);

    /* Radius */
    --radius-pill: 99px;
    --radius-card: 20px;
    --radius-md:   12px;
    --radius-sm:   8px;

    /* Shadows */
    --shadow-sm:  0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md:  0 8px 24px rgba(0, 0, 0, 0.07);
    --shadow-btn: 0 4px 14px rgba(59, 130, 246, 0.32);

    /* Motion */
    --transition:   all 0.22s cubic-bezier(0.25, 0.8, 0.25, 1);
    --ease-spring:  cubic-bezier(0.34, 1.35, 0.64, 1);
    --ease-smooth:  cubic-bezier(0.22, 1, 0.36, 1);
    --dur-fast: 0.18s;
    --dur-med:  0.35s;
    --dur-slow: 0.55s;

    /* Legacy compat — keeps old pages working */
    --ink:           #1f2937;
    --ink-light:     #6b7280;
    --paper:         #ffffff;
    --border-width:  1px;
    --shadow-sketch: var(--glass-shadow);
    --marker-yellow: rgba(245, 158,  11, 0.14);
    --marker-blue:   rgba( 59, 130, 246, 0.14);
    --marker-pink:   rgba(236,  72, 153, 0.14);
    --marker-green:  rgba( 16, 185, 129, 0.14);
    --sketch-radius-1: var(--radius-card);
    --sketch-radius-2: var(--radius-card);
    --sketch-radius-3: var(--radius-card);
}

/* ==================== Reset & Base ==================== */

* {
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
                 "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    -webkit-font-smoothing: antialiased;
}

html {
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg-gradient);
    background-attachment: scroll;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 内容区图片/视频不撑破窄屏 */
img,
video,
iframe,
embed,
object {
    max-width: 100%;
    height: auto;
}
iframe {
    border: 0;
}

@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* 滚动性能降级：低端设备/小屏/减少动效时，减少大面积毛玻璃与重阴影重绘 */
html.perf-lite {
    --glass-blur: blur(6px);
    --glass-shadow: 0 4px 14px rgba(0, 0, 0, 0.04), inset 0 0 0 1px rgba(255,255,255,0.45);
    --glass-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.06), inset 0 0 0 1px rgba(255,255,255,0.62);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
}
html.perf-lite *,
html.perf-lite *::before,
html.perf-lite *::after {
    animation-duration: 0.001ms !important;
}
html.perf-lite #site-nav > nav,
html.perf-lite .glass-card,
html.perf-lite .sketch-box,
html.perf-lite .lang-menu,
html.perf-lite .nav-user-dropdown,
html.perf-lite .auth-modal-panel,
html.perf-lite footer {
    backdrop-filter: blur(6px) !important;
    -webkit-backdrop-filter: blur(6px) !important;
}
html.perf-lite #site-nav > nav::before,
html.perf-lite #site-nav > nav::after {
    display: none;
}
html.perf-lite #site-nav > nav {
    box-shadow: 0 6px 18px rgba(15,27,50,0.08), inset 0 1px 0 rgba(255,255,255,0.85) !important;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.lucide { stroke-width: 2px; stroke: currentColor; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== Layout ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: max(24px, env(safe-area-inset-left, 0px));
    padding-right: max(24px, env(safe-area-inset-right, 0px));
}

@media (max-width: 900px) {
    .container {
        padding-left: max(28px, env(safe-area-inset-left, 0px));
        padding-right: max(28px, env(safe-area-inset-right, 0px));
    }
}

@media (max-width: 640px) {
    .container {
        padding-left: max(36px, env(safe-area-inset-left, 0px));
        padding-right: max(36px, env(safe-area-inset-right, 0px));
    }
}

#site-nav .container {
    width: 100%;
    padding: 0;
    box-sizing: border-box;
}

/* ==================== Fade-in ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { .fade-in { transition-duration: 0.01ms; transform: none; } }

/* ==================== Navigation ==================== */
/* #site-nav 作固定定位容器，nav 元素本身是胶囊 */
#site-nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    padding:
        max(14px, env(safe-area-inset-top, 0px))
        max(20px, env(safe-area-inset-right, 0px))
        0
        max(20px, env(safe-area-inset-left, 0px));
    display: flex; justify-content: center; align-items: flex-start;
    pointer-events: none;            /* 透明区域不拦截点击 */
    transform: translate3d(0, 0, 0);
    transition:
        transform 0.42s cubic-bezier(0.22, 1, 0.36, 1),
        opacity   0.32s ease,
        padding   0.42s cubic-bezier(0.22, 1, 0.36, 1);
    contain: layout style;
    will-change: transform;
}
/* 向下滚动时缓缓隐藏 */
#site-nav.is-hidden {
    transform: translate3d(0, -120%, 0);
    opacity: 0;
    pointer-events: none;
}
#site-nav.is-scrolled {
    padding:
        max(8px, env(safe-area-inset-top, 0px))
        max(20px, env(safe-area-inset-right, 0px))
        0
        max(20px, env(safe-area-inset-left, 0px));
}
@media (prefers-reduced-motion: reduce) {
    #site-nav, #site-nav.is-hidden {
        transition: none !important;
    }
}

#site-nav > nav {
    pointer-events: all;             /* 胶囊本体可点击 */
    position: relative;              /* 由 #site-nav 负责 fixed 定位 */
    /* 略加宽：德语/俄语等长词导航 + 右侧登录按钮并排时不易与中间链接抢宽 */
    width: 100%; max-width: min(1180px, calc(100vw - 32px));
    border-radius: 99px;
    padding: 10px 22px;
    min-height: 58px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.82) 0%, rgba(255,255,255,0.56) 52%, rgba(235,247,255,0.50) 100%);
    backdrop-filter: blur(18px) saturate(1.55);
    -webkit-backdrop-filter: blur(18px) saturate(1.55);
    border: 1px solid rgba(255, 255, 255, 0.72);
    box-shadow:
        0 18px 46px rgba(38, 80, 130, 0.13),
        0 4px 14px rgba(15, 27, 50, 0.07),
        inset 0 1px 0 rgba(255,255,255,0.95),
        inset 0 -1px 0 rgba(80,130,180,0.10);
    display: flex; align-items: center; justify-content: center;
    transform: translateZ(0);
    overflow: visible;
    transition:
        padding      0.42s cubic-bezier(0.22, 1, 0.36, 1),
        min-height   0.42s cubic-bezier(0.22, 1, 0.36, 1),
        background   0.32s ease,
        box-shadow   0.32s ease,
        border-color 0.32s ease;
}
#site-nav > nav::before {
    content: '';
    position: absolute;
    inset: 1px 10px auto 10px;
    height: 46%;
    border-radius: 99px 99px 32px 32px;
    background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.08));
    pointer-events: none;
    z-index: 0;
}
#site-nav > nav::after {
    content: '';
    position: absolute;
    left: 16px; right: 16px; bottom: 3px;
    height: 1px;
    border-radius: 99px;
    background: linear-gradient(90deg, transparent, rgba(64,120,190,0.22), transparent);
    pointer-events: none;
    z-index: 0;
}
#site-nav.is-scrolled > nav {
    padding: 7px 20px;
    min-height: 50px;
    width: fit-content;          /* 胶囊收缩至内容宽度 */
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.70) 100%);
    box-shadow:
        0 14px 38px rgba(38,80,130,0.14),
        0 4px 14px rgba(15,27,50,0.08),
        inset 0 1px 0 rgba(255,255,255,1),
        inset 0 -1px 0 rgba(80,130,180,0.10);
}

.nav-inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    column-gap: clamp(14px, 2.2vw, 28px);
    position: relative;
    z-index: 1;
    width: 100%;
}
.nav-inner .logo { flex-shrink: 0; min-width: 0; position: relative; z-index: 2; }
.nav-inner .nav-links {
    flex: none;
    width: 100%;
    max-width: 100%;
    min-width: 0; /* grid 子项默认 min-width:auto，会按内容撑开并与中栏抢宽导致与 logo 叠字 */
    margin: 0;
    box-sizing: border-box;
    justify-content: center/* 回退 */;
    justify-content: safe center;  /* 空间不足时改为起始对齐，避免居中溢出盖住左侧 logo */
    overflow: visible;
}
.nav-right {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    position: relative;
    z-index: 20;
    min-width: max-content;
}

.logo {
    font-size: 21px; font-weight: 700; color: var(--text-main);
    display: flex; align-items: center; gap: 10px; cursor: pointer;
    letter-spacing: -0.02em;
    transition: font-size 0.42s cubic-bezier(0.22, 1, 0.36, 1), gap 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}
.logo-wordmark {
    text-transform: lowercase;
    font-weight: inherit;
    letter-spacing: inherit;
}
#site-nav.is-scrolled .logo { font-size: 18px; gap: 8px; }

