/*
Theme Name: TRIVARO
Theme URI: https://www.trike-motorcycle.com/
Author: TRIVARO
Description: 出口询盘型 B2B 主题（三轮摩托车）。V3 视觉：压缩体全大写标题、方正无圆角、斜切色块、按品类着色的车型卡、深色数据带。结构规律参考了行业标杆（Polaris Slingshot）的排版纪律与版面节奏；字体、配色、文案、图形均为自有。
Version: 0.3.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: trivaro
*/

/* ==========================================================================
   0. 字体（自托管，Big Shoulders Display · SIL OFL 1.1）
   ========================================================================== */
@font-face {
	font-family: "Big Shoulders Display";
	src: url("assets/fonts/big-shoulders-display-latin.woff2") format("woff2");
	font-weight: 100 900;
	font-style: normal;
	font-display: swap;
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
	font-family: "Big Shoulders Display";
	src: url("assets/fonts/big-shoulders-display-latin-ext.woff2") format("woff2");
	font-weight: 100 900;
	font-style: normal;
	font-display: swap;
	unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ==========================================================================
   1. 设计变量
   ========================================================================== */
:root {
	/* 色板：近黑工业底 + 信号橙（自有品牌色，非对标站配色） */
	--c-ink: #0b0e12;
	--c-ink-2: #151a21;
	--c-ink-3: #1f2731;
	--c-steel: #55616e;
	--c-steel-2: #93a0ad;
	--c-line: #e3e6ea;
	--c-line-2: #cfd5dc;
	--c-paper: #ffffff;
	--c-mist: #f1f2f4;
	--c-mist-2: #e8eaed;
	--c-signal: #ff5a1f;
	--c-signal-d: #e24a12;
	/* 按钮专用深一档橙：白字对比度 5.18:1（AA 达标）；亮橙只用于大字号强调与线条（≥3:1 即可） */
	--c-signal-btn: #c2410c;
	--c-signal-btn-d: #a6350a;
	--c-amber: #ffb020;
	--c-on-dark: rgba(255, 255, 255, 0.72);
	--c-hair-dark: rgba(255, 255, 255, 0.14);

	/* 品类色（车型卡渐变）：起始色均已按白字 ≥4.5:1 校核，色弱用户也能靠明度+文案区分 */
	--tint-cargo-a: #c2410c;    --tint-cargo-b: #5c1a04;
	--tint-electric-a: #0b7d76; --tint-electric-b: #062b33;
	--tint-passenger-a: #7d4a00;--tint-passenger-b: #35200a;
	--tint-gas-a: #a8322c;      --tint-gas-b: #3a0a0e;

	/* 字体 */
	--f-display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
	--f-body: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
	--f-mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;

	/* 字号（流体） */
	--fs-d1: clamp(2.5rem, 7vw, 5.5rem);
	--fs-d2: clamp(1.875rem, 4.4vw, 3.25rem);
	--fs-d3: clamp(1.375rem, 2.6vw, 2rem);
	--fs-d4: clamp(1.125rem, 1.7vw, 1.375rem);
	--fs-lead: clamp(1rem, 1.15vw, 1.1875rem);
	--fs-body: 1rem;
	--fs-small: 0.8125rem;
	--fs-eyebrow: 0.6875rem;

	/* 间距 */
	--sp-section: clamp(3.25rem, 6.5vw, 6.5rem);
	--sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem; --sp-5: 1.5rem;
	--sp-6: 2rem; --sp-7: 3rem; --sp-8: 4rem;
	--gutter: clamp(1rem, 3vw, 2.5rem);
	--maxw: 1320px;
	--maxw-narrow: 860px;

	--header-h: 68px;
	--dur: 0.28s;
	--ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ==========================================================================
   2. 基础
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
	margin: 0;
	background: var(--c-paper);
	color: var(--c-ink);
	font-family: var(--f-body);
	font-size: var(--fs-body);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-signal); }
button { font: inherit; }
hr { border: 0; border-top: 1px solid var(--c-line); margin: var(--sp-7) 0; }
::selection { background: var(--c-signal); color: #fff; }
:focus-visible { outline: 3px solid var(--c-signal); outline-offset: 2px; }

h1, h2, h3, h4, h5, h6 {
	margin: 0 0 var(--sp-3);
	font-family: var(--f-display);
	font-weight: 700;
	text-transform: uppercase;
	line-height: 0.98;
	letter-spacing: 0.005em;
}
h1 { font-size: var(--fs-d1); }
h2 { font-size: var(--fs-d2); }
h3 { font-size: var(--fs-d3); }
h4 { font-size: var(--fs-d4); }
p { margin: 0 0 var(--sp-4); }
ul, ol { margin: 0 0 var(--sp-4); padding-left: 1.25rem; }

