/* ==========================================================
   欢太工具箱 · 介绍页样式
   配色取自 App Logo：珊瑚红 / 砖红渐变
   ========================================================== */

:root {
    --primary: #e6453c;
    --primary-deep: #c52f28;
    --primary-dark: #a8251f;
    --primary-light: #f46b5e;
    --primary-soft: #fdeeea;
    --accent: #ff8a4c;
    --gradient: linear-gradient(135deg, #f65f52 0%, #e43d35 55%, #cc2f28 100%);
    --gradient-soft: linear-gradient(135deg, #ff8a7a 0%, #f0574c 100%);

    --ink: #2e2624;
    --ink-2: #5c4f4c;
    --muted: #9a8b87;
    --line: #f1e2de;

    --bg: #fffaf8;
    --bg-alt: #fdf1ee;
    --card: #ffffff;

    --shadow-sm: 0 4px 14px rgba(210, 60, 50, .08);
    --shadow-md: 0 14px 38px rgba(210, 60, 50, .14);
    --shadow-lg: 0 26px 70px rgba(190, 45, 38, .22);

    --radius: 18px;
    --radius-lg: 28px;
    --header-h: 72px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

.container { width: min(1180px, 92%); margin: 0 auto; }

.text-gradient {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ---------- 空 src 图片的占位底色（填入地址后自动覆盖） ---------- */
.brand-logo,
.hero-logo,
.advantage-logo,
.download-logo,
.footer-logo,
.shot img {
    background: var(--gradient-soft);
    background-color: #f3c9c3;
}

/* ================= 顶部导航 ================= */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    height: var(--header-h);
    z-index: 100;
    background: rgba(255, 250, 248, .72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: box-shadow .3s ease, background .3s ease, border-color .3s ease;
}
.site-header.scrolled {
    background: rgba(255, 255, 255, .92);
    border-bottom-color: var(--line);
    box-shadow: 0 6px 24px rgba(180, 70, 60, .08);
}
.nav-inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
    width: 42px; height: 42px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}
.brand-name {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: .5px;
}

.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--ink-2);
    transition: color .25s, background .25s;
}
.nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.nav-download {
    color: #fff;
    background: var(--gradient);
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(228, 61, 53, .32);
    margin-left: 8px;
}
.nav-link.nav-download:hover { color: #fff; transform: translateY(-1px); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav-toggle span {
    width: 24px; height: 2.5px;
    border-radius: 3px;
    background: var(--ink);
    transition: transform .3s, opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ================= 首屏 ================= */
.hero {
    position: relative;
    padding: calc(var(--header-h) + 70px) 0 90px;
    overflow: hidden;
    background:
        radial-gradient(1100px 520px at 85% -10%, #ffe7e1 0%, rgba(255, 231, 225, 0) 60%),
        radial-gradient(900px 480px at -10% 20%, #fff2ec 0%, rgba(255, 242, 236, 0) 55%),
        var(--bg);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: .5;
}
.blob-1 { width: 340px; height: 340px; right: -80px; top: 40px; background: #ffb4a8; }
.blob-2 { width: 260px; height: 260px; left: -90px; bottom: 0; background: #ffd2c2; opacity: .45; }
.blob-3 { width: 180px; height: 180px; right: 32%; bottom: -70px; background: #ff9e90; opacity: .35; }

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 56px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 7px 18px 7px 8px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    font-size: 13.5px;
    font-weight: 600;
    color: var(--primary-deep);
}
.hero-logo { width: 34px; height: 34px; border-radius: 9px; }

.hero-title {
    margin: 24px 0 18px;
    font-size: clamp(34px, 4.6vw, 54px);
    line-height: 1.22;
    font-weight: 900;
    letter-spacing: 1px;
}
.hero-desc {
    font-size: 16.5px;
    color: var(--ink-2);
    max-width: 560px;
}
.hero-desc strong { color: var(--primary-deep); }