.logo-icon {
    width: 36px; height: 36px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.28);
    overflow: hidden;
    transition:
        width    0.42s cubic-bezier(0.22, 1, 0.36, 1),
        height   0.42s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.3s ease,
        box-shadow 0.3s ease;
}
.logo-icon svg,
.logo-icon img { width: 100%; height: 100%; display: block; flex-shrink: 0; }
a.logo:hover .logo-icon { transform: scale(1.06); box-shadow: 0 4px 16px rgba(30,80,200,0.40); }
#site-nav.is-scrolled .logo-icon { width: 30px; height: 30px; }

.nav-links {
    display: flex; flex-wrap: nowrap; column-gap: clamp(8px, 1.4vw, 20px);
    align-items: center;
    justify-content: center;
    justify-content: safe center;
    pointer-events: none;
}
.nav-links > li {
    flex: 0 1 auto;
    min-width: 0;
    overflow: hidden;
    max-width: 260px;   /* 动画起点：有宽度才能平滑过渡到 0；略增以利俄/德等长标签 */
    transition:
        max-width 0.45s cubic-bezier(0.22, 1, 0.36, 1),
        opacity   0.30s ease,
        margin    0.45s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-links a.nav-item { pointer-events: auto; }
.nav-item {
    font-weight: 500; color: var(--text-light); cursor: pointer;
    transition: color 0.2s, font-size 0.42s cubic-bezier(0.22, 1, 0.36, 1), font-weight 0.3s;
    font-size: 15px;
    position: relative; padding: 4px 6px; white-space: nowrap;
    text-shadow: 0 1px 0 rgba(255,255,255,0.55);
    /* 顶栏过长时由 li 限宽，省略号优于与 logo 叠字 */
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}
#site-nav.is-scrolled .nav-item { font-size: 14px; }
.nav-item:hover, .nav-item.active { color: var(--primary); }

/* ── 滚动后折叠逻辑 ──
   所有导航项隐藏，仅保留当前激活项（加粗居中），胶囊宽度自适应收缩 */
#site-nav.is-scrolled .nav-links > li {
    max-width: 0;
    opacity: 0;
    pointer-events: none;
    margin: 0;
}
/* 仅显示当前激活的导航项 */
#site-nav.is-scrolled .nav-links > li:has(.nav-item.active) {
    max-width: 240px;
    opacity: 1;
    pointer-events: all;
}
/* 激活项：加粗、深色，突出当前位置 */
#site-nav.is-scrolled .nav-item.active {
    font-weight: 800;
    font-size: 14px;
    color: var(--text-main);
}
/* 折叠后清除 flex 间距，避免空白残留 */
#site-nav.is-scrolled .nav-links { column-gap: 0; }
/* 语言切换器滚动后隐藏，保持胶囊极简 */
#site-nav.is-scrolled .lang-dropdown { display: none; }
.nav-item.active::after {
    content: ''; position: absolute; bottom: -2px; left: 6px; right: 6px;
    height: 2px; background: var(--primary); border-radius: 99px; pointer-events: none;
}
.nav-item:hover:not(.active)::after {
    content: ''; position: absolute; bottom: -2px; left: 6px; right: 6px;
    height: 2px; background: var(--primary); opacity: 0.3; border-radius: 99px; pointer-events: none;
}

/* Lang dropdown */
.lang-dropdown {
    position: relative;
    z-index: 3000;
    flex: 0 0 auto;
}
.lang-trigger {
    display: inline-flex; align-items: center; gap: 7px;
    justify-content: center;
    padding: 9px 16px;
    min-width: 122px;
    min-height: 38px;
    font-size: 14px; font-weight: 600; color: var(--text-main);
    background: var(--glass-bg); backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius-pill);
    cursor: pointer; transition: var(--transition); box-shadow: var(--shadow-sm);
    line-height: 1;
    flex: 0 0 auto;
}
.lang-trigger:hover {
    background: rgba(255,255,255,0.92);
    box-shadow: 0 4px 14px rgba(0,0,0,0.07);
    border-color: rgba(59,130,246,0.25);
}
.lang-trigger .lucide,
.lang-trigger .lang-globe { width: 17px; height: 17px; flex-shrink: 0; color: var(--primary); }
.lang-dropdown:hover .lang-globe,
.lang-dropdown.open .lang-globe { color: var(--primary-hover); }
/* 当前语种全名：醒目可读 */
.lang-current-label {
    display: inline-block;
    flex: 0 0 auto;
    font-weight: 700;
    font-size: 13.5px;
    letter-spacing: 0.01em;
    color: var(--text-main);
    line-height: 1;
    min-width: 56px;
    text-align: center;
    white-space: nowrap;
}
.lang-current-label:empty { display: none; }
.lang-chevron { width: 14px !important; height: 14px !important; transition: transform 0.2s ease; opacity: 0.7; }
.lang-dropdown.open .lang-chevron { transform: rotate(180deg); }
.lang-modal {
    position: fixed;
    inset: 0;
    z-index: 10020;
    background: transparent;
    pointer-events: auto;
}
.lang-modal[hidden] { display: none !important; }
.lang-modal-panel {
    position: fixed;
    top: 62px;
    right: 68px;
    width: 148px;
    overflow: hidden;
    background: rgba(255,255,255,0.98);
    border: 1px solid rgba(120,170,220,0.24);
    border-radius: 12px;
    box-shadow: 0 16px 36px rgba(15,30,60,0.18), inset 0 1px 0 rgba(255,255,255,0.9);
    pointer-events: auto;
}
.lang-menu {
    display: flex;
    flex-direction: column;
    padding: 6px;
    gap: 2px;
}
.lang-menu a {
    display: flex; align-items: center; justify-content: flex-start;
    min-height: 34px;
    padding: 0 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
    color: var(--text-main);
    background: transparent;
    transition: background 0.16s ease, color 0.16s ease;
}
.lang-menu a:hover,
.lang-menu a[aria-current="true"] {
    color: var(--primary);
    background: var(--primary-light);
}

/* Login / nav button */
.btn-nav-login {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 20px;
    font-size: 14px; font-weight: 700; color: #fff;
    background: var(--primary); border: none; border-radius: var(--radius-pill);
    cursor: pointer; flex-shrink: 0; white-space: nowrap;
    transition: background 0.22s, box-shadow 0.22s;
    box-shadow: var(--shadow-btn); white-space: nowrap; font-family: inherit;
    flex-shrink: 0;
}
.btn-nav-login:hover { background: var(--primary-hover); box-shadow: 0 6px 20px rgba(59,130,246,0.42); }
.btn-nav-login:active { transform: translateY(1px); }
#site-nav.is-scrolled .btn-nav-login { padding: 8px 18px; }
#nav-login-btn[hidden], .btn-nav-login[hidden] { display: none !important; }

