/* iLGQ1994小站 · 与冰粒题库统一的 HE 染色视觉语言
   苏木精 ink #312B52 · 伊红 eosin #C24D6E · 天蓝 moss #2E86C1 · 切片纸 paper #FAF7F5 */
:root {
  --ink: #312B52;
  --ink-2: #4A4370;
  --eosin: #C24D6E;
  --eosin-soft: #F9E7EC;
  --moss: #2E86C1;
  --moss-soft: #E3F1FA;
  --paper: #FAF7F5;
  --glass: #FFFFFF;
  --line: #E7E1EA;
  --haze: #8B85A6;
  --serif: Georgia, "Times New Roman", "STZhongsong", serif;
  --sans: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  --shadow: 0 1px 2px rgba(49, 43, 82, .06), 0 4px 16px rgba(49, 43, 82, .05);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 15.5px; line-height: 1.7; }
/* 首页淡红蓝网格背景（SVG 网格） */
body.home {
  background-color: var(--paper);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cpath d='M120 0H0v120' fill='none' stroke='%232E86C1' stroke-opacity='.06'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Cpath d='M40 0H0v40' fill='none' stroke='%23C24D6E' stroke-opacity='.07'/%3E%3C/svg%3E");
}
a { color: inherit; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 18px; }

/* 顶栏 */
.topbar { position: sticky; top: 0; z-index: 30; background: rgba(255, 255, 255, .88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.topbar-in { display: flex; align-items: center; gap: 14px; height: 54px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 16.5px; text-decoration: none; letter-spacing: .5px; }
.brand .avatar { width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--line); object-fit: cover; }
.hamburger { display: none; width: 38px; height: 38px; margin-left: -8px; border-radius: 11px; align-items: center; justify-content: center; color: var(--ink-2); background: transparent; border: none; flex-shrink: 0; }
.topnav { margin-left: auto; display: flex; gap: 4px; overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 62vw; }
.topnav a { flex-shrink: 0; padding: 7px 11px; border-radius: 10px; font-size: 13.5px; color: var(--ink-2); text-decoration: none; white-space: nowrap; }
.topnav a:hover { background: #F1EDF5; }
@media (max-width: 899px) {
  .hamburger { display: inline-flex; }
  .topnav { display: none; }
}

/* 侧边栏（手机端） */
.sb-mask { position: fixed; inset: 0; background: rgba(49, 43, 82, .35); z-index: 49; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.sb-mask.show { opacity: 1; pointer-events: auto; }
.sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: 236px; z-index: 50; background: var(--glass); border-right: 1px solid var(--line); transform: translateX(-100%); transition: transform .2s ease; box-shadow: 4px 0 24px rgba(49, 43, 82, .08); display: flex; flex-direction: column; padding: 18px 12px 12px; }
.sidebar.open { transform: none; }
@media (min-width: 900px) { .sidebar, .sb-mask { display: none !important; } }
.sb-head { display: flex; align-items: center; gap: 11px; padding: 4px 10px 14px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.sb-head .avatar { width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--line); object-fit: cover; }
.sb-title { font-weight: 700; font-size: 15.5px; letter-spacing: .5px; }
.sb-motto { font-size: 11px; color: var(--haze); }
.sb-nav a { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 11px; margin-bottom: 2px; color: var(--ink-2); font-size: 14.5px; text-decoration: none; }
.sb-nav a:hover { background: #F1EDF5; }
.sb-nav a svg { width: 16px; height: 16px; flex-shrink: 0; }
.sb-foot { margin-top: auto; font-size: 11.5px; color: var(--haze); padding: 10px 12px 4px; border-top: 1px solid var(--line); }

/* 首页 */
.hero { padding: 68px 0 46px; text-align: center; }
.hero-title { margin: 0 0 26px; font-family: var(--serif); font-size: 44px; letter-spacing: 4px; color: var(--ink); }
.hc-btn { display: inline-block; padding: 13px 46px; border-radius: 999px; background: linear-gradient(135deg, #C9537A, #A63D5C); color: #fff; font-weight: 700; font-size: 15.5px; text-decoration: none; box-shadow: 0 6px 18px rgba(166, 61, 92, .30); }

.section-label { margin: 26px 2px 12px; font-size: 13px; font-weight: 700; color: var(--haze); letter-spacing: 2px; }
.blog-item { display: block; background: var(--glass); border: 1px solid var(--line); border-radius: 14px; padding: 15px 18px; text-decoration: none; margin-bottom: 10px; box-shadow: var(--shadow); }
.blog-item:hover { border-color: #D8CFE0; }
.blog-item .b-title { font-weight: 700; font-size: 15.5px; color: var(--ink); }
.blog-item .b-meta { font-size: 12px; color: var(--haze); margin-top: 3px; }
.blog-item .b-digest { font-size: 13px; color: var(--ink-2); margin-top: 6px; line-height: 1.6; }

.home-foot { text-align: center; padding: 34px 0 26px; font-size: 12px; color: var(--haze); }
.foot-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; margin-bottom: 12px; }
.foot-links a { color: var(--ink-2); font-size: 13.5px; text-decoration: none; }
.foot-links a:hover { color: var(--eosin); }

/* 子页面 */
.page-card { background: var(--glass); border: 1px solid var(--line); border-radius: 18px; padding: 26px 24px; margin: 20px 0 8px; box-shadow: var(--shadow); }
.page-title { margin: 0 0 6px; font-family: var(--serif); font-size: 24px; letter-spacing: 1px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.page-content { padding-top: 14px; }
.page-content h1 { font-size: 19px; margin: 26px 0 10px; padding-left: 10px; border-left: 4px solid var(--eosin); line-height: 1.4; }
.page-content h2 { font-size: 17px; margin: 24px 0 8px; }
.page-content h3 { font-size: 15.5px; margin: 18px 0 6px; color: var(--ink-2); }
.page-content p { margin: 8px 0; font-size: 15px; line-height: 1.9; word-break: break-all; }
.page-content strong { color: var(--eosin); }
.page-content ul, .page-content ol { margin: 8px 0; padding-left: 22px; }
.page-content li { margin: 4px 0; }
.page-content hr { border: none; border-top: 1px dashed var(--line); margin: 18px 0; }
.page-content a { color: var(--moss); }
.page-content img { max-width: 100%; border-radius: 10px; }

.site-foot { text-align: center; font-size: 12px; color: var(--haze); padding: 22px 18px 30px; }

@media (max-width: 560px) {
  .hero { padding: 52px 0 38px; }
  .hero-title { font-size: 34px; }
  .topbar-in { gap: 10px; }
}
}