/* =====================================================
   年轮帧 · 官方样式表
   配色：
     - 电影黑 #141414
     - 香槟金 #B58A4A
     - 暖白色 #F6F1E9
   ===================================================== */

:root {
    --c-black:      #141414;
    --c-black-2:    #0d0d0d;
    --c-black-3:    #1a1a1a;
    --c-gold:       #B58A4A;
    --c-gold-soft:  #d6b279;
    --c-cream:      #F6F1E9;
    --c-cream-dim:  #c8c0b3;
    --c-line:       rgba(181, 138, 74, 0.25);

    --f-serif-en:   'Cormorant Garamond', 'Noto Serif SC', serif;
    --f-serif-cn:   'Noto Serif SC', 'Cormorant Garamond', serif;

    --max-w:        1200px;
    --pad-x:        clamp(20px, 5vw, 64px);
    --section-py:   clamp(80px, 12vw, 160px);

    --t:            cubic-bezier(.22,.61,.36,1);
}

/* ----- 基础重置 ----- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    background: var(--c-black);
    color: var(--c-cream);
    font-family: var(--f-serif-cn);
    font-weight: 300;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

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

/* 选区颜色 */
::selection { background: var(--c-gold); color: var(--c-black); }

/* 滚动条（细） */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--c-black); }
::-webkit-scrollbar-thumb { background: var(--c-gold); border-radius: 4px; }

/* ----- 通用容器 ----- */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--pad-x);
}

/* =====================================================
   顶部导航
   ===================================================== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 18px 0;
    background: rgba(20, 20, 20, 0.0);
    transition: background .4s var(--t), padding .4s var(--t), border-color .4s var(--t);
    border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
    background: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 12px 0;
    border-bottom-color: var(--c-line);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.1;
}
.brand-mark {
    font-family: var(--f-serif-cn);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--c-cream);
}
.brand-sub {
    font-family: var(--f-serif-en);
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-top: 4px;
}
/* Logo 图片（V1.2.2 品牌资产适配 · 替换原文字版） */
.brand-logo {
    height: 40px;
    width: auto;
    display: block;
    transition: opacity .3s var(--t);
}
.brand:hover .brand-logo { opacity: .85; }

.nav {
    display: flex;
    align-items: center;
    gap: 36px;
}
.nav-link {
    position: relative;
    font-size: 15px;
    color: var(--c-cream);
    padding: 6px 0;
    transition: color .3s var(--t);
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--c-gold);
    transition: width .3s var(--t), left .3s var(--t);
}
.nav-link:hover { color: var(--c-gold-soft); }
.nav-link:hover::after { width: 100%; left: 0; }

/* 移动端汉堡按钮 */
.nav-toggle {
    display: none;
    width: 32px; height: 32px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
}
.nav-toggle span {
    display: block;
    width: 22px; height: 1px;
    background: var(--c-cream);
    transition: transform .3s var(--t), opacity .3s var(--t);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================
   Hero 主视觉
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 120px;
    padding-bottom: 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(181,138,74,0.18), transparent 55%),
        radial-gradient(ellipse at 80% 70%, rgba(181,138,74,0.10), transparent 55%),
        linear-gradient(180deg, #0a0a0a 0%, #141414 50%, #0d0d0d 100%);
    z-index: -2;
}

/* 银幕暖光：模拟「三代家庭在客厅共同观影」的情绪视觉 */
.hero-screen {
    position: absolute;
    left: 50%;
    top: 42%;
    transform: translate(-50%, -50%);
    width: min(78vw, 980px);
    height: min(46vw, 560px);
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 50% 45%,
            rgba(214, 178, 121, 0.30) 0%,
            rgba(181, 138, 74, 0.16) 35%,
            rgba(181, 138, 74, 0.05) 60%,
            transparent 78%);
    filter: blur(6px);
    animation: screenBreathe 7s ease-in-out infinite;
}
@keyframes screenBreathe {
    0%, 100% { opacity: .82; }
    50%      { opacity: 1; }
}

/* 电影画幅暗角：截图质感 */
.hero-vignette {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 50% 50%, transparent 40%, rgba(0,0,0,0.58) 100%),
        linear-gradient(180deg, rgba(0,0,0,0.45) 0%, transparent 20%, transparent 80%, rgba(0,0,0,0.55) 100%);
}

