/* ===================================================
   乐隐谷农场 leyinFarm — 品牌样式
   主色：#E07A3A  logo 橙
   理念：温暖 · 自然 · 现代 · 克制
   =================================================== */

/* ---------- 设计令牌 / Tokens ---------- */
:root {
    /* 主色 — 品牌橙 */
    --c-primary: #E07A3A;
    --c-primary-dark: #C25A23;
    --c-primary-light: #F5A96A;
    --c-primary-bg: #FFF3E8;

    /* 辅色 — 自然绿 */
    --c-green: #3A5A2E;
    --c-green-light: #5B7A48;
    --c-green-bg: #EDF3E8;

    /* 米白系 */
    --c-cream: #FFFAF5;
    --c-cream-deep: #F5EDE0;
    --c-warm-white: #FFFBF6;

    /* 点缀金 */
    --c-gold: #F4C96A;
    --c-gold-deep: #D9A948;

    /* 中性色 */
    --c-dark: #2A1A0E;
    --c-dim: #5C4A3A;
    --c-mute: #8A7A68;
    --c-line: #E8DDD0;
    --c-white: #FFFFFF;

    /* 字体 */
    --f-serif: 'Noto Serif SC', 'Source Han Serif CN', 'Songti SC', serif;
    --f-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --f-en: 'Montserrat', 'Noto Sans SC', sans-serif;

    /* 间距 */
    --sp-1: 0.5rem;   --sp-2: 1rem;   --sp-3: 1.5rem;
    --sp-4: 2rem;      --sp-5: 3rem;   --sp-6: 4rem;
    --sp-7: 6rem;      --sp-8: 8rem;

    /* 圆角 */
    --r-sm: 6px; --r-md: 12px; --r-lg: 20px; --r-xl: 32px;

    /* 阴影 */
    --sh-sm: 0 2px 8px rgba(42, 26, 14, 0.06);
    --sh-md: 0 8px 30px rgba(42, 26, 14, 0.10);
    --sh-lg: 0 20px 60px rgba(42, 26, 14, 0.14);

    /* 过渡 */
    --t-fast: 0.2s ease;
    --t-base: 0.35s ease;
    --t-slow: 0.6s cubic-bezier(.22,.61,.36,1);
}

/* ---------- 重置 ---------- */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--f-sans);
    color: var(--c-dark);
    background: var(--c-cream);
    line-height: 1.7;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-primary); }
ul,ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

::selection { background: var(--c-primary); color: var(--c-white); }

/* ---------- 容器 ---------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* =========================================================
   顶部信息条
   ========================================================= */
.topbar {
    background: var(--c-green);
    color: var(--c-white);
    font-size: 0.85rem;
    padding: 0.5rem 0;
    letter-spacing: 0.02em;
}
.topbar__inner {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}
.topbar__item a { color: var(--c-white); }
.topbar__item a:hover { color: var(--c-gold); }

@media (max-width: 640px) {
    .topbar { display: none; }
}

/* =========================================================
   导航栏
   ========================================================= */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 251, 246, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: all var(--t-base);
}
.nav.is-scrolled {
    border-bottom-color: var(--c-line);
    box-shadow: var(--sh-sm);
}
.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.nav__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    padding: 0.35rem 0.75rem 0.35rem 0.5rem;
    border-radius: var(--r-md);
    gap: 0.65rem;
    transition: background var(--t-fast);
}
.nav__logo:hover {
    background: var(--c-primary-bg);
}
/* logo 图标：固定高度、不压缩 */
.nav__logo-mark {
    height: 38px;
    width: auto;
    flex-shrink: 0;
    display: block;
    margin: 0;
}
/* 字标区域 */
.nav__logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    line-height: 1.1;
    /* 让中英字标跟 logo 图形中间视觉对齐 */
    padding-top: 1px;
}
.nav__brand {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--c-dark);
    letter-spacing: 0.04em;
}
.nav__brand-en {
    font-family: var(--f-en);
    font-size: 0.68rem;
    color: var(--c-mute);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 2px;
}

@media (max-width: 768px) {
    .nav__logo-mark { height: 32px; }
    .nav__logo { padding: 0.3rem 0.5rem; gap: 0.5rem; }
    .nav__brand { font-size: 1rem; }
    .nav__brand-en { font-size: 0.62rem; }
}