.hero-meta {
    display: flex;
    align-items: center;
    gap: 22px;
    margin: 30px 0 34px;
    padding: 18px 26px;
    background: rgba(255, 255, 255, .8);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    width: fit-content;
}
.meta-item { display: flex; flex-direction: column; }
.meta-label { font-size: 12.5px; color: var(--muted); letter-spacing: 1px; }
.meta-value { font-size: 19px; font-weight: 800; color: var(--primary-deep); }
.meta-divider { width: 1px; height: 34px; background: var(--line); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
    white-space: nowrap;
}
.btn-lg { padding: 15px 34px; font-size: 16.5px; }
.btn-primary {
    color: #fff;
    background: var(--gradient);
    box-shadow: 0 12px 28px rgba(228, 61, 53, .38);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 36px rgba(228, 61, 53, .46); }
.btn-ghost {
    color: var(--primary-deep);
    background: #fff;
    border: 1.5px solid #f3b8b1;
}
.btn-ghost:hover { background: var(--primary-soft); transform: translateY(-3px); }

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
    margin-top: 26px;
    color: var(--muted);
    font-size: 14px;
}
.hero-points li { position: relative; padding-left: 20px; }
.hero-points li::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--gradient);
    transform: translateY(-50%);
}

/* ---------- 叠层截图 ---------- */
.hero-shot { display: flex; justify-content: center; }
.shot-stage {
    --shot-gap: 108px;
    position: relative;
    width: 380px;
    max-width: 100%;
    height: 520px;
}
.shot {
    position: absolute;
    top: 0;
    left: 50%;
    width: 250px;
    height: 480px;
    border-radius: 34px;
    background: #fff;
    border: 9px solid #3a2b29;
    box-shadow: 0 30px 60px rgba(120, 40, 34, .28);
    overflow: hidden;
    cursor: pointer;
    transition: transform .5s cubic-bezier(.22, .8, .3, 1), box-shadow .5s ease, opacity .5s ease;
    opacity: .82;
}
.shot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}
.shot figcaption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 34px 16px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    text-align: center;
    background: linear-gradient(transparent, rgba(160, 38, 32, .78));
    opacity: 0;
    transform: translateY(8px);
    transition: opacity .4s, transform .4s;
}
.shot-1 { transform: translateX(calc(-50% - var(--shot-gap))) rotate(-9deg) translateY(18px) scale(.92); z-index: 1; }
.shot-2 { transform: translateX(-50%) scale(1); z-index: 3; opacity: 1; }
.shot-3 { transform: translateX(calc(-50% + var(--shot-gap))) rotate(9deg) translateY(18px) scale(.92); z-index: 2; }

.shot.is-active,
.shot:hover {
    opacity: 1;
    z-index: 10;
    transform: translateX(-50%) translateY(-16px) scale(1.07) rotate(0deg);
    box-shadow: 0 40px 80px rgba(190, 45, 38, .38);
}
.shot.is-active figcaption, .shot:hover figcaption { opacity: 1; transform: translateY(0); }

.shot-dots {
    position: absolute;
    left: 0; right: 0;
    bottom: 0;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 20;
}
.dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: #e7b9b3;
    transition: width .3s, background .3s;
}
.dot.is-active { width: 26px; border-radius: 999px; background: var(--gradient); }
.shot-tip {
    position: absolute;
    left: 0; right: 0;
    bottom: -34px;
    text-align: center;
    font-size: 13px;
    color: var(--muted);
}

/* ================= 数据条 ================= */
.stats {
    background: var(--gradient);
    padding: 40px 0;
    position: relative;
}
.stats-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}
.stat-item { color: #fff; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.stat-num { font-size: 40px; font-weight: 900; line-height: 1.1; }
.stat-suffix { color: rgba(255, 255, 255, .9); font-weight: 800; font-size: 17px; margin-top: -4px; }
.stat-label { font-size: 14px; opacity: .92; margin-top: 6px; }

/* ================= 通用 Section ================= */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 58px; }
.section-head.left { text-align: left; margin: 0 0 34px; }
.section-tag {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 16px;
}
.section-title { font-size: clamp(27px, 3.4vw, 38px); font-weight: 900; line-height: 1.3; }
.section-sub { margin-top: 14px; color: var(--muted); font-size: 16px; }

/* ---------- 功能卡片 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 30px 26px;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: #f6c9c2;
}
.feature-icon {
    width: 54px; height: 54px;
    border-radius: 15px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px;
}
.feature-icon svg { width: 26px; height: 26px; }
.icon-red    { background: #fde6e2; color: #e0443a; }
.icon-orange { background: #ffefe4; color: #f07732; }
.icon-rose   { background: #ffe9e7; color: #d94f63; }
.icon-amber  { background: #fff2dc; color: #dd8a1e; }
.icon-pink   { background: #fde8ef; color: #d6467c; }
.icon-coral  { background: #ffede9; color: #e85f4f; }

