.sec-head { text-align: center; margin-bottom: 48px; }
    .sec-head h2 { font-size: 34px; font-weight: 800; letter-spacing: -.4px; margin-bottom: 8px; color: var(--primary); }
    .sec-head .underline { display: block; width: 50px; height: 3px; background: var(--gold); margin: 0 auto 12px auto; border-radius: 2px; }
    .sec-head p { color: var(--text-muted); font-size: 15px; }

    section { padding: 80px 0; }
    section:nth-of-type(odd) { background: var(--white); }
    section:nth-of-type(even) { background: var(--bg); }


    /* ==========================================
       2. 页面专属样式 (仅限 峰会.html 使用)
    ========================================== */

    /* 页面 Banner */
    .page-banner { height: 360px; position: relative; overflow: hidden; }
    .page-banner-bg { width: 100%; height: 100%; background: url('../1015-1920x900.jpg') center/cover no-repeat; }
    .page-banner-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(58,58,58,.55) 0%, rgba(58,58,58,.85) 100%); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; color: #fff; }
    .page-banner-overlay h1 { font-size: 46px; font-weight: 800; margin-bottom: 16px; letter-spacing: -.5px; }
    .page-banner-overlay p { font-size: 18px; color: rgba(255,255,255,.75); max-width: 700px; line-height: 1.6; }

    /* 介绍区 */
    .intro-section { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
    .intro-text h3 { font-size: 28px; font-weight: 800; color: var(--primary); margin-bottom: 24px; }
    .intro-text p { font-size: 16px; color: var(--text-mid); margin-bottom: 18px; line-height: 1.8; }
    .intro-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
    .intro-image img { width: 100%; display: block; transition: transform .4s; }
    .intro-image img:hover { transform: scale(1.03); }

    /* --- 峰会亮点：左序号大列表形式 --- */
    .highlight-list { display: flex; gap: 24px;  margin: 0 auto; justify-content: space-between;}
    .highlight-item {
      gap: 30px; padding: 28px;
      background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border);
      box-shadow: var(--shadow-sm); transition: all .35s cubic-bezier(.25,.46,.45,.94);
      position: relative; overflow: hidden;flex: 1;text-align: center;
    }
    /* 左侧金色竖条装饰 */
    .highlight-item::before {
      content: ''; position: absolute; left: 0; top: 0; bottom: 0;
      width: 4px; background: linear-gradient(180deg, var(--gold), var(--gold-bright));
      transform: scaleY(0); transition: transform .35s; transform-origin: bottom;
    }
    
    
    .hl-num {
      font-size: 42px; font-weight: 900; color: var(--border);
      line-height: 1; flex-shrink: 0; transition: color .35s; width: 60px; text-align: center;
    }
    .highlight-item:hover .hl-num { color: var(--gold); }
    
    .hl-content h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
    .hl-content p { font-size: 15px; color: var(--text-muted); }

    /* --- 峰会设置：横向图文卡片网格 --- */
    .settings-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .setting-card {
      background: var(--bg-card); border-radius: var(--radius); padding: 32px;
      box-shadow: var(--shadow-sm); border: 1px solid var(--border);
      display: flex; gap: 24px; align-items: flex-start;
      transition: all .35s cubic-bezier(.25,.46,.45,.94); cursor: pointer;
    }
    .setting-card::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 40px; height: 2px; background: var(--gold); border-radius: 2px; opacity: 0; transition: all .35s; }
    .setting-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold); }
    
    .setting-icon {
      width: 64px; height: 64px; border-radius: 16px; display: flex; flex-shrink: 0;
      align-items: center; justify-content: center;
      transition: transform .3s, box-shadow .3s;
    }
    .setting-card:hover .setting-icon { transform: scale(1.05); }
    .setting-icon svg { width: 30px; height: 30px; }
    
    .setting-card:nth-child(1) .setting-icon { background: linear-gradient(135deg, #6366F1, #8B5CF6); box-shadow: 0 4px 18px rgba(99,102,241,.22); }
    .setting-card:nth-child(2) .setting-icon { background: linear-gradient(135deg, #F59E0B, #EF4444); box-shadow: 0 4px 18px rgba(245,158,11,.22); }
    .setting-card:nth-child(3) .setting-icon { background: linear-gradient(135deg, #3B82F6, #2DD4BF); box-shadow: 0 4px 18px rgba(59,130,246,.22); }
    .setting-card:nth-child(4) .setting-icon { background: linear-gradient(135deg, #8B5CF6, #EC4899); box-shadow: 0 4px 18px rgba(139,92,246,.22); }