.nav__menu {
    display: flex;
    gap: 0.2rem;
    align-items: center;
}
.nav__menu a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--c-dim);
    padding: 0.5rem 0.9rem;
    border-radius: var(--r-sm);
    transition: all var(--t-fast);
    position: relative;
}
.nav__menu a:hover {
    color: var(--c-primary);
    background: var(--c-primary-bg);
}

.nav__cta {
    font-family: var(--f-en);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.55rem 1.2rem;
    background: var(--c-primary);
    color: var(--c-white) !important;
    border-radius: 100px;
    transition: all var(--t-fast);
}
.nav__cta:hover {
    background: var(--c-primary-dark);
    color: var(--c-white) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(224, 122, 58, 0.35);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
}
.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--c-dark);
    border-radius: 2px;
    transition: all var(--t-fast);
}
.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
   ========================================================= */
.hero {
    position: relative;
    height: 92vh;
    min-height: 640px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero__image {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero__image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: heroZoom 18s ease-in-out infinite alternate;
}
@keyframes heroZoom {
    from { transform: scale(1.05) translateY(0); }
    to { transform: scale(1.12) translateY(-10px); }
}
.hero__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(
        135deg,
        rgba(42, 26, 14, 0.78) 0%,
        rgba(42, 26, 14, 0.55) 40%,
        rgba(42, 26, 14, 0.30) 100%
    );
}
.hero__content {
    position: relative;
    z-index: 2;
    color: var(--c-white);
    max-width: 780px;
    padding-top: 4rem;
}
.hero__tag {
    display: inline-block;
    font-family: var(--f-en);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 0.45rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.08);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}
.hero__title {
    font-family: var(--f-serif);
    font-weight: 900;
    font-size: clamp(2.6rem, 6vw, 4.4rem);
    line-height: 1.2;
    letter-spacing: 0.03em;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.hero__subtitle {
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    line-height: 1.85;
    color: rgba(255,255,255,0.9);
    margin-bottom: 2rem;
}
.hide-mob { display: inline; }

.hero__cta-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

/* 按钮系统 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.85rem 2rem;
    border-radius: 100px;
    transition: all var(--t-fast);
    letter-spacing: 0.02em;
}
.btn--primary {
    background: var(--c-primary);
    color: var(--c-white) !important;
    box-shadow: 0 8px 24px rgba(224, 122, 58, 0.4);
}
.btn--primary:hover {
    background: var(--c-primary-dark);
    color: var(--c-white) !important;
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(224, 122, 58, 0.5);
}
.btn--outline-light {
    background: transparent;
    color: var(--c-white) !important;
    border: 1.5px solid rgba(255,255,255,0.6);
}
.btn--outline-light:hover {
    background: var(--c-white);
    color: var(--c-primary) !important;
    border-color: var(--c-white);
}
.btn--outline {
    background: transparent;
    color: var(--c-primary) !important;
    border: 1.5px solid var(--c-primary);
}
.btn--outline:hover {
    background: var(--c-primary);
    color: var(--c-white) !important;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.18);
}
.hero__stat { text-align: center; }
.hero__stat .num {
    display: block;
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--c-gold);
    line-height: 1.1;
}
.hero__stat .lbl {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.78);
    letter-spacing: 0.04em;
    margin-top: 0.25rem;
    display: block;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem; left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.7);
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    animation: float 2s ease-in-out infinite;
    z-index: 2;
}
@keyframes float {
    0%,100% { transform: translate(-50%, 0); opacity: 0.7; }
    50%      { transform: translate(-50%, 8px); opacity: 1; }
}

/* =========================================================
   Hero 公众号引导
   ========================================================= */
.hero__wechat {
    position: absolute;
    bottom: 5rem;
    right: 5%;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.2rem 0.8rem 0.8rem;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--r-xl);
    max-width: 280px;
}
.hero__wechat-qr {
    width: 64px; height: 64px;
    border-radius: var(--r-sm);
    background: var(--c-white);
    flex-shrink: 0;
    overflow: hidden;
    display: grid; place-items: center;
}
.hero__wechat-qr img { width: 64px; height: 64px; object-fit: cover; }
.hero__wechat-text {
    display: flex; flex-direction: column;
    line-height: 1.3;
}
.hero__wechat-text strong {
    color: var(--c-white);
    font-size: 0.9rem;
    font-family: var(--f-serif);
}
.hero__wechat-text span {
    color: rgba(255,255,255,0.75);
    font-size: 0.78rem;
    margin-top: 0.15rem;
    line-height: 1.4;
}