.hero-grain {
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: .35;
    pointer-events: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='matrix' values='0 0 0 0 0.7  0 0 0 0 0.54  0 0 0 0 0.29  0 0 0 0.08 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.hero-inner {
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-eyebrow {
    font-family: var(--f-serif-en);
    font-size: 12px;
    letter-spacing: 6px;
    color: var(--c-gold);
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeUp 1.2s var(--t) .2s forwards;
}

.hero-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(40px, 7vw, 92px);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: 4px;
    color: var(--c-cream);
    margin-bottom: 28px;
    opacity: 0;
    /* V1.3.8：首页主标题 0.8s 柔和渐入 */
    animation: fadeUp .8s var(--t) .5s forwards;
}
.hero-title br { display: block; }

.hero-subtitle {
    font-family: var(--f-serif-cn);
    font-size: clamp(15px, 1.6vw, 19px);
    color: var(--c-cream-dim);
    max-width: 640px;
    margin-bottom: 48px;
    opacity: 0;
    animation: fadeUp 1.2s var(--t) .8s forwards;
}

.hero-statement {
    font-family: var(--f-serif-cn);
    font-size: clamp(13.5px, 1.4vw, 15.5px);
    color: var(--c-cream-dim);
    line-height: 1.9;
    letter-spacing: 1px;
    max-width: 600px;
    margin: -16px 0 40px;
    padding: 4px 0 4px 18px;
    border-left: 1px solid var(--c-gold);
    opacity: 0;
    animation: fadeUp 1.2s var(--t) .95s forwards;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    opacity: 0;
    animation: fadeUp 1.2s var(--t) 1.1s forwards;
}

/* 核心产品入口卡片 */
.hero-product-entry {
    position: relative;
    display: block;
    max-width: 680px;
    margin-top: 44px;
    padding: 24px 64px 24px 28px;
    border: 1px solid var(--c-line);
    border-left: 2px solid var(--c-gold);
    background: linear-gradient(90deg, rgba(181,138,74,0.10) 0%, rgba(181,138,74,0.02) 60%, transparent 100%);
    transition: border-color .4s var(--t), background .4s var(--t), transform .4s var(--t);
    opacity: 0;
    animation: fadeUp 1.2s var(--t) 1.25s forwards;
}
.hero-product-entry:hover {
    border-color: var(--c-gold);
    background: linear-gradient(90deg, rgba(181,138,74,0.18) 0%, rgba(181,138,74,0.04) 60%, transparent 100%);
    transform: translateX(4px);
}

.hpe-label {
    display: block;
    font-family: var(--f-serif-en);
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-bottom: 10px;
}
.hpe-title {
    display: block;
    font-family: var(--f-serif-cn);
    font-size: clamp(19px, 2vw, 24px);
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin-bottom: 8px;
}
.hpe-sub {
    display: block;
    font-size: 13.5px;
    color: var(--c-cream-dim);
    letter-spacing: 1px;
}
.hpe-arrow {
    position: absolute;
    right: 28px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--f-serif-en);
    font-size: 22px;
    color: var(--c-gold);
    transition: transform .4s var(--t);
}
.hero-product-entry:hover .hpe-arrow {
    transform: translateY(-50%) translateX(6px);
}

.hero-meta {
    position: absolute;
    right: 0;
    bottom: -120px;
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--c-gold);
    font-family: var(--f-serif-en);
    font-size: 11px;
    letter-spacing: 4px;
    opacity: 0;
    animation: fadeUp 1.2s var(--t) 1.4s forwards;
}
.meta-line {
    display: block;
    width: 60px;
    height: 1px;
    background: var(--c-gold);
}

/* 通用按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    font-family: var(--f-serif-cn);
    font-size: 15px;
    letter-spacing: 3px;
    border: 1px solid var(--c-gold);
    color: var(--c-cream);
    background: transparent;
    transition: background .35s var(--t), color .35s var(--t), transform .35s var(--t);
}
.btn-primary {
    background: var(--c-gold);
    color: var(--c-black);
}
.btn-primary:hover {
    background: var(--c-gold-soft);
    color: var(--c-black);
    transform: translateY(-2px);
}
.btn-ghost:hover {
    background: rgba(181, 138, 74, 0.12);
    color: var(--c-gold-soft);
    transform: translateY(-2px);
}
.btn-block { width: 100%; }

/* =====================================================
   通用 section
   ===================================================== */
.section {
    position: relative;
    padding: var(--section-py) 0;
}

.section-head {
    max-width: 760px;
    margin: 0 auto 72px;
    text-align: center;
}

