:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a85f3b;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.06), 0 10px 22px rgba(196,123,90,.10);
    --shadow-md: 0 2px 0 rgba(45,45,45,.05), 0 14px 36px rgba(196,123,90,.12), 0 2px 10px rgba(135,168,120,.10);
    --shadow-lg: 0 2px 0 rgba(45,45,45,.05), 0 22px 60px rgba(196,123,90,.14), 0 8px 18px rgba(45,45,45,.06);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 680ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 46px rgba(var(--rgb-primary), .14),
        0 10px 22px rgba(45,45,45,.06);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(180deg, rgba(250,248,243,.92), rgba(250,248,243,.78));
    border: 1px solid rgba(45,45,45,.07);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: 0 1px 0 rgba(45,45,45,.04), 0 12px 28px rgba(var(--rgb-accent), .16);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-primary-dark); }
h1 { letter-spacing: -0.02em; }
h2, h3 { letter-spacing: -0.01em; }

/* ========== Section Layout Variants ========== */

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card {
                    break-inside: avoid;
                    margin-bottom: var(--space-gap);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.05),
                        0 18px 46px rgba(var(--rgb-primary), .12),
                        0 8px 18px rgba(var(--rgb-accent), .10);
                }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list .card {
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 46px rgba(196,123,90,.12),
        0 10px 22px rgba(45,45,45,.06),
        inset 0 1px 0 rgba(255,255,255,.7);
}

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
                .hero-inner .card { background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(250,248,243,.65)); }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list .card {
                    border-radius: var(--radius-xl);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.05),
                        0 24px 70px rgba(var(--rgb-primary), .14),
                        0 10px 26px rgba(135,168,120,.12);
                }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card {
    border-radius: calc(var(--radius-lg) - 2px);
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 16px 44px rgba(var(--rgb-accent), .14),
        0 8px 18px rgba(45,45,45,.06);
}

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid .card {
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.05),
                        0 14px 40px rgba(var(--rgb-primary), .12);
                    border-radius: var(--radius-lg);
                }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(1200px 520px at 15% 20%, rgba(var(--rgb-accent), .20), transparent 55%),
        radial-gradient(900px 480px at 85% 10%, rgba(var(--rgb-primary), .18), transparent 55%),
        linear-gradient(135deg, rgba(250,248,243,.98), rgba(250,248,243,.72));
    border-bottom: 1px solid rgba(45,45,45,.06);
}
.card { border: 1px solid rgba(135,168,120,.18); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 18px 40px rgba(45,45,45,.08),
        0 8px 20px rgba(var(--rgb-primary), .10);
    border-bottom: 1px solid rgba(45,45,45,.06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(250,248,243,.74);
}
header, .header, .navbar {
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
    header, .header, .navbar { backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
}
@media (max-width: 640px) {
    :root { --space-section: 3.2rem; --space-card: 1.2rem; --space-gap: 1rem; --transition: 620ms cubic-bezier(0.16, 1, 0.3, 1); }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
    .card, [class*="card"] { border-radius: calc(var(--radius-lg) - 4px); box-shadow: 0 1px 0 rgba(45,45,45,.05), 0 14px 36px rgba(var(--rgb-primary), .12); }
    .hero, [class*="hero"], section:first-of-type {
        background:
            radial-gradient(900px 460px at 20% 10%, rgba(var(--rgb-accent), .20), transparent 55%),
            linear-gradient(135deg, rgba(250,248,243,.98), rgba(250,248,243,.78));
    }
}