/* =========================================================
   位置与进出特色
   ========================================================= */
.location-strip {
    background: var(--c-cream-deep);
    border-bottom: 1px solid var(--c-line);
    padding: var(--sp-4) 0;
}
.location-strip__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.location-strip__item {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
}
.location-strip__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}
.location-strip__item strong {
    display: block;
    font-family: var(--f-serif);
    color: var(--c-dark);
    font-size: 0.95rem;
    margin-bottom: 0.15rem;
}
.location-strip__item p {
    font-size: 0.82rem;
    color: var(--c-mute);
    line-height: 1.5;
}

@media (max-width: 1024px) {
    .location-strip__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .location-strip__grid { grid-template-columns: 1fr; }
    .hero__wechat { display: none; }
}

/* =========================================================
   三大理念简览 (pillars)
   ========================================================= */
.pillars {
    background: var(--c-white);
    padding: var(--sp-7) 0;
    border-bottom: 1px solid var(--c-line);
}
.pillars__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.pillar {
    text-align: center;
    padding: 2rem 1.5rem;
    border-radius: var(--r-lg);
    transition: var(--t-base);
    background: var(--c-cream);
    border: 1px solid transparent;
}
.pillar:hover {
    border-color: var(--c-primary);
    transform: translateY(-6px);
    box-shadow: var(--sh-md);
}
.pillar__icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: var(--c-primary-bg);
    display: grid; place-items: center;
    font-size: 1.8rem;
    margin: 0 auto 1rem;
}
.pillar h3 {
    font-family: var(--f-serif);
    font-size: 1.4rem;
    color: var(--c-dark);
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}
.pillar p {
    color: var(--c-dim);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* =========================================================
   通用 section 框架
   ========================================================= */
.section {
    padding: var(--sp-8) 0;
    position: relative;
}
.section:nth-of-type(even) { background: var(--c-white); }
.section:nth-of-type(odd)  { background: var(--c-cream); }

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--sp-6);
}
.eyebrow {
    display: inline-block;
    font-family: var(--f-en);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-primary);
    padding: 0.3rem 0.9rem;
    background: var(--c-primary-bg);
    border-radius: 100px;
    margin-bottom: 1rem;
}
.section-title {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    line-height: 1.3;
    color: var(--c-dark);
    letter-spacing: 0.02em;
    margin-bottom: 1rem;
}
.section-lead {
    font-size: 1.05rem;
    color: var(--c-dim);
    line-height: 1.8;
}
.lede {
    font-size: 1.1rem;
    color: var(--c-dark);
    line-height: 1.85;
    margin-bottom: 1.2rem;
}

/* =========================================================
   品牌故事
   ========================================================= */
.story__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-7);
    align-items: center;
}
.story__media {
    position: relative;
}
.story__media img {
    border-radius: var(--r-lg);
    aspect-ratio: 4/5;
    object-fit: cover;
    box-shadow: var(--sh-lg);
}
.story__badge {
    position: absolute;
    bottom: -1.5rem; right: -1.5rem;
    width: 130px; height: 130px;
    border-radius: 50%;
    background: var(--c-primary);
    color: var(--c-white);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    box-shadow: var(--sh-md);
    text-align: center;
}
.story__badge .num {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 2.4rem;
    line-height: 1;
}
.story__badge .lbl {
    font-size: 0.78rem;
    margin-top: 0.25rem;
    line-height: 1.3;
}

.story__body p {
    color: var(--c-dim);
    line-height: 1.85;
    margin-bottom: 1rem;
}
.story__quote {
    margin-top: 1.5rem;
    padding: 1.2rem 1.5rem;
    background: var(--c-primary-bg);
    border-left: 3px solid var(--c-primary);
    font-family: var(--f-serif);
    font-size: 1.1rem;
    color: var(--c-primary-dark);
    border-radius: 0 var(--r-md) var(--r-md) 0;
    font-style: italic;
    letter-spacing: 0.03em;
}