.section-eyebrow {
    font-family: var(--f-serif-en);
    font-size: 12px;
    letter-spacing: 5px;
    color: var(--c-gold);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(28px, 4.2vw, 48px);
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: 2px;
    color: var(--c-cream);
    margin-bottom: 20px;
}
.section-title br { display: block; }

.section-desc {
    font-size: 15px;
    color: var(--c-cream-dim);
    letter-spacing: 1px;
}

/* =====================================================
   首页情感视觉入口
   ===================================================== */
.section-emotion {
    background: linear-gradient(180deg, #141414 0%, #0d0d0d 100%);
}

.emotion-frame {
    position: relative;
    max-width: 1080px;
    margin: 0 auto;
    padding: 12px;
    border: 1px solid var(--c-line);
    background: rgba(181, 138, 74, 0.03);
}
.emotion-frame::before,
.emotion-frame::after {
    content: "";
    position: absolute;
    width: 22px; height: 22px;
    border: 1px solid var(--c-gold);
    z-index: 3;
}
.emotion-frame::before {
    top: -1px; left: -1px;
    border-right: none; border-bottom: none;
}
.emotion-frame::after {
    bottom: -1px; right: -1px;
    border-left: none; border-top: none;
}

.emotion-visual {
    position: relative;
    aspect-ratio: 21 / 9;
    overflow: hidden;
    /* 替换为真实家庭照片时，在此 background 中增加 url("assets/your-photo.jpg") */
    background:
        radial-gradient(ellipse at 50% 58%, rgba(214,178,121,0.16) 0%, rgba(181,138,74,0.07) 38%, transparent 66%),
        linear-gradient(180deg, #0b0b0b 0%, #16130f 55%, #0a0a0a 100%);
}

.emotion-glow {
    position: absolute;
    left: 50%; top: 58%;
    transform: translate(-50%, -50%);
    width: 46%; height: 64%;
    background: radial-gradient(ellipse, rgba(233,200,150,0.32) 0%, rgba(181,138,74,0.12) 45%, transparent 72%);
    filter: blur(18px);
    animation: screenBreathe 7s ease-in-out infinite;
}

.emotion-bokeh {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 26%, rgba(214,178,121,0.16), transparent 22%),
        radial-gradient(circle at 86% 32%, rgba(214,178,121,0.12), transparent 20%),
        radial-gradient(circle at 30% 82%, rgba(181,138,74,0.10), transparent 24%);
    filter: blur(2px);
}

.emotion-bars {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(0,0,0,0.72) 0%, transparent 15%, transparent 85%, rgba(0,0,0,0.72) 100%);
}

.emotion-caption {
    padding: 40px 8px 16px;
    text-align: center;
}

.emotion-eyebrow {
    font-family: var(--f-serif-en);
    font-size: 11px;
    letter-spacing: 5px;
    color: var(--c-gold);
    margin-bottom: 16px;
}

.emotion-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(24px, 3.4vw, 38px);
    font-weight: 500;
    line-height: 1.45;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin-bottom: 18px;
}
.emotion-title br { display: block; }

.emotion-desc {
    font-size: 15px;
    color: var(--c-cream-dim);
    line-height: 1.9;
    letter-spacing: 1px;
    max-width: 680px;
    margin: 0 auto;
}

/* =====================================================
   电影作品
   ===================================================== */
.section-works {
    background: linear-gradient(180deg, #0d0d0d 0%, #141414 100%);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.works-grid--3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.work-card {
    cursor: default;
    transition: transform .5s var(--t);
}
.work-card:hover { transform: translateY(-6px); }

.work-poster {
    position: relative;
    aspect-ratio: 3 / 4;
    background: #000;
    overflow: hidden;
    border: 1px solid var(--c-line);
    margin-bottom: 18px;
}
/* V1.3.3 横版海报：家庭成长电影为 16:9 横图，竖版容器会裁掉两侧人物与胶片叙事弧，单独放宽 */
.work-poster--wide { aspect-ratio: 16 / 9; }
/* V1.3.4 竖版 2:3 海报：梦想电影原图为 2:3 竖版，避免 3:4 容器上下裁切人物 */
.work-poster--2x3 { aspect-ratio: 2 / 3; }
.work-poster::before {
    content: "";
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(181, 138, 74, 0.45);
    pointer-events: none;
    z-index: 2;
}
.work-poster::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at center, rgba(181,138,74,0.15), transparent 60%),
        linear-gradient(180deg, #1c1c1c 0%, #0a0a0a 100%);
    z-index: 0;
}