.display { font-family: var(--f-display); text-transform: uppercase; font-weight: 700; line-height: 0.95; }
.display--xl { font-size: var(--fs-d1); }
.display--lg { font-size: var(--fs-d2); }
.display--md { font-size: var(--fs-d3); }
.lead { font-size: var(--fs-lead); color: var(--c-steel); max-width: 62ch; }
.muted { color: var(--c-steel); }
.mono { font-family: var(--f-mono); font-size: 0.8125rem; }

.eyebrow {
	display: inline-flex; align-items: center; gap: var(--sp-3);
	margin: 0 0 var(--sp-4);
	font-family: var(--f-body);
	font-size: var(--fs-eyebrow); font-weight: 700;
	text-transform: uppercase; letter-spacing: 0.2em;
	color: var(--c-signal);
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.section--dark .eyebrow, .hero .eyebrow { color: var(--c-amber); }

.skip-link {
	position: absolute; left: -9999px; top: 0; z-index: 100;
	padding: var(--sp-3) var(--sp-5); background: var(--c-ink); color: #fff;
	font-size: var(--fs-small); font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
}
.skip-link:focus { left: 0; }
.screen-reader-text, .screen-reader-visually-hidden {
	position: absolute !important; width: 1px; height: 1px; overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px); white-space: nowrap;
}

/* ==========================================================================
   3. 布局容器
   ========================================================================== */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.container--narrow { max-width: var(--maxw-narrow); }
.section { padding: var(--sp-section) 0; }
.section--tight { padding: calc(var(--sp-section) * 0.6) 0; }
.section--surface { background: var(--c-mist); }
.section--dark { background: var(--c-ink); color: #fff; }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }
.section--dark .lead, .section--dark .muted { color: var(--c-on-dark); }
.section--ink-2 { background: var(--c-ink-2); color: #fff; }

.section-head { max-width: 760px; margin-bottom: var(--sp-7); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head p { margin-bottom: 0; }
.section-more { margin-top: var(--sp-6); }

.grid { display: grid; gap: var(--sp-5); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1024px) {
	.grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
	.grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* 工业网格纹理 / 斜纹 */
.hatch {
	background-image: repeating-linear-gradient(135deg, var(--c-ink) 0 1px, transparent 1px 9px);
	background-size: auto;
}
.section--dark .hatch { background-image: repeating-linear-gradient(135deg, rgba(255,255,255,.16) 0 1px, transparent 1px 9px); }

/* 斜切标签：本套视觉的标志性几何 */
.skew-tag {
	display: inline-block; padding: 0.7rem 1.5rem 0.6rem;
	background: var(--c-signal); color: #fff;
	font-family: var(--f-display); font-size: 1.125rem; font-weight: 700;
	text-transform: uppercase; letter-spacing: 0.06em; line-height: 1;
	transform: skewX(-12deg);
}
.skew-tag > span { display: inline-block; transform: skewX(12deg); }
.skew-tag--ink { background: var(--c-ink); }
.skew-tag--ghost { background: transparent; border: 2px solid var(--c-ink); color: var(--c-ink); }
.skew-tag--light { background: #fff; color: var(--c-ink); }
.skew-tag:hover { background: var(--c-signal-d); color: #fff; }

/* ==========================================================================
   4. 按钮
   ========================================================================== */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
	padding: 0.95rem 1.6rem;
	border: 2px solid transparent; border-radius: 0;
	background: var(--c-ink); color: #fff;
	font-family: var(--f-body); font-size: 0.75rem; font-weight: 700;
	text-transform: uppercase; letter-spacing: 0.14em; line-height: 1;
	cursor: pointer; text-align: center;
	transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn:hover { background: var(--c-ink-3); color: #fff; transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--c-signal-btn); color: #fff; }
.btn--primary:hover { background: var(--c-signal-btn-d); }
.btn--ghost { background: transparent; border-color: var(--c-line-2); color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }
.btn--light { background: #fff; color: var(--c-ink); }
.btn--light:hover { background: var(--c-amber); color: var(--c-ink); }
.btn--outline-light { background: transparent; border-color: rgba(255,255,255,.55); color: #fff; }
.btn--outline-light:hover { background: #fff; border-color: #fff; color: var(--c-ink); }
.btn--block { width: 100%; }
.btn--lg { padding: 1.15rem 2.1rem; font-size: 0.8125rem; letter-spacing: 0.16em; }
.btn__arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ==========================================================================
   5. 顶部公告条 + 双层页头
   ========================================================================== */
.announce {
	background: var(--c-ink); color: #fff;
	font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700;
}
.announce__inner {
	display: flex; align-items: center; justify-content: center; gap: var(--sp-5);
	min-height: 30px; padding: 0.25rem 0; text-align: center;
}
.announce a { color: var(--c-amber); }
.announce a:hover { color: #fff; }
.announce__dot { color: var(--c-signal); }