    .si-body { flex: 1; }
    .si-body h3 {display: flex; font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
    .si-body p { font-size: 15px; color: var(--text-muted);  line-height: 1.6; }
    .setting-tag {
      display: inline-block; background: var(--gold-pale); color: var(--gold-bright);
      font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 20px;
      border: 1px solid rgba(210,166,105,.2);
    }
	.si-body em{
		font-style: normal;
		align-self: center;
		margin-right: 15px;
	}
    /* --- 报名区域：通栏背景图 --- */
    .register-banner { height: 400px; position: relative; overflow: hidden; background: #fff; }
    .register-banner-bg { width: 100%; height: 350px; background: url('../180-1920x800.jpg') center/cover no-repeat; }
    .register-banner-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(58,58,58,.85) 0%, rgba(45, 43, 40,.9) 100%);
      display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; color: #fff;
    }
    .register-banner-overlay h2 { font-size: 38px; font-weight: 800; margin-bottom: 16px; letter-spacing: -.3px; }
    .register-banner-overlay::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0;
      height: 3px; background: linear-gradient(90deg, transparent, var(--gold), transparent);
    }
    .register-desc { font-size: 17px; max-width: 700px; margin: 0 auto 36px; color: rgba(255,255,255,.7); line-height: 1.8; }
    .register-btn {
      display: inline-block; background: linear-gradient(135deg, var(--gold), var(--gold-bright));
      color: var(--primary); font-size: 17px; font-weight: 700; padding: 18px 60px;
      border-radius: 50px; text-decoration: none; transition: all .22s;
      box-shadow: 0 6px 24px rgba(210,166,105,.35);
    }
    .register-btn:hover { box-shadow: 0 10px 36px rgba(210,166,105,.5); transform: translateY(-3px); }
    .register-tip { margin-top: 32px; font-size: 14px; color: rgba(255,255,255,.4); }

    /* 更多活动卡片 */
    .events-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .event-card {
      background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
      box-shadow: var(--shadow-sm); border: 1px solid var(--border);
      transition: all .35s cubic-bezier(.25,.46,.45,.94); cursor: pointer;
    }
    .event-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .event-card img { width: 100%; height: 200px; object-fit: cover; }
    .event-card-body { padding: 24px; }
    .event-card-body h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
    .event-card-body p { font-size: 15px; color: var(--text-muted); }

    /* 专属响应式 */
    @media (max-width: 768px) {
		.si-body h3 {
		    justify-content: center;
		}
		.highlight-list{
			flex-wrap: wrap;flex: initial;
		}
      .page-banner { height: 260px; }
      .page-banner-overlay h1 { font-size: 28px; }
      .container { padding: 0 16px; }
      section { padding: 56px 0; }
      .intro-section { grid-template-columns: 1fr; gap: 30px; }
      .highlight-item { flex-direction: column; gap: 12px; padding: 24px; }
      .hl-num { font-size: 32px; width: auto; }
      .settings-grid { grid-template-columns: 1fr; }
      .setting-card { flex-direction: column; align-items: center; text-align: center; }
      .events-grid { grid-template-columns: 1fr; }
      .register-banner { height: 360px; }
      .register-banner-overlay h2 { font-size: 26px; }
      .register-btn { padding: 14px 40px; font-size: 15px; }
    }
	.highlight-icon {
	  width: 64px; height: 64px; border-radius: 16px; display: inline-flex;
	  align-items: center; justify-content: center; margin-bottom: 20px;
	  transition: transform .3s, box-shadow .3s;
	}
	.highlight-card:hover .highlight-icon { transform: scale(1.05); }
	.highlight-icon svg { width: 30px; height: 30px; }
	
	.highlight-card:nth-child(1) .highlight-icon { background: linear-gradient(135deg, #F59E0B, #EF4444); box-shadow: 0 4px 18px rgba(245,158,11,.22); }
	.highlight-card:nth-child(2) .highlight-icon { background: linear-gradient(135deg, #06B6D4, #3B82F6); box-shadow: 0 4px 18px rgba(6,182,212,.22); }
	.highlight-card:nth-child(3) .highlight-icon { background: linear-gradient(135deg, #10B981, #14B8A6); box-shadow: 0 4px 18px rgba(16,185,129,.22); }
	.hl-content{flex: 1;}
	.highlight-card::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 40px; height: 2px; background: var(--gold); border-radius: 2px; opacity: 0; transition: all .35s; }
	.highlight-card:hover::after { opacity: 1; width: 80px; }
	.highlight-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
	.highlight-card a,.event-card a{text-decoration: none;}