.feature-card h3 { font-size: 18.5px; font-weight: 800; margin-bottom: 9px; }
.feature-card p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 核心优势 ---------- */
.advantage-inner {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 64px;
    align-items: center;
}
.advantage-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 380px;
}
.advantage-logo {
    width: 200px; height: 200px;
    border-radius: 48px;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 2;
}
.advantage-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px dashed rgba(230, 69, 60, .35);
}
.ring-1 { width: 300px; height: 300px; animation: spin 26s linear infinite; }
.ring-2 { width: 380px; height: 380px; border-style: solid; border-color: rgba(230, 69, 60, .12); }
@keyframes spin { to { transform: rotate(360deg); } }

.advantage-list { display: flex; flex-direction: column; gap: 22px; }
.advantage-list li { display: flex; gap: 16px; align-items: flex-start; }
.check-badge {
    flex: 0 0 38px;
    width: 38px; height: 38px;
    border-radius: 12px;
    background: var(--gradient);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 18px rgba(228, 61, 53, .3);
}
.check-badge svg { width: 19px; height: 19px; }
.advantage-list h4 { font-size: 17px; font-weight: 800; margin-bottom: 3px; }
.advantage-list p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 用户评价 ---------- */
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.review-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: transform .3s, box-shadow .3s;
}
.review-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.review-stars { color: #ffb02e; font-size: 17px; letter-spacing: 3px; }
.review-text { font-size: 14.5px; color: var(--ink-2); flex: 1; }
.review-user { display: flex; align-items: center; gap: 12px; }
.review-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    flex: 0 0 44px;
    text-shadow: 0 1px 2px rgba(120, 40, 30, .18);
}
.avatar-1 { background: linear-gradient(135deg, #f6604f, #d8382e); }
.avatar-2 { background: linear-gradient(135deg, #ff9a52, #ef7a2e); }
.avatar-3 { background: linear-gradient(135deg, #f4688c, #d63f68); }
.avatar-4 { background: linear-gradient(135deg, #f0833f, #d95f24); }
.avatar-5 { background: linear-gradient(135deg, #ef5f74, #c8344c); }
.avatar-6 { background: linear-gradient(135deg, #f4a24a, #e07c22); }
.review-user strong { display: block; font-size: 15px; }
.review-user > div > span { font-size: 12.5px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 860px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: box-shadow .3s, border-color .3s;
}
.faq-item.open { box-shadow: var(--shadow-sm); border-color: #f6c9c2; }
.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 21px 26px;
    font-size: 16.5px;
    font-weight: 700;
    color: var(--ink);
    text-align: left;
}
.faq-icon {
    position: relative;
    flex: 0 0 22px;
    width: 22px; height: 22px;
}
.faq-icon::before, .faq-icon::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    background: var(--primary);
    border-radius: 2px;
    transform: translate(-50%, -50%);
    transition: transform .3s;
}
.faq-icon::before { width: 15px; height: 2.5px; }
.faq-icon::after { width: 2.5px; height: 15px; }
.faq-item.open .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
}
.faq-a p { padding: 0 26px 22px; color: var(--ink-2); font-size: 15px; }

/* ================= 下载区域 ================= */
.download {
    position: relative;
    padding: 110px 0;
    overflow: hidden;
    background: var(--gradient);
}
.download-bg { position: absolute; inset: 0; pointer-events: none; }
.blob-dl-1 { width: 380px; height: 380px; left: -110px; top: -120px; background: rgba(255, 255, 255, .16); }
.blob-dl-2 { width: 300px; height: 300px; right: -80px; bottom: -110px; background: rgba(255, 180, 150, .4); }

.download-inner {
    position: relative;
    text-align: center;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.download-logo {
    width: 96px; height: 96px;
    border-radius: 26px;
    box-shadow: 0 18px 40px rgba(120, 25, 20, .35);
    border: 3px solid rgba(255, 255, 255, .55);
    background: linear-gradient(135deg, #ffd0c8, #ff8d80);
    margin-bottom: 24px;
}
.download-title { font-size: clamp(28px, 4vw, 42px); font-weight: 900; letter-spacing: 1px; }
.download-sub { margin-top: 12px; font-size: 16.5px; opacity: .94; }