.site-header { position: sticky; top: 0; z-index: 60; background: #fff; border-bottom: 1px solid var(--c-line); }
.site-header__inner {
	display: flex; align-items: center; gap: var(--sp-5);
	min-height: var(--header-h);
}
.site-brand {
	font-family: var(--f-display); font-size: 1.85rem; font-weight: 800; letter-spacing: 0.01em;
	text-transform: uppercase; line-height: 1; color: var(--c-ink); position: relative; padding-bottom: 2px;
}
.site-brand::after { content: ""; position: absolute; left: 0; bottom: -3px; width: 34%; height: 4px; background: var(--c-signal); }
.site-brand small {
	display: block; font-family: var(--f-body); font-size: 0.5625rem; font-weight: 700;
	letter-spacing: 0.2em; color: var(--c-steel); text-transform: uppercase; margin-top: 6px;
}
.site-brand:has(img) { display: inline-flex; align-items: center; }
.site-brand:has(img)::after { display: none; }
.site-brand img { height: 46px; width: auto; max-width: 250px; }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; align-items: center; gap: var(--sp-2); margin: 0; padding: 0; list-style: none; }
.site-nav li { position: relative; }
.site-nav a {
	display: block; padding: 0.75rem 0.7rem;
	font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.13em;
	color: var(--c-ink); position: relative;
}
.site-nav a::after {
	content: ""; position: absolute; left: 0.7rem; right: 0.7rem; bottom: 0.5rem; height: 2px;
	background: var(--c-signal); transform: scaleX(0); transform-origin: left; transition: transform var(--dur) var(--ease);
}
.site-nav a:hover::after, .site-nav .current-menu-item > a::after { transform: scaleX(1); }
.site-nav .current-menu-item > a { color: var(--c-signal); }

/* 下拉面板 */
.nav-drop {
	position: absolute; top: 100%; left: 0; z-index: 70;
	min-width: 320px; padding: var(--sp-3) 0;
	background: #fff; border: 1px solid var(--c-line); border-top: 3px solid var(--c-signal);
	list-style: none; margin: 0;
	opacity: 0; visibility: hidden; transform: translateY(6px);
	transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.site-nav li:hover > .nav-drop, .site-nav li:focus-within > .nav-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.site-nav .nav-drop a { padding: 0.6rem 1.25rem; font-size: 0.6875rem; letter-spacing: 0.1em; display: flex; justify-content: space-between; gap: var(--sp-5); }
.site-nav .nav-drop a::after { display: none; }
.site-nav .nav-drop .count { color: var(--c-steel-2); font-weight: 700; }
.mega-foot { border-top: 1px solid var(--c-line); margin-top: var(--sp-2); padding: var(--sp-3) 1.25rem 0; }
.mega-foot a { padding: 0; font-size: 0.6875rem; color: var(--c-signal) !important; }
.nav-drop__mega-items { list-style: none; }
.nav-drop-toggle { display: none; }
.site-header.is-stuck { box-shadow: 0 12px 34px rgba(11, 14, 18, 0.10); }

.header-cta { margin-left: var(--sp-4); }
.nav-toggle { display: none; }

@media (max-width: 1080px) {
	.site-nav { position: fixed; inset: 0 0 0 auto; width: min(88vw, 400px); background: #fff; margin: 0;
		padding: 5.5rem 1.5rem 2rem; overflow-y: auto; transform: translateX(100%); transition: transform var(--dur) var(--ease); z-index: 65; }
	.site-nav.is-open { transform: translateX(0); box-shadow: -20px 0 60px rgba(0,0,0,.22); }
	.site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
	.site-nav > ul > li { position: relative; }
	.site-nav > ul > li > a { padding: 1rem 3rem 1rem 0; border-bottom: 1px solid var(--c-line); font-size: 0.875rem; }
	.site-nav > ul > li > a::after { left: 0; right: 0; bottom: 0.75rem; }
	.nav-drop-toggle { display: grid; place-items: center; position: absolute; right: 0; top: 0.35rem;
		width: 2.5rem; height: 2.5rem; background: var(--c-mist); border: 1px solid var(--c-line);
		border-radius: 0; cursor: pointer; }
	.nav-drop-toggle__icon { width: 10px; height: 10px; border-right: 2px solid var(--c-ink); border-bottom: 2px solid var(--c-ink);
		transform: rotate(45deg) translate(-1px, -1px); transition: transform var(--dur) var(--ease); }
	li.is-expanded > .nav-drop-toggle .nav-drop-toggle__icon { transform: rotate(-135deg) translate(-1px, -1px); }
	.nav-drop { position: static; opacity: 1; visibility: visible; transform: none; display: none;
		border: 0; border-left: 3px solid var(--c-signal); margin: 0.5rem 0 0.75rem 0.25rem; min-width: 0; padding: 0; }
	.nav-drop .mega-grid { grid-template-columns: minmax(0, 1fr); padding: 0 0.75rem; }
	li.is-expanded > .nav-drop { display: block; }
	.nav-toggle { display: inline-flex; align-items: center; gap: 0.5rem; margin-left: auto;
		padding: 0.7rem 0.9rem; background: var(--c-ink); color: #fff; border: 0; border-radius: 0;
		font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; cursor: pointer; }
	.header-cta { display: none; }
	body.nav-open { overflow: hidden; }
}

