/* ==========================================================================
   怪兽聚合GS - 主样式表
   配色：深紫黑底 + 品牌紫红渐变 + 暖橙点缀（呼应"怪兽"能量感与影视沉浸氛围）
   ========================================================================== */

/* ---------- 变量与基础 ---------- */
:root {
    /* 主色系 - 呼应 app logo 的紫红能量感 */
    --c-bg: #0a0612;
    --c-bg-2: #120a1f;
    --c-surface: rgba(28, 18, 48, 0.6);
    --c-surface-2: rgba(40, 24, 66, 0.5);
    --c-border: rgba(168, 85, 247, 0.18);
    --c-border-strong: rgba(217, 70, 239, 0.4);

    --c-text: #f4f1fb;
    --c-text-2: #b8aec9;
    --c-text-3: #7d7191;

    --c-primary: #a855f7;       /* 紫 */
    --c-primary-2: #d946ef;     /* 品红 */
    --c-accent: #fb923c;        /* 暖橙 */
    --c-accent-2: #f59e0b;      /* 金橙 */

    --gradient-brand: linear-gradient(135deg, #a855f7 0%, #d946ef 50%, #fb923c 100%);
    --gradient-brand-soft: linear-gradient(135deg, rgba(168,85,247,0.15), rgba(217,70,239,0.12), rgba(251,146,60,0.1));
    --gradient-text: linear-gradient(120deg, #c084fc 0%, #e879f9 45%, #fb923c 100%);

    --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.35);
    --shadow-card: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
    --shadow-float: 0 30px 80px -30px rgba(168, 85, 247, 0.5);

    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    --container: 1200px;
    --nav-h: 72px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- 背景装饰 ---------- */
.bg-decoration {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.45;
    animation: float 18s ease-in-out infinite;
}
.blob-1 {
    width: 520px; height: 520px;
    background: radial-gradient(circle, #a855f7, transparent 70%);
    top: -120px; left: -100px;
}
.blob-2 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, #d946ef, transparent 70%);
    top: 30%; right: -120px;
    animation-delay: -6s;
}
.blob-3 {
    width: 440px; height: 440px;
    background: radial-gradient(circle, #fb923c, transparent 70%);
    bottom: -100px; left: 30%;
    opacity: 0.3;
    animation-delay: -12s;
}
.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(168,85,247,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168,85,247,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -30px) scale(1.05); }
    66% { transform: translate(-30px, 40px) scale(0.95); }
}

/* ---------- 通用按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: all 0.35s var(--ease);
    cursor: pointer;
    white-space: nowrap;
}
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-primary {
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: 0 10px 30px -8px rgba(217, 70, 239, 0.6);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 45px -10px rgba(217, 70, 239, 0.75);
}
.btn-ghost {
    background: rgba(255,255,255,0.04);
    color: var(--c-text);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(10px);
}
.btn-ghost:hover {
    background: rgba(168,85,247,0.12);
    border-color: var(--c-border-strong);
    transform: translateY(-2px);
}

/* ---------- 顶部导航 ---------- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    z-index: 100;
    transition: all 0.4s var(--ease);
    background: transparent;
}
.navbar.scrolled {
    background: rgba(10, 6, 18, 0.75);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 10px 40px -15px rgba(0,0,0,0.6);
}
.nav-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s var(--ease);
}
.logo:hover { transform: scale(1.03); }
.logo-img {
    width: 40px; height: 40px;
    border-radius: 12px;
    object-fit: cover;
    background: var(--gradient-brand);
    box-shadow: var(--shadow-glow);
}
.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.logo-text strong {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-left: 2px;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-link {
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--c-text-2);
    transition: all 0.3s var(--ease);
    position: relative;
}
.nav-link:hover {
    color: var(--c-text);
    background: rgba(168,85,247,0.1);
}
.nav-link.active {
    color: var(--c-text);
    background: rgba(168,85,247,0.14);
}
.nav-cta {
    background: var(--gradient-brand);
    color: #fff !important;
    box-shadow: 0 8px 22px -8px rgba(217,70,239,0.6);
    margin-left: 8px;
}
.nav-cta:hover {
    transform: translateY(-2px);
    background: var(--gradient-brand);
    box-shadow: 0 14px 30px -8px rgba(217,70,239,0.8);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav-toggle span {
    width: 24px; height: 2px;
    background: var(--c-text);
    border-radius: 2px;
    transition: all 0.3s var(--ease);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    padding: calc(var(--nav-h) + 40px) 0 80px;
    display: flex;
    align-items: center;
}
.hero-container {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}
.hero-content { max-width: 600px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    border-radius: 999px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(10px);
    font-size: 13px;
    color: var(--c-text-2);
    margin-bottom: 24px;
}
.pulse-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}
.hero-title {
    font-size: clamp(2.6rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -1px;
    margin-bottom: 22px;
}
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-left: 6px;
}
.hero-subtitle {
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    color: var(--c-text-2);
    margin-bottom: 30px;
    line-height: 1.8;
}
.hero-meta {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 18px 24px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    margin-bottom: 32px;
    flex-wrap: wrap;
}
.meta-item { display: flex; flex-direction: column; gap: 2px; }
.meta-label {
    font-size: 12px;
    color: var(--c-text-3);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}
.meta-value {
    font-size: 17px;
    font-weight: 700;
    color: var(--c-text);
}
.meta-divider {
    width: 1px; height: 32px;
    background: var(--c-border);
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--c-text-2);
    background: rgba(168,85,247,0.08);
    border: 1px solid var(--c-border);
    transition: all 0.3s var(--ease);
}
.tag:hover {
    color: var(--c-text);
    background: rgba(168,85,247,0.18);
    border-color: var(--c-border-strong);
}

