:root {
    --color-primary: #0b3d2e;
    --color-primary-dark: #072a20;
    --color-accent: #ff4d2e;
    --color-surface: #fff7df;
    --color-text: #0b1720;
    --rgb-primary: 11,61,46;
    --rgb-accent: 255,77,46;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 0px;
    --shadow-sm: 4px 4px 0px rgba(var(--rgb-primary),.22);
    --shadow-md: 4px 4px 0px rgba(var(--rgb-primary),.26), 8px 10px 18px rgba(11,61,46,.14);
    --shadow-lg: 4px 4px 0px rgba(var(--rgb-primary),.30), 14px 16px 28px rgba(11,61,46,.16);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.15s cubic-bezier(0.2, 0.85, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #ffffff; }
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:
        4px 4px 0px rgba(var(--rgb-primary),.34),
        0px 0px 0px 2px rgba(11,61,46,.18),
        10px 14px 26px rgba(0,0,0,.10);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background-color var(--transition);
    background: #ffffff;
    border-style: solid;
    border-width: 2px;
    border-color: rgba(11,61,46,.16);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition), color var(--transition);
    border-style: solid;
    border-width: 2px;
    border-color: rgba(11,61,46,.22);
}
a:not([class]) { color: #0f5a46; transition: var(--transition); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 2px 2px 0 rgba(var(--rgb-accent),.20); }

/* ========== 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;
                    background: linear-gradient(135deg, rgba(255,247,223,.98), rgba(255,255,255,1));
                    border-color: rgba(11,61,46,.20);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.36),
                        0px 0px 0px 2px rgba(255,77,46,.10),
                        10px 14px 22px rgba(0,0,0,.10);
                }
                .news-grid .card:hover {
                    transform: translate(-2px,-2px);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.45),
                        0px 0px 0px 2px rgba(255,77,46,.18),
                        14px 18px 28px rgba(0,0,0,.12);
                }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }
                .feature-list .card {
                    background: linear-gradient(180deg, #ffffff 0%, #fff3f0 100%);
                    border-color: rgba(255,77,46,.20);
                    box-shadow:
                        4px 4px 0px rgba(255,77,46,.28),
                        0px 0px 0px 2px rgba(11,61,46,.12),
                        10px 14px 26px rgba(11,61,46,.10);
                    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
                    border-radius: 0px;
                }
                .feature-list .card:hover {
                    transform: translate(2px,-2px);
                    border-color: rgba(255,77,46,.34);
                    box-shadow:
                        4px 4px 0px rgba(255,77,46,.38),
                        0px 0px 0px 2px rgba(255,77,46,.18),
                        14px 18px 30px rgba(0,0,0,.12);
                }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
                .hero-inner .card {
                    background: radial-gradient(120% 90% at 10% 10%, rgba(255,77,46,.14), rgba(255,255,255,1) 50%, rgba(255,247,223,.95) 100%);
                    border-color: rgba(11,61,46,.22);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.40),
                        0px 0px 0px 2px rgba(255,77,46,.12),
                        12px 16px 30px rgba(11,61,46,.12);
                    border-radius: 0px;
                }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }
                .testimonial-list .card {
                    background: linear-gradient(135deg, rgba(255,247,223,1) 0%, rgba(255,255,255,1) 55%, rgba(255,243,240,1) 100%);
                    border-color: rgba(11,61,46,.18);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.30),
                        0px 0px 0px 2px rgba(0,0,0,.08),
                        10px 14px 26px rgba(0,0,0,.10);
                    border-radius: 0px;
                }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
                .partner-grid .card {
                    background: linear-gradient(90deg, #ffffff 0%, #fff7df 100%);
                    border-color: rgba(11,61,46,.20);
                    box-shadow:
                        4px 4px 0px rgba(255,77,46,.20),
                        0px 0px 0px 2px rgba(11,61,46,.10),
                        10px 14px 22px rgba(0,0,0,.08);
                    border-radius: 0px;
                }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
                .faq-list .card {
                    background: linear-gradient(180deg, rgba(255,255,255,1), rgba(255,247,223,1));
                    border-color: rgba(255,77,46,.16);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.32),
                        0px 0px 0px 2px rgba(255,77,46,.12),
                        12px 16px 28px rgba(0,0,0,.10);
                    border-radius: 0px;
                }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
                .stats-grid .card {
                    background: linear-gradient(135deg, rgba(11,61,46,.10) 0%, rgba(255,255,255,1) 45%, rgba(255,77,46,.10) 100%);
                    border-color: rgba(11,61,46,.20);
                    box-shadow:
                        4px 4px 0px rgba(11,61,46,.36),
                        0px 0px 0px 2px rgba(0,0,0,.08),
                        10px 14px 26px rgba(11,61,46,.10);
                    border-radius: 0px;
                }

/* cta: full-bg */
.cta-section { background: linear-gradient(90deg, #0b3d2e 0%, #072a20 55%, #0b3d2e 100%); color: #ffffff; padding: 4rem 2rem; }
.cta-section .card, .cta-section [class*="card"] {
    background: radial-gradient(120% 90% at 10% 10%, rgba(255,77,46,.26), rgba(11,61,46,.95) 55%, rgba(7,42,32,1) 100%);
    border-color: rgba(255,77,46,.35);
    box-shadow:
        4px 4px 0px rgba(255,77,46,.35),
        0px 0px 0px 2px rgba(255,255,255,.10),
        14px 18px 32px rgba(0,0,0,.22);
    border-radius: 0px;
}
.cta-section a:not([class]) { color: #ffe9e4; }
.cta-section a:not([class]):hover { color: #ffffff; text-shadow: 2px 2px 0 rgba(255,77,46,.25); }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }

/* 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; }
}