:root {
    --color-primary: #0b3b49;
    --color-primary-dark: #062531;
    --color-accent: #ff6b35;
    --color-surface: #fff3d6;
    --color-text: #0e1720;
    --rgb-primary: 11,59,73;
    --rgb-accent: 255,107,53;
    --radius-sm: 18px;
    --radius-md: 22px;
    --radius-lg: 26px;
    --radius-xl: 30px;
    --shadow-sm: 0 1px 0 rgba(0,0,0,.06), 0 10px 20px rgba(11,59,73,.10);
    --shadow-md: 0 2px 0 rgba(0,0,0,.05), 0 14px 30px rgba(11,59,73,.12), 0 2px 10px rgba(0,0,0,.06);
    --shadow-lg: 0 2px 0 rgba(0,0,0,.04), 0 18px 45px rgba(11,59,73,.18), 0 8px 18px rgba(255,107,53,.10);
    --space-section: 5.75rem;
    --space-card: 2.15rem;
    --space-gap: 1.9rem;
    --transition: 260ms cubic-bezier(.2,.8,.2,1);
    --heading-weight: 650;
    --body-line-height: 1.78;

    --strip-1: #ffffff;
    --strip-2: #fff6e6;
    --strip-3: #0b3b49;
    --strip-4: #ffffff;
    --strip-border: rgba(11,59,73,.14);
    --strip-glow: rgba(255,107,53,.18);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(1200px 600px at 20% -10%, rgba(255,107,53,.10) 0%, rgba(255,107,53,0) 60%),
                radial-gradient(900px 500px at 90% 0%, rgba(11,59,73,.12) 0%, rgba(11,59,73,0) 55%),
                linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,1) 100%);
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background:
      linear-gradient(180deg, rgba(255,255,255,.75) 0%, rgba(255,255,255,0) 65%),
      linear-gradient(0deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,.55) 100%);
    border-top: 1px solid rgba(var(--rgb-primary), .10);
}
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow:
      0 1px 0 rgba(255,255,255,.55) inset,
      0 14px 35px rgba(11,59,73,.14),
      0 3px 14px rgba(0,0,0,.07);
    padding: var(--space-card);
    transition:
      transform 320ms cubic-bezier(.16,1,.3,1),
      box-shadow 320ms cubic-bezier(.16,1,.3,1),
      background 320ms cubic-bezier(.16,1,.3,1),
      border-color 320ms cubic-bezier(.16,1,.3,1);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 1;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition:
      transform 240ms cubic-bezier(.2,.8,.2,1),
      box-shadow var(--transition),
      background 240ms cubic-bezier(.2,.8,.2,1),
      color 240ms cubic-bezier(.2,.8,.2,1),
      border-color 240ms cubic-bezier(.2,.8,.2,1);
}
a:not([class]) {
    color: #0b3b49;
    transition: color var(--transition), text-shadow var(--transition);
    text-decoration-color: rgba(255,107,53,.35);
    text-underline-offset: 3px;
}
a:not([class]):hover {
    text-shadow: 0 6px 18px rgba(255,107,53,.22);
}

/* ========== 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:
                      radial-gradient(600px 220px at 10% 0%, rgba(255,107,53,.12) 0%, rgba(255,107,53,0) 55%),
                      linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.78) 100%);
                    border: 1px solid rgba(var(--rgb-primary), .14);
                }

/* 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; }
                .feature-list .card {
                    background:
                      radial-gradient(500px 200px at 80% -10%, rgba(11,59,73,.18) 0%, rgba(11,59,73,0) 60%),
                      linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.74) 100%);
                    border: 1px solid rgba(11,59,73,.14);
                    box-shadow:
                      0 1px 0 rgba(255,255,255,.60) inset,
                      0 18px 45px rgba(11,59,73,.16),
                      0 6px 18px rgba(255,107,53,.10);
                }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
                .hero-inner .card {
                    border: 1px solid rgba(255,255,255,.22);
                    background:
                      radial-gradient(900px 300px at 10% -10%, rgba(255,107,53,.32) 0%, rgba(255,107,53,0) 60%),
                      radial-gradient(650px 260px at 90% 0%, rgba(0,0,0,.22) 0%, rgba(0,0,0,0) 62%),
                      linear-gradient(180deg, rgba(255,255,255,.12) 0%, rgba(255,255,255,.06) 100%);
                    box-shadow:
                      0 1px 0 rgba(255,255,255,.18) inset,
                      0 26px 70px rgba(0,0,0,.28),
                      0 10px 25px rgba(11,59,73,.20);
                    color: rgba(255,255,255,.92);
                }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list .card {
                    background:
                      radial-gradient(500px 180px at 15% 0%, rgba(255,107,53,.14) 0%, rgba(255,107,53,0) 58%),
                      linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.74) 100%);
                    border: 1px solid rgba(11,59,73,.12);
                }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid .card {
    border: 1px solid rgba(255,107,53,.18);
    background:
      linear-gradient(180deg, rgba(255,246,230,.95) 0%, rgba(255,243,214,.78) 100%);
    box-shadow:
      0 1px 0 rgba(255,255,255,.55) inset,
      0 18px 42px rgba(255,107,53,.14),
      0 6px 18px rgba(11,59,73,.10);
}