/* =========================================================
   经营模式
   ========================================================= */
.model { background: var(--c-cream) !important; }
.model__cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: var(--sp-6);
}
.model-card {
    background: var(--c-white);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--t-base);
}
.model-card:hover {
    border-color: var(--c-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--sh-md);
}
.model-card__icon {
    font-size: 2.4rem;
    margin-bottom: 0.5rem;
}
.model-card h3 {
    font-family: var(--f-serif);
    font-size: 1.15rem;
    color: var(--c-dark);
    line-height: 1.4;
    margin-bottom: 0.6rem;
}
.model-card p {
    font-size: 0.9rem;
    color: var(--c-mute);
    line-height: 1.7;
}

.model__metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    background: var(--c-green);
    border-radius: var(--r-lg);
    padding: 2.5rem 2rem;
    color: var(--c-white);
    text-align: center;
}
.metric__num {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 2.4rem;
    color: var(--c-gold);
    line-height: 1;
    margin-bottom: 0.4rem;
}
.metric__lbl {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.5;
}

/* =========================================================
   愿景目标
   ========================================================= */
.vision { background: var(--c-white) !important; }
.vision__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-7);
    align-items: center;
}
.vision__media img {
    border-radius: var(--r-lg);
    aspect-ratio: 5/4;
    object-fit: cover;
    box-shadow: var(--sh-lg);
}
.vision__body p {
    color: var(--c-dim);
    line-height: 1.85;
    margin-bottom: 1rem;
}
.vision__goals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}
.goal {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--c-cream);
    border-radius: var(--r-md);
    border: 1px solid var(--c-line);
}
.goal__num {
    display: block;
    font-family: var(--f-serif);
    font-weight: 900;
    font-size: 2.4rem;
    color: var(--c-primary);
    line-height: 1;
    margin-bottom: 0.4rem;
}
.goal__txt {
    font-size: 0.85rem;
    color: var(--c-dim);
    line-height: 1.5;
}

/* =========================================================
   会员权益
   ========================================================= */
.membership { background: var(--c-cream) !important; }
.membership__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: var(--sp-6);
}
.mcard {
    background: var(--c-white);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--t-base);
}
.mcard:hover {
    border-color: var(--c-primary);
    transform: translateY(-4px);
    box-shadow: var(--sh-md);
}
.mcard__icon {
    font-size: 2.4rem;
    margin-bottom: 0.5rem;
}
.mcard h3 {
    font-family: var(--f-serif);
    font-size: 1.15rem;
    color: var(--c-dark);
    margin-bottom: 0.5rem;
}
.mcard p {
    font-size: 0.9rem;
    color: var(--c-mute);
    line-height: 1.7;
}

.cta-banner {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    color: var(--c-white);
    border-radius: var(--r-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--sh-md);
}
.cta-banner h3 {
    font-family: var(--f-serif);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.cta-banner p {
    color: rgba(255,255,255,0.92);
    margin-bottom: 1.2rem;
}
.cta-banner a { color: var(--c-gold); font-weight: 600; }
.cta-banner .btn--primary {
    background: var(--c-white);
    color: var(--c-primary) !important;
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}
.cta-banner .btn--primary:hover {
    background: var(--c-cream);
    color: var(--c-primary-dark) !important;
}

/* =========================================================
   自然教育 + 农场体验
   ========================================================= */
.education { background: var(--c-white) !important; }
.edu__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.edu-card {
    background: var(--c-cream);
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--c-line);
    transition: var(--t-base);
}
.edu-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sh-md);
    border-color: var(--c-primary-light);
}
.edu-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform var(--t-slow);
}
.edu-card:hover img { transform: scale(1.05); }
.edu-card__body {
    padding: 1.5rem;
}
.edu-card__body h3 {
    font-family: var(--f-serif);
    font-size: 1.15rem;
    color: var(--c-dark);
    margin-bottom: 0.4rem;
}
.edu-card__body p {
    font-size: 0.9rem;
    color: var(--c-mute);
    line-height: 1.7;
}

/* =========================================================
   农场产品
   ========================================================= */
.products { background: var(--c-cream) !important; }
.products__tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--sp-5);
    flex-wrap: wrap;
}
.tab {
    font-family: var(--f-sans);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.7rem 1.5rem;
    border-radius: 100px;
    background: var(--c-white);
    color: var(--c-dim);
    border: 1px solid var(--c-line);
    transition: all var(--t-fast);
}
.tab:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
}
.tab.active {
    background: var(--c-primary);
    color: var(--c-white);
    border-color: var(--c-primary);
}

