/* 技術觀點（/insights/）共用樣式：沿用首頁品牌色與字型 */
:root {
    --primary: #003F7F;
    --primary-dark: #002A5C;
    --accent: #0077CC;
    --label: #00609E;
    --light-gray: #F4F7FA;
    --mid-gray: #DDE4EE;
    --text: #1A2233;
    --text-muted: #5A6A7E;
    --heading: 'Barlow', 'PingFang TC', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang TC', 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: #fff;
    padding-top: 68px;
}
img { max-width: 100%; }

/* 語言切換（與首頁同一套 class） */
.lang-zh { display: none !important; }
body.zh .lang-en { display: none !important; }
body.zh .lang-zh { display: block !important; }
.lang-zh-inline { display: none !important; }
body.zh .lang-zh-inline { display: inline !important; }
body.zh .lang-en-inline { display: none !important; }

/* 導覽列 */
.ins-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 68px; padding: 0 6%;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    background: #fff;
    box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}
.ins-brand {
    display: flex; align-items: center; gap: 10px;
    text-decoration: none; color: var(--primary-dark);
    font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: 21px; white-space: nowrap;
}
.ins-brand img { width: 40px; height: 40px; border-radius: 6px; display: block; }
.ins-links { display: flex; gap: 28px; }
.ins-links a { text-decoration: none; color: var(--text); font-weight: 600; font-size: 15px; white-space: nowrap; }
.ins-links a[aria-current="page"] { color: var(--accent); }
@media (hover: hover) { .ins-links a:hover { color: var(--accent); } }

.btn-lang {
    position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 120;
    display: inline-flex; align-items: center; gap: 7px;
    background: var(--primary); color: #fff; border: 0; border-radius: 999px;
    padding: 11px 18px; font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
    box-shadow: 0 6px 18px rgba(0,42,92,0.3);
}
.btn-lang svg { flex: none; }
@media (hover: hover) { .btn-lang:hover { background: var(--primary-dark); } }

/* 文章頁首 */
.ins-wrap { max-width: 760px; margin: 0 auto; padding-inline: 24px; }
.ins-head { padding-block: 56px 30px; }
.ins-crumb {
    font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: 14px;
    letter-spacing: 0.12em; text-transform: uppercase; color: var(--label); margin-bottom: 14px;
}
.ins-crumb a { color: inherit; text-decoration: none; }
@media (hover: hover) { .ins-crumb a:hover { text-decoration: underline; } }
.ins-head h1 {
    font-family: var(--heading); font-weight: 800;
    font-size: clamp(30px, 4.6vw, 46px); line-height: 1.18; color: var(--primary-dark);
}
.ins-dek { margin-top: 18px; font-size: 19px; line-height: 1.6; color: var(--text-muted); }
.ins-meta { margin-top: 20px; font-size: 14px; color: var(--text-muted); }

.ins-cover { max-width: 1000px; margin: 0 auto; padding-inline: 24px; }
.ins-cover img {
    display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover;
    border-radius: 14px; box-shadow: 0 24px 48px -28px rgba(0,42,92,0.45);
}

/* 內文 */
.ins-body { padding-block: 48px 8px; font-size: 17.5px; line-height: 1.8; }
body.zh .ins-body { font-size: 17px; line-height: 1.95; letter-spacing: 0.02em; }
.ins-body p { margin: 0 0 1.2em; }
.ins-body h2 {
    font-family: var(--heading); font-weight: 700;
    font-size: clamp(23px, 3vw, 28px); line-height: 1.3; color: var(--primary-dark);
    margin: 2.1em 0 0.7em;
}
.ins-body ul, .ins-body ol { margin: 0 0 1.3em 1.3em; }
.ins-body li { margin-bottom: 0.55em; padding-left: 0.2em; }
.ins-body strong { color: var(--primary-dark); }

.ins-callout {
    background: var(--light-gray);
    border-radius: 10px; padding: 20px 24px; margin: 1.6em 0;
}
.ins-callout > strong { display: block; margin-bottom: 8px; }
.ins-callout ul { margin-bottom: 0; }

.ins-fig { margin: 2em auto; max-width: 540px; text-align: center; }
.ins-fig img { display: block; width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--mid-gray); }
.ins-fig--phone { max-width: 420px; }
.ins-fig--phone img { width: 160px; margin: 0 auto; border: 0; border-radius: 0; }
.ins-fig figcaption { font-size: 14px; color: var(--text-muted); margin-top: 10px; line-height: 1.5; letter-spacing: 0; }

.table-wrap { overflow-x: auto; margin: 1.4em 0 1.6em; border: 1px solid var(--mid-gray); border-radius: 10px; }
.ins-body table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 15.5px; line-height: 1.5; letter-spacing: 0; }
.ins-body th, .ins-body td { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--mid-gray); }
.ins-body th { background: var(--light-gray); color: var(--primary-dark); font-weight: 700; }
.ins-body tbody tr:last-child td { border-bottom: 0; }
.ins-body td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.ins-body tr.total td { font-weight: 700; color: var(--primary-dark); background: #F9FBFD; }

.ins-note {
    font-size: 14.5px !important; line-height: 1.7 !important; color: var(--text-muted);
    background: var(--light-gray); border-radius: 10px; padding: 14px 18px;
}
.ins-close {
    font-size: 1.1em; font-weight: 600; color: var(--primary-dark);
    border-top: 1px solid var(--mid-gray); padding-top: 1.4em; margin-top: 2.2em !important;
}
.ins-src { font-size: 14px !important; line-height: 1.65 !important; color: var(--text-muted); }