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card {
    border: 1px solid rgba(11,59,73,.14);
    background:
      radial-gradient(700px 250px at 100% -20%, rgba(11,59,73,.18) 0%, rgba(11,59,73,0) 60%),
      linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.74) 100%);
}

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid .card {
                    border: 1px solid rgba(11,59,73,.14);
                    background:
                      radial-gradient(520px 200px at 50% -10%, rgba(255,107,53,.18) 0%, rgba(255,107,53,0) 58%),
                      linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.76) 100%);
                    box-shadow:
                      0 1px 0 rgba(255,255,255,.60) inset,
                      0 16px 42px rgba(11,59,73,.13),
                      0 6px 18px rgba(0,0,0,.07);
                }

/* cta: card-style */
.cta-inner {
    background:
      radial-gradient(900px 380px at 20% -10%, rgba(255,107,53,.30) 0%, rgba(255,107,53,0) 60%),
      radial-gradient(650px 260px at 90% 0%, rgba(11,59,73,.24) 0%, rgba(11,59,73,0) 62%),
      linear-gradient(135deg, #fff7e6 0%, #ffe8c1 45%, #fff3d6 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    border: 1px solid rgba(255,107,53,.22);
    box-shadow:
      0 1px 0 rgba(255,255,255,.65) inset,
      0 24px 70px rgba(11,59,73,.18),
      0 12px 26px rgba(255,107,53,.18);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
      0 1px 0 rgba(255,255,255,.62) inset,
      0 24px 75px rgba(11,59,73,.22),
      0 10px 25px rgba(255,107,53,.18);
    border-color: rgba(255,107,53,.28);
}
.hero, [class*="hero"], section:first-of-type {
    background:
      linear-gradient(135deg,
        rgba(255,255,255,.10) 0%,
        rgba(255,255,255,0) 40%),
      linear-gradient(135deg, #0b3b49 0%, #062531 55%, #0b3b49 100%);
    border-top-color: rgba(255,255,255,.12);
    box-shadow:
      0 1px 0 rgba(255,255,255,.10) inset,
      0 30px 90px rgba(0,0,0,.22);
}
.card { border: 1px solid rgba(var(--rgb-primary), .18); }

section:nth-of-type(odd) { background:
    linear-gradient(180deg, rgba(255,255,255,.88) 0%, rgba(255,255,255,.72) 100%); }
section:nth-of-type(even) { background:
    radial-gradient(1200px 420px at 10% -20%, rgba(255,107,53,.16) 0%, rgba(255,107,53,0) 62%),
    linear-gradient(180deg, rgba(255,246,230,.92) 0%, rgba(255,243,214,.78) 100%); }

section:first-of-type { background:
    radial-gradient(1000px 380px at 15% -10%, rgba(255,107,53,.24) 0%, rgba(255,107,53,0) 60%),
    radial-gradient(900px 350px at 90% 0%, rgba(255,255,255,.14) 0%, rgba(255,255,255,0) 55%),
    linear-gradient(135deg, #0b3b49 0%, #062531 60%, #0b3b49 100%); }
section:nth-of-type(3n) { background:
    linear-gradient(180deg, rgba(255,255,255,.90) 0%, rgba(255,255,255,.72) 100%); }
section:nth-of-type(4n) { background:
    radial-gradient(900px 360px at 10% -15%, rgba(11,59,73,.22) 0%, rgba(11,59,73,0) 60%),
    linear-gradient(180deg, rgba(255,246,230,.92) 0%, rgba(255,243,214,.78) 100%); }

section:first-of-type, .hero, [class*="hero"] { color: rgba(255,255,255,.92); }
section:first-of-type a:not([class]), .hero a:not([class]), [class*="hero"] a:not([class] ) { color: rgba(255,245,210,.96); text-shadow: 0 10px 30px rgba(255,107,53,.14); }
section:first-of-type a:not([class]):hover, .hero a:not([class]):hover, [class*="hero"] a:not([class]):hover { text-shadow: 0 14px 40px rgba(255,107,53,.22); }

button:focus, a:focus, .btn:focus, [class*="btn"]:focus {
    outline: 3px solid rgba(255,107,53,.35);
    outline-offset: 3px;
    border-radius: var(--radius-md);
}
*::selection { background: rgba(255,107,53,.24); color: var(--color-text); }
*::-moz-selection { background: rgba(255,107,53,.24); color: var(--color-text); }

/* 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; }
    section:first-of-type { box-shadow: 0 18px 55px rgba(0,0,0,.18); }
}
@media (max-width: 640px) {
    :root { --space-section: 2.25rem; --space-card: 1.2rem; --space-gap: 1.05rem; --transition: 240ms cubic-bezier(.2,.8,.2,1); --radius-md: 20px; --radius-lg: 22px; --radius-xl: 26px; }
    .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; padding: 2.15rem; }
    section:first-of-type { border-top-color: rgba(255,255,255,.10); }
}