/* ---------- 首屏截图叠加 ---------- */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 540px;
}
.glow-ring {
    position: absolute;
    width: 460px; height: 460px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(217,70,239,0.25) 0%, transparent 65%);
    filter: blur(40px);
    z-index: 0;
    animation: pulseGlow 4s ease-in-out infinite;
}
@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.08); opacity: 1; }
}
.screenshots {
    position: relative;
    width: 100%;
    height: 520px;
    perspective: 1400px;
    z-index: 2;
}
.shot {
    position: absolute;
    width: 260px;
    aspect-ratio: 9 / 19;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: var(--shadow-float), 0 0 0 1px rgba(255,255,255,0.08);
    opacity: 0;
    cursor: pointer;
    transition: transform 0.55s var(--ease-out), opacity 0.45s var(--ease-out), filter 0.45s var(--ease-out), box-shadow 0.55s var(--ease-out);
    transform-style: preserve-3d;
    will-change: transform;
}
.shot.entered { opacity: 1; }

/* ---------- 纯 CSS 绘制的 App 屏幕界面 ---------- */
.shot-screen {
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, #110821 0%, #1f1140 50%, #2e1754 100%);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    font-size: 0;
}

/* 状态栏 */
.phone-statusbar {
    position: relative;
    height: 6.2%;
    flex: 0 0 auto;
    padding: 0 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 2;
}
.phone-statusbar::before {
    content: "";
    width: 18%;
    height: 5px;
    background: linear-gradient(90deg, #f4f1fb 60%, transparent 60%, transparent 68%, #f4f1fb 68%);
    border-radius: 3px;
    opacity: 0.9;
}
.phone-statusbar::after {
    content: "";
    display: flex;
    gap: 5px;
    width: 26%;
    height: 7px;
    background:
        linear-gradient(#f4f1fb, #f4f1fb) left/16% 70% no-repeat,
        linear-gradient(#f4f1fb, #f4f1fb) 24%/10% 100% no-repeat,
        linear-gradient(#f4f1fb, #f4f1fb) 42%/55% 100% no-repeat;
    opacity: 0.9;
}
.phone-statusbar.dark::before, .phone-statusbar.dark::after {
    filter: brightness(1.1);
}

/* 底部导航条 */
.phone-navbar {
    margin-top: auto;
    height: 7%;
    flex: 0 0 auto;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: rgba(10,6,18,0.6);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-around;
}
.phone-navbar::before, .phone-navbar::after,
.phone-navbar span { display: none; }
.phone-navbar::before {
    content: "";
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 36%;
    height: 4px;
    background: rgba(255,255,255,0.35);
    border-radius: 4px;
}