/* 文末聯絡區 */
.ins-cta { background: var(--primary-dark); color: #fff; border-radius: 16px; padding: 32px 34px; margin: 28px 0 56px; }
.ins-cta h2 { font-family: var(--heading); font-size: 24px; font-weight: 700; line-height: 1.3; margin-bottom: 10px; }
.ins-cta p { color: rgba(255,255,255,0.85); font-size: 16px; line-height: 1.7; margin-bottom: 20px; }
.ins-btns { display: flex; flex-wrap: wrap; gap: 12px; }
.ins-btn {
    display: inline-block; background: #fff; color: var(--primary-dark);
    font-weight: 700; font-size: 15px; padding: 12px 22px; border-radius: 8px; text-decoration: none;
}
.ins-btn.ghost { background: transparent; color: #fff; box-shadow: inset 0 0 0 2px rgba(255,255,255,0.6); }
/* 按鈕本身帶語言 class 時，顯示成 inline-block 才保得住內距 */
body:not(.zh) .ins-btn.lang-en-inline, body.zh .ins-btn.lang-zh-inline { display: inline-block !important; }
@media (hover: hover) { .ins-btn:hover { opacity: 0.9; } }

/* 延伸閱讀 */
.ins-more { border-top: 1px solid var(--mid-gray); padding-block: 34px 72px; }
.ins-more h2 {
    font-family: 'Rajdhani', sans-serif; font-size: 15px; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--label); margin-bottom: 8px;
}
.ins-more a {
    display: block; padding: 14px 0; border-bottom: 1px solid var(--mid-gray);
    text-decoration: none; color: var(--primary-dark); font-weight: 600; font-size: 17px; line-height: 1.45;
}
.ins-more .cat { font-size: 13px; color: var(--text-muted); font-weight: 500; margin-bottom: 2px; }
@media (hover: hover) { .ins-more a:hover { color: var(--accent); } }

/* 列表頁與文章卡片 */
.ins-page { max-width: 1080px; margin: 0 auto; padding-inline: 24px; }
.ins-list-head { padding-block: 64px 8px; max-width: 760px; }
.insights-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; padding: 36px 0 88px; }
.insight-card {
    display: flex; flex-direction: column; background: #fff;
    border: 1px solid var(--mid-gray); border-radius: 12px; overflow: hidden;
    text-decoration: none; color: inherit; transition: transform 0.2s, box-shadow 0.2s;
}
.insight-card img { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover; }
.insight-card:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (hover: hover) { .insight-card:hover { transform: translateY(-4px); box-shadow: 0 18px 36px -18px rgba(0,42,92,0.35); } }
.insight-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.insight-cat {
    font-family: 'Rajdhani', sans-serif; font-weight: 700; font-size: 13px;
    letter-spacing: 0.12em; text-transform: uppercase; color: var(--label);
}
.insight-body h2, .insight-body h3 { font-family: var(--heading); font-size: 20px; line-height: 1.35; color: var(--primary-dark); font-weight: 700; }
.insight-body p { font-size: 15px; line-height: 1.6; color: var(--text-muted); }
.insight-more { margin-top: auto; padding-top: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }

/* 標題平均分行，避免最後一行只剩一個字 */
.ins-head h1, .ins-body h2, .ins-cta h2, .insight-body h2, .insight-body h3, .ins-more a { text-wrap: balance; }
body.zh .ins-head h1, body.zh .ins-body h2, body.zh .ins-cta h2, body.zh .insight-body h2, body.zh .insight-body h3, body.zh .ins-more a { text-wrap: pretty; }

/* 中文標題裡不該拆開的詞組 */
.nw { white-space: nowrap; }
@media (max-width: 360px) { .nw { white-space: normal; } }

/* 頁尾 */
.ins-foot { background: var(--primary-dark); color: rgba(255,255,255,0.8); padding: 36px 6% calc(36px + env(safe-area-inset-bottom, 0px)); font-size: 14px; }
.ins-foot-in { max-width: 1080px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: center; }
.ins-foot-brand { font-weight: 700; color: #fff; margin-bottom: 4px; }
.ins-foot-links { display: flex; flex-wrap: wrap; gap: 20px; }
.ins-foot-links a { color: rgba(255,255,255,0.85); text-decoration: none; }
@media (hover: hover) { .ins-foot-links a:hover { color: #fff; } }

@media (max-width: 720px) {
    .insights-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .ins-nav { padding: 0 16px; }
    .ins-brand { font-size: 18px; }
    .ins-brand img { width: 34px; height: 34px; }
    .ins-links { gap: 16px; }
    .ins-links a { font-size: 14px; }
    .ins-wrap, .ins-page { padding-inline: 18px; }
    .ins-cover { padding-inline: 16px; }
    .ins-head { padding-block: 36px 24px; }
    .ins-dek { font-size: 17px; }
    .ins-body, body.zh .ins-body { font-size: 16.5px; }
    .ins-cta { padding: 26px 22px; }
    .ins-list-head { padding-top: 40px; }
    .ins-body table { min-width: 0; font-size: 14px; }
    .ins-body th, .ins-body td { padding: 10px 10px; }
    .ins-body td.num { white-space: normal; }
}