/* ---------- Magia Record 配色 ---------- */
:root {
    --color-primary: #ff5a8c;        /* 主调：魔法纪录粉 */
    --color-primary-deep: #e63b76;   /* 深粉 */
    --color-primary-soft: #ffd6e3;   /* 浅粉 */
    --color-secondary: #a78bca;      /* 紫调 */
    --color-secondary-soft: #ede4f6; /* 浅紫 */
    --color-accent: #ffb84d;         /* 金黄点缀 */

    --bg: #fffafc;                   /* 主背景 */
    --bg-soft: #fff3f7;              /* 卡片背景 */
    --bg-card: #ffffff;              /* 卡片 */
    --border: #f5dde6;               /* 浅色边框 */
    --border-soft: #fbe9f0;

    --text: #2d2a35;                 /* 主文字 */
    --text-soft: #6b6577;            /* 次要文字 */
    --text-mute: #a39db0;            /* 辅助文字 */

    --shadow-sm: 0 2px 8px rgba(255, 90, 140, 0.06);
    --shadow-md: 0 6px 24px rgba(255, 90, 140, 0.10);
    --shadow-lg: 0 12px 40px rgba(255, 90, 140, 0.14);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* ---------- 顶栏 ---------- */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: 56px;
    background: rgba(255, 250, 252, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.topbar.hidden {
    transform: translateY(-100%);
}

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

.topbar-brand {
    font-size: 16px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.3px;
    flex-shrink: 0;
}

.topbar-right {
    position: relative;
}

.topbar-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 8px;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.topbar-toggle:hover {
    background: var(--bg-soft);
    border-color: var(--color-primary-soft);
}

.topbar-toggle span {
    display: block;
    height: 2px;
    background: var(--text-soft);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.2s ease, background 0.15s;
    transform-origin: center;
}

.topbar-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
    background: var(--color-primary-deep);
}
.topbar-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.topbar-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
    background: var(--color-primary-deep);
}

.topbar-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: rgba(255, 250, 252, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px) scale(0.97);
    transform-origin: top right;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.topbar-menu.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

.topbar-link {
    display: block;
    padding: 9px 14px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-soft);
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.topbar-link:hover {
    background: var(--bg-soft);
    color: var(--color-primary-deep);
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
                 Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 88px 24px 48px; /* 56px topbar + 32px breathing room */
    background:
        radial-gradient(circle at 15% 20%, rgba(255, 184, 209, 0.55) 0%, transparent 45%),
        radial-gradient(circle at 85% 10%, rgba(199, 175, 230, 0.45) 0%, transparent 50%),
        radial-gradient(circle at 50% 100%, rgba(255, 214, 227, 0.35) 0%, transparent 55%),
        linear-gradient(180deg, #fff8fb 0%, #fffafc 100%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 12% 30%, rgba(255, 90, 140, 0.25), transparent),
        radial-gradient(2px 2px at 80% 70%, rgba(167, 139, 202, 0.3), transparent),
        radial-gradient(1.5px 1.5px at 40% 80%, rgba(255, 184, 77, 0.35), transparent),
        radial-gradient(1.5px 1.5px at 65% 25%, rgba(255, 90, 140, 0.25), transparent);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
    color: var(--color-primary-deep);
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(34px, 5.2vw, 52px);
    font-weight: 700;
    margin: 0 0 10px;
    color: var(--text);
    letter-spacing: -0.5px;
}

.title-accent {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-left: 8px;
}

.hero-subtitle {
    font-size: clamp(14px, 1.6vw, 16px);
    color: var(--text-soft);
    margin: 0 0 28px;
    font-weight: 400;
}

/* ---------- 下载按钮 ---------- */
.download-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    max-width: 880px;
    margin: 0 auto;
}

.btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    border-radius: var(--radius-md);
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.btn-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.btn-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.3;
}

.btn-subtitle {
    font-size: 12px;
    opacity: 0.8;
    letter-spacing: 0.3px;
}

/* 强调色 */
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
    color: #fff;
    box-shadow: var(--shadow-md);
}
.btn-primary .btn-icon {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
}

/* 普通色 */
.btn-secondary {
    background: #fff;
    color: var(--text);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}
.btn-secondary .btn-icon {
    background: var(--color-primary-soft);
    color: var(--color-primary-deep);
}

/* 虚化色 */
.btn-tertiary {
    background: rgba(255, 255, 255, 0.5);
    color: var(--text-soft);
    border: 1px dashed var(--border);
    backdrop-filter: blur(4px);
}
.btn-tertiary .btn-icon {
    background: rgba(167, 139, 202, 0.15);
    color: var(--color-secondary);
}
.btn-tertiary:hover {
    background: #fff;
    color: var(--text);
}

/* ---------- 通用 section ---------- */
.main {
    flex: 1;
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    padding: 24px;
}

.section {
    padding: 56px 0;
    border-bottom: 1px solid var(--border-soft);
}
.section:last-child { border-bottom: none; }

.section-head { margin-bottom: 32px; }

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.section-title {
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--text);
}

.section-desc {
    color: var(--text-soft);
    font-size: 14px;
    margin: 0;
}

.section-body p {
    margin: 0 0 14px;
    color: var(--text-soft);
}

/* ---------- 贡献者 ---------- */
.contributors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.contributor-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.contributor-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-soft);
}

.contributor-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--color-primary-soft);
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(255, 90, 140, 0.15);
}

.contributor-info { min-width: 0; flex: 1; }

.contributor-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-deep);
    margin-bottom: 2px;
}

.contributor-handles {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 8px;
}

.contributor-handle {
    font-size: 12px;
    color: var(--text-mute);
    letter-spacing: 0.3px;
}

.contributor-info > .contributor-handle { margin-bottom: 8px; }

.contributor-role {
    font-size: 14px;
    color: var(--text-soft);
    margin: 0;
    line-height: 1.6;
}

/* ---------- 免责申明 ---------- */
.disclaimer-box {
    padding: 24px 28px;
    background: linear-gradient(135deg, #fff5f9 0%, #faf2fb 100%);
    border: 1px solid var(--border-soft);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--text-soft);
}
.disclaimer-box p { margin: 0 0 12px; }
.disclaimer-box p:last-child { margin-bottom: 0; }

/* ---------- 友情链接 ---------- */
.friend-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.friend-card {
    display: block;
    padding: 18px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.friend-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    border-color: var(--color-primary-soft);
}

.friend-domain {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-deep);
    margin-bottom: 4px;
    word-break: break-all;
}

.friend-desc {
    font-size: 13px;
    color: var(--text-soft);
}

/* ---------- 页脚 ---------- */
.footer {
    background: linear-gradient(180deg, #fff3f7 0%, #ffe8f0 100%);
    border-top: 1px solid var(--border);
    padding: 32px 24px 28px;
}

.footer-inner {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand { margin-bottom: 14px; }

.footer-logo {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.footer-tagline {
    font-size: 13px;
    color: var(--text-soft);
    margin: 0;
}

.footer-copy {
    margin: 0;
    color: var(--text-mute);
    font-size: 12px;
    letter-spacing: 0.3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
    .hero { padding: 80px 20px 40px; }
    .section { padding: 40px 0; }
}