/* User area */
.nav-user-area { position: relative; flex-shrink: 0; }
.nav-user-area[hidden] { display: none !important; }
.nav-user-dropdown-wrap { position: relative; }
.nav-user-trigger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; padding: 0; margin: 0; flex-shrink: 0;
    border-radius: 50%; border: 1.5px solid var(--glass-border);
    background: var(--glass-bg); backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-sm); transition: var(--transition);
    color: var(--text-main); cursor: pointer; font: inherit;
}
a.nav-user-trigger { text-decoration: none; color: inherit; }
.nav-user-trigger:hover { border-color: rgba(59,130,246,0.35); box-shadow: 0 2px 12px rgba(59,130,246,0.18); }
.nav-user-area.nav-user-on-account .nav-user-trigger { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.nav-avatar-circle { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; pointer-events: none; }
.nav-avatar-letter { font-size: 16px; font-weight: 800; line-height: 1; }
.nav-user-dropdown {
    position: absolute; top: calc(100% + 8px); left: 50%; right: auto;
    min-width: 200px; margin: 0; padding: 12px 6px 6px; list-style: none;
    background: rgba(255,255,255,0.96); backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius-card);
    box-shadow: var(--shadow-md); z-index: 1002;
    opacity: 0; visibility: hidden; transform: translate(-50%, -8px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.nav-user-dropdown::before { content: ''; position: absolute; left: 50%; transform: translateX(-50%); width: 44px; right: auto; bottom: 100%; height: 12px; }
.nav-user-dropdown::after {
    content: ''; position: absolute; left: 50%; bottom: 100%; width: 10px; height: 10px;
    margin-bottom: -4px; transform: translateX(-50%) translateY(50%) rotate(45deg);
    background: #fff; border-left: 1px solid var(--glass-border); border-top: 1px solid var(--glass-border);
    box-sizing: border-box; z-index: 1; pointer-events: none;
}
.nav-user-dropdown-wrap:hover .nav-user-dropdown,
.nav-user-dropdown-wrap:focus-within .nav-user-dropdown,
.nav-user-dropdown-wrap.is-open .nav-user-dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
@media (max-width: 480px) {
    .nav-user-dropdown { left: auto; right: 0; transform: translate(0, -8px); max-width: min(200px, calc(100vw - 24px)); }
    .nav-user-dropdown-wrap:hover .nav-user-dropdown,
    .nav-user-dropdown-wrap:focus-within .nav-user-dropdown,
    .nav-user-dropdown-wrap.is-open .nav-user-dropdown { transform: translate(0, 0); }
    .nav-user-dropdown::before { left: auto; right: 8px; transform: none; width: 44px; }
    .nav-user-dropdown::after { left: auto; right: 18px; transform: translateY(50%) rotate(45deg); }
}
.nav-user-menu-item {
    display: flex; width: 100%; align-items: center; padding: 9px 12px;
    font-size: 14px; font-weight: 600; color: var(--text-main); text-align: left;
    border: none; border-radius: var(--radius-sm); background: transparent;
    cursor: pointer; font-family: inherit; text-decoration: none; box-sizing: border-box;
    transition: background 0.15s, color 0.15s;
}
a.nav-user-menu-item { color: var(--text-main); }
.nav-user-menu-item:hover { background: var(--primary-light); color: var(--primary); }
.nav-user-menu-quit { color: #dc2626; }
.nav-user-menu-quit:hover { background: #fee2e2; color: #dc2626; }
.nav-user-menu-sep { height: 1px; margin: 5px 6px; background: var(--border-color); list-style: none; padding: 0; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; flex-shrink: 0; }
.hamburger span { width: 24px; height: 2px; background: var(--text-main); border-radius: 99px; transition: var(--transition); }

/* ==================== Auth Modal ==================== */
body.auth-modal-open { overflow: hidden; }

.auth-modal {
    position: fixed; inset: 0; z-index: 2000;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}
.auth-modal.open { opacity: 1; visibility: visible; pointer-events: auto; }

.auth-modal-backdrop {
    position: absolute; inset: 0;
    background: rgba(8, 18, 50, 0.32);
    backdrop-filter: blur(14px) saturate(1.3);
    -webkit-backdrop-filter: blur(14px) saturate(1.3);
}

/* ── Panel ── */
.auth-modal-panel {
    position: relative; width: 100%; max-width: 460px;
    max-height: min(94vh, 720px);
    overflow: hidden; overflow-y: auto;
    display: flex; flex-direction: column;
    background: #fff;
    border: 1px solid rgba(210, 225, 248, 0.80);
    border-radius: 22px;
    box-shadow: 0 28px 72px rgba(8, 18, 50, 0.16), 0 2px 0 rgba(255,255,255,1) inset;
    transform: scale(0.95) translateY(14px);
    transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}
.auth-modal.open .auth-modal-panel { transform: scale(1) translateY(0); }

/* ── Top tab bar ── */
.auth-modal-header {
    position: sticky; top: 0; z-index: 10;
    display: flex; align-items: center; justify-content: center;
    padding: 18px 52px 0 20px;
    background: #fff;
    /* subtle separator appears only when scrolled via box-shadow on body */
}

.auth-top-tabs {
    display: flex; gap: 6px;
    background: rgba(240, 245, 255, 0.90);
    border: 1px solid rgba(210, 225, 248, 0.70);
    border-radius: 999px;
    padding: 4px;
    flex: 1;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    position: relative;
}
.auth-top-tabs::before {
    content: '';
    position: absolute;
    top: 4px; bottom: 4px; left: 4px;
    width: calc(50% - 7px);
    border-radius: 999px;
    background: linear-gradient(135deg, #3a7fff 0%, #1a5fe8 100%);
    box-shadow: 0 3px 12px rgba(26,111,255,0.34);
    transition: transform 0.28s cubic-bezier(0.34, 1.20, 0.64, 1);
    pointer-events: none;
    z-index: 0;
}
.auth-top-tabs[data-active="register"]::before {
    transform: translateX(calc(100% + 6px));
}

.auth-top-tab {
    flex: 1 1 0;
    min-width: 0;
    padding: 9px 12px;
    font-size: 14.5px; font-weight: 700;
    color: rgba(15, 36, 80, 0.45);
    background: transparent; border: none;
    border-radius: 999px; cursor: pointer;
    transition: color 0.22s ease;
    white-space: normal;
    line-height: 1.3;
    overflow-wrap: anywhere;
    word-break: normal;
    text-align: center;
    position: relative; z-index: 1;
}
.auth-top-tab:hover { color: #0d2240; }
.auth-top-tab.active {
    color: #fff;
}

/* Close button (absolute top-right) */
.auth-modal-close {
    position: absolute; top: 14px; right: 14px;
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(210, 225, 248, 0.80);
    border-radius: 10px; background: rgba(248,251,255,0.90);
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
    z-index: 11;
}
.auth-modal-close:hover {
    background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.28);
    transform: scale(1.06);
}
.auth-modal-close .lucide { width: 16px; height: 16px; color: #7a8fa8; }

/* ── Body ── */
.auth-modal-body { padding: 6px 36px 36px; }

/* ── Pane headings ── */
.auth-pane-head { margin: 24px 0 22px; text-align: center; }
.auth-modal-title {
    font-size: 26px; font-weight: 850;
    color: #0d1f3c; margin: 0 0 6px;
    letter-spacing: -0.025em; line-height: 1.15;
}
.auth-pane-sub {
    font-size: 13.5px; color: rgba(15, 36, 80, 0.48);
    font-weight: 500; margin: 0; line-height: 1.5;
}

/* ── Panes ── */
.auth-pane { display: none; }
.auth-pane.active { display: block; }

/* ── Fields ── */
.auth-field { margin-bottom: 14px; }
.auth-field label {
    display: block; font-size: 13px; font-weight: 700;
    color: rgba(15, 36, 80, 0.68); margin-bottom: 7px;
}
.auth-input-wrap {
    position: relative; display: flex; align-items: center;
    border: 1.5px solid rgba(210, 225, 248, 0.90);
    border-radius: 12px; background: rgba(248, 251, 255, 0.80);
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.auth-input-wrap:focus-within {
    border-color: rgba(26, 111, 255, 0.52);
    box-shadow: 0 0 0 3px rgba(26, 111, 255, 0.09);
    background: #fff;
}
.auth-input-wrap .field-icon {
    padding: 0 12px; display: flex; flex-shrink: 0;
    color: rgba(15, 36, 80, 0.28);
}
.auth-input-wrap .field-icon .lucide { width: 17px; height: 17px; }
.auth-input-wrap input {
    flex: 1; border: none; background: transparent;
    padding: 13px 12px 13px 0;
    font-size: 14.5px; font-weight: 500;
    color: #0d1f3c; outline: none; min-width: 0;
}
.auth-input-wrap input::placeholder { color: rgba(15,36,80,0.28); font-weight: 400; }

/* Password toggle */
.auth-toggle-pw {
    padding: 8px 12px; border: none; background: transparent;
    cursor: pointer; color: rgba(15,36,80,0.32);
    display: flex; align-items: center;
    transition: color 0.15s ease;
}
.auth-toggle-pw:hover { color: #0d1f3c; }
.auth-toggle-pw .lucide { width: 17px; height: 17px; }
.auth-toggle-pw .icon-eye { display: none; }
.auth-toggle-pw .icon-eye-off { display: block; }
.auth-toggle-pw.is-revealed .icon-eye { display: block; }
.auth-toggle-pw.is-revealed .icon-eye-off { display: none; }

/* Method tabs (密码/验证码) */
.auth-tabs {
    display: flex; gap: 4px; margin-bottom: 16px;
    padding: 3px;
    background: rgba(240, 245, 255, 0.90);
    border: 1px solid rgba(210, 225, 248, 0.70);
    border-radius: 999px;
}
.auth-tab {
    flex: 1; padding: 8px 10px;
    font-size: 13px; font-weight: 650;
    color: rgba(15, 36, 80, 0.45);
    background: transparent; border: none;
    border-radius: 999px; cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
}
.auth-tab:hover { color: #0d1f3c; }
.auth-tab.active {
    color: #1a6fff;
    background: #fff;
    box-shadow: 0 2px 8px rgba(26,111,255,0.14), inset 0 1px 0 rgba(255,255,255,0.9);
}