.products__panel { display: none; animation: fadeUp 0.5s ease; }
.products__panel.active { display: block; }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(15px); }
    to   { opacity: 1; transform: translateY(0); }
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
    align-items: center;
    background: var(--c-white);
    border-radius: var(--r-lg);
    padding: 2rem;
    box-shadow: var(--sh-sm);
}
.product-detail__media img {
    border-radius: var(--r-md);
    aspect-ratio: 4/3;
    object-fit: cover;
}
.product-detail__body h3 {
    font-family: var(--f-serif);
    font-size: 1.6rem;
    color: var(--c-dark);
    margin-bottom: 0.3rem;
}
.product-detail__body .tag {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--c-primary);
    background: var(--c-primary-bg);
    padding: 0.25rem 0.8rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}
.product-detail__body p {
    color: var(--c-dim);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.product-detail__body ul {
    margin-bottom: 1.5rem;
}
.product-detail__body li {
    color: var(--c-dim);
    padding: 0.3rem 0;
    font-size: 0.95rem;
}

.seasonal-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}
.seasonal-item {
    background: var(--c-white);
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid var(--c-line);
    transition: var(--t-base);
}
.seasonal-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--sh-md);
}
.seasonal-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}
.seasonal-item__body {
    padding: 0.8rem;
    text-align: center;
}
.seasonal-item__body strong {
    display: block;
    font-family: var(--f-serif);
    font-size: 1.1rem;
    color: var(--c-primary);
    margin-bottom: 0.2rem;
}
.seasonal-item__body p {
    font-size: 0.8rem;
    color: var(--c-mute);
    line-height: 1.5;
}

/* =========================================================
   学习分享 + 培训
   ========================================================= */
.sharing { background: var(--c-white) !important; }
.sharing__layout {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: var(--sp-7);
    align-items: center;
}
.sharing__body p {
    color: var(--c-dim);
    line-height: 1.85;
    margin-bottom: 1rem;
}
.sharing__topics {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin: 2rem 0;
}
.topic {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.2rem;
    background: var(--c-cream);
    border-radius: var(--r-md);
    border-left: 3px solid var(--c-primary);
    transition: var(--t-fast);
}
.topic:hover {
    background: var(--c-primary-bg);
    transform: translateX(4px);
}
.topic__num {
    font-family: var(--f-en);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--c-primary);
    min-width: 36px;
}
.topic strong {
    display: block;
    color: var(--c-dark);
    font-size: 1rem;
    margin-bottom: 0.15rem;
}
.topic p {
    font-size: 0.85rem;
    color: var(--c-mute);
    margin: 0 !important;
}
.sharing__cta {
    padding: 1.2rem 1.5rem;
    background: var(--c-green-bg);
    border-radius: var(--r-md);
    color: var(--c-green);
    font-size: 0.95rem;
    line-height: 1.7;
}
.sharing__cta a { color: var(--c-primary); font-weight: 600; }
.sharing__media img {
    border-radius: var(--r-lg);
    aspect-ratio: 4/5;
    object-fit: cover;
    box-shadow: var(--sh-lg);
}

/* =========================================================
   联系我们
   ========================================================= */
.contact { background: var(--c-cream) !important; }
.contact__layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--sp-6);
    align-items: center;
}
.contact__info p {
    color: var(--c-dim);
    line-height: 1.85;
    margin-bottom: 1rem;
}
.contact__ways {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}
.contact-way {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.2rem;
    background: var(--c-white);
    border-radius: var(--r-md);
    border: 1px solid var(--c-line);
    transition: var(--t-fast);
}
.contact-way:hover {
    border-color: var(--c-primary);
    box-shadow: var(--sh-sm);
}
.contact-way__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}
.contact-way strong {
    display: block;
    color: var(--c-dark);
    font-size: 0.95rem;
    margin-bottom: 0.15rem;
}
.contact-way a, .contact-way span {
    color: var(--c-dim);
    font-size: 0.9rem;
}
.contact-way a:hover { color: var(--c-primary); }

.contact__card {
    background: var(--c-white);
    border-radius: var(--r-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--sh-md);
    border: 1px solid var(--c-line);
}
.contact__card h3 {
    font-family: var(--f-serif);
    font-size: 1.2rem;
    color: var(--c-dark);
    margin-bottom: 1rem;
}
.contact__qr {
    display: inline-block;
    padding: 0.8rem;
    background: var(--c-cream);
    border-radius: var(--r-md);
    margin-bottom: 0.8rem;
}
.contact__qr-id {
    font-size: 0.95rem;
    color: var(--c-dim);
    margin-bottom: 0.4rem;
}
.contact__qr-id strong { color: var(--c-primary); }
.contact__hint {
    font-size: 0.82rem;
    color: var(--c-mute);
    line-height: 1.6;
}