.poster-frame {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 24px;
    color: var(--c-cream-dim);
    font-family: var(--f-serif-en);
}
.poster-tag {
    font-size: 11px;
    letter-spacing: 5px;
    color: var(--c-gold);
    margin-bottom: 18px;
}
.poster-year {
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--c-cream-dim);
    margin-bottom: 22px;
}
.poster-title {
    font-family: var(--f-serif-cn);
    font-size: 22px;
    letter-spacing: 6px;
    color: var(--c-cream);
    margin-bottom: 16px;
}
.poster-sub {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--c-cream-dim);
    opacity: .75;
}

.work-info h3 {
    font-family: var(--f-serif-cn);
    font-size: 17px;
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--c-cream);
    margin-bottom: 6px;
}
.work-info p {
    font-size: 13px;
    color: var(--c-cream-dim);
    letter-spacing: 1px;
}

/* =====================================================
   不只是保存，而是重新创作
   ===================================================== */
.section-recreate {
    background: var(--c-black);
}

.recreate-wrap {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.recreate-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(30px, 4.6vw, 52px);
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: 4px;
    color: var(--c-cream);
    margin: 16px 0 32px;
}
.recreate-title br { display: block; }

.recreate-text {
    font-size: 16px;
    color: var(--c-cream-dim);
    line-height: 2;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

/* =====================================================
   核心产品：孩子的第一部人生电影
   ===================================================== */
.section-firstfilm {
    background: var(--c-black);
    position: relative;
}
.section-firstfilm::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 50% 0%, rgba(181,138,74,0.10), transparent 55%);
}

.firstfilm-intro {
    max-width: 720px;
    margin: -40px auto 56px;
    text-align: center;
    font-size: 15.5px;
    line-height: 1.9;
    letter-spacing: 1px;
    color: var(--c-cream);
    position: relative;
}

.films-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
}

.film-card {
    position: relative;
    padding: 56px 32px 48px;
    background: var(--c-black-3);
    border: 1px solid var(--c-line);
    text-align: center;
    overflow: hidden;
    transition: transform .5s var(--t), border-color .5s var(--t), background .5s var(--t);
}
.film-card::before {
    content: "";
    position: absolute;
    top: -40%;
    left: 50%;
    transform: translateX(-50%);
    width: 220px; height: 220px;
    background: radial-gradient(circle, rgba(181,138,74,0.22), transparent 70%);
    pointer-events: none;
    opacity: .8;
    transition: opacity .5s var(--t);
}
.film-card:hover {
    transform: translateY(-6px);
    border-color: var(--c-gold);
    background: #1f1f1f;
}
.film-card:hover::before { opacity: 1; }

.film-num {
    display: block;
    font-family: var(--f-serif-en);
    font-size: 13px;
    letter-spacing: 5px;
    color: var(--c-gold);
    margin-bottom: 24px;
    position: relative;
}
.film-title {
    font-family: var(--f-serif-cn);
    font-size: 26px;
    font-weight: 500;
    letter-spacing: 5px;
    color: var(--c-cream);
    margin-bottom: 16px;
    position: relative;
}
.film-desc {
    font-size: 14px;
    color: var(--c-cream-dim);
    line-height: 1.85;
    letter-spacing: 1px;
    position: relative;
}

.firstfilm-note {
    margin-top: 48px;
    text-align: center;
    font-size: 13.5px;
    letter-spacing: 2px;
    color: var(--c-gold-soft);
    position: relative;
}

/* =====================================================
   成长电影体系
   ===================================================== */
.section-growth {
    background: linear-gradient(180deg, #0d0d0d 0%, #141414 100%);
}

.growth-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.growth-item {
    position: relative;
    padding: 40px 20px 36px;
    border: 1px solid var(--c-line);
    text-align: center;
    background: var(--c-black-3);
    transition: transform .5s var(--t), border-color .5s var(--t), background .5s var(--t);
}
.growth-item:hover {
    transform: translateY(-4px);
    border-color: var(--c-gold);
    background: #1f1f1f;
}
.growth-item::after {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 28px; height: 1px;
    background: var(--c-gold);
}

.growth-num {
    display: block;
    font-family: var(--f-serif-en);
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-bottom: 20px;
}
.growth-title {
    font-family: var(--f-serif-cn);
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 4px;
    color: var(--c-cream);
}