/* ==========================================================================
   6. Hero（首屏）
   ========================================================================== */
.hero {
	position: relative; overflow: hidden;
	background: var(--c-ink); color: #fff;
	--hero-image: none;
}
.hero::before {
	content: ""; position: absolute; inset: 0;
	background-image: var(--hero-image);
	background-size: cover; background-position: center;
	opacity: 0.5;
}
.hero::after {
	content: ""; position: absolute; inset: 0;
	background:
		radial-gradient(120% 90% at 78% 18%, rgba(255,90,31,.30) 0%, rgba(255,90,31,0) 58%),
		linear-gradient(160deg, rgba(11,14,18,.86) 0%, rgba(11,14,18,.94) 62%, rgba(11,14,18,1) 100%),
		repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 72px);
}
.hero__inner { position: relative; z-index: 2; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: var(--sp-7); align-items: center; }
@media (max-width: 1024px) { .hero__grid { grid-template-columns: minmax(0, 1fr); } }
.hero__art { display: grid; place-items: center; }
.hero__art svg { width: min(100%, 420px); height: auto; opacity: 0.9; }
@media (max-width: 1024px) { .hero__art { display: none; } }
.hero__copy { max-width: 900px; padding: clamp(1.5rem, 3.2vw, 2.5rem) 0 clamp(1.5rem, 2.4vw, 2.25rem); }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 4rem); line-height: 0.95; letter-spacing: 0.005em; margin-bottom: var(--sp-4); }
.hero h1 em { display: block; font-style: normal; color: var(--c-signal); }
.hero__lead { font-size: var(--fs-lead); color: var(--c-on-dark); max-width: 60ch; margin-bottom: var(--sp-6); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); }

.hero__facts { position: relative; z-index: 2; border-top: 1px solid var(--c-hair-dark); }
.hero__facts-title { display: flex; align-items: center; gap: var(--sp-3);
	font-family: var(--f-body); font-size: var(--fs-eyebrow); font-weight: 700;
	letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-steel-2); margin: 0; padding: var(--sp-4) 0 0; }
.hero__facts-title::after { content: ""; flex: 1; height: 1px; background: var(--c-hair-dark); }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; }
.facts > li { padding: var(--sp-4) var(--sp-5) var(--sp-5) 0; border-right: 1px solid var(--c-hair-dark); }
.facts > li:last-child { border-right: 0; }
.facts dt { font-size: 0.5625rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-steel-2); margin-bottom: 0.5rem; }
.facts dd { margin: 0; font-family: var(--f-display); font-size: clamp(1.75rem, 3.2vw, 2.75rem); font-weight: 700; text-transform: uppercase; line-height: 0.95; color: #fff; }
.facts dd span { display: block; font-family: var(--f-body); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-steel-2); margin-top: 0.4rem; }
.facts-note { font-size: 0.75rem; color: var(--c-steel-2); padding: 0 0 var(--sp-4); margin: 0; }
@media (max-width: 900px) { .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); } .facts > li:nth-child(2n) { border-right: 0; } }
@media (max-width: 520px) { .facts { grid-template-columns: minmax(0, 1fr); } .facts > li { border-right: 0; border-bottom: 1px solid var(--c-hair-dark); padding-right: 0; } }

/* 内页横幅 */
.page-hero { background: var(--c-ink); color: #fff; position: relative; overflow: hidden; padding: clamp(2.5rem, 5vw, 4.5rem) 0; }
.page-hero::after {
	content: ""; position: absolute; inset: 0;
	background: radial-gradient(90% 120% at 88% 10%, rgba(255,90,31,.26) 0%, rgba(255,90,31,0) 60%),
		repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 1px, transparent 1px 12px);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: var(--fs-d2); margin-bottom: var(--sp-3); }
.page-hero p { color: var(--c-on-dark); max-width: 68ch; margin: 0; }
.page-hero--product h1 { font-size: clamp(1.75rem, 3.6vw, 2.75rem); }
.breadcrumbs { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--c-steel-2); margin-bottom: var(--sp-4); }
.breadcrumbs a { color: var(--c-steel-2); }
.breadcrumbs a:hover { color: #fff; }
.breadcrumbs span[aria-current] { color: #fff; }