/* ============== 截图1：首页推荐 ============== */
.screen-home {
    background:
        radial-gradient(120% 50% at 50% -10%, rgba(217,70,239,0.35), transparent 60%),
        linear-gradient(180deg, #120724 0%, #1a0d38 55%, #2a1652 100%);
}
.home-header {
    flex: 0 0 auto;
    padding: 3% 5% 0;
    display: flex;
    align-items: center;
    gap: 4%;
    height: 9%;
}
.home-logo {
    width: 22px; height: 22px;
    border-radius: 7px;
    background: var(--gradient-brand);
    box-shadow: 0 0 12px -2px rgba(217,70,239,0.7);
    flex-shrink: 0;
}
.home-search {
    flex: 1;
    height: 62%;
    border-radius: 999px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.09);
    position: relative;
}
.home-search::before {
    content: "";
    position: absolute;
    left: 10px; top: 50%;
    transform: translateY(-50%);
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 1.5px solid rgba(255,255,255,0.5);
    box-shadow: 3px 3px 0 -1px rgba(255,255,255,0.5);
}
.home-avatar {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fb923c, #d946ef);
    flex-shrink: 0;
}
.home-tabs {
    flex: 0 0 auto;
    padding: 3% 5% 2%;
    display: flex;
    gap: 5%;
    height: 6%;
}
.home-tabs .tab {
    flex: none;
    height: 12px;
    width: 15%;
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
    opacity: 0.6;
}
.home-tabs .tab:nth-child(2) { width: 12%; }
.home-tabs .tab:nth-child(3) { width: 10%; }
.home-tabs .tab:nth-child(4) { width: 14%; }
.home-tabs .tab.on {
    background: var(--gradient-brand);
    width: 18%;
    opacity: 1;
    position: relative;
}
.home-tabs .tab.on::after {
    content: "";
    position: absolute;
    bottom: -4px; left: 50%;
    transform: translateX(-50%);
    width: 55%; height: 2px;
    border-radius: 2px;
    background: var(--c-accent);
}
.home-banner {
    flex: 0 0 auto;
    margin: 1% 5% 0;
    height: 20%;
    border-radius: 14px;
    background:
        radial-gradient(90% 100% at 15% 30%, rgba(251,146,60,0.7), transparent 60%),
        radial-gradient(70% 80% at 85% 80%, rgba(168,85,247,0.85), transparent 60%),
        linear-gradient(135deg, #3b1b6b, #1b0a38);
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.4);
}
.home-banner::before {
    content: "";
    position: absolute;
    inset: 12% 58% 12% 10%;
    background: linear-gradient(160deg, #ffd6a3, #d946ef 60%, #6a33ff);
    border-radius: 10px;
    opacity: 0.95;
}
.home-banner::after {
    content: "";
    position: absolute;
    right: 10%; top: 50%;
    transform: translateY(-50%);
    width: 30%; height: 44%;
    background:
        linear-gradient(#fff,#fff) top/100% 18% no-repeat,
        linear-gradient(rgba(255,255,255,0.7),rgba(255,255,255,0.7)) 0 30%/75% 10% no-repeat,
        linear-gradient(rgba(255,255,255,0.7),rgba(255,255,255,0.7)) 0 48%/90% 9% no-repeat,
        linear-gradient(var(--c-accent), var(--c-accent)) bottom left/45% 18% no-repeat;
    border-radius: 3px;
}
.home-section-title {
    flex: 0 0 auto;
    margin: 4% 5% 2%;
    height: 16px;
    width: 38%;
    background: linear-gradient(90deg, #fff, #fff 60%, transparent 60%);
    background-size: 100% 14px, 85% 8px;
    background-repeat: no-repeat;
    background-position: 0 0, 0 100%;
    position: relative;
}
.home-section-title::after {
    content: "";
    position: absolute;
    right: -62%; top: 20%;
    width: 50%; height: 40%;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 85%, rgba(255,255,255,0.4) 100%);
    border-radius: 2px;
    clip-path: polygon(0 50%, 85% 50%, 85% 0, 100% 50%, 85% 100%, 85% 50%);
}
.home-section-title.s2 { width: 30%; }
.home-section-title.s2::after { width: 60%; right: -80%; }

.home-grid {
    flex: 0 0 auto;
    margin: 0 5%;
    height: 22%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3%;
}
.home-grid .poster {
    border-radius: 9px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 18px -8px rgba(0,0,0,0.6);
}
.home-grid .poster::after {
    content: "";
    position: absolute;
    left: 6%; right: 6%; bottom: 6%;
    height: 18%;
    background: linear-gradient(90deg, rgba(255,255,255,0.95) 75%, transparent 75%);
    border-radius: 2px;
}
.home-grid .p1 {
    background:
        radial-gradient(80% 80% at 20% 20%, #fde68a, transparent 55%),
        linear-gradient(160deg, #ef4444, #7c3aed);
}
.home-grid .p2 {
    background:
        radial-gradient(70% 70% at 80% 30%, #a7f3d0, transparent 55%),
        linear-gradient(160deg, #0f766e, #4338ca);
}
.home-grid .p3 {
    background:
        radial-gradient(80% 80% at 30% 15%, #fecaca, transparent 50%),
        linear-gradient(160deg, #be123c, #581c87);
}
.home-grid .p4 {
    background:
        radial-gradient(80% 80% at 70% 10%, #fde68a, transparent 55%),
        linear-gradient(160deg, #ea580c, #7c2d12);
}

.home-list {
    flex: 0 0 auto;
    margin: 0 5% 3%;
    height: 14%;
    display: flex;
    flex-direction: column;
    gap: 8%;
}
.home-list .list-item {
    flex: 1;
    display: flex;
    gap: 4%;
    align-items: center;
}
.li-cover {
    flex: 0 0 20%;
    height: 100%;
    border-radius: 7px;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
}
.list-item:nth-child(2) .li-cover {
    background: linear-gradient(135deg, #06b6d4, #a855f7);
}
.li-meta { flex: 1; height: 100%; position: relative; }
.li-meta::before {
    content: "";
    position: absolute;
    inset: 5% 18% 55% 0;
    background: linear-gradient(90deg, rgba(255,255,255,0.9) 80%, transparent 80%);
    border-radius: 2px;
}
.li-meta::after {
    content: "";
    position: absolute;
    inset: 60% 40% 5% 0;
    background: linear-gradient(90deg, rgba(255,255,255,0.35) 65%, transparent 65%);
    border-radius: 2px;
}