/* =====================================================
   三项服务
   ===================================================== */
.section-services {
    background: var(--c-black);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 48px 36px;
    background: var(--c-black-3);
    border: 1px solid var(--c-line);
    transition: transform .5s var(--t), border-color .5s var(--t), background .5s var(--t);
}
.service-card:hover {
    transform: translateY(-6px);
    border-color: var(--c-gold);
    background: #1f1f1f;
}
.service-card-feature {
    background: linear-gradient(180deg, #1f1f1f 0%, #141414 100%);
    border-color: var(--c-gold);
}
.service-card-feature::before {
    content: "FEATURED";
    position: absolute;
    top: 18px; right: 18px;
    font-family: var(--f-serif-en);
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--c-gold);
}

.service-num {
    font-family: var(--f-serif-en);
    font-size: 14px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-bottom: 28px;
}

.service-title {
    font-family: var(--f-serif-cn);
    font-size: 24px;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin-bottom: 18px;
}

.service-desc {
    font-size: 14.5px;
    color: var(--c-cream-dim);
    line-height: 1.8;
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
    border-top: 1px solid var(--c-line);
    padding-top: 20px;
}
.service-list li {
    font-size: 13.5px;
    color: var(--c-cream);
    padding: 8px 0 8px 18px;
    position: relative;
    letter-spacing: 1px;
}
.service-list li::before {
    content: "·";
    position: absolute;
    left: 0;
    color: var(--c-gold);
    font-weight: bold;
}

/* =====================================================
   制作流程
   ===================================================== */
.section-process {
    background: linear-gradient(180deg, #141414 0%, #0d0d0d 100%);
}

.process-list {
    list-style: none;
    max-width: 880px;
    margin: 0 auto;
    counter-reset: step;
    position: relative;
}
.process-list::before {
    content: "";
    position: absolute;
    left: 28px;
    top: 30px;
    bottom: 30px;
    width: 1px;
    background: var(--c-line);
}

.process-step {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    padding: 28px 0;
    align-items: flex-start;
}

.step-num {
    font-family: var(--f-serif-en);
    font-size: 28px;
    letter-spacing: 3px;
    color: var(--c-gold);
    position: relative;
    padding-top: 6px;
}
.step-num::after {
    content: "";
    position: absolute;
    left: -16px;
    top: 14px;
    width: 8px; height: 8px;
    background: var(--c-gold);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--c-black);
}

.step-body h3 {
    font-family: var(--f-serif-cn);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin-bottom: 12px;
}
.step-body p {
    font-size: 15px;
    color: var(--c-cream-dim);
    line-height: 1.85;
    max-width: 640px;
}

/* =====================================================
   那些值得被珍藏的时刻
   ===================================================== */
.section-moments {
    background: linear-gradient(180deg, #0d0d0d 0%, #141414 100%);
}

.moments-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
}

.moment-card {
    position: relative;
    padding: 56px 22px 48px;
    background: var(--c-black-3);
    border: 1px solid var(--c-line);
    text-align: center;
    transition: transform .5s var(--t), border-color .5s var(--t), background .5s var(--t);
}
.moment-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-gold);
    background: #1f1f1f;
}
.moment-card::before {
    content: "";
    position: absolute;
    top: 16px; left: 50%;
    transform: translateX(-50%);
    width: 24px; height: 1px;
    background: var(--c-gold);
    opacity: .6;
}

.moment-num {
    display: block;
    font-family: var(--f-serif-en);
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--c-gold);
    margin-top: 18px;
    margin-bottom: 22px;
}

.moment-title {
    font-family: var(--f-serif-cn);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 6px;
    color: var(--c-cream);
    margin-bottom: 14px;
}

.moment-desc {
    font-size: 13px;
    color: var(--c-cream-dim);
    line-height: 1.8;
    letter-spacing: 1px;
}

/* =====================================================
   多孩子家庭场景
   ===================================================== */
.section-family {
    background: var(--c-black);
    padding-top: 0;
}

.family-wrap {
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
    padding: clamp(56px, 8vw, 96px) clamp(20px, 4vw, 48px);
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
}

.family-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(26px, 3.8vw, 42px);
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin: 16px 0 28px;
}
.family-title br { display: block; }

.family-desc {
    font-size: 15px;
    color: var(--c-cream-dim);
    line-height: 1.9;
    letter-spacing: 1px;
    max-width: 640px;
    margin: 0 auto;
}

/* =====================================================
   长期品牌陪伴
   ===================================================== */
.section-forever {
    background: var(--c-black);
    padding-top: 0;
}