/* Remember / forgot row */
.auth-row {
    display: flex; align-items: center;
    justify-content: space-between; flex-wrap: wrap;
    gap: 10px; margin-bottom: 16px;
}
.auth-check {
    display: inline-flex; align-items: center; gap: 8px;
    cursor: pointer; font-size: 13px; font-weight: 500;
    color: rgba(15,36,80,0.55);
}
.auth-check input { width: 15px; height: 15px; accent-color: #1a6fff; cursor: pointer; }

/* Links */
.auth-link {
    font-size: 13px; font-weight: 650; color: #1a6fff;
    text-decoration: none; cursor: pointer;
    background: none; border: none; padding: 0; font-family: inherit;
    transition: color 0.15s ease;
}
.auth-link:hover { color: #1240a0; text-decoration: underline; text-underline-offset: 2px; }

/* Submit button */
.auth-submit {
    width: 100%; padding: 14px 24px;
    font-size: 15px; font-weight: 750; color: #fff;
    background: linear-gradient(135deg, #3a7fff 0%, #1a55e8 100%);
    border: none; border-radius: 12px; cursor: pointer;
    box-shadow: 0 4px 18px rgba(26, 111, 255, 0.34), inset 0 1px 0 rgba(255,255,255,0.18);
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
    margin-top: 8px; letter-spacing: 0.015em;
}
.auth-submit:hover {
    filter: brightness(1.07);
    box-shadow: 0 8px 28px rgba(26, 111, 255, 0.44);
    transform: translateY(-1px);
}
.auth-submit:active { transform: translateY(1px); filter: brightness(0.96); }

/* Send code */
.auth-code-row { display: flex; gap: 8px; align-items: stretch; }
.auth-code-row .auth-code-input { flex: 1; min-width: 0; }
/* 无左侧图标时与右侧 padding 对齐，避免占位符贴边 */
.auth-input-wrap.auth-code-input input {
    padding-left: 12px;
}
.auth-send-code {
    flex-shrink: 0; padding: 0 14px;
    font-size: 12.5px; font-weight: 700;
    border: 1.5px solid rgba(26, 111, 255, 0.28);
    border-radius: 10px;
    background: rgba(26, 111, 255, 0.05);
    color: #1a6fff; cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
    white-space: nowrap;
}
.auth-send-code:hover:not(:disabled) { background: #1a6fff; color: #fff; border-color: #1a6fff; }
.auth-send-code:disabled { opacity: 0.42; cursor: not-allowed; }

/* Status messages */
.auth-msg { min-height: 18px; margin-top: 10px; font-size: 13px; font-weight: 650; color: #dc2626; }
.auth-msg.ok { color: #16a34a; }
.auth-reset-lead { font-size: 13.5px; color: rgba(15,36,80,0.52); line-height: 1.6; margin: 0 0 18px; }
.auth-switch { text-align: center; margin-top: 14px; font-size: 13px; color: rgba(15,36,80,0.42); }

/* ── Responsive ── */
@media (max-width: 520px) {
    .auth-modal { padding: 10px; }
    .auth-modal-panel { max-width: 100%; border-radius: 18px; }
    .auth-modal-body { padding: 4px 22px 28px; }
    .auth-modal-title { font-size: 22px; }
    .auth-top-tabs { max-width: 100%; }
    .auth-top-tab { font-size: 13.5px; padding: 8px 10px; }
}

/* ==================== Page Routing ==================== */
/* 胶囊 nav: top:14px + min-height:58px = 72px，加余量到 96px */
.page-main {
    padding-top: 96px;
    min-height: 100vh;
    min-width: 0;
    width: 100%;
    box-sizing: border-box;
}
.page-main.page-enter { animation: none; }

/* 博客文章阅读页（data-nav-active=blog）：隐藏全站胶囊导航，阅读区上移；列表页用 diary-openclaw 显示顶栏 */
html[data-nav-active="blog"] #site-nav {
    display: none !important;
}
html[data-nav-active="blog"] .page-main {
    padding-top: max(12px, env(safe-area-inset-top, 0px));
}

/* 博客列表（diary-openclaw）：顶栏浮在 hero 上，主区不设顶 padding，避免 hero 上方条带留白 */
html[data-nav-active="diary-openclaw"] .page-main {
    padding-top: 0;
}

/* 博客文章单页：右固定「限时优惠」丝带，跳转定价方案 */
#blog-article .ba-home-bookmark {
    position: fixed;
    z-index: 900;
    top: clamp(200px, 75vh, calc(100vh - 150px));
    right: max(12px, env(safe-area-inset-right, 0px));
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    transform: rotate(-11deg);
    transform-origin: 100% 0;
    filter: drop-shadow(0 10px 22px rgba(37, 99, 235, 0.32));
    transition: transform 0.22s ease, filter 0.22s ease;
}
#blog-article .ba-home-bookmark:hover {
    transform: rotate(-9deg) scale(1.04);
    filter: drop-shadow(0 14px 30px rgba(37, 99, 235, 0.4));
}
#blog-article .ba-home-bookmark:focus-visible {
    outline: 2px solid var(--primary-hover, #2563eb);
    outline-offset: 4px;
    border-radius: 10px;
}
#blog-article .ba-home-bookmark__ribbon {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    width: 56px;
    min-height: 120px;
    padding: 18px 9px 24px;
    box-sizing: border-box;
    background: linear-gradient(168deg, var(--primary, #3b82f6) 0%, #3d7ef5 22%, var(--primary-hover, #2563eb) 52%, #1d4ed8 100%);
    color: #fff;
    border-radius: 11px 11px 7px 7px;
    border: 1px solid rgba(255, 255, 255, 0.42);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.45),
        inset 0 -2px 0 rgba(15, 23, 42, 0.12),
        0 6px 0 rgba(30, 64, 175, 0.22);
}
#blog-article .ba-home-bookmark__ribbon::after {
    content: '';
    position: absolute;
    left: 5px;
    right: 5px;
    bottom: -11px;
    height: 12px;
    background: linear-gradient(180deg, #1d4ed8, #1e3a8a);
    clip-path: polygon(0 0, 50% 100%, 100% 0);
    opacity: 0.98;
}
#blog-article .ba-home-bookmark__ico {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    opacity: 0.96;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.12));
}
#blog-article .ba-home-bookmark__ico.lucide,
#blog-article .ba-home-bookmark__ico svg {
    width: 22px;
    height: 22px;
}
#blog-article .ba-home-bookmark__text {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
@media (max-width: 720px) {
    #blog-article .ba-home-bookmark {
        top: auto;
        bottom: max(18px, env(safe-area-inset-bottom, 0px));
        right: max(12px, env(safe-area-inset-right, 0px));
        transform: rotate(-6deg);
        transform-origin: 100% 100%;
    }
    #blog-article .ba-home-bookmark:hover {
        transform: rotate(-5deg) scale(1.03);
    }
    #blog-article .ba-home-bookmark__ribbon {
        flex-direction: row;
        width: auto;
        min-height: 0;
        padding: 12px 16px;
        border-radius: 999px;
        box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.32),
            0 8px 24px rgba(37, 99, 235, 0.3);
    }
    #blog-article .ba-home-bookmark__ribbon::after {
        display: none;
    }
    #blog-article .ba-home-bookmark__text {
        writing-mode: horizontal-tb;
        font-size: 14px;
        letter-spacing: 0.04em;
    }
}
@media (prefers-reduced-motion: reduce) {
    #blog-article .ba-home-bookmark {
        transition: none;
    }
}

/* ==================== Price Number Drop & Bounce ==================== */
/* 全站通用：当价格数字变化时，触发掉落 + 弹跳动画 */
.is-price-bounce {
    display: inline-block;
    animation: priceDropBounce 0.62s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    transform-origin: center bottom;
    will-change: transform, opacity;
}
@keyframes priceDropBounce {
    0%   { transform: translateY(-22px) scale(0.85); opacity: 0; }
    55%  { transform: translateY(4px)   scale(1.10); opacity: 1; }
    72%  { transform: translateY(-3px)  scale(0.96); }
    88%  { transform: translateY(1px)   scale(1.02); }
    100% { transform: translateY(0)     scale(1);    opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .is-price-bounce { animation: priceDropBounceReduced 0.2s ease both; }
    @keyframes priceDropBounceReduced {
        from { opacity: 0; }
        to   { opacity: 1; }
    }
}