/* ============== 截图2：分类浏览 ============== */
.screen-category {
    background:
        radial-gradient(120% 40% at 50% 0%, rgba(168,85,247,0.3), transparent 60%),
        linear-gradient(180deg, #0f0520 0%, #1a0e38 55%, #251654 100%);
}
.cat-title {
    flex: 0 0 auto;
    margin: 4% 5% 2%;
    height: 24px;
    width: 42%;
    background: linear-gradient(90deg, #fff, #fff);
    background-size: 80% 18px, 55% 9px;
    background-repeat: no-repeat;
    background-position: 0 0, 0 100%;
    border-radius: 2px;
}
.cat-chips {
    flex: 0 0 auto;
    margin: 2% 5% 3%;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 8px;
    height: 9%;
}
.cat-chips .chip {
    flex: none;
    min-width: 14%;
    padding: 0 10px;
    height: 22px;
    border-radius: 999px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
}
.cat-chips .chip.on {
    background: var(--gradient-brand);
    border-color: transparent;
    box-shadow: 0 4px 14px -4px rgba(217,70,239,0.7);
}
.cat-chips .chip:nth-child(1) { width: 14%; }
.cat-chips .chip:nth-child(2) { width: 22%; }
.cat-chips .chip:nth-child(3) { width: 18%; }
.cat-chips .chip:nth-child(4) { width: 28%; }
.cat-chips .chip:nth-child(5) { width: 20%; }
.cat-chips .chip:nth-child(6) { width: 16%; }

.cat-grid {
    flex: 1;
    margin: 0 5%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 4%;
    min-height: 38%;
}
.cat-grid .tile {
    border-radius: 11px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 20px -10px rgba(0,0,0,0.6);
}
.tile-cover {
    flex: 1;
    display: block;
    position: relative;
}
.tile-label {
    flex: 0 0 15px;
    background: rgba(10,6,18,0.55);
    display: block;
}
.cat-grid .t1 .tile-cover { background: radial-gradient(90% 90% at 30% 30%, #fca5a5, transparent 55%), linear-gradient(145deg, #ef4444, #7c2d12); }
.cat-grid .t2 .tile-cover { background: radial-gradient(90% 90% at 70% 20%, #bae6fd, transparent 55%), linear-gradient(145deg, #0284c7, #1e3a8a); }
.cat-grid .t3 .tile-cover { background: radial-gradient(90% 90% at 20% 40%, #fde68a, transparent 55%), linear-gradient(145deg, #f59e0b, #b45309); }
.cat-grid .t4 .tile-cover { background: radial-gradient(90% 90% at 60% 20%, #bbf7d0, transparent 55%), linear-gradient(145deg, #10b981, #064e3b); }
.cat-grid .t5 .tile-cover { background: radial-gradient(90% 90% at 30% 30%, #ddd6fe, transparent 55%), linear-gradient(145deg, #8b5cf6, #3b0764); }
.cat-grid .t6 .tile-cover { background: radial-gradient(90% 90% at 70% 30%, #fbcfe8, transparent 55%), linear-gradient(145deg, #db2777, #831843); }

.cat-filter {
    flex: 0 0 auto;
    margin: 3% 5%;
    height: 6%;
    display: flex;
    gap: 8px;
}
.cat-filter span {
    flex: 1;
    border-radius: 7px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.09);
    position: relative;
}
.cat-filter span::before {
    content: "";
    position: absolute;
    inset: 25% 14% 25% 25%;
    background: linear-gradient(90deg, rgba(255,255,255,0.55) 70%, transparent 70%);
    border-radius: 2px;
}
.cat-filter span::after {
    content: "";
    position: absolute;
    top: 50%; right: 14%;
    transform: translateY(-50%);
    width: 0; height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid rgba(255,255,255,0.6);
}

/* ============== 截图3：高清播放 ============== */
.screen-player {
    background: linear-gradient(180deg, #05010c 0%, #0a0417 35%, #170c2d 100%);
}
.player-video {
    flex: 0 0 auto;
    margin: 0;
    height: 32%;
    background:
        radial-gradient(60% 50% at 30% 40%, rgba(251,146,60,0.6), transparent 70%),
        radial-gradient(50% 60% at 75% 60%, rgba(217,70,239,0.55), transparent 70%),
        linear-gradient(135deg, #1e0a4b 0%, #3a1168 50%, #130424 100%);
    position: relative;
    overflow: hidden;
}
.player-video::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 4px),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 4px);
    mix-blend-mode: overlay;
    opacity: 0.4;
}
.pv-center {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}
.play-btn {
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    border: 1.5px solid rgba(255,255,255,0.5);
    position: relative;
    box-shadow: 0 8px 24px -6px rgba(0,0,0,0.6);
}
.play-btn::after {
    content: "";
    position: absolute;
    top: 50%; left: 55%;
    transform: translate(-50%, -50%);
    width: 0; height: 0;
    border-top: 9px solid transparent;
    border-bottom: 9px solid transparent;
    border-left: 14px solid #fff;
}
.pv-progress {
    position: absolute;
    left: 6%; right: 6%; bottom: 20%;
    height: 4px;
    border-radius: 4px;
    background: rgba(255,255,255,0.18);
    z-index: 3;
}
.pv-bar {
    position: absolute;
    inset: 0 auto 0 0;
    width: 65%;
    border-radius: 4px;
    background: var(--gradient-brand);
    display: block;
}
.pv-dot {
    position: absolute;
    left: 65%; top: 50%;
    transform: translate(-50%, -50%);
    width: 12px; height: 12px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 10px rgba(255,255,255,0.8), 0 0 0 4px rgba(217,70,239,0.35);
    display: block;
}
.pv-time {
    position: absolute;
    left: 6%; right: 6%; bottom: 5%;
    display: flex;
    justify-content: space-between;
    z-index: 3;
}
.pv-time span {
    display: block;
    width: 40px; height: 10px;
    background: rgba(255,255,255,0.85);
    border-radius: 2px;
}
.pv-time span:last-child { width: 36px; opacity: 0.75; }

