:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #9f5c3f;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm:
        0 1px 0 rgba(45,45,45,.05),
        0 10px 25px rgba(196,123,90,.10);
    --shadow-md:
        0 1px 0 rgba(45,45,45,.04),
        0 14px 40px rgba(196,123,90,.12),
        0 2px 10px rgba(45,45,45,.06);
    --shadow-lg:
        0 1px 0 rgba(45,45,45,.035),
        0 22px 70px rgba(196,123,90,.13),
        0 10px 35px rgba(135,168,120,.10);
    --space-section: 4.25rem;
    --space-card: 1.625rem;
    --space-gap: 2rem;
    --transition: 220ms cubic-bezier(.2,.85,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.65;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(900px 500px at 50% -10%, rgba(var(--rgb-accent),.12), transparent 60%), linear-gradient(180deg, #faf8f3 0%, #f6f2e7 100%); }
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-xl);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 14px 40px rgba(var(--rgb-primary),.14),
        0 10px 26px rgba(45,45,45,.06),
        inset 0 1px 0 rgba(255,255,255,.55);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background-color var(--transition), color var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,.78) 0%, rgba(255,255,255,.56) 100%);
    border: 1px solid rgba(45,45,45,.06);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: background-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
    outline-color: rgba(var(--rgb-primary),.55);
}
a:not([class]) {
    color: var(--color-primary);
    transition: color var(--transition), text-shadow var(--transition), opacity var(--transition);
    text-shadow: 0 1px 0 rgba(255,255,255,.45);
}
a:not([class]):focus {
    outline: 2px solid rgba(var(--rgb-accent),.55);
    outline-offset: 3px;
}

:root { accent-color: var(--color-accent); caret-color: var(--color-primary-dark); }

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card {
                    display: grid;
                    grid-template-columns: 300px 1fr;
                    border-radius: calc(var(--radius-xl) - 6px);
                    background:
                        radial-gradient(420px 260px at 10% 0%, rgba(var(--rgb-accent),.20), transparent 60%),
                        linear-gradient(180deg, rgba(255,255,255,.82) 0%, rgba(255,255,255,.55) 100%);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.04),
                        0 18px 55px rgba(var(--rgb-primary),.14),
                        0 10px 28px rgba(45,45,45,.06);
                }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: centered */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.hero-content, .cta-inner {
    filter: saturate(1.02);
}

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

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

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper {
                    display: grid;
                    grid-template-columns: 2fr 1fr;
                    gap: 2.25rem;
                }
                .faq-wrapper .card {
                    border-radius: calc(var(--radius-xl) - 4px);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.04),
                        0 16px 50px rgba(var(--rgb-accent),.11),
                        0 10px 30px rgba(var(--rgb-primary),.10),
                        inset 0 1px 0 rgba(255,255,255,.55);
                }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3.25rem; }
                .stats-grid .card {
                    background: linear-gradient(180deg, rgba(255,255,255,.72) 0%, rgba(255,255,255,.48) 100%);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.04),
                        0 16px 55px rgba(45,45,45,.07),
                        0 10px 30px rgba(var(--rgb-accent),.10);
                }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-inner .card {
    border-radius: var(--radius-xl);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 22px 80px rgba(var(--rgb-primary),.14),
        0 12px 35px rgba(135,168,120,.12),
        inset 0 1px 0 rgba(255,255,255,.62);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card { border-left: 4px solid rgba(var(--rgb-primary),.85); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(45,45,45,.06),
        0 12px 34px rgba(45,45,45,.08),
        0 2px 10px rgba(var(--rgb-accent),.10);
    border-bottom: 1px solid rgba(45,45,45,.06);
    background: linear-gradient(180deg, rgba(255,255,255,.70) 0%, rgba(255,255,255,.52) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* 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; }
}
@media (max-width: 640px) {
    :root { --space-section: 3rem; --space-card: 1.25rem; --space-gap: 1.25rem; --radius-md: 14px; --radius-lg: 18px; --radius-xl: 22px; }
    .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"] {
        box-shadow:
            0 1px 0 rgba(45,45,45,.04),
            0 16px 45px rgba(var(--rgb-primary),.12),
            0 10px 28px rgba(45,45,45,.06);
        border-left: 4px solid rgba(var(--rgb-accent),.65);
        border-radius: var(--radius-lg);
        backdrop-filter: blur(7px);
        -webkit-backdrop-filter: blur(7px);
        transition-duration: 180ms;
    }
}