.download-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 28px 0 36px;
}
.dl-chip {
    padding: 9px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .35);
    font-size: 14px;
    backdrop-filter: blur(6px);
}
.dl-chip strong { font-weight: 800; }

.btn-download {
    padding: 19px 58px;
    font-size: 19px;
    color: var(--primary-deep);
    background: #fff;
    border-radius: 999px;
    box-shadow: 0 18px 44px rgba(120, 25, 20, .32);
    animation: pulse 2.2s ease-in-out infinite;
}
.btn-download:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 26px 54px rgba(120, 25, 20, .42);
    animation-play-state: paused;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 18px 44px rgba(120, 25, 20, .32); }
    50% { box-shadow: 0 18px 44px rgba(120, 25, 20, .32), 0 0 0 16px rgba(255, 255, 255, .12); }
}
.download-tips { margin-top: 22px; font-size: 13.5px; opacity: .85; }

/* ================= 页脚 ================= */
.site-footer { background: #241b1a; color: #cfc2bf; padding-top: 54px; }
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    padding-bottom: 34px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-logo { width: 46px; height: 46px; border-radius: 12px; }
.footer-brand strong { display: block; color: #fff; font-size: 17px; }
.footer-brand span { font-size: 13px; color: #a99a97; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { font-size: 14.5px; transition: color .25s; }
.footer-nav a:hover { color: #ff8d80; }
.footer-copy { padding: 22px 0 28px; text-align: center; }
.footer-copy p { font-size: 12.5px; color: #867673; }

/* ---------- 返回顶部 ---------- */
.back-top {
    position: fixed;
    right: 26px; bottom: 26px;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 26px rgba(228, 61, 53, .4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity .3s, transform .3s, visibility .3s;
    z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top svg { width: 22px; height: 22px; }
.back-top:hover { transform: translateY(-3px); }

/* ================= 滚动出现动画 ================= */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity .7s ease, transform .7s cubic-bezier(.22, .8, .3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ==========================================================
   响应式
   ========================================================== */
@media (max-width: 1080px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .review-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
    .hero { padding-top: calc(var(--header-h) + 48px); padding-bottom: 110px; }
    .hero-inner { grid-template-columns: 1fr; gap: 70px; }
    .hero-text { text-align: center; }
    .hero-desc { margin: 0 auto; }
    .hero-meta { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-points { justify-content: center; }
    .hero-shot { order: -1; }

    .advantage-inner { grid-template-columns: 1fr; gap: 50px; }
    .advantage-visual { min-height: 320px; }
    .section-head.left { text-align: center; }
    .advantage-list { max-width: 560px; margin: 0 auto; }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 16px 6%;
        background: rgba(255, 255, 255, .97);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 18px 30px rgba(120, 50, 40, .08);
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: transform .3s, opacity .3s, visibility .3s;
    }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-link { padding: 13px 18px; border-radius: 12px; font-size: 16px; }
    .nav-link.nav-download { margin-left: 0; text-align: center; }
    .nav-toggle { display: flex; }

    .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 30px 16px; }
    .section { padding: 74px 0; }
}

@media (max-width: 620px) {
    .feature-grid { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }

    .hero-meta {
        width: 100%;
        flex-wrap: wrap;
        gap: 14px 20px;
        padding: 18px 20px;
    }
    .meta-item:nth-of-type(3) { flex-direction: row; gap: 8px; align-items: baseline; }
    .meta-divider { display: none; }

    .shot-stage { width: 320px; height: 470px; --shot-gap: 58px; }
    .shot { width: 215px; height: 420px; border-width: 7px; border-radius: 28px; }

    .btn-lg { padding: 14px 26px; font-size: 15.5px; width: 100%; }
    .hero-actions { width: 100%; }
    .btn-download { padding: 17px 42px; font-size: 17px; }

    .footer-inner { flex-direction: column; align-items: flex-start; }
    .download { padding: 84px 0; }
}

@media (max-width: 380px) {
    .shot-stage { width: 280px; height: 430px; --shot-gap: 46px; }
    .shot { width: 190px; height: 380px; }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
}