/* ==================== Glass Components ==================== */
/* 通用胶囊卡片：全站统一为浅白玻璃 + 柔和阴影 + 大圆角，适用于所有非专门设计的模块 */
.glass-card,
.sketch-box {
    position: relative;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(244,250,255,0.86) 100%);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border: 1px solid rgba(255,255,255,0.85);
    border-radius: var(--radius-card);
    padding: 24px;
    box-shadow:
        0 12px 28px rgba(15, 27, 50, 0.07),
        0 2px 8px rgba(15, 27, 50, 0.04),
        inset 0 1px 0 rgba(255,255,255,0.95);
    transition:
        transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.32s ease,
        border-color 0.22s ease;
}
.glass-card:hover,
.sketch-box:hover {
    transform: translateY(-3px);
    box-shadow:
        0 22px 44px rgba(15, 27, 50, 0.10),
        0 6px 16px rgba(15, 27, 50, 0.06),
        inset 0 1px 0 rgba(255,255,255,1);
    border-color: rgba(120,170,220,0.35);
}

/* 已专门设计的模块不应用通用胶囊样式（保持原有视觉） */
.glass-card.pricing-panel,
.glass-card.terminal-panel,
.glass-card.boarding-pass,
.glass-card.pricing-cockpit,
.glass-card.dc-detail-panel,
.sketch-box.pricing-panel,
.sketch-box.terminal-panel,
.sketch-box.boarding-pass,
.sketch-box.pricing-cockpit,
.sketch-box.dc-detail-panel,
#site-nav .glass-card,
#site-nav .sketch-box,
footer .glass-card,
footer .sketch-box {
    background: revert;
    border: revert;
    box-shadow: revert;
    backdrop-filter: revert;
    -webkit-backdrop-filter: revert;
}

html.perf-lite .glass-card,
html.perf-lite .sketch-box {
    backdrop-filter: blur(6px) !important;
    -webkit-backdrop-filter: blur(6px) !important;
    box-shadow: 0 6px 18px rgba(15,27,50,0.07) !important;
}

/* ==================== Buttons ==================== */
.btn-primary,
.btn-secondary,
.btn-dash,
.btn-nav-login,
.footer-cta__btn,
.auth-submit,
.auth-send-code,
.auth-link,
.lang-trigger,
.nav-user-trigger,
.nav-user-menu-item,
#back-to-top,
.account-btn-inline,
.account-copy-btn,
.btn-machines-book {
    -webkit-tap-highlight-color: transparent;
}

@media (prefers-reduced-motion: no-preference) {
    .btn-primary,
    .btn-secondary,
    .btn-dash,
    .btn-nav-login,
    .footer-cta__btn,
    .auth-submit,
    .auth-send-code,
    .lang-trigger,
    .nav-user-trigger,
    .nav-user-menu-item,
    #back-to-top,
    .account-btn-inline,
    .account-copy-btn,
    .btn-machines-book {
        transform: translateZ(0);
        transition:
            transform var(--dur-fast) var(--ease-smooth),
            box-shadow var(--dur-fast) var(--ease-smooth),
            filter var(--dur-fast) var(--ease-smooth),
            background var(--dur-fast) var(--ease-smooth),
            border-color var(--dur-fast) var(--ease-smooth),
            color var(--dur-fast) var(--ease-smooth);
        will-change: transform;
    }

    @media (hover: hover) {
        .btn-primary:hover,
        .btn-secondary:hover,
        .btn-dash:hover,
        .btn-nav-login:hover,
        .footer-cta__btn:hover,
        .auth-submit:hover,
        .auth-send-code:hover:not(:disabled),
        .lang-trigger:hover,
        .nav-user-trigger:hover,
        .nav-user-menu-item:hover,
        #back-to-top:hover,
        .account-btn-inline:hover,
        .account-copy-btn:hover,
        .btn-machines-book:hover {
            transform: translateY(-2px) scale(1.01);
        }
    }

    .btn-primary:active,
    .btn-secondary:active,
    .btn-dash:active,
    .btn-nav-login:active,
    .footer-cta__btn:active,
    .auth-submit:active,
    .auth-send-code:active:not(:disabled),
    .lang-trigger:active,
    .nav-user-trigger:active,
    .nav-user-menu-item:active,
    #back-to-top:active,
    .account-btn-inline:active,
    .account-copy-btn:active,
    .btn-machines-book:active {
        transform: translateY(0) scale(0.98);
        transition-duration: 0.08s;
    }
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-dash:focus-visible,
.btn-nav-login:focus-visible,
.footer-cta__btn:focus-visible,
.auth-submit:focus-visible,
.auth-send-code:focus-visible,
.lang-trigger:focus-visible,
.nav-user-trigger:focus-visible,
.nav-user-menu-item:focus-visible,
#back-to-top:focus-visible,
.account-btn-inline:focus-visible,
.account-copy-btn:focus-visible,
.btn-machines-book:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.55);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--primary); color: #fff;
    padding: 11px 26px; font-size: 15px; cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    border: none; border-radius: var(--radius-pill);
    box-shadow: var(--shadow-btn);
    transition: background 0.22s, box-shadow 0.22s, transform 0.18s;
    font-weight: 700; font-family: inherit;
}
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 6px 20px rgba(59,130,246,0.42); transform: translateY(-1px); color: #fff; }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 8px rgba(59,130,246,0.25); }

.btn-secondary {
    background: rgba(255,255,255,0.72); color: var(--primary);
    padding: 10px 24px; font-size: 15px; cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    border: 1.5px solid rgba(59,130,246,0.28); border-radius: var(--radius-pill);
    backdrop-filter: var(--glass-blur);
    transition: background 0.22s, border-color 0.22s, transform 0.18s;
    font-weight: 600; font-family: inherit;
}
.btn-secondary:hover { background: rgba(255,255,255,0.92); border-color: var(--primary); transform: translateY(-1px); color: var(--primary); }

/* ══════════════════════════════════════════════════════════
   Ruinart character-roll button system (.rb / .rb-nav)
   JS (layout.js initRb) splits text into .rb-c spans and
   applies the .rb / .rb-nav class automatically.
   ══════════════════════════════════════════════════════════ */

/* Full-replacement buttons (text-only content) */
.rb { overflow: hidden !important; }
.rb .rb-inner {
    display: inline-grid;
    place-items: center;
    min-width: max-content;
}
.rb .rb-text {
    display: flex;
    grid-row: 1;
    grid-column: 1;
    white-space: nowrap;
}
.rb .rb-text--h { pointer-events: none; }
.rb .rb-c {
    display: inline-block;
    transition:
        transform 0.24s cubic-bezier(.5, 0, 0, 1),
        opacity   0.24s cubic-bezier(.5, 0, 0, 1);
    transition-delay: calc(var(--rb-i, 0) * 0.055s);
}
.rb .rb-text--d .rb-c { opacity: 1; transform: translateY(0);   }
.rb .rb-text--h .rb-c { opacity: 0; transform: translateY(60%); }

@media (hover: hover) {
    .rb:hover .rb-text--d .rb-c { opacity: 0; transform: translateY(-55%); }
    .rb:hover .rb-text--h .rb-c { opacity: 1; transform: translateY(0);    }
}

/* .rb-nav — button containing SVG + .nav-auth-label text
   Grid 必须作用在 .rb-inner 上（与 .rb 一致），否则 .rb-text 不是 grid 子项会上下排开成两行 */
.rb-nav .nav-auth-label {
    display: inline-flex;
    align-items: center;
    overflow: hidden;
    vertical-align: middle;
    max-width: 100%;
}
.rb-nav .nav-auth-label .rb-inner {
    display: inline-grid;
    place-items: center;
    min-width: max-content;
}
.rb-nav .nav-auth-label .rb-text {
    display: flex;
    grid-row: 1;
    grid-column: 1;
    white-space: nowrap;
}
.rb-nav .nav-auth-label .rb-text--h { pointer-events: none; }
.rb-nav .nav-auth-label .rb-c {
    display: inline-block;
    transition:
        transform 0.24s cubic-bezier(.5, 0, 0, 1),
        opacity   0.24s cubic-bezier(.5, 0, 0, 1);
    transition-delay: calc(var(--rb-i, 0) * 0.055s);
}
.rb-nav .nav-auth-label .rb-text--d .rb-c { opacity: 1; transform: translateY(0);   }
.rb-nav .nav-auth-label .rb-text--h .rb-c { opacity: 0; transform: translateY(60%); }

@media (hover: hover) {
    .rb-nav:hover .nav-auth-label .rb-text--d .rb-c { opacity: 0; transform: translateY(-55%); }
    .rb-nav:hover .nav-auth-label .rb-text--h .rb-c { opacity: 1; transform: translateY(0);    }
}

/* ==================== Section Header ==================== */
.section-header { text-align: center; margin-bottom: 52px; }
.section-header h2 { font-size: 34px; font-weight: 700; margin-bottom: 14px; display: block; color: var(--text-main); letter-spacing: -0.02em; }
.section-header p { color: var(--text-light); font-size: 17px; }

