:root {
    --color-primary: #b96b50;
    --color-primary-dark: #8f4c36;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 185,107,80;
    --rgb-accent: 135,168,120;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.06), 0 6px 18px rgba(135,168,120,.10);
    --shadow-md: 0 10px 30px rgba(45,45,45,.10), 0 0 0 1px rgba(45,45,45,.06), 0 0 22px rgba(135,168,120,.18);
    --shadow-lg: 0 18px 46px rgba(45,45,45,.14), 0 0 0 1px rgba(45,45,45,.08), 0 0 32px rgba(135,168,120,.28);
    --space-section: 3.75rem;
    --space-card: 1.125rem;
    --space-gap: 1.1rem;
    --transition: 420ms cubic-bezier(.2,.9,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.65;
    --panel-bg: rgba(250,248,243,.72);
    --hairline: rgba(45,45,45,.10);
    --card-edge: rgba(185,107,80,.55);
    --focus-ring: rgba(135,168,120,.40);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(1200px 600px at 20% -10%, rgba(135,168,120,.16), transparent 55%),
                radial-gradient(900px 520px at 105% 10%, rgba(185,107,80,.14), transparent 45%),
                linear-gradient(#faf8f3, #faf8f3);
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    letter-spacing: -0.01em;
}
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,.04),
        0 10px 30px rgba(45,45,45,.10),
        0 0 0 1px rgba(45,45,45,.06),
        0 0 26px rgba(var(--rgb-accent),.16);
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow calc(var(--transition) * .9), border-color var(--transition), background-color var(--transition), filter var(--transition);
    background: linear-gradient(180deg, rgba(250,248,243,.92), rgba(250,248,243,.76));
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    position: relative;
    overflow: hidden;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow calc(var(--transition) * .9), background-color var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
}
a:not([class]) {
    color: var(--color-primary);
    transition: transform var(--transition), color var(--transition), text-shadow var(--transition), filter var(--transition);
    text-shadow: 0 0 0 rgba(0,0,0,0);
}

/* ========== 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: 280px 1fr; }
                .news-grid .card {
                    border-left: 3px solid rgba(185,107,80,.85);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.05),
                        0 10px 28px rgba(45,45,45,.12),
                        0 0 0 1px rgba(45,45,45,.07),
                        0 0 28px rgba(var(--rgb-accent),.16);
                    background: linear-gradient(180deg, rgba(255,255,255,.58), rgba(250,248,243,.86));
                    border-radius: calc(var(--radius-lg) + 2px);
                }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }
.feature-list > .card, .feature-list [class*="card"] {
    border-left: 3px solid rgba(135,168,120,.55);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 12px 34px rgba(45,45,45,.10),
        0 0 0 1px rgba(45,45,45,.06),
        0 0 24px rgba(var(--rgb-accent),.14);
}

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-content h1, .hero-content h2 {
    text-shadow: 0 10px 30px rgba(45,45,45,.10), 0 0 26px rgba(var(--rgb-accent),.12);
}

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list .card, .testimonial-list [class*="card"] {
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.04),
                        0 12px 40px rgba(45,45,45,.10),
                        0 0 0 1px rgba(45,45,45,.06),
                        0 0 34px rgba(var(--rgb-accent),.18);
                    border-radius: calc(var(--radius-lg) + 1px);
                }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid .card, .partner-grid [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 10px 28px rgba(45,45,45,.08),
        0 0 0 1px rgba(45,45,45,.06),
        0 0 20px rgba(var(--rgb-accent),.12);
    opacity: .96;
}

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card, .faq-list [class*="card"] {
    border-radius: calc(var(--radius-lg) - 1px);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 12px 36px rgba(45,45,45,.10),
        0 0 0 1px rgba(45,45,45,.06),
        0 0 26px rgba(var(--rgb-accent),.14);
}

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; }
                .stats-grid .stat-value {
                    color: rgba(45,45,45,.94);
                    text-shadow: 0 18px 48px rgba(45,45,45,.12), 0 0 26px rgba(var(--rgb-accent),.16);
                }
                .stats-grid .card, .stats-grid [class*="card"] {
                    border-left: 3px solid rgba(185,107,80,.75);
                    border-radius: var(--radius-lg);
                    box-shadow:
                        0 1px 0 rgba(45,45,45,.04),
                        0 12px 40px rgba(45,45,45,.10),
                        0 0 0 1px rgba(45,45,45,.06),
                        0 0 34px rgba(var(--rgb-accent),.18);
                }

/* cta: card-style */
.cta-inner { background: var(--color-surface); border-radius: var(--radius-xl); padding: 3rem; text-align: center; }
.cta-inner {
    background:
        radial-gradient(800px 240px at 50% 0%, rgba(var(--rgb-accent),.22), transparent 60%),
        radial-gradient(520px 220px at 0% 60%, rgba(var(--rgb-primary),.16), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.55), rgba(250,248,243,.95));
    border-radius: calc(var(--radius-xl) + 2px);
    box-shadow:
        0 1px 0 rgba(45,45,45,.04),
        0 18px 58px rgba(45,45,45,.13),
        0 0 0 1px rgba(45,45,45,.07),
        0 0 50px rgba(var(--rgb-accent),.22);
    border: 1px solid rgba(45,45,45,.08);
    transition: box-shadow var(--transition), transform var(--transition), filter var(--transition);
}

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 1px 0 rgba(45,45,45,.05),
        0 24px 64px rgba(45,45,45,.16),
        0 0 0 1px rgba(45,45,45,.10),
        0 0 40px rgba(var(--rgb-accent),.35),
        0 0 24px rgba(var(--rgb-primary),.14);
    filter: saturate(1.05);
}
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 28px rgba(var(--rgb-accent),.38);
    filter: drop-shadow(0 8px 18px rgba(135,168,120,.18));
}
.card { border-left: 3px solid rgba(185,107,80,.75); }
header, .header, .navbar {
    background: linear-gradient(180deg, rgba(250,248,243,.55), rgba(250,248,243,.25));
    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: 3.25rem; --space-card: 1rem; --space-gap: 1rem; }
    .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; }
}