/* ==========================================================================
   7. 深色通栏 + 斜切 CTA 带
   ========================================================================== */
.band-cta { background: var(--c-ink); color: #fff; padding: clamp(2.5rem, 5vw, 4.5rem) 0; position: relative; overflow: hidden; }
.band-cta::after { content: ""; position: absolute; inset: 0;
	background: repeating-linear-gradient(135deg, rgba(255,255,255,.045) 0 1px, transparent 1px 11px); }
.band-cta .container { position: relative; z-index: 2; }
.band-cta__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-5); }
.band-cta h2 { margin: 0 0 0.35rem; font-size: var(--fs-d3); }
.band-cta p { margin: 0; color: var(--c-on-dark); }
.band-signal { background: var(--c-signal); color: #fff; }
.band-signal a { color: #fff; text-decoration: underline; }

/* ==========================================================================
   8. 车型卡（按品类着色）
   ========================================================================== */
.model-card {
	position: relative; display: flex; flex-direction: column; justify-content: flex-end;
	min-height: 340px; padding: var(--sp-5);
	background:
		linear-gradient(to top, rgba(0, 0, 0, 0.42) 0%, rgba(0, 0, 0, 0) 64%),
		linear-gradient(162deg, var(--tint-a, var(--c-ink-2)) 0%, var(--tint-b, var(--c-ink)) 100%);
	color: #fff; overflow: hidden; border: 0;
	transition: transform var(--dur) var(--ease);
}
.model-card::before {
	content: ""; position: absolute; inset: 0;
	background: repeating-linear-gradient(135deg, rgba(255,255,255,.10) 0 1px, transparent 1px 10px);
	opacity: .5;
}
.model-card > * { position: relative; z-index: 2; }
.model-card:hover { transform: translateY(-4px); }
.model-card__media { position: absolute; inset: 0; z-index: 1; }
.model-card__media img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: transform .6s var(--ease); }
.model-card:hover .model-card__media img { transform: scale(1.045); }
.model-card__eyebrow { display: block; font-size: 0.625rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,.82); margin-bottom: 0.5rem; }
.model-card__title { display: block; font-family: var(--f-display); font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; text-transform: uppercase; line-height: 0.95; margin: 0 0 0.5rem; color: #fff; }
.model-card__excerpt { display: block; font-size: 0.875rem; color: rgba(255,255,255,.86); margin: 0 0 var(--sp-4); max-width: 46ch; }
.model-card__specs { display: flex; flex-wrap: wrap; gap: 0.4rem 1.25rem; margin: 0 0 var(--sp-5); padding: 0; list-style: none;
	font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,.92); }
.model-card__specs li { display: flex; align-items: center; gap: 0.4rem; }
.model-card__specs li::before { content: ""; width: 5px; height: 5px; background: var(--c-amber); }
.model-card .btn { align-self: flex-start; }
.tint-cargo { --tint-a: var(--tint-cargo-a); --tint-b: var(--tint-cargo-b); }
.tint-electric { --tint-a: var(--tint-electric-a); --tint-b: var(--tint-electric-b); }
.tint-passenger { --tint-a: var(--tint-passenger-a); --tint-b: var(--tint-passenger-b); }
.tint-gas { --tint-a: var(--tint-gas-a); --tint-b: var(--tint-gas-b); }

/* 分类卡（archive 顶部） */
.cat-card { display: block; padding: var(--sp-5); background: var(--c-mist); border-left: 4px solid var(--c-signal); position: relative; }
.cat-card:hover { background: var(--c-ink); color: #fff; }
.cat-card:hover .card__title, .cat-card:hover .cat-card__more { color: #fff; }
.cat-card__title { font-family: var(--f-display); font-size: 1.4rem; text-transform: uppercase; margin: 0 0 0.35rem; }
.cat-card__more { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-signal); }

/* ==========================================================================
   9. 通用卡片
   ========================================================================== */
.card, .product-card, .post-card, .why-card {
	background: #fff; border: 1px solid var(--c-line); border-radius: 0;
	display: flex; flex-direction: column; position: relative; overflow: hidden;
	transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.card:hover, .product-card:hover, .post-card:hover, .why-card:hover { border-color: var(--c-ink); transform: translateY(-3px); }
.card__media, .product-card__media { position: relative; aspect-ratio: 4 / 3; background: var(--c-mist-2); overflow: hidden; }
.card__media img, .product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.card:hover .card__media img, .product-card:hover .card__media img { transform: scale(1.04); }
.card__placeholder { display: grid; place-items: center; height: 100%; color: var(--c-steel-2);
	font-size: 0.625rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.card__body { padding: var(--sp-5); display: flex; flex-direction: column; flex: 1; }
.card__model { font-family: var(--f-mono); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.1em;
	text-transform: uppercase; color: var(--c-signal); margin-bottom: 0.5rem; }
.card__title { font-family: var(--f-display); font-size: 1.5rem; font-weight: 700; text-transform: uppercase;
	line-height: 1; margin: 0 0 0.6rem; color: var(--c-ink); }
.card__excerpt { font-size: 0.875rem; color: var(--c-steel); margin: 0 0 var(--sp-4); }
.card__cta { margin-top: auto; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-ink); }
.card:hover .card__cta { color: var(--c-signal); }
.card__body .spec-strip { margin-top: auto; }