/* ==================== Highlights ==================== */
.hl-pink { background: linear-gradient(104deg, transparent 0%, rgba(236,72,153,0.12) 2%, rgba(236,72,153,0.12) 98%, transparent 100%); padding: 0 6px; border-radius: 4px; }
.hl-blue { background: linear-gradient(104deg, transparent 0%, rgba(59,130,246,0.12) 2%, rgba(59,130,246,0.12) 98%, transparent 100%); padding: 0 6px; border-radius: 4px; }
.btn-dash:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(59,130,246,0.22); }
.btn-dash.primary { background: var(--primary); color: #fff; }

/* ==================== Toast ==================== */
#maclogin-toast.maclogin-toast {
    position: fixed; bottom: max(24px, env(safe-area-inset-bottom)); left: 50%;
    transform: translateX(-50%); z-index: 4000;
    max-width: min(480px, calc(100vw - 32px)); padding: 12px 18px;
    font-size: 14px; font-weight: 600; line-height: 1.45; text-align: center;
    color: var(--text-main); background: rgba(255,255,255,0.95); backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border); border-radius: var(--radius-card);
    box-shadow: var(--shadow-md); box-sizing: border-box;
}
@media (prefers-reduced-motion: no-preference) {
    #maclogin-toast.maclogin-toast:not([hidden]) { animation: toastPopIn 0.4s var(--ease-spring) forwards; }
    @keyframes toastPopIn {
        from { opacity: 0; transform: translateX(-50%) translateY(12px) scale(0.97); }
        to   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
    }
}
#maclogin-toast.maclogin-toast[hidden] { display: none !important; }
#maclogin-toast.maclogin-toast--error { background: rgba(254,226,226,0.95); border-color: rgba(220,38,38,0.22); }
#maclogin-toast.maclogin-toast--ok    { background: rgba(220,252,231,0.95); border-color: rgba(22,163,74,0.22); }

/* ==================== Page Transitions (minimal) ==================== */
#maclogin-transition { position: fixed; inset: 0; z-index: 100050; pointer-events: none; visibility: hidden; }
#maclogin-transition.maclogin-transition--active { pointer-events: auto; visibility: visible; }

/* ==================== Footer CTA banner ==================== */
.footer-cta {
    position: relative;
    overflow: hidden;
    max-width: 1180px;
    margin: 80px auto 0;
    padding: 32px clamp(24px, 4vw, 56px);
    border-radius: 28px;
    color: #0d2240;
    background:
        url('../images/footer-cta-sky.png') center / cover no-repeat;
    border: 1px solid rgba(255,255,255,0.70);
    box-shadow:
        0 24px 60px -22px rgba(15,27,50,0.22),
        inset 0 1px 0 rgba(255,255,255,0.90);
}
.footer-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    /* 左侧白雾遮罩，让文字区域更易读 */
    background:
        linear-gradient(90deg, rgba(255,255,255,0.82) 0%, rgba(255,255,255,0.55) 55%, transparent 100%);
}
.footer-cta__inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(20px, 4vw, 48px);
    flex-wrap: wrap;
}
.footer-cta__copy {
    flex: 1 1 360px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-cta__title {
    margin: 0;
    font-size: clamp(20px, 2.4vw, 26px);
    font-weight: 600;
    color: rgba(15,27,50,0.78);
    letter-spacing: -0.01em;
    line-height: 1.35;
}
.footer-cta__title-strong {
    color: #0d2240;
    font-weight: 800;
    margin-left: 4px;
}
.footer-cta__sub {
    margin: 0;
    font-size: 13.5px;
    color: rgba(15,27,50,0.55);
    line-height: 1.65;
}
.footer-cta__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.footer-cta__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 22px;
    border-radius: 99px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.22s ease, color 0.22s ease, box-shadow 0.22s ease, transform 0.18s ease, border-color 0.22s ease;
    white-space: nowrap;
}
.footer-cta__btn--primary {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 6px 18px rgba(59,130,246,0.34);
}
.footer-cta__btn--primary:hover {
    background: var(--primary-hover);
    color: #fff;
    box-shadow: 0 10px 26px rgba(59,130,246,0.42);
    transform: translateY(-1px);
}
.footer-cta__btn--ghost {
    color: #0d2240;
    background: rgba(255,255,255,0.85);
    border: 1px solid rgba(15,27,50,0.10);
}
.footer-cta__btn--ghost:hover {
    background: #fff;
    border-color: rgba(59,130,246,0.45);
    color: var(--primary);
    transform: translateY(-1px);
}

/* 装饰飞机：右上角斜飞 */
.footer-cta__plane {
    position: absolute;
    top: 18%;
    right: 6%;
    width: clamp(60px, 9vw, 110px);
    height: auto;
    color: rgba(255,255,255,0.78);
    opacity: 0.85;
    transform: rotate(-12deg);
    pointer-events: none;
    filter: drop-shadow(0 4px 10px rgba(15,27,50,0.10));
    z-index: 0;
}

@media (max-width: 720px) {
    .footer-cta {
        margin: 56px 14px 0;
        padding: 28px 22px;
        border-radius: 22px;
    }
    .footer-cta__inner { gap: 18px; }
    .footer-cta__actions { width: 100%; }
    .footer-cta__btn { flex: 1; justify-content: center; }
    .footer-cta__plane { display: none; }
}

html.perf-lite .footer-cta {
    box-shadow: 0 6px 18px rgba(15,27,50,0.10);
}
html.perf-lite .footer-cta::before { display: none; }

/* ==================== Footer (multi-column glass + sky bg) ==================== */
footer {
    margin-top: 56px;
    padding: 56px 0 calc(90px + env(safe-area-inset-bottom, 0px)); /* 底部含全面屏安全区 */
    border-top: 1px solid rgba(168, 198, 232, 0.55);
    /*
     * 多层背景（前 → 后）：
     * ① 顶部到中段：浅白雾保证 4 列文字可读
     * ② 底部：飞机航迹图，按宽度铺满，靠下对齐 → 上半部分自然被裁切
     * ③ 兜底色：天空蓝渐变
     */
    background:
        linear-gradient(180deg,
            rgba(255,255,255,0.86) 0%,
            rgba(232,244,255,0.62) 38%,
            rgba(200,228,250,0.18) 65%,
            rgba(180,215,250,0) 82%),
        url('../images/footer-sky.png') center center / 100% 100% no-repeat,
        linear-gradient(180deg, #d6ebff 0%, #a9d1f5 100%);
    color: var(--text-main);
    position: relative;
    overflow: hidden;
}
footer::before {
    content: '';
    position: absolute;
    top: 0; left: 8%; right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(64,120,190,0.30), transparent);
    pointer-events: none;
    z-index: 1;
}
footer > .container {
    position: relative;
    z-index: 2;
}

/* 主网格：品牌 + 三列链接 */
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
    padding-bottom: 36px;
}

/* 品牌列 */
.footer-brand-col {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
}
.footer-logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    line-height: 1;
    letter-spacing: -0.015em;
}
.footer-logo-icon {
    width: 32px; height: 32px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.28);
    flex-shrink: 0;
}
.footer-logo-icon svg,
.footer-logo-icon img { width: 100%; height: 100%; display: block; }
.footer-brand-desc {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-light);
    margin: 0;
    max-width: 320px;
}
.footer-brand-mail {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 99px;
    background: rgba(255,255,255,0.62);
    border: 1px solid rgba(120,170,220,0.28);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, transform 0.18s ease, border-color 0.2s ease;
}
.footer-brand-mail:hover {
    background: rgba(59,130,246,0.10);
    border-color: rgba(59,130,246,0.45);
    color: var(--primary-hover);
    transform: translateY(-1px);
}
.footer-brand-mail svg,
.footer-brand-mail .lucide { width: 14px; height: 14px; }

/* 链接列 */
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-width: 0;
}
.footer-col__title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-main);
    margin: 0 0 4px;
    letter-spacing: 0.04em;
    text-transform: none;
}
.footer-col__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col__list a {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    line-height: 1.5;
    transition: color 0.2s ease, transform 0.18s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.footer-col__list a:hover {
    color: var(--primary);
    transform: translateX(2px);
}

/* 数据中心列：前缀代码 chip */
.footer-col__list--dc a { gap: 10px; }
.footer-col__list--dc .dc-code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    padding: 2px 6px;
    font-family: "SF Mono","Fira Code","Consolas",monospace;
    font-size: 10.5px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(59,130,246,0.10);
    border: 1px solid rgba(59,130,246,0.20);
    border-radius: 6px;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