/* =========================================================
   页脚
   ========================================================= */
.footer {
    background: var(--c-dark);
    color: rgba(255,255,255,0.78);
    padding-top: var(--sp-7);
}
.footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--sp-6);
    padding-bottom: var(--sp-6);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer__logo {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.2rem;
}
.footer__logo-mark {
    height: 42px;
    width: auto;
    flex-shrink: 0;
    /* 透明 PNG 在深色 footer 上，轻发光让它不贴底 */
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.06))
            drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25));
}
.footer__brand-name {
    font-family: var(--f-serif);
    font-size: 1.3rem;
    color: var(--c-white);
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 0.15rem;
}
.footer__brand-en {
    font-family: var(--f-en);
    font-size: 0.72rem;
    color: var(--c-primary-light);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.footer__brand-name {
    font-family: var(--f-serif);
    font-size: 1.3rem;
    color: var(--c-white);
    font-weight: 700;
}
.footer__brand-en {
    font-family: var(--f-en);
    font-size: 0.72rem;
    color: var(--c-primary-light);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.footer__brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
}
.footer__links h4 {
    font-family: var(--f-serif);
    color: var(--c-white);
    font-size: 1rem;
    margin-bottom: 1rem;
    letter-spacing: 0.04em;
}
.footer__links a, .footer__links span {
    display: block;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    padding: 0.3rem 0;
    transition: color var(--t-fast);
}
.footer__links a:hover { color: var(--c-primary-light); }
.footer__bottom {
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1024px) {
    .model__cards { grid-template-columns: repeat(2, 1fr); }
    .membership__grid { grid-template-columns: repeat(2, 1fr); }
    .edu__grid { grid-template-columns: repeat(2, 1fr); }
    .seasonal-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 68px; left: 0; right: 0;
        background: var(--c-warm-white);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 0.3rem;
        border-bottom: 1px solid var(--c-line);
        box-shadow: var(--sh-md);
        transform: translateY(-120%);
        opacity: 0;
        transition: all var(--t-base);
    }
    .nav__menu.is-open {
        transform: translateY(0);
        opacity: 1;
    }
    .nav__menu a {
        padding: 0.8rem 1rem;
        border-radius: var(--r-sm);
    }
    .nav__cta { display: none; }
    .nav__toggle { display: flex; }

    .hero { min-height: 560px; height: 88vh; }
    .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .hero__stat .num { font-size: 1.4rem; }
    .hide-mob { display: none; }

    .pillars__grid { grid-template-columns: 1fr; gap: 1rem; }

    .story__layout,
    .vision__layout,
    .product-detail,
    .sharing__layout,
    .contact__layout {
        grid-template-columns: 1fr;
        gap: var(--sp-5);
    }
    .story__badge { width: 100px; height: 100px; bottom: -1rem; right: -0.5rem; }
    .story__badge .num { font-size: 1.8rem; }

    .model__cards { grid-template-columns: 1fr; }
    .model__metrics { grid-template-columns: repeat(2, 1fr); gap: 1rem; }

    .membership__grid { grid-template-columns: 1fr; }
    .edu__grid { grid-template-columns: 1fr; }
    .seasonal-grid { grid-template-columns: repeat(2, 1fr); }

    .vision__goals { grid-template-columns: repeat(3, 1fr); }
    .goal__num { font-size: 1.8rem; }

    .footer__inner { grid-template-columns: 1fr; gap: var(--sp-5); }
}

@media (max-width: 480px) {
    .hero__title { font-size: 2rem; }
    .hero__cta-row { flex-direction: column; }
    .hero__cta-row .btn { justify-content: center; }
    .seasonal-grid { grid-template-columns: 1fr 1fr; }
    .vision__goals { grid-template-columns: 1fr; }
    .model__metrics { grid-template-columns: 1fr; }
    .product-detail { padding: 1.2rem; }
    .contact__card { padding: 1.5rem; }
}

/* =========================================================
   入场动画
   ========================================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动条美化 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--c-cream); }
::-webkit-scrollbar-thumb { background: var(--c-primary-light); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary); }