:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a86443;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;

    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 26px;

    --shadow-sm: 0 2px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.06), 0 18px 45px -14px rgba(0,0,0,0.14);
    --shadow-lg: 0 6px 18px rgba(0,0,0,0.07), 0 28px 70px -18px rgba(0,0,0,0.16);

    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;

    --transition: 0.42s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.6;
}

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: 22px;
    box-shadow: var(--shadow-md);
    padding: var(--space-card);
    transition: transform 0.42s cubic-bezier(.2,.8,.2,1), box-shadow 0.42s cubic-bezier(.2,.8,.2,1), border-color 0.42s cubic-bezier(.2,.8,.2,1), background-color 0.42s cubic-bezier(.2,.8,.2,1);
    background: rgba(250,248,243,0.88);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform 0.42s cubic-bezier(.2,.8,.2,1), box-shadow 0.42s cubic-bezier(.2,.8,.2,1), background-color 0.42s cubic-bezier(.2,.8,.2,1), color 0.42s cubic-bezier(.2,.8,.2,1);
}

a:not([class]) {
    color: var(--color-primary-dark);
    transition: color 0.42s cubic-bezier(.2,.8,.2,1), text-shadow 0.42s cubic-bezier(.2,.8,.2,1);
    text-shadow: 0 1px 0 rgba(0,0,0,0.03);
}

:focus-visible {
    outline: 2px solid rgba(var(--rgb-accent), 0.6);
    outline-offset: 3px;
}

::-moz-selection { background: rgba(var(--rgb-primary), 0.22); color: var(--color-text); }
::selection { background: rgba(var(--rgb-primary), 0.22); color: var(--color-text); }

.card svg, [class*="card"] svg { fill: none; stroke: rgba(var(--rgb-primary), 0.55); transition: stroke 0.42s cubic-bezier(.2,.8,.2,1), fill 0.42s cubic-bezier(.2,.8,.2,1); }
a svg, a[class*="btn"] svg { stroke: rgba(var(--rgb-primary), 0.75); }

.card, [class*="card"] { caret-color: var(--color-primary-dark); accent-color: var(--color-accent); }

/* ========== 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); background: rgba(250,248,243,0.9); }

/* features: centered */
/* 居中大卡片 */
                .feature-list {
                    display: flex;
                    flex-direction: column;
                    align-items: center;
                    gap: calc(var(--space-gap) * 2);
                    max-width: 720px;
                    margin: 0 auto;
                }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 300px at 15% 10%, rgba(var(--rgb-accent), 0.22), transparent 55%),
        radial-gradient(700px 260px at 90% 0%, rgba(var(--rgb-primary), 0.20), transparent 60%),
        linear-gradient(135deg, rgba(250,248,243,0.85), rgba(196,123,90,0.18));
    border-bottom: 1px solid rgba(45,45,45,0.06);
}

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section {
    background:
        radial-gradient(800px 300px at 20% 10%, rgba(135,168,120,0.28), transparent 55%),
        radial-gradient(900px 360px at 85% 35%, rgba(250,248,243,0.28), transparent 60%),
        linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
    color: rgba(250,248,243,0.98);
    padding: 4rem 2rem;
    box-shadow: 0 -1px 0 rgba(45,45,45,0.06) inset, 0 16px 55px -28px rgba(0,0,0,0.22);
    backdrop-filter: blur(6px);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--rgb-accent), 0.20);
}

a:not([class]):hover { color: var(--color-accent); text-shadow: 0 2px 10px rgba(var(--rgb-accent), 0.18); }

.card { border-style: solid; border-width: 1px; border-color: rgba(45,45,45,0.10); background-clip: padding-box; }
header, .header, .navbar { background: transparent; }

header, .header, .navbar { backdrop-filter: blur(10px); }
.cta-section * { text-shadow: 0 2px 16px rgba(0,0,0,0.18); }

/* 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: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .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; }
}