/* 底部分隔条 */
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(120,170,220,0.18);
    flex-wrap: wrap;
}
.footer-copyright {
    font-size: 12.5px;
    color: var(--text-muted);
    margin: 0;
}
.footer-legal {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--text-light);
}
.footer-legal a {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s ease;
}
.footer-legal a:hover { color: var(--primary); }
.footer-legal-sep { color: rgba(15,30,60,0.22); font-size: 11px; }
.footer-plane-icon {
    color: var(--primary);
    opacity: 0.75;
    flex-shrink: 0;
    margin-left: 6px;
    transform: translateY(-1px);
}

/* 俄语、德语、法语等顶栏文案偏长：略收紧字号与间距（随 html lang 全站生效） */
@media (min-width: 769px) {
    html:lang(ru) #site-nav > nav,
    html:lang(de) #site-nav > nav,
    html:lang(fr) #site-nav > nav {
        max-width: min(1220px, calc(100vw - 28px));
    }
    html:lang(ru) .nav-item,
    html:lang(de) .nav-item,
    html:lang(fr) .nav-item {
        font-size: 13.5px;
        padding: 4px 4px;
    }
    html:lang(ru) #site-nav.is-scrolled .nav-item,
    html:lang(de) #site-nav.is-scrolled .nav-item,
    html:lang(fr) #site-nav.is-scrolled .nav-item {
        font-size: 13px;
    }
    html:lang(ru) .nav-links,
    html:lang(de) .nav-links,
    html:lang(fr) .nav-links {
        column-gap: clamp(5px, 1vw, 14px);
    }
    html:lang(ru) .btn-nav-login,
    html:lang(de) .btn-nav-login,
    html:lang(fr) .btn-nav-login {
        font-size: 13px;
        font-weight: 700;
        padding: 8px 14px;
        gap: 5px;
    }
    html:lang(ru) #site-nav.is-scrolled .btn-nav-login,
    html:lang(de) #site-nav.is-scrolled .btn-nav-login,
    html:lang(fr) #site-nav.is-scrolled .btn-nav-login {
        padding: 7px 12px;
    }
    html:lang(ru) .lang-trigger,
    html:lang(de) .lang-trigger,
    html:lang(fr) .lang-trigger {
        min-width: 102px;
        padding: 8px 12px;
        font-size: 13px;
    }
    html:lang(ru) .lang-current-label,
    html:lang(de) .lang-current-label,
    html:lang(fr) .lang-current-label {
        font-size: 12.5px;
        min-width: 48px;
    }
}

/* ==================== Responsive ==================== */
@media (max-width: 1100px) and (min-width: 769px) {
    .nav-links { column-gap: clamp(6px, 1vw, 14px); }
    .nav-item { font-size: 14px; }
    #site-nav > nav { max-width: calc(100vw - 32px); padding-left: 18px; padding-right: 18px; }
    .lang-trigger { min-width: 116px; padding: 9px 13px; }
}
@media (max-width: 900px) and (min-width: 769px) {
    .nav-item { font-size: 13.5px; padding: 4px 4px; }
    .nav-inner { gap: 10px; }
    .nav-links { column-gap: 6px; }
}
@media (max-width: 900px) {
    .bento-grid { grid-template-columns: 1fr 1fr; }
    .pricing-grid, .addon-grid, .blog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    #site-nav {
        padding:
            max(10px, env(safe-area-inset-top, 0px))
            max(12px, env(safe-area-inset-right, 0px))
            0
            max(12px, env(safe-area-inset-left, 0px));
    }
    #site-nav.is-scrolled {
        padding:
            max(6px, env(safe-area-inset-top, 0px))
            max(12px, env(safe-area-inset-right, 0px))
            0
            max(12px, env(safe-area-inset-left, 0px));
    }
    #site-nav > nav { border-radius: 60px; padding: 8px 14px; min-height: 52px; }
    #site-nav.is-scrolled > nav { padding: 6px 12px; min-height: 46px; width: 100%; }
    /* 让 .nav-links 相对 nav-inner 定位，从而紧贴汉堡按钮所在位置 */
    .nav-inner { display: flex; justify-content: space-between; align-items: center; width: 100%; gap: 8px; position: relative; }
    .nav-inner .nav-links { flex: none; max-width: none; overflow: visible; justify-content: flex-start; pointer-events: auto; }
    /* 移动端：保留当前语言全名显示，按钮稍紧凑 */
    .lang-trigger .lang-current-label { display: inline-block; }
    .lang-trigger { min-width: 106px; padding: 8px 11px; min-height: 36px; gap: 5px; }
    .lang-current-label { font-size: 12.5px; min-width: 50px; }
    .lang-trigger .lucide { width: 16px; height: 16px; }
    .lang-chevron { display: none !important; }
    .hamburger { display: flex; flex-shrink: 0; position: relative; z-index: 25; }

    /* 窄屏下右侧控件总宽易超出视口 + body 横向 overflow 隐藏，会导致最右侧汉堡被裁掉 */
    .nav-inner { min-width: 0; }
    .nav-right {
        min-width: 0;
        flex: 1 1 auto;
        max-width: 100%;
        justify-content: flex-end;
    }
    .nav-right .btn-nav-login { flex-shrink: 1; min-width: 0; }
    .nav-right .lang-dropdown { flex: 0 1 auto; min-width: 0; }
    .nav-right .lang-trigger {
        min-width: 0;
        max-width: 100%;
    }

    /* 弹出菜单：贴在汉堡按钮正下方的小卡片，从右上角展开 */
    .nav-links {
        position: absolute;
        top: calc(100% + 12px);
        right: 0; left: auto;
        min-width: 220px;
        max-width: min(280px, calc(100vw - 32px));
        background: rgba(255,255,255,0.97);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border: 1px solid var(--glass-border);
        border-radius: 18px;
        flex-direction: column; flex-wrap: nowrap;
        padding: 10px;
        gap: 2px;
        display: none;
        box-shadow: 0 14px 40px rgba(15, 30, 60, 0.14), 0 2px 8px rgba(15, 30, 60, 0.06);
        transform-origin: top right;
        z-index: 30;
    }
    /* 小三角指向汉堡按钮 */
    .nav-links::before {
        content: '';
        position: absolute;
        top: -6px; right: 18px;
        width: 12px; height: 12px;
        background: rgba(255,255,255,0.97);
        border-left: 1px solid var(--glass-border);
        border-top: 1px solid var(--glass-border);
        transform: rotate(45deg);
        border-radius: 2px 0 0 0;
    }
    /* 移动端：始终全部显示，不受折叠逻辑影响 */
    #site-nav.is-scrolled .nav-links > li,
    .nav-links > li {
        max-width: none !important;
        width: 100%;
        opacity: 1 !important;
        pointer-events: all !important;
        margin: 0 !important;
    }
    #site-nav.is-scrolled .nav-links { column-gap: 0 !important; }
    #site-nav.is-scrolled .lang-dropdown { display: flex; }
    /* 列表项：每行一个，hover/active 块状高亮 */
    .nav-links .nav-item {
        display: block;
        white-space: normal;
        font-size: 15px !important;
        font-weight: 500 !important;
        padding: 10px 14px !important;
        border-radius: 12px;
        color: var(--text-main);
        transition: background 0.18s ease, color 0.18s ease;
        max-width: none;
        overflow: visible;
        text-overflow: unset;
    }
    .nav-links .nav-item:hover { background: rgba(59,130,246,0.08); color: var(--primary); }
    .nav-links .nav-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600 !important; }
    .nav-links .nav-item.active::after,
    .nav-links .nav-item:hover::after { display: none; }

    .nav-links.mobile-active {
        display: flex;
        animation: vpsNavMenuIn 0.22s cubic-bezier(0.22, 1, 0.36, 1);
    }
    @keyframes vpsNavMenuIn {
        from { opacity: 0; transform: scale(0.92) translateY(-6px); }
        to   { opacity: 1; transform: none; }
    }
    .hero h1 { font-size: 36px; }
    .bento-grid { grid-template-columns: 1fr; }
    .dashboard-layout { grid-template-columns: 1fr; gap: 28px; }
    .sidebar { display: none; }
    footer { padding: 40px 0 70px; margin-top: 36px; }
    footer { background-size: auto 100%, 100% 100%, auto; background-position: top, center, 0 0; }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px 24px;
        padding-bottom: 24px;
    }
    .footer-brand-col {
        grid-column: 1 / -1;
        align-items: flex-start;
    }
    .footer-brand-desc { max-width: 100%; }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .footer-legal { flex-wrap: wrap; gap: 10px; }
    .footer-copyright { white-space: normal; }
}
/* 特窄屏：隐藏登录文案与语言名称，为汉堡留出空间（依赖按钮 aria-label） */
@media (max-width: 420px) {
    #site-nav .btn-nav-login .nav-auth-label { display: none; }
    #site-nav .btn-nav-login { padding: 8px 11px; }
    #site-nav .lang-current-label { display: none; }
    #site-nav .lang-trigger { min-width: auto; padding: 8px 10px; }
    #site-nav .nav-right { gap: 6px; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}
a.logo { text-decoration: none; color: inherit; }