.forever-wrap {
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
    padding: clamp(56px, 8vw, 96px) clamp(20px, 4vw, 48px);
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
    position: relative;
}
.forever-wrap::before {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: min(70%, 520px);
    height: 160px;
    background: radial-gradient(ellipse, rgba(181,138,74,0.14), transparent 70%);
    pointer-events: none;
}

.forever-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(28px, 4vw, 46px);
    font-weight: 500;
    line-height: 1.45;
    letter-spacing: 4px;
    color: var(--c-cream);
    margin: 16px 0 28px;
    position: relative;
}
.forever-title br { display: block; }

.forever-desc {
    font-size: 15.5px;
    color: var(--c-cream-dim);
    line-height: 2;
    letter-spacing: 1px;
    position: relative;
}

/* =====================================================
   品牌故事
   ===================================================== */
.section-story {
    background: var(--c-black);
}
.story-wrap {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}
.story-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(28px, 4.2vw, 44px);
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin: 16px 0 48px;
}
.story-title br { display: block; }
.story-text {
    font-size: 16px;
    color: var(--c-cream-dim);
    line-height: 2;
    letter-spacing: 1px;
    margin-bottom: 28px;
}

.story-signature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 48px;
    color: var(--c-gold);
    font-family: var(--f-serif-en);
    font-size: 13px;
    letter-spacing: 3px;
}
.sig-line { width: 60px; height: 1px; background: var(--c-gold); }

/* =====================================================
   预约咨询
   ===================================================== */
.section-contact {
    background: linear-gradient(180deg, #0d0d0d 0%, #141414 100%);
}

.contact-card {
    max-width: 760px;
    margin: 0 auto;
    padding: clamp(40px, 6vw, 72px);
    background: var(--c-black-3);
    border: 1px solid var(--c-gold);
    text-align: center;
    position: relative;
}
.contact-card::before, .contact-card::after {
    content: "";
    position: absolute;
    width: 24px; height: 24px;
    border: 1px solid var(--c-gold);
}
.contact-card::before {
    top: -1px; left: -1px;
    border-right: none; border-bottom: none;
}
.contact-card::after {
    bottom: -1px; right: -1px;
    border-left: none; border-top: none;
}

.contact-eyebrow { color: var(--c-gold); }

.contact-title {
    font-family: var(--f-serif-cn);
    font-size: clamp(26px, 3.8vw, 40px);
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 3px;
    color: var(--c-cream);
    margin: 16px 0 20px;
}
.contact-title br { display: block; }
.contact-desc {
    font-size: 15px;
    color: var(--c-cream-dim);
    line-height: 1.85;
    margin-bottom: 40px;
    letter-spacing: 1px;
}

/* 表单 */
.contact-form { text-align: left; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}
.form-field { margin-bottom: 20px; }
.form-field label {
    display: block;
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--c-gold);
    margin-bottom: 10px;
    font-family: var(--f-serif-en);
}
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-line);
    color: var(--c-cream);
    font-family: var(--f-serif-cn);
    font-size: 14.5px;
    letter-spacing: 1px;
    transition: border-color .3s var(--t), background .3s var(--t);
    outline: none;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(200, 192, 179, 0.4); }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--c-gold);
    background: rgba(181, 138, 74, 0.05);
}
.form-field select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--c-gold) 50%),
                      linear-gradient(135deg, var(--c-gold) 50%, transparent 50%);
    background-position: calc(100% - 18px) center, calc(100% - 12px) center;
    background-size: 6px 6px;
    background-repeat: no-repeat;
}
.form-field textarea { resize: vertical; min-height: 100px; }

.form-note {
    margin-top: 18px;
    font-size: 12px;
    color: var(--c-cream-dim);
    letter-spacing: 1px;
    line-height: 1.7;
    text-align: center;
}

/* =====================================================
   页脚
   ===================================================== */
.site-footer {
    padding: 48px 0 32px;
    background: #0a0a0a;
    border-top: 1px solid var(--c-line);
}
.footer-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}
.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.1;
}
/* Footer Logo 图片（V1.2.2 品牌资产适配） */
.footer-logo {
    height: 44px;
    width: auto;
    display: block;
}
.footer-text {
    font-family: var(--f-serif-cn);
    font-size: 14px;
    color: var(--c-cream-dim);
    letter-spacing: 4px;
}
.footer-meta {
    font-size: 12px;
    color: var(--c-cream-dim);
    opacity: .65;
    letter-spacing: 1px;
}