.player-meta {
    flex: 0 0 auto;
    padding: 4% 5% 2%;
    display: grid;
    grid-template-columns: 1fr 110px;
    grid-template-rows: 18px 10px;
    gap: 8px 10px;
    align-items: center;
}
.pm-title {
    display: block;
    grid-column: 1;
    grid-row: 1;
    height: 18px;
    background: linear-gradient(90deg, #fff, #fff 80%, transparent 80%);
    border-radius: 2px;
}
.pm-info {
    display: block;
    grid-column: 1;
    grid-row: 2;
    height: 10px;
    width: 80%;
    background: rgba(255,255,255,0.35);
    border-radius: 2px;
}
.pm-rate {
    display: block;
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    justify-self: end;
    width: 80px; height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(251,191,36,0.2), rgba(217,70,239,0.2));
    border: 1px solid rgba(217,70,239,0.35);
    position: relative;
}
.pm-rate::before {
    content: "";
    position: absolute;
    left: 10px; top: 50%;
    transform: translateY(-50%);
    width: 14px; height: 14px;
    background: #fbbf24;
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}
.pm-rate::after {
    content: "";
    position: absolute;
    left: 32px; right: 10px; top: 50%;
    transform: translateY(-50%);
    height: 10px;
    background: linear-gradient(90deg, #fff, #fff 55%, rgba(255,255,255,0.6) 55%);
    border-radius: 2px;
}

.player-actions {
    flex: 0 0 auto;
    margin: 1% 5% 2%;
    display: flex;
    justify-content: space-around;
    height: 30px;
}
.player-actions span {
    flex: 1;
    max-width: 60px;
    position: relative;
    border-radius: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.09);
}
.player-actions span::after {
    content: "";
    position: absolute;
    inset: 30%;
    background: rgba(255,255,255,0.75);
    border-radius: 2px;
}
.player-actions span:nth-child(1)::after { clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%); }
.player-actions span:nth-child(2)::after { inset: 28%; border-radius: 4px; }
.player-actions span:nth-child(3)::after { clip-path: polygon(50% 0, 60% 40%, 100% 40%, 68% 62%, 80% 100%, 50% 75%, 20% 100%, 32% 62%, 0 40%, 40% 40%); background: none; box-shadow: inset 0 0 0 2px rgba(255,255,255,0.75); }
.player-actions span:nth-child(4)::after { clip-path: polygon(0 0, 100% 0, 80% 40%, 80% 100%, 20% 100%, 20% 40%); background: none; box-shadow: inset 0 0 0 2px rgba(255,255,255,0.75); }

.player-episodes {
    flex: 0 0 auto;
    margin: 2% 5% 3%;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 12%;
}
.player-episodes .ep {
    flex: 0 0 calc((100% - 30px) / 6);
    height: 24px;
    border-radius: 6px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
}
.player-episodes .ep.on {
    background: var(--gradient-brand);
    border-color: transparent;
    box-shadow: 0 4px 12px -4px rgba(217,70,239,0.6);
}
.player-episodes .ep::after {
    content: "";
    position: absolute;
    inset: 30% 30%;
    background: rgba(255,255,255,0.8);
    border-radius: 1px;
}
.player-reco-title {
    flex: 0 0 auto;
    margin: 0 5% 2%;
    height: 14px;
    width: 40%;
    background: linear-gradient(90deg, #fff, #fff 70%, transparent 70%);
    border-radius: 2px;
}
.player-reco {
    flex: 1;
    margin: 0 5% 4%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 15%;
}
.rc {
    flex: 1;
    display: flex;
    gap: 4%;
}
.rc-cover {
    flex: 0 0 26%;
    border-radius: 6px;
    background: linear-gradient(135deg, #a855f7, #f43f5e);
}
.rc:nth-child(2) .rc-cover { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.rc:nth-child(3) .rc-cover { background: linear-gradient(135deg, #f97316, #8b5cf6); }
.rc-meta { flex: 1; position: relative; display: block; }
.rc-meta i {
    display: block;
    position: absolute;
    left: 0; right: 10%;
    height: 40%;
    background: linear-gradient(90deg, rgba(255,255,255,0.7) 80%, transparent 80%);
    border-radius: 2px;
    font-style: normal;
}
.rc-meta i:nth-child(1) { top: 5%; right: 25%; }
.rc-meta i:nth-child(2) { bottom: 15%; height: 30%; opacity: 0.5; right: 45%; }