.why-card { padding: var(--sp-5); }
.why-card::before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: var(--c-signal); transform: scaleX(0); transform-origin: left; transition: transform var(--dur) var(--ease); }
.why-card:hover::before { transform: scaleX(1); }
.why-card__num { font-family: var(--f-mono); font-size: 0.75rem; font-weight: 700; color: var(--c-steel-2); letter-spacing: 0.1em; }
.why-card h3 { margin: var(--sp-3) 0 var(--sp-3); font-size: 1.25rem; }
.why-card p { margin: 0; font-size: 0.875rem; color: var(--c-steel); }

/* 参数条 */
.spec-strip { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; margin: var(--sp-4) 0 0; padding: var(--sp-3) 0 0;
	border-top: 1px solid var(--c-line); list-style: none; }
.spec-strip li { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-steel); }
.spec-strip li strong { color: var(--c-ink); }

/* 筛选 / 标签 */
.filter-row { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; margin-bottom: var(--sp-6); }
.filter-row--center { justify-content: center; }
.filter-label { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-steel); }
.chip { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.9rem;
	border: 1px solid var(--c-line-2); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em;
	text-transform: uppercase; color: var(--c-ink); background: #fff; }
.chip:hover { border-color: var(--c-ink); background: var(--c-ink); color: #fff; }
.chip--active { background: var(--c-signal-btn); border-color: var(--c-signal-btn); color: #fff; }
.chip__count { color: var(--c-steel-2); }
.chip--active .chip__count { color: rgba(255,255,255,.8); }
.result-count { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-steel); margin-bottom: var(--sp-4); }

/* 数据带 */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--c-line); background: #fff; }
.stats > div { padding: var(--sp-6) var(--sp-5); border-right: 1px solid var(--c-line); }
.stats > div:last-child { border-right: 0; }
.stats dt { font-size: 0.625rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-steel); margin-bottom: 0.5rem; }
.stats dd { margin: 0; font-family: var(--f-display); font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 0.9; text-transform: uppercase; }
.stats dd span { font-size: 0.9rem; letter-spacing: 0.1em; color: var(--c-steel); margin-left: 0.35rem; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.stats > div:nth-child(2n) { border-right: 0; } .stats > div:nth-child(-n+2) { border-bottom: 1px solid var(--c-line); } }
@media (max-width: 520px) { .stats { grid-template-columns: minmax(0, 1fr); }
	.stats > div { border-right: 0; border-bottom: 1px solid var(--c-line); } .stats > div:last-child { border-bottom: 0; } }

/* 应用场景方块 */
.app-tile { position: relative; min-height: 220px; padding: var(--sp-5); background: var(--c-ink-2); color: #fff;
	display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; }
.app-tile::before { content: ""; position: absolute; inset: 0;
	background: repeating-linear-gradient(135deg, rgba(255,255,255,.09) 0 1px, transparent 1px 10px); }
.app-tile > * { position: relative; z-index: 2; }
.app-tile h3 { font-size: 1.375rem; margin: 0 0 0.35rem; }
.app-tile p { margin: 0; font-size: 0.8125rem; color: var(--c-on-dark); }
.app-tile__num { position: absolute; top: var(--sp-5); right: var(--sp-5); z-index: 2;
	font-family: var(--f-display); font-size: 2.5rem; font-weight: 700; color: rgba(255,255,255,.16); line-height: 1; }

/* 视频区（点击才加载 YouTube，避免第三方请求与拖慢首屏）
   6 列栅格 + 跨列：第一行 3 张、第二行 2 张自动铺满，5 个视频不会留空缺 */
.video-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: var(--sp-5); }
.video-card { grid-column: span 2; }
.video-card:nth-child(4), .video-card:nth-child(5) { grid-column: span 3; }
@media (max-width: 1024px) {
	.video-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
	.video-card, .video-card:nth-child(4), .video-card:nth-child(5) { grid-column: span 2; }
}
@media (max-width: 680px) {
	.video-grid { grid-template-columns: minmax(0, 1fr); }
	.video-card, .video-card:nth-child(4), .video-card:nth-child(5) { grid-column: auto; }
}
.video-card { margin: 0; }
.video-card__btn { position: relative; display: block; width: 100%; padding: 0; border: 0; cursor: pointer;
	background: var(--c-ink-3); overflow: hidden; aspect-ratio: 16 / 9; }
.video-card__btn img { width: 100%; height: 100%; object-fit: cover; opacity: .82;
	transition: transform .6s var(--ease), opacity var(--dur) var(--ease); }
.video-card__btn:hover img { transform: scale(1.04); opacity: 1; }
.video-card__play { position: absolute; left: 0.85rem; bottom: 0.85rem; width: 44px; height: 44px;
	background: var(--c-signal-btn); display: grid; place-items: center; }
.video-card__play::after { content: ""; border-style: solid; border-width: 8px 0 8px 13px;
	border-color: transparent transparent transparent #fff; margin-left: 3px; }
.video-card__btn iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-card__caption { padding: var(--sp-4) 0 0; }
.video-card__caption strong { display: block; font-family: var(--f-display); font-size: 1.25rem;
	text-transform: uppercase; color: #fff; letter-spacing: 0.01em; line-height: 1.05; }
.video-card__caption span { display: block; margin-top: 0.4rem; font-size: 0.8125rem; color: var(--c-on-dark); }