/* ==================== 回到顶部 — 胶囊按钮 ==================== */
#back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 890;
    /* 胶囊：自适应宽度（图标 + 文字） */
    height: 42px;
    padding: 0 18px 0 14px;
    border-radius: 99px;
    border: 1px solid rgba(255, 255, 255, 0.72);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255,255,255,0.95);
    cursor: pointer;
    display: inline-flex; align-items: center; gap: 7px;
    font: inherit;
    white-space: nowrap;
    /* 默认隐藏 — 向上滑入出现 */
    opacity: 0;
    transform: translateY(14px) scale(0.88);
    pointer-events: none;
    transition:
        opacity   0.38s ease,
        transform 0.40s cubic-bezier(0.22, 1, 0.36, 1),
        background 0.22s ease,
        box-shadow 0.22s ease,
        border-color 0.22s ease;
}
#back-to-top.btt-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}
/* 飞机图标 */
#back-to-top svg {
    width: 18px; height: 18px;
    color: var(--primary, #3b82f6);
    flex-shrink: 0;
    display: block;
    animation: bttBob 2.8s ease-in-out infinite;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
/* 文字标签 */
#back-to-top .btt-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary, #3b82f6);
    letter-spacing: 0.02em;
    line-height: 1;
}
/* 悬停：胶囊上浮 + 飞机起飞 + 蓝色描边 */
#back-to-top:hover {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 28px rgba(59, 130, 246, 0.20), inset 0 1px 0 rgba(255,255,255,1);
    border-color: rgba(59, 130, 246, 0.35);
    transform: translateY(-4px) scale(1.04);
}
#back-to-top:hover svg {
    animation: bttLaunch 0.55s ease-in-out infinite alternate;
}
#back-to-top:hover .btt-label {
    color: var(--primary-hover, #2563eb);
}
#back-to-top:active {
    transform: translateY(0) scale(0.96);
    transition-duration: 0.1s;
}
/* 漂浮：缓慢上下 */
@keyframes bttBob {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-4px); }
}
/* 起飞：悬停时加速蹿升 */
@keyframes bttLaunch {
    from { transform: translateY(0)   scale(1); }
    to   { transform: translateY(-6px) scale(1.1); }
}
@media (prefers-reduced-motion: reduce) {
    #back-to-top, #back-to-top svg { animation: none !important; transition-duration: 0.01ms !important; }
}
@media (max-width: 480px) {
    #back-to-top {
        bottom: max(18px, env(safe-area-inset-bottom, 0px));
        right: max(14px, env(safe-area-inset-right, 0px));
        height: 38px;
        padding: 0 14px 0 11px;
    }
    #back-to-top svg { width: 16px; height: 16px; }
    #back-to-top .btt-label { font-size: 12px; }
}

/* ============================================================
   MARGIN DECORATIONS — 全站两侧装饰（layout.js 注入，首页除外）
   ============================================================ */
.margin-deco {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    display: none;
}

@media (min-width: 1320px) {
    .margin-deco { display: block; }
}

.mdeco {
    position: absolute;
    top: 0; bottom: 0;
    width: calc((100vw - 1200px) / 2 - 8px);
}

.mdeco--left  { left: 0; }
.mdeco--right { right: 0; }

/* ── 光晕 ── */
.mdeco__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(52px);
}
.mdeco__orb--a {
    width: 220px; height: 220px;
    top: 12%; left: -80px;
    background: radial-gradient(circle, rgba(147,210,255,0.38), transparent 70%);
    animation: mdeco-float 9s ease-in-out infinite;
}
.mdeco__orb--b {
    width: 160px; height: 160px;
    top: 58%; left: -20px;
    background: radial-gradient(circle, rgba(20,184,166,0.22), transparent 70%);
    animation: mdeco-float 12s ease-in-out infinite reverse;
}
.mdeco__orb--c {
    width: 240px; height: 240px;
    top: 30%; right: -90px;
    background: radial-gradient(circle, rgba(99,102,241,0.20), transparent 70%);
    animation: mdeco-float 10s ease-in-out infinite;
}

/* ── 点阵纹理 ── */
.mdeco__dots {
    position: absolute;
    top: 38%; left: 4px;
    width: 80px; height: 120px;
    background-image: radial-gradient(circle, rgba(59,130,246,0.30) 1.2px, transparent 1.2px);
    background-size: 12px 12px;
    opacity: 0.7;
}

/* ── 浮动卡片 ── */
.mdeco__card {
    position: absolute;
    border-radius: 18px;
    background: rgba(255,255,255,0.68);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    border: 1px solid rgba(255,255,255,0.80);
    box-shadow: 0 12px 32px rgba(30,80,160,0.10), inset 0 1px 0 rgba(255,255,255,0.9);
    animation: mdeco-float 11s ease-in-out infinite;
}

.mdeco__card--chip {
    top: 28%;
    left: 8px;
    right: 6px;
    padding: 14px 13px 12px;
}

.mdeco__card-icon {
    width: 38px; height: 38px;
    border-radius: 11px;
    background: rgba(219,234,254,0.90);
    border: 1px solid rgba(59,130,246,0.20);
    display: flex; align-items: center; justify-content: center;
    color: rgba(37,99,235,0.85);
    margin-bottom: 10px;
}

.mdeco__card-title {
    margin: 0 0 2px;
    font-size: 12.5px;
    font-weight: 780;
    color: #0d2240;
    letter-spacing: -0.01em;
}

.mdeco__card-sub {
    margin: 0 0 9px;
    font-size: 10.5px;
    color: rgba(15,27,50,0.52);
}

.mdeco__card-specs {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.mdeco__card-specs span {
    padding: 3px 7px;
    border-radius: 6px;
    background: rgba(59,130,246,0.10);
    border: 1px solid rgba(59,130,246,0.18);
    color: rgba(37,99,235,0.85);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* ── 节点拓扑 ── */
.mdeco__topo {
    position: absolute;
    top: 14%;
    left: 4px;
    right: 4px;
    text-align: center;
    animation: mdeco-float 13s ease-in-out infinite reverse;
}

.mdeco__topo svg {
    width: 100%;
    max-width: 160px;
    height: auto;
    filter: drop-shadow(0 4px 14px rgba(59,130,246,0.12));
}

.mdeco__topo-label {
    margin: 4px 0 0;
    font-size: 10px;
    font-weight: 700;
    color: rgba(15,27,50,0.45);
    letter-spacing: 0.03em;
}

@keyframes mdeco-pulse {
    0%, 100% { r: 20; opacity: 0.18; }
    50%       { r: 27; opacity: 0.06; }
}
.mdeco-pulse { animation: mdeco-pulse 3s ease-in-out infinite; }

/* ── 指标卡 ── */
.mdeco__card--stats {
    bottom: 30%;
    left: 6px;
    right: 6px;
    padding: 13px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation-delay: -4s;
}

.mdeco__stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.mdeco__stat-num {
    font-size: 18px;
    font-weight: 850;
    color: #0d2240;
    line-height: 1;
    letter-spacing: -0.03em;
}

.mdeco__stat-num small {
    font-size: 10px;
    font-weight: 600;
    color: rgba(15,27,50,0.50);
    letter-spacing: 0;
}

.mdeco__stat-label {
    font-size: 9.5px;
    color: rgba(15,27,50,0.48);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.mdeco__divider {
    width: 1px;
    height: 28px;
    background: rgba(59,130,246,0.15);
    flex-shrink: 0;
}

/* ── 装饰圆环 ── */
.mdeco__ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px dashed rgba(59,130,246,0.20);
}

.mdeco__ring--1 {
    width: 90px; height: 90px;
    bottom: 22%;
    left: 50%; transform: translateX(-50%);
    animation: mdeco-spin 20s linear infinite;
}

.mdeco__ring--2 {
    width: 70px; height: 70px;
    bottom: 18%;
    left: 50%; transform: translateX(-50%);
    border-color: rgba(20,184,166,0.22);
    animation: mdeco-spin 14s linear infinite reverse;
}

@keyframes mdeco-float {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-10px); }
}

@keyframes mdeco-spin {
    from { transform: translateX(-50%) rotate(0deg); }
    to   { transform: translateX(-50%) rotate(360deg); }
}