/* =====================================================
   V1.3 电影视觉素材 · 图片容器与优雅降级
   -----------------------------------------------------
   规则：
     · 图片铺满容器、等比裁切，不拉伸不变形
     · 加载就绪后淡入；文件缺失时完全移除，回退到原有黑金样式
     · 由 script.js 为 [data-media] 容器添加
       .is-media-ready / .is-media-missing 状态类
   ===================================================== */

[data-media] { position: relative; }

.media-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    opacity: 0;
    transition: opacity .9s var(--t);
}

/* 图片就绪：淡入 */
[data-media].is-media-ready .media-img { opacity: 1; }
/* 图片缺失：移除图片层，露出底层黑金样式 */
[data-media].is-media-missing .media-img { display: none; }

/* ----- 模块1：家庭影院时刻 ----- */
/* 桌面端为 21:9 画幅，照片取景略偏上，避免裁切人物主体 */
.emotion-media { object-position: center 42%; }

/* 真实照片就绪后，暖光与电影画幅叠加在照片上形成电影感；
   同时减弱原本为纯 CSS 背景设计的光斑层，避免画面显脏。 */
.emotion-visual.is-media-ready .emotion-glow { opacity: .5; }
.emotion-visual.is-media-ready .emotion-bokeh { opacity: .18; }

/* ----- 模块2：电影作品 · 海报式展示 ----- */
.poster-img { object-position: center; }

/* 图片就绪：将底层不透明渐变替换为可叠字的遮罩，文字下移形成海报构图 */
.work-poster.is-media-ready::after {
    background: linear-gradient(180deg,
        rgba(10, 10, 10, 0.22) 0%,
        rgba(10, 10, 10, 0.08) 42%,
        rgba(10, 10, 10, 0.62) 74%,
        rgba(6, 6, 6, 0.92) 100%);
}
.work-poster.is-media-ready .poster-frame {
    justify-content: flex-end;
    padding: 24px 22px 30px;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.8);
}
.work-poster.is-media-ready .poster-year { margin-bottom: 12px; }
.work-poster.is-media-ready .poster-title { font-size: 23px; }

/* 「创作概念展示」角标：未取得真实客户作品前始终显示 */
.poster-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 3;
    padding: 4px 10px;
    font-family: var(--f-serif-cn);
    font-size: 10.5px;
    font-weight: 400;
    letter-spacing: 2px;
    line-height: 1.5;
    color: var(--c-gold);
    background: rgba(10, 10, 10, 0.68);
    border: 1px solid rgba(181, 138, 74, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

/* ----- 模块3：核心产品主视觉 ----- */
/* 默认折叠：图片未提供时完全不占用页面高度 */
.firstfilm-media {
    position: relative;
    display: none;
    max-width: 1040px;
    margin: 0 auto 56px;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border: 1px solid var(--c-line);
    background: #0a0a0a;
}
.firstfilm-media.is-media-ready { display: block; }

.firstfilm-media-caption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 2;
    padding: 44px 20px 16px;
    font-family: var(--f-serif-cn);
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--c-cream-dim);
    text-align: center;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.8));
}

/* =====================================================
   动画 & 响应式
   ===================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s var(--t), transform 1s var(--t);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   V1.3.8 轻动态效果
   定位：高端私人电影品牌 —— 克制、优雅、有电影感
   - 纯 CSS 实现，不引入任何动画框架
   - 悬停效果仅在「精确指针 + 支持悬停」的设备生效（手机端自动不启用）
   - 完全尊重系统「减少动态效果」设置
   ===================================================== */

/* 3. 三张作品海报依次渐入，间隔约 0.12s */
.works-grid .work-card:nth-child(1) { transition-delay: 0s; }
.works-grid .work-card:nth-child(2) { transition-delay: .12s; }
.works-grid .work-card:nth-child(3) { transition-delay: .24s; }

/* 2. 首页主视觉图片（家庭影院时刻）：进入视口时轻微上移距离更收敛，保持电影感 */
.emotion-frame.reveal { transform: translateY(22px); }

/* 4+5+6. 海报悬停：轻微放大 1.025 倍 + 金色边框提亮（仅鼠标类设备） */
@media (hover: hover) and (pointer: fine) {

    .work-poster { transition: border-color .45s var(--t); }
    .work-poster::before { transition: border-color .45s var(--t); }