.shot figcaption {
    position: absolute;
    bottom: 14px; left: 50%;
    transform: translateX(-50%);
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: rgba(10,6,18,0.75);
    backdrop-filter: blur(10px);
    white-space: nowrap;
    z-index: 20;
    box-shadow: 0 4px 14px -4px rgba(0,0,0,0.5);
}

.shot-1 {
    top: 50%; left: 8%;
    transform: translateY(-50%) rotateY(18deg) rotateZ(-6deg) translateZ(-40px);
    z-index: 1;
}
.shot-2 {
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotateY(0deg) rotateZ(2deg) translateZ(0);
    z-index: 3;
}
.shot-3 {
    top: 50%; right: 8%;
    transform: translateY(-50%) rotateY(-18deg) rotateZ(6deg) translateZ(-40px);
    z-index: 2;
}

/* 悬停某张截图：该图原位摆正、放大、前置置顶，其余淡出后退（原位变换，避免鼠标移位闪烁） */
.screenshots.focus-1 .shot-1,
.screenshots.focus-2 .shot-2,
.screenshots.focus-3 .shot-3 {
    z-index: 10;
    opacity: 1;
    filter: none;
    box-shadow: var(--shadow-float), 0 0 60px -8px rgba(217, 70, 239, 0.7), 0 0 0 1px rgba(255,255,255,0.14);
}
.screenshots.focus-1 .shot-1 { transform: translateY(-50%) rotateY(0deg) rotateZ(0deg) scale(1.12) translateZ(80px); }
.screenshots.focus-2 .shot-2 { transform: translate(-50%, -50%) rotateY(0deg) rotateZ(0deg) scale(1.12) translateZ(80px); }
.screenshots.focus-3 .shot-3 { transform: translateY(-50%) rotateY(0deg) rotateZ(0deg) scale(1.12) translateZ(80px); }
/* 非聚焦截图：淡出、模糊、缩小后退（保持原位） */
.screenshots.focus-1 .shot-2,
.screenshots.focus-1 .shot-3,
.screenshots.focus-2 .shot-1,
.screenshots.focus-2 .shot-3,
.screenshots.focus-3 .shot-1,
.screenshots.focus-3 .shot-2 {
    opacity: 0.3;
    filter: blur(2px) brightness(0.6) saturate(0.7);
    z-index: 1;
}
.screenshots.focus-1 .shot-2,
.screenshots.focus-3 .shot-2 {
    transform: translate(-50%, -50%) rotateY(0deg) rotateZ(2deg) scale(0.85) translateZ(-90px);
}
.screenshots.focus-2 .shot-1,
.screenshots.focus-3 .shot-1 {
    transform: translateY(-50%) rotateY(18deg) rotateZ(-6deg) scale(0.85) translateZ(-90px);
}
.screenshots.focus-1 .shot-3,
.screenshots.focus-2 .shot-3 {
    transform: translateY(-50%) rotateY(-18deg) rotateZ(6deg) scale(0.85) translateZ(-90px);
}

/* 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 28px; left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--c-text-3);
    font-size: 12px;
    letter-spacing: 1px;
    transition: opacity 0.4s ease;
}
.mouse {
    width: 24px; height: 38px;
    border: 2px solid var(--c-text-3);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}
.wheel {
    width: 3px; height: 8px;
    background: var(--c-text-3);
    border-radius: 2px;
    animation: wheel 1.8s ease infinite;
}
@keyframes wheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(10px); }
}

/* ---------- 通用 Section ---------- */
.section {
    padding: 110px 0;
    position: relative;
}
.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}
.section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--c-primary-2);
    margin-bottom: 16px;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(217,70,239,0.1);
    border: 1px solid var(--c-border);
}
.section-title {
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    line-height: 1.2;
}
.section-desc {
    font-size: 1.05rem;
    color: var(--c-text-2);
}

/* ---------- 功能特点 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.feature-card {
    padding: 32px 26px;
    border-radius: var(--radius-lg);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(12px);
    transition: all 0.45s var(--ease);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--gradient-brand-soft);
    opacity: 0;
    transition: opacity 0.45s var(--ease);
}
.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--c-border-strong);
    box-shadow: var(--shadow-card), 0 0 30px -10px rgba(217,70,239,0.4);
}
.feature-card:hover::before { opacity: 1; }
.feature-card > * { position: relative; z-index: 1; }
.feature-icon {
    width: 58px; height: 58px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-brand);
    color: #fff;
    margin-bottom: 22px;
    box-shadow: 0 10px 24px -8px rgba(217,70,239,0.55);
    transition: transform 0.45s var(--ease);
}
.feature-card:hover .feature-icon { transform: scale(1.08) rotate(-4deg); }
.feature-title {
    font-size: 1.18rem;
    font-weight: 700;
    margin-bottom: 10px;
}
.feature-desc {
    font-size: 0.94rem;
    color: var(--c-text-2);
    line-height: 1.75;
}