/* 常见问答：答案直接可见（AEO 直答块，不用折叠，便于被摘录） */
.faq-list { border-top: 1px solid var(--c-line); }
.faq-item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: var(--sp-5);
	padding: var(--sp-5) 0; border-bottom: 1px solid var(--c-line); }
@media (max-width: 768px) { .faq-item { grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); } }
.faq-item__q { display: flex; align-items: baseline; gap: 0.75rem; margin: 0; font-family: var(--f-display);
	font-size: 1.3125rem; font-weight: 700; text-transform: uppercase; line-height: 1.05; }
.faq-item__num { font-family: var(--f-mono); font-size: 0.75rem; font-weight: 700; color: var(--c-signal); }
.faq-item__a { margin: 0; font-size: 0.9375rem; color: var(--c-steel); }

/* ==========================================================================
   10. 产品详情页
   ========================================================================== */
.product-layout { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: var(--sp-7); align-items: start; }
@media (max-width: 1024px) { .product-layout { grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); } }
.product-main { min-width: 0; }
.product-model { font-family: var(--f-mono); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.14em;
	text-transform: uppercase; color: var(--c-signal); margin-bottom: var(--sp-3); }
.product-lead { font-size: var(--fs-lead); color: var(--c-steel); max-width: 66ch; }
.product-gallery { margin-bottom: var(--sp-5); }
.product-gallery img { width: 100%; border: 1px solid var(--c-line); }
.product-gallery__thumbs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--sp-3); margin-top: var(--sp-3); }
.product-gallery__thumb { border: 1px solid var(--c-line); background: none; padding: 0; cursor: pointer; }
.product-gallery__thumb:hover, .product-gallery__thumb[aria-current="true"] { border-color: var(--c-signal); }
.product-gallery__empty { display: grid; place-items: center; aspect-ratio: 4/3; background: var(--c-mist);
	border: 1px dashed var(--c-line-2); color: var(--c-steel-2); font-size: 0.6875rem; letter-spacing: 0.16em; text-transform: uppercase; }
.product-video { aspect-ratio: 16/9; margin: var(--sp-5) 0; background: var(--c-ink); }

.product-specs { margin-top: var(--sp-7); }
.spec-group { margin-bottom: var(--sp-6); }
.spec-group h3 { font-size: 1.25rem; padding-bottom: var(--sp-3); border-bottom: 2px solid var(--c-ink); margin-bottom: 0; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.spec-table th, .spec-table td { padding: 0.8rem 0.9rem; border-bottom: 1px solid var(--c-line); text-align: left; vertical-align: top; }
.spec-table th { width: 42%; font-weight: 700; font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-steel); }
.spec-table tr:nth-child(odd) td { background: var(--c-mist); }
.spec-group:first-of-type .spec-table tr:nth-child(odd) td { background: var(--c-mist); }
.spec-disclaimer { font-size: 0.75rem; color: var(--c-steel-2); }

.product-aside { position: sticky; top: calc(var(--header-h) + 1rem); }
.quote-box { background: var(--c-ink); color: #fff; padding: var(--sp-5); position: relative; overflow: hidden; }
.quote-box::after { content: ""; position: absolute; inset: 0;
	background: repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 1px, transparent 1px 10px); }
.quote-box > * { position: relative; z-index: 2; }
.quote-box h3 { font-size: 1.5rem; margin-bottom: var(--sp-2); }
.quote-facts { margin: 0 0 var(--sp-5); padding: 0; list-style: none; }
.quote-facts li { display: flex; justify-content: space-between; gap: var(--sp-4); padding: 0.65rem 0;
	border-bottom: 1px solid var(--c-hair-dark); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; }
.quote-facts li span:first-child { color: var(--c-steel-2); }
.quote-facts li span:last-child { font-weight: 700; text-align: right; }
.quote-note { font-size: 0.6875rem; color: var(--c-steel-2); margin: var(--sp-4) 0 0; }
/* 深色报价盒里的次要按钮必须是浅色字，否则深字压深底＝看起来是个空白框 */
.quote-box .btn--ghost { color: #fff; border-color: rgba(255, 255, 255, 0.45); }
.quote-box .btn--ghost:hover { background: #fff; border-color: #fff; color: var(--c-ink); }
.contact-list { list-style: none; margin: 0 0 var(--sp-5); padding: 0; }
.contact-list li { padding: 0.75rem 0; border-bottom: 1px solid var(--c-hair-dark); }
.contact-list a { font-weight: 700; }
.contact-note { font-size: 0.75rem; color: var(--c-steel-2); }
.wecom { padding: var(--sp-4); border: 1px dashed var(--c-hair-dark); font-size: 0.75rem; color: var(--c-on-dark); }