    /* 图片层：保留原有 opacity 过渡，叠加极克制的缩放 */
    .poster-img {
        transition: opacity .9s var(--t), transform .55s var(--t);
        will-change: transform;
    }

    .work-card:hover .poster-img { transform: scale(1.025); }

    /* 金色细边框提亮（外框 + 8px 内框） */
    .work-card:hover .work-poster { border-color: rgba(214, 178, 121, .5); }
    .work-card:hover .work-poster::before { border-color: rgba(214, 178, 121, .92); }
}

/* 7. 尊重系统减少动态效果设置：关闭所有位移/淡入动画，内容始终直接可见 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        transition-delay: 0s !important;
        scroll-behavior: auto !important;
    }
    .reveal,
    .emotion-frame.reveal {
        opacity: 1;
        transform: none;
    }
    .work-card:hover .poster-img { transform: none; }
}

/* ----- 平板 ----- */
@media (max-width: 1024px) {
    .works-grid { grid-template-columns: repeat(2, 1fr); }
    .works-grid--3 { grid-template-columns: repeat(3, 1fr); }
    .services-grid { grid-template-columns: 1fr; }
    .moments-grid { grid-template-columns: repeat(3, 1fr); }
    .growth-list { grid-template-columns: repeat(2, 1fr); }
    .hero-meta { display: none; }
}

/* ----- 手机 ----- */
@media (max-width: 720px) {

    .nav {
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: rgba(13, 13, 13, 0.97);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 16px var(--pad-x) 32px;
        border-bottom: 1px solid var(--c-line);
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: transform .35s var(--t), opacity .35s var(--t);
    }
    .nav.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-link {
        display: block;
        width: 100%;
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(181, 138, 74, 0.12);
    }
    .nav-link:last-child { border-bottom: none; }
    .nav-toggle { display: flex; }

    .brand-mark { font-size: 20px; letter-spacing: 3px; }
    .brand-sub { font-size: 9px; letter-spacing: 3px; }
    .brand-logo { height: 34px; }
    .footer-logo { height: 38px; }

    .hero { padding-top: 100px; }
    .hero-title { letter-spacing: 2px; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .btn { width: 100%; }

    .section { padding: 80px 0; }
    .works-grid { grid-template-columns: 1fr; gap: 36px; }
    .works-grid--3 { grid-template-columns: 1fr; gap: 28px; }
    .emotion-frame { padding: 8px; }
    .emotion-visual { aspect-ratio: 16 / 9; }
    /* 手机端照片居中取景，与容器比例一致，不裁切人物主体 */
    .emotion-media { object-position: center; }
    .emotion-caption { padding: 28px 4px 8px; }

    /* V1.3 电影视觉素材 · 手机端适配 */
    .poster-badge {
        top: 10px; right: 10px;
        font-size: 10px;
        letter-spacing: 1.5px;
        padding: 3px 8px;
    }
    .work-poster.is-media-ready .poster-frame { padding: 20px 18px 26px; }
    .work-poster.is-media-ready .poster-title { font-size: 20px; }
    .firstfilm-media { margin: 0 auto 40px; }
    .firstfilm-media-caption {
        padding: 30px 16px 14px;
        font-size: 11px;
        letter-spacing: 2px;
    }
    .moments-grid { grid-template-columns: 1fr; gap: 12px; }
    .moment-card { padding: 40px 20px; }
    .films-grid { grid-template-columns: 1fr; gap: 16px; }
    .film-card { padding: 40px 24px 36px; }
    .growth-list { grid-template-columns: 1fr; gap: 12px; }
    .growth-item { padding: 28px 20px 24px; }

    .hero-product-entry {
        padding: 20px 52px 20px 20px;
        margin-top: 32px;
    }
    .hpe-arrow { right: 18px; }
    .firstfilm-intro { margin-top: -24px; margin-bottom: 40px; font-size: 14.5px; }
    .firstfilm-note { margin-top: 32px; font-size: 12.5px; }

    .process-list::before { left: 18px; }
    .process-step { grid-template-columns: 56px 1fr; gap: 16px; }
    .step-num { font-size: 22px; }
    .step-num::after { left: -10px; top: 12px; width: 6px; height: 6px; }

    .form-row { grid-template-columns: 1fr; gap: 0; }

    .contact-card { padding: 32px 20px; }

    .service-card { padding: 36px 24px; }
}

/* RC1: two product cards, original brand styles retained. */
.services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 720px) { .services-grid { grid-template-columns: 1fr; } }