/* ---------- 用户评价 ---------- */
.reviews-summary {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 56px;
}
.summary-score { display: flex; align-items: baseline; gap: 4px; }
.summary-score .score-num {
    font-size: 3.2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}
.summary-score .score-max {
    font-size: 1.3rem;
    color: var(--c-text-3);
    font-weight: 600;
}
.summary-stars { display: flex; gap: 4px; font-size: 22px; }
.summary-text { font-size: 14px; color: var(--c-text-3); }
.star { color: rgba(255,255,255,0.15); }
.star.filled {
    color: #fbbf24;
    text-shadow: 0 0 12px rgba(251, 191, 36, 0.5);
}
.star.half {
    background: linear-gradient(90deg, #fbbf24 50%, rgba(255,255,255,0.15) 50%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.review-card {
    padding: 28px 26px;
    border-radius: var(--radius-lg);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(12px);
    transition: all 0.4s var(--ease);
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.review-card:hover {
    transform: translateY(-6px);
    border-color: var(--c-border-strong);
    box-shadow: var(--shadow-card);
}
.review-stars { display: flex; gap: 3px; font-size: 16px; }
.review-text {
    font-size: 0.97rem;
    color: var(--c-text);
    line-height: 1.8;
    flex: 1;
    font-style: italic;
}
.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
}
.avatar {
    width: 42px; height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    background: var(--gradient-brand);
    font-size: 16px;
}
.author-info { display: flex; flex-direction: column; }
.author-info strong { font-size: 0.95rem; }
.author-info span { font-size: 12px; color: var(--c-text-3); }

/* ---------- 常见问题 ---------- */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-item {
    border-radius: var(--radius);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(12px);
    overflow: hidden;
    transition: all 0.35s var(--ease);
}
.faq-item[open] {
    border-color: var(--c-border-strong);
    box-shadow: 0 12px 30px -15px rgba(217,70,239,0.3);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 26px;
    font-size: 1.02rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    transition: color 0.3s var(--ease);
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question:hover { color: var(--c-primary-2); }
.faq-icon {
    flex-shrink: 0;
    width: 24px; height: 24px;
    position: relative;
    transition: transform 0.35s var(--ease);
}
.faq-icon::before, .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--c-primary-2);
    border-radius: 2px;
    top: 50%; left: 50%;
    transition: all 0.35s var(--ease);
}
.faq-icon::before { width: 14px; height: 2px; transform: translate(-50%, -50%); }
.faq-icon::after { width: 2px; height: 14px; transform: translate(-50%, -50%); }
.faq-item[open] .faq-icon { transform: rotate(180deg); }
.faq-item[open] .faq-icon::after { transform: translate(-50%, -50%) scaleY(0); }
.faq-answer {
    padding: 0 26px 22px;
    color: var(--c-text-2);
    font-size: 0.96rem;
    line-height: 1.85;
    animation: faqSlide 0.4s var(--ease);
}
@keyframes faqSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- 下载区域 ---------- */
.download { padding: 90px 0 110px; }
.download-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    padding: 70px 40px;
    text-align: center;
    background: var(--c-surface);
    border: 1px solid var(--c-border-strong);
    backdrop-filter: blur(14px);
    box-shadow: 0 40px 90px -40px rgba(217,70,239,0.5);
}
.download-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(168,85,247,0.35), transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(251,146,60,0.25), transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(217,70,239,0.2), transparent 60%);
    z-index: 0;
    animation: bgShift 8s ease-in-out infinite alternate;
}
@keyframes bgShift {
    from { transform: scale(1) rotate(0deg); }
    to { transform: scale(1.1) rotate(3deg); }
}
.download-content { position: relative; z-index: 1; }
.download-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--c-accent);
    margin-bottom: 14px;
}
.download-title {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.download-desc {
    font-size: 1.05rem;
    color: var(--c-text-2);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.8;
}
.download-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px 32px;
    margin-bottom: 40px;
    padding: 22px 28px;
    border-radius: var(--radius);
    background: rgba(10,6,18,0.4);
    border: 1px solid var(--c-border);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}
.dm-item { display: flex; flex-direction: column; gap: 4px; align-items: center; }
.dm-label {
    font-size: 11.5px;
    color: var(--c-text-3);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.dm-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--c-text);
}
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 56px;
    border-radius: 999px;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: 0 16px 45px -12px rgba(217,70,239,0.75), 0 0 0 0 rgba(217,70,239,0.4);
    transition: all 0.4s var(--ease);
    position: relative;
    overflow: hidden;
    animation: downloadPulse 2.5s ease-in-out infinite;
}
.btn-download::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.7s var(--ease);
}
.btn-download:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 24px 60px -12px rgba(217,70,239,0.9), 0 0 0 6px rgba(217,70,239,0.12);
}
.btn-download:hover::before { transform: translateX(100%); }
@keyframes downloadPulse {
    0%, 100% { box-shadow: 0 16px 45px -12px rgba(217,70,239,0.75), 0 0 0 0 rgba(217,70,239,0.4); }
    50% { box-shadow: 0 16px 45px -12px rgba(217,70,239,0.75), 0 0 0 14px rgba(217,70,239,0); }
}
.download-tip {
    margin-top: 22px;
    font-size: 13px;
    color: var(--c-text-3);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* ---------- 页脚 ---------- */
.footer {
    border-top: 1px solid var(--c-border);
    background: rgba(10,6,18,0.6);
    backdrop-filter: blur(10px);
    padding: 56px 0 30px;
}
.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--c-border);
}
.footer-brand { max-width: 360px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-tagline {
    color: var(--c-text-2);
    font-size: 0.95rem;
    line-height: 1.7;
}
.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
}
.footer-nav a {
    color: var(--c-text-2);
    font-size: 0.95rem;
    transition: color 0.3s var(--ease);
}
.footer-nav a:hover { color: var(--c-primary-2); }
.footer-bottom {
    padding-top: 24px;
    text-align: center;
    color: var(--c-text-3);
    font-size: 13px;
    line-height: 1.9;
}
.footer-disclaimer { margin-top: 4px; opacity: 0.7; }