/* 询盘表单 */
.inquiry-form { display: grid; gap: var(--sp-4); }
.field { display: grid; gap: 0.4rem; }
.field label { font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: inherit; }
.field input, .field textarea, .field select {
	width: 100%; padding: 0.85rem 0.9rem; border: 1px solid var(--c-line-2); border-radius: 0;
	background: #fff; color: var(--c-ink); font: inherit; font-size: 0.9375rem;
	transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
	border-color: var(--c-signal); box-shadow: 0 0 0 3px rgba(255,90,31,.16); outline: none;
}
.field textarea { min-height: 130px; resize: vertical; }
.req { color: var(--c-signal); }
.form-actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; }
.form-note { font-size: 0.75rem; color: var(--c-steel-2); }
.form-status { font-size: 0.875rem; font-weight: 700; }
.form-status[data-state="ok"] { color: #12805c; }
.form-status[data-state="error"] { color: #c92a2a; }
.form-honeypot { position: absolute; left: -9999px; }
.empty-state { padding: var(--sp-7); background: var(--c-mist); border: 1px dashed var(--c-line-2); text-align: center; }
.empty-state__actions { display: flex; gap: var(--sp-3); justify-content: center; flex-wrap: wrap; margin-top: var(--sp-4); }
.empty-state__search { margin-top: var(--sp-4); }
.pagination { display: flex; gap: var(--sp-2); justify-content: center; margin-top: var(--sp-7); }
.pagination a, .pagination span { padding: 0.55rem 0.9rem; border: 1px solid var(--c-line-2);
	font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; }
.pagination .current { background: var(--c-signal-btn); border-color: var(--c-signal-btn); color: #fff; }
.legal { font-size: 0.9375rem; color: var(--c-steel); }
.legal h2 { font-size: 1.25rem; margin-top: var(--sp-6); }
.legal-links { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.placeholder-note { padding: var(--sp-4); background: #fff6ed; border-left: 4px solid var(--c-amber);
	font-size: 0.8125rem; color: #6b4413; }

/* ==========================================================================
   11. 页脚
   ========================================================================== */
.site-footer { background: var(--c-ink); color: var(--c-on-dark); padding: var(--sp-section) 0 var(--sp-5); font-size: 0.875rem; }
.site-footer .container { position: relative; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--sp-6); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }
.site-footer h3 { font-size: 1.15rem; color: #fff; margin-bottom: var(--sp-4); }
.site-footer h4 { font-family: var(--f-body); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.18em;
	text-transform: uppercase; color: #fff; margin: 0 0 var(--sp-4); padding-bottom: var(--sp-3); border-bottom: 2px solid var(--c-signal); }
.footer-about p { font-size: 0.8125rem; color: var(--c-on-dark); }
.footer-mark { margin-top: var(--sp-8); padding-top: var(--sp-5); border-top: 1px solid var(--c-hair-dark);
	display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--sp-4); }
.footer-mark__word { font-family: var(--f-display); font-size: clamp(2.75rem, 11vw, 8.5rem); line-height: 0.8;
	font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em; color: rgba(255, 255, 255, 0.10); }
.footer-mark__tag { font-size: 0.625rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-steel-2); }
.footer-list { list-style: none; margin: 0; padding: 0; }
.footer-list li { padding: 0.4rem 0; }
.footer-list a:hover { color: #fff; }
.legal-links { margin-top: var(--sp-6); padding-top: var(--sp-4); border-top: 1px solid var(--c-hair-dark);
	justify-content: space-between; font-size: 0.75rem; }

/* ==========================================================================
   12. 预览提示条 / 其他
   ========================================================================== */
.preview-ribbon {
	background: var(--c-amber); color: #40260a;
	font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
	text-align: center; padding: 0.45rem var(--gutter);
}
.site-main { display: block; }
.page-body { padding: var(--sp-section) 0; }
.contact-direct { margin-top: var(--sp-5); }
.facts-note a { color: var(--c-ink); text-decoration: underline; }

/* 动效偏好 */
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
	.card:hover, .product-card:hover, .post-card:hover, .why-card:hover, .model-card:hover, .btn:hover { transform: none; }
}