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    right: 28px; bottom: 28px;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--gradient-brand);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 28px -8px rgba(217,70,239,0.7);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s var(--ease);
    z-index: 90;
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-4px) scale(1.08); }

/* ---------- 滚动揭示动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   响应式适配
   ========================================================================== */
@media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .reviews-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-container { grid-template-columns: 1fr; gap: 50px; }
    .hero-content { max-width: 100%; text-align: center; margin: 0 auto; }
    .hero-badge, .hero-tags { justify-content: center; }
    .hero-meta { justify-content: center; }
    .hero-actions { justify-content: center; }
    .hero-visual { min-height: 480px; order: -1; }
    .screenshots { height: 460px; }
    .shot { width: 220px; }
}

@media (max-width: 768px) {
    :root { --nav-h: 64px; }
    .nav-menu {
        position: fixed;
        top: var(--nav-h); right: 0;
        flex-direction: column;
        align-items: stretch;
        width: 280px;
        max-width: 85vw;
        height: calc(100vh - var(--nav-h));
        padding: 24px 20px;
        gap: 6px;
        background: rgba(10,6,18,0.96);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--c-border);
        transform: translateX(110%);
        transition: transform 0.45s var(--ease);
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-link { padding: 14px 18px; font-size: 15px; }
    .nav-cta { margin-left: 0; margin-top: 8px; text-align: center; }
    .nav-toggle { display: flex; }

    .section { padding: 80px 0; }
    .section-head { margin-bottom: 48px; }
    .feature-grid { grid-template-columns: 1fr; gap: 16px; }
    .feature-card { padding: 28px 24px; }
    .reviews-grid { grid-template-columns: 1fr; gap: 16px; }
    .review-card { padding: 24px 22px; }

    .hero { padding: calc(var(--nav-h) + 30px) 0 60px; min-height: auto; }
    .hero-visual { min-height: 420px; }
    .screenshots { height: 420px; }
    .shot { width: 180px; border-radius: 22px; }
    .shot-1 { left: 4%; }
    .shot-3 { right: 4%; }
    .glow-ring { width: 320px; height: 320px; }

    .hero-meta { gap: 14px 20px; padding: 16px 18px; }
    .meta-divider:nth-child(even) { display: none; }

    .download-card { padding: 50px 24px; }
    .download-meta { gap: 12px 22px; padding: 18px 20px; }
    .btn-download { padding: 18px 40px; font-size: 1.05rem; }

    .footer-container { flex-direction: column; gap: 28px; }
    .back-to-top { right: 18px; bottom: 18px; width: 44px; height: 44px; }
}

@media (max-width: 480px) {
    .container { padding: 0 18px; }
    .hero-title { font-size: 2.3rem; }
    .hero-meta { flex-direction: column; align-items: flex-start; gap: 12px; }
    .meta-divider { display: none !important; }
    .hero-actions .btn { width: 100%; }
    .screenshots { height: 380px; }
    .shot { width: 150px; border-radius: 18px; }
    .shot figcaption { font-size: 11px; padding: 4px 10px; }
    .section { padding: 64px 0; }
    .section-title { font-size: 1.7rem; }
    .download-meta { flex-direction: column; gap: 14px; }
    .dm-item { flex-direction: row; gap: 10px; }
}

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
    html { scroll